/* !
 * jQuery Mousewheel 3.1.13
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 */

(function (factory) {
    if ( typeof define === "function" && define.amd ) {
        // AMD. Register as an anonymous module.
        define(["../core/jquery"], factory);
    } else if (typeof exports === "object") {
        // Node/CommonJS style for Browserify
        module.exports = factory;
    } else {
        // Browser globals
        factory(jQuery);
    }
}(function ($) {

    var toFix  = ["wheel", "mousewheel", "DOMMouseScroll", "MozMousePixelScroll"],
        toBind = ( "onwheel" in document || document.documentMode >= 9 ) ?
            ["wheel"] : ["mousewheel", "DomMouseScroll", "MozMousePixelScroll"],
        slice  = Array.prototype.slice,
        nullLowestDeltaTimeout, lowestDelta;

    if ( $.event.fixHooks ) {
        for ( var i = toFix.length; i; ) {
            $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
        }
    }

    var special = $.event.special.mousewheel = {
        version: "3.1.12",

        setup: function () {
            if ( this.addEventListener ) {
                for ( var i = toBind.length; i; ) {
                    this.addEventListener( toBind[--i], handler, false );
                }
            } else {
                this.onmousewheel = handler;
            }
        },

        teardown: function () {
            if ( this.removeEventListener ) {
                for ( var i = toBind.length; i; ) {
                    this.removeEventListener( toBind[--i], handler, false );
                }
            } else {
                this.onmousewheel = null;
            }
        },

        settings: {
            adjustOldDeltas: true, // see shouldAdjustOldDeltas() below
            normalizeOffset: true  // calls getBoundingClientRect for each event
        }
    };

    $.fn.extend({
        mousewheel: function (fn) {
            return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel");
        },

        unmousewheel: function (fn) {
            return this.unbind("mousewheel", fn);
        }
    });


    function handler (event) {
        var orgEvent   = event || window.event,
            args       = slice.call(arguments, 1),
            delta      = 0,
            deltaX     = 0,
            deltaY     = 0,
            absDelta   = 0,
            offsetX    = 0,
            offsetY    = 0;
        event = $.event.fix(orgEvent);
        event.type = "mousewheel";

        // Old school scrollwheel delta
        if ( "detail"      in orgEvent ) { deltaY = orgEvent.detail * -1;      }
        if ( "wheelDelta"  in orgEvent ) { deltaY = orgEvent.wheelDelta;       }
        if ( "wheelDeltaY" in orgEvent ) { deltaY = orgEvent.wheelDeltaY;      }
        if ( "wheelDeltaX" in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }

        // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
        if ( "axis" in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
            deltaX = deltaY * -1;
            deltaY = 0;
        }

        // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
        delta = deltaY === 0 ? deltaX : deltaY;

        // New school wheel delta (wheel event)
        if ( "deltaY" in orgEvent ) {
            deltaY = orgEvent.deltaY * -1;
            delta  = deltaY;
        }
        if ( "deltaX" in orgEvent ) {
            deltaX = orgEvent.deltaX;
            if ( deltaY === 0 ) { delta  = deltaX * -1; }
        }

        // No change actually happened, no reason to go any further
        if ( deltaY === 0 && deltaX === 0 ) { return; }

        // Need to convert lines and pages to pixels if we aren't already in pixels
        // There are three delta modes:
        //   * deltaMode 0 is by pixels, nothing to do
        //   * deltaMode 1 is by lines
        //   * deltaMode 2 is by pages
        if ( orgEvent.deltaMode === 1 ) {
            var lineHeight = 40;
            delta  *= lineHeight;
            deltaY *= lineHeight;
            deltaX *= lineHeight;
        } else if ( orgEvent.deltaMode === 2 ) {
            var pageHeight = 800;
            delta  *= pageHeight;
            deltaY *= pageHeight;
            deltaX *= pageHeight;
        }

        // Store lowest absolute delta to normalize the delta values
        absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );

        if ( !lowestDelta || absDelta < lowestDelta ) {
            lowestDelta = absDelta;

            // Adjust older deltas if necessary
            if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
                lowestDelta /= 40;
            }
        }

        // Adjust older deltas if necessary
        if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
            // Divide all the things by 40!
            delta  /= 40;
            deltaX /= 40;
            deltaY /= 40;
        }

        // Get a whole, normalized value for the deltas
        delta  = Math[ delta  >= 1 ? "floor" : "ceil" ](delta  / lowestDelta);
        deltaX = Math[ deltaX >= 1 ? "floor" : "ceil" ](deltaX / lowestDelta);
        deltaY = Math[ deltaY >= 1 ? "floor" : "ceil" ](deltaY / lowestDelta);

        // Normalise offsetX and offsetY properties
        if ( special.settings.normalizeOffset && this.getBoundingClientRect ) {
            var boundingRect = this.getBoundingClientRect();
            offsetX = event.clientX - boundingRect.left;
            offsetY = event.clientY - boundingRect.top;
        }

        // Add information to the event object
        event.deltaX = deltaX;
        event.deltaY = deltaY;
        event.deltaFactor = lowestDelta;
        event.offsetX = offsetX;
        event.offsetY = offsetY;
        // Go ahead and set deltaMode to 0 since we converted to pixels
        // Although this is a little odd since we overwrite the deltaX/Y
        // properties with normalized deltas.
        event.deltaMode = 0;

        // Add event and delta to the front of the arguments
        args.unshift(event, delta, deltaX, deltaY);

        // Clearout lowestDelta after sometime to better
        // handle multiple device types that give different
        // a different lowestDelta
        // Ex: trackpad = 3 and mouse wheel = 120
        if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
        nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);

        return ($.event.dispatch || $.event.handle).apply(this, args);
    }

    function nullLowestDelta () {
        lowestDelta = null;
    }

    function shouldAdjustOldDeltas (orgEvent, absDelta) {
        // If this is an older event and the delta is divisable by 120,
        // then we are assuming that the browser is treating this as an
        // older mouse wheel event and that we should divide the deltas
        // by 40 to try and get a more usable deltaFactor.
        // Side note, this actually impacts the reported scroll distance
        // in older browsers and can cause scrolling to be slower than native.
        // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
        return special.settings.adjustOldDeltas && orgEvent.type === "mousewheel" && absDelta % 120 === 0;
    }

}));/**
 * Created by User on 2017/3/21.
 */
BI.FormulaCollections = ["abs", "ABS", "acos", "ACOS", "acosh", "ACOSH", "add2array", "ADD2ARRAY", "and", "AND", "array", "ARRAY", "asin", "ASIN", "asinh", "ASINH", "atan", "ATAN", "atan2", "ATAN2", "atanh", "ATANH", "average", "AVERAGE", "bitnot", "BITNOT", "bitoperation", "BITOPERATION", "ceiling", "CEILING", "char", "CHAR", "circular", "CIRCULAR", "class", "CLASS", "cnmoney", "CNMONEY", "code", "CODE", "col", "COL", "colcount", "COLCOUNT", "colname", "COLNAME", "combin", "COMBIN", "concatenate", "CONCATENATE", "correl", "CORREL", "cos", "COS", "cosh", "COSH", "count", "COUNT", "crosslayertotal", "CROSSLAYERTOTAL", "date", "DATE", "datedelta", "DATEDELTA", "datedif", "DATEDIF", "dateinmonth", "DATEINMONTH", "dateinquarter", "DATEINQUARTER", "dateinweek", "DATEINWEEK", "dateinyear", "DATEINYEAR", "datesubdate", "DATESUBDATE", "datetime", "DATETIME", "datetonumber", "DATETONUMBER", "day", "DAY", "days360", "DAYS360", "daysofmonth", "DAYSOFMONTH", "daysofquarter", "DAYSOFQUARTER", "daysofyear", "DAYSOFYEAR", "dayvalue", "DAYVALUE", "decimal", "DECIMAL", "decode", "DECODE", "degrees", "DEGREES", "encode", "ENCODE", "endwith", "ENDWITH", "enmoney", "ENMONEY", "ennumber", "ENNUMBER", "eval", "EVAL", "even", "EVEN", "exact", "EXACT", "exp", "EXP", "fact", "FACT", "fields", "FIELDS", "filename", "FILENAME", "filesize", "FILESIZE", "filetype", "FILETYPE", "find", "FIND", "floor", "FLOOR", "format", "FORMAT", "getuserdepartments", "GETUSERDEPARTMENTS", "getuserjobtitles", "GETUSERJOBTITLES", "greparray", "GREPARRAY", "hierarchy", "HIERARCHY", "hour", "HOUR", "i18n", "I18N", "if", "IF", "inarray", "INARRAY", "index", "INDEX", "indexof", "INDEXOF", "indexofarray", "INDEXOFARRAY", "int", "INT", "isnull", "ISNULL", "joinarray", "JOINARRAY", "jvm", "JVM", "layertotal", "LAYERTOTAL", "left", "LEFT", "len", "LEN", "let", "LET", "ln", "LN", "log", "LOG", "log10", "LOG10", "lower", "LOWER", "lunar", "LUNAR", "map", "MAP", "maparray", "MAPARRAY", "max", "MAX", "median", "MEDIAN", "mid", "MID", "min", "MIN", "minute", "MINUTE", "mod", "MOD", "mom", "MOM", "month", "MONTH", "monthdelta", "MONTHDELTA", "now", "NOW", "numto", "NUMTO", "nvl", "NVL", "odd", "ODD", "or", "OR", "pi", "PI", "power", "POWER", "product", "PRODUCT", "promotion", "PROMOTION", "proper", "PROPER", "proportion", "PROPORTION", "radians", "RADIANS", "rand", "RAND", "randbetween", "RANDBETWEEN", "range", "RANGE", "rank", "RANK", "records", "RECORDS", "regexp", "REGEXP", "removearray", "REMOVEARRAY", "repeat", "REPEAT", "replace", "REPLACE", "reverse", "REVERSE", "reversearray", "REVERSEARRAY", "right", "RIGHT", "round", "ROUND", "round5", "ROUND5", "rounddown", "ROUNDDOWN", "roundup", "ROUNDUP", "row", "ROW", "rowcount", "ROWCOUNT", "second", "SECOND", "seq", "SEQ", "sign", "SIGN", "sin", "SIN", "sinh", "SINH", "slicearray", "SLICEARRAY", "sort", "SORT", "sortarray", "SORTARRAY", "split", "SPLIT", "sql", "SQL", "sqrt", "SQRT", "startwith", "STARTWITH", "stdev", "STDEV", "substitute", "SUBSTITUTE", "sum", "SUM", "sumsq", "SUMSQ", "switch", "SWITCH", "tabledatafields", "TABLEDATAFIELDS", "tabledatas", "TABLEDATAS", "tables", "TABLES", "tan", "TAN", "tanh", "TANH", "time", "TIME", "tobigdecimal", "TOBIGDECIMAL", "tobinary", "TOBINARY", "todate", "TODATE", "today", "TODAY", "todouble", "TODOUBLE", "tohex", "TOHEX", "toimage", "TOIMAGE", "tointeger", "TOINTEGER", "tooctal", "TOOCTAL", "totext", "TOTEXT", "treelayer", "TREELAYER", "trim", "TRIM", "trunc", "TRUNC", "uniquearray", "UNIQUEARRAY", "upper", "UPPER", "uuid", "UUID", "value", "VALUE", "webimage", "WEBIMAGE", "week", "WEEK", "weekdate", "WEEKDATE", "weekday", "WEEKDAY", "weightedaverage", "WEIGHTEDAVERAGE", "year", "YEAR", "yeardelta", "YEARDELTA"];
/**
 * 当没有元素时有提示信息的view
 *
 * Created by GUY on 2015/9/8.
 * @class BI.Pane
 * @extends BI.Widget
 * @abstract
 */
BI.Pane = BI.inherit(BI.Widget, {

    _defaultConfig: function () {
        return BI.extend(BI.Pane.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-pane",
            tipText: BI.i18nText("BI-No_Selected_Item"),
            overlap: true,
            onLoaded: BI.emptyFn
        });
    },

    _init: function () {
        BI.Pane.superclass._init.apply(this, arguments);
        if (this.__async) {
            this.loading();
        }
    },

    _render: function () {
        BI.Pane.superclass._render.apply(this, arguments);
        if (this.__async) {
            this.loaded();
        }
    },

    _assertTip: function () {
        var o = this.options;
        if (!this._tipText) {
            this._tipText = BI.createWidget({
                type: "bi.label",
                cls: "bi-tips",
                text: o.tipText,
                height: 25
            });
            BI.createWidget({
                type: "bi.absolute_center_adapt",
                element: this,
                items: [this._tipText]
            });
        }
    },

    loading: function () {
        var self = this, o = this.options;
        if (o.overlap === true) {
            if (!BI.Layers.has(this.getName())) {
                BI.createWidget({
                    type: "bi.vtape",
                    items: [{
                        el: {
                            type: "bi.layout",
                            cls: "loading-background"
                        },
                        height: 30
                    }],
                    element: BI.Layers.make(this.getName(), this)
                });
            }
            BI.Layers.show(self.getName());
        } else if (BI.isNull(this._loading)) {
            this._loading = BI.createWidget({
                type: "bi.layout",
                cls: "loading-background",
                height: 30
            });
            this._loading.element.css("zIndex", 1);
            BI.createWidget({
                type: "bi.absolute",
                element: this,
                items: [{
                    el: this._loading,
                    left: 0,
                    right: 0,
                    top: 0
                }]
            });
        }
    },

    loaded: function () {
        var self = this, o = this.options;
        BI.Layers.remove(self.getName());
        this._loading && this._loading.destroy();
        this._loading && (this._loading = null);
        o.onLoaded();
        self.fireEvent(BI.Pane.EVENT_LOADED);
    },

    check: function () {
        this.setTipVisible(BI.isEmpty(this.options.items));
    },

    setTipVisible: function (b) {
        if (b === true) {
            this._assertTip();
            this._tipText.setVisible(true);
        } else {
            this._tipText && this._tipText.setVisible(false);
        }
    },

    populate: function (items) {
        this.options.items = items || [];
        this.check();
    },

    empty: function () {

    }
});
BI.Pane.EVENT_LOADED = "EVENT_LOADED";/**
 * guy
 * 这仅仅只是一个超类, 所有简单控件的基类
 * 1、类的控制，
 * 2、title的控制
 * 3、文字超过边界显示3个点
 * 4、cursor默认pointor
 * @class BI.Single
 * @extends BI.Widget
 * @abstract
 */
BI.Single = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        var conf = BI.Single.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-single",
            readonly: false,
            title: null,
            warningTitle: null,
            tipType: null, // success或warning
            value: null,
            belowMouse: false   // title是否跟随鼠标
        });
    },

    _showToolTip: function (e, opt) {
        opt || (opt = {});
        var self = this, o = this.options;
        var type = this.getTipType() || (this.isEnabled() ? "success" : "warning");
        var title = type === "success" ? this.getTitle() : (this.getWarningTitle() || this.getTitle());
        if (BI.isKey(title)) {
            BI.Tooltips.show(e, this.getName(), title, type, this, opt);
            if (o.action) {
                BI.Actions.runAction(o.action, "hover", o, this);
            }
            BI.Actions.runGlobalAction("hover", o, this);
        }
    },

    _hideTooltip: function () {
        var self = this;
        var tooltip = BI.Tooltips.get(this.getName());
        if (BI.isNotNull(tooltip)) {
            tooltip.element.fadeOut(200, function () {
                BI.Tooltips.remove(self.getName());
            });
        }
    },

    _init: function () {
        BI.Single.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        if (BI.isKey(o.title) || BI.isKey(o.warningTitle)
            || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
            this.enableHover({
                belowMouse: o.belowMouse,
                container: o.container
            });
        }
    },

    enableHover: function (opt) {
        opt || (opt = {});
        var self = this;
        if (!this._hoverBinded) {
            this.element.on("mouseenter.title" + this.getName(), function (e) {
                self._e = e;
                if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
                    self.timeout = BI.delay(function () {
                        self._showToolTip(self._e || e, opt);
                    }, 200);
                } else if (self.getTipType() === "success" || self.isEnabled()) {
                    self.timeout = BI.delay(function () {
                        self._showToolTip(self._e || e, opt);
                    }, 500);
                }
            });
            this.element.on("mousemove.title" + this.getName(), function (e) {
                self._e = e;
                if (!self.element.__isMouseInBounds__(e)) {
                    if (BI.isNotNull(self.timeout)) {
                        clearTimeout(self.timeout);
                    }
                    self._hideTooltip();
                }
            });
            this.element.on("mouseleave.title" + this.getName(), function () {
                self._e = null;
                if (BI.isNotNull(self.timeout)) {
                    clearTimeout(self.timeout);
                }
                self._hideTooltip();
            });
            this._hoverBinded = true;
        }
    },

    disabledHover: function () {
        // 取消hover事件
        if (BI.isNotNull(this.timeout)) {
            clearTimeout(this.timeout);
        }
        this._hideTooltip();
        $(this.element).unbind("mouseenter.title" + this.getName())
            .unbind("mousemove.title" + this.getName())
            .unbind("mouseleave.title" + this.getName());
        this._hoverBinded = false;
    },

    populate: function (items) {
        this.items = items || [];
    },

    // opt: {container: '', belowMouse: false}
    setTitle: function (title, opt) {
        this.options.title = title;
        if (BI.isKey(title) || BI.isFunction(title)) {
            this.enableHover(opt);
        } else {
            this.disabledHover();
        }
    },

    setWarningTitle: function (title, opt) {
        this.options.warningTitle = title;
        if (BI.isKey(title) || BI.isFunction(title)) {
            this.enableHover(opt);
        } else {
            this.disabledHover();
        }
    },

    getTipType: function () {
        return this.options.tipType;
    },

    isReadOnly: function () {
        return !!this.options.readonly;
    },

    getTitle: function () {
        var title = this.options.title;
        if(BI.isFunction(title)) {
            return title();
        }
        return title;
    },

    getWarningTitle: function () {
        var title = this.options.warningTitle;
        if(BI.isFunction(title)) {
            return title();
        }
        return title;
    },

    setValue: function (val) {
        if (!this.options.readonly) {
            this.options.value = val;
        }
    },

    getValue: function () {
        return this.options.value;
    },

    _unMount: function () {
        BI.Single.superclass._unMount.apply(this, arguments);
        BI.Tooltips.remove(this.getName());
    }
});/**
 * guy 表示一行数据，通过position来定位位置的数据
 * @class BI.Text
 * @extends BI.Single
 */
BI.Text = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Text.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text",
            textAlign: "left",
            whiteSpace: "normal",
            lineHeight: null,
            handler: null, // 如果传入handler,表示处理文字的点击事件，不是区域的
            hgap: 0,
            vgap: 0,
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0,
            text: "",
            py: ""
        });
    },

    _init: function () {
        BI.Text.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        if (o.hgap + o.lgap > 0) {
            this.element.css({
                "padding-left": o.hgap + o.lgap + "px"
            });
        }
        if (o.hgap + o.rgap > 0) {
            this.element.css({
                "padding-right": o.hgap + o.rgap + "px"
            });
        }
        if (o.vgap + o.tgap > 0) {
            this.element.css({
                "padding-top": o.vgap + o.tgap + "px"
            });
        }
        if (o.vgap + o.bgap > 0) {
            this.element.css({
                "padding-bottom": o.vgap + o.bgap + "px"
            });
        }
        if (BI.isNumber(o.height)) {
            this.element.css({lineHeight: o.height + "px"});
        }
        if (BI.isNumber(o.lineHeight)) {
            this.element.css({lineHeight: o.lineHeight + "px"});
        }
        this.element.css({
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace
        });
        if (o.handler) {
            this.text = BI.createWidget({
                type: "bi.layout",
                tagName: "span"
            });
            this.text.element.click(function () {
                o.handler(self.getValue());
            });
            BI.createWidget({
                type: "bi.default",
                element: this,
                items: [this.text]
            });
        } else {
            this.text = this;
        }
        if (BI.isKey(o.text)) {
            this.setText(o.text);
        } else if (BI.isKey(o.value)) {
            this.setText(o.value);
        }
        if (BI.isKey(o.keyword)) {
            this.text.element.__textKeywordMarked__(o.text, o.keyword, o.py);
        }
    },

    doRedMark: function (keyword) {
        var o = this.options;
        this.text.element.__textKeywordMarked__(o.text || o.value, keyword, o.py);
    },

    unRedMark: function () {
        var o = this.options;
        this.text.element.__textKeywordMarked__(o.text || o.value, "", o.py);
    },

    doHighLight: function () {
        this.text.element.addClass("bi-high-light");
    },

    unHighLight: function () {
        this.text.element.removeClass("bi-high-light");
    },

    setValue: function (text) {
        BI.Text.superclass.setValue.apply(this, arguments);
        if (!this.isReadOnly()) {
            this.setText(text);
        }
    },

    setStyle: function (css) {
        this.text.element.css(css);
    },

    setText: function (text) {
        BI.Text.superclass.setText.apply(this, arguments);
        this.options.text = text;
        this.text.element.html(BI.htmlEncode(text));
    }
});

BI.shortcut("bi.text", BI.Text);/**
 * guy
 * @class BI.BasicButton
 * @extends BI.Single
 *
 * 一般的button父级
 */
BI.BasicButton = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.BasicButton.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-basic-button" + (conf.invalid ? "" : " cursor-pointer"),
            value: "",
            text: "",
            stopEvent: false,
            stopPropagation: false,
            selected: false,
            once: false, // 点击一次选中有效,再点无效
            forceSelected: false, // 点击即选中, 选中了就不会被取消,与once的区别是forceSelected不影响事件的触发
            forceNotSelected: false, // 无论怎么点击都不会被选中
            disableSelected: false, // 使能选中

            shadow: false,
            isShadowShowingOnSelected: false,  // 选中状态下是否显示阴影
            trigger: null,
            handler: BI.emptyFn,
            bubble: null
        });
    },
    _init: function () {
        BI.BasicButton.superclass._init.apply(this, arguments);
        var opts = this.options;
        if (opts.selected === true) {
            BI.nextTick(BI.bind(function () {
                this.setSelected(opts.selected);
            }, this));
        }
        BI.nextTick(BI.bind(this.bindEvent, this));

        if (opts.shadow) {
            this._createShadow();
        }
        if (opts.level) {
            this.element.addClass("button-" + opts.level);
        }
    },

    _createShadow: function () {
        var self = this, o = this.options;

        var assertMask = function () {
            if (!self.$mask) {
                self.$mask = BI.createWidget(BI.isObject(o.shadow) ? o.shadow : {}, {
                    type: "bi.layout",
                    cls: "bi-button-mask"
                });
                self.$mask.invisible();
                BI.createWidget({
                    type: "bi.absolute",
                    element: self,
                    items: [{
                        el: self.$mask,
                        left: 0,
                        right: 0,
                        top: 0,
                        bottom: 0
                    }]
                });
            }
        };

        this.element.mouseup(function () {
            if (!self._hover && !o.isShadowShowingOnSelected) {
                assertMask();
                self.$mask.invisible();
            }
        });
        this.element.on("mouseenter." + this.getName(), function (e) {
            if (self.element.__isMouseInBounds__(e)) {
                if (self.isEnabled() && !self._hover && (o.isShadowShowingOnSelected || !self.isSelected())) {
                    assertMask();
                    self.$mask.visible();
                }
            }
        });
        this.element.on("mousemove." + this.getName(), function (e) {
            if (!self.element.__isMouseInBounds__(e)) {
                if (self.isEnabled() && !self._hover) {
                    assertMask();
                    self.$mask.invisible();
                }
            }
        });
        this.element.on("mouseleave." + this.getName(), function () {
            if (self.isEnabled() && !self._hover) {
                assertMask();
                self.$mask.invisible();
            }
        });
    },

    bindEvent: function () {
        var self = this;
        var o = this.options, hand = this.handle();
        if (!hand) {
            return;
        }
        hand = hand.element;
        var triggerArr = (o.trigger || "").split(",");
        BI.each(triggerArr, function (idx, trigger) {
            switch (trigger) {
                case "mouseup":
                    var mouseDown = false;
                    hand.mousedown(function () {
                        mouseDown = true;
                    });
                    hand.mouseup(function (e) {
                        if (mouseDown === true) {
                            clk(e);
                        }
                        mouseDown = false;
                        ev(e);
                    });
                    break;
                case "mousedown":
                    var mouseDown = false;
                    var selected = false;
                    hand.mousedown(function (e) {
                        // if (e.button === 0) {
                        $(document).bind("mouseup." + self.getName(), function (e) {
                            // if (e.button === 0) {
                            if (BI.DOM.isExist(self) && !hand.__isMouseInBounds__(e) && mouseDown === true && !selected) {
                                // self.setSelected(!self.isSelected());
                                self._trigger();
                            }
                            mouseDown = false;
                            $(document).unbind("mouseup." + self.getName());
                            // }
                        });
                        if (mouseDown === true) {
                            return;
                        }
                        if (self.isSelected()) {
                            selected = true;
                        } else {
                            clk(e);
                        }
                        mouseDown = true;
                        ev(e);
                        // }
                    });
                    hand.mouseup(function (e) {
                        // if (e.button === 0) {
                        if (BI.DOM.isExist(self) && mouseDown === true && selected === true) {
                            clk(e);
                        }
                        mouseDown = false;
                        selected = false;
                        $(document).unbind("mouseup." + self.getName());
                        // }
                    });
                    break;
                case "dblclick":
                    hand.dblclick(clk);
                    break;
                case "lclick":
                    var mouseDown = false;
                    var interval;
                    hand.mousedown(function (e) {
                        $(document).bind("mouseup." + self.getName(), function (e) {
                            interval && clearInterval(interval);
                            interval = null;
                            mouseDown = false;
                            $(document).unbind("mouseup." + self.getName());
                        });
                        if (mouseDown === true) {
                            return;
                        }
                        if (!self.isEnabled() || (self.isOnce() && self.isSelected())) {
                            return;
                        }
                        interval = setInterval(function () {
                            if (self.isEnabled()) {
                                self.doClick();
                            }
                        }, 180);
                        mouseDown = true;
                        ev(e);
                    });
                    break;
                default:
                    if (o.stopEvent || o.stopPropagation) {
                        hand.mousedown(function (e) {
                            ev(e);
                        });
                    }
                    hand.click(clk);
                    break;
            }
        });

        // 之后的300ms点击无效
        var onClick = BI.debounce(this._doClick, BI.EVENT_RESPONSE_TIME, {
            "leading": true,
            "trailing": false
        });

        function ev (e) {
            if (o.stopEvent) {
                e.stopEvent();
            }
            if (o.stopPropagation) {
                e.stopPropagation();
            }
        }

        function clk (e) {
            ev(e);
            if (!self.isEnabled() || (self.isOnce() && self.isSelected())) {
                return;
            }
            if (BI.isKey(o.bubble) || BI.isFunction(o.bubble)) {
                if (BI.isNull(self.combo)) {
                    var popup;
                    BI.createWidget({
                        type: "bi.absolute",
                        element: self,
                        items: [{
                            el: {
                                type: "bi.bubble_combo",
                                trigger: "",
                                ref: function () {
                                    self.combo = this;
                                },
                                el: {
                                    type: "bi.layout",
                                    height: "100%"
                                },
                                popup: {
                                    type: "bi.text_bubble_bar_popup_view",
                                    cls: "popup-content",
                                    text: getBubble(),
                                    ref: function () {
                                        popup = this;
                                    },
                                    listeners: [{
                                        eventName: BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,
                                        action: function (v) {
                                            self.combo.hideView();
                                            if (v) {
                                                onClick.apply(self, arguments);
                                            }
                                        }
                                    }]
                                },
                                listeners: [{
                                    eventName: BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW,
                                    action: function () {
                                        popup.populate(getBubble());
                                    }
                                }]
                            },
                            left: 0,
                            right: 0,
                            bottom: 0,
                            top: 0
                        }]
                    });
                }
                if (self.combo.isViewVisible()) {
                    self.combo.hideView();
                } else {
                    self.combo.showView();
                }
                return;
            }
            onClick.apply(self, arguments);
        }

        function getBubble () {
            var bubble = self.options.bubble;
            if (BI.isFunction(bubble)) {
                return bubble();
            }
            return bubble;
        }
    },

    _trigger: function () {
        var o = this.options;
        if (!this.isEnabled()) {
            return;
        }
        if (!this.isDisableSelected()) {
            this.isForceSelected() ? this.setSelected(true) :
                (this.isForceNotSelected() ? this.setSelected(false) :
                    this.setSelected(!this.isSelected()));
        }
        if (this.isValid()) {
            o.handler.call(this, this.getValue(), this);
            var v = this.getValue();
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.CLICK, v, this);
            this.fireEvent(BI.BasicButton.EVENT_CHANGE, v, this);
            if (o.action) {
                BI.Actions.runAction(o.action, "click", o);
            }
            BI.Actions.runGlobalAction("click", o);
        }
    },

    _doClick: function (e) {
        if (this.isValid()) {
            this.beforeClick(e);
        }
        this._trigger();
        if (this.isValid()) {
            this.doClick(e);
        }
    },

    beforeClick: function () {

    },

    doClick: function () {

    },

    handle: function () {
        return this;
    },

    hover: function () {
        this._hover = true;
        this.handle().element.addClass("hover");
        if (this.options.shadow) {
            this.$mask && this.$mask.setVisible(true);
        }
    },

    dishover: function () {
        this._hover = false;
        this.handle().element.removeClass("hover");
        if (this.options.shadow) {
            this.$mask && this.$mask.setVisible(false);
        }
    },

    setSelected: function (b) {
        var o = this.options;
        o.selected = b;
        if (b) {
            this.handle().element.addClass("active");
        } else {
            this.handle().element.removeClass("active");
        }
        if (o.shadow && !o.isShadowShowingOnSelected) {
            this.$mask && this.$mask.setVisible(false);
        }
    },

    isSelected: function () {
        return this.options.selected;
    },

    isOnce: function () {
        return this.options.once;
    },

    isForceSelected: function () {
        return this.options.forceSelected;
    },

    isForceNotSelected: function () {
        return this.options.forceNotSelected;
    },

    isDisableSelected: function () {
        return this.options.disableSelected;
    },

    setText: function (text) {
        this.options.text = text;
    },

    getText: function () {
        return this.options.text;
    },

    _setEnable: function (enable) {
        BI.BasicButton.superclass._setEnable.apply(this, arguments);
        if (enable === true) {
            this.element.removeClass("base-disabled disabled");
        } else if (enable === false) {
            this.element.addClass("base-disabled disabled");
        }
        if (!enable) {
            if (this.options.shadow) {
                this.$mask && this.$mask.setVisible(false);
            }
        }
    },

    empty: function () {
        $(document).unbind("mouseup." + this.getName());
        BI.BasicButton.superclass.empty.apply(this, arguments);
    },

    destroy: function () {
        BI.BasicButton.superclass.destroy.apply(this, arguments);
    }
});
BI.BasicButton.EVENT_CHANGE = "BasicButton.EVENT_CHANGE";/**
 * 表示一个可以展开的节点, 不仅有选中状态而且有展开状态
 *
 * Created by GUY on 2015/9/9.
 * @class BI.NodeButton
 * @extends BI.BasicButton
 * @abstract
 */
BI.NodeButton = BI.inherit(BI.BasicButton, {
    _defaultConfig: function () {
        var conf = BI.NodeButton.superclass._defaultConfig.apply(this, arguments);
        return BI.extend( conf, {
            baseCls: (conf.baseCls || "") + " bi-node",
            open: false
        });
    },

    _init: function () {
        BI.NodeButton.superclass._init.apply(this, arguments);
        var self = this;
        BI.nextTick(function () {
            self.setOpened(self.isOpened());
        });
    },

    doClick: function () {
        BI.NodeButton.superclass.doClick.apply(this, arguments);
        this.setOpened(!this.isOpened());
    },

    isOnce: function () {
        return false;
    },

    isOpened: function () {
        return !!this.options.open;
    },

    setOpened: function (b) {
        this.options.open = !!b;
    },

    triggerCollapse: function () {
        if(this.isOpened()) {
            this.setOpened(false);
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, this.getValue(), this);
        }
    },

    triggerExpand: function () {
        if(!this.isOpened()) {
            this.setOpened(true);
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, this.getValue(), this);
        }
    }
});/**
 * guy
 * tip提示
 * zIndex在10亿级别
 * @class BI.Tip
 * @extends BI.Single
 * @abstract
 */
BI.Tip = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-tip",
            zIndex: BI.zIndex_tip
        });
    },

    _init: function () {
        BI.Tip.superclass._init.apply(this, arguments);
        this.element.css({zIndex: this.options.zIndex});
    }
});/**
 * Created by GUY on 2015/6/26.
 * @class BI.ButtonGroup
 * @extends BI.Widget
 */

BI.ButtonGroup = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.ButtonGroup.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-button-group",
            behaviors: {},
            items: [],
            value: "",
            chooseType: BI.Selection.Single,
            layouts: [{
                type: "bi.center",
                hgap: 0,
                vgap: 0
            }]
        });
    },

    _init: function () {
        BI.ButtonGroup.superclass._init.apply(this, arguments);
        var o = this.options;
        var behaviors = {};
        BI.each(o.behaviors, function (key, rule) {
            behaviors[key] = BI.BehaviorFactory.createBehavior(key, {
                rule: rule
            });
        });
        this.behaviors = behaviors;
        this.populate(o.items);
        if(BI.isKey(o.value) || BI.isNotEmptyArray(o.value)){
            this.setValue(o.value);
        }
    },

    _createBtns: function (items) {
        var o = this.options;
        return BI.createWidgets(BI.createItems(items, {
            type: "bi.text_button"
        }));
    },

    _btnsCreator: function (items) {
        var self = this, args = Array.prototype.slice.call(arguments), o = this.options;
        var buttons = this._createBtns(items);
        args[0] = buttons;

        BI.each(this.behaviors, function (i, behavior) {
            behavior.doBehavior.apply(behavior, args);
        });
        BI.each(buttons, function (i, btn) {
            btn.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                if (type === BI.Events.CLICK) {
                    switch (o.chooseType) {
                        case BI.ButtonGroup.CHOOSE_TYPE_SINGLE:
                            self.setValue(btn.getValue());
                            break;
                        case BI.ButtonGroup.CHOOSE_TYPE_NONE:
                            self.setValue([]);
                            break;
                    }
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.fireEvent(BI.ButtonGroup.EVENT_CHANGE, value, obj);
                } else {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                }
            });
            btn.on(BI.Events.DESTROY, function () {
                BI.remove(self.buttons, btn);
            });
        });

        return buttons;
    },

    _packageBtns: function (btns) {
        var o = this.options;
        for (var i = o.layouts.length - 1; i > 0; i--) {
            btns = BI.map(btns, function (k, it) {
                return BI.extend({}, o.layouts[i], {
                    items: [
                        BI.extend({}, o.layouts[i].el, {
                            el: it
                        })
                    ]
                });
            });
        }
        return btns;
    },

    _packageSimpleItems: function (btns) {
        var o = this.options;
        return BI.map(o.items, function (i, item) {
            if (BI.stripEL(item) === item) {
                return btns[i];
            }
            return BI.extend({}, item, {
                el: btns[i]
            });
        });
    },

    _packageItems: function (items, packBtns) {
        return BI.createItems(BI.makeArrayByArray(items, {}), BI.clone(packBtns));
    },

    _packageLayout: function (items) {
        var o = this.options, layout = BI.deepClone(o.layouts[0]);

        var lay = BI.formatEL(layout).el;
        while (lay && lay.items && !BI.isEmpty(lay.items)) {
            lay = BI.formatEL(lay.items[0]).el;
        }
        lay.items = items;
        return layout;
    },

    // 如果是一个简单的layout
    _isSimpleLayout: function () {
        var o = this.options;
        return o.layouts.length === 1 && !BI.isArray(o.items[0]);
    },

    doBehavior: function () {
        var args = Array.prototype.slice.call(arguments);
        args.unshift(this.buttons);
        BI.each(this.behaviors, function (i, behavior) {
            behavior.doBehavior.apply(behavior, args);
        });
    },

    prependItems: function (items) {
        var o = this.options;
        var btns = this._btnsCreator.apply(this, arguments);
        this.buttons = BI.concat(btns, this.buttons);

        if (this._isSimpleLayout() && this.layouts && this.layouts.prependItems) {
            this.layouts.prependItems(btns);
            return;
        }

        items = this._packageItems(items, this._packageBtns(btns));
        this.layouts.prependItems(this._packageLayout(items).items);
    },

    addItems: function (items) {
        var o = this.options;
        var btns = this._btnsCreator.apply(this, arguments);
        this.buttons = BI.concat(this.buttons, btns);

        // 如果是一个简单的layout
        if (this._isSimpleLayout() && this.layouts && this.layouts.addItems) {
            this.layouts.addItems(btns);
            return;
        }

        items = this._packageItems(items, this._packageBtns(btns));
        this.layouts.addItems(this._packageLayout(items).items);
    },

    removeItemAt: function (indexes) {
        BI.removeAt(this.buttons, indexes);
        this.layouts.removeItemAt(indexes);
    },

    removeItems: function (values) {
        values = BI.isArray(values) ? values : [values];
        var deleted = [];
        BI.each(this.buttons, function (i, button) {
            if (BI.deepContains(values, button.getValue())) {
                deleted.push(i);
            }
        });
        BI.removeAt(this.buttons, deleted);
        this.layouts.removeItemAt(deleted);
    },

    populate: function (items) {
        items = items || [];
        this.empty();
        this.options.items = items;

        this.buttons = this._btnsCreator.apply(this, arguments);
        if (this._isSimpleLayout()) {
            items = this._packageSimpleItems(this.buttons);
        } else {
            items = this._packageItems(items, this._packageBtns(this.buttons));
        }

        this.layouts = BI.createWidget(BI.extend({element: this}, this._packageLayout(items)));
    },

    setNotSelectedValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (BI.deepContains(v, item.getValue())) {
                item.setSelected && item.setSelected(false);
            } else {
                item.setSelected && item.setSelected(true);
            }
        });
    },

    setEnabledValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (BI.deepContains(v, item.getValue())) {
                item.setEnable(true);
            } else {
                item.setEnable(false);
            }
        });
    },

    setValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (BI.deepContains(v, item.getValue())) {
                item.setSelected && item.setSelected(true);
            } else {
                item.setSelected && item.setSelected(false);
            }
        });
    },

    getNotSelectedValue: function () {
        var v = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !(item.isSelected && item.isSelected())) {
                v.push(item.getValue());
            }
        });
        return v;
    },

    getValue: function () {
        var v = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && item.isSelected && item.isSelected()) {
                v.push(item.getValue());
            }
        });
        return v;
    },

    getAllButtons: function () {
        return this.buttons;
    },

    getAllLeaves: function () {
        return this.buttons;
    },

    getSelectedButtons: function () {
        var btns = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isSelected && item.isSelected()) {
                btns.push(item);
            }
        });
        return btns;
    },

    getNotSelectedButtons: function () {
        var btns = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isSelected && !item.isSelected()) {
                btns.push(item);
            }
        });
        return btns;
    },

    getIndexByValue: function (value) {
        var index = -1;
        BI.any(this.buttons, function (i, item) {
            if (item.isEnabled() && item.getValue() === value) {
                index = i;
                return true;
            }
        });
        return index;
    },

    getNodeById: function (id) {
        var node;
        BI.any(this.buttons, function (i, item) {
            if (item.isEnabled() && item.options.id === id) {
                node = item;
                return true;
            }
        });
        return node;
    },

    getNodeByValue: function (value) {
        var node;
        BI.any(this.buttons, function (i, item) {
            if (item.isEnabled() && item.getValue() === value) {
                node = item;
                return true;
            }
        });
        return node;
    },

    empty: function () {
        BI.ButtonGroup.superclass.empty.apply(this, arguments);
        this.options.items = [];
    },

    destroy: function () {
        BI.ButtonGroup.superclass.destroy.apply(this, arguments);
        this.options.items = [];
    }
});
BI.extend(BI.ButtonGroup, {
    CHOOSE_TYPE_SINGLE: BI.Selection.Single,
    CHOOSE_TYPE_MULTI: BI.Selection.Multi,
    CHOOSE_TYPE_ALL: BI.Selection.All,
    CHOOSE_TYPE_NONE: BI.Selection.None,
    CHOOSE_TYPE_DEFAULT: BI.Selection.Default
});
BI.ButtonGroup.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.button_group", BI.ButtonGroup);/**
 * Created by GUY on 2015/8/10.
 * @class BI.ButtonTree
 * @extends BI.ButtonGroup
 */

BI.ButtonTree = BI.inherit(BI.ButtonGroup, {
    _defaultConfig: function () {
        return BI.extend(BI.ButtonTree.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-button-tree"
        });
    },

    _init: function () {
        BI.ButtonTree.superclass._init.apply(this, arguments);
    },

    setNotSelectedValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (!BI.isFunction(item.setSelected)) {
                item.setNotSelectedValue(v);
                return;
            }
            if (BI.deepContains(v, item.getValue())) {
                item.setSelected(false);
            } else {
                item.setSelected(true);
            }
        });
    },

    setEnabledValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (BI.isFunction(item.setEnabledValue)) {
                item.setEnabledValue(v);
                return;
            }
            if (BI.deepContains(v, item.getValue())) {
                item.setEnable(true);
            } else {
                item.setEnable(false);
            }
        });
    },

    setValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttons, function (i, item) {
            if (!BI.isFunction(item.setSelected)) {
                item.setValue(v);
                return;
            }
            if (BI.deepContains(v, item.getValue())) {
                item.setSelected(true);
            } else {
                item.setSelected(false);
            }
        });
    },

    getNotSelectedValue: function () {
        var v = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
                v = BI.concat(v, item.getNotSelectedValue());
                return;
            }
            if (item.isEnabled() && item.isSelected && !item.isSelected()) {
                v.push(item.getValue());
            }
        });
        return v;
    },

    getValue: function () {
        var v = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
                v = BI.concat(v, item.getValue());
                return;
            }
            if (item.isEnabled() && item.isSelected && item.isSelected()) {
                v.push(item.getValue());
            }
        });
        return v;
    },

    getSelectedButtons: function () {
        var btns = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
                btns = btns.concat(item.getSelectedButtons());
                return;
            }
            if (item.isSelected && item.isSelected()) {
                btns.push(item);
            }
        });
        return btns;
    },

    getNotSelectedButtons: function () {
        var btns = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
                btns = btns.concat(item.getNotSelectedButtons());
                return;
            }
            if (item.isSelected && !item.isSelected()) {
                btns.push(item);
            }
        });
        return btns;
    },

    // 获取所有的叶子节点
    getAllLeaves: function () {
        var leaves = [];
        BI.each(this.buttons, function (i, item) {
            if (item.isEnabled() && !BI.isFunction(item.setSelected)) {
                leaves = leaves.concat(item.getAllLeaves());
                return;
            }
            if (item.isEnabled()) {
                leaves.push(item);
            }
        });
        return leaves;
    },

    getIndexByValue: function (value) {
        var index = -1;
        BI.any(this.buttons, function (i, item) {
            var vs = item.getValue();
            if (item.isEnabled() && (vs === value || BI.contains(vs, value))) {
                index = i;
                return true;
            }
        });
        return index;
    },

    getNodeById: function (id) {
        var node;
        BI.any(this.buttons, function (i, item) {
            if (item.isEnabled()) {
                if (item.attr("id") === id) {
                    node = item;
                    return true;
                } else if (BI.isFunction(item.getNodeById)) {
                    if (node = item.getNodeById(id)) {
                        return true;
                    }
                }
            }
        });
        return node;
    },

    getNodeByValue: function (value) {
        var node;
        BI.any(this.buttons, function (i, item) {
            if (item.isEnabled()) {
                if (BI.isFunction(item.getNodeByValue)) {
                    if (node = item.getNodeByValue(value)) {
                        return true;
                    }
                } else if (item.attr("value") === value) {
                    node = item;
                    return true;
                }
            }
        });
        return node;
    }
});
BI.ButtonTree.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.button_tree", BI.ButtonTree);/**
 * guy
 * 异步树
 * @class BI.TreeView
 * @extends BI.Pane
 */
BI.TreeView = BI.inherit(BI.Pane, {
    _defaultConfig: function () {
        return BI.extend(BI.TreeView.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-tree",
            paras: {},
            itemsCreator: BI.emptyFn
        });
    },
    _init: function () {
        BI.TreeView.superclass._init.apply(this, arguments);
        var o = this.options;
        this._stop = false;

        this._createTree();
        this.tip = BI.createWidget({
            type: "bi.loading_bar",
            invisible: true,
            handler: BI.bind(this._loadMore, this)
        });
        BI.createWidget({
            type: "bi.vertical",
            scrollable: true,
            scrolly: false,
            element: this,
            items: [this.tip]
        });
        if(BI.isNotNull(o.value)){
            this.setSelectedValue(o.value);
        }
        if (BI.isIE9Below()) {
            this.element.addClass("hack");
        }
    },

    _createTree: function () {
        this.id = "bi-tree" + BI.UUID();
        if (this.nodes) {
            this.nodes.destroy();
        }
        if (this.tree) {
            this.tree.destroy();
        }
        this.tree = BI.createWidget({
            type: "bi.layout",
            element: "<ul id='" + this.id + "' class='ztree'></ul>"
        });
        BI.createWidget({
            type: "bi.default",
            element: this.element,
            items: [this.tree]
        });
    },

    // 选择节点触发方法
    _selectTreeNode: function (treeId, treeNode) {
        this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.CLICK, treeNode, this);
        this.fireEvent(BI.TreeView.EVENT_CHANGE, treeNode, this);
    },

    // 配置属性
    _configSetting: function () {
        var paras = this.options.paras;
        var self = this;
        var setting = {
            async: {
                enable: true,
                url: getUrl,
                autoParam: ["id", "name"],
                otherParam: BI.cjkEncodeDO(paras)
            },
            check: {
                enable: true
            },
            data: {
                key: {
                    title: "title",
                    name: "text"
                },
                simpleData: {
                    enable: true
                }
            },
            view: {
                showIcon: false,
                expandSpeed: "",
                nameIsHTML: true,
                dblClickExpand: false
            },
            callback: {
                beforeExpand: beforeExpand,
                onAsyncSuccess: onAsyncSuccess,
                onAsyncError: onAsyncError,
                beforeCheck: beforeCheck,
                onCheck: onCheck,
                onExpand: onExpand,
                onCollapse: onCollapse,
                onClick: onClick
            }
        };
        var className = "dark", perTime = 100;

        function onClick (event, treeId, treeNode) {
            self.nodes.checkNode(treeNode, !treeNode.checked, true, true);
        }

        function getUrl (treeId, treeNode) {
            var parentNode = self._getParentValues(treeNode);
            treeNode.times = treeNode.times || 1;
            var param = "id=" + treeNode.id
                + "&times=" + (treeNode.times++)
                + "&parentValues= " + window.encodeURIComponent(BI.jsonEncode(parentNode))
                + "&checkState=" + window.encodeURIComponent(BI.jsonEncode(treeNode.getCheckStatus()));

            return "&" + param;
        }

        function beforeExpand (treeId, treeNode) {
            if (!treeNode.isAjaxing) {
                if (!treeNode.children) {
                    treeNode.times = 1;
                    ajaxGetNodes(treeNode, "refresh");
                }
                return true;
            }
            BI.Msg.toast("Please Wait。", "warning");
            return false;

        }

        function onAsyncSuccess (event, treeId, treeNode, msg) {
            treeNode.halfCheck = false;
            if (!msg || msg.length === 0 || /^<html>[\s,\S]*<\/html>$/gi.test(msg) || self._stop) {
                return;
            }
            var zTree = self.nodes;
            var totalCount = treeNode.count || 0;

            // 尝试去获取下一组节点，若获取值为空数组，表示获取完成
            // TODO by GUY
            if (treeNode.children.length > totalCount) {
                treeNode.count = treeNode.children.length;
                BI.delay(function () {
                    ajaxGetNodes(treeNode);
                }, perTime);
            } else {
                // treeNode.icon = "";
                zTree.updateNode(treeNode);
                zTree.selectNode(treeNode.children[0]);
                // className = (className === "dark" ? "":"dark");
            }
        }

        function onAsyncError (event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
            var zTree = self.nodes;
            BI.Msg.toast("Error!", "warning");
            // treeNode.icon = "";
            // zTree.updateNode(treeNode);
        }

        function ajaxGetNodes (treeNode, reloadType) {
            var zTree = self.nodes;
            if (reloadType == "refresh") {
                zTree.updateNode(treeNode);
            }
            zTree.reAsyncChildNodes(treeNode, reloadType, true);
        }

        function beforeCheck (treeId, treeNode) {
            treeNode.halfCheck = false;
            if (treeNode.checked === true) {
                // 将展开的节点halfCheck设为false，解决展开节点存在halfCheck=true的情况 guy
                // 所有的半选状态都需要取消halfCheck=true的情况
                function track (children) {
                    BI.each(children, function (i, ch) {
                        if (ch.halfCheck === true) {
                            ch.halfCheck = false;
                            track(ch.children);
                        }
                    });
                }

                track(treeNode.children);
                var treeObj = self.nodes;
                var nodes = treeObj.getSelectedNodes();
                $.each(nodes, function (index, node) {
                    node.halfCheck = false;
                });
            }
        }

        function onCheck (event, treeId, treeNode) {
            self._selectTreeNode(treeId, treeNode);
        }

        function onExpand (event, treeId, treeNode) {
            treeNode.halfCheck = false;
        }

        function onCollapse (event, treeId, treeNode) {
        }

        return setting;
    },

    _getParentValues: function (treeNode) {
        if (!treeNode.getParentNode()) {
            return [];
        }
        var parentNode = treeNode.getParentNode();
        var result = this._getParentValues(parentNode);
        result = result.concat([this._getNodeValue(parentNode)]);
        return result;
    },

    _getNodeValue: function (node) {
        // 去除标红
        return node.value == null ? node.text.replace(/<[^>]+>/g, "").replaceAll("&nbsp;", " ") : node.value;
    },

    // 获取半选框值
    _getHalfSelectedValues: function (map, node) {
        var self = this;
        var checkState = node.getCheckStatus();
        // 将未选的去掉
        if (checkState.checked === false && checkState.half === false) {
            return;
        }
        // 如果节点已展开,并且是半选
        if (BI.isNotEmptyArray(node.children) && checkState.half === true) {
            var children = node.children;
            BI.each(children, function (i, ch) {
                self._getHalfSelectedValues(map, ch);
            });
            return;
        }
        var parent = node.parentValues || self._getParentValues(node);
        var path = parent.concat(this._getNodeValue(node));
        if (BI.isNotEmptyArray(node.children) || checkState.half === false) {
            this._buildTree(map, path);
            return;
        }
        var storeValues = BI.deepClone(this.options.paras.selectedValues);
        var treeNode = this._getTree(storeValues, path);
        this._addTreeNode(map, parent, this._getNodeValue(node), treeNode);
    },

    _getTree: function (map, values) {
        var cur = map;
        BI.any(values, function (i, value) {
            if (cur[value] == null) {
                return true;
            }
            cur = cur[value];
        });
        return cur;
    },

    _addTreeNode: function (map, values, key, value) {
        var cur = map;
        BI.each(values, function (i, value) {
            if (cur[value] == null) {
                cur[value] = {};
            }
            cur = cur[value];
        });
        cur[key] = value;
    },

    // 构造树节点
    _buildTree: function (map, values) {
        var cur = map;
        BI.each(values, function (i, value) {
            if (cur[value] == null) {
                cur[value] = {};
            }
            cur = cur[value];
        });
    },

    // 获取选中的值
    _getSelectedValues: function () {
        var self = this;
        var hashMap = {};
        var rootNoots = this.nodes.getNodes();
        track(rootNoots);
        function track (nodes) {
            BI.each(nodes, function (i, node) {
                var checkState = node.getCheckStatus();
                if (checkState.checked === true || checkState.half === true) {
                    if (checkState.half === true) {
                        self._getHalfSelectedValues(hashMap, node);
                    } else {
                        var parentValues = node.parentValues || self._getParentValues(node);
                        var values = parentValues.concat([self._getNodeValue(node)]);
                        self._buildTree(hashMap, values);
                    }
                }
            });
        }

        return hashMap;
    },

    // 处理节点
    _dealWidthNodes: function (nodes) {
        var self = this, o = this.options;
        var ns = BI.Tree.arrayFormat(nodes);
        BI.each(ns, function (i, n) {
            n.title = n.title || n.text || n.value;
            // 处理标红
            if (BI.isKey(o.paras.keyword)) {
                n.text = $("<div>").__textKeywordMarked__(n.text, o.paras.keyword, n.py).html();
            } else {
                n.text = (n.text + "").replaceAll(" ", "&nbsp;");
            }
        });
        return nodes;
    },

    _loadMore: function () {
        var self = this, o = this.options;
        this.tip.setLoading();
        var op = BI.extend({}, o.paras, {
            times: ++this.times
        });
        o.itemsCreator(op, function (res) {
            if (self._stop === true) {
                return;
            }
            var hasNext = !!res.hasNext, nodes = res.items || [];

            if (!hasNext) {
                self.tip.setEnd();
            } else {
                self.tip.setLoaded();
            }
            if (nodes.length > 0) {
                self.nodes.addNodes(null, self._dealWidthNodes(nodes));
            }
        });
    },

    // 生成树内部方法
    _initTree: function (setting) {
        var self = this, o = this.options;
        self.fireEvent(BI.Events.INIT);
        this.times = 1;
        var tree = this.tree;
        tree.empty();
        this.loading();
        this.tip.setVisible(false);
        var callback = function (nodes) {
            if (self._stop === true) {
                return;
            }
            self.nodes = $.fn.zTree.init(tree.element, setting, nodes);
        };
        var op = BI.extend({}, o.paras, {
            times: 1
        });

        o.itemsCreator(op, function (res) {
            if (self._stop === true) {
                return;
            }
            var hasNext = !!res.hasNext, nodes = res.items || [];
            if (nodes.length > 0) {
                callback(self._dealWidthNodes(nodes));
            }
            self.setTipVisible(nodes.length <= 0);
            self.loaded();
            if (!hasNext) {
                self.tip.invisible();
            } else {
                self.tip.setLoaded();
            }
            op.times === 1 && self.fireEvent(BI.Events.AFTERINIT);
        });
    },

    // 构造树结构，
    initTree: function (nodes, setting) {
        var setting = setting || {
            async: {
                enable: false
            },
            check: {
                enable: false
            },
            data: {
                key: {
                    title: "title",
                    name: "text"
                },
                simpleData: {
                    enable: true
                }
            },
            view: {
                showIcon: false,
                expandSpeed: "",
                nameIsHTML: true
            },
            callback: {}
        };
        this.nodes = $.fn.zTree.init(this.tree.element, setting, nodes);
    },

    start: function () {
        this._stop = false;
    },

    stop: function () {
        this._stop = true;
    },

    // 生成树方法
    stroke: function (config) {
        delete this.options.keyword;
        BI.extend(this.options.paras, config);
        var setting = this._configSetting();
        this._createTree();
        this.start();
        this._initTree(setting);
    },

    populate: function () {
        this.stroke.apply(this, arguments);
    },

    hasChecked: function () {
        var treeObj = this.nodes;
        return treeObj.getCheckedNodes(true).length > 0;
    },

    checkAll: function (checked) {
        function setNode (children) {
            BI.each(children, function (i, child) {
                child.halfCheck = false;
                setNode(child.children);
            });
        }

        if (!this.nodes) {
            return;
        }

        BI.each(this.nodes.getNodes(), function (i, node) {
            node.halfCheck = false;
            setNode(node.children);
        });
        this.nodes.checkAllNodes(checked);
    },

    expandAll: function (flag) {
        this.nodes && this.nodes.expandAll(flag);
    },

    // 设置树节点的状态
    setValue: function (value, param) {
        this.checkAll(false);
        this.updateValue(value, param);
        this.refresh();
    },

    setSelectedValue: function (value) {
        this.options.paras.selectedValues = BI.deepClone(value || {});
    },

    updateValue: function (values, param) {
        if (!this.nodes) {
            return;
        }
        param || (param = "value");
        var treeObj = this.nodes;
        BI.each(values, function (v, op) {
            var nodes = treeObj.getNodesByParam(param, v, null);
            BI.each(nodes, function (j, node) {
                BI.extend(node, {checked: true}, op);
                treeObj.updateNode(node);
            });
        });
    },

    refresh: function () {
        this.nodes && this.nodes.refresh();
    },

    getValue: function () {
        if (!this.nodes) {
            return null;
        }
        return this._getSelectedValues();
    },

    destroyed: function () {
        this.stop();
        this.nodes && this.nodes.destroy();
    }
});
BI.extend(BI.TreeView, {
    REQ_TYPE_INIT_DATA: 1,
    REQ_TYPE_ADJUST_DATA: 2,
    REQ_TYPE_SELECT_DATA: 3,
    REQ_TYPE_GET_SELECTED_DATA: 4
});

BI.TreeView.EVENT_CHANGE = "EVENT_CHANGE";
BI.TreeView.EVENT_INIT = BI.Events.INIT;
BI.TreeView.EVENT_AFTERINIT = BI.Events.AFTERINIT;

BI.shortcut("bi.tree_view", BI.TreeView);/**
 * guy
 * 同步树
 * @class BI.AsyncTree
 * @extends BI.TreeView
 */
BI.AsyncTree = BI.inherit(BI.TreeView, {
    _defaultConfig: function () {
        return BI.extend(BI.AsyncTree.superclass._defaultConfig.apply(this, arguments), {});
    },
    _init: function () {
        BI.AsyncTree.superclass._init.apply(this, arguments);
    },

    // 配置属性
    _configSetting: function () {
        var paras = this.options.paras;
        var self = this;
        var setting = {
            async: {
                enable: false,
                otherParam: BI.cjkEncodeDO(paras)
            },
            check: {
                enable: true
            },
            data: {
                key: {
                    title: "title",
                    name: "text"
                },
                simpleData: {
                    enable: true
                }
            },
            view: {
                showIcon: false,
                expandSpeed: "",
                nameIsHTML: true,
                dblClickExpand: false
            },
            callback: {
                beforeCheck: beforeCheck,
                onCheck: onCheck,
                beforeExpand: beforeExpand,
                onExpand: onExpand,
                onCollapse: onCollapse,
                onClick: onClick
            }
        };

        function onClick (event, treeId, treeNode) {
            var zTree = $.fn.zTree.getZTreeObj(treeId);
            zTree.checkNode(treeNode, !treeNode.checked, true, true);
        }

        function beforeCheck (treeId, treeNode) {
            treeNode.halfCheck = false;
            if (treeNode.checked === true) {
                // 将展开的节点halfCheck设为false，解决展开节点存在halfCheck=true的情况 guy
                // 所有的半选状态都需要取消halfCheck=true的情况
                function track (children) {
                    BI.each(children, function (i, ch) {
                        if (ch.halfCheck === true) {
                            ch.halfCheck = false;
                            track(ch.children);
                        }
                    });
                }

                track(treeNode.children);

                var treeObj = $.fn.zTree.getZTreeObj(treeId);
                var nodes = treeObj.getSelectedNodes();
                BI.each(nodes, function (index, node) {
                    node.halfCheck = false;
                });
            }
        }

        function beforeExpand (treeId, treeNode) {
            self._beforeExpandNode(treeId, treeNode);
        }

        function onCheck (event, treeId, treeNode) {
            self._selectTreeNode(treeId, treeNode);
        }

        function onExpand (event, treeId, treeNode) {
            treeNode.halfCheck = false;
        }

        function onCollapse (event, treeId, treeNode) {
            treeNode.halfCheck = false;
        }

        return setting;
    },

    _selectTreeNode: function (treeId, treeNode) {
        var self = this, o = this.options;
        var parentValues = BI.deepClone(treeNode.parentValues || self._getParentValues(treeNode));
        var name = this._getNodeValue(treeNode);
        //        var values = parentValues.concat([name]);
        if (treeNode.checked === true) {
        } else {
            var tNode = treeNode;
            var pNode = this._getTree(this.options.paras.selectedValues, parentValues);
            if (BI.isNotNull(pNode[name])) {
                delete pNode[name];
            }
            while (tNode != null && BI.isEmpty(pNode)) {
                parentValues = parentValues.slice(0, parentValues.length - 1);
                tNode = tNode.getParentNode();
                if (tNode != null) {
                    pNode = this._getTree(this.options.paras.selectedValues, parentValues);
                    name = this._getNodeValue(tNode);
                    delete pNode[name];
                }
            }
        }
        BI.AsyncTree.superclass._selectTreeNode.apply(self, arguments);
    },

    // 展开节点
    _beforeExpandNode: function (treeId, treeNode) {
        var self = this, o = this.options;
        var parentValues = treeNode.parentValues || self._getParentValues(treeNode);
        var op = BI.extend({}, o.paras, {
            id: treeNode.id,
            times: 1,
            parentValues: parentValues.concat(this._getNodeValue(treeNode)),
            checkState: treeNode.getCheckStatus()
        });
        var complete = function (d) {
            var nodes = d.items || [];
            if (nodes.length > 0) {
                callback(self._dealWidthNodes(nodes), !!d.hasNext);
            }
        };
        var times = 1;

        function callback (nodes, hasNext) {
            self.nodes.addNodes(treeNode, nodes);

            if (hasNext === true) {
                BI.delay(function () {
                    times++;
                    op.times = times;
                    o.itemsCreator(op, complete);
                }, 100);
            }
        }

        if (!treeNode.children) {
            setTimeout(function () {
                o.itemsCreator(op, complete);
            }, 17);
        }
    },

    _join: function (valueA, valueB) {
        var self = this;
        var map = {};
        track([], valueA, valueB);
        track([], valueB, valueA);
        function track (parent, node, compare) {
            BI.each(node, function (n, item) {
                if (BI.isNull(compare[n])) {
                    self._addTreeNode(map, parent, n, item);
                } else if (BI.isEmpty(compare[n])) {
                    self._addTreeNode(map, parent, n, {});
                } else {
                    track(parent.concat([n]), node[n], compare[n]);
                }
            });
        }

        return map;
    },

    hasChecked: function () {
        return !BI.isEmpty(this.options.paras.selectedValues) || BI.AsyncTree.superclass.hasChecked.apply(this, arguments);
    },

    getValue: function () {
        if (!this.nodes) {
            return {};
        }
        var checkedValues = this._getSelectedValues();
        if (BI.isEmpty(checkedValues)) {
            return BI.deepClone(this.options.paras.selectedValues);
        }
        if (BI.isEmpty(this.options.paras.selectedValues)) {
            return checkedValues;
        }
        return this._join(checkedValues, this.options.paras.selectedValues);
    },

    // 生成树方法
    stroke: function (config) {
        delete this.options.keyword;
        BI.extend(this.options.paras, config);
        var setting = this._configSetting();
        this._initTree(setting);
    }
});

BI.shortcut("bi.async_tree", BI.AsyncTree);/**
 * guy
 * 局部树，两个请求树， 第一个请求构造树，第二个请求获取节点
 * @class BI.PartTree
 * @extends BI.AsyncTree
 */
BI.PartTree = BI.inherit(BI.AsyncTree, {
    _defaultConfig: function () {
        return BI.extend(BI.PartTree.superclass._defaultConfig.apply(this, arguments), {});
    },

    _init: function () {
        BI.PartTree.superclass._init.apply(this, arguments);
    },

    _loadMore: function () {
        var self = this, o = this.options;
        var op = BI.extend({}, o.paras, {
            type: BI.TreeView.REQ_TYPE_INIT_DATA,
            times: ++this.times
        });
        this.tip.setLoading();
        o.itemsCreator(op, function (d) {
            var hasNext = !!d.hasNext, nodes = d.items || [];
            o.paras.lastSearchValue = d.lastSearchValue;
            if (self._stop === true) {
                return;
            }
            if (!hasNext) {
                self.tip.setEnd();
            } else {
                self.tip.setLoaded();
            }
            if (nodes.length > 0) {
                self.nodes.addNodes(null, self._dealWidthNodes(nodes));
            }
        });
    },

    _selectTreeNode: function (treeId, treeNode) {
        var self = this, o = this.options;
        var parentValues = BI.deepClone(treeNode.parentValues || self._getParentValues(treeNode));
        var name = this._getNodeValue(treeNode);
        if (treeNode.checked === true) {
            BI.AsyncTree.superclass._selectTreeNode.apply(self, arguments);
        } else {
            // 如果选中的值中不存在该值不处理
            var t = this.options.paras.selectedValues;
            var p = parentValues.concat(name);
            for (var i = 0, len = p.length; i < len; i++) {
                t = t[p[i]];
                if (t == null) {
                    return;
                }
                if (BI.isEmpty(t)) {
                    break;
                }
            }
            o.itemsCreator(BI.extend({}, o.paras, {
                type: BI.TreeView.REQ_TYPE_SELECT_DATA,
                notSelectedValue: name,
                parentValues: parentValues
            }), function (new_values) {
                self.options.paras.selectedValues = new_values;
                BI.AsyncTree.superclass._selectTreeNode.apply(self, arguments);
            });
        }
    },

    _getSelectedValues: function () {
        var self = this;
        var hashMap = {};
        var rootNoots = this.nodes.getNodes();
        track(rootNoots);
        function track (nodes) {
            BI.each(nodes, function (i, node) {
                var checkState = node.getCheckStatus();
                if (checkState.checked === false) {
                    return true;
                }
                var parentValues = node.parentValues || self._getParentValues(node);
                // 把文字中的html去掉，其实就是把文字颜色去掉
                var values = parentValues.concat([self._getNodeValue(node)]);
                self._buildTree(hashMap, values);
                //                if(checkState.checked === true && checkState.half === false && nodes[i].flag === true){
                //                    continue;
                //                }
                if (BI.isNotEmptyArray(node.children)) {
                    track(node.children);
                    return true;
                }
                if (checkState.half === true) {
                    self._getHalfSelectedValues(hashMap, node);
                }
            });
        }

        return hashMap;
    },

    _initTree: function (setting, keyword) {
        var self = this, o = this.options;
        this.times = 1;
        var tree = this.tree;
        tree.empty();
        self.tip.setVisible(false);
        this.loading();
        var op = BI.extend({}, o.paras, {
            type: BI.TreeView.REQ_TYPE_INIT_DATA,
            times: this.times
        });
        var complete = function (d) {
            if (self._stop === true || keyword != o.paras.keyword) {
                return;
            }
            var hasNext = !!d.hasNext, nodes = d.items || [];
            o.paras.lastSearchValue = d.lastSearchValue;
            if (nodes.length > 0) {
                callback(self._dealWidthNodes(nodes));
            }
            self.setTipVisible(nodes.length <= 0);
            self.loaded();
            if (!hasNext) {
                self.tip.invisible();
            } else {
                self.tip.setLoaded();
            }
            self.fireEvent(BI.Events.AFTERINIT);
        };

        function callback (nodes) {
            if (self._stop === true) {
                return;
            }
            self.nodes = $.fn.zTree.init(tree.element, setting, nodes);
        }

        BI.delay(function () {
            o.itemsCreator(op, complete);
        }, 100);
    },

    getValue: function () {
        var o = this.options;
        var result = BI.PartTree.superclass.getValue.apply(this, arguments);
        o.itemsCreator({
            type: BI.TreeView.REQ_TYPE_ADJUST_DATA,
            selectedValues: result
        }, function (res) {
            result = res;
        });
        return result;
    },

    // 生成树方法
    stroke: function (config) {
        var o = this.options;
        delete o.paras.keyword;
        BI.extend(o.paras, config);
        delete o.paras.lastSearchValue;
        var setting = this._configSetting();
        this._initTree(setting, o.paras.keyword);
    }
});

BI.shortcut("bi.part_tree", BI.PartTree);BI.Resizers = new BI.ResizeController();
BI.Layers = new BI.LayerController();
BI.Maskers = new BI.MaskersController();
BI.Bubbles = new BI.BubblesController();
BI.Tooltips = new BI.TooltipsController();
BI.Popovers = new BI.PopoverController();
BI.Broadcasts = new BI.BroadcastController();
BI.StyleLoaders = new BI.StyleLoaderManager();/**
 * canvas绘图
 *
 * Created by GUY on 2015/11/18.
 * @class BI.Canvas
 * @extends BI.Widget
 */
BI.Canvas = BI.inherit(BI.Widget, {

    _defaultConfig: function () {
        return BI.extend(BI.Canvas.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-canvas"
        });
    },

    _init: function () {
        BI.Canvas.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        var canvas = document.createElement("canvas");
        if (!document.createElement("canvas").getContext) {
            canvas = window.G_vmlCanvasManager.initElement(canvas);
        }
        this.element.append(canvas);
        canvas.width = o.width;
        canvas.height = o.height;
        $(canvas).width("100%");
        $(canvas).height("100%");
        this.canvas = canvas;
        this._queue = [];
    },

    mounted: function () {
        this.stroke();
    },

    _getContext: function () {
        if (!this.ctx) {
            this.ctx = this.canvas.getContext("2d");
        }
        return this.ctx;
    },

    _attr: function (key, value) {
        var self = this;
        if (BI.isNull(key)) {
            return;
        }
        if (BI.isObject(key)) {
            BI.each(key, function (k, v) {
                self._queue.push({ k: k, v: v });
            });
            return;
        }
        this._queue.push({ k: key, v: value });
    },

    _line: function (x0, y0) {
        var self = this;
        var args = [].slice.call(arguments, 2);
        if (BI.isOdd(args.length)) {
            this._attr(BI.last(args));
            args = BI.initial(args);
        }
        this._attr("moveTo", [x0, y0]);
        var odd = BI.filter(args, function (i) {
            return i % 2 === 0;
        });
        var even = BI.filter(args, function (i) {
            return i % 2 !== 0;
        });
        args = BI.zip(odd, even);
        BI.each(args, function (i, point) {
            self._attr("lineTo", point);
        });
    },

    line: function (x0, y0, x1, y1) {
        this._line.apply(this, arguments);
        this._attr("stroke", []);
    },

    rect: function (x, y, w, h, color) {
        this._attr("fillStyle", color);
        this._attr("fillRect", [x, y, w, h]);
    },

    circle: function (x, y, radius, color) {
        this._attr({
            fillStyle: color,
            beginPath: [],
            arc: [x, y, radius, 0, Math.PI * 2, true],
            closePath: [],
            fill: []
        });
    },

    hollow: function () {
        this._attr("beginPath", []);
        this._line.apply(this, arguments);
        this._attr("closePath", []);
        this._attr("stroke", []);
    },

    solid: function () {
        this.hollow.apply(this, arguments);
        this._attr("fill", []);
    },

    gradient: function (x0, y0, x1, y1, start, end) {
        var grd = this._getContext().createLinearGradient(x0, y0, x1, y1);
        grd.addColorStop(0, start);
        grd.addColorStop(1, end);
        return grd;
    },

    reset: function () {
        this._getContext().clearRect(0, 0, this.canvas.width, this.canvas.height);
    },

    stroke: function () {
        var ctx = this._getContext();
        if(!ctx) {
            return false;
        }
        BI.each(this._queue, function (i, q) {
            if (BI.isFunction(ctx[q.k])) {
                ctx[q.k].apply(ctx, q.v);
            } else {
                ctx[q.k] = q.v;
            }
        });
        this._queue = [];
    }
});
BI.shortcut("bi.canvas", BI.Canvas);/**
 * CollectionView
 *
 * Created by GUY on 2016/1/15.
 * @class BI.CollectionView
 * @extends BI.Widget
 */
BI.CollectionView = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.CollectionView.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-collection",
            // width: 400, //必设
            // height: 300, //必设
            overflowX: true,
            overflowY: true,
            cellSizeAndPositionGetter: BI.emptyFn,
            horizontalOverscanSize: 0,
            verticalOverscanSize: 0,
            scrollLeft: 0,
            scrollTop: 0,
            items: []
        });
    },

    _init: function () {
        BI.CollectionView.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.renderedCells = [];
        this.renderedKeys = [];
        this.renderRange = {};
        this._scrollLock = false;
        this._debounceRelease = BI.debounce(function () {
            self._scrollLock = false;
        }, 1000 / 60);
        this.container = BI.createWidget({
            type: "bi.absolute"
        });
        this.element.scroll(function () {
            if (self._scrollLock === true) {
                return;
            }
            o.scrollLeft = self.element.scrollLeft();
            o.scrollTop = self.element.scrollTop();
            self._calculateChildrenToRender();
            self.fireEvent(BI.CollectionView.EVENT_SCROLL, {
                scrollLeft: o.scrollLeft,
                scrollTop: o.scrollTop
            });
        });
        BI.createWidget({
            type: "bi.vertical",
            element: this,
            scrollable: o.overflowX === true && o.overflowY === true,
            scrolly: o.overflowX === false && o.overflowY === true,
            scrollx: o.overflowX === true && o.overflowY === false,
            items: [this.container]
        });
        if (o.items.length > 0) {
            this._calculateSizeAndPositionData();
            this._populate();
        }
        if (o.scrollLeft !== 0 || o.scrollTop !== 0) {
            BI.nextTick(function () {
                self.element.scrollTop(o.scrollTop);
                self.element.scrollLeft(o.scrollLeft);
            });
        }
    },

    _calculateSizeAndPositionData: function () {
        var o = this.options;
        var cellMetadata = [];
        var sectionManager = new BI.SectionManager();
        var height = 0;
        var width = 0;

        for (var index = 0, len = o.items.length; index < len; index++) {
            var cellMetadatum = o.cellSizeAndPositionGetter(index);

            if (cellMetadatum.height == null || isNaN(cellMetadatum.height) ||
                cellMetadatum.width == null || isNaN(cellMetadatum.width) ||
                cellMetadatum.x == null || isNaN(cellMetadatum.x) ||
                cellMetadatum.y == null || isNaN(cellMetadatum.y)) {
                throw Error();
            }

            height = Math.max(height, cellMetadatum.y + cellMetadatum.height);
            width = Math.max(width, cellMetadatum.x + cellMetadatum.width);

            cellMetadatum.index = index;
            cellMetadata[index] = cellMetadatum;
            sectionManager.registerCell(cellMetadatum, index);
        }

        this._cellMetadata = cellMetadata;
        this._sectionManager = sectionManager;
        this._height = height;
        this._width = width;
    },

    _cellRenderers: function (height, width, x, y) {
        this._lastRenderedCellIndices = this._sectionManager.getCellIndices(height, width, x, y);
        return this._cellGroupRenderer();
    },

    _cellGroupRenderer: function () {
        var self = this, o = this.options;
        var rendered = [];
        BI.each(this._lastRenderedCellIndices, function (i, index) {
            var cellMetadata = self._sectionManager.getCellMetadata(index);
            rendered.push(cellMetadata);
        });
        return rendered;
    },

    _calculateChildrenToRender: function () {
        var self = this, o = this.options;
        var scrollLeft = BI.clamp(o.scrollLeft, 0, this._getMaxScrollLeft());
        var scrollTop = BI.clamp(o.scrollTop, 0, this._getMaxScrollTop());
        var left = Math.max(0, scrollLeft - o.horizontalOverscanSize);
        var top = Math.max(0, scrollTop - o.verticalOverscanSize);
        var right = Math.min(this._width, scrollLeft + o.width + o.horizontalOverscanSize);
        var bottom = Math.min(this._height, scrollTop + o.height + o.verticalOverscanSize);
        if (right > 0 && bottom > 0) {
            // 如果滚动的区间并没有超出渲染的范围
            if (top >= this.renderRange.minY && bottom <= this.renderRange.maxY && left >= this.renderRange.minX && right <= this.renderRange.maxX) {
                return;
            }
            var childrenToDisplay = this._cellRenderers(bottom - top, right - left, left, top);
            var renderedCells = [], renderedKeys = {}, renderedWidgets = {};
            // 存储所有的left和top
            var lefts = {}, tops = {};
            for (var i = 0, len = childrenToDisplay.length; i < len; i++) {
                var datum = childrenToDisplay[i];
                lefts[datum.x] = datum.x;
                lefts[datum.x + datum.width] = datum.x + datum.width;
                tops[datum.y] = datum.y;
                tops[datum.y + datum.height] = datum.y + datum.height;
            }
            lefts = BI.toArray(lefts);
            tops = BI.toArray(tops);
            var leftMap = BI.invert(lefts);
            var topMap = BI.invert(tops);
            // 存储上下左右四个边界
            var leftBorder = {}, rightBorder = {}, topBorder = {}, bottomBorder = {};
            var assertMinBorder = function (border, offset) {
                if (border[offset] == null) {
                    border[offset] = Number.MAX_VALUE;
                }
            };
            var assertMaxBorder = function (border, offset) {
                if (border[offset] == null) {
                    border[offset] = 0;
                }
            };
            for (var i = 0, len = childrenToDisplay.length; i < len; i++) {
                var datum = childrenToDisplay[i];
                var index = this.renderedKeys[datum.index] && this.renderedKeys[datum.index][1];
                var child;
                if (index >= 0) {
                    if (datum.width !== this.renderedCells[index]._width) {
                        this.renderedCells[index]._width = datum.width;
                        this.renderedCells[index].el.setWidth(datum.width);
                    }
                    if (datum.height !== this.renderedCells[index]._height) {
                        this.renderedCells[index]._height = datum.height;
                        this.renderedCells[index].el.setHeight(datum.height);
                    }
                    if (this.renderedCells[index]._left !== datum.x) {
                        this.renderedCells[index].el.element.css("left", datum.x + "px");
                    }
                    if (this.renderedCells[index]._top !== datum.y) {
                        this.renderedCells[index].el.element.css("top", datum.y + "px");
                    }
                    renderedCells.push(child = this.renderedCells[index]);
                } else {
                    child = BI.createWidget(BI.extend({
                        type: "bi.label",
                        width: datum.width,
                        height: datum.height
                    }, o.items[datum.index], {
                        cls: (o.items[datum.index].cls || "") + " container-cell" + (datum.y === 0 ? " first-row" : "") + (datum.x === 0 ? " first-col" : ""),
                        _left: datum.x,
                        _top: datum.y
                    }));
                    renderedCells.push({
                        el: child,
                        left: datum.x,
                        top: datum.y,
                        _left: datum.x,
                        _top: datum.y,
                        _width: datum.width,
                        _height: datum.height
                    });
                }
                var startTopIndex = topMap[datum.y] | 0;
                var endTopIndex = topMap[datum.y + datum.height] | 0;
                for (var k = startTopIndex; k <= endTopIndex; k++) {
                    var t = tops[k];
                    assertMinBorder(leftBorder, t);
                    assertMaxBorder(rightBorder, t);
                    leftBorder[t] = Math.min(leftBorder[t], datum.x);
                    rightBorder[t] = Math.max(rightBorder[t], datum.x + datum.width);
                }
                var startLeftIndex = leftMap[datum.x] | 0;
                var endLeftIndex = leftMap[datum.x + datum.width] | 0;
                for (var k = startLeftIndex; k <= endLeftIndex; k++) {
                    var l = lefts[k];
                    assertMinBorder(topBorder, l);
                    assertMaxBorder(bottomBorder, l);
                    topBorder[l] = Math.min(topBorder[l], datum.y);
                    bottomBorder[l] = Math.max(bottomBorder[l], datum.y + datum.height);
                }

                renderedKeys[datum.index] = [datum.index, i];
                renderedWidgets[i] = child;
            }
            // 已存在的， 需要添加的和需要删除的
            var existSet = {}, addSet = {}, deleteArray = [];
            BI.each(renderedKeys, function (i, key) {
                if (self.renderedKeys[i]) {
                    existSet[i] = key;
                } else {
                    addSet[i] = key;
                }
            });
            BI.each(this.renderedKeys, function (i, key) {
                if (existSet[i]) {
                    return;
                }
                if (addSet[i]) {
                    return;
                }
                deleteArray.push(key[1]);
            });
            BI.each(deleteArray, function (i, index) {
                // 性能优化，不调用destroy方法防止触发destroy事件
                self.renderedCells[index].el._destroy();
            });
            var addedItems = [];
            BI.each(addSet, function (index, key) {
                addedItems.push(renderedCells[key[1]]);
            });
            this.container.addItems(addedItems);
            // 拦截父子级关系
            this.container._children = renderedWidgets;
            this.container.attr("items", renderedCells);
            this.renderedCells = renderedCells;
            this.renderedKeys = renderedKeys;

            // Todo 左右比较特殊
            var minX = BI.min(leftBorder);
            var maxX = BI.max(rightBorder);

            var minY = BI.max(topBorder);
            var maxY = BI.min(bottomBorder);

            this.renderRange = {minX: minX, minY: minY, maxX: maxX, maxY: maxY};
        }
    },

    _getMaxScrollLeft: function () {
        return Math.max(0, this._width - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
    },

    _getMaxScrollTop: function () {
        return Math.max(0, this._height - this.options.height + (this.options.overflowY ? BI.DOM.getScrollWidth() : 0));
    },

    _populate: function (items) {
        var o = this.options;
        this._reRange();
        if (items && items !== this.options.items) {
            this.options.items = items;
            this._calculateSizeAndPositionData();
        }
        if (o.items.length > 0) {
            this.container.setWidth(this._width);
            this.container.setHeight(this._height);

            this._calculateChildrenToRender();
            // 元素未挂载时不能设置scrollTop
            try {
                this.element.scrollTop(o.scrollTop);
                this.element.scrollLeft(o.scrollLeft);
            } catch (e) {
            }
        }
    },

    setScrollLeft: function (scrollLeft) {
        if (this.options.scrollLeft === scrollLeft) {
            return;
        }
        this._scrollLock = true;
        this.options.scrollLeft = BI.clamp(scrollLeft || 0, 0, this._getMaxScrollLeft());
        this._debounceRelease();
        this._calculateChildrenToRender();
        this.element.scrollLeft(this.options.scrollLeft);
    },

    setScrollTop: function (scrollTop) {
        if (this.options.scrollTop === scrollTop) {
            return;
        }
        this._scrollLock = true;
        this.options.scrollTop = BI.clamp(scrollTop || 0, 0, this._getMaxScrollTop());
        this._debounceRelease();
        this._calculateChildrenToRender();
        this.element.scrollTop(this.options.scrollTop);
    },

    setOverflowX: function (b) {
        var self = this;
        if (this.options.overflowX !== !!b) {
            this.options.overflowX = !!b;
            BI.nextTick(function () {
                self.element.css({overflowX: b ? "auto" : "hidden"});
            });
        }
    },

    setOverflowY: function (b) {
        var self = this;
        if (this.options.overflowY !== !!b) {
            this.options.overflowY = !!b;
            BI.nextTick(function () {
                self.element.css({overflowY: b ? "auto" : "hidden"});
            });
        }
    },

    getScrollLeft: function () {
        return this.options.scrollLeft;
    },

    getScrollTop: function () {
        return this.options.scrollTop;
    },

    getMaxScrollLeft: function () {
        return this._getMaxScrollLeft();
    },

    getMaxScrollTop: function () {
        return this._getMaxScrollTop();
    },

    // 重新计算children
    _reRange: function () {
        this.renderRange = {};
    },

    _clearChildren: function () {
        this.container._children = {};
        this.container.attr("items", []);
    },

    restore: function () {
        BI.each(this.renderedCells, function (i, cell) {
            cell.el._destroy();
        });
        this._clearChildren();
        this.renderedCells = [];
        this.renderedKeys = [];
        this.renderRange = {};
        this._scrollLock = false;
    },

    populate: function (items) {
        if (items && items !== this.options.items) {
            this.restore();
        }
        this._populate(items);
    }
});
BI.CollectionView.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.collection_view", BI.CollectionView);/**
 * @class BI.Combo
 * @extends BI.Widget
 */
BI.Combo = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        var conf = BI.Combo.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-combo",
            trigger: "click",
            toggle: true,
            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right
            container: null, // popupview放置的容器，默认为this.element
            isDefaultInit: false,
            destroyWhenHide: false,
            isNeedAdjustHeight: true, // 是否需要高度调整
            isNeedAdjustWidth: true,
            stopEvent: false,
            stopPropagation: false,
            adjustLength: 0, // 调整的距离
            adjustXOffset: 0,
            adjustYOffset: 0,
            hideChecker: BI.emptyFn,
            offsetStyle: "left", // left,right,center
            el: {},
            popup: {},
            comboClass: "bi-combo-popup",
            hoverClass: "bi-combo-hover"
        });
    },

    _init: function () {
        BI.Combo.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this._initCombo();
        this._initPullDownAction();
        this.combo.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            if (self.isEnabled() && self.isValid()) {
                if (type === BI.Events.EXPAND) {
                    self._popupView();
                }
                if (type === BI.Events.COLLAPSE) {
                    self._hideView();
                }
                if (type === BI.Events.EXPAND) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.fireEvent(BI.Combo.EVENT_EXPAND);
                }
                if (type === BI.Events.COLLAPSE) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.isViewVisible() && self.fireEvent(BI.Combo.EVENT_COLLAPSE);
                }
                if (type === BI.Events.CLICK) {
                    self.fireEvent(BI.Combo.EVENT_TRIGGER_CHANGE, obj);
                }
            }
        });

        self.element.on("mouseenter." + self.getName(), function (e) {
            if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid()) {
                self.element.addClass(o.hoverClass);
            }
        });
        self.element.on("mouseleave." + self.getName(), function (e) {
            if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid()) {
                self.element.removeClass(o.hoverClass);
            }
        });

        BI.createWidget({
            type: "bi.vertical",
            scrolly: false,
            element: this,
            items: [
                {el: this.combo}
            ]
        });
        o.isDefaultInit && (this._assertPopupView());
        BI.Resizers.add(this.getName(), BI.bind(function () {
            if (this.isViewVisible()) {
                this._hideView();
            }
        }, this));
    },

    _toggle: function () {
        this._assertPopupViewRender();
        if (this.popupView.isVisible()) {
            this._hideView();
        } else {
            if (this.isEnabled()) {
                this._popupView();
            }
        }
    },

    _initPullDownAction: function () {
        var self = this, o = this.options;
        var evs = this.options.trigger.split(",");
        var st = function (e) {
            if (o.stopEvent) {
                e.stopEvent();
            }
            if (o.stopPropagation) {
                e.stopPropagation();
            }
        };

        var enterPopup = false;

        function hide () {
            if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid() && o.toggle === true) {
                self._hideView();
                self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.combo);
                self.fireEvent(BI.Combo.EVENT_COLLAPSE);
            }
            self.popupView && self.popupView.element.off("mouseenter." + self.getName()).off("mouseleave." + self.getName());
            enterPopup = false;
        }

        BI.each(evs, function (i, ev) {
            switch (ev) {
                case "hover":
                    self.element.on("mouseenter." + self.getName(), function (e) {
                        if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid()) {
                            self._popupView();
                            self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.combo);
                            self.fireEvent(BI.Combo.EVENT_EXPAND);
                        }
                    });
                    self.element.on("mouseleave." + self.getName(), function (e) {
                        if (self.popupView) {
                            self.popupView.element.on("mouseenter." + self.getName(), function (e) {
                                enterPopup = true;
                                self.popupView.element.on("mouseleave." + self.getName(), function (e) {
                                    hide();
                                });
                                self.popupView.element.off("mouseenter." + self.getName());
                            });
                            BI.defer(function () {
                                if (!enterPopup) {
                                    hide();
                                }
                            }, 50);
                        }
                    });
                    break;
                case "click":
                    var debounce = BI.debounce(function (e) {
                        if (self.combo.element.__isMouseInBounds__(e)) {
                            if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid()) {
                                // if (!o.toggle && self.isViewVisible()) {
                                //     return;
                                // }
                                o.toggle ? self._toggle() : self._popupView();
                                if (self.isViewVisible()) {
                                    self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.combo);
                                    self.fireEvent(BI.Combo.EVENT_EXPAND);
                                } else {
                                    self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.combo);
                                    self.fireEvent(BI.Combo.EVENT_COLLAPSE);
                                }
                            }
                        }
                    }, BI.EVENT_RESPONSE_TIME, {
                        "leading": true,
                        "trailing": false
                    });
                    self.element.off(ev + "." + self.getName()).on(ev + "." + self.getName(), function (e) {
                        debounce(e);
                        st(e);
                    });
                    break;
                case "click-hover":
                    var debounce = BI.debounce(function (e) {
                        if (self.combo.element.__isMouseInBounds__(e)) {
                            if (self.isEnabled() && self.isValid() && self.combo.isEnabled() && self.combo.isValid()) {
                                // if (self.isViewVisible()) {
                                //     return;
                                // }
                                self._popupView();
                                if (self.isViewVisible()) {
                                    self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.combo);
                                    self.fireEvent(BI.Combo.EVENT_EXPAND);
                                }
                            }
                        }
                    }, BI.EVENT_RESPONSE_TIME, {
                        "leading": true,
                        "trailing": false
                    });
                    self.element.off("click." + self.getName()).on("click." + self.getName(), function (e) {
                        debounce(e);
                        st(e);
                    });
                    self.element.on("mouseleave." + self.getName(), function (e) {
                        if (self.popupView) {
                            self.popupView.element.on("mouseenter." + self.getName(), function (e) {
                                enterPopup = true;
                                self.popupView.element.on("mouseleave." + self.getName(), function (e) {
                                    hide();
                                });
                                self.popupView.element.off("mouseenter." + self.getName());
                            });
                            BI.defer(function () {
                                if (!enterPopup) {
                                    hide();
                                }
                            }, 50);
                        }
                    });
                    break;
            }
        });
    },

    _initCombo: function () {
        this.combo = BI.createWidget(this.options.el, {
            value: this.options.value
        });
    },

    _assertPopupView: function () {
        var self = this, o = this.options;
        if (this.popupView == null) {
            this.popupView = BI.createWidget(this.options.popup, {
                type: "bi.popup_view",
                value: o.value
            }, this);
            this.popupView.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                if (type === BI.Events.CLICK) {
                    self.combo.setValue(self.getValue());
                    self.fireEvent(BI.Combo.EVENT_CHANGE, value, obj);
                }
                self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            });
            this.popupView.setVisible(false);
            BI.nextTick(function () {
                self.fireEvent(BI.Combo.EVENT_AFTER_INIT);
            });
        }
    },

    _assertPopupViewRender: function () {
        this._assertPopupView();
        if (!this._rendered) {
            BI.createWidget({
                type: "bi.vertical",
                scrolly: false,
                element: this.options.container || this,
                items: [
                    {el: this.popupView}
                ]
            });
            this._rendered = true;
        }
    },

    _hideIf: function (e) {
        // if (this.element.__isMouseInBounds__(e) || (this.popupView && this.popupView.element.__isMouseInBounds__(e))) {
        //     return;
        // }
        // BI-10290 公式combo双击公式内容会收起
        if ((this.element.find(e.target).length > 0 && e.type !== "mousewheel")
            || (this.popupView && this.popupView.element.find(e.target).length > 0)
            || e.target.className === "CodeMirror-cursor" || $(e.target).closest(".CodeMirror-hints").length > 0) {// BI-9887 CodeMirror的公式弹框需要特殊处理下
            return;
        }
        var isHide = this.options.hideChecker.apply(this, [e]);
        if (isHide === false) {
            return;
        }
        this._hideView();
    },

    _hideView: function () {
        this.fireEvent(BI.Combo.EVENT_BEFORE_HIDEVIEW);
        if (this.options.destroyWhenHide === true) {
            this.popupView && this.popupView.destroy();
            this.popupView = null;
            this._rendered = false;
        } else {
            this.popupView && this.popupView.invisible();
        }
        this.element.removeClass(this.options.comboClass);

        $(document).unbind("mousedown." + this.getName()).unbind("mousewheel." + this.getName());
        this.fireEvent(BI.Combo.EVENT_AFTER_HIDEVIEW);
    },

    _popupView: function () {
        this._assertPopupViewRender();
        this.fireEvent(BI.Combo.EVENT_BEFORE_POPUPVIEW);

        this.popupView.visible();
        this.adjustWidth();
        this.adjustHeight();

        this.element.addClass(this.options.comboClass);
        $(document).unbind("mousedown." + this.getName()).unbind("mousewheel." + this.getName());
        $(document).bind("mousedown." + this.getName(), BI.bind(this._hideIf, this)).bind("mousewheel." + this.getName(), BI.bind(this._hideIf, this));
        this.fireEvent(BI.Combo.EVENT_AFTER_POPUPVIEW);
    },

    adjustWidth: function () {
        var o = this.options;
        if (!this.popupView) {
            return;
        }
        if (o.isNeedAdjustWidth === true) {
            this.resetListWidth("");
            var width = this.popupView.element.outerWidth();
            var maxW = this.element.outerWidth() || o.width;
            if (width > maxW + 80) {
                maxW = maxW + 80;
            } else if (width > maxW) {
                maxW = width;
            }
            this.resetListWidth(maxW < 100 ? 100 : maxW);
        }
    },

    adjustHeight: function () {
        var o = this.options, p = {};
        if (!this.popupView) {
            return;
        }
        var isVisible = this.popupView.isVisible();
        this.popupView.visible();
        switch (o.direction) {
            case "bottom":
            case "bottom,right":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight, ["bottom", "top", "right", "left"], o.offsetStyle);
                break;
            case "top":
            case "top,right":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight, ["top", "bottom", "right", "left"], o.offsetStyle);
                break;
            case "left":
            case "left,bottom":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength, o.adjustYOffset, o.isNeedAdjustHeight, ["left", "right", "bottom", "top"], o.offsetStyle);
                break;
            case "right":
            case "right,bottom":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength, o.adjustYOffset, o.isNeedAdjustHeight, ["right", "left", "bottom", "top"], o.offsetStyle);
                break;
            case "top,left":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight, ["top", "bottom", "left", "right"], o.offsetStyle);
                break;
            case "bottom,left":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight, ["bottom", "top", "left", "right"], o.offsetStyle);
                break;
            case "left,top":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength, o.adjustYOffset, o.isNeedAdjustHeight, ["left", "right", "top", "bottom"], o.offsetStyle);
                break;
            case "right,top":
                p = $.getComboPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength, o.adjustYOffset, o.isNeedAdjustHeight, ["right", "left", "top", "bottom"], o.offsetStyle);
                break;
            case "top,custom":
            case "custom,top":
                p = $.getTopAdaptPosition(this.combo, this.popupView, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight);
                break;
            case "custom,bottom":
            case "bottom,custom":
                p = $.getBottomAdaptPosition(this.combo, this.popupView, o.adjustYOffset || o.adjustLength, o.isNeedAdjustHeight);
                break;
            case "left,custom":
            case "custom,left":
                p = $.getLeftAdaptPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength);
                delete p.top;
                delete p.adaptHeight;
                break;
            case "custom,right":
            case "right,custom":
                p = $.getRightAdaptPosition(this.combo, this.popupView, o.adjustXOffset || o.adjustLength);
                delete p.top;
                delete p.adaptHeight;
                break;
        }

        if ("adaptHeight" in p) {
            this.resetListHeight(p["adaptHeight"]);
        }
        if ("left" in p) {
            this.popupView.element.css({
                left: p.left
            });
        }
        if ("top" in p) {
            this.popupView.element.css({
                top: p.top
            });
        }
        this.position = p;
        this.popupView.setVisible(isVisible);
    },

    resetListHeight: function (h) {
        this._assertPopupView();
        this.popupView.resetHeight && this.popupView.resetHeight(h);
    },

    resetListWidth: function (w) {
        this._assertPopupView();
        this.popupView.resetWidth && this.popupView.resetWidth(w);
    },

    populate: function (items) {
        this._assertPopupView();
        this.popupView.populate.apply(this.popupView, arguments);
        this.combo.populate.apply(this.combo, arguments);
    },

    _setEnable: function (arg) {
        BI.Combo.superclass._setEnable.apply(this, arguments);
        !arg && this.element.removeClass(this.options.hoverClass);
        !arg && this.isViewVisible() && this._hideView();
    },

    setValue: function (v) {
        this.combo.setValue(v);
        if (BI.isNull(this.popupView)) {
            this.options.popup.value = v;
        } else {
            this.popupView.setValue(v);
        }
    },

    getValue: function () {
        if (BI.isNull(this.popupView)) {
            return this.options.popup.value;
        } else {
            return this.popupView.getValue();
        }
    },

    isViewVisible: function () {
        return this.isEnabled() && this.combo.isEnabled() && !!this.popupView && this.popupView.isVisible();
    },

    showView: function () {
        if (this.isEnabled() && this.combo.isEnabled()) {
            this._popupView();
        }
    },

    hideView: function () {
        this._hideView();
    },

    getView: function () {
        return this.popupView;
    },

    getPopupPosition: function () {
        return this.position;
    },

    toggle: function () {
        this._toggle();
    },

    destroy: function () {
        $(document).unbind("mousedown." + this.getName())
            .unbind("mousewheel." + this.getName())
            .unbind("mouseenter." + this.getName())
            .unbind("mousemove." + this.getName())
            .unbind("mouseleave." + this.getName());
        BI.Resizers.remove(this.getName());
        BI.Combo.superclass.destroy.apply(this, arguments);
    }
});
BI.Combo.EVENT_TRIGGER_CHANGE = "EVENT_TRIGGER_CHANGE";
BI.Combo.EVENT_CHANGE = "EVENT_CHANGE";
BI.Combo.EVENT_EXPAND = "EVENT_EXPAND";
BI.Combo.EVENT_COLLAPSE = "EVENT_COLLAPSE";
BI.Combo.EVENT_AFTER_INIT = "EVENT_AFTER_INIT";


BI.Combo.EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
BI.Combo.EVENT_AFTER_POPUPVIEW = "EVENT_AFTER_POPUPVIEW";
BI.Combo.EVENT_BEFORE_HIDEVIEW = "EVENT_BEFORE_HIDEVIEW";
BI.Combo.EVENT_AFTER_HIDEVIEW = "EVENT_AFTER_HIDEVIEW";

BI.shortcut("bi.combo", BI.Combo);/**
 *
 * 某个可以展开的节点
 *
 * Created by GUY on 2015/9/10.
 * @class BI.Expander
 * @extends BI.Widget
 */
BI.Expander = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Expander.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-expander",
            trigger: "click",
            toggle: true,
            // direction: "bottom", //top,bottom四个方向
            isDefaultInit: false, // 是否默认初始化子节点
            el: {},
            popup: {},
            expanderClass: "bi-expander-popup",
            hoverClass: "bi-expander-hover"
        });
    },

    _init: function () {
        BI.Expander.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this._expanded = !!o.el.open;
        this._initExpander();
        this._initPullDownAction();
        this.expander.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            if (self.isEnabled() && self.isValid()) {
                if (type === BI.Events.EXPAND) {
                    self._popupView();
                }
                if (type === BI.Events.COLLAPSE) {
                    self._hideView();
                }
                if (type === BI.Events.EXPAND) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.fireEvent(BI.Expander.EVENT_EXPAND);
                }
                if (type === BI.Events.COLLAPSE) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.isViewVisible() && self.fireEvent(BI.Expander.EVENT_COLLAPSE);
                }
                if (type === BI.Events.CLICK) {
                    self.fireEvent(BI.Expander.EVENT_TRIGGER_CHANGE, value, obj);
                }
            }
        });

        this.element.hover(function () {
            if (self.isEnabled() && self.isValid() && self.expander.isEnabled() && self.expander.isValid()) {
                self.element.addClass(o.hoverClass);
            }
        }, function () {
            if (self.isEnabled() && self.isValid() && self.expander.isEnabled() && self.expander.isValid()) {
                self.element.removeClass(o.hoverClass);
            }
        });
        BI.createWidget({
            type: "bi.vertical",
            scrolly: false,
            element: this,
            items: [
                {el: this.expander}
            ]
        });
        o.isDefaultInit && this._assertPopupView();
        if (this.expander.isOpened() === true) {
            this._popupView();
        }
    },

    _toggle: function () {
        this._assertPopupViewRender();
        if (this.popupView.isVisible()) {
            this._hideView();
        } else {
            if (this.isEnabled()) {
                this._popupView();
            }
        }
    },

    _initPullDownAction: function () {
        var self = this, o = this.options;
        var evs = this.options.trigger.split(",");
        BI.each(evs, function (i, e) {
            switch (e) {
                case "hover":
                    self.element[e](function (e) {
                        if (self.isEnabled() && self.isValid() && self.expander.isEnabled() && self.expander.isValid()) {
                            self._popupView();
                            self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.expander);
                            self.fireEvent(BI.Expander.EVENT_EXPAND);
                        }
                    }, function () {
                        if (self.isEnabled() && self.isValid() && self.expander.isEnabled() && self.expander.isValid() && o.toggle) {
                            self._hideView();
                            self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.expander);
                            self.fireEvent(BI.Expander.EVENT_COLLAPSE);
                        }
                    });
                    break;
                case "click":
                    if (e) {
                        self.element.off(e + "." + self.getName()).on(e + "." + self.getName(), BI.debounce(function (e) {
                            if (self.expander.element.__isMouseInBounds__(e)) {
                                if (self.isEnabled() && self.isValid() && self.expander.isEnabled() && self.expander.isValid()) {
                                    o.toggle ? self._toggle() : self._popupView();
                                    if (self.isExpanded()) {
                                        self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.expander);
                                        self.fireEvent(BI.Expander.EVENT_EXPAND);
                                    } else {
                                        self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.expander);
                                        self.fireEvent(BI.Expander.EVENT_COLLAPSE);
                                    }
                                }
                            }
                        }, BI.EVENT_RESPONSE_TIME, {
                            "leading": true,
                            "trailing": false
                        }));
                    }
                    break;
            }
        });
    },

    _initExpander: function () {
        this.expander = BI.createWidget(this.options.el);
    },

    _assertPopupView: function () {
        var self = this, o = this.options;
        if (this.popupView == null) {
            this.popupView = BI.createWidget(this.options.popup, {
                type: "bi.button_group",
                cls: "expander-popup",
                layouts: [{
                    type: "bi.vertical",
                    hgap: 0,
                    vgap: 0
                }],
                value: o.value
            }, this);
            this.popupView.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                if (type === BI.Events.CLICK) {
                    // self.setValue(self.getValue());
                    self.fireEvent(BI.Expander.EVENT_CHANGE, value, obj);
                }
            });
            this.popupView.setVisible(this.isExpanded());
            BI.nextTick(function () {
                self.fireEvent(BI.Expander.EVENT_AFTER_INIT);
            });
        }
    },

    _assertPopupViewRender: function () {
        this._assertPopupView();
        if (!this._rendered) {
            BI.createWidget({
                type: "bi.vertical",
                scrolly: false,
                element: this,
                items: [
                    {el: this.popupView}
                ]
            });
            this._rendered = true;
        }
    },

    _hideView: function () {
        this.fireEvent(BI.Expander.EVENT_BEFORE_HIDEVIEW);
        this._expanded = false;
        this.expander.setOpened(false);
        this.popupView && this.popupView.invisible();
        this.element.removeClass(this.options.expanderClass);

        this.fireEvent(BI.Expander.EVENT_AFTER_HIDEVIEW);
    },

    _popupView: function () {
        this._assertPopupViewRender();
        this.fireEvent(BI.Expander.EVENT_BEFORE_POPUPVIEW);
        this._expanded = true;
        this.expander.setOpened(true);
        this.popupView.visible();
        this.element.addClass(this.options.expanderClass);
        this.fireEvent(BI.Expander.EVENT_AFTER_POPUPVIEW);
    },

    populate: function (items) {
        // this._assertPopupView();
        this.popupView && this.popupView.populate.apply(this.popupView, arguments);
        this.expander.populate.apply(this.expander, arguments);
    },

    _setEnable: function (arg) {
        BI.Expander.superclass._setEnable.apply(this, arguments);
        !arg && this.element.removeClass(this.options.hoverClass);
        !arg && this.isViewVisible() && this._hideView();
    },

    setValue: function (v) {
        this.expander.setValue(v);
        if (BI.isNull(this.popupView)) {
            this.options.popup.value = v;
        } else {
            this.popupView.setValue(v);
        }
    },

    getValue: function () {
        if (BI.isNull(this.popupView)) {
            return this.options.popup.value;
        } else {
            return this.popupView.getValue();
        }
    },

    isViewVisible: function () {
        return this.isEnabled() && this.expander.isEnabled() && !!this.popupView && this.popupView.isVisible();
    },

    isExpanded: function () {
        return this._expanded;
    },

    showView: function () {
        if (this.isEnabled() && this.expander.isEnabled()) {
            this._popupView();
        }
    },

    hideView: function () {
        this._hideView();
    },

    getView: function () {
        return this.popupView;
    },

    getAllLeaves: function () {
        return this.popupView && this.popupView.getAllLeaves();
    },

    getNodeById: function (id) {
        if (this.expander.options.id === id) {
            return this.expander;
        }
        return this.popupView && this.popupView.getNodeById(id);
    },

    getNodeByValue: function (value) {
        if (this.expander.getValue() === value) {
            return this.expander;
        }
        return this.popupView && this.popupView.getNodeByValue(value);
    },

    destroy: function () {
        BI.Expander.superclass.destroy.apply(this, arguments);
    }
});
BI.Expander.EVENT_EXPAND = "EVENT_EXPAND";
BI.Expander.EVENT_COLLAPSE = "EVENT_COLLAPSE";
BI.Expander.EVENT_TRIGGER_CHANGE = "EVENT_TRIGGER_CHANGE";
BI.Expander.EVENT_CHANGE = "EVENT_CHANGE";
BI.Expander.EVENT_AFTER_INIT = "EVENT_AFTER_INIT";


BI.Expander.EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
BI.Expander.EVENT_AFTER_POPUPVIEW = "EVENT_AFTER_POPUPVIEW";
BI.Expander.EVENT_BEFORE_HIDEVIEW = "EVENT_BEFORE_HIDEVIEW";
BI.Expander.EVENT_AFTER_HIDEVIEW = "EVENT_AFTER_HIDEVIEW";

BI.shortcut("bi.expander", BI.Expander);/**
 * Created by GUY on 2015/8/10.
 */

BI.ComboGroup = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.ComboGroup.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-combo-group bi-list-item",

            // 以下这些属性对每一个combo都是公用的
            trigger: "click,hover",
            direction: "right",
            adjustLength: 0,
            isDefaultInit: false,
            isNeedAdjustHeight: false,
            isNeedAdjustWidth: false,

            el: {type: "bi.text_button", text: "", value: ""},
            children: [],

            popup: {
                el: {
                    type: "bi.button_tree",
                    chooseType: 0,
                    layouts: [{
                        type: "bi.vertical"
                    }]
                }
            }
        });
    },

    _init: function () {
        BI.ComboGroup.superclass._init.apply(this, arguments);
        this._populate(this.options.el);
    },

    _populate: function (item) {
        var self = this, o = this.options;
        var children = o.children;
        if (BI.isEmpty(children)) {
            throw new Error("ComboGroup构造错误");
        }
        BI.each(children, function (i, ch) {
            var son = BI.formatEL(ch).el.children;
            ch = BI.formatEL(ch).el;
            if (!BI.isEmpty(son)) {
                ch.el = BI.clone(ch);
                ch.children = son;
                ch.type = "bi.combo_group";
                ch.action = o.action;
                ch.height = o.height;
                ch.direction = o.direction;
                ch.isDefaultInit = o.isDefaultInit;
                ch.isNeedAdjustHeight = o.isNeedAdjustHeight;
                ch.isNeedAdjustWidth = o.isNeedAdjustWidth;
                ch.adjustLength = o.adjustLength;
                ch.popup = o.popup;
            }
        });
        this.combo = BI.createWidget({
            type: "bi.combo",
            element: this,
            container: o.container,
            height: o.height,
            trigger: o.trigger,
            direction: o.direction,
            isDefaultInit: o.isDefaultInit,
            isNeedAdjustWidth: o.isNeedAdjustWidth,
            isNeedAdjustHeight: o.isNeedAdjustHeight,
            adjustLength: o.adjustLength,
            el: item,
            popup: BI.extend({}, o.popup, {
                el: BI.extend({
                    items: children
                }, o.popup.el)
            })
        });
        this.combo.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.ComboGroup.EVENT_CHANGE, obj);
            }
        });
    },

    getValue: function () {
        return this.combo.getValue();
    },

    setValue: function (v) {
        this.combo.setValue(v);
    }
});
BI.ComboGroup.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.combo_group", BI.ComboGroup);BI.VirtualGroup = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.VirtualGroup.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-virtual-group",
            items: [],
            layouts: [{
                type: "bi.center",
                hgap: 0,
                vgap: 0
            }]
        });
    },

    render: function () {
        var o = this.options;
        this.populate(o.items);
        if (BI.isKey(o.value)) {
            this.setValue(o.value);
        }
    },

    _packageBtns: function (items) {
        var o = this.options;
        var map = this.buttonMap = {};
        for (var i = o.layouts.length - 1; i > 0; i--) {
            items = BI.map(items, function (k, it) {
                var el = BI.stripEL(it);
                return BI.extend({}, o.layouts[i], {
                    items: [
                        BI.extend({}, o.layouts[i].el, {
                            el: BI.extend({
                                ref: function (_ref) {
                                    if (BI.isKey(map[el.value])) {
                                        map[el.value] = _ref;
                                    }
                                }
                            }, el)
                        })
                    ]
                });
            });
        }
        return items;
    },

    _packageLayout: function (items) {
        var o = this.options, layout = BI.deepClone(o.layouts[0]);

        var lay = BI.formatEL(layout).el;
        while (lay && lay.items && !BI.isEmpty(lay.items)) {
            lay = BI.formatEL(lay.items[0]).el;
        }
        lay.items = items;
        return layout;
    },

    addItems: function (items) {
        this.layouts.addItems(items);
    },

    prependItems: function (items) {
        this.layouts.prependItems(items);
    },

    setValue: function (v) {
        v = BI.isArray(v) ? v : [v];
        BI.each(this.buttonMap, function (key, item) {
            if (item) {
                if (v.deepContains(key)) {
                    item.setSelected && item.setSelected(true);
                } else {
                    item.setSelected && item.setSelected(false);
                }
            }
        });
    },

    getNotSelectedValue: function () {
        var v = [];
        BI.each(this.buttonMap, function (i, item) {
            if (item) {
                if (item.isEnabled() && !(item.isSelected && item.isSelected())) {
                    v.push(item.getValue());
                }
            }
        });
        return v;
    },

    getValue: function () {
        var v = [];
        BI.each(this.buttonMap, function (i, item) {
            if (item) {
                if (item.isEnabled() && item.isSelected && item.isSelected()) {
                    v.push(item.getValue());
                }
            }
        });
        return v;
    },

    populate: function (items) {
        var self = this;
        items = items || [];
        this.options.items = items;
        items = this._packageBtns(items);
        if (!this.layouts) {
            this.layouts = BI.createWidget(BI.extend({element: this}, this._packageLayout(items)));
        } else {
            this.layouts.populate(items);
        }
    }
});
BI.VirtualGroup.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.virtual_group", BI.VirtualGroup);/**
 * 加载控件
 *
 * Created by GUY on 2015/8/31.
 * @class BI.Loader
 * @extends BI.Widget
 */
BI.Loader = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Loader.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-loader",

            direction: "top",
            isDefaultInit: true, // 是否默认初始化数据
            logic: {
                dynamic: true,
                scrolly: true
            },

            // 下面是button_group的属性
            el: {
                type: "bi.button_group"
            },

            items: [],
            itemsCreator: BI.emptyFn,
            onLoaded: BI.emptyFn,

            // 下面是分页信息
            count: false,
            prev: false,
            next: {},
            hasPrev: BI.emptyFn,
            hasNext: BI.emptyFn
        });
    },

    _prevLoad: function () {
        var self = this, o = this.options;
        this.prev.setLoading();
        o.itemsCreator.apply(this, [{times: --this.times}, function () {
            self.prev.setLoaded();
            self.prependItems.apply(self, arguments);
        }]);
    },

    _nextLoad: function () {
        var self = this, o = this.options;
        this.next.setLoading();
        o.itemsCreator.apply(this, [{times: ++this.times}, function () {
            self.next.setLoaded();
            self.addItems.apply(self, arguments);
        }]);
    },

    _init: function () {
        BI.Loader.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        if (o.itemsCreator === false) {
            o.prev = false;
            o.next = false;
        }
        if (o.prev !== false) {
            this.prev = BI.createWidget(BI.extend({
                type: "bi.loading_bar"
            }, o.prev));
            this.prev.on(BI.Controller.EVENT_CHANGE, function (type) {
                if (type === BI.Events.CLICK) {
                    self._prevLoad();
                }
            });
        }

        this.button_group = BI.createWidget(o.el, {
            type: "bi.button_group",
            chooseType: 0,
            items: o.items,
            behaviors: {},
            layouts: [{
                type: "bi.vertical"
            }]
        });
        this.button_group.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.Loader.EVENT_CHANGE, obj);
            }
        });

        if (o.next !== false) {
            this.next = BI.createWidget(BI.extend({
                type: "bi.loading_bar"
            }, o.next));
            this.next.on(BI.Controller.EVENT_CHANGE, function (type) {
                if (type === BI.Events.CLICK) {
                    self._nextLoad();
                }
            });
        }

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({
            scrolly: true
        }, o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.prev, this.button_group, this.next)
        }))));

        o.isDefaultInit && BI.isEmpty(o.items) && BI.nextTick(BI.bind(function () {
            o.isDefaultInit && BI.isEmpty(o.items) && this.populate();
        }, this));
        if (BI.isNotEmptyArray(o.items)) {
            this.populate(o.items);
        }
    },

    hasPrev: function () {
        var o = this.options;
        if (BI.isNumber(o.count)) {
            return this.count < o.count;
        }
        return !!o.hasPrev.apply(this, [{
            times: this.times,
            count: this.count
        }]);
    },

    hasNext: function () {
        var o = this.options;
        if (BI.isNumber(o.count)) {
            return this.count < o.count;
        }
        return !!o.hasNext.apply(this, [{
            times: this.times,
            count: this.count
        }]);
    },

    prependItems: function (items) {
        this.count += items.length;
        if (this.next !== false) {
            if (this.hasPrev()) {
                this.options.items = this.options.items.concat(items);
                this.prev.setLoaded();
            } else {
                this.prev.setEnd();
            }
        }
        this.button_group.prependItems.apply(this.button_group, arguments);
    },

    addItems: function (items) {
        this.count += items.length;
        if (BI.isObject(this.next)) {
            if (this.hasNext()) {
                this.options.items = this.options.items.concat(items);
                this.next.setLoaded();
            } else {
                this.next.setEnd();
            }
        }
        this.button_group.addItems.apply(this.button_group, arguments);
    },

    populate: function (items) {
        var self = this, o = this.options;
        if (arguments.length === 0 && (BI.isFunction(o.itemsCreator))) {
            o.itemsCreator.apply(this, [{times: 1}, function () {
                if (arguments.length === 0) {
                    throw new Error("arguments can not be null!!!");
                }
                self.populate.apply(self, arguments);
                o.onLoaded();
            }]);
            return;
        }
        this.options.items = items;
        this.times = 1;
        this.count = 0;
        this.count += items.length;
        if (BI.isObject(this.next)) {
            if (this.hasNext()) {
                this.next.setLoaded();
            } else {
                this.next.invisible();
            }
        }
        if (BI.isObject(this.prev)) {
            if (this.hasPrev()) {
                this.prev.setLoaded();
            } else {
                this.prev.invisible();
            }
        }
        this.button_group.populate.apply(this.button_group, arguments);
    },

    setNotSelectedValue: function () {
        this.button_group.setNotSelectedValue.apply(this.button_group, arguments);
    },

    getNotSelectedValue: function () {
        return this.button_group.getNotSelectedValue();
    },

    setValue: function () {
        this.button_group.setValue.apply(this.button_group, arguments);
    },

    getValue: function () {
        return this.button_group.getValue.apply(this.button_group, arguments);
    },

    getAllButtons: function () {
        return this.button_group.getAllButtons();
    },

    getAllLeaves: function () {
        return this.button_group.getAllLeaves();
    },

    getSelectedButtons: function () {
        return this.button_group.getSelectedButtons();
    },

    getNotSelectedButtons: function () {
        return this.button_group.getNotSelectedButtons();
    },

    getIndexByValue: function (value) {
        return this.button_group.getIndexByValue(value);
    },

    getNodeById: function (id) {
        return this.button_group.getNodeById(id);
    },

    getNodeByValue: function (value) {
        return this.button_group.getNodeByValue(value);
    },

    empty: function () {
        this.button_group.empty();
        BI.each([this.prev, this.next], function (i, ob) {
            ob && ob.setVisible(false);
        });
    },

    destroy: function () {
        BI.Loader.superclass.destroy.apply(this, arguments);
    }
});
BI.Loader.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.loader", BI.Loader);/**
 * Created by GUY on 2015/6/26.
 */

BI.Navigation = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Navigation.superclass._defaultConfig.apply(this, arguments), {
            direction: "bottom", // top, bottom, left, right, custom
            logic: {
                dynamic: false
            },
            single: false,
            showIndex: false,
            tab: false,
            cardCreator: function (v) {
                return BI.createWidget();
            },

            afterCardCreated: BI.emptyFn,
            afterCardShow: BI.emptyFn
        });
    },

    render: function () {
        var self = this, o = this.options;
        this.tab = BI.createWidget(this.options.tab, {type: "bi.button_group"});
        this.cardMap = {};
        this.showIndex = 0;
        this.layout = BI.createWidget({
            type: "bi.card"
        });
        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.tab, this.layout)
        }))));


        new BI.ShowListener({
            eventObj: this.tab,
            cardLayout: this.layout,
            cardNameCreator: function (v) {
                return self.showIndex + v;
            },
            cardCreator: function (v) {
                var card = o.cardCreator(v);
                self.cardMap[v] = card;
                return card;
            },
            afterCardCreated: BI.bind(this.afterCardCreated, this),
            afterCardShow: BI.bind(this.afterCardShow, this)
        });
    },

    mounted: function () {
        var o = this.options;
        if (o.showIndex !== false) {
            this.setSelect(o.showIndex);
        }
    },

    _deleteOtherCards: function (currCardName) {
        var self = this, o = this.options;
        if (o.single === true) {
            BI.each(this.cardMap, function (name, card) {
                if (name !== (currCardName + "")) {
                    self.layout.deleteCardByName(name);
                    delete self.cardMap[name];
                }
            });
        }
    },

    afterCardCreated: function (v) {
        var self = this;
        this.cardMap[v].on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.Navigation.EVENT_CHANGE, obj);
            }
        });
        this.options.afterCardCreated.apply(this, arguments);
    },

    afterCardShow: function (v) {
        this.showIndex = v;
        this._deleteOtherCards(v);
        this.options.afterCardShow.apply(this, arguments);
    },

    populate: function () {
        var card = this.layout.getShowingCard();
        if (card) {
            return card.populate.apply(card, arguments);
        }
    },

    _assertCard: function (v) {
        if (!this.layout.isCardExisted(v)) {
            var card = this.options.cardCreator(v);
            this.cardMap[v] = card;
            this.layout.addCardByName(v, card);
            this.afterCardCreated(v);
        }
    },

    setSelect: function (v) {
        this._assertCard(v);
        this.layout.showCardByName(v);
        this._deleteOtherCards(v);
        if (this.showIndex !== v) {
            this.showIndex = v;
            BI.nextTick(BI.bind(this.afterCardShow, this, v));
        }
    },

    getSelect: function () {
        return this.showIndex;
    },

    getSelectedCard: function () {
        if (BI.isKey(this.showIndex)) {
            return this.cardMap[this.showIndex];
        }
    },

    /**
     * @override
     */
    setValue: function (v) {
        var card = this.layout.getShowingCard();
        if (card) {
            card.setValue(v);
        }
    },

    /**
     * @override
     */
    getValue: function () {
        var card = this.layout.getShowingCard();
        if (card) {
            return card.getValue();
        }
    },

    empty: function () {
        this.layout.deleteAllCard();
        this.cardMap = {};
    },

    destroy: function () {
        BI.Navigation.superclass.destroy.apply(this, arguments);
    }
});
BI.Navigation.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.navigation", BI.Navigation);/**
 * 搜索逻辑控件
 *
 * Created by GUY on 2015/9/28.
 * @class BI.Searcher
 * @extends BI.Widget
 */

BI.Searcher = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Searcher.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-searcher",
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0,
            vgap: 0,
            hgap: 0,

            isDefaultInit: false,
            isAutoSearch: true, // 是否自动搜索
            isAutoSync: true, // 是否自动同步数据, 即是否保持搜索面板和adapter面板状态值的统一
            chooseType: BI.ButtonGroup.CHOOSE_TYPE_SINGLE,

            // isAutoSearch为false时启用
            onSearch: function (op, callback) {
                callback([]);
            },

            el: {
                type: "bi.search_editor"
            },

            popup: {
                type: "bi.searcher_view"
            },

            adapter: null,
            masker: { // masker层
                offset: {}
            }
        });
    },

    _init: function () {
        BI.Searcher.superclass._init.apply(this, arguments);
        var self = this, o = this.options;

        this.editor = BI.createWidget(o.el, {
            type: "bi.search_editor"
        });

        BI.createWidget({
            type: "bi.vertical",
            element: this,
            lgap: o.lgap,
            rgap: o.rgap,
            tgap: o.tgap,
            bgap: o.bgap,
            vgap: o.vgap,
            hgap: o.hgap,
            items: [this.editor]
        });
        o.isDefaultInit && (this._assertPopupView());

        var search = BI.debounce(BI.bind(this._search, this), BI.EVENT_RESPONSE_TIME, {
            "leading": true,
            "trailing": false
        });
        this.editor.on(BI.Controller.EVENT_CHANGE, function (type) {
            switch (type) {
                case BI.Events.STARTEDIT:
                    self._startSearch();
                    break;
                case BI.Events.EMPTY:
                    self._stopSearch();
                    break;
                case BI.Events.CHANGE:
                    search();
                    break;
                case BI.Events.PAUSE:
                    self._pauseSearch();
                    break;
            }
        });
    },

    _assertPopupView: function () {
        var self = this, o = this.options;
        if ((o.masker && !BI.Maskers.has(this.getName())) || (o.masker === false && !this.popupView)) {
            this.popupView = BI.createWidget(o.popup, {
                type: "bi.searcher_view",
                chooseType: o.chooseType
            });
            this.popupView.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                if (type === BI.Events.CLICK) {
                    if (o.isAutoSync) {
                        var values = o.adapter && o.adapter.getValue();
                        if (!obj.isSelected()) {
                            o.adapter && o.adapter.setValue(BI.deepWithout(values, obj.getValue()));
                        } else {
                            switch (o.chooseType) {
                                case BI.ButtonGroup.CHOOSE_TYPE_SINGLE:
                                    o.adapter && o.adapter.setValue([obj.getValue()]);
                                    break;
                                case BI.ButtonGroup.CHOOSE_TYPE_MULTI:
                                    values.push(obj.getValue());
                                    o.adapter && o.adapter.setValue(values);
                                    break;
                            }
                        }
                    }
                    self.fireEvent(BI.Searcher.EVENT_CHANGE, value, obj);
                }
            });
            BI.nextTick(function () {
                self.fireEvent(BI.Searcher.EVENT_AFTER_INIT);
            });
        }
        if (o.masker && !BI.Maskers.has(this.getName())) {
            BI.Maskers.create(this.getName(), o.adapter, BI.extend({
                container: this,
                render: this.popupView
            }, o.masker), this);
        }
    },

    _startSearch: function () {
        this._assertPopupView();
        this._stop = false;
        this._isSearching = true;
        this.fireEvent(BI.Searcher.EVENT_START);
        this.popupView.startSearch && this.popupView.startSearch();
        // 搜索前先清空dom
        // BI.Maskers.get(this.getName()).empty();
        BI.nextTick(function (name) {
            BI.Maskers.show(name);
        }, this.getName());
    },

    _pauseSearch: function () {
        var o = this.options, name = this.getName();
        this._stop = true;
        BI.nextTick(function (name) {
            BI.Maskers.hide(name);
        }, this.getName());
        if (this._isSearching === true) {
            this.popupView && this.popupView.pauseSearch && this.popupView.pauseSearch();
            this.fireEvent(BI.Searcher.EVENT_PAUSE);
        }
        this._isSearching = false;
    },

    _stopSearch: function () {
        var o = this.options, name = this.getName();
        this._stop = true;
        BI.Maskers.hide(name);
        if (this._isSearching === true) {
            this.popupView && this.popupView.stopSearch && this.popupView.stopSearch();
            this.fireEvent(BI.Searcher.EVENT_STOP);
        }
        this._isSearching = false;
    },

    _search: function () {
        var self = this, o = this.options, keyword = this.editor.getValue();
        if (keyword === "" || this._stop) {
            return;
        }
        if (o.isAutoSearch) {
            var items = (o.adapter && ((o.adapter.getItems && o.adapter.getItems()) || o.adapter.attr("items"))) || [];
            var finding = BI.Func.getSearchResult(items, keyword);
            var match = finding.match, find = finding.find;
            this.popupView.populate(find, match, keyword);
            o.isAutoSync && o.adapter && o.adapter.getValue && this.popupView.setValue(o.adapter.getValue());
            self.fireEvent(BI.Searcher.EVENT_SEARCHING);
            return;
        }
        this.popupView.loading && this.popupView.loading();
        o.onSearch({
            times: 1,
            keyword: keyword,
            selectedValues: o.adapter && o.adapter.getValue()
        }, function (searchResult, matchResult) {
            if (!self._stop) {
                var args = [].slice.call(arguments);
                if (args.length > 0) {
                    args.push(keyword);
                }
                BI.Maskers.show(self.getName());
                self.popupView.populate.apply(self.popupView, args);
                o.isAutoSync && o.adapter && o.adapter.getValue && self.popupView.setValue(o.adapter.getValue());
                self.popupView.loaded && self.popupView.loaded();
                self.fireEvent(BI.Searcher.EVENT_SEARCHING);
            }
        });
    },

    setAdapter: function (adapter) {
        this.options.adapter = adapter;
        BI.Maskers.remove(this.getName());
    },

    doSearch: function () {
        if (this.isSearching()) {
            this._search();
        }
    },

    stopSearch: function () {
        this._stopSearch();// 先停止搜索，然后再去设置editor为空
        // important:停止搜索必须退出编辑状态,这里必须加上try(input框不显示时blur会抛异常)
        try {
            this.editor.blur();
        } catch (e) {
            if (!this.editor.blur) {
                throw new Error("editor没有实现blur方法");
            }
        } finally {
            this.editor.setValue("");
        }
    },

    isSearching: function () {
        return this._isSearching;
    },

    isViewVisible: function () {
        return this.editor.isEnabled() && BI.Maskers.isVisible(this.getName());
    },

    getView: function () {
        return this.popupView;
    },

    hasMatched: function () {
        this._assertPopupView();
        return this.popupView.hasMatched();
    },

    adjustHeight: function () {
        if (BI.Maskers.has(this.getName()) && BI.Maskers.get(this.getName()).isVisible()) {
            BI.Maskers.show(this.getName());
        }
    },

    adjustView: function () {
        this.isViewVisible() && BI.Maskers.show(this.getName());
    },

    setValue: function (v) {
        if (BI.isNull(this.popupView)) {
            this.options.popup.value = v;
        } else {
            this.popupView.setValue(v);
        }
    },

    getKeyword: function () {
        return this.editor.getValue();
    },

    getKeywords: function () {
        return this.editor.getKeywords();
    },

    getValue: function () {
        var o = this.options;
        if (o.isAutoSync && o.adapter && o.adapter.getValue) {
            return o.adapter.getValue();
        }
        if (this.isSearching()) {
            return this.popupView.getValue();
        } else if (o.adapter && o.adapter.getValue) {
            return o.adapter.getValue();
        }
        if (BI.isNull(this.popupView)) {
            return o.popup.value;
        }
        return this.popupView.getValue();

    },

    populate: function (result, searchResult, keyword) {
        var o = this.options;
        this._assertPopupView();
        this.popupView.populate.apply(this.popupView, arguments);
        if (o.isAutoSync && o.adapter && o.adapter.getValue) {
            this.popupView.setValue(o.adapter.getValue());
        }
    },

    empty: function () {
        this.popupView && this.popupView.empty();
    },

    destroy: function () {
        BI.Maskers.remove(this.getName());
        BI.Searcher.superclass.destroy.apply(this, arguments);
    }
});
BI.Searcher.EVENT_CHANGE = "EVENT_CHANGE";
BI.Searcher.EVENT_START = "EVENT_START";
BI.Searcher.EVENT_STOP = "EVENT_STOP";
BI.Searcher.EVENT_PAUSE = "EVENT_PAUSE";
BI.Searcher.EVENT_SEARCHING = "EVENT_SEARCHING";
BI.Searcher.EVENT_AFTER_INIT = "EVENT_AFTER_INIT";

BI.shortcut("bi.searcher", BI.Searcher);/**
 *
 * 切换显示或隐藏面板
 *
 * Created by GUY on 2015/11/2.
 * @class BI.Switcher
 * @extends BI.Widget
 */
BI.Switcher = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Switcher.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-switcher",
            direction: BI.Direction.Top,
            trigger: "click",
            toggle: true,
            el: {},
            popup: {},
            adapter: null,
            masker: {},
            switcherClass: "bi-switcher-popup",
            hoverClass: "bi-switcher-hover"
        });
    },

    _init: function () {
        BI.Switcher.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this._initSwitcher();
        this._initPullDownAction();
        this.switcher.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            if (self.isEnabled() && self.isValid()) {
                if (type === BI.Events.EXPAND) {
                    self._popupView();
                }
                if (type === BI.Events.COLLAPSE) {
                    self._hideView();
                }
                if (type === BI.Events.EXPAND) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.fireEvent(BI.Switcher.EVENT_EXPAND);
                }
                if (type === BI.Events.COLLAPSE) {
                    self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                    self.isViewVisible() && self.fireEvent(BI.Switcher.EVENT_COLLAPSE);
                }
                if (type === BI.Events.CLICK) {
                    self.fireEvent(BI.Switcher.EVENT_TRIGGER_CHANGE, value, obj);
                }
            }
        });

        this.element.hover(function () {
            if (self.isEnabled() && self.switcher.isEnabled()) {
                self.element.addClass(o.hoverClass);
            }
        }, function () {
            if (self.isEnabled() && self.switcher.isEnabled()) {
                self.element.removeClass(o.hoverClass);
            }
        });
        BI.createWidget({
            type: "bi.vertical",
            scrolly: false,
            element: this,
            items: [
                {el: this.switcher}
            ]
        });
        o.isDefaultInit && (this._assertPopupView());
    },

    _toggle: function () {
        this._assertPopupView();
        if (this.isExpanded()) {
            this._hideView();
        } else {
            if (this.isEnabled()) {
                this._popupView();
            }
        }
    },

    _initPullDownAction: function () {
        var self = this, o = this.options;
        var evs = this.options.trigger.split(",");
        BI.each(evs, function (i, e) {
            switch (e) {
                case "hover":
                    self.element[e](function (e) {
                        if (self.isEnabled() && self.switcher.isEnabled()) {
                            self._popupView();
                            self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.switcher);
                            self.fireEvent(BI.Switcher.EVENT_EXPAND);
                        }
                    }, function () {
                        if (self.isEnabled() && self.switcher.isEnabled() && o.toggle) {
                            self._hideView();
                            self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.switcher);
                            self.fireEvent(BI.Switcher.EVENT_COLLAPSE);
                        }
                    });
                    break;
                default :
                    if (e) {
                        self.element.off(e + "." + self.getName()).on(e + "." + self.getName(), BI.debounce(function (e) {
                            if (self.switcher.element.__isMouseInBounds__(e)) {
                                if (self.isEnabled() && self.switcher.isEnabled()) {
                                    o.toggle ? self._toggle() : self._popupView();
                                    if (self.isExpanded()) {
                                        self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, "", self.switcher);
                                        self.fireEvent(BI.Switcher.EVENT_EXPAND);
                                    } else {
                                        self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, "", self.switcher);
                                        self.fireEvent(BI.Switcher.EVENT_COLLAPSE);
                                    }
                                }
                            }
                        }, BI.EVENT_RESPONSE_TIME, {
                            "leading": true,
                            "trailing": false
                        }));
                    }
                    break;
            }
        });
    },

    _initSwitcher: function () {
        this.switcher = BI.createWidget(this.options.el, {
            value: this.options.value
        });
    },

    _assertPopupView: function () {
        var self = this, o = this.options;
        if (!this._created) {
            this.popupView = BI.createWidget(o.popup, {
                type: "bi.button_group",
                element: o.adapter && BI.Maskers.create(this.getName(), o.adapter, BI.extend({container: this}, o.masker)),
                cls: "switcher-popup",
                layouts: [{
                    type: "bi.vertical",
                    hgap: 0,
                    vgap: 0
                }],
                value: o.value
            }, this);
            this.popupView.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
                if (type === BI.Events.CLICK) {
                    self.fireEvent(BI.Switcher.EVENT_CHANGE, value, obj);
                }
            });
            if (o.direction !== BI.Direction.Custom && !o.adapter) {
                BI.createWidget({
                    type: "bi.vertical",
                    scrolly: false,
                    element: this,
                    items: [
                        {el: this.popupView}
                    ]
                });
            }
            this._created = true;
            BI.nextTick(function () {
                self.fireEvent(BI.Switcher.EVENT_AFTER_INIT);
            });
        }
    },

    _hideView: function () {
        this.fireEvent(BI.Switcher.EVENT_BEFORE_HIDEVIEW);
        var self = this, o = this.options;
        o.adapter ? BI.Maskers.hide(self.getName()) : (self.popupView && self.popupView.setVisible(false));
        BI.nextTick(function () {
            o.adapter ? BI.Maskers.hide(self.getName()) : (self.popupView && self.popupView.setVisible(false));
            self.element.removeClass(o.switcherClass);
            self.fireEvent(BI.Switcher.EVENT_AFTER_HIDEVIEW);
        });
    },

    _popupView: function () {
        var self = this, o = this.options;
        this._assertPopupView();
        this.fireEvent(BI.Switcher.EVENT_BEFORE_POPUPVIEW);
        o.adapter ? BI.Maskers.show(this.getName()) : self.popupView.setVisible(true);
        BI.nextTick(function (name) {
            o.adapter ? BI.Maskers.show(name) : self.popupView.setVisible(true);
            self.element.addClass(o.switcherClass);
            self.fireEvent(BI.Switcher.EVENT_AFTER_POPUPVIEW);
        }, this.getName());
    },

    populate: function (items) {
        this._assertPopupView();
        this.popupView.populate.apply(this.popupView, arguments);
        this.switcher.populate.apply(this.switcher, arguments);
    },

    _setEnable: function (arg) {
        BI.Switcher.superclass._setEnable.apply(this, arguments);
        !arg && this.isViewVisible() && this._hideView();
    },

    setValue: function (v) {
        this.switcher.setValue(v);
        if (BI.isNull(this.popupView)) {
            this.options.popup.value = v;
        } else {
            this.popupView.setValue(v);
        }
    },

    getValue: function () {
        if (BI.isNull(this.popupView)) {
            return this.options.popup.value;
        } else {
            return this.popupView.getValue();
        }
    },

    setAdapter: function (adapter) {
        this.options.adapter = adapter;
        BI.Maskers.remove(this.getName());
    },

    isViewVisible: function () {
        return this.isEnabled() && this.switcher.isEnabled() &&
            (this.options.adapter ? BI.Maskers.isVisible(this.getName()) : (this.popupView && this.popupView.isVisible()));
    },

    isExpanded: function () {
        return this.isViewVisible();
    },

    showView: function () {
        if (this.isEnabled() && this.switcher.isEnabled()) {
            this._popupView();
        }
    },

    hideView: function () {
        this._hideView();
    },

    getView: function () {
        return this.popupView;
    },

    adjustView: function () {
        this.isViewVisible() && BI.Maskers.show(this.getName());
    },

    getAllLeaves: function () {
        return this.popupView && this.popupView.getAllLeaves();
    },

    getNodeById: function (id) {
        if (this.switcher.attr("id") === id) {
            return this.switcher;
        }
        return this.popupView && this.popupView.getNodeById(id);
    },

    getNodeByValue: function (value) {
        if (this.switcher.getValue() === value) {
            return this.switcher;
        }
        return this.popupView && this.popupView.getNodeByValue(value);
    },

    empty: function () {
        this.popupView && this.popupView.empty();
    },

    destroy: function () {
        BI.Switcher.superclass.destroy.apply(this, arguments);
    }
});
BI.Switcher.EVENT_EXPAND = "EVENT_EXPAND";
BI.Switcher.EVENT_COLLAPSE = "EVENT_COLLAPSE";
BI.Switcher.EVENT_TRIGGER_CHANGE = "EVENT_TRIGGER_CHANGE";
BI.Switcher.EVENT_CHANGE = "EVENT_CHANGE";
BI.Switcher.EVENT_AFTER_INIT = "EVENT_AFTER_INIT";


BI.Switcher.EVENT_BEFORE_POPUPVIEW = "EVENT_BEFORE_POPUPVIEW";
BI.Switcher.EVENT_AFTER_POPUPVIEW = "EVENT_AFTER_POPUPVIEW";
BI.Switcher.EVENT_BEFORE_HIDEVIEW = "EVENT_BEFORE_HIDEVIEW";
BI.Switcher.EVENT_AFTER_HIDEVIEW = "EVENT_AFTER_HIDEVIEW";

BI.shortcut("bi.switcher", BI.Switcher);/**
 * Created by GUY on 2015/6/26.
 */

BI.Tab = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Tab.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-tab",
            direction: "top", // top, bottom, left, right, custom
            single: false, // 是不是单页面
            logic: {
                dynamic: false
            },
            showIndex: false,
            tab: false,
            cardCreator: function (v) {
                return BI.createWidget();
            }
        });
    },

    render: function () {
        var self = this, o = this.options;
        if (BI.isObject(o.tab)) {
            this.tab = BI.createWidget(this.options.tab, {type: "bi.button_group"});
            this.tab.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
                self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            });
        }
        this.cardMap = {};
        this.layout = BI.createWidget({
            type: "bi.card"
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.tab, this.layout)
        }))));

        var listener = new BI.ShowListener({
            eventObj: this.tab,
            cardLayout: this.layout,
            cardCreator: function (v) {
                var card = o.cardCreator.apply(self, arguments);
                self.cardMap[v] = card;
                return card;
            },
            afterCardShow: function (v) {
                self._deleteOtherCards(v);
                self.curr = v;
            }
        });
        listener.on(BI.ShowListener.EVENT_CHANGE, function (value) {
            self.fireEvent(BI.Tab.EVENT_CHANGE, value, self);
        });
    },

    _deleteOtherCards: function (currCardName) {
        var self = this, o = this.options;
        if (o.single === true) {
            BI.each(this.cardMap, function (name, card) {
                if (name !== (currCardName + "")) {
                    self.layout.deleteCardByName(name);
                    delete self.cardMap[name];
                }
            });
        }
    },

    _assertCard: function (v) {
        if (!this.layout.isCardExisted(v)) {
            var card = this.options.cardCreator(v);
            this.cardMap[v] = card;
            this.layout.addCardByName(v, card);
        }
    },

    mounted: function () {
        var o = this.options;
        if (o.showIndex !== false) {
            this.setSelect(o.showIndex);
        }
    },

    setSelect: function (v) {
        this.tab && this.tab.setValue(v);
        this._assertCard(v);
        this.layout.showCardByName(v);
        this._deleteOtherCards(v);
        if (this.curr !== v) {
            this.curr = v;
        }
    },

    removeTab: function (cardname) {
        var self = this, o = this.options;
        BI.any(this.cardMap, function (name, card) {
            if (BI.isEqual(name, (cardname + ""))) {
                self.layout.deleteCardByName(name);
                delete self.cardMap[name];
                return true;
            }
        });
    },

    getSelect: function () {
        return this.curr;
    },

    getSelectedTab: function () {
        return this.layout.getShowingCard();
    },

    getTab: function (v) {
        this._assertCard(v);
        return this.layout.getCardByName(v);
    },

    setValue: function (v) {
        var card = this.layout.getShowingCard();
        if (card) {
            card.setValue(v);
        }
    },

    getValue: function () {
        var card = this.layout.getShowingCard();
        if (card) {
            return card.getValue();
        }
    },

    populate: function () {
        var card = this.layout.getShowingCard();
        if (card) {
            return card.populate && card.populate.apply(card, arguments);
        }
    },

    empty: function () {
        this.layout.deleteAllCard();
        this.cardMap = {};
    },

    destroy: function () {
        this.cardMap = {};
        BI.Tab.superclass.destroy.apply(this, arguments);
    }
});
BI.Tab.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.tab", BI.Tab);/**
 * 表示当前对象
 *
 * Created by GUY on 2015/9/7.
 * @class BI.EL
 * @extends BI.Widget
 */
BI.EL = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.EL.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-el",
            el: {},
            layout: {}
        });
    },
    _init: function () {
        BI.EL.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.ele = BI.createWidget(o.el);
        BI.createWidget(o.layout, {
            type: "bi.adaptive",
            element: this,
            items: [this.ele]
        });
        this.ele.on(BI.Controller.EVENT_CHANGE, function () {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
        });
    },

    setValue: function (v) {
        this.ele.setValue(v);
    },

    getValue: function () {
        return this.ele.getValue();
    },

    populate: function () {
        this.ele.populate.apply(this, arguments);
    }
});
BI.shortcut("bi.el", BI.EL);// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

// This is CodeMirror (http://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .

(function(mod) {
    this.CodeMirror = mod();
})(function() {
  "use strict";

  // BROWSER SNIFFING

  // Kludges for bugs and behavior differences that can't be feature
  // detected are enabled based on userAgent etc sniffing.

  var gecko = /gecko\/\d/i.test(navigator.userAgent);
  var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent);
  var ie = ie_upto10 || ie_11up;
  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
  var webkit = /WebKit\//.test(navigator.userAgent);
  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
  var chrome = /Chrome\//.test(navigator.userAgent);
  var presto = /Opera\//.test(navigator.userAgent);
  var safari = /Apple Computer/.test(navigator.vendor);
  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
  var phantom = /PhantomJS/.test(navigator.userAgent);

  var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
  // This is woefully incomplete. Suggestions for alternative methods welcome.
  var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
  var mac = ios || /Mac/.test(navigator.platform);
  var windows = /win/i.test(navigator.platform);

  var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
  if (presto_version) presto_version = Number(presto_version[1]);
  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
  var captureRightClick = gecko || (ie && ie_version >= 9);

  // Optimize some code when these features are not used.
  var sawReadOnlySpans = false, sawCollapsedSpans = false;

  // EDITOR CONSTRUCTOR

  // A CodeMirror instance represents an editor. This is the object
  // that user code is usually dealing with.

  function CodeMirror(place, options) {
    if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);

    this.options = options = options ? copyObj(options) : {};
    // Determine effective options based on given values and defaults.
    copyObj(defaults, options, false);
    setGuttersForLineNumbers(options);

    var doc = options.value;
    if (typeof doc == "string") doc = new Doc(doc, options.mode);
    this.doc = doc;

    var input = new CodeMirror.inputStyles[options.inputStyle](this);
    var display = this.display = new Display(place, doc, input);
    display.wrapper.CodeMirror = this;
    updateGutters(this);
    themeChanged(this);
    if (options.lineWrapping)
      this.display.wrapper.className += " CodeMirror-wrap";
    if (options.autofocus && !mobile) display.input.focus();
    initScrollbars(this);

    this.state = {
      keyMaps: [],  // stores maps added by addKeyMap
      overlays: [], // highlighting overlays, as added by addOverlay
      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
      overwrite: false,
      delayingBlurEvent: false,
      focused: false,
      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
      pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
      draggingText: false,
      highlight: new Delayed(), // stores highlight worker timeout
      keySeq: null,  // Unfinished key sequence
      specialChars: null
    };

    var cm = this;

    // Override magic textarea content restore that IE sometimes does
    // on our hidden textarea on reload
    if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);

    registerEventHandlers(this);
    ensureGlobalHandlers();

    startOperation(this);
    this.curOp.forceUpdate = true;
    attachDoc(this, doc);

    if ((options.autofocus && !mobile) || cm.hasFocus())
      setTimeout(bind(onFocus, this), 20);
    else
      onBlur(this);

    for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
      optionHandlers[opt](this, options[opt], Init);
    maybeUpdateLineNumberWidth(this);
    if (options.finishInit) options.finishInit(this);
    for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
    endOperation(this);
    // Suppress optimizelegibility in Webkit, since it breaks text
    // measuring on line wrapping boundaries.
    if (webkit && options.lineWrapping &&
        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
      display.lineDiv.style.textRendering = "auto";
  }

  // DISPLAY CONSTRUCTOR

  // The display handles the DOM integration, both for input reading
  // and content drawing. It holds references to DOM nodes and
  // display-related state.

  function Display(place, doc, input) {
    var d = this;
    this.input = input;

    // Covers bottom-right square when both scrollbars are present.
    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
    d.scrollbarFiller.setAttribute("cm-not-content", "true");
    // Covers bottom of gutter when coverGutterNextToScrollbar is on
    // and h scrollbar is present.
    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
    d.gutterFiller.setAttribute("cm-not-content", "true");
    // Will contain the actual code, positioned to cover the viewport.
    d.lineDiv = elt("div", null, "CodeMirror-code");
    // Elements are added to these to represent selection and cursors.
    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
    // A visibility: hidden element used to find the size of things.
    d.measure = elt("div", null, "CodeMirror-measure");
    // When lines outside of the viewport are measured, they are drawn in this.
    d.lineMeasure = elt("div", null, "CodeMirror-measure");
    // Wraps everything that needs to exist inside the vertically-padded coordinate system
    d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
                      null, "position: relative; outline: none");
    // Moved around its parent to cover visible view.
    d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
    // Set to the height of the document, allowing scrolling.
    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
    d.sizerWidth = null;
    // Behavior of elts with overflow: auto and padding is
    // inconsistent across browsers. This is used to ensure the
    // scrollable area is big enough.
    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
    // Will contain the gutters, if any.
    d.gutters = elt("div", null, "CodeMirror-gutters");
    d.lineGutter = null;
    // Actual scrollable element.
    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
    d.scroller.setAttribute("tabIndex", "-1");
    // The element in which the editor lives.
    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");

    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
    if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;

    if (place) {
      if (place.appendChild) place.appendChild(d.wrapper);
      else place(d.wrapper);
    }

    // Current rendered range (may be bigger than the view window).
    d.viewFrom = d.viewTo = doc.first;
    d.reportedViewFrom = d.reportedViewTo = doc.first;
    // Information about the rendered lines.
    d.view = [];
    d.renderedView = null;
    // Holds info about a single rendered line when it was rendered
    // for measurement, while not in view.
    d.externalMeasured = null;
    // Empty space (in pixels) above the view
    d.viewOffset = 0;
    d.lastWrapHeight = d.lastWrapWidth = 0;
    d.updateLineNumbers = null;

    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
    d.scrollbarsClipped = false;

    // Used to only resize the line number gutter when necessary (when
    // the amount of lines crosses a boundary that makes its width change)
    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
    // Set to true when a non-horizontal-scrolling line widget is
    // added. As an optimization, line widget aligning is skipped when
    // this is false.
    d.alignWidgets = false;

    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

    // Tracks the maximum line length so that the horizontal scrollbar
    // can be kept static when scrolling.
    d.maxLine = null;
    d.maxLineLength = 0;
    d.maxLineChanged = false;

    // Used for measuring wheel scrolling granularity
    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

    // True when shift is held down.
    d.shift = false;

    // Used to track whether anything happened since the context menu
    // was opened.
    d.selForContextMenu = null;

    d.activeTouch = null;

    input.init(d);
  }

  // STATE UPDATES

  // Used to get the editor into a consistent state again when options change.

  function loadMode(cm) {
    cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
    resetModeState(cm);
  }

  function resetModeState(cm) {
    cm.doc.iter(function(line) {
      if (line.stateAfter) line.stateAfter = null;
      if (line.styles) line.styles = null;
    });
    cm.doc.frontier = cm.doc.first;
    startWorker(cm, 100);
    cm.state.modeGen++;
    if (cm.curOp) regChange(cm);
  }

  function wrappingChanged(cm) {
    if (cm.options.lineWrapping) {
      addClass(cm.display.wrapper, "CodeMirror-wrap");
      cm.display.sizer.style.minWidth = "";
      cm.display.sizerWidth = null;
    } else {
      rmClass(cm.display.wrapper, "CodeMirror-wrap");
      findMaxLine(cm);
    }
    estimateLineHeights(cm);
    regChange(cm);
    clearCaches(cm);
    setTimeout(function(){updateScrollbars(cm);}, 100);
  }

  // Returns a function that estimates the height of a line, to use as
  // first approximation until the line becomes visible (and is thus
  // properly measurable).
  function estimateHeight(cm) {
    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
    return function(line) {
      if (lineIsHidden(cm.doc, line)) return 0;

      var widgetsHeight = 0;
      if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
        if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
      }

      if (wrapping)
        return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
      else
        return widgetsHeight + th;
    };
  }

  function estimateLineHeights(cm) {
    var doc = cm.doc, est = estimateHeight(cm);
    doc.iter(function(line) {
      var estHeight = est(line);
      if (estHeight != line.height) updateLineHeight(line, estHeight);
    });
  }

  function themeChanged(cm) {
    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
    clearCaches(cm);
  }

  function guttersChanged(cm) {
    updateGutters(cm);
    regChange(cm);
    setTimeout(function(){alignHorizontally(cm);}, 20);
  }

  // Rebuild the gutter elements, ensure the margin to the left of the
  // code matches their width.
  function updateGutters(cm) {
    var gutters = cm.display.gutters, specs = cm.options.gutters;
    removeChildren(gutters);
    for (var i = 0; i < specs.length; ++i) {
      var gutterClass = specs[i];
      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
      if (gutterClass == "CodeMirror-linenumbers") {
        cm.display.lineGutter = gElt;
        gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
      }
    }
    gutters.style.display = i ? "" : "none";
    updateGutterSpace(cm);
  }

  function updateGutterSpace(cm) {
    var width = cm.display.gutters.offsetWidth;
    cm.display.sizer.style.marginLeft = width + "px";
  }

  // Compute the character length of a line, taking into account
  // collapsed ranges (see markText) that might hide parts, and join
  // other lines onto it.
  function lineLength(line) {
    if (line.height == 0) return 0;
    var len = line.text.length, merged, cur = line;
    while (merged = collapsedSpanAtStart(cur)) {
      var found = merged.find(0, true);
      cur = found.from.line;
      len += found.from.ch - found.to.ch;
    }
    cur = line;
    while (merged = collapsedSpanAtEnd(cur)) {
      var found = merged.find(0, true);
      len -= cur.text.length - found.from.ch;
      cur = found.to.line;
      len += cur.text.length - found.to.ch;
    }
    return len;
  }

  // Find the longest line in the document.
  function findMaxLine(cm) {
    var d = cm.display, doc = cm.doc;
    d.maxLine = getLine(doc, doc.first);
    d.maxLineLength = lineLength(d.maxLine);
    d.maxLineChanged = true;
    doc.iter(function(line) {
      var len = lineLength(line);
      if (len > d.maxLineLength) {
        d.maxLineLength = len;
        d.maxLine = line;
      }
    });
  }

  // Make sure the gutters options contains the element
  // "CodeMirror-linenumbers" when the lineNumbers option is true.
  function setGuttersForLineNumbers(options) {
    var found = indexOf(options.gutters, "CodeMirror-linenumbers");
    if (found == -1 && options.lineNumbers) {
      options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
    } else if (found > -1 && !options.lineNumbers) {
      options.gutters = options.gutters.slice(0);
      options.gutters.splice(found, 1);
    }
  }

  // SCROLLBARS

  // Prepare DOM reads needed to update the scrollbars. Done in one
  // shot to minimize update/measure roundtrips.
  function measureForScrollbars(cm) {
    var d = cm.display, gutterW = d.gutters.offsetWidth;
    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
    return {
      clientHeight: d.scroller.clientHeight,
      viewHeight: d.wrapper.clientHeight,
      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
      viewWidth: d.wrapper.clientWidth,
      barLeft: cm.options.fixedGutter ? gutterW : 0,
      docHeight: docH,
      scrollHeight: docH + scrollGap(cm) + d.barHeight,
      nativeBarWidth: d.nativeBarWidth,
      gutterWidth: gutterW
    };
  }

  function NativeScrollbars(place, scroll, cm) {
    this.cm = cm;
    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
    place(vert); place(horiz);

    on(vert, "scroll", function() {
      if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
    });
    on(horiz, "scroll", function() {
      if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
    });

    this.checkedOverlay = false;
    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
    if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
  }

  NativeScrollbars.prototype = copyObj({
    update: function(measure) {
      var needsH = measure.scrollWidth > measure.clientWidth + 1;
      var needsV = measure.scrollHeight > measure.clientHeight + 1;
      var sWidth = measure.nativeBarWidth;

      if (needsV) {
        this.vert.style.display = "block";
        this.vert.style.bottom = needsH ? sWidth + "px" : "0";
        var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
        // A bug in IE8 can cause this value to be negative, so guard it.
        this.vert.firstChild.style.height =
          Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
      } else {
        this.vert.style.display = "";
        this.vert.firstChild.style.height = "0";
      }

      if (needsH) {
        this.horiz.style.display = "block";
        this.horiz.style.right = needsV ? sWidth + "px" : "0";
        this.horiz.style.left = measure.barLeft + "px";
        var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
        this.horiz.firstChild.style.width =
          (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
      } else {
        this.horiz.style.display = "";
        this.horiz.firstChild.style.width = "0";
      }

      if (!this.checkedOverlay && measure.clientHeight > 0) {
        if (sWidth == 0) this.overlayHack();
        this.checkedOverlay = true;
      }

      return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
    },
    setScrollLeft: function(pos) {
      if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
    },
    setScrollTop: function(pos) {
      if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
    },
    overlayHack: function() {
      var w = mac && !mac_geMountainLion ? "12px" : "18px";
      this.horiz.style.minHeight = this.vert.style.minWidth = w;
      var self = this;
      var barMouseDown = function(e) {
        if (e_target(e) != self.vert && e_target(e) != self.horiz)
          operation(self.cm, onMouseDown)(e);
      };
      on(this.vert, "mousedown", barMouseDown);
      on(this.horiz, "mousedown", barMouseDown);
    },
    clear: function() {
      var parent = this.horiz.parentNode;
      parent.removeChild(this.horiz);
      parent.removeChild(this.vert);
    }
  }, NativeScrollbars.prototype);

  function NullScrollbars() {}

  NullScrollbars.prototype = copyObj({
    update: function() { return {bottom: 0, right: 0}; },
    setScrollLeft: function() {},
    setScrollTop: function() {},
    clear: function() {}
  }, NullScrollbars.prototype);

  CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

  function initScrollbars(cm) {
    if (cm.display.scrollbars) {
      cm.display.scrollbars.clear();
      if (cm.display.scrollbars.addClass)
        rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
    }

    cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
      // Prevent clicks in the scrollbars from killing focus
      on(node, "mousedown", function() {
        if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
      });
      node.setAttribute("cm-not-content", "true");
    }, function(pos, axis) {
      if (axis == "horizontal") setScrollLeft(cm, pos);
      else setScrollTop(cm, pos);
    }, cm);
    if (cm.display.scrollbars.addClass)
      addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
  }

  function updateScrollbars(cm, measure) {
    if (!measure) measure = measureForScrollbars(cm);
    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
    updateScrollbarsInner(cm, measure);
    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
        updateHeightsInViewport(cm);
      updateScrollbarsInner(cm, measureForScrollbars(cm));
      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
    }
  }

  // Re-synchronize the fake scrollbars with the actual size of the
  // content.
  function updateScrollbarsInner(cm, measure) {
    var d = cm.display;
    var sizes = d.scrollbars.update(measure);

    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";

    if (sizes.right && sizes.bottom) {
      d.scrollbarFiller.style.display = "block";
      d.scrollbarFiller.style.height = sizes.bottom + "px";
      d.scrollbarFiller.style.width = sizes.right + "px";
    } else d.scrollbarFiller.style.display = "";
    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
      d.gutterFiller.style.display = "block";
      d.gutterFiller.style.height = sizes.bottom + "px";
      d.gutterFiller.style.width = measure.gutterWidth + "px";
    } else d.gutterFiller.style.display = "";
  }

  // Compute the lines that are visible in a given viewport (defaults
  // the the current scroll position). viewport may contain top,
  // height, and ensure (see op.scrollToPos) properties.
  function visibleLines(display, doc, viewport) {
    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
    top = Math.floor(top - paddingTop(display));
    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
    // forces those lines into the viewport (if possible).
    if (viewport && viewport.ensure) {
      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
      if (ensureFrom < from) {
        from = ensureFrom;
        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
        to = ensureTo;
      }
    }
    return {from: from, to: Math.max(to, from + 1)};
  }

  // LINE NUMBERS

  // Re-align line numbers and gutter marks to compensate for
  // horizontal scrolling.
  function alignHorizontally(cm) {
    var display = cm.display, view = display.view;
    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
    var gutterW = display.gutters.offsetWidth, left = comp + "px";
    for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
      if (cm.options.fixedGutter && view[i].gutter)
        view[i].gutter.style.left = left;
      var align = view[i].alignable;
      if (align) for (var j = 0; j < align.length; j++)
        align[j].style.left = left;
    }
    if (cm.options.fixedGutter)
      display.gutters.style.left = (comp + gutterW) + "px";
  }

  // Used to ensure that the line number gutter is still the right
  // size for the current document size. Returns true when an update
  // is needed.
  function maybeUpdateLineNumberWidth(cm) {
    if (!cm.options.lineNumbers) return false;
    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
    if (last.length != display.lineNumChars) {
      var test = display.measure.appendChild(elt("div", [elt("div", last)],
                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
      display.lineGutter.style.width = "";
      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
      display.lineNumWidth = display.lineNumInnerWidth + padding;
      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
      display.lineGutter.style.width = display.lineNumWidth + "px";
      updateGutterSpace(cm);
      return true;
    }
    return false;
  }

  function lineNumberFor(options, i) {
    return String(options.lineNumberFormatter(i + options.firstLineNumber));
  }

  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
  // but using getBoundingClientRect to get a sub-pixel-accurate
  // result.
  function compensateForHScroll(display) {
    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
  }

  // DISPLAY DRAWING

  function DisplayUpdate(cm, viewport, force) {
    var display = cm.display;

    this.viewport = viewport;
    // Store some values that we'll need later (but don't want to force a relayout for)
    this.visible = visibleLines(display, cm.doc, viewport);
    this.editorIsHidden = !display.wrapper.offsetWidth;
    this.wrapperHeight = display.wrapper.clientHeight;
    this.wrapperWidth = display.wrapper.clientWidth;
    this.oldDisplayWidth = displayWidth(cm);
    this.force = force;
    this.dims = getDimensions(cm);
    this.events = [];
  }

  DisplayUpdate.prototype.signal = function(emitter, type) {
    if (hasHandler(emitter, type))
      this.events.push(arguments);
  };
  DisplayUpdate.prototype.finish = function() {
    for (var i = 0; i < this.events.length; i++)
      signal.apply(null, this.events[i]);
  };

  function maybeClipScrollbars(cm) {
    var display = cm.display;
    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
      display.heightForcer.style.height = scrollGap(cm) + "px";
      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
      display.scrollbarsClipped = true;
    }
  }

  // Does the actual updating of the line display. Bails out
  // (returning false) when there is nothing to be done and forced is
  // false.
  function updateDisplayIfNeeded(cm, update) {
    var display = cm.display, doc = cm.doc;

    if (update.editorIsHidden) {
      resetView(cm);
      return false;
    }

    // Bail out if the visible area is already rendered and nothing changed.
    if (!update.force &&
        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
        display.renderedView == display.view && countDirtyView(cm) == 0)
      return false;

    if (maybeUpdateLineNumberWidth(cm)) {
      resetView(cm);
      update.dims = getDimensions(cm);
    }

    // Compute a suitable new viewport (from & to)
    var end = doc.first + doc.size;
    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
    if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
    if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
    if (sawCollapsedSpans) {
      from = visualLineNo(cm.doc, from);
      to = visualLineEndNo(cm.doc, to);
    }

    var different = from != display.viewFrom || to != display.viewTo ||
      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
    adjustView(cm, from, to);

    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
    // Position the mover div to align with the current scroll position
    cm.display.mover.style.top = display.viewOffset + "px";

    var toUpdate = countDirtyView(cm);
    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
      return false;

    // For big changes, we hide the enclosing element during the
    // update, since that speeds up the operations on most browsers.
    var focused = activeElt();
    if (toUpdate > 4) display.lineDiv.style.display = "none";
    patchDisplay(cm, display.updateLineNumbers, update.dims);
    if (toUpdate > 4) display.lineDiv.style.display = "";
    display.renderedView = display.view;
    // There might have been a widget with a focused element that got
    // hidden or updated, if so re-focus it.
    if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();

    // Prevent selection and cursors from interfering with the scroll
    // width and height.
    removeChildren(display.cursorDiv);
    removeChildren(display.selectionDiv);
    display.gutters.style.height = 0;

    if (different) {
      display.lastWrapHeight = update.wrapperHeight;
      display.lastWrapWidth = update.wrapperWidth;
      startWorker(cm, 400);
    }

    display.updateLineNumbers = null;

    return true;
  }

  function postUpdateDisplay(cm, update) {
    var viewport = update.viewport;
    for (var first = true;; first = false) {
      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
        // Clip forced viewport to actual scrollable area.
        if (viewport && viewport.top != null)
          viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
        // Updated line heights might result in the drawn area not
        // actually covering the viewport. Keep looping until it does.
        update.visible = visibleLines(cm.display, cm.doc, viewport);
        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
          break;
      }
      if (!updateDisplayIfNeeded(cm, update)) break;
      updateHeightsInViewport(cm);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      setDocumentHeight(cm, barMeasure);
      updateScrollbars(cm, barMeasure);
    }

    update.signal(cm, "update", cm);
    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
    }
  }

  function updateDisplaySimple(cm, viewport) {
    var update = new DisplayUpdate(cm, viewport);
    if (updateDisplayIfNeeded(cm, update)) {
      updateHeightsInViewport(cm);
      postUpdateDisplay(cm, update);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      setDocumentHeight(cm, barMeasure);
      updateScrollbars(cm, barMeasure);
      update.finish();
    }
  }

  function setDocumentHeight(cm, measure) {
    cm.display.sizer.style.minHeight = measure.docHeight + "px";
    var total = measure.docHeight + cm.display.barHeight;
    cm.display.heightForcer.style.top = total + "px";
    cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
  }

  // Read the actual heights of the rendered lines, and update their
  // stored heights to match.
  function updateHeightsInViewport(cm) {
    var display = cm.display;
    var prevBottom = display.lineDiv.offsetTop;
    for (var i = 0; i < display.view.length; i++) {
      var cur = display.view[i], height;
      if (cur.hidden) continue;
      if (ie && ie_version < 8) {
        var bot = cur.node.offsetTop + cur.node.offsetHeight;
        height = bot - prevBottom;
        prevBottom = bot;
      } else {
        var box = cur.node.getBoundingClientRect();
        height = box.bottom - box.top;
      }
      var diff = cur.line.height - height;
      if (height < 2) height = textHeight(display);
      if (diff > .001 || diff < -.001) {
        updateLineHeight(cur.line, height);
        updateWidgetHeight(cur.line);
        if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
          updateWidgetHeight(cur.rest[j]);
      }
    }
  }

  // Read and store the height of line widgets associated with the
  // given line.
  function updateWidgetHeight(line) {
    if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
      line.widgets[i].height = line.widgets[i].node.offsetHeight;
  }

  // Do a bulk-read of the DOM positions and sizes needed to draw the
  // view, so that we don't interleave reading and writing to the DOM.
  function getDimensions(cm) {
    var d = cm.display, left = {}, width = {};
    var gutterLeft = d.gutters.clientLeft;
    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
      left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
      width[cm.options.gutters[i]] = n.clientWidth;
    }
    return {fixedPos: compensateForHScroll(d),
            gutterTotalWidth: d.gutters.offsetWidth,
            gutterLeft: left,
            gutterWidth: width,
            wrapperWidth: d.wrapper.clientWidth};
  }

  // Sync the actual display DOM structure with display.view, removing
  // nodes for lines that are no longer in view, and creating the ones
  // that are not there yet, and updating the ones that are out of
  // date.
  function patchDisplay(cm, updateNumbersFrom, dims) {
    var display = cm.display, lineNumbers = cm.options.lineNumbers;
    var container = display.lineDiv, cur = container.firstChild;

    function rm(node) {
      var next = node.nextSibling;
      // Works around a throw-scroll bug in OS X Webkit
      if (webkit && mac && cm.display.currentWheelTarget == node)
        node.style.display = "none";
      else
        node.parentNode.removeChild(node);
      return next;
    }

    var view = display.view, lineN = display.viewFrom;
    // Loop over the elements in the view, syncing cur (the DOM nodes
    // in display.lineDiv) with the view as we go.
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (lineView.hidden) {
      } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
        var node = buildLineElement(cm, lineView, lineN, dims);
        container.insertBefore(node, cur);
      } else { // Already drawn
        while (cur != lineView.node) cur = rm(cur);
        var updateNumber = lineNumbers && updateNumbersFrom != null &&
          updateNumbersFrom <= lineN && lineView.lineNumber;
        if (lineView.changes) {
          if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
          updateLineForChanges(cm, lineView, lineN, dims);
        }
        if (updateNumber) {
          removeChildren(lineView.lineNumber);
          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
        }
        cur = lineView.node.nextSibling;
      }
      lineN += lineView.size;
    }
    while (cur) cur = rm(cur);
  }

  // When an aspect of a line changes, a string is added to
  // lineView.changes. This updates the relevant part of the line's
  // DOM structure.
  function updateLineForChanges(cm, lineView, lineN, dims) {
    for (var j = 0; j < lineView.changes.length; j++) {
      var type = lineView.changes[j];
      if (type == "text") updateLineText(cm, lineView);
      else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
      else if (type == "class") updateLineClasses(lineView);
      else if (type == "widget") updateLineWidgets(cm, lineView, dims);
    }
    lineView.changes = null;
  }

  // Lines with gutter elements, widgets or a background class need to
  // be wrapped, and have the extra elements added to the wrapper div
  function ensureLineWrapped(lineView) {
    if (lineView.node == lineView.text) {
      lineView.node = elt("div", null, null, "position: relative");
      if (lineView.text.parentNode)
        lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
      lineView.node.appendChild(lineView.text);
      if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
    }
    return lineView.node;
  }

  function updateLineBackground(lineView) {
    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
    if (cls) cls += " CodeMirror-linebackground";
    if (lineView.background) {
      if (cls) lineView.background.className = cls;
      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
    } else if (cls) {
      var wrap = ensureLineWrapped(lineView);
      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
    }
  }

  // Wrapper around buildLineContent which will reuse the structure
  // in display.externalMeasured when possible.
  function getLineContent(cm, lineView) {
    var ext = cm.display.externalMeasured;
    if (ext && ext.line == lineView.line) {
      cm.display.externalMeasured = null;
      lineView.measure = ext.measure;
      return ext.built;
    }
    return buildLineContent(cm, lineView);
  }

  // Redraw the line's text. Interacts with the background and text
  // classes because the mode may output tokens that influence these
  // classes.
  function updateLineText(cm, lineView) {
    var cls = lineView.text.className;
    var built = getLineContent(cm, lineView);
    if (lineView.text == lineView.node) lineView.node = built.pre;
    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
    lineView.text = built.pre;
    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
      lineView.bgClass = built.bgClass;
      lineView.textClass = built.textClass;
      updateLineClasses(lineView);
    } else if (cls) {
      lineView.text.className = cls;
    }
  }

  function updateLineClasses(lineView) {
    updateLineBackground(lineView);
    if (lineView.line.wrapClass)
      ensureLineWrapped(lineView).className = lineView.line.wrapClass;
    else if (lineView.node != lineView.text)
      lineView.node.className = "";
    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
    lineView.text.className = textClass || "";
  }

  function updateLineGutter(cm, lineView, lineN, dims) {
    if (lineView.gutter) {
      lineView.node.removeChild(lineView.gutter);
      lineView.gutter = null;
    }
    var markers = lineView.line.gutterMarkers;
    if (cm.options.lineNumbers || markers) {
      var wrap = ensureLineWrapped(lineView);
      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
                                             (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
                                             "px; width: " + dims.gutterTotalWidth + "px");
      cm.display.input.setUneditable(gutterWrap);
      wrap.insertBefore(gutterWrap, lineView.text);
      if (lineView.line.gutterClass)
        gutterWrap.className += " " + lineView.line.gutterClass;
      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
        lineView.lineNumber = gutterWrap.appendChild(
          elt("div", lineNumberFor(cm.options, lineN),
              "CodeMirror-linenumber CodeMirror-gutter-elt",
              "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
              + cm.display.lineNumInnerWidth + "px"));
      if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
        var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
        if (found)
          gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
                                     dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
      }
    }
  }

  function updateLineWidgets(cm, lineView, dims) {
    if (lineView.alignable) lineView.alignable = null;
    for (var node = lineView.node.firstChild, next; node; node = next) {
      var next = node.nextSibling;
      if (node.className == "CodeMirror-linewidget")
        lineView.node.removeChild(node);
    }
    insertLineWidgets(cm, lineView, dims);
  }

  // Build a line's DOM representation from scratch
  function buildLineElement(cm, lineView, lineN, dims) {
    var built = getLineContent(cm, lineView);
    lineView.text = lineView.node = built.pre;
    if (built.bgClass) lineView.bgClass = built.bgClass;
    if (built.textClass) lineView.textClass = built.textClass;

    updateLineClasses(lineView);
    updateLineGutter(cm, lineView, lineN, dims);
    insertLineWidgets(cm, lineView, dims);
    return lineView.node;
  }

  // A lineView may contain multiple logical lines (when merged by
  // collapsed spans). The widgets for all of them need to be drawn.
  function insertLineWidgets(cm, lineView, dims) {
    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
    if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
      insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
  }

  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
    if (!line.widgets) return;
    var wrap = ensureLineWrapped(lineView);
    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
      if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
      positionLineWidget(widget, node, lineView, dims);
      cm.display.input.setUneditable(node);
      if (allowAbove && widget.above)
        wrap.insertBefore(node, lineView.gutter || lineView.text);
      else
        wrap.appendChild(node);
      signalLater(widget, "redraw");
    }
  }

  function positionLineWidget(widget, node, lineView, dims) {
    if (widget.noHScroll) {
      (lineView.alignable || (lineView.alignable = [])).push(node);
      var width = dims.wrapperWidth;
      node.style.left = dims.fixedPos + "px";
      if (!widget.coverGutter) {
        width -= dims.gutterTotalWidth;
        node.style.paddingLeft = dims.gutterTotalWidth + "px";
      }
      node.style.width = width + "px";
    }
    if (widget.coverGutter) {
      node.style.zIndex = 5;
      node.style.position = "relative";
      if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
    }
  }

  // POSITION OBJECT

  // A Pos instance represents a position within the text.
  var Pos = CodeMirror.Pos = function(line, ch) {
    if (!(this instanceof Pos)) return new Pos(line, ch);
    this.line = line; this.ch = ch;
  };

  // Compare two positions, return 0 if they are the same, a negative
  // number when a is less, and a positive number otherwise.
  var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };

  function copyPos(x) {return Pos(x.line, x.ch);}
  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
  function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }

  // INPUT HANDLING

  function ensureFocus(cm) {
    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
  }

  function isReadOnly(cm) {
    return cm.options.readOnly || cm.doc.cantEdit;
  }

  // This will be set to an array of strings when copying, so that,
  // when pasting, we know what kind of selections the copied text
  // was made out of.
  var lastCopied = null;

  function applyTextInput(cm, inserted, deleted, sel, origin) {
    var doc = cm.doc;
    cm.display.shift = false;
    if (!sel) sel = doc.sel;

    var paste = cm.state.pasteIncoming || origin == "paste";
    var textLines = splitLines(inserted), multiPaste = null;
    // When pasing N lines into N selections, insert one line per selection
    if (paste && sel.ranges.length > 1) {
      if (lastCopied && lastCopied.join("\n") == inserted)
        multiPaste = sel.ranges.length % lastCopied.length == 0 && map(lastCopied, splitLines);
      else if (textLines.length == sel.ranges.length)
        multiPaste = map(textLines, function(l) { return [l]; });
    }

    // Normal behavior is to insert the new text into every selection
    for (var i = sel.ranges.length - 1; i >= 0; i--) {
      var range = sel.ranges[i];
      var from = range.from(), to = range.to();
      if (range.empty()) {
        if (deleted && deleted > 0) // Handle deletion
          from = Pos(from.line, from.ch - deleted);
        else if (cm.state.overwrite && !paste) // Handle overwrite
          to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
      }
      var updateInput = cm.curOp.updateInput;
      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
                         origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
      makeChange(cm.doc, changeEvent);
      signalLater(cm, "inputRead", cm, changeEvent);
    }
    if (inserted && !paste)
      triggerElectric(cm, inserted);

    ensureCursorVisible(cm);
    cm.curOp.updateInput = updateInput;
    cm.curOp.typing = true;
    cm.state.pasteIncoming = cm.state.cutIncoming = false;
  }

  function handlePaste(e, cm) {
    var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
    if (pasted) {
      e.preventDefault();
      runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
      return true;
    }
  }

  function triggerElectric(cm, inserted) {
    // When an 'electric' character is inserted, immediately trigger a reindent
    if (!cm.options.electricChars || !cm.options.smartIndent) return;
    var sel = cm.doc.sel;

    for (var i = sel.ranges.length - 1; i >= 0; i--) {
      var range = sel.ranges[i];
      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
      var mode = cm.getModeAt(range.head);
      var indented = false;
      if (mode.electricChars) {
        for (var j = 0; j < mode.electricChars.length; j++)
          if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
            indented = indentLine(cm, range.head.line, "smart");
            break;
          }
      } else if (mode.electricInput) {
        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
          indented = indentLine(cm, range.head.line, "smart");
      }
      if (indented) signalLater(cm, "electricInput", cm, range.head.line);
    }
  }

  function copyableRanges(cm) {
    var text = [], ranges = [];
    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
      var line = cm.doc.sel.ranges[i].head.line;
      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
      ranges.push(lineRange);
      text.push(cm.getRange(lineRange.anchor, lineRange.head));
    }
    return {text: text, ranges: ranges};
  }

  function disableBrowserMagic(field) {
    field.setAttribute("autocorrect", "off");
    field.setAttribute("autocapitalize", "off");
    field.setAttribute("spellcheck", "false");
  }

  // TEXTAREA INPUT STYLE

  function TextareaInput(cm) {
    this.cm = cm;
    // See input.poll and input.reset
    this.prevInput = "";

    // Flag that indicates whether we expect input to appear real soon
    // now (after some event like 'keypress' or 'input') and are
    // polling intensively.
    this.pollingFast = false;
    // Self-resetting timeout for the poller
    this.polling = new Delayed();
    // Tracks when input.reset has punted to just putting a short
    // string into the textarea instead of the full selection.
    this.inaccurateSelection = false;
    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
    this.hasSelection = false;
    this.composing = null;
  };

  function hiddenTextarea() {
    var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
    // The textarea is kept positioned near the cursor to prevent the
    // fact that it'll be scrolled into view on input from scrolling
    // our fake cursor out of view. On webkit, when wrap=off, paste is
    // very slow. So make the area wide instead.
    if (webkit) te.style.width = "1000px";
    else te.setAttribute("wrap", "off");
    // If border: 0; -- iOS fails to open keyboard (issue #1287)
    if (ios) te.style.border = "1px solid black";
    disableBrowserMagic(te);
    return div;
  }

  TextareaInput.prototype = copyObj({
    init: function(display) {
      var input = this, cm = this.cm;

      // Wraps and hides input textarea
      var div = this.wrapper = hiddenTextarea();
      // The semihidden textarea that is focused when the editor is
      // focused, and receives input.
      var te = this.textarea = div.firstChild;
      display.wrapper.insertBefore(div, display.wrapper.firstChild);

      // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
      if (ios) te.style.width = "0px";

      on(te, "input", function() {
        if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
        input.poll();
      });

      on(te, "paste", function(e) {
        if (handlePaste(e, cm)) return true;

        cm.state.pasteIncoming = true;
        input.fastPoll();
      });

      function prepareCopyCut(e) {
        if (cm.somethingSelected()) {
          lastCopied = cm.getSelections();
          if (input.inaccurateSelection) {
            input.prevInput = "";
            input.inaccurateSelection = false;
            te.value = lastCopied.join("\n");
            selectInput(te);
          }
        } else if (!cm.options.lineWiseCopyCut) {
          return;
        } else {
          var ranges = copyableRanges(cm);
          lastCopied = ranges.text;
          if (e.type == "cut") {
            cm.setSelections(ranges.ranges, null, sel_dontScroll);
          } else {
            input.prevInput = "";
            te.value = ranges.text.join("\n");
            selectInput(te);
          }
        }
        if (e.type == "cut") cm.state.cutIncoming = true;
      }
      on(te, "cut", prepareCopyCut);
      on(te, "copy", prepareCopyCut);

      on(display.scroller, "paste", function(e) {
        if (eventInWidget(display, e)) return;
        cm.state.pasteIncoming = true;
        input.focus();
      });

      // Prevent normal selection in the editor (we handle our own)
      on(display.lineSpace, "selectstart", function(e) {
        if (!eventInWidget(display, e)) e_preventDefault(e);
      });

      on(te, "compositionstart", function() {
        var start = cm.getCursor("from");
        input.composing = {
          start: start,
          range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
        };
      });
      on(te, "compositionend", function() {
        if (input.composing) {
          input.poll();
          input.composing.range.clear();
          input.composing = null;
        }
      });
    },

    prepareSelection: function() {
      // Redraw the selection and/or cursor
      var cm = this.cm, display = cm.display, doc = cm.doc;
      var result = prepareSelection(cm);

      // Move the hidden textarea near the cursor to prevent scrolling artifacts
      if (cm.options.moveInputWithCursor) {
        var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
        var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
        result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
                                            headPos.top + lineOff.top - wrapOff.top));
        result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
                                             headPos.left + lineOff.left - wrapOff.left));
      }

      return result;
    },

    showSelection: function(drawn) {
      var cm = this.cm, display = cm.display;
      removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
      removeChildrenAndAdd(display.selectionDiv, drawn.selection);
      if (drawn.teTop != null) {
        this.wrapper.style.top = drawn.teTop + "px";
        this.wrapper.style.left = drawn.teLeft + "px";
      }
    },

    // Reset the input to correspond to the selection (or to be empty,
    // when not typing and nothing is selected)
    reset: function(typing) {
      if (this.contextMenuPending) return;
      var minimal, selected, cm = this.cm, doc = cm.doc;
      if (cm.somethingSelected()) {
        this.prevInput = "";
        var range = doc.sel.primary();
        minimal = hasCopyEvent &&
          (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
        var content = minimal ? "-" : selected || cm.getSelection();
        this.textarea.value = content;
        if (cm.state.focused) selectInput(this.textarea);
        if (ie && ie_version >= 9) this.hasSelection = content;
      } else if (!typing) {
        this.prevInput = this.textarea.value = "";
        if (ie && ie_version >= 9) this.hasSelection = null;
      }
      this.inaccurateSelection = minimal;
    },

    getField: function() { return this.textarea; },

    supportsTouch: function() { return false; },

    focus: function() {
      if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
        try { this.textarea.focus(); }
        catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
      }
    },

    blur: function() { this.textarea.blur(); },

    resetPosition: function() {
      this.wrapper.style.top = this.wrapper.style.left = 0;
    },

    receivedFocus: function() { this.slowPoll(); },

    // Poll for input changes, using the normal rate of polling. This
    // runs as long as the editor is focused.
    slowPoll: function() {
      var input = this;
      if (input.pollingFast) return;
      input.polling.set(this.cm.options.pollInterval, function() {
        input.poll();
        if (input.cm.state.focused) input.slowPoll();
      });
    },

    // When an event has just come in that is likely to add or change
    // something in the input textarea, we poll faster, to ensure that
    // the change appears on the screen quickly.
    fastPoll: function() {
      var missed = false, input = this;
      input.pollingFast = true;
      function p() {
        var changed = input.poll();
        if (!changed && !missed) {missed = true; input.polling.set(60, p);}
        else {input.pollingFast = false; input.slowPoll();}
      }
      input.polling.set(20, p);
    },

    // Read input from the textarea, and update the document to match.
    // When something is selected, it is present in the textarea, and
    // selected (unless it is huge, in which case a placeholder is
    // used). When nothing is selected, the cursor sits after previously
    // seen text (can be empty), which is stored in prevInput (we must
    // not reset the textarea when typing, because that breaks IME).
    poll: function() {
      var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
      // Since this is called a *lot*, try to bail out as cheaply as
      // possible when it is clear that nothing happened. hasSelection
      // will be the case when there is a lot of text in the textarea,
      // in which case reading its value would be expensive.
      if (this.contextMenuPending || !cm.state.focused ||
          (hasSelection(input) && !prevInput) ||
          isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)
        return false;

      var text = input.value;
      // If nothing changed, bail.
      if (text == prevInput && !cm.somethingSelected()) return false;
      // Work around nonsensical selection resetting in IE9/10, and
      // inexplicable appearance of private area unicode characters on
      // some key combos in Mac (#2689).
      if (ie && ie_version >= 9 && this.hasSelection === text ||
          mac && /[\uf700-\uf7ff]/.test(text)) {
        cm.display.input.reset();
        return false;
      }

      if (cm.doc.sel == cm.display.selForContextMenu) {
        var first = text.charCodeAt(0);
        if (first == 0x200b && !prevInput) prevInput = "\u200b";
        if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
      }
      // Find the part of the input that is actually new
      var same = 0, l = Math.min(prevInput.length, text.length);
      while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;

      var self = this;
      runInOp(cm, function() {
        applyTextInput(cm, text.slice(same), prevInput.length - same,
                       null, self.composing ? "*compose" : null);

        // Don't leave long text in the textarea, since it makes further polling slow
        if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
        else self.prevInput = text;

        if (self.composing) {
          self.composing.range.clear();
          self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
                                             {className: "CodeMirror-composing"});
        }
      });
      return true;
    },

    ensurePolled: function() {
      if (this.pollingFast && this.poll()) this.pollingFast = false;
    },

    onKeyPress: function() {
      if (ie && ie_version >= 9) this.hasSelection = null;
      this.fastPoll();
    },

    onContextMenu: function(e) {
      var input = this, cm = input.cm, display = cm.display, te = input.textarea;
      var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
      if (!pos || presto) return; // Opera is difficult.

      // Reset the current text selection only if the click is done outside of the selection
      // and 'resetSelectionOnContextMenu' option is true.
      var reset = cm.options.resetSelectionOnContextMenu;
      if (reset && cm.doc.sel.contains(pos) == -1)
        operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);

      var oldCSS = te.style.cssText;
      input.wrapper.style.position = "absolute";
      te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
        "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
        (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
        "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
      if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
      display.input.focus();
      if (webkit) window.scrollTo(null, oldScrollY);
      display.input.reset();
      // Adds "Select all" to context menu in FF
      if (!cm.somethingSelected()) te.value = input.prevInput = " ";
      input.contextMenuPending = true;
      display.selForContextMenu = cm.doc.sel;
      clearTimeout(display.detectingSelectAll);

      // Select-all will be greyed out if there's nothing to select, so
      // this adds a zero-width space so that we can later check whether
      // it got selected.
      function prepareSelectAllHack() {
        if (te.selectionStart != null) {
          var selected = cm.somethingSelected();
          var extval = "\u200b" + (selected ? te.value : "");
          te.value = "\u21da"; // Used to catch context-menu undo
          te.value = extval;
          input.prevInput = selected ? "" : "\u200b";
          te.selectionStart = 1; te.selectionEnd = extval.length;
          // Re-set this, in case some other handler touched the
          // selection in the meantime.
          display.selForContextMenu = cm.doc.sel;
        }
      }
      function rehide() {
        input.contextMenuPending = false;
        input.wrapper.style.position = "relative";
        te.style.cssText = oldCSS;
        if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);

        // Try to detect the user choosing select-all
        if (te.selectionStart != null) {
          if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
          var i = 0, poll = function() {
            if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
                te.selectionEnd > 0 && input.prevInput == "\u200b")
              operation(cm, commands.selectAll)(cm);
            else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
            else display.input.reset();
          };
          display.detectingSelectAll = setTimeout(poll, 200);
        }
      }

      if (ie && ie_version >= 9) prepareSelectAllHack();
      if (captureRightClick) {
        e_stop(e);
        var mouseup = function() {
          off(window, "mouseup", mouseup);
          setTimeout(rehide, 20);
        };
        on(window, "mouseup", mouseup);
      } else {
        setTimeout(rehide, 50);
      }
    },

    setUneditable: nothing,

    needsContentAttribute: false
  }, TextareaInput.prototype);

  // CONTENTEDITABLE INPUT STYLE

  function ContentEditableInput(cm) {
    this.cm = cm;
    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
    this.polling = new Delayed();
    this.gracePeriod = false;
  }

  ContentEditableInput.prototype = copyObj({
    init: function(display) {
      var input = this, cm = input.cm;
      var div = input.div = display.lineDiv;
      div.contentEditable = "true";
      disableBrowserMagic(div);

      on(div, "paste", function(e) { handlePaste(e, cm); })

      on(div, "compositionstart", function(e) {
        var data = e.data;
        input.composing = {sel: cm.doc.sel, data: data, startData: data};
        if (!data) return;
        var prim = cm.doc.sel.primary();
        var line = cm.getLine(prim.head.line);
        var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
        if (found > -1 && found <= prim.head.ch)
          input.composing.sel = simpleSelection(Pos(prim.head.line, found),
                                                Pos(prim.head.line, found + data.length));
      });
      on(div, "compositionupdate", function(e) {
        input.composing.data = e.data;
      });
      on(div, "compositionend", function(e) {
        var ours = input.composing;
        if (!ours) return;
        if (e.data != ours.startData && !/\u200b/.test(e.data))
          ours.data = e.data;
        // Need a small delay to prevent other code (input event,
        // selection polling) from doing damage when fired right after
        // compositionend.
        setTimeout(function() {
          if (!ours.handled)
            input.applyComposition(ours);
          if (input.composing == ours)
            input.composing = null;
        }, 50);
      });

      on(div, "touchstart", function() {
        input.forceCompositionEnd();
      });

      on(div, "input", function() {
        if (input.composing) return;
        if (!input.pollContent())
          runInOp(input.cm, function() {regChange(cm);});
      });

      function onCopyCut(e) {
        if (cm.somethingSelected()) {
          lastCopied = cm.getSelections();
          if (e.type == "cut") cm.replaceSelection("", null, "cut");
        } else if (!cm.options.lineWiseCopyCut) {
          return;
        } else {
          var ranges = copyableRanges(cm);
          lastCopied = ranges.text;
          if (e.type == "cut") {
            cm.operation(function() {
              cm.setSelections(ranges.ranges, 0, sel_dontScroll);
              cm.replaceSelection("", null, "cut");
            });
          }
        }
        // iOS exposes the clipboard API, but seems to discard content inserted into it
        if (e.clipboardData && !ios) {
          e.preventDefault();
          e.clipboardData.clearData();
          e.clipboardData.setData("text/plain", lastCopied.join("\n"));
        } else {
          // Old-fashioned briefly-focus-a-textarea hack
          var kludge = hiddenTextarea(), te = kludge.firstChild;
          cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
          te.value = lastCopied.join("\n");
          var hadFocus = document.activeElement;
          selectInput(te);
          setTimeout(function() {
            cm.display.lineSpace.removeChild(kludge);
            hadFocus.focus();
          }, 50);
        }
      }
      on(div, "copy", onCopyCut);
      on(div, "cut", onCopyCut);
    },

    prepareSelection: function() {
      var result = prepareSelection(this.cm, false);
      result.focus = this.cm.state.focused;
      return result;
    },

    showSelection: function(info) {
      if (!info || !this.cm.display.view.length) return;
      if (info.focus) this.showPrimarySelection();
      this.showMultipleSelections(info);
    },

    showPrimarySelection: function() {
      var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
      var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
      var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
      if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
          cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
          cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
        return;

      var start = posToDOM(this.cm, prim.from());
      var end = posToDOM(this.cm, prim.to());
      if (!start && !end) return;

      var view = this.cm.display.view;
      var old = sel.rangeCount && sel.getRangeAt(0);
      if (!start) {
        start = {node: view[0].measure.map[2], offset: 0};
      } else if (!end) { // FIXME dangerously hacky
        var measure = view[view.length - 1].measure;
        var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
        end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
      }

      try { var rng = range(start.node, start.offset, end.offset, end.node); }
      catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
      if (rng) {
        sel.removeAllRanges();
        sel.addRange(rng);
        if (old && sel.anchorNode == null) sel.addRange(old);
        else if (gecko) this.startGracePeriod();
      }
      this.rememberSelection();
    },

    startGracePeriod: function() {
      var input = this;
      clearTimeout(this.gracePeriod);
      this.gracePeriod = setTimeout(function() {
        input.gracePeriod = false;
        if (input.selectionChanged())
          input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
      }, 20);
    },

    showMultipleSelections: function(info) {
      removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
      removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
    },

    rememberSelection: function() {
      var sel = window.getSelection();
      this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
      this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
    },

    selectionInEditor: function() {
      var sel = window.getSelection();
      if (!sel.rangeCount) return false;
      var node = sel.getRangeAt(0).commonAncestorContainer;
      return contains(this.div, node);
    },

    focus: function() {
      if (this.cm.options.readOnly != "nocursor") this.div.focus();
    },
    blur: function() { this.div.blur(); },
    getField: function() { return this.div; },

    supportsTouch: function() { return true; },

    receivedFocus: function() {
      var input = this;
      if (this.selectionInEditor())
        this.pollSelection();
      else
        runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });

      function poll() {
        if (input.cm.state.focused) {
          input.pollSelection();
          input.polling.set(input.cm.options.pollInterval, poll);
        }
      }
      this.polling.set(this.cm.options.pollInterval, poll);
    },

    selectionChanged: function() {
      var sel = window.getSelection();
      return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
        sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
    },

    pollSelection: function() {
      if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
        var sel = window.getSelection(), cm = this.cm;
        this.rememberSelection();
        var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
        var head = domToPos(cm, sel.focusNode, sel.focusOffset);
        if (anchor && head) runInOp(cm, function() {
          setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
          if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
        });
      }
    },

    pollContent: function() {
      var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
      var from = sel.from(), to = sel.to();
      if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;

      var fromIndex;
      if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
        var fromLine = lineNo(display.view[0].line);
        var fromNode = display.view[0].node;
      } else {
        var fromLine = lineNo(display.view[fromIndex].line);
        var fromNode = display.view[fromIndex - 1].node.nextSibling;
      }
      var toIndex = findViewIndex(cm, to.line);
      if (toIndex == display.view.length - 1) {
        var toLine = display.viewTo - 1;
        var toNode = display.lineDiv.lastChild;
      } else {
        var toLine = lineNo(display.view[toIndex + 1].line) - 1;
        var toNode = display.view[toIndex + 1].node.previousSibling;
      }

      var newText = splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
      var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
      while (newText.length > 1 && oldText.length > 1) {
        if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
        else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
        else break;
      }

      var cutFront = 0, cutEnd = 0;
      var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
      while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
        ++cutFront;
      var newBot = lst(newText), oldBot = lst(oldText);
      var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
                               oldBot.length - (oldText.length == 1 ? cutFront : 0));
      while (cutEnd < maxCutEnd &&
             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
        ++cutEnd;

      newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
      newText[0] = newText[0].slice(cutFront);

      var chFrom = Pos(fromLine, cutFront);
      var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
      if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
        replaceRange(cm.doc, newText, chFrom, chTo, "+input");
        return true;
      }
    },

    ensurePolled: function() {
      this.forceCompositionEnd();
    },
    reset: function() {
      this.forceCompositionEnd();
    },
    forceCompositionEnd: function() {
      if (!this.composing || this.composing.handled) return;
      this.applyComposition(this.composing);
      this.composing.handled = true;
      this.div.blur();
      this.div.focus();
    },
    applyComposition: function(composing) {
      if (composing.data && composing.data != composing.startData)
        operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
    },

    setUneditable: function(node) {
      node.setAttribute("contenteditable", "false");
    },

    onKeyPress: function(e) {
      e.preventDefault();
      operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
    },

    onContextMenu: nothing,
    resetPosition: nothing,

    needsContentAttribute: true
  }, ContentEditableInput.prototype);

  function posToDOM(cm, pos) {
    var view = findViewForLine(cm, pos.line);
    if (!view || view.hidden) return null;
    var line = getLine(cm.doc, pos.line);
    var info = mapFromLineView(view, line, pos.line);

    var order = getOrder(line), side = "left";
    if (order) {
      var partPos = getBidiPartAt(order, pos.ch);
      side = partPos % 2 ? "right" : "left";
    }
    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
    result.offset = result.collapse == "right" ? result.end : result.start;
    return result;
  }

  function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }

  function domToPos(cm, node, offset) {
    var lineNode;
    if (node == cm.display.lineDiv) {
      lineNode = cm.display.lineDiv.childNodes[offset];
      if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
      node = null; offset = 0;
    } else {
      for (lineNode = node;; lineNode = lineNode.parentNode) {
        if (!lineNode || lineNode == cm.display.lineDiv) return null;
        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
      }
    }
    for (var i = 0; i < cm.display.view.length; i++) {
      var lineView = cm.display.view[i];
      if (lineView.node == lineNode)
        return locateNodeInLineView(lineView, node, offset);
    }
  }

  function locateNodeInLineView(lineView, node, offset) {
    var wrapper = lineView.text.firstChild, bad = false;
    if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
    if (node == wrapper) {
      bad = true;
      node = wrapper.childNodes[offset];
      offset = 0;
      if (!node) {
        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
        return badPos(Pos(lineNo(line), line.text.length), bad);
      }
    }

    var textNode = node.nodeType == 3 ? node : null, topNode = node;
    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
      textNode = node.firstChild;
      if (offset) offset = textNode.nodeValue.length;
    }
    while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
    var measure = lineView.measure, maps = measure.maps;

    function find(textNode, topNode, offset) {
      for (var i = -1; i < (maps ? maps.length : 0); i++) {
        var map = i < 0 ? measure.map : maps[i];
        for (var j = 0; j < map.length; j += 3) {
          var curNode = map[j + 2];
          if (curNode == textNode || curNode == topNode) {
            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
            var ch = map[j] + offset;
            if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
            return Pos(line, ch);
          }
        }
      }
    }
    var found = find(textNode, topNode, offset);
    if (found) return badPos(found, bad);

    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
      found = find(after, after.firstChild, 0);
      if (found)
        return badPos(Pos(found.line, found.ch - dist), bad);
      else
        dist += after.textContent.length;
    }
    for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
      found = find(before, before.firstChild, -1);
      if (found)
        return badPos(Pos(found.line, found.ch + dist), bad);
      else
        dist += after.textContent.length;
    }
  }

  function domTextBetween(cm, from, to, fromLine, toLine) {
    var text = "", closing = false;
    function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
    function walk(node) {
      if (node.nodeType == 1) {
        var cmText = node.getAttribute("cm-text");
        if (cmText != null) {
          if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
          text += cmText;
          return;
        }
        var markerID = node.getAttribute("cm-marker"), range;
        if (markerID) {
          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
          if (found.length && (range = found[0].find()))
            text += getBetween(cm.doc, range.from, range.to).join("\n");
          return;
        }
        if (node.getAttribute("contenteditable") == "false") return;
        for (var i = 0; i < node.childNodes.length; i++)
          walk(node.childNodes[i]);
        if (/^(pre|div|p)$/i.test(node.nodeName))
          closing = true;
      } else if (node.nodeType == 3) {
        var val = node.nodeValue;
        if (!val) return;
        if (closing) {
          text += "\n";
          closing = false;
        }
        text += val;
      }
    }
    for (;;) {
      walk(from);
      if (from == to) break;
      from = from.nextSibling;
    }
    return text;
  }

  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

  // SELECTION / CURSOR

  // Selection objects are immutable. A new one is created every time
  // the selection changes. A selection is one or more non-overlapping
  // (and non-touching) ranges, sorted, and an integer that indicates
  // which one is the primary selection (the one that's scrolled into
  // view, that getCursor returns, etc).
  function Selection(ranges, primIndex) {
    this.ranges = ranges;
    this.primIndex = primIndex;
  }

  Selection.prototype = {
    primary: function() { return this.ranges[this.primIndex]; },
    equals: function(other) {
      if (other == this) return true;
      if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
      for (var i = 0; i < this.ranges.length; i++) {
        var here = this.ranges[i], there = other.ranges[i];
        if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
      }
      return true;
    },
    deepCopy: function() {
      for (var out = [], i = 0; i < this.ranges.length; i++)
        out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
      return new Selection(out, this.primIndex);
    },
    somethingSelected: function() {
      for (var i = 0; i < this.ranges.length; i++)
        if (!this.ranges[i].empty()) return true;
      return false;
    },
    contains: function(pos, end) {
      if (!end) end = pos;
      for (var i = 0; i < this.ranges.length; i++) {
        var range = this.ranges[i];
        if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
          return i;
      }
      return -1;
    }
  };

  function Range(anchor, head) {
    this.anchor = anchor; this.head = head;
  }

  Range.prototype = {
    from: function() { return minPos(this.anchor, this.head); },
    to: function() { return maxPos(this.anchor, this.head); },
    empty: function() {
      return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
    }
  };

  // Take an unsorted, potentially overlapping set of ranges, and
  // build a selection out of it. 'Consumes' ranges array (modifying
  // it).
  function normalizeSelection(ranges, primIndex) {
    var prim = ranges[primIndex];
    ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
    primIndex = indexOf(ranges, prim);
    for (var i = 1; i < ranges.length; i++) {
      var cur = ranges[i], prev = ranges[i - 1];
      if (cmp(prev.to(), cur.from()) >= 0) {
        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
        if (i <= primIndex) --primIndex;
        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
      }
    }
    return new Selection(ranges, primIndex);
  }

  function simpleSelection(anchor, head) {
    return new Selection([new Range(anchor, head || anchor)], 0);
  }

  // Most of the external API clips given positions to make sure they
  // actually exist within the document.
  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
  function clipPos(doc, pos) {
    if (pos.line < doc.first) return Pos(doc.first, 0);
    var last = doc.first + doc.size - 1;
    if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
    return clipToLen(pos, getLine(doc, pos.line).text.length);
  }
  function clipToLen(pos, linelen) {
    var ch = pos.ch;
    if (ch == null || ch > linelen) return Pos(pos.line, linelen);
    else if (ch < 0) return Pos(pos.line, 0);
    else return pos;
  }
  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
  function clipPosArray(doc, array) {
    for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
    return out;
  }

  // SELECTION UPDATES

  // The 'scroll' parameter given to many of these indicated whether
  // the new cursor position should be scrolled into view after
  // modifying the selection.

  // If shift is held or the extend flag is set, extends a range to
  // include a given position (and optionally a second position).
  // Otherwise, simply returns the range between the given positions.
  // Used for cursor motion and such.
  function extendRange(doc, range, head, other) {
    if (doc.cm && doc.cm.display.shift || doc.extend) {
      var anchor = range.anchor;
      if (other) {
        var posBefore = cmp(head, anchor) < 0;
        if (posBefore != (cmp(other, anchor) < 0)) {
          anchor = head;
          head = other;
        } else if (posBefore != (cmp(head, other) < 0)) {
          head = other;
        }
      }
      return new Range(anchor, head);
    } else {
      return new Range(other || head, head);
    }
  }

  // Extend the primary selection range, discard the rest.
  function extendSelection(doc, head, other, options) {
    setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
  }

  // Extend all selections (pos is an array of selections with length
  // equal the number of selections)
  function extendSelections(doc, heads, options) {
    for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
      out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
    var newSel = normalizeSelection(out, doc.sel.primIndex);
    setSelection(doc, newSel, options);
  }

  // Updates a single range in the selection.
  function replaceOneSelection(doc, i, range, options) {
    var ranges = doc.sel.ranges.slice(0);
    ranges[i] = range;
    setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
  }

  // Reset the selection to a single range.
  function setSimpleSelection(doc, anchor, head, options) {
    setSelection(doc, simpleSelection(anchor, head), options);
  }

  // Give beforeSelectionChange handlers a change to influence a
  // selection update.
  function filterSelectionChange(doc, sel) {
    var obj = {
      ranges: sel.ranges,
      update: function(ranges) {
        this.ranges = [];
        for (var i = 0; i < ranges.length; i++)
          this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
                                     clipPos(doc, ranges[i].head));
      }
    };
    signal(doc, "beforeSelectionChange", doc, obj);
    if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
    if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
    else return sel;
  }

  function setSelectionReplaceHistory(doc, sel, options) {
    var done = doc.history.done, last = lst(done);
    if (last && last.ranges) {
      done[done.length - 1] = sel;
      setSelectionNoUndo(doc, sel, options);
    } else {
      setSelection(doc, sel, options);
    }
  }

  // Set a new selection.
  function setSelection(doc, sel, options) {
    setSelectionNoUndo(doc, sel, options);
    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
  }

  function setSelectionNoUndo(doc, sel, options) {
    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
      sel = filterSelectionChange(doc, sel);

    var bias = options && options.bias ||
      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

    if (!(options && options.scroll === false) && doc.cm)
      ensureCursorVisible(doc.cm);
  }

  function setSelectionInner(doc, sel) {
    if (sel.equals(doc.sel)) return;

    doc.sel = sel;

    if (doc.cm) {
      doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
      signalCursorActivity(doc.cm);
    }
    signalLater(doc, "cursorActivity", doc);
  }

  // Verify that the selection does not partially select any atomic
  // marked ranges.
  function reCheckSelection(doc) {
    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
  }

  // Return a selection that does not partially select any atomic
  // ranges.
  function skipAtomicInSelection(doc, sel, bias, mayClear) {
    var out;
    for (var i = 0; i < sel.ranges.length; i++) {
      var range = sel.ranges[i];
      var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
      var newHead = skipAtomic(doc, range.head, bias, mayClear);
      if (out || newAnchor != range.anchor || newHead != range.head) {
        if (!out) out = sel.ranges.slice(0, i);
        out[i] = new Range(newAnchor, newHead);
      }
    }
    return out ? normalizeSelection(out, sel.primIndex) : sel;
  }

  // Ensure a given position is not inside an atomic range.
  function skipAtomic(doc, pos, bias, mayClear) {
    var flipped = false, curPos = pos;
    var dir = bias || 1;
    doc.cantEdit = false;
    search: for (;;) {
      var line = getLine(doc, curPos.line);
      if (line.markedSpans) {
        for (var i = 0; i < line.markedSpans.length; ++i) {
          var sp = line.markedSpans[i], m = sp.marker;
          if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
              (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
            if (mayClear) {
              signal(m, "beforeCursorEnter");
              if (m.explicitlyCleared) {
                if (!line.markedSpans) break;
                else {--i; continue;}
              }
            }
            if (!m.atomic) continue;
            var newPos = m.find(dir < 0 ? -1 : 1);
            if (cmp(newPos, curPos) == 0) {
              newPos.ch += dir;
              if (newPos.ch < 0) {
                if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
                else newPos = null;
              } else if (newPos.ch > line.text.length) {
                if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
                else newPos = null;
              }
              if (!newPos) {
                if (flipped) {
                  // Driven in a corner -- no valid cursor position found at all
                  // -- try again *with* clearing, if we didn't already
                  if (!mayClear) return skipAtomic(doc, pos, bias, true);
                  // Otherwise, turn off editing until further notice, and return the start of the doc
                  doc.cantEdit = true;
                  return Pos(doc.first, 0);
                }
                flipped = true; newPos = pos; dir = -dir;
              }
            }
            curPos = newPos;
            continue search;
          }
        }
      }
      return curPos;
    }
  }

  // SELECTION DRAWING

  function updateSelection(cm) {
    cm.display.input.showSelection(cm.display.input.prepareSelection());
  }

  function prepareSelection(cm, primary) {
    var doc = cm.doc, result = {};
    var curFragment = result.cursors = document.createDocumentFragment();
    var selFragment = result.selection = document.createDocumentFragment();

    for (var i = 0; i < doc.sel.ranges.length; i++) {
      if (primary === false && i == doc.sel.primIndex) continue;
      var range = doc.sel.ranges[i];
      var collapsed = range.empty();
      if (collapsed || cm.options.showCursorWhenSelecting)
        drawSelectionCursor(cm, range, curFragment);
      if (!collapsed)
        drawSelectionRange(cm, range, selFragment);
    }
    return result;
  }

  // Draws a cursor for the given range
  function drawSelectionCursor(cm, range, output) {
    var pos = cursorCoords(cm, range.head, "div", null, null, !cm.options.singleCursorHeightPerLine);

    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
    cursor.style.left = pos.left + "px";
    cursor.style.top = pos.top + "px";
    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

    if (pos.other) {
      // Secondary cursor, shown when on a 'jump' in bi-directional text
      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
      otherCursor.style.display = "";
      otherCursor.style.left = pos.other.left + "px";
      otherCursor.style.top = pos.other.top + "px";
      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
    }
  }

  // Draws the given range as a highlighted selection
  function drawSelectionRange(cm, range, output) {
    var display = cm.display, doc = cm.doc;
    var fragment = document.createDocumentFragment();
    var padding = paddingH(cm.display), leftSide = padding.left;
    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;

    function add(left, top, width, bottom) {
      if (top < 0) top = 0;
      top = Math.round(top);
      bottom = Math.round(bottom);
      fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
                               "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
                               "px; height: " + (bottom - top) + "px"));
    }

    function drawForLine(line, fromArg, toArg) {
      var lineObj = getLine(doc, line);
      var lineLen = lineObj.text.length;
      var start, end;
      function coords(ch, bias) {
        return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
      }

      iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
        var leftPos = coords(from, "left"), rightPos, left, right;
        if (from == to) {
          rightPos = leftPos;
          left = right = leftPos.left;
        } else {
          rightPos = coords(to - 1, "right");
          if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
          left = leftPos.left;
          right = rightPos.right;
        }
        if (fromArg == null && from == 0) left = leftSide;
        if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
          add(left, leftPos.top, null, leftPos.bottom);
          left = leftSide;
          if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
        }
        if (toArg == null && to == lineLen) right = rightSide;
        if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
          start = leftPos;
        if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
          end = rightPos;
        if (left < leftSide + 1) left = leftSide;
        add(left, rightPos.top, right - left, rightPos.bottom);
      });
      return {start: start, end: end};
    }

    var sFrom = range.from(), sTo = range.to();
    if (sFrom.line == sTo.line) {
      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
    } else {
      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
      var singleVLine = visualLine(fromLine) == visualLine(toLine);
      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
      if (singleVLine) {
        if (leftEnd.top < rightStart.top - 2) {
          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
        } else {
          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
        }
      }
      if (leftEnd.bottom < rightStart.top)
        add(leftSide, leftEnd.bottom, null, rightStart.top);
    }

    output.appendChild(fragment);
  }

  // Cursor-blinking
  function restartBlink(cm) {
    if (!cm.state.focused) return;
    var display = cm.display;
    clearInterval(display.blinker);
    var on = true;
    display.cursorDiv.style.visibility = "";
    if (cm.options.cursorBlinkRate > 0)
      display.blinker = setInterval(function() {
        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
      }, cm.options.cursorBlinkRate);
    else if (cm.options.cursorBlinkRate < 0)
      display.cursorDiv.style.visibility = "hidden";
  }

  // HIGHLIGHT WORKER

  function startWorker(cm, time) {
    if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
      cm.state.highlight.set(time, bind(highlightWorker, cm));
  }

  function highlightWorker(cm) {
    var doc = cm.doc;
    if (doc.frontier < doc.first) doc.frontier = doc.first;
    if (doc.frontier >= cm.display.viewTo) return;
    var end = +new Date + cm.options.workTime;
    var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
    var changedLines = [];

    doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
      if (doc.frontier >= cm.display.viewFrom) { // Visible
        var oldStyles = line.styles;
        var highlighted = highlightLine(cm, line, state, true);
        line.styles = highlighted.styles;
        var oldCls = line.styleClasses, newCls = highlighted.classes;
        if (newCls) line.styleClasses = newCls;
        else if (oldCls) line.styleClasses = null;
        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
        for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
        if (ischange) changedLines.push(doc.frontier);
        line.stateAfter = copyState(doc.mode, state);
      } else {
        processLine(cm, line.text, state);
        line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
      }
      ++doc.frontier;
      if (+new Date > end) {
        startWorker(cm, cm.options.workDelay);
        return true;
      }
    });
    if (changedLines.length) runInOp(cm, function() {
      for (var i = 0; i < changedLines.length; i++)
        regLineChange(cm, changedLines[i], "text");
    });
  }

  // Finds the line to start with when starting a parse. Tries to
  // find a line with a stateAfter, so that it can start with a
  // valid state. If that fails, it returns the line with the
  // smallest indentation, which tends to need the least context to
  // parse correctly.
  function findStartLine(cm, n, precise) {
    var minindent, minline, doc = cm.doc;
    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
    for (var search = n; search > lim; --search) {
      if (search <= doc.first) return doc.first;
      var line = getLine(doc, search - 1);
      if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
      var indented = countColumn(line.text, null, cm.options.tabSize);
      if (minline == null || minindent > indented) {
        minline = search - 1;
        minindent = indented;
      }
    }
    return minline;
  }

  function getStateBefore(cm, n, precise) {
    var doc = cm.doc, display = cm.display;
    if (!doc.mode.startState) return true;
    var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
    if (!state) state = startState(doc.mode);
    else state = copyState(doc.mode, state);
    doc.iter(pos, n, function(line) {
      processLine(cm, line.text, state);
      var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
      line.stateAfter = save ? copyState(doc.mode, state) : null;
      ++pos;
    });
    if (precise) doc.frontier = pos;
    return state;
  }

  // POSITION MEASUREMENT

  function paddingTop(display) {return display.lineSpace.offsetTop;}
  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
  function paddingH(display) {
    if (display.cachedPaddingH) return display.cachedPaddingH;
    var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
    if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
    return data;
  }

  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
  function displayWidth(cm) {
    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
  }
  function displayHeight(cm) {
    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
  }

  // Ensure the lineView.wrapping.heights array is populated. This is
  // an array of bottom offsets for the lines that make up a drawn
  // line. When lineWrapping is on, there might be more than one
  // height.
  function ensureLineHeights(cm, lineView, rect) {
    var wrapping = cm.options.lineWrapping;
    var curWidth = wrapping && displayWidth(cm);
    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
      var heights = lineView.measure.heights = [];
      if (wrapping) {
        lineView.measure.width = curWidth;
        var rects = lineView.text.firstChild.getClientRects();
        for (var i = 0; i < rects.length - 1; i++) {
          var cur = rects[i], next = rects[i + 1];
          if (Math.abs(cur.bottom - next.bottom) > 2)
            heights.push((cur.bottom + next.top) / 2 - rect.top);
        }
      }
      heights.push(rect.bottom - rect.top);
    }
  }

  // Find a line map (mapping character offsets to text nodes) and a
  // measurement cache for the given line number. (A line view might
  // contain multiple lines when collapsed ranges are present.)
  function mapFromLineView(lineView, line, lineN) {
    if (lineView.line == line)
      return {map: lineView.measure.map, cache: lineView.measure.cache};
    for (var i = 0; i < lineView.rest.length; i++)
      if (lineView.rest[i] == line)
        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
    for (var i = 0; i < lineView.rest.length; i++)
      if (lineNo(lineView.rest[i]) > lineN)
        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
  }

  // Render a line into the hidden node display.externalMeasured. Used
  // when measurement is needed for a line that's not in the viewport.
  function updateExternalMeasurement(cm, line) {
    line = visualLine(line);
    var lineN = lineNo(line);
    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
    view.lineN = lineN;
    var built = view.built = buildLineContent(cm, view);
    view.text = built.pre;
    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
    return view;
  }

  // Get a {top, bottom, left, right} box (in line-local coordinates)
  // for a given character.
  function measureChar(cm, line, ch, bias) {
    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
  }

  // Find a line view that corresponds to the given line number.
  function findViewForLine(cm, lineN) {
    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
      return cm.display.view[findViewIndex(cm, lineN)];
    var ext = cm.display.externalMeasured;
    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
      return ext;
  }

  // Measurement can be split in two steps, the set-up work that
  // applies to the whole line, and the measurement of the actual
  // character. Functions like coordsChar, that need to do a lot of
  // measurements in a row, can thus ensure that the set-up work is
  // only done once.
  function prepareMeasureForLine(cm, line) {
    var lineN = lineNo(line);
    var view = findViewForLine(cm, lineN);
    if (view && !view.text)
      view = null;
    else if (view && view.changes)
      updateLineForChanges(cm, view, lineN, getDimensions(cm));
    if (!view)
      view = updateExternalMeasurement(cm, line);

    var info = mapFromLineView(view, line, lineN);
    return {
      line: line, view: view, rect: null,
      map: info.map, cache: info.cache, before: info.before,
      hasHeights: false
    };
  }

  // Given a prepared measurement object, measures the position of an
  // actual character (or fetches it from the cache).
  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
    if (prepared.before) ch = -1;
    var key = ch + (bias || ""), found;
    if (prepared.cache.hasOwnProperty(key)) {
      found = prepared.cache[key];
    } else {
      if (!prepared.rect)
        prepared.rect = prepared.view.text.getBoundingClientRect();
      if (!prepared.hasHeights) {
        ensureLineHeights(cm, prepared.view, prepared.rect);
        prepared.hasHeights = true;
      }
      found = measureCharInner(cm, prepared, ch, bias);
      if (!found.bogus) prepared.cache[key] = found;
    }
    return {left: found.left, right: found.right,
            top: varHeight ? found.rtop : found.top,
            bottom: varHeight ? found.rbottom : found.bottom};
  }

  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

  function nodeAndOffsetInLineMap(map, ch, bias) {
    var node, start, end, collapse;
    // First, search the line map for the text node corresponding to,
    // or closest to, the target character.
    for (var i = 0; i < map.length; i += 3) {
      var mStart = map[i], mEnd = map[i + 1];
      if (ch < mStart) {
        start = 0; end = 1;
        collapse = "left";
      } else if (ch < mEnd) {
        start = ch - mStart;
        end = start + 1;
      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
        end = mEnd - mStart;
        start = end - 1;
        if (ch >= mEnd) collapse = "right";
      }
      if (start != null) {
        node = map[i + 2];
        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
          collapse = bias;
        if (bias == "left" && start == 0)
          while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
            node = map[(i -= 3) + 2];
            collapse = "left";
          }
        if (bias == "right" && start == mEnd - mStart)
          while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
            node = map[(i += 3) + 2];
            collapse = "right";
          }
        break;
      }
    }
    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
  }

  function measureCharInner(cm, prepared, ch, bias) {
    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

    var rect;
    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
      for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
          rect = node.parentNode.getBoundingClientRect();
        } else if (ie && cm.options.lineWrapping) {
          var rects = range(node, start, end).getClientRects();
          if (rects.length)
            rect = rects[bias == "right" ? rects.length - 1 : 0];
          else
            rect = nullRect;
        } else {
          rect = range(node, start, end).getBoundingClientRect() || nullRect;
        }
        if (rect.left || rect.right || start == 0) break;
        end = start;
        start = start - 1;
        collapse = "right";
      }
      if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
    } else { // If it is a widget, simply get the box for the whole widget.
      if (start > 0) collapse = bias = "right";
      var rects;
      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
        rect = rects[bias == "right" ? rects.length - 1 : 0];
      else
        rect = node.getBoundingClientRect();
    }
    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
      var rSpan = node.parentNode.getClientRects()[0];
      if (rSpan)
        rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
      else
        rect = nullRect;
    }

    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
    var mid = (rtop + rbot) / 2;
    var heights = prepared.view.measure.heights;
    for (var i = 0; i < heights.length - 1; i++)
      if (mid < heights[i]) break;
    var top = i ? heights[i - 1] : 0, bot = heights[i];
    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
                  top: top, bottom: bot};
    if (!rect.left && !rect.right) result.bogus = true;
    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }

    return result;
  }

  // Work around problem with bounding client rects on ranges being
  // returned incorrectly when zoomed on IE10 and below.
  function maybeUpdateRectForZooming(measure, rect) {
    if (!window.screen || screen.logicalXDPI == null ||
        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
      return rect;
    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
    return {left: rect.left * scaleX, right: rect.right * scaleX,
            top: rect.top * scaleY, bottom: rect.bottom * scaleY};
  }

  function clearLineMeasurementCacheFor(lineView) {
    if (lineView.measure) {
      lineView.measure.cache = {};
      lineView.measure.heights = null;
      if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
        lineView.measure.caches[i] = {};
    }
  }

  function clearLineMeasurementCache(cm) {
    cm.display.externalMeasure = null;
    removeChildren(cm.display.lineMeasure);
    for (var i = 0; i < cm.display.view.length; i++)
      clearLineMeasurementCacheFor(cm.display.view[i]);
  }

  function clearCaches(cm) {
    clearLineMeasurementCache(cm);
    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
    if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
    cm.display.lineNumChars = null;
  }

  function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
  function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }

  // Converts a {top, bottom, left, right} box from line-local
  // coordinates into another coordinate system. Context may be one of
  // "line", "div" (display.lineDiv), "local"/null (editor), "window",
  // or "page".
  function intoCoordSystem(cm, lineObj, rect, context) {
    if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
      var size = widgetHeight(lineObj.widgets[i]);
      rect.top += size; rect.bottom += size;
    }
    if (context == "line") return rect;
    if (!context) context = "local";
    var yOff = heightAtLine(lineObj);
    if (context == "local") yOff += paddingTop(cm.display);
    else yOff -= cm.display.viewOffset;
    if (context == "page" || context == "window") {
      var lOff = cm.display.lineSpace.getBoundingClientRect();
      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
      rect.left += xOff; rect.right += xOff;
    }
    rect.top += yOff; rect.bottom += yOff;
    return rect;
  }

  // Coverts a box from "div" coords to another coordinate system.
  // Context may be "window", "page", "div", or "local"/null.
  function fromCoordSystem(cm, coords, context) {
    if (context == "div") return coords;
    var left = coords.left, top = coords.top;
    // First move into "page" coordinate system
    if (context == "page") {
      left -= pageScrollX();
      top -= pageScrollY();
    } else if (context == "local" || !context) {
      var localBox = cm.display.sizer.getBoundingClientRect();
      left += localBox.left;
      top += localBox.top;
    }

    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
  }

  function charCoords(cm, pos, context, lineObj, bias) {
    if (!lineObj) lineObj = getLine(cm.doc, pos.line);
    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
  }

  // Returns a box for a given cursor position, which may have an
  // 'other' property containing the position of the secondary cursor
  // on a bidi boundary.
  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
    lineObj = lineObj || getLine(cm.doc, pos.line);
    if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
    function get(ch, right) {
      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
      if (right) m.left = m.right; else m.right = m.left;
      return intoCoordSystem(cm, lineObj, m, context);
    }
    function getBidi(ch, partPos) {
      var part = order[partPos], right = part.level % 2;
      if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
        part = order[--partPos];
        ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
        right = true;
      } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
        part = order[++partPos];
        ch = bidiLeft(part) - part.level % 2;
        right = false;
      }
      if (right && ch == part.to && ch > part.from) return get(ch - 1);
      return get(ch, right);
    }
    var order = getOrder(lineObj), ch = pos.ch;
    if (!order) return get(ch);
    var partPos = getBidiPartAt(order, ch);
    var val = getBidi(ch, partPos);
    if (bidiOther != null) val.other = getBidi(ch, bidiOther);
    return val;
  }

  // Used to cheaply estimate the coordinates for a position. Used for
  // intermediate scroll updates.
  function estimateCoords(cm, pos) {
    var left = 0, pos = clipPos(cm.doc, pos);
    if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
    var lineObj = getLine(cm.doc, pos.line);
    var top = heightAtLine(lineObj) + paddingTop(cm.display);
    return {left: left, right: left, top: top, bottom: top + lineObj.height};
  }

  // Positions returned by coordsChar contain some extra information.
  // xRel is the relative x position of the input coordinates compared
  // to the found position (so xRel > 0 means the coordinates are to
  // the right of the character position, for example). When outside
  // is true, that means the coordinates lie outside the line's
  // vertical range.
  function PosWithInfo(line, ch, outside, xRel) {
    var pos = Pos(line, ch);
    pos.xRel = xRel;
    if (outside) pos.outside = true;
    return pos;
  }

  // Compute the character position closest to the given coordinates.
  // Input must be lineSpace-local ("div" coordinate system).
  function coordsChar(cm, x, y) {
    var doc = cm.doc;
    y += cm.display.viewOffset;
    if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
    if (lineN > last)
      return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
    if (x < 0) x = 0;

    var lineObj = getLine(doc, lineN);
    for (;;) {
      var found = coordsCharInner(cm, lineObj, lineN, x, y);
      var merged = collapsedSpanAtEnd(lineObj);
      var mergedPos = merged && merged.find(0, true);
      if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
        lineN = lineNo(lineObj = mergedPos.to.line);
      else
        return found;
    }
  }

  function coordsCharInner(cm, lineObj, lineNo, x, y) {
    var innerOff = y - heightAtLine(lineObj);
    var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
    var preparedMeasure = prepareMeasureForLine(cm, lineObj);

    function getX(ch) {
      var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
      wrongLine = true;
      if (innerOff > sp.bottom) return sp.left - adjust;
      else if (innerOff < sp.top) return sp.left + adjust;
      else wrongLine = false;
      return sp.left;
    }

    var bidi = getOrder(lineObj), dist = lineObj.text.length;
    var from = lineLeft(lineObj), to = lineRight(lineObj);
    var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;

    if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
    // Do a binary search between these bounds.
    for (;;) {
      if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
        var ch = x < fromX || x - fromX <= toX - x ? from : to;
        var xDiff = x - (ch == from ? fromX : toX);
        while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
        var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
                              xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
        return pos;
      }
      var step = Math.ceil(dist / 2), middle = from + step;
      if (bidi) {
        middle = from;
        for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
      }
      var middleX = getX(middle);
      if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
      else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
    }
  }

  var measureText;
  // Compute the default text height.
  function textHeight(display) {
    if (display.cachedTextHeight != null) return display.cachedTextHeight;
    if (measureText == null) {
      measureText = elt("pre");
      // Measure a bunch of lines, for browsers that compute
      // fractional heights.
      for (var i = 0; i < 49; ++i) {
        measureText.appendChild(document.createTextNode("x"));
        measureText.appendChild(elt("br"));
      }
      measureText.appendChild(document.createTextNode("x"));
    }
    removeChildrenAndAdd(display.measure, measureText);
    var height = measureText.offsetHeight / 50;
    if (height > 3) display.cachedTextHeight = height;
    removeChildren(display.measure);
    return height || 1;
  }

  // Compute the default character width.
  function charWidth(display) {
    if (display.cachedCharWidth != null) return display.cachedCharWidth;
    var anchor = elt("span", "xxxxxxxxxx");
    var pre = elt("pre", [anchor]);
    removeChildrenAndAdd(display.measure, pre);
    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
    if (width > 2) display.cachedCharWidth = width;
    return width || 10;
  }

  // OPERATIONS

  // Operations are used to wrap a series of changes to the editor
  // state in such a way that each change won't have to update the
  // cursor and display (which would be awkward, slow, and
  // error-prone). Instead, display updates are batched and then all
  // combined and executed at once.

  var operationGroup = null;

  var nextOpId = 0;
  // Start a new operation.
  function startOperation(cm) {
    cm.curOp = {
      cm: cm,
      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
      startHeight: cm.doc.height, // Used to detect need to update scrollbar
      forceUpdate: false,      // Used to force a redraw
      updateInput: null,       // Whether to reset the input textarea
      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
      changeObjs: null,        // Accumulated changes, for firing change events
      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
      selectionChanged: false, // Whether the selection needs to be redrawn
      updateMaxLine: false,    // Set when the widest line needs to be determined anew
      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
      scrollToPos: null,       // Used to scroll to a specific position
      focus: false,
      id: ++nextOpId           // Unique ID
    };
    if (operationGroup) {
      operationGroup.ops.push(cm.curOp);
    } else {
      cm.curOp.ownsGroup = operationGroup = {
        ops: [cm.curOp],
        delayedCallbacks: []
      };
    }
  }

  function fireCallbacksForOps(group) {
    // Calls delayed callbacks and cursorActivity handlers until no
    // new ones appear
    var callbacks = group.delayedCallbacks, i = 0;
    do {
      for (; i < callbacks.length; i++)
        callbacks[i]();
      for (var j = 0; j < group.ops.length; j++) {
        var op = group.ops[j];
        if (op.cursorActivityHandlers)
          while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
            op.cursorActivityHandlers[op.cursorActivityCalled++](op.cm);
      }
    } while (i < callbacks.length);
  }

  // Finish an operation, updating the display and signalling delayed events
  function endOperation(cm) {
    var op = cm.curOp, group = op.ownsGroup;
    if (!group) return;

    try { fireCallbacksForOps(group); }
    finally {
      operationGroup = null;
      for (var i = 0; i < group.ops.length; i++)
        group.ops[i].cm.curOp = null;
      endOperations(group);
    }
  }

  // The DOM updates done when an operation finishes are batched so
  // that the minimum number of relayouts are required.
  function endOperations(group) {
    var ops = group.ops;
    for (var i = 0; i < ops.length; i++) // Read DOM
      endOperation_R1(ops[i]);
    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
      endOperation_W1(ops[i]);
    for (var i = 0; i < ops.length; i++) // Read DOM
      endOperation_R2(ops[i]);
    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
      endOperation_W2(ops[i]);
    for (var i = 0; i < ops.length; i++) // Read DOM
      endOperation_finish(ops[i]);
  }

  function endOperation_R1(op) {
    var cm = op.cm, display = cm.display;
    maybeClipScrollbars(cm);
    if (op.updateMaxLine) findMaxLine(cm);

    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
                         op.scrollToPos.to.line >= display.viewTo) ||
      display.maxLineChanged && cm.options.lineWrapping;
    op.update = op.mustUpdate &&
      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
  }

  function endOperation_W1(op) {
    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
  }

  function endOperation_R2(op) {
    var cm = op.cm, display = cm.display;
    if (op.updatedDisplay) updateHeightsInViewport(cm);

    op.barMeasure = measureForScrollbars(cm);

    // If the max line changed since it was last measured, measure it,
    // and ensure the document's width matches it.
    // updateDisplay_W2 will use these properties to do the actual resizing
    if (display.maxLineChanged && !cm.options.lineWrapping) {
      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
      cm.display.sizerWidth = op.adjustWidthTo;
      op.barMeasure.scrollWidth =
        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
    }

    if (op.updatedDisplay || op.selectionChanged)
      op.preparedSelection = display.input.prepareSelection();
  }

  function endOperation_W2(op) {
    var cm = op.cm;

    if (op.adjustWidthTo != null) {
      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
      if (op.maxScrollLeft < cm.doc.scrollLeft)
        setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
      cm.display.maxLineChanged = false;
    }

    if (op.preparedSelection)
      cm.display.input.showSelection(op.preparedSelection);
    if (op.updatedDisplay)
      setDocumentHeight(cm, op.barMeasure);
    if (op.updatedDisplay || op.startHeight != cm.doc.height)
      updateScrollbars(cm, op.barMeasure);

    if (op.selectionChanged) restartBlink(cm);

    if (cm.state.focused && op.updateInput)
      cm.display.input.reset(op.typing);
    if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
  }

  function endOperation_finish(op) {
    var cm = op.cm, display = cm.display, doc = cm.doc;

    if (op.updatedDisplay) postUpdateDisplay(cm, op.update);

    // Abort mouse wheel delta measurement, when scrolling explicitly
    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
      display.wheelStartX = display.wheelStartY = null;

    // Propagate the scroll position to the actual DOM scroller
    if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
      doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
      display.scrollbars.setScrollTop(doc.scrollTop);
      display.scroller.scrollTop = doc.scrollTop;
    }
    if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
      doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));
      display.scrollbars.setScrollLeft(doc.scrollLeft);
      display.scroller.scrollLeft = doc.scrollLeft;
      alignHorizontally(cm);
    }
    // If we need to scroll a specific position into view, do so.
    if (op.scrollToPos) {
      var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
                                     clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
      if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
    }

    // Fire events for markers that are hidden/unidden by editing or
    // undoing
    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
    if (hidden) for (var i = 0; i < hidden.length; ++i)
      if (!hidden[i].lines.length) signal(hidden[i], "hide");
    if (unhidden) for (var i = 0; i < unhidden.length; ++i)
      if (unhidden[i].lines.length) signal(unhidden[i], "unhide");

    if (display.wrapper.offsetHeight)
      doc.scrollTop = cm.display.scroller.scrollTop;

    // Fire change events, and delayed event handlers
    if (op.changeObjs)
      signal(cm, "changes", cm, op.changeObjs);
    if (op.update)
      op.update.finish();
  }

  // Run the given function in an operation
  function runInOp(cm, f) {
    if (cm.curOp) return f();
    startOperation(cm);
    try { return f(); }
    finally { endOperation(cm); }
  }
  // Wraps a function in an operation. Returns the wrapped function.
  function operation(cm, f) {
    return function() {
      if (cm.curOp) return f.apply(cm, arguments);
      startOperation(cm);
      try { return f.apply(cm, arguments); }
      finally { endOperation(cm); }
    };
  }
  // Used to add methods to editor and doc instances, wrapping them in
  // operations.
  function methodOp(f) {
    return function() {
      if (this.curOp) return f.apply(this, arguments);
      startOperation(this);
      try { return f.apply(this, arguments); }
      finally { endOperation(this); }
    };
  }
  function docMethodOp(f) {
    return function() {
      var cm = this.cm;
      if (!cm || cm.curOp) return f.apply(this, arguments);
      startOperation(cm);
      try { return f.apply(this, arguments); }
      finally { endOperation(cm); }
    };
  }

  // VIEW TRACKING

  // These objects are used to represent the visible (currently drawn)
  // part of the document. A LineView may correspond to multiple
  // logical lines, if those are connected by collapsed ranges.
  function LineView(doc, line, lineN) {
    // The starting line
    this.line = line;
    // Continuing lines, if any
    this.rest = visualLineContinued(line);
    // Number of logical lines in this visual line
    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
    this.node = this.text = null;
    this.hidden = lineIsHidden(doc, line);
  }

  // Create a range of LineView objects for the given lines.
  function buildViewArray(cm, from, to) {
    var array = [], nextPos;
    for (var pos = from; pos < to; pos = nextPos) {
      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
      nextPos = pos + view.size;
      array.push(view);
    }
    return array;
  }

  // Updates the display.view data structure for a given change to the
  // document. From and to are in pre-change coordinates. Lendiff is
  // the amount of lines added or subtracted by the change. This is
  // used for changes that span multiple lines, or change the way
  // lines are divided into visual lines. regLineChange (below)
  // registers single-line changes.
  function regChange(cm, from, to, lendiff) {
    if (from == null) from = cm.doc.first;
    if (to == null) to = cm.doc.first + cm.doc.size;
    if (!lendiff) lendiff = 0;

    var display = cm.display;
    if (lendiff && to < display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers > from))
      display.updateLineNumbers = from;

    cm.curOp.viewChanged = true;

    if (from >= display.viewTo) { // Change after
      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
        resetView(cm);
    } else if (to <= display.viewFrom) { // Change before
      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
        resetView(cm);
      } else {
        display.viewFrom += lendiff;
        display.viewTo += lendiff;
      }
    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
      resetView(cm);
    } else if (from <= display.viewFrom) { // Top overlap
      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cut) {
        display.view = display.view.slice(cut.index);
        display.viewFrom = cut.lineN;
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    } else if (to >= display.viewTo) { // Bottom overlap
      var cut = viewCuttingPoint(cm, from, from, -1);
      if (cut) {
        display.view = display.view.slice(0, cut.index);
        display.viewTo = cut.lineN;
      } else {
        resetView(cm);
      }
    } else { // Gap in the middle
      var cutTop = viewCuttingPoint(cm, from, from, -1);
      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cutTop && cutBot) {
        display.view = display.view.slice(0, cutTop.index)
          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
          .concat(display.view.slice(cutBot.index));
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    }

    var ext = display.externalMeasured;
    if (ext) {
      if (to < ext.lineN)
        ext.lineN += lendiff;
      else if (from < ext.lineN + ext.size)
        display.externalMeasured = null;
    }
  }

  // Register a change to a single line. Type must be one of "text",
  // "gutter", "class", "widget"
  function regLineChange(cm, line, type) {
    cm.curOp.viewChanged = true;
    var display = cm.display, ext = cm.display.externalMeasured;
    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
      display.externalMeasured = null;

    if (line < display.viewFrom || line >= display.viewTo) return;
    var lineView = display.view[findViewIndex(cm, line)];
    if (lineView.node == null) return;
    var arr = lineView.changes || (lineView.changes = []);
    if (indexOf(arr, type) == -1) arr.push(type);
  }

  // Clear the view.
  function resetView(cm) {
    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
    cm.display.view = [];
    cm.display.viewOffset = 0;
  }

  // Find the view element corresponding to a given line. Return null
  // when the line isn't visible.
  function findViewIndex(cm, n) {
    if (n >= cm.display.viewTo) return null;
    n -= cm.display.viewFrom;
    if (n < 0) return null;
    var view = cm.display.view;
    for (var i = 0; i < view.length; i++) {
      n -= view[i].size;
      if (n < 0) return i;
    }
  }

  function viewCuttingPoint(cm, oldN, newN, dir) {
    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
      return {index: index, lineN: newN};
    for (var i = 0, n = cm.display.viewFrom; i < index; i++)
      n += view[i].size;
    if (n != oldN) {
      if (dir > 0) {
        if (index == view.length - 1) return null;
        diff = (n + view[index].size) - oldN;
        index++;
      } else {
        diff = n - oldN;
      }
      oldN += diff; newN += diff;
    }
    while (visualLineNo(cm.doc, newN) != newN) {
      if (index == (dir < 0 ? 0 : view.length - 1)) return null;
      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
      index += dir;
    }
    return {index: index, lineN: newN};
  }

  // Force the view to cover a given range, adding empty view element
  // or clipping off existing ones as needed.
  function adjustView(cm, from, to) {
    var display = cm.display, view = display.view;
    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
      display.view = buildViewArray(cm, from, to);
      display.viewFrom = from;
    } else {
      if (display.viewFrom > from)
        display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
      else if (display.viewFrom < from)
        display.view = display.view.slice(findViewIndex(cm, from));
      display.viewFrom = from;
      if (display.viewTo < to)
        display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
      else if (display.viewTo > to)
        display.view = display.view.slice(0, findViewIndex(cm, to));
    }
    display.viewTo = to;
  }

  // Count the number of lines in the view whose DOM representation is
  // out of date (or nonexistent).
  function countDirtyView(cm) {
    var view = cm.display.view, dirty = 0;
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
    }
    return dirty;
  }

  // EVENT HANDLERS

  // Attach the necessary event handlers when initializing the editor
  function registerEventHandlers(cm) {
    var d = cm.display;
    on(d.scroller, "mousedown", operation(cm, onMouseDown));
    // Older IE's will not fire a second mousedown for a double click
    if (ie && ie_version < 11)
      on(d.scroller, "dblclick", operation(cm, function(e) {
        if (signalDOMEvent(cm, e)) return;
        var pos = posFromMouse(cm, e);
        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
        e_preventDefault(e);
        var word = cm.findWordAt(pos);
        extendSelection(cm.doc, word.anchor, word.head);
      }));
    else
      on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
    // Some browsers fire contextmenu *after* opening the menu, at
    // which point we can't mess with it anymore. Context menu is
    // handled in onMouseDown for these browsers.
    if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});

    // Used to suppress mouse event handling when a touch happens
    var touchFinished, prevTouch = {end: 0};
    function finishTouch() {
      if (d.activeTouch) {
        touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
        prevTouch = d.activeTouch;
        prevTouch.end = +new Date;
      }
    };
    function isMouseLikeTouchEvent(e) {
      if (e.touches.length != 1) return false;
      var touch = e.touches[0];
      return touch.radiusX <= 1 && touch.radiusY <= 1;
    }
    function farAway(touch, other) {
      if (other.left == null) return true;
      var dx = other.left - touch.left, dy = other.top - touch.top;
      return dx * dx + dy * dy > 20 * 20;
    }
    on(d.scroller, "touchstart", function(e) {
      if (!isMouseLikeTouchEvent(e)) {
        clearTimeout(touchFinished);
        var now = +new Date;
        d.activeTouch = {start: now, moved: false,
                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
        if (e.touches.length == 1) {
          d.activeTouch.left = e.touches[0].pageX;
          d.activeTouch.top = e.touches[0].pageY;
        }
      }
    });
    on(d.scroller, "touchmove", function() {
      if (d.activeTouch) d.activeTouch.moved = true;
    });
    on(d.scroller, "touchend", function(e) {
      var touch = d.activeTouch;
      if (touch && !eventInWidget(d, e) && touch.left != null &&
          !touch.moved && new Date - touch.start < 300) {
        var pos = cm.coordsChar(d.activeTouch, "page"), range;
        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
          range = new Range(pos, pos);
        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
          range = cm.findWordAt(pos);
        else // Triple tap
          range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
        cm.setSelection(range.anchor, range.head);
        cm.focus();
        e_preventDefault(e);
      }
      finishTouch();
    });
    on(d.scroller, "touchcancel", finishTouch);

    // Sync scrolling between fake scrollbars and real scrollable
    // area, ensure viewport is updated when scrolling.
    on(d.scroller, "scroll", function() {
      if (d.scroller.clientHeight) {
        setScrollTop(cm, d.scroller.scrollTop);
        setScrollLeft(cm, d.scroller.scrollLeft, true);
        signal(cm, "scroll", cm);
      }
    });

    // Listen to wheel events in order to try and update the viewport on time.
    on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
    on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});

    // Prevent wrapper from ever scrolling
    on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

    d.dragFunctions = {
      simple: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
      start: function(e){onDragStart(cm, e);},
      drop: operation(cm, onDrop)
    };

    var inp = d.input.getField();
    on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
    on(inp, "keydown", operation(cm, onKeyDown));
    on(inp, "keypress", operation(cm, onKeyPress));
    on(inp, "focus", bind(onFocus, cm));
    on(inp, "blur", bind(onBlur, cm));
  }

  function dragDropChanged(cm, value, old) {
    var wasOn = old && old != CodeMirror.Init;
    if (!value != !wasOn) {
      var funcs = cm.display.dragFunctions;
      var toggle = value ? on : off;
      toggle(cm.display.scroller, "dragstart", funcs.start);
      toggle(cm.display.scroller, "dragenter", funcs.simple);
      toggle(cm.display.scroller, "dragover", funcs.simple);
      toggle(cm.display.scroller, "drop", funcs.drop);
    }
  }

  // Called when the window resizes
  function onResize(cm) {
    var d = cm.display;
    if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
      return;
    // Might be a text scaling operation, clear size caches.
    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
    d.scrollbarsClipped = false;
    cm.setSize();
  }

  // MOUSE EVENTS

  // Return true when the given mouse event happened in a widget
  function eventInWidget(display, e) {
    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
          (n.parentNode == display.sizer && n != display.mover))
        return true;
    }
  }

  // Given a mouse event, find the corresponding position. If liberal
  // is false, it checks whether a gutter or scrollbar was clicked,
  // and returns null if it was. forRect is used by rectangular
  // selections, and tries to estimate a character position even for
  // coordinates beyond the right of the text.
  function posFromMouse(cm, e, liberal, forRect) {
    var display = cm.display;
    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;

    var x, y, space = display.lineSpace.getBoundingClientRect();
    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
    try { x = e.clientX - space.left; y = e.clientY - space.top; }
    catch (e) { return null; }
    var coords = coordsChar(cm, x, y), line;
    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
    }
    return coords;
  }

  // A mouse down can be a single click, double click, triple click,
  // start of selection drag, start of text drag, new cursor
  // (ctrl-click), rectangle drag (alt-drag), or xwin
  // middle-click-paste. Or it might be a click on something we should
  // not interfere with, such as a scrollbar or widget.
  function onMouseDown(e) {
    var cm = this, display = cm.display;
    if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;
    display.shift = e.shiftKey;

    if (eventInWidget(display, e)) {
      if (!webkit) {
        // Briefly turn off draggability, to allow widgets to do
        // normal dragging things.
        display.scroller.draggable = false;
        setTimeout(function(){display.scroller.draggable = true;}, 100);
      }
      return;
    }
    if (clickInGutter(cm, e)) return;
    var start = posFromMouse(cm, e);
    window.focus();

    switch (e_button(e)) {
    case 1:
      if (start)
        leftButtonDown(cm, e, start);
      else if (e_target(e) == display.scroller)
        e_preventDefault(e);
      break;
    case 2:
      if (webkit) cm.state.lastMiddleDown = +new Date;
      if (start) extendSelection(cm.doc, start);
      setTimeout(function() {display.input.focus();}, 20);
      e_preventDefault(e);
      break;
    case 3:
      if (captureRightClick) onContextMenu(cm, e);
      else delayBlurEvent(cm);
      break;
    }
  }

  var lastClick, lastDoubleClick;
  function leftButtonDown(cm, e, start) {
    if (ie) setTimeout(bind(ensureFocus, cm), 0);
    else cm.curOp.focus = activeElt();

    var now = +new Date, type;
    if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
      type = "triple";
    } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
      type = "double";
      lastDoubleClick = {time: now, pos: start};
    } else {
      type = "single";
      lastClick = {time: now, pos: start};
    }

    var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
    if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
        type == "single" && (contained = sel.contains(start)) > -1 &&
        (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
        (cmp(contained.to(), start) > 0 || start.xRel < 0))
      leftButtonStartDrag(cm, e, start, modifier);
    else
      leftButtonSelect(cm, e, start, type, modifier);
  }

  // Start a text drag. When it ends, see if any dragging actually
  // happen, and treat as a click if it didn't.
  function leftButtonStartDrag(cm, e, start, modifier) {
    var display = cm.display, startTime = +new Date;
    var dragEnd = operation(cm, function(e2) {
      if (webkit) display.scroller.draggable = false;
      cm.state.draggingText = false;
      off(document, "mouseup", dragEnd);
      off(display.scroller, "drop", dragEnd);
      if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
        e_preventDefault(e2);
        if (!modifier && +new Date - 200 < startTime)
          extendSelection(cm.doc, start);
        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
        if (webkit || ie && ie_version == 9)
          setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
        else
          display.input.focus();
      }
    });
    // Let the drag handler handle this.
    if (webkit) display.scroller.draggable = true;
    cm.state.draggingText = dragEnd;
    // IE's approach to draggable
    if (display.scroller.dragDrop) display.scroller.dragDrop();
    on(document, "mouseup", dragEnd);
    on(display.scroller, "drop", dragEnd);
  }

  // Normal selection, as opposed to text dragging.
  function leftButtonSelect(cm, e, start, type, addNew) {
    var display = cm.display, doc = cm.doc;
    e_preventDefault(e);

    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
    if (addNew && !e.shiftKey) {
      ourIndex = doc.sel.contains(start);
      if (ourIndex > -1)
        ourRange = ranges[ourIndex];
      else
        ourRange = new Range(start, start);
    } else {
      ourRange = doc.sel.primary();
      ourIndex = doc.sel.primIndex;
    }

    if (e.altKey) {
      type = "rect";
      if (!addNew) ourRange = new Range(start, start);
      start = posFromMouse(cm, e, true, true);
      ourIndex = -1;
    } else if (type == "double") {
      var word = cm.findWordAt(start);
      if (cm.display.shift || doc.extend)
        ourRange = extendRange(doc, ourRange, word.anchor, word.head);
      else
        ourRange = word;
    } else if (type == "triple") {
      var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
      if (cm.display.shift || doc.extend)
        ourRange = extendRange(doc, ourRange, line.anchor, line.head);
      else
        ourRange = line;
    } else {
      ourRange = extendRange(doc, ourRange, start);
    }

    if (!addNew) {
      ourIndex = 0;
      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
      startSel = doc.sel;
    } else if (ourIndex == -1) {
      ourIndex = ranges.length;
      setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
                   {scroll: false, origin: "*mouse"});
    } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
      setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0));
      startSel = doc.sel;
    } else {
      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
    }

    var lastPos = start;
    function extendTo(pos) {
      if (cmp(lastPos, pos) == 0) return;
      lastPos = pos;

      if (type == "rect") {
        var ranges = [], tabSize = cm.options.tabSize;
        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
             line <= end; line++) {
          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
          if (left == right)
            ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
          else if (text.length > leftPos)
            ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
        }
        if (!ranges.length) ranges.push(new Range(start, start));
        setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
                     {origin: "*mouse", scroll: false});
        cm.scrollIntoView(pos);
      } else {
        var oldRange = ourRange;
        var anchor = oldRange.anchor, head = pos;
        if (type != "single") {
          if (type == "double")
            var range = cm.findWordAt(pos);
          else
            var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
          if (cmp(range.anchor, anchor) > 0) {
            head = range.head;
            anchor = minPos(oldRange.from(), range.anchor);
          } else {
            head = range.anchor;
            anchor = maxPos(oldRange.to(), range.head);
          }
        }
        var ranges = startSel.ranges.slice(0);
        ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
        setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
      }
    }

    var editorSize = display.wrapper.getBoundingClientRect();
    // Used to ensure timeout re-tries don't fire when another extend
    // happened in the meantime (clearTimeout isn't reliable -- at
    // least on Chrome, the timeouts still happen even when cleared,
    // if the clear happens after their scheduled firing time).
    var counter = 0;

    function extend(e) {
      var curCount = ++counter;
      var cur = posFromMouse(cm, e, true, type == "rect");
      if (!cur) return;
      if (cmp(cur, lastPos) != 0) {
        cm.curOp.focus = activeElt();
        extendTo(cur);
        var visible = visibleLines(display, doc);
        if (cur.line >= visible.to || cur.line < visible.from)
          setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
      } else {
        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
        if (outside) setTimeout(operation(cm, function() {
          if (counter != curCount) return;
          display.scroller.scrollTop += outside;
          extend(e);
        }), 50);
      }
    }

    function done(e) {
      counter = Infinity;
      e_preventDefault(e);
      display.input.focus();
      off(document, "mousemove", move);
      off(document, "mouseup", up);
      doc.history.lastSelOrigin = null;
    }

    var move = operation(cm, function(e) {
      if (!e_button(e)) done(e);
      else extend(e);
    });
    var up = operation(cm, done);
    on(document, "mousemove", move);
    on(document, "mouseup", up);
  }

  // Determines whether an event happened in the gutter, and fires the
  // handlers for the corresponding event.
  function gutterEvent(cm, e, type, prevent, signalfn) {
    try { var mX = e.clientX, mY = e.clientY; }
    catch(e) { return false; }
    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
    if (prevent) e_preventDefault(e);

    var display = cm.display;
    var lineBox = display.lineDiv.getBoundingClientRect();

    if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
    mY -= lineBox.top - display.viewOffset;

    for (var i = 0; i < cm.options.gutters.length; ++i) {
      var g = display.gutters.childNodes[i];
      if (g && g.getBoundingClientRect().right >= mX) {
        var line = lineAtHeight(cm.doc, mY);
        var gutter = cm.options.gutters[i];
        signalfn(cm, type, cm, line, gutter, e);
        return e_defaultPrevented(e);
      }
    }
  }

  function clickInGutter(cm, e) {
    return gutterEvent(cm, e, "gutterClick", true, signalLater);
  }

  // Kludge to work around strange IE behavior where it'll sometimes
  // re-fire a series of drag-related events right after the drop (#1551)
  var lastDrop = 0;

  function onDrop(e) {
    var cm = this;
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
      return;
    e_preventDefault(e);
    if (ie) lastDrop = +new Date;
    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
    if (!pos || isReadOnly(cm)) return;
    // Might be a file drop, in which case we simply extract the text
    // and insert it.
    if (files && files.length && window.FileReader && window.File) {
      var n = files.length, text = Array(n), read = 0;
      var loadFile = function(file, i) {
        var reader = new FileReader;
        reader.onload = operation(cm, function() {
          text[i] = reader.result;
          if (++read == n) {
            pos = clipPos(cm.doc, pos);
            var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"};
            makeChange(cm.doc, change);
            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
          }
        });
        reader.readAsText(file);
      };
      for (var i = 0; i < n; ++i) loadFile(files[i], i);
    } else { // Normal drop
      // Don't do a replace if the drop happened inside of the selected text.
      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
        cm.state.draggingText(e);
        // Ensure the editor is re-focused
        setTimeout(function() {cm.display.input.focus();}, 20);
        return;
      }
      try {
        var text = e.dataTransfer.getData("Text");
        if (text) {
          if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
            var selected = cm.listSelections();
          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
          if (selected) for (var i = 0; i < selected.length; ++i)
            replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
          cm.replaceSelection(text, "around", "paste");
          cm.display.input.focus();
        }
      }
      catch(e){}
    }
  }

  function onDragStart(cm, e) {
    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;

    e.dataTransfer.setData("Text", cm.getSelection());

    // Use dummy image instead of default browsers image.
    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
    if (e.dataTransfer.setDragImage && !safari) {
      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
      if (presto) {
        img.width = img.height = 1;
        cm.display.wrapper.appendChild(img);
        // Force a relayout, or Opera won't use our image for some obscure reason
        img._top = img.offsetTop;
      }
      e.dataTransfer.setDragImage(img, 0, 0);
      if (presto) img.parentNode.removeChild(img);
    }
  }

  // SCROLL EVENTS

  // Sync the scrollable area and scrollbars, ensure the viewport
  // covers the visible area.
  function setScrollTop(cm, val) {
    if (Math.abs(cm.doc.scrollTop - val) < 2) return;
    cm.doc.scrollTop = val;
    if (!gecko) updateDisplaySimple(cm, {top: val});
    if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
    cm.display.scrollbars.setScrollTop(val);
    if (gecko) updateDisplaySimple(cm);
    startWorker(cm, 100);
  }
  // Sync scroller and scrollbar, ensure the gutter elements are
  // aligned.
  function setScrollLeft(cm, val, isScroller) {
    if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
    cm.doc.scrollLeft = val;
    alignHorizontally(cm);
    if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
    cm.display.scrollbars.setScrollLeft(val);
  }

  // Since the delta values reported on mouse wheel events are
  // unstandardized between browsers and even browser versions, and
  // generally horribly unpredictable, this code starts by measuring
  // the scroll effect that the first few mouse wheel events have,
  // and, from that, detects the way it can convert deltas to pixel
  // offsets afterwards.
  //
  // The reason we want to know the amount a wheel event will scroll
  // is that it gives us a chance to update the display before the
  // actual scrolling happens, reducing flickering.

  var wheelSamples = 0, wheelPixelsPerUnit = null;
  // Fill in a browser-detected starting value on browsers where we
  // know one. These don't have to be accurate -- the result of them
  // being wrong would just be a slight flicker on the first wheel
  // scroll (if it is large enough).
  if (ie) wheelPixelsPerUnit = -.53;
  else if (gecko) wheelPixelsPerUnit = 15;
  else if (chrome) wheelPixelsPerUnit = -.7;
  else if (safari) wheelPixelsPerUnit = -1/3;

  var wheelEventDelta = function(e) {
    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
    else if (dy == null) dy = e.wheelDelta;
    return {x: dx, y: dy};
  };
  CodeMirror.wheelEventPixels = function(e) {
    var delta = wheelEventDelta(e);
    delta.x *= wheelPixelsPerUnit;
    delta.y *= wheelPixelsPerUnit;
    return delta;
  };

  function onScrollWheel(cm, e) {
    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;

    var display = cm.display, scroll = display.scroller;
    // Quit if there's nothing to scroll here
    if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
          dy && scroll.scrollHeight > scroll.clientHeight)) return;

    // Webkit browsers on OS X abort momentum scrolls when the target
    // of the scroll event is removed from the scrollable element.
    // This hack (see related code in patchDisplay) makes sure the
    // element is kept around.
    if (dy && mac && webkit) {
      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
        for (var i = 0; i < view.length; i++) {
          if (view[i].node == cur) {
            cm.display.currentWheelTarget = cur;
            break outer;
          }
        }
      }
    }

    // On some browsers, horizontal scrolling will cause redraws to
    // happen before the gutter has been realigned, causing it to
    // wriggle around in a most unseemly way. When we have an
    // estimated pixels/delta value, we just handle horizontal
    // scrolling entirely here. It'll be slightly off from native, but
    // better than glitching out.
    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
      if (dy)
        setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
      setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
      e_preventDefault(e);
      display.wheelStartX = null; // Abort measurement, if in progress
      return;
    }

    // 'Project' the visible viewport to cover the area that is being
    // scrolled into view (if we know enough to estimate it).
    if (dy && wheelPixelsPerUnit != null) {
      var pixels = dy * wheelPixelsPerUnit;
      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
      if (pixels < 0) top = Math.max(0, top + pixels - 50);
      else bot = Math.min(cm.doc.height, bot + pixels + 50);
      updateDisplaySimple(cm, {top: top, bottom: bot});
    }

    if (wheelSamples < 20) {
      if (display.wheelStartX == null) {
        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
        display.wheelDX = dx; display.wheelDY = dy;
        setTimeout(function() {
          if (display.wheelStartX == null) return;
          var movedX = scroll.scrollLeft - display.wheelStartX;
          var movedY = scroll.scrollTop - display.wheelStartY;
          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
            (movedX && display.wheelDX && movedX / display.wheelDX);
          display.wheelStartX = display.wheelStartY = null;
          if (!sample) return;
          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
          ++wheelSamples;
        }, 200);
      } else {
        display.wheelDX += dx; display.wheelDY += dy;
      }
    }
  }

  // KEY EVENTS

  // Run a handler that was bound to a key.
  function doHandleBinding(cm, bound, dropShift) {
    if (typeof bound == "string") {
      bound = commands[bound];
      if (!bound) return false;
    }
    // Ensure previous input has been read, so that the handler sees a
    // consistent view of the document
    cm.display.input.ensurePolled();
    var prevShift = cm.display.shift, done = false;
    try {
      if (isReadOnly(cm)) cm.state.suppressEdits = true;
      if (dropShift) cm.display.shift = false;
      done = bound(cm) != Pass;
    } finally {
      cm.display.shift = prevShift;
      cm.state.suppressEdits = false;
    }
    return done;
  }

  function lookupKeyForEditor(cm, name, handle) {
    for (var i = 0; i < cm.state.keyMaps.length; i++) {
      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
      if (result) return result;
    }
    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
      || lookupKey(name, cm.options.keyMap, handle, cm);
  }

  var stopSeq = new Delayed;
  function dispatchKey(cm, name, e, handle) {
    var seq = cm.state.keySeq;
    if (seq) {
      if (isModifierKey(name)) return "handled";
      stopSeq.set(50, function() {
        if (cm.state.keySeq == seq) {
          cm.state.keySeq = null;
          cm.display.input.reset();
        }
      });
      name = seq + " " + name;
    }
    var result = lookupKeyForEditor(cm, name, handle);

    if (result == "multi")
      cm.state.keySeq = name;
    if (result == "handled")
      signalLater(cm, "keyHandled", cm, name, e);

    if (result == "handled" || result == "multi") {
      e_preventDefault(e);
      restartBlink(cm);
    }

    if (seq && !result && /\'$/.test(name)) {
      e_preventDefault(e);
      return true;
    }
    return !!result;
  }

  // Handle a key from the keydown event.
  function handleKeyBinding(cm, e) {
    var name = keyName(e, true);
    if (!name) return false;

    if (e.shiftKey && !cm.state.keySeq) {
      // First try to resolve full name (including 'Shift-'). Failing
      // that, see if there is a cursor-motion command (starting with
      // 'go') bound to the keyname without 'Shift-'.
      return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
          || dispatchKey(cm, name, e, function(b) {
               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
                 return doHandleBinding(cm, b);
             });
    } else {
      return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
    }
  }

  // Handle a key from the keypress event
  function handleCharBinding(cm, e, ch) {
    return dispatchKey(cm, "'" + ch + "'", e,
                       function(b) { return doHandleBinding(cm, b, true); });
  }

  var lastStoppedKey = null;
  function onKeyDown(e) {
    var cm = this;
    cm.curOp.focus = activeElt();
    if (signalDOMEvent(cm, e)) return;
    // IE does strange things with escape.
    if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
    var code = e.keyCode;
    cm.display.shift = code == 16 || e.shiftKey;
    var handled = handleKeyBinding(cm, e);
    if (presto) {
      lastStoppedKey = handled ? code : null;
      // Opera has no cut event... we try to at least catch the key combo
      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
        cm.replaceSelection("", null, "cut");
    }

    // Turn mouse into crosshair when Alt is held on Mac.
    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
      showCrossHair(cm);
  }

  function showCrossHair(cm) {
    var lineDiv = cm.display.lineDiv;
    addClass(lineDiv, "CodeMirror-crosshair");

    function up(e) {
      if (e.keyCode == 18 || !e.altKey) {
        rmClass(lineDiv, "CodeMirror-crosshair");
        off(document, "keyup", up);
        off(document, "mouseover", up);
      }
    }
    on(document, "keyup", up);
    on(document, "mouseover", up);
  }

  function onKeyUp(e) {
    if (e.keyCode == 16) this.doc.sel.shift = false;
    signalDOMEvent(this, e);
  }

  function onKeyPress(e) {
    var cm = this;
    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
    var keyCode = e.keyCode, charCode = e.charCode;
    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
    if (handleCharBinding(cm, e, ch)) return;
    cm.display.input.onKeyPress(e);
  }

  // FOCUS/BLUR EVENTS

  function delayBlurEvent(cm) {
    cm.state.delayingBlurEvent = true;
    setTimeout(function() {
      if (cm.state.delayingBlurEvent) {
        cm.state.delayingBlurEvent = false;
        onBlur(cm);
      }
    }, 100);
  }

  function onFocus(cm) {
    if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;

    if (cm.options.readOnly == "nocursor") return;
    if (!cm.state.focused) {
      signal(cm, "focus", cm);
      cm.state.focused = true;
      addClass(cm.display.wrapper, "CodeMirror-focused");
      // This test prevents this from firing when a context
      // menu is closed (since the input reset would kill the
      // select-all detection hack)
      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
        cm.display.input.reset();
        if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
      }
      cm.display.input.receivedFocus();
    }
    restartBlink(cm);
  }
  function onBlur(cm) {
    if (cm.state.delayingBlurEvent) return;

    if (cm.state.focused) {
      signal(cm, "blur", cm);
      cm.state.focused = false;
      rmClass(cm.display.wrapper, "CodeMirror-focused");
    }
    clearInterval(cm.display.blinker);
    setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
  }

  // CONTEXT MENU HANDLING

  // To make the context menu work, we need to briefly unhide the
  // textarea (making it as unobtrusive as possible) to let the
  // right-click take effect on it.
  function onContextMenu(cm, e) {
    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
    cm.display.input.onContextMenu(e);
  }

  function contextMenuInGutter(cm, e) {
    if (!hasHandler(cm, "gutterContextMenu")) return false;
    return gutterEvent(cm, e, "gutterContextMenu", false, signal);
  }

  // UPDATING

  // Compute the position of the end of a change (its 'to' property
  // refers to the pre-change end).
  var changeEnd = CodeMirror.changeEnd = function(change) {
    if (!change.text) return change.to;
    return Pos(change.from.line + change.text.length - 1,
               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
  };

  // Adjust a position to refer to the post-change position of the
  // same text, or the end of the change if the change covers it.
  function adjustForChange(pos, change) {
    if (cmp(pos, change.from) < 0) return pos;
    if (cmp(pos, change.to) <= 0) return changeEnd(change);

    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
    if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
    return Pos(line, ch);
  }

  function computeSelAfterChange(doc, change) {
    var out = [];
    for (var i = 0; i < doc.sel.ranges.length; i++) {
      var range = doc.sel.ranges[i];
      out.push(new Range(adjustForChange(range.anchor, change),
                         adjustForChange(range.head, change)));
    }
    return normalizeSelection(out, doc.sel.primIndex);
  }

  function offsetPos(pos, old, nw) {
    if (pos.line == old.line)
      return Pos(nw.line, pos.ch - old.ch + nw.ch);
    else
      return Pos(nw.line + (pos.line - old.line), pos.ch);
  }

  // Used by replaceSelections to allow moving the selection to the
  // start or around the replaced test. Hint may be "start" or "around".
  function computeReplacedSel(doc, changes, hint) {
    var out = [];
    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
    for (var i = 0; i < changes.length; i++) {
      var change = changes[i];
      var from = offsetPos(change.from, oldPrev, newPrev);
      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
      oldPrev = change.to;
      newPrev = to;
      if (hint == "around") {
        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
        out[i] = new Range(inv ? to : from, inv ? from : to);
      } else {
        out[i] = new Range(from, from);
      }
    }
    return new Selection(out, doc.sel.primIndex);
  }

  // Allow "beforeChange" event handlers to influence a change
  function filterChange(doc, change, update) {
    var obj = {
      canceled: false,
      from: change.from,
      to: change.to,
      text: change.text,
      origin: change.origin,
      cancel: function() { this.canceled = true; }
    };
    if (update) obj.update = function(from, to, text, origin) {
      if (from) this.from = clipPos(doc, from);
      if (to) this.to = clipPos(doc, to);
      if (text) this.text = text;
      if (origin !== undefined) this.origin = origin;
    };
    signal(doc, "beforeChange", doc, obj);
    if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);

    if (obj.canceled) return null;
    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
  }

  // Apply a change to a document, and add it to the document's
  // history, and propagating it to all linked documents.
  function makeChange(doc, change, ignoreReadOnly) {
    if (doc.cm) {
      if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
      if (doc.cm.state.suppressEdits) return;
    }

    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
      change = filterChange(doc, change, true);
      if (!change) return;
    }

    // Possibly split or suppress the update based on the presence
    // of read-only spans in its range.
    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
    if (split) {
      for (var i = split.length - 1; i >= 0; --i)
        makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
    } else {
      makeChangeInner(doc, change);
    }
  }

  function makeChangeInner(doc, change) {
    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
    var selAfter = computeSelAfterChange(doc, change);
    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
    var rebased = [];

    linkedDocs(doc, function(doc, sharedHist) {
      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
        rebaseHist(doc.history, change);
        rebased.push(doc.history);
      }
      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
    });
  }

  // Revert a change stored in a document's history.
  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
    if (doc.cm && doc.cm.state.suppressEdits) return;

    var hist = doc.history, event, selAfter = doc.sel;
    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

    // Verify that there is a useable event (so that ctrl-z won't
    // needlessly clear selection events)
    for (var i = 0; i < source.length; i++) {
      event = source[i];
      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
        break;
    }
    if (i == source.length) return;
    hist.lastOrigin = hist.lastSelOrigin = null;

    for (;;) {
      event = source.pop();
      if (event.ranges) {
        pushSelectionToHistory(event, dest);
        if (allowSelectionOnly && !event.equals(doc.sel)) {
          setSelection(doc, event, {clearRedo: false});
          return;
        }
        selAfter = event;
      }
      else break;
    }

    // Build up a reverse change object to add to the opposite history
    // stack (redo when undoing, and vice versa).
    var antiChanges = [];
    pushSelectionToHistory(selAfter, dest);
    dest.push({changes: antiChanges, generation: hist.generation});
    hist.generation = event.generation || ++hist.maxGeneration;

    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

    for (var i = event.changes.length - 1; i >= 0; --i) {
      var change = event.changes[i];
      change.origin = type;
      if (filter && !filterChange(doc, change, false)) {
        source.length = 0;
        return;
      }

      antiChanges.push(historyChangeFromChange(doc, change));

      var after = i ? computeSelAfterChange(doc, change) : lst(source);
      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
      if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
      var rebased = [];

      // Propagate to the linked documents
      linkedDocs(doc, function(doc, sharedHist) {
        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
          rebaseHist(doc.history, change);
          rebased.push(doc.history);
        }
        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
      });
    }
  }

  // Sub-views need their line numbers shifted when text is added
  // above or below them in the parent document.
  function shiftDoc(doc, distance) {
    if (distance == 0) return;
    doc.first += distance;
    doc.sel = new Selection(map(doc.sel.ranges, function(range) {
      return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
                       Pos(range.head.line + distance, range.head.ch));
    }), doc.sel.primIndex);
    if (doc.cm) {
      regChange(doc.cm, doc.first, doc.first - distance, distance);
      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
        regLineChange(doc.cm, l, "gutter");
    }
  }

  // More lower-level change function, handling only a single document
  // (not linked ones).
  function makeChangeSingleDoc(doc, change, selAfter, spans) {
    if (doc.cm && !doc.cm.curOp)
      return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);

    if (change.to.line < doc.first) {
      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
      return;
    }
    if (change.from.line > doc.lastLine()) return;

    // Clip the change to the size of this doc
    if (change.from.line < doc.first) {
      var shift = change.text.length - 1 - (doc.first - change.from.line);
      shiftDoc(doc, shift);
      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
                text: [lst(change.text)], origin: change.origin};
    }
    var last = doc.lastLine();
    if (change.to.line > last) {
      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
                text: [change.text[0]], origin: change.origin};
    }

    change.removed = getBetween(doc, change.from, change.to);

    if (!selAfter) selAfter = computeSelAfterChange(doc, change);
    if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
    else updateDoc(doc, change, spans);
    setSelectionNoUndo(doc, selAfter, sel_dontScroll);
  }

  // Handle the interaction of a change to a document with the editor
  // that this document is part of.
  function makeChangeSingleDocInEditor(cm, change, spans) {
    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

    var recomputeMaxLength = false, checkWidthStart = from.line;
    if (!cm.options.lineWrapping) {
      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
      doc.iter(checkWidthStart, to.line + 1, function(line) {
        if (line == display.maxLine) {
          recomputeMaxLength = true;
          return true;
        }
      });
    }

    if (doc.sel.contains(change.from, change.to) > -1)
      signalCursorActivity(cm);

    updateDoc(doc, change, spans, estimateHeight(cm));

    if (!cm.options.lineWrapping) {
      doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
        var len = lineLength(line);
        if (len > display.maxLineLength) {
          display.maxLine = line;
          display.maxLineLength = len;
          display.maxLineChanged = true;
          recomputeMaxLength = false;
        }
      });
      if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
    }

    // Adjust frontier, schedule worker
    doc.frontier = Math.min(doc.frontier, from.line);
    startWorker(cm, 400);

    var lendiff = change.text.length - (to.line - from.line) - 1;
    // Remember that these lines changed, for updating the display
    if (change.full)
      regChange(cm);
    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
      regLineChange(cm, from.line, "text");
    else
      regChange(cm, from.line, to.line + 1, lendiff);

    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
    if (changeHandler || changesHandler) {
      var obj = {
        from: from, to: to,
        text: change.text,
        removed: change.removed,
        origin: change.origin
      };
      if (changeHandler) signalLater(cm, "change", cm, obj);
      if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
    }
    cm.display.selForContextMenu = null;
  }

  function replaceRange(doc, code, from, to, origin) {
    if (!to) to = from;
    if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
    if (typeof code == "string") code = splitLines(code);
    makeChange(doc, {from: from, to: to, text: code, origin: origin});
  }

  // SCROLLING THINGS INTO VIEW

  // If an editor sits on the top or bottom of the window, partially
  // scrolled out of view, this ensures that the cursor is visible.
  function maybeScrollWindow(cm, coords) {
    if (signalDOMEvent(cm, "scrollCursorIntoView")) return;

    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
    if (coords.top + box.top < 0) doScroll = true;
    else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
    if (doScroll != null && !phantom) {
      var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
                           (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
                           (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
                           coords.left + "px; width: 2px;");
      cm.display.lineSpace.appendChild(scrollNode);
      scrollNode.scrollIntoView(doScroll);
      cm.display.lineSpace.removeChild(scrollNode);
    }
  }

  // Scroll a given position into view (immediately), verifying that
  // it actually became visible (as line heights are accurately
  // measured, the position of something may 'drift' during drawing).
  function scrollPosIntoView(cm, pos, end, margin) {
    if (margin == null) margin = 0;
    for (var limit = 0; limit < 5; limit++) {
      var changed = false, coords = cursorCoords(cm, pos);
      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
      var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
                                         Math.min(coords.top, endCoords.top) - margin,
                                         Math.max(coords.left, endCoords.left),
                                         Math.max(coords.bottom, endCoords.bottom) + margin);
      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
      if (scrollPos.scrollTop != null) {
        setScrollTop(cm, scrollPos.scrollTop);
        if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
      }
      if (scrollPos.scrollLeft != null) {
        setScrollLeft(cm, scrollPos.scrollLeft);
        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
      }
      if (!changed) break;
    }
    return coords;
  }

  // Scroll a given set of coordinates into view (immediately).
  function scrollIntoView(cm, x1, y1, x2, y2) {
    var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
    if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
    if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
  }

  // Calculate a new scroll position needed to scroll the given
  // rectangle into view. Returns an object with scrollTop and
  // scrollLeft properties. When these are undefined, the
  // vertical/horizontal position does not need to be adjusted.
  function calculateScrollPos(cm, x1, y1, x2, y2) {
    var display = cm.display, snapMargin = textHeight(cm.display);
    if (y1 < 0) y1 = 0;
    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
    var screen = displayHeight(cm), result = {};
    if (y2 - y1 > screen) y2 = y1 + screen;
    var docBottom = cm.doc.height + paddingVert(display);
    var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
    if (y1 < screentop) {
      result.scrollTop = atTop ? 0 : y1;
    } else if (y2 > screentop + screen) {
      var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
      if (newTop != screentop) result.scrollTop = newTop;
    }

    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
    var tooWide = x2 - x1 > screenw;
    if (tooWide) x2 = x1 + screenw;
    if (x1 < 10)
      result.scrollLeft = 0;
    else if (x1 < screenleft)
      result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
    else if (x2 > screenw + screenleft - 3)
      result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
    return result;
  }

  // Store a relative adjustment to the scroll position in the current
  // operation (to be applied when the operation finishes).
  function addToScrollPos(cm, left, top) {
    if (left != null || top != null) resolveScrollToPos(cm);
    if (left != null)
      cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
    if (top != null)
      cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
  }

  // Make sure that at the end of the operation the current cursor is
  // shown.
  function ensureCursorVisible(cm) {
    resolveScrollToPos(cm);
    var cur = cm.getCursor(), from = cur, to = cur;
    if (!cm.options.lineWrapping) {
      from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
      to = Pos(cur.line, cur.ch + 1);
    }
    cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
  }

  // When an operation has its scrollToPos property set, and another
  // scroll action is applied before the end of the operation, this
  // 'simulates' scrolling that position into view in a cheap way, so
  // that the effect of intermediate scroll commands is not ignored.
  function resolveScrollToPos(cm) {
    var range = cm.curOp.scrollToPos;
    if (range) {
      cm.curOp.scrollToPos = null;
      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
      var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
                                    Math.min(from.top, to.top) - range.margin,
                                    Math.max(from.right, to.right),
                                    Math.max(from.bottom, to.bottom) + range.margin);
      cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
    }
  }

  // API UTILITIES

  // Indent the given line. The how parameter can be "smart",
  // "add"/null, "subtract", or "prev". When aggressive is false
  // (typically set to true for forced single-line indents), empty
  // lines are not indented, and places where the mode returns Pass
  // are left alone.
  function indentLine(cm, n, how, aggressive) {
    var doc = cm.doc, state;
    if (how == null) how = "add";
    if (how == "smart") {
      // Fall back to "prev" when the mode doesn't have an indentation
      // method.
      if (!doc.mode.indent) how = "prev";
      else state = getStateBefore(cm, n);
    }

    var tabSize = cm.options.tabSize;
    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
    if (line.stateAfter) line.stateAfter = null;
    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
    if (!aggressive && !/\S/.test(line.text)) {
      indentation = 0;
      how = "not";
    } else if (how == "smart") {
      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
      if (indentation == Pass || indentation > 150) {
        if (!aggressive) return;
        how = "prev";
      }
    }
    if (how == "prev") {
      if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
      else indentation = 0;
    } else if (how == "add") {
      indentation = curSpace + cm.options.indentUnit;
    } else if (how == "subtract") {
      indentation = curSpace - cm.options.indentUnit;
    } else if (typeof how == "number") {
      indentation = curSpace + how;
    }
    indentation = Math.max(0, indentation);

    var indentString = "", pos = 0;
    if (cm.options.indentWithTabs)
      for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
    if (pos < indentation) indentString += spaceStr(indentation - pos);

    if (indentString != curSpaceString) {
      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
      line.stateAfter = null;
      return true;
    } else {
      // Ensure that, if the cursor was in the whitespace at the start
      // of the line, it is moved to the end of that space.
      for (var i = 0; i < doc.sel.ranges.length; i++) {
        var range = doc.sel.ranges[i];
        if (range.head.line == n && range.head.ch < curSpaceString.length) {
          var pos = Pos(n, curSpaceString.length);
          replaceOneSelection(doc, i, new Range(pos, pos));
          break;
        }
      }
    }
  }

  // Utility for applying a change to a line by handle or number,
  // returning the number and optionally registering the line as
  // changed.
  function changeLine(doc, handle, changeType, op) {
    var no = handle, line = handle;
    if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
    else no = lineNo(handle);
    if (no == null) return null;
    if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
    return line;
  }

  // Helper for deleting text near the selection(s), used to implement
  // backspace, delete, and similar functionality.
  function deleteNearSelection(cm, compute) {
    var ranges = cm.doc.sel.ranges, kill = [];
    // Build up a set of ranges to kill first, merging overlapping
    // ranges.
    for (var i = 0; i < ranges.length; i++) {
      var toKill = compute(ranges[i]);
      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
        var replaced = kill.pop();
        if (cmp(replaced.from, toKill.from) < 0) {
          toKill.from = replaced.from;
          break;
        }
      }
      kill.push(toKill);
    }
    // Next, remove those actual ranges.
    runInOp(cm, function() {
      for (var i = kill.length - 1; i >= 0; i--)
        replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
      ensureCursorVisible(cm);
    });
  }

  // Used for horizontal relative motion. Dir is -1 or 1 (left or
  // right), unit can be "char", "column" (like char, but doesn't
  // cross line boundaries), "word" (across next word), or "group" (to
  // the start of next group of word or non-word-non-whitespace
  // chars). The visually param controls whether, in right-to-left
  // text, direction 1 means to move towards the next index in the
  // string, or towards the character to the right of the current
  // position. The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosH(doc, pos, dir, unit, visually) {
    var line = pos.line, ch = pos.ch, origDir = dir;
    var lineObj = getLine(doc, line);
    var possible = true;
    function findNextLine() {
      var l = line + dir;
      if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
      line = l;
      return lineObj = getLine(doc, l);
    }
    function moveOnce(boundToLine) {
      var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
      if (next == null) {
        if (!boundToLine && findNextLine()) {
          if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
          else ch = dir < 0 ? lineObj.text.length : 0;
        } else return (possible = false);
      } else ch = next;
      return true;
    }

    if (unit == "char") moveOnce();
    else if (unit == "column") moveOnce(true);
    else if (unit == "word" || unit == "group") {
      var sawType = null, group = unit == "group";
      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
      for (var first = true;; first = false) {
        if (dir < 0 && !moveOnce(!first)) break;
        var cur = lineObj.text.charAt(ch) || "\n";
        var type = isWordChar(cur, helper) ? "w"
          : group && cur == "\n" ? "n"
          : !group || /\s/.test(cur) ? null
          : "p";
        if (group && !first && !type) type = "s";
        if (sawType && sawType != type) {
          if (dir < 0) {dir = 1; moveOnce();}
          break;
        }

        if (type) sawType = type;
        if (dir > 0 && !moveOnce(!first)) break;
      }
    }
    var result = skipAtomic(doc, Pos(line, ch), origDir, true);
    if (!possible) result.hitSide = true;
    return result;
  }

  // For relative vertical movement. Dir may be -1 or 1. Unit can be
  // "page" or "line". The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosV(cm, pos, dir, unit) {
    var doc = cm.doc, x = pos.left, y;
    if (unit == "page") {
      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
      y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
    } else if (unit == "line") {
      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
    }
    for (;;) {
      var target = coordsChar(cm, x, y);
      if (!target.outside) break;
      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
      y += dir * 5;
    }
    return target;
  }

  // EDITOR METHODS

  // The publicly visible API. Note that methodOp(f) means
  // 'wrap f in an operation, performed on its `this` parameter'.

  // This is not the complete set of editor methods. Most of the
  // methods defined on the Doc type are also injected into
  // CodeMirror.prototype, for backwards compatibility and
  // convenience.

  CodeMirror.prototype = {
    constructor: CodeMirror,
    focus: function(){window.focus(); this.display.input.focus();},

    setOption: function(option, value) {
      var options = this.options, old = options[option];
      if (options[option] == value && option != "mode") return;
      options[option] = value;
      if (optionHandlers.hasOwnProperty(option))
        operation(this, optionHandlers[option])(this, value, old);
    },

    getOption: function(option) {return this.options[option];},
    getDoc: function() {return this.doc;},

    addKeyMap: function(map, bottom) {
      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
    },
    removeKeyMap: function(map) {
      var maps = this.state.keyMaps;
      for (var i = 0; i < maps.length; ++i)
        if (maps[i] == map || maps[i].name == map) {
          maps.splice(i, 1);
          return true;
        }
    },

    addOverlay: methodOp(function(spec, options) {
      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
      if (mode.startState) throw new Error("Overlays may not be stateful.");
      this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
      this.state.modeGen++;
      regChange(this);
    }),
    removeOverlay: methodOp(function(spec) {
      var overlays = this.state.overlays;
      for (var i = 0; i < overlays.length; ++i) {
        var cur = overlays[i].modeSpec;
        if (cur == spec || typeof spec == "string" && cur.name == spec) {
          overlays.splice(i, 1);
          this.state.modeGen++;
          regChange(this);
          return;
        }
      }
    }),

    indentLine: methodOp(function(n, dir, aggressive) {
      if (typeof dir != "string" && typeof dir != "number") {
        if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
        else dir = dir ? "add" : "subtract";
      }
      if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
    }),
    indentSelection: methodOp(function(how) {
      var ranges = this.doc.sel.ranges, end = -1;
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (!range.empty()) {
          var from = range.from(), to = range.to();
          var start = Math.max(end, from.line);
          end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
          for (var j = start; j < end; ++j)
            indentLine(this, j, how);
          var newRanges = this.doc.sel.ranges;
          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
            replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
        } else if (range.head.line > end) {
          indentLine(this, range.head.line, how, true);
          end = range.head.line;
          if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
        }
      }
    }),

    // Fetch the parser token for a given character. Useful for hacks
    // that want to inspect the mode state (say, for completion).
    getTokenAt: function(pos, precise) {
      return takeToken(this, pos, precise);
    },

    getLineTokens: function(line, precise) {
      return takeToken(this, Pos(line), precise, true);
    },

    getTokenTypeAt: function(pos) {
      pos = clipPos(this.doc, pos);
      var styles = getLineStyles(this, getLine(this.doc, pos.line));
      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
      var type;
      if (ch == 0) type = styles[2];
      else for (;;) {
        var mid = (before + after) >> 1;
        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
        else if (styles[mid * 2 + 1] < ch) before = mid + 1;
        else { type = styles[mid * 2 + 2]; break; }
      }
      var cut = type ? type.indexOf("cm-overlay ") : -1;
      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
    },

    getModeAt: function(pos) {
      var mode = this.doc.mode;
      if (!mode.innerMode) return mode;
      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
    },

    getHelper: function(pos, type) {
      return this.getHelpers(pos, type)[0];
    },

    getHelpers: function(pos, type) {
      var found = [];
      if (!helpers.hasOwnProperty(type)) return found;
      var help = helpers[type], mode = this.getModeAt(pos);
      if (typeof mode[type] == "string") {
        if (help[mode[type]]) found.push(help[mode[type]]);
      } else if (mode[type]) {
        for (var i = 0; i < mode[type].length; i++) {
          var val = help[mode[type][i]];
          if (val) found.push(val);
        }
      } else if (mode.helperType && help[mode.helperType]) {
        found.push(help[mode.helperType]);
      } else if (help[mode.name]) {
        found.push(help[mode.name]);
      }
      for (var i = 0; i < help._global.length; i++) {
        var cur = help._global[i];
        if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
          found.push(cur.val);
      }
      return found;
    },

    getStateAfter: function(line, precise) {
      var doc = this.doc;
      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
      return getStateBefore(this, line + 1, precise);
    },

    cursorCoords: function(start, mode) {
      var pos, range = this.doc.sel.primary();
      if (start == null) pos = range.head;
      else if (typeof start == "object") pos = clipPos(this.doc, start);
      else pos = start ? range.from() : range.to();
      return cursorCoords(this, pos, mode || "page");
    },

    charCoords: function(pos, mode) {
      return charCoords(this, clipPos(this.doc, pos), mode || "page");
    },

    coordsChar: function(coords, mode) {
      coords = fromCoordSystem(this, coords, mode || "page");
      return coordsChar(this, coords.left, coords.top);
    },

    lineAtHeight: function(height, mode) {
      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
      return lineAtHeight(this.doc, height + this.display.viewOffset);
    },
    heightAtLine: function(line, mode) {
      var end = false, lineObj;
      if (typeof line == "number") {
        var last = this.doc.first + this.doc.size - 1;
        if (line < this.doc.first) line = this.doc.first;
        else if (line > last) { line = last; end = true; }
        lineObj = getLine(this.doc, line);
      } else {
        lineObj = line;
      }
      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
        (end ? this.doc.height - heightAtLine(lineObj) : 0);
    },

    defaultTextHeight: function() { return textHeight(this.display); },
    defaultCharWidth: function() { return charWidth(this.display); },

    setGutterMarker: methodOp(function(line, gutterID, value) {
      return changeLine(this.doc, line, "gutter", function(line) {
        var markers = line.gutterMarkers || (line.gutterMarkers = {});
        markers[gutterID] = value;
        if (!value && isEmpty(markers)) line.gutterMarkers = null;
        return true;
      });
    }),

    clearGutter: methodOp(function(gutterID) {
      var cm = this, doc = cm.doc, i = doc.first;
      doc.iter(function(line) {
        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
          line.gutterMarkers[gutterID] = null;
          regLineChange(cm, i, "gutter");
          if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
        }
        ++i;
      });
    }),

    lineInfo: function(line) {
      if (typeof line == "number") {
        if (!isLine(this.doc, line)) return null;
        var n = line;
        line = getLine(this.doc, line);
        if (!line) return null;
      } else {
        var n = lineNo(line);
        if (n == null) return null;
      }
      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
              widgets: line.widgets};
    },

    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},

    addWidget: function(pos, node, scroll, vert, horiz) {
      var display = this.display;
      pos = cursorCoords(this, clipPos(this.doc, pos));
      var top = pos.bottom, left = pos.left;
      node.style.position = "absolute";
      node.setAttribute("cm-ignore-events", "true");
      this.display.input.setUneditable(node);
      display.sizer.appendChild(node);
      if (vert == "over") {
        top = pos.top;
      } else if (vert == "above" || vert == "near") {
        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
        // Default to positioning above (if specified and possible); otherwise default to positioning below
        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
          top = pos.top - node.offsetHeight;
        else if (pos.bottom + node.offsetHeight <= vspace)
          top = pos.bottom;
        if (left + node.offsetWidth > hspace)
          left = hspace - node.offsetWidth;
      }
      node.style.top = top + "px";
      node.style.left = node.style.right = "";
      if (horiz == "right") {
        left = display.sizer.clientWidth - node.offsetWidth;
        node.style.right = "0px";
      } else {
        if (horiz == "left") left = 0;
        else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
        node.style.left = left + "px";
      }
      if (scroll)
        scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
    },

    triggerOnKeyDown: methodOp(onKeyDown),
    triggerOnKeyPress: methodOp(onKeyPress),
    triggerOnKeyUp: onKeyUp,

    execCommand: function(cmd) {
      if (commands.hasOwnProperty(cmd))
        return commands[cmd](this);
    },

    triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

    findPosH: function(from, amount, unit, visually) {
      var dir = 1;
      if (amount < 0) { dir = -1; amount = -amount; }
      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
        cur = findPosH(this.doc, cur, dir, unit, visually);
        if (cur.hitSide) break;
      }
      return cur;
    },

    moveH: methodOp(function(dir, unit) {
      var cm = this;
      cm.extendSelectionsBy(function(range) {
        if (cm.display.shift || cm.doc.extend || range.empty())
          return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
        else
          return dir < 0 ? range.from() : range.to();
      }, sel_move);
    }),

    deleteH: methodOp(function(dir, unit) {
      var sel = this.doc.sel, doc = this.doc;
      if (sel.somethingSelected())
        doc.replaceSelection("", null, "+delete");
      else
        deleteNearSelection(this, function(range) {
          var other = findPosH(doc, range.head, dir, unit, false);
          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
        });
    }),

    findPosV: function(from, amount, unit, goalColumn) {
      var dir = 1, x = goalColumn;
      if (amount < 0) { dir = -1; amount = -amount; }
      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
        var coords = cursorCoords(this, cur, "div");
        if (x == null) x = coords.left;
        else coords.left = x;
        cur = findPosV(this, coords, dir, unit);
        if (cur.hitSide) break;
      }
      return cur;
    },

    moveV: methodOp(function(dir, unit) {
      var cm = this, doc = this.doc, goals = [];
      var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
      doc.extendSelectionsBy(function(range) {
        if (collapse)
          return dir < 0 ? range.from() : range.to();
        var headPos = cursorCoords(cm, range.head, "div");
        if (range.goalColumn != null) headPos.left = range.goalColumn;
        goals.push(headPos.left);
        var pos = findPosV(cm, headPos, dir, unit);
        if (unit == "page" && range == doc.sel.primary())
          addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
        return pos;
      }, sel_move);
      if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
        doc.sel.ranges[i].goalColumn = goals[i];
    }),

    // Find the word at the given position (as returned by coordsChar).
    findWordAt: function(pos) {
      var doc = this.doc, line = getLine(doc, pos.line).text;
      var start = pos.ch, end = pos.ch;
      if (line) {
        var helper = this.getHelper(pos, "wordChars");
        if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
        var startChar = line.charAt(start);
        var check = isWordChar(startChar, helper)
          ? function(ch) { return isWordChar(ch, helper); }
          : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
          : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
        while (start > 0 && check(line.charAt(start - 1))) --start;
        while (end < line.length && check(line.charAt(end))) ++end;
      }
      return new Range(Pos(pos.line, start), Pos(pos.line, end));
    },

    toggleOverwrite: function(value) {
      if (value != null && value == this.state.overwrite) return;
      if (this.state.overwrite = !this.state.overwrite)
        addClass(this.display.cursorDiv, "CodeMirror-overwrite");
      else
        rmClass(this.display.cursorDiv, "CodeMirror-overwrite");

      signal(this, "overwriteToggle", this, this.state.overwrite);
    },
    hasFocus: function() { return this.display.input.getField() == activeElt(); },

    scrollTo: methodOp(function(x, y) {
      if (x != null || y != null) resolveScrollToPos(this);
      if (x != null) this.curOp.scrollLeft = x;
      if (y != null) this.curOp.scrollTop = y;
    }),
    getScrollInfo: function() {
      var scroller = this.display.scroller;
      return {left: scroller.scrollLeft, top: scroller.scrollTop,
              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
              clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
    },

    scrollIntoView: methodOp(function(range, margin) {
      if (range == null) {
        range = {from: this.doc.sel.primary().head, to: null};
        if (margin == null) margin = this.options.cursorScrollMargin;
      } else if (typeof range == "number") {
        range = {from: Pos(range, 0), to: null};
      } else if (range.from == null) {
        range = {from: range, to: null};
      }
      if (!range.to) range.to = range.from;
      range.margin = margin || 0;

      if (range.from.line != null) {
        resolveScrollToPos(this);
        this.curOp.scrollToPos = range;
      } else {
        var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
                                      Math.min(range.from.top, range.to.top) - range.margin,
                                      Math.max(range.from.right, range.to.right),
                                      Math.max(range.from.bottom, range.to.bottom) + range.margin);
        this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
      }
    }),

    setSize: methodOp(function(width, height) {
      var cm = this;
      function interpret(val) {
        return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
      }
      if (width != null) cm.display.wrapper.style.width = interpret(width);
      if (height != null) cm.display.wrapper.style.height = interpret(height);
      if (cm.options.lineWrapping) clearLineMeasurementCache(this);
      var lineNo = cm.display.viewFrom;
      cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
        if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
          if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
        ++lineNo;
      });
      cm.curOp.forceUpdate = true;
      signal(cm, "refresh", this);
    }),

    operation: function(f){return runInOp(this, f);},

    refresh: methodOp(function() {
      var oldHeight = this.display.cachedTextHeight;
      regChange(this);
      this.curOp.forceUpdate = true;
      clearCaches(this);
      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
      updateGutterSpace(this);
      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
        estimateLineHeights(this);
      signal(this, "refresh", this);
    }),

    swapDoc: methodOp(function(doc) {
      var old = this.doc;
      old.cm = null;
      attachDoc(this, doc);
      clearCaches(this);
      this.display.input.reset();
      this.scrollTo(doc.scrollLeft, doc.scrollTop);
      this.curOp.forceScroll = true;
      signalLater(this, "swapDoc", this, old);
      return old;
    }),

    getInputField: function(){return this.display.input.getField();},
    getWrapperElement: function(){return this.display.wrapper;},
    getScrollerElement: function(){return this.display.scroller;},
    getGutterElement: function(){return this.display.gutters;}
  };
  eventMixin(CodeMirror);

  // OPTION DEFAULTS

  // The default configuration options.
  var defaults = CodeMirror.defaults = {};
  // Functions to run when options are changed.
  var optionHandlers = CodeMirror.optionHandlers = {};

  function option(name, deflt, handle, notOnInit) {
    CodeMirror.defaults[name] = deflt;
    if (handle) optionHandlers[name] =
      notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
  }

  // Passed to option handlers when there is no old value.
  var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};

  // These two are, on init, called from the constructor because they
  // have to be initialized before the editor can start at all.
  option("value", "", function(cm, val) {
    cm.setValue(val);
  }, true);
  option("mode", null, function(cm, val) {
    cm.doc.modeOption = val;
    loadMode(cm);
  }, true);

  option("indentUnit", 2, loadMode, true);
  option("indentWithTabs", false);
  option("smartIndent", true);
  option("tabSize", 4, function(cm) {
    resetModeState(cm);
    clearCaches(cm);
    regChange(cm);
  }, true);
  option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
    if (old != CodeMirror.Init) cm.refresh();
  });
  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
  option("electricChars", true);
  option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
    throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
  }, true);
  option("rtlMoveVisually", !windows);
  option("wholeLineUpdateBefore", true);

  option("theme", "default", function(cm) {
    themeChanged(cm);
    guttersChanged(cm);
  }, true);
  option("keyMap", "default", function(cm, val, old) {
    var next = getKeyMap(val);
    var prev = old != CodeMirror.Init && getKeyMap(old);
    if (prev && prev.detach) prev.detach(cm, next);
    if (next.attach) next.attach(cm, prev || null);
  });
  option("extraKeys", null);

  option("lineWrapping", false, wrappingChanged, true);
  option("gutters", [], function(cm) {
    setGuttersForLineNumbers(cm.options);
    guttersChanged(cm);
  }, true);
  option("fixedGutter", true, function(cm, val) {
    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
    cm.refresh();
  }, true);
  option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
  option("scrollbarStyle", "native", function(cm) {
    initScrollbars(cm);
    updateScrollbars(cm);
    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
  }, true);
  option("lineNumbers", false, function(cm) {
    setGuttersForLineNumbers(cm.options);
    guttersChanged(cm);
  }, true);
  option("firstLineNumber", 1, guttersChanged, true);
  option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
  option("showCursorWhenSelecting", false, updateSelection, true);

  option("resetSelectionOnContextMenu", true);
  option("lineWiseCopyCut", true);

  option("readOnly", false, function(cm, val) {
    if (val == "nocursor") {
      onBlur(cm);
      cm.display.input.blur();
      cm.display.disabled = true;
    } else {
      cm.display.disabled = false;
      if (!val) cm.display.input.reset();
    }
  });
  option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
  option("dragDrop", true, dragDropChanged);

  option("cursorBlinkRate", 530);
  option("cursorScrollMargin", 0);
  option("cursorHeight", 1, updateSelection, true);
  option("singleCursorHeightPerLine", true, updateSelection, true);
  option("workTime", 100);
  option("workDelay", 100);
  option("flattenSpans", true, resetModeState, true);
  option("addModeClass", false, resetModeState, true);
  option("pollInterval", 100);
  option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
  option("historyEventDelay", 1250);
  option("viewportMargin", 10, function(cm){cm.refresh();}, true);
  option("maxHighlightLength", 10000, resetModeState, true);
  option("moveInputWithCursor", true, function(cm, val) {
    if (!val) cm.display.input.resetPosition();
  });

  option("tabindex", null, function(cm, val) {
    cm.display.input.getField().tabIndex = val || "";
  });
  option("autofocus", null);

  // MODE DEFINITION AND QUERYING

  // Known modes, by name and by MIME
  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};

  // Extra arguments are stored as the mode's dependencies, which is
  // used by (legacy) mechanisms like loadmode.js to automatically
  // load a mode. (Preferred mechanism is the require/define calls.)
  CodeMirror.defineMode = function(name, mode) {
    if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
    if (arguments.length > 2)
      mode.dependencies = Array.prototype.slice.call(arguments, 2);
    modes[name] = mode;
  };

  CodeMirror.defineMIME = function(mime, spec) {
    mimeModes[mime] = spec;
  };

  // Given a MIME type, a {name, ...options} config object, or a name
  // string, return a mode config object.
  CodeMirror.resolveMode = function(spec) {
    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
      spec = mimeModes[spec];
    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
      var found = mimeModes[spec.name];
      if (typeof found == "string") found = {name: found};
      spec = createObj(found, spec);
      spec.name = found.name;
    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
      return CodeMirror.resolveMode("application/xml");
    }
    if (typeof spec == "string") return {name: spec};
    else return spec || {name: "null"};
  };

  // Given a mode spec (anything that resolveMode accepts), find and
  // initialize an actual mode object.
  CodeMirror.getMode = function(options, spec) {
    var spec = CodeMirror.resolveMode(spec);
    var mfactory = modes[spec.name];
    if (!mfactory) return CodeMirror.getMode(options, "text/plain");
    var modeObj = mfactory(options, spec);
    if (modeExtensions.hasOwnProperty(spec.name)) {
      var exts = modeExtensions[spec.name];
      for (var prop in exts) {
        if (!exts.hasOwnProperty(prop)) continue;
        if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
        modeObj[prop] = exts[prop];
      }
    }
    modeObj.name = spec.name;
    if (spec.helperType) modeObj.helperType = spec.helperType;
    if (spec.modeProps) for (var prop in spec.modeProps)
      modeObj[prop] = spec.modeProps[prop];

    return modeObj;
  };

  // Minimal default mode.
  CodeMirror.defineMode("null", function() {
    return {token: function(stream) {stream.skipToEnd();}};
  });
  CodeMirror.defineMIME("text/plain", "null");

  // This can be used to attach properties to mode objects from
  // outside the actual mode definition.
  var modeExtensions = CodeMirror.modeExtensions = {};
  CodeMirror.extendMode = function(mode, properties) {
    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
    copyObj(properties, exts);
  };

  // EXTENSIONS

  CodeMirror.defineExtension = function(name, func) {
    CodeMirror.prototype[name] = func;
  };
  CodeMirror.defineDocExtension = function(name, func) {
    Doc.prototype[name] = func;
  };
  CodeMirror.defineOption = option;

  var initHooks = [];
  CodeMirror.defineInitHook = function(f) {initHooks.push(f);};

  var helpers = CodeMirror.helpers = {};
  CodeMirror.registerHelper = function(type, name, value) {
    if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
    helpers[type][name] = value;
  };
  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
    CodeMirror.registerHelper(type, name, value);
    helpers[type]._global.push({pred: predicate, val: value});
  };

  // MODE STATE HANDLING

  // Utility functions for working with state. Exported because nested
  // modes need to do this for their inner modes.

  var copyState = CodeMirror.copyState = function(mode, state) {
    if (state === true) return state;
    if (mode.copyState) return mode.copyState(state);
    var nstate = {};
    for (var n in state) {
      var val = state[n];
      if (val instanceof Array) val = val.concat([]);
      nstate[n] = val;
    }
    return nstate;
  };

  var startState = CodeMirror.startState = function(mode, a1, a2) {
    return mode.startState ? mode.startState(a1, a2) : true;
  };

  // Given a mode and a state (for that mode), find the inner mode and
  // state at the position that the state refers to.
  CodeMirror.innerMode = function(mode, state) {
    while (mode.innerMode) {
      var info = mode.innerMode(state);
      if (!info || info.mode == mode) break;
      state = info.state;
      mode = info.mode;
    }
    return info || {mode: mode, state: state};
  };

  // STANDARD COMMANDS

  // Commands are parameter-less actions that can be performed on an
  // editor, mostly used for keybindings.
  var commands = CodeMirror.commands = {
    selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
    singleSelection: function(cm) {
      cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
    },
    killLine: function(cm) {
      deleteNearSelection(cm, function(range) {
        if (range.empty()) {
          var len = getLine(cm.doc, range.head.line).text.length;
          if (range.head.ch == len && range.head.line < cm.lastLine())
            return {from: range.head, to: Pos(range.head.line + 1, 0)};
          else
            return {from: range.head, to: Pos(range.head.line, len)};
        } else {
          return {from: range.from(), to: range.to()};
        }
      });
    },
    deleteLine: function(cm) {
      deleteNearSelection(cm, function(range) {
        return {from: Pos(range.from().line, 0),
                to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
      });
    },
    delLineLeft: function(cm) {
      deleteNearSelection(cm, function(range) {
        return {from: Pos(range.from().line, 0), to: range.from()};
      });
    },
    delWrappedLineLeft: function(cm) {
      deleteNearSelection(cm, function(range) {
        var top = cm.charCoords(range.head, "div").top + 5;
        var leftPos = cm.coordsChar({left: 0, top: top}, "div");
        return {from: leftPos, to: range.from()};
      });
    },
    delWrappedLineRight: function(cm) {
      deleteNearSelection(cm, function(range) {
        var top = cm.charCoords(range.head, "div").top + 5;
        var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
        return {from: range.from(), to: rightPos };
      });
    },
    undo: function(cm) {cm.undo();},
    redo: function(cm) {cm.redo();},
    undoSelection: function(cm) {cm.undoSelection();},
    redoSelection: function(cm) {cm.redoSelection();},
    goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
    goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
    goLineStart: function(cm) {
      cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
                            {origin: "+move", bias: 1});
    },
    goLineStartSmart: function(cm) {
      cm.extendSelectionsBy(function(range) {
        return lineStartSmart(cm, range.head);
      }, {origin: "+move", bias: 1});
    },
    goLineEnd: function(cm) {
      cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
                            {origin: "+move", bias: -1});
    },
    goLineRight: function(cm) {
      cm.extendSelectionsBy(function(range) {
        var top = cm.charCoords(range.head, "div").top + 5;
        return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
      }, sel_move);
    },
    goLineLeft: function(cm) {
      cm.extendSelectionsBy(function(range) {
        var top = cm.charCoords(range.head, "div").top + 5;
        return cm.coordsChar({left: 0, top: top}, "div");
      }, sel_move);
    },
    goLineLeftSmart: function(cm) {
      cm.extendSelectionsBy(function(range) {
        var top = cm.charCoords(range.head, "div").top + 5;
        var pos = cm.coordsChar({left: 0, top: top}, "div");
        if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
        return pos;
      }, sel_move);
    },
    goLineUp: function(cm) {cm.moveV(-1, "line");},
    goLineDown: function(cm) {cm.moveV(1, "line");},
    goPageUp: function(cm) {cm.moveV(-1, "page");},
    goPageDown: function(cm) {cm.moveV(1, "page");},
    goCharLeft: function(cm) {cm.moveH(-1, "char");},
    goCharRight: function(cm) {cm.moveH(1, "char");},
    goColumnLeft: function(cm) {cm.moveH(-1, "column");},
    goColumnRight: function(cm) {cm.moveH(1, "column");},
    goWordLeft: function(cm) {cm.moveH(-1, "word");},
    goGroupRight: function(cm) {cm.moveH(1, "group");},
    goGroupLeft: function(cm) {cm.moveH(-1, "group");},
    goWordRight: function(cm) {cm.moveH(1, "word");},
    delCharBefore: function(cm) {cm.deleteH(-1, "char");},
    delCharAfter: function(cm) {cm.deleteH(1, "char");},
    delWordBefore: function(cm) {cm.deleteH(-1, "word");},
    delWordAfter: function(cm) {cm.deleteH(1, "word");},
    delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
    delGroupAfter: function(cm) {cm.deleteH(1, "group");},
    indentAuto: function(cm) {cm.indentSelection("smart");},
    indentMore: function(cm) {cm.indentSelection("add");},
    indentLess: function(cm) {cm.indentSelection("subtract");},
    insertTab: function(cm) {cm.replaceSelection("\t");},
    insertSoftTab: function(cm) {
      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
      for (var i = 0; i < ranges.length; i++) {
        var pos = ranges[i].from();
        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
        spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
      }
      cm.replaceSelections(spaces);
    },
    defaultTab: function(cm) {
      if (cm.somethingSelected()) cm.indentSelection("add");
      else cm.execCommand("insertTab");
    },
    transposeChars: function(cm) {
      runInOp(cm, function() {
        var ranges = cm.listSelections(), newSel = [];
        for (var i = 0; i < ranges.length; i++) {
          var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
          if (line) {
            if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
            if (cur.ch > 0) {
              cur = new Pos(cur.line, cur.ch + 1);
              cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
                              Pos(cur.line, cur.ch - 2), cur, "+transpose");
            } else if (cur.line > cm.doc.first) {
              var prev = getLine(cm.doc, cur.line - 1).text;
              if (prev)
                cm.replaceRange(line.charAt(0) + "\n" + prev.charAt(prev.length - 1),
                                Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
            }
          }
          newSel.push(new Range(cur, cur));
        }
        cm.setSelections(newSel);
      });
    },
    newlineAndIndent: function(cm) {
      runInOp(cm, function() {
        var len = cm.listSelections().length;
        for (var i = 0; i < len; i++) {
          var range = cm.listSelections()[i];
          cm.replaceRange("\n", range.anchor, range.head, "+input");
          cm.indentLine(range.from().line + 1, null, true);
          ensureCursorVisible(cm);
        }
      });
    },
    toggleOverwrite: function(cm) {cm.toggleOverwrite();}
  };


  // STANDARD KEYMAPS

  var keyMap = CodeMirror.keyMap = {};

  keyMap.basic = {
    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
    "Esc": "singleSelection"
  };
  // Note that the save and find-related commands aren't defined by
  // default. User code or addons can define them. Unknown commands
  // are simply ignored.
  keyMap.pcDefault = {
    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
    fallthrough: "basic"
  };
  // Very basic readline/emacs-style bindings, which are standard on Mac.
  keyMap.emacsy = {
    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
  };
  keyMap.macDefault = {
    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
    fallthrough: ["basic", "emacsy"]
  };
  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

  // KEYMAP DISPATCH

  function normalizeKeyName(name) {
    var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
    var alt, ctrl, shift, cmd;
    for (var i = 0; i < parts.length - 1; i++) {
      var mod = parts[i];
      if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
      else if (/^a(lt)?$/i.test(mod)) alt = true;
      else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
      else if (/^s(hift)$/i.test(mod)) shift = true;
      else throw new Error("Unrecognized modifier name: " + mod);
    }
    if (alt) name = "Alt-" + name;
    if (ctrl) name = "Ctrl-" + name;
    if (cmd) name = "Cmd-" + name;
    if (shift) name = "Shift-" + name;
    return name;
  }

  // This is a kludge to keep keymaps mostly working as raw objects
  // (backwards compatibility) while at the same time support features
  // like normalization and multi-stroke key bindings. It compiles a
  // new normalized keymap, and then updates the old object to reflect
  // this.
  CodeMirror.normalizeKeyMap = function(keymap) {
    var copy = {};
    for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
      var value = keymap[keyname];
      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
      if (value == "...") { delete keymap[keyname]; continue; }

      var keys = map(keyname.split(" "), normalizeKeyName);
      for (var i = 0; i < keys.length; i++) {
        var val, name;
        if (i == keys.length - 1) {
          name = keys.join(" ");
          val = value;
        } else {
          name = keys.slice(0, i + 1).join(" ");
          val = "...";
        }
        var prev = copy[name];
        if (!prev) copy[name] = val;
        else if (prev != val) throw new Error("Inconsistent bindings for " + name);
      }
      delete keymap[keyname];
    }
    for (var prop in copy) keymap[prop] = copy[prop];
    return keymap;
  };

  var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
    map = getKeyMap(map);
    var found = map.call ? map.call(key, context) : map[key];
    if (found === false) return "nothing";
    if (found === "...") return "multi";
    if (found != null && handle(found)) return "handled";

    if (map.fallthrough) {
      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
        return lookupKey(key, map.fallthrough, handle, context);
      for (var i = 0; i < map.fallthrough.length; i++) {
        var result = lookupKey(key, map.fallthrough[i], handle, context);
        if (result) return result;
      }
    }
  };

  // Modifier key presses don't count as 'real' key presses for the
  // purpose of keymap fallthrough.
  var isModifierKey = CodeMirror.isModifierKey = function(value) {
    var name = typeof value == "string" ? value : keyNames[value.keyCode];
    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
  };

  // Look up the name of a key as indicated by an event object.
  var keyName = CodeMirror.keyName = function(event, noShift) {
    if (presto && event.keyCode == 34 && event["char"]) return false;
    var base = keyNames[event.keyCode], name = base;
    if (name == null || event.altGraphKey) return false;
    if (event.altKey && base != "Alt") name = "Alt-" + name;
    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
    if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
    return name;
  };

  function getKeyMap(val) {
    return typeof val == "string" ? keyMap[val] : val;
  }

  // FROMTEXTAREA

  CodeMirror.fromTextArea = function(textarea, options) {
    options = options ? copyObj(options) : {};
    options.value = textarea.value;
    if (!options.tabindex && textarea.tabIndex)
      options.tabindex = textarea.tabIndex;
    if (!options.placeholder && textarea.placeholder)
      options.placeholder = textarea.placeholder;
    // Set autofocus to true if this textarea is focused, or if it has
    // autofocus and no other element is focused.
    if (options.autofocus == null) {
      var hasFocus = activeElt();
      options.autofocus = hasFocus == textarea ||
        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
    }

    function save() {textarea.value = cm.getValue();}
    if (textarea.form) {
      on(textarea.form, "submit", save);
      // Deplorable hack to make the submit method do the right thing.
      if (!options.leaveSubmitMethodAlone) {
        var form = textarea.form, realSubmit = form.submit;
        try {
          var wrappedSubmit = form.submit = function() {
            save();
            form.submit = realSubmit;
            form.submit();
            form.submit = wrappedSubmit;
          };
        } catch(e) {}
      }
    }

    options.finishInit = function(cm) {
      cm.save = save;
      cm.getTextArea = function() { return textarea; };
      cm.toTextArea = function() {
        cm.toTextArea = isNaN; // Prevent this from being ran twice
        save();
        textarea.parentNode.removeChild(cm.getWrapperElement());
        textarea.style.display = "";
        if (textarea.form) {
          off(textarea.form, "submit", save);
          if (typeof textarea.form.submit == "function")
            textarea.form.submit = realSubmit;
        }
      };
    };

    textarea.style.display = "none";
    var cm = CodeMirror(function(node) {
      textarea.parentNode.insertBefore(node, textarea.nextSibling);
    }, options);
    return cm;
  };

  // STRING STREAM

  // Fed to the mode parsers, provides helper functions to make
  // parsers more succinct.

  var StringStream = CodeMirror.StringStream = function(string, tabSize) {
    this.pos = this.start = 0;
    this.string = string;
    this.tabSize = tabSize || 8;
    this.lastColumnPos = this.lastColumnValue = 0;
    this.lineStart = 0;
  };

  StringStream.prototype = {
    eol: function() {return this.pos >= this.string.length;},
    sol: function() {return this.pos == this.lineStart;},
    peek: function() {return this.string.charAt(this.pos) || undefined;},
    next: function() {
      if (this.pos < this.string.length)
        return this.string.charAt(this.pos++);
    },
    eat: function(match) {
      var ch = this.string.charAt(this.pos);
      if (typeof match == "string") var ok = ch == match;
      else var ok = ch && (match.test ? match.test(ch) : match(ch));
      if (ok) {++this.pos; return ch;}
    },
    eatWhile: function(match) {
      var start = this.pos;
      while (this.eat(match)){}
      return this.pos > start;
    },
    eatSpace: function() {
      var start = this.pos;
      while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
      return this.pos > start;
    },
    skipToEnd: function() {this.pos = this.string.length;},
    skipTo: function(ch) {
      var found = this.string.indexOf(ch, this.pos);
      if (found > -1) {this.pos = found; return true;}
    },
    backUp: function(n) {this.pos -= n;},
    column: function() {
      if (this.lastColumnPos < this.start) {
        this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
        this.lastColumnPos = this.start;
      }
      return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
    },
    indentation: function() {
      return countColumn(this.string, null, this.tabSize) -
        (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
    },
    match: function(pattern, consume, caseInsensitive) {
      if (typeof pattern == "string") {
        var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
        var substr = this.string.substr(this.pos, pattern.length);
        if (cased(substr) == cased(pattern)) {
          if (consume !== false) this.pos += pattern.length;
          return true;
        }
      } else {
        var match = this.string.slice(this.pos).match(pattern);
        if (match && match.index > 0) return null;
        if (match && consume !== false) this.pos += match[0].length;
        return match;
      }
    },
    current: function(){return this.string.slice(this.start, this.pos);},
    hideFirstChars: function(n, inner) {
      this.lineStart += n;
      try { return inner(); }
      finally { this.lineStart -= n; }
    }
  };

  // TEXTMARKERS

  // Created with markText and setBookmark methods. A TextMarker is a
  // handle that can be used to clear or find a marked position in the
  // document. Line objects hold arrays (markedSpans) containing
  // {from, to, marker} object pointing to such marker objects, and
  // indicating that such a marker is present on that line. Multiple
  // lines may point to the same marker when it spans across lines.
  // The spans will have null for their from/to properties when the
  // marker continues beyond the start/end of the line. Markers have
  // links back to the lines they currently touch.

  var nextMarkerId = 0;

  var TextMarker = CodeMirror.TextMarker = function(doc, type) {
    this.lines = [];
    this.type = type;
    this.doc = doc;
    this.id = ++nextMarkerId;
  };
  eventMixin(TextMarker);

  // Clear the marker.
  TextMarker.prototype.clear = function() {
    if (this.explicitlyCleared) return;
    var cm = this.doc.cm, withOp = cm && !cm.curOp;
    if (withOp) startOperation(cm);
    if (hasHandler(this, "clear")) {
      var found = this.find();
      if (found) signalLater(this, "clear", found.from, found.to);
    }
    var min = null, max = null;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
      else if (cm) {
        if (span.to != null) max = lineNo(line);
        if (span.from != null) min = lineNo(line);
      }
      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
        updateLineHeight(line, textHeight(cm.display));
    }
    if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
      var visual = visualLine(this.lines[i]), len = lineLength(visual);
      if (len > cm.display.maxLineLength) {
        cm.display.maxLine = visual;
        cm.display.maxLineLength = len;
        cm.display.maxLineChanged = true;
      }
    }

    if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
    this.lines.length = 0;
    this.explicitlyCleared = true;
    if (this.atomic && this.doc.cantEdit) {
      this.doc.cantEdit = false;
      if (cm) reCheckSelection(cm.doc);
    }
    if (cm) signalLater(cm, "markerCleared", cm, this);
    if (withOp) endOperation(cm);
    if (this.parent) this.parent.clear();
  };

  // Find the position of the marker in the document. Returns a {from,
  // to} object by default. Side can be passed to get a specific side
  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
  // Pos objects returned contain a line object, rather than a line
  // number (used to prevent looking up the same line twice).
  TextMarker.prototype.find = function(side, lineObj) {
    if (side == null && this.type == "bookmark") side = 1;
    var from, to;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (span.from != null) {
        from = Pos(lineObj ? line : lineNo(line), span.from);
        if (side == -1) return from;
      }
      if (span.to != null) {
        to = Pos(lineObj ? line : lineNo(line), span.to);
        if (side == 1) return to;
      }
    }
    return from && {from: from, to: to};
  };

  // Signals that the marker's widget changed, and surrounding layout
  // should be recomputed.
  TextMarker.prototype.changed = function() {
    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
    if (!pos || !cm) return;
    runInOp(cm, function() {
      var line = pos.line, lineN = lineNo(pos.line);
      var view = findViewForLine(cm, lineN);
      if (view) {
        clearLineMeasurementCacheFor(view);
        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
      }
      cm.curOp.updateMaxLine = true;
      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
        var oldHeight = widget.height;
        widget.height = null;
        var dHeight = widgetHeight(widget) - oldHeight;
        if (dHeight)
          updateLineHeight(line, line.height + dHeight);
      }
    });
  };

  TextMarker.prototype.attachLine = function(line) {
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp;
      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
    }
    this.lines.push(line);
  };
  TextMarker.prototype.detachLine = function(line) {
    this.lines.splice(indexOf(this.lines, line), 1);
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp;
      (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
    }
  };

  // Collapsed markers have unique ids, in order to be able to order
  // them, which is needed for uniquely determining an outer marker
  // when they overlap (they may nest, but not partially overlap).
  var nextMarkerId = 0;

  // Create a marker, wire it up to the right lines, and
  function markText(doc, from, to, options, type) {
    // Shared markers (across linked documents) are handled separately
    // (markTextShared will call out to this again, once per
    // document).
    if (options && options.shared) return markTextShared(doc, from, to, options, type);
    // Ensure we are in an operation.
    if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);

    var marker = new TextMarker(doc, type), diff = cmp(from, to);
    if (options) copyObj(options, marker, false);
    // Don't connect empty markers unless clearWhenEmpty is false
    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
      return marker;
    if (marker.replacedWith) {
      // Showing up as a widget implies collapsed (widget replaces text)
      marker.collapsed = true;
      marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
      if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
      if (options.insertLeft) marker.widgetNode.insertLeft = true;
    }
    if (marker.collapsed) {
      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
        throw new Error("Inserting collapsed marker partially overlapping an existing one");
      sawCollapsedSpans = true;
    }

    if (marker.addToHistory)
      addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);

    var curLine = from.line, cm = doc.cm, updateMaxLine;
    doc.iter(curLine, to.line + 1, function(line) {
      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
        updateMaxLine = true;
      if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
      addMarkedSpan(line, new MarkedSpan(marker,
                                         curLine == from.line ? from.ch : null,
                                         curLine == to.line ? to.ch : null));
      ++curLine;
    });
    // lineIsHidden depends on the presence of the spans, so needs a second pass
    if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
      if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
    });

    if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });

    if (marker.readOnly) {
      sawReadOnlySpans = true;
      if (doc.history.done.length || doc.history.undone.length)
        doc.clearHistory();
    }
    if (marker.collapsed) {
      marker.id = ++nextMarkerId;
      marker.atomic = true;
    }
    if (cm) {
      // Sync editor state
      if (updateMaxLine) cm.curOp.updateMaxLine = true;
      if (marker.collapsed)
        regChange(cm, from.line, to.line + 1);
      else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
        for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
      if (marker.atomic) reCheckSelection(cm.doc);
      signalLater(cm, "markerAdded", cm, marker);
    }
    return marker;
  }

  // SHARED TEXTMARKERS

  // A shared marker spans multiple linked documents. It is
  // implemented as a meta-marker-object controlling multiple normal
  // markers.
  var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
    this.markers = markers;
    this.primary = primary;
    for (var i = 0; i < markers.length; ++i)
      markers[i].parent = this;
  };
  eventMixin(SharedTextMarker);

  SharedTextMarker.prototype.clear = function() {
    if (this.explicitlyCleared) return;
    this.explicitlyCleared = true;
    for (var i = 0; i < this.markers.length; ++i)
      this.markers[i].clear();
    signalLater(this, "clear");
  };
  SharedTextMarker.prototype.find = function(side, lineObj) {
    return this.primary.find(side, lineObj);
  };

  function markTextShared(doc, from, to, options, type) {
    options = copyObj(options);
    options.shared = false;
    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
    var widget = options.widgetNode;
    linkedDocs(doc, function(doc) {
      if (widget) options.widgetNode = widget.cloneNode(true);
      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
      for (var i = 0; i < doc.linked.length; ++i)
        if (doc.linked[i].isParent) return;
      primary = lst(markers);
    });
    return new SharedTextMarker(markers, primary);
  }

  function findSharedMarkers(doc) {
    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
                         function(m) { return m.parent; });
  }

  function copySharedMarkers(doc, markers) {
    for (var i = 0; i < markers.length; i++) {
      var marker = markers[i], pos = marker.find();
      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
      if (cmp(mFrom, mTo)) {
        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
        marker.markers.push(subMark);
        subMark.parent = marker;
      }
    }
  }

  function detachSharedMarkers(markers) {
    for (var i = 0; i < markers.length; i++) {
      var marker = markers[i], linked = [marker.primary.doc];;
      linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
      for (var j = 0; j < marker.markers.length; j++) {
        var subMarker = marker.markers[j];
        if (indexOf(linked, subMarker.doc) == -1) {
          subMarker.parent = null;
          marker.markers.splice(j--, 1);
        }
      }
    }
  }

  // TEXTMARKER SPANS

  function MarkedSpan(marker, from, to) {
    this.marker = marker;
    this.from = from; this.to = to;
  }

  // Search an array of spans for a span matching the given marker.
  function getMarkedSpanFor(spans, marker) {
    if (spans) for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.marker == marker) return span;
    }
  }
  // Remove a span from an array, returning undefined if no spans are
  // left (we don't store arrays for lines without spans).
  function removeMarkedSpan(spans, span) {
    for (var r, i = 0; i < spans.length; ++i)
      if (spans[i] != span) (r || (r = [])).push(spans[i]);
    return r;
  }
  // Add a span to a line.
  function addMarkedSpan(line, span) {
    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
    span.marker.attachLine(line);
  }

  // Used for the algorithm that adjusts markers for a change in the
  // document. These functions cut an array of spans at a given
  // character position, returning an array of remaining chunks (or
  // undefined if nothing remains).
  function markedSpansBefore(old, startCh, isInsert) {
    if (old) for (var i = 0, nw; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
        (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
      }
    }
    return nw;
  }
  function markedSpansAfter(old, endCh, isInsert) {
    if (old) for (var i = 0, nw; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
        (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
                                              span.to == null ? null : span.to - endCh));
      }
    }
    return nw;
  }

  // Given a change object, compute the new set of marker spans that
  // cover the line in which the change took place. Removes spans
  // entirely within the change, reconnects spans belonging to the
  // same marker that appear on both sides of the change, and cuts off
  // spans partially within the change. Returns an array of span
  // arrays with one element for each line in (after) the change.
  function stretchSpansOverChange(doc, change) {
    if (change.full) return null;
    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
    if (!oldFirst && !oldLast) return null;

    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
    // Get the spans that 'stick out' on both sides
    var first = markedSpansBefore(oldFirst, startCh, isInsert);
    var last = markedSpansAfter(oldLast, endCh, isInsert);

    // Next, merge those two ends
    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
    if (first) {
      // Fix up .to properties of first
      for (var i = 0; i < first.length; ++i) {
        var span = first[i];
        if (span.to == null) {
          var found = getMarkedSpanFor(last, span.marker);
          if (!found) span.to = startCh;
          else if (sameLine) span.to = found.to == null ? null : found.to + offset;
        }
      }
    }
    if (last) {
      // Fix up .from in last (or move them into first in case of sameLine)
      for (var i = 0; i < last.length; ++i) {
        var span = last[i];
        if (span.to != null) span.to += offset;
        if (span.from == null) {
          var found = getMarkedSpanFor(first, span.marker);
          if (!found) {
            span.from = offset;
            if (sameLine) (first || (first = [])).push(span);
          }
        } else {
          span.from += offset;
          if (sameLine) (first || (first = [])).push(span);
        }
      }
    }
    // Make sure we didn't create any zero-length spans
    if (first) first = clearEmptySpans(first);
    if (last && last != first) last = clearEmptySpans(last);

    var newMarkers = [first];
    if (!sameLine) {
      // Fill gap with whole-line-spans
      var gap = change.text.length - 2, gapMarkers;
      if (gap > 0 && first)
        for (var i = 0; i < first.length; ++i)
          if (first[i].to == null)
            (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
      for (var i = 0; i < gap; ++i)
        newMarkers.push(gapMarkers);
      newMarkers.push(last);
    }
    return newMarkers;
  }

  // Remove spans that are empty and don't have a clearWhenEmpty
  // option of false.
  function clearEmptySpans(spans) {
    for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
        spans.splice(i--, 1);
    }
    if (!spans.length) return null;
    return spans;
  }

  // Used for un/re-doing changes from the history. Combines the
  // result of computing the existing spans with the set of spans that
  // existed in the history (so that deleting around a span and then
  // undoing brings back the span).
  function mergeOldSpans(doc, change) {
    var old = getOldSpans(doc, change);
    var stretched = stretchSpansOverChange(doc, change);
    if (!old) return stretched;
    if (!stretched) return old;

    for (var i = 0; i < old.length; ++i) {
      var oldCur = old[i], stretchCur = stretched[i];
      if (oldCur && stretchCur) {
        spans: for (var j = 0; j < stretchCur.length; ++j) {
          var span = stretchCur[j];
          for (var k = 0; k < oldCur.length; ++k)
            if (oldCur[k].marker == span.marker) continue spans;
          oldCur.push(span);
        }
      } else if (stretchCur) {
        old[i] = stretchCur;
      }
    }
    return old;
  }

  // Used to 'clip' out readOnly ranges when making a change.
  function removeReadOnlyRanges(doc, from, to) {
    var markers = null;
    doc.iter(from.line, to.line + 1, function(line) {
      if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
        var mark = line.markedSpans[i].marker;
        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
          (markers || (markers = [])).push(mark);
      }
    });
    if (!markers) return null;
    var parts = [{from: from, to: to}];
    for (var i = 0; i < markers.length; ++i) {
      var mk = markers[i], m = mk.find(0);
      for (var j = 0; j < parts.length; ++j) {
        var p = parts[j];
        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
          newParts.push({from: p.from, to: m.from});
        if (dto > 0 || !mk.inclusiveRight && !dto)
          newParts.push({from: m.to, to: p.to});
        parts.splice.apply(parts, newParts);
        j += newParts.length - 1;
      }
    }
    return parts;
  }

  // Connect or disconnect spans from a line.
  function detachMarkedSpans(line) {
    var spans = line.markedSpans;
    if (!spans) return;
    for (var i = 0; i < spans.length; ++i)
      spans[i].marker.detachLine(line);
    line.markedSpans = null;
  }
  function attachMarkedSpans(line, spans) {
    if (!spans) return;
    for (var i = 0; i < spans.length; ++i)
      spans[i].marker.attachLine(line);
    line.markedSpans = spans;
  }

  // Helpers used when computing which overlapping collapsed span
  // counts as the larger one.
  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }

  // Returns a number indicating which of two overlapping collapsed
  // spans is larger (and thus includes the other). Falls back to
  // comparing ids when the spans cover exactly the same range.
  function compareCollapsedMarkers(a, b) {
    var lenDiff = a.lines.length - b.lines.length;
    if (lenDiff != 0) return lenDiff;
    var aPos = a.find(), bPos = b.find();
    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
    if (fromCmp) return -fromCmp;
    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
    if (toCmp) return toCmp;
    return b.id - a.id;
  }

  // Find out whether a line ends or starts in a collapsed span. If
  // so, return the marker for that span.
  function collapsedSpanAtSide(line, start) {
    var sps = sawCollapsedSpans && line.markedSpans, found;
    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
        found = sp.marker;
    }
    return found;
  }
  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }

  // Test whether there exists a collapsed span that partially
  // overlaps (covers the start or end, but not both) of a new span.
  // Such overlap is not allowed.
  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
    var line = getLine(doc, lineNo);
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) for (var i = 0; i < sps.length; ++i) {
      var sp = sps[i];
      if (!sp.marker.collapsed) continue;
      var found = sp.marker.find(0);
      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
      if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
          fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
        return true;
    }
  }

  // A visual line is a line as drawn on the screen. Folding, for
  // example, can cause multiple logical lines to appear on the same
  // visual line. This finds the start of the visual line that the
  // given line is part of (usually that is the line itself).
  function visualLine(line) {
    var merged;
    while (merged = collapsedSpanAtStart(line))
      line = merged.find(-1, true).line;
    return line;
  }

  // Returns an array of logical lines that continue the visual line
  // started by the argument, or undefined if there are no such lines.
  function visualLineContinued(line) {
    var merged, lines;
    while (merged = collapsedSpanAtEnd(line)) {
      line = merged.find(1, true).line;
      (lines || (lines = [])).push(line);
    }
    return lines;
  }

  // Get the line number of the start of the visual line that the
  // given line number is part of.
  function visualLineNo(doc, lineN) {
    var line = getLine(doc, lineN), vis = visualLine(line);
    if (line == vis) return lineN;
    return lineNo(vis);
  }
  // Get the line number of the start of the next visual line after
  // the given line.
  function visualLineEndNo(doc, lineN) {
    if (lineN > doc.lastLine()) return lineN;
    var line = getLine(doc, lineN), merged;
    if (!lineIsHidden(doc, line)) return lineN;
    while (merged = collapsedSpanAtEnd(line))
      line = merged.find(1, true).line;
    return lineNo(line) + 1;
  }

  // Compute whether a line is hidden. Lines count as hidden when they
  // are part of a visual line that starts with another line, or when
  // they are entirely covered by collapsed, non-widget span.
  function lineIsHidden(doc, line) {
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (!sp.marker.collapsed) continue;
      if (sp.from == null) return true;
      if (sp.marker.widgetNode) continue;
      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
        return true;
    }
  }
  function lineIsHiddenInner(doc, line, span) {
    if (span.to == null) {
      var end = span.marker.find(1, true);
      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
    }
    if (span.marker.inclusiveRight && span.to == line.text.length)
      return true;
    for (var sp, i = 0; i < line.markedSpans.length; ++i) {
      sp = line.markedSpans[i];
      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
          (sp.to == null || sp.to != span.from) &&
          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
          lineIsHiddenInner(doc, line, sp)) return true;
    }
  }

  // LINE WIDGETS

  // Line widgets are block elements displayed above or below a line.

  var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
    if (options) for (var opt in options) if (options.hasOwnProperty(opt))
      this[opt] = options[opt];
    this.doc = doc;
    this.node = node;
  };
  eventMixin(LineWidget);

  function adjustScrollWhenAboveVisible(cm, line, diff) {
    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
      addToScrollPos(cm, null, diff);
  }

  LineWidget.prototype.clear = function() {
    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
    if (no == null || !ws) return;
    for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
    if (!ws.length) line.widgets = null;
    var height = widgetHeight(this);
    updateLineHeight(line, Math.max(0, line.height - height));
    if (cm) runInOp(cm, function() {
      adjustScrollWhenAboveVisible(cm, line, -height);
      regLineChange(cm, no, "widget");
    });
  };
  LineWidget.prototype.changed = function() {
    var oldH = this.height, cm = this.doc.cm, line = this.line;
    this.height = null;
    var diff = widgetHeight(this) - oldH;
    if (!diff) return;
    updateLineHeight(line, line.height + diff);
    if (cm) runInOp(cm, function() {
      cm.curOp.forceUpdate = true;
      adjustScrollWhenAboveVisible(cm, line, diff);
    });
  };

  function widgetHeight(widget) {
    if (widget.height != null) return widget.height;
    var cm = widget.doc.cm;
    if (!cm) return 0;
    if (!contains(document.body, widget.node)) {
      var parentStyle = "position: relative;";
      if (widget.coverGutter)
        parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
      if (widget.noHScroll)
        parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
    }
    return widget.height = widget.node.offsetHeight;
  }

  function addLineWidget(doc, handle, node, options) {
    var widget = new LineWidget(doc, node, options);
    var cm = doc.cm;
    if (cm && widget.noHScroll) cm.display.alignWidgets = true;
    changeLine(doc, handle, "widget", function(line) {
      var widgets = line.widgets || (line.widgets = []);
      if (widget.insertAt == null) widgets.push(widget);
      else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
      widget.line = line;
      if (cm && !lineIsHidden(doc, line)) {
        var aboveVisible = heightAtLine(line) < doc.scrollTop;
        updateLineHeight(line, line.height + widgetHeight(widget));
        if (aboveVisible) addToScrollPos(cm, null, widget.height);
        cm.curOp.forceUpdate = true;
      }
      return true;
    });
    return widget;
  }

  // LINE DATA STRUCTURE

  // Line objects. These hold state related to a line, including
  // highlighting info (the styles array).
  var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
    this.text = text;
    attachMarkedSpans(this, markedSpans);
    this.height = estimateHeight ? estimateHeight(this) : 1;
  };
  eventMixin(Line);
  Line.prototype.lineNo = function() { return lineNo(this); };

  // Change the content (text, markers) of a line. Automatically
  // invalidates cached information and tries to re-estimate the
  // line's height.
  function updateLine(line, text, markedSpans, estimateHeight) {
    line.text = text;
    if (line.stateAfter) line.stateAfter = null;
    if (line.styles) line.styles = null;
    if (line.order != null) line.order = null;
    detachMarkedSpans(line);
    attachMarkedSpans(line, markedSpans);
    var estHeight = estimateHeight ? estimateHeight(line) : 1;
    if (estHeight != line.height) updateLineHeight(line, estHeight);
  }

  // Detach a line from the document tree and its markers.
  function cleanUpLine(line) {
    line.parent = null;
    detachMarkedSpans(line);
  }

  function extractLineClasses(type, output) {
    if (type) for (;;) {
      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
      if (!lineClass) break;
      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
      var prop = lineClass[1] ? "bgClass" : "textClass";
      if (output[prop] == null)
        output[prop] = lineClass[2];
      else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
        output[prop] += " " + lineClass[2];
    }
    return type;
  }

  function callBlankLine(mode, state) {
    if (mode.blankLine) return mode.blankLine(state);
    if (!mode.innerMode) return;
    var inner = CodeMirror.innerMode(mode, state);
    if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
  }

  function readToken(mode, stream, state, inner) {
    for (var i = 0; i < 10; i++) {
      if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
      var style = mode.token(stream, state);
      if (stream.pos > stream.start) return style;
    }
    throw new Error("Mode " + mode.name + " failed to advance stream.");
  }

  // Utility for getTokenAt and getLineTokens
  function takeToken(cm, pos, precise, asArray) {
    function getObj(copy) {
      return {start: stream.start, end: stream.pos,
              string: stream.current(),
              type: style || null,
              state: copy ? copyState(doc.mode, state) : state};
    }

    var doc = cm.doc, mode = doc.mode, style;
    pos = clipPos(doc, pos);
    var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
    var stream = new StringStream(line.text, cm.options.tabSize), tokens;
    if (asArray) tokens = [];
    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
      stream.start = stream.pos;
      style = readToken(mode, stream, state);
      if (asArray) tokens.push(getObj(true));
    }
    return asArray ? tokens : getObj();
  }

  // Run the given mode's parser over a line, calling f for each token.
  function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
    var flattenSpans = mode.flattenSpans;
    if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
    var curStart = 0, curStyle = null;
    var stream = new StringStream(text, cm.options.tabSize), style;
    var inner = cm.options.addModeClass && [null];
    if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
    while (!stream.eol()) {
      if (stream.pos > cm.options.maxHighlightLength) {
        flattenSpans = false;
        if (forceToEnd) processLine(cm, text, state, stream.pos);
        stream.pos = text.length;
        style = null;
      } else {
        style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
      }
      if (inner) {
        var mName = inner[0].name;
        if (mName) style = "m-" + (style ? mName + " " + style : mName);
      }
      if (!flattenSpans || curStyle != style) {
        while (curStart < stream.start) {
          curStart = Math.min(stream.start, curStart + 50000);
          f(curStart, curStyle);
        }
        curStyle = style;
      }
      stream.start = stream.pos;
    }
    while (curStart < stream.pos) {
      // Webkit seems to refuse to render text nodes longer than 57444 characters
      var pos = Math.min(stream.pos, curStart + 50000);
      f(pos, curStyle);
      curStart = pos;
    }
  }

  // Compute a style array (an array starting with a mode generation
  // -- for invalidation -- followed by pairs of end positions and
  // style strings), which is used to highlight the tokens on the
  // line.
  function highlightLine(cm, line, state, forceToEnd) {
    // A styles array always starts with a number identifying the
    // mode/overlays that it is based on (for easy invalidation).
    var st = [cm.state.modeGen], lineClasses = {};
    // Compute the base array of styles
    runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
      st.push(end, style);
    }, lineClasses, forceToEnd);

    // Run overlays, adjust style array.
    for (var o = 0; o < cm.state.overlays.length; ++o) {
      var overlay = cm.state.overlays[o], i = 1, at = 0;
      runMode(cm, line.text, overlay.mode, true, function(end, style) {
        var start = i;
        // Ensure there's a token end at the current position, and that i points at it
        while (at < end) {
          var i_end = st[i];
          if (i_end > end)
            st.splice(i, 1, end, st[i+1], i_end);
          i += 2;
          at = Math.min(end, i_end);
        }
        if (!style) return;
        if (overlay.opaque) {
          st.splice(start, i - start, end, "cm-overlay " + style);
          i = start + 2;
        } else {
          for (; start < i; start += 2) {
            var cur = st[start+1];
            st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
          }
        }
      }, lineClasses);
    }

    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
  }

  function getLineStyles(cm, line, updateFrontier) {
    if (!line.styles || line.styles[0] != cm.state.modeGen) {
      var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
      line.styles = result.styles;
      if (result.classes) line.styleClasses = result.classes;
      else if (line.styleClasses) line.styleClasses = null;
      if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
    }
    return line.styles;
  }

  // Lightweight form of highlight -- proceed over this line and
  // update state, but don't save a style array. Used for lines that
  // aren't currently visible.
  function processLine(cm, text, state, startAt) {
    var mode = cm.doc.mode;
    var stream = new StringStream(text, cm.options.tabSize);
    stream.start = stream.pos = startAt || 0;
    if (text == "") callBlankLine(mode, state);
    while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) {
      readToken(mode, stream, state);
      stream.start = stream.pos;
    }
  }

  // Convert a style as returned by a mode (either null, or a string
  // containing one or more styles) to a CSS style. This is cached,
  // and also looks for line-wide styles.
  var styleToClassCache = {}, styleToClassCacheWithMode = {};
  function interpretTokenStyle(style, options) {
    if (!style || /^\s*$/.test(style)) return null;
    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
    return cache[style] ||
      (cache[style] = style.replace(/\S+/g, "cm-$&"));
  }

  // Render the DOM representation of the text of a line. Also builds
  // up a 'line map', which points at the DOM nodes that represent
  // specific stretches of text, and is used by the measuring code.
  // The returned object contains the DOM node, this map, and
  // information about line-wide styles that were set by the mode.
  function buildLineContent(cm, lineView) {
    // The padding-right forces the element to have a 'border', which
    // is needed on Webkit to be able to get line-level bounding
    // rectangles for it (in measureChar).
    var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
    var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
                   col: 0, pos: 0, cm: cm,
                   splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
    lineView.measure = {};

    // Iterate over the logical lines that make up this visual line.
    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
      var line = i ? lineView.rest[i - 1] : lineView.line, order;
      builder.pos = 0;
      builder.addToken = buildToken;
      // Optionally wire in some hacks into the token-rendering
      // algorithm, to deal with browser quirks.
      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
        builder.addToken = buildTokenBadBidi(builder.addToken, order);
      builder.map = [];
      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
      if (line.styleClasses) {
        if (line.styleClasses.bgClass)
          builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
        if (line.styleClasses.textClass)
          builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
      }

      // Ensure at least a single node is present, for measuring.
      if (builder.map.length == 0)
        builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));

      // Store the map and a cache object for the current logical line
      if (i == 0) {
        lineView.measure.map = builder.map;
        lineView.measure.cache = {};
      } else {
        (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
        (lineView.measure.caches || (lineView.measure.caches = [])).push({});
      }
    }

    // See issue #2901
    if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
      builder.content.className = "cm-tab-wrap-hack";

    signal(cm, "renderLine", cm, lineView.line, builder.pre);
    if (builder.pre.className)
      builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");

    return builder;
  }

  function defaultSpecialCharPlaceholder(ch) {
    var token = elt("span", "\u2022", "cm-invalidchar");
    token.title = "\\u" + ch.charCodeAt(0).toString(16);
    token.setAttribute("aria-label", token.title);
    return token;
  }

  // Build up the DOM representation for a single token, and add it to
  // the line map. Takes care to render special characters separately.
  function buildToken(builder, text, style, startStyle, endStyle, title, css) {
    if (!text) return;
    var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
    var special = builder.cm.state.specialChars, mustWrap = false;
    if (!special.test(text)) {
      builder.col += text.length;
      var content = document.createTextNode(displayText);
      builder.map.push(builder.pos, builder.pos + text.length, content);
      if (ie && ie_version < 9) mustWrap = true;
      builder.pos += text.length;
    } else {
      var content = document.createDocumentFragment(), pos = 0;
      while (true) {
        special.lastIndex = pos;
        var m = special.exec(text);
        var skipped = m ? m.index - pos : text.length - pos;
        if (skipped) {
          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
          else content.appendChild(txt);
          builder.map.push(builder.pos, builder.pos + skipped, txt);
          builder.col += skipped;
          builder.pos += skipped;
        }
        if (!m) break;
        pos += skipped + 1;
        if (m[0] == "\t") {
          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
          var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
          txt.setAttribute("role", "presentation");
          txt.setAttribute("cm-text", "\t");
          builder.col += tabWidth;
        } else {
          var txt = builder.cm.options.specialCharPlaceholder(m[0]);
          txt.setAttribute("cm-text", m[0]);
          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
          else content.appendChild(txt);
          builder.col += 1;
        }
        builder.map.push(builder.pos, builder.pos + 1, txt);
        builder.pos++;
      }
    }
    if (style || startStyle || endStyle || mustWrap || css) {
      var fullStyle = style || "";
      if (startStyle) fullStyle += startStyle;
      if (endStyle) fullStyle += endStyle;
      var token = elt("span", [content], fullStyle, css);
      if (title) token.title = title;
      return builder.content.appendChild(token);
    }
    builder.content.appendChild(content);
  }

  function splitSpaces(old) {
    var out = " ";
    for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
    out += " ";
    return out;
  }

  // Work around nonsense dimensions being reported for stretches of
  // right-to-left text.
  function buildTokenBadBidi(inner, order) {
    return function(builder, text, style, startStyle, endStyle, title, css) {
      style = style ? style + " cm-force-border" : "cm-force-border";
      var start = builder.pos, end = start + text.length;
      for (;;) {
        // Find the part that overlaps with the start of this text
        for (var i = 0; i < order.length; i++) {
          var part = order[i];
          if (part.to > start && part.from <= start) break;
        }
        if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
        inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
        startStyle = null;
        text = text.slice(part.to - start);
        start = part.to;
      }
    };
  }

  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
    var widget = !ignoreWidget && marker.widgetNode;
    if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
      if (!widget)
        widget = builder.content.appendChild(document.createElement("span"));
      widget.setAttribute("cm-marker", marker.id);
    }
    if (widget) {
      builder.cm.display.input.setUneditable(widget);
      builder.content.appendChild(widget);
    }
    builder.pos += size;
  }

  // Outputs a number of spans to make up a line, taking highlighting
  // and marked text into account.
  function insertLineContent(line, builder, styles) {
    var spans = line.markedSpans, allText = line.text, at = 0;
    if (!spans) {
      for (var i = 1; i < styles.length; i+=2)
        builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
      return;
    }

    var len = allText.length, pos = 0, i = 1, text = "", style, css;
    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
    for (;;) {
      if (nextChange == pos) { // Update current marker set
        spanStyle = spanEndStyle = spanStartStyle = title = css = "";
        collapsed = null; nextChange = Infinity;
        var foundBookmarks = [];
        for (var j = 0; j < spans.length; ++j) {
          var sp = spans[j], m = sp.marker;
          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
            foundBookmarks.push(m);
          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
              nextChange = sp.to;
              spanEndStyle = "";
            }
            if (m.className) spanStyle += " " + m.className;
            if (m.css) css = m.css;
            if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
            if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
            if (m.title && !title) title = m.title;
            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
              collapsed = sp;
          } else if (sp.from > pos && nextChange > sp.from) {
            nextChange = sp.from;
          }
        }
        if (collapsed && (collapsed.from || 0) == pos) {
          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
                             collapsed.marker, collapsed.from == null);
          if (collapsed.to == null) return;
          if (collapsed.to == pos) collapsed = false;
        }
        if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
          buildCollapsedSpan(builder, 0, foundBookmarks[j]);
      }
      if (pos >= len) break;

      var upto = Math.min(len, nextChange);
      while (true) {
        if (text) {
          var end = pos + text.length;
          if (!collapsed) {
            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
          }
          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
          pos = end;
          spanStartStyle = "";
        }
        text = allText.slice(at, at = styles[i++]);
        style = interpretTokenStyle(styles[i++], builder.cm.options);
      }
    }
  }

  // DOCUMENT DATA STRUCTURE

  // By default, updates that start and end at the beginning of a line
  // are treated specially, in order to make the association of line
  // widgets and marker elements with the text behave more intuitive.
  function isWholeLineUpdate(doc, change) {
    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
      (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
  }

  // Perform a change on the document data structure.
  function updateDoc(doc, change, markedSpans, estimateHeight) {
    function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
    function update(line, text, spans) {
      updateLine(line, text, spans, estimateHeight);
      signalLater(line, "change", line, change);
    }
    function linesFor(start, end) {
      for (var i = start, result = []; i < end; ++i)
        result.push(new Line(text[i], spansFor(i), estimateHeight));
      return result;
    }

    var from = change.from, to = change.to, text = change.text;
    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

    // Adjust the line structure
    if (change.full) {
      doc.insert(0, linesFor(0, text.length));
      doc.remove(text.length, doc.size - text.length);
    } else if (isWholeLineUpdate(doc, change)) {
      // This is a whole-line replace. Treated specially to make
      // sure line objects move the way they are supposed to.
      var added = linesFor(0, text.length - 1);
      update(lastLine, lastLine.text, lastSpans);
      if (nlines) doc.remove(from.line, nlines);
      if (added.length) doc.insert(from.line, added);
    } else if (firstLine == lastLine) {
      if (text.length == 1) {
        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
      } else {
        var added = linesFor(1, text.length - 1);
        added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
        doc.insert(from.line + 1, added);
      }
    } else if (text.length == 1) {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
      doc.remove(from.line + 1, nlines);
    } else {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
      var added = linesFor(1, text.length - 1);
      if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
      doc.insert(from.line + 1, added);
    }

    signalLater(doc, "change", doc, change);
  }

  // The document is represented as a BTree consisting of leaves, with
  // chunk of lines in them, and branches, with up to ten leaves or
  // other branch nodes below them. The top node is always a branch
  // node, and is the document object itself (meaning it has
  // additional methods and properties).
  //
  // All nodes have parent links. The tree is used both to go from
  // line numbers to line objects, and to go from objects to numbers.
  // It also indexes by height, and is used to convert between height
  // and line object, and to find the total height of the document.
  //
  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

  function LeafChunk(lines) {
    this.lines = lines;
    this.parent = null;
    for (var i = 0, height = 0; i < lines.length; ++i) {
      lines[i].parent = this;
      height += lines[i].height;
    }
    this.height = height;
  }

  LeafChunk.prototype = {
    chunkSize: function() { return this.lines.length; },
    // Remove the n lines at offset 'at'.
    removeInner: function(at, n) {
      for (var i = at, e = at + n; i < e; ++i) {
        var line = this.lines[i];
        this.height -= line.height;
        cleanUpLine(line);
        signalLater(line, "delete");
      }
      this.lines.splice(at, n);
    },
    // Helper used to collapse a small branch into a single leaf.
    collapse: function(lines) {
      lines.push.apply(lines, this.lines);
    },
    // Insert the given array of lines at offset 'at', count them as
    // having the given height.
    insertInner: function(at, lines, height) {
      this.height += height;
      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
      for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
    },
    // Used to iterate over a part of the tree.
    iterN: function(at, n, op) {
      for (var e = at + n; at < e; ++at)
        if (op(this.lines[at])) return true;
    }
  };

  function BranchChunk(children) {
    this.children = children;
    var size = 0, height = 0;
    for (var i = 0; i < children.length; ++i) {
      var ch = children[i];
      size += ch.chunkSize(); height += ch.height;
      ch.parent = this;
    }
    this.size = size;
    this.height = height;
    this.parent = null;
  }

  BranchChunk.prototype = {
    chunkSize: function() { return this.size; },
    removeInner: function(at, n) {
      this.size -= n;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var rm = Math.min(n, sz - at), oldHeight = child.height;
          child.removeInner(at, rm);
          this.height -= oldHeight - child.height;
          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
          if ((n -= rm) == 0) break;
          at = 0;
        } else at -= sz;
      }
      // If the result is smaller than 25 lines, ensure that it is a
      // single leaf node.
      if (this.size - n < 25 &&
          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
        var lines = [];
        this.collapse(lines);
        this.children = [new LeafChunk(lines)];
        this.children[0].parent = this;
      }
    },
    collapse: function(lines) {
      for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
    },
    insertInner: function(at, lines, height) {
      this.size += lines.length;
      this.height += height;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at <= sz) {
          child.insertInner(at, lines, height);
          if (child.lines && child.lines.length > 50) {
            while (child.lines.length > 50) {
              var spilled = child.lines.splice(child.lines.length - 25, 25);
              var newleaf = new LeafChunk(spilled);
              child.height -= newleaf.height;
              this.children.splice(i + 1, 0, newleaf);
              newleaf.parent = this;
            }
            this.maybeSpill();
          }
          break;
        }
        at -= sz;
      }
    },
    // When a node has grown, check whether it should be split.
    maybeSpill: function() {
      if (this.children.length <= 10) return;
      var me = this;
      do {
        var spilled = me.children.splice(me.children.length - 5, 5);
        var sibling = new BranchChunk(spilled);
        if (!me.parent) { // Become the parent node
          var copy = new BranchChunk(me.children);
          copy.parent = me;
          me.children = [copy, sibling];
          me = copy;
        } else {
          me.size -= sibling.size;
          me.height -= sibling.height;
          var myIndex = indexOf(me.parent.children, me);
          me.parent.children.splice(myIndex + 1, 0, sibling);
        }
        sibling.parent = me.parent;
      } while (me.children.length > 10);
      me.parent.maybeSpill();
    },
    iterN: function(at, n, op) {
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var used = Math.min(n, sz - at);
          if (child.iterN(at, used, op)) return true;
          if ((n -= used) == 0) break;
          at = 0;
        } else at -= sz;
      }
    }
  };

  var nextDocId = 0;
  var Doc = CodeMirror.Doc = function(text, mode, firstLine) {
    if (!(this instanceof Doc)) return new Doc(text, mode, firstLine);
    if (firstLine == null) firstLine = 0;

    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
    this.first = firstLine;
    this.scrollTop = this.scrollLeft = 0;
    this.cantEdit = false;
    this.cleanGeneration = 1;
    this.frontier = firstLine;
    var start = Pos(firstLine, 0);
    this.sel = simpleSelection(start);
    this.history = new History(null);
    this.id = ++nextDocId;
    this.modeOption = mode;

    if (typeof text == "string") text = splitLines(text);
    updateDoc(this, {from: start, to: start, text: text});
    setSelection(this, simpleSelection(start), sel_dontScroll);
  };

  Doc.prototype = createObj(BranchChunk.prototype, {
    constructor: Doc,
    // Iterate over the document. Supports two forms -- with only one
    // argument, it calls that for each line in the document. With
    // three, it iterates over the range given by the first two (with
    // the second being non-inclusive).
    iter: function(from, to, op) {
      if (op) this.iterN(from - this.first, to - from, op);
      else this.iterN(this.first, this.first + this.size, from);
    },

    // Non-public interface for adding and removing lines.
    insert: function(at, lines) {
      var height = 0;
      for (var i = 0; i < lines.length; ++i) height += lines[i].height;
      this.insertInner(at - this.first, lines, height);
    },
    remove: function(at, n) { this.removeInner(at - this.first, n); },

    // From here, the methods are part of the public interface. Most
    // are also available from CodeMirror (editor) instances.

    getValue: function(lineSep, lineFilter) {
      var lines = getLines(this, this.first, this.first + this.size, lineFilter);
      if (lineSep === false) return lines;
      return lines.join(lineSep || "\n");
    },
    setValue: docMethodOp(function(code) {
      var top = Pos(this.first, 0), last = this.first + this.size - 1;
      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
                        text: splitLines(code), origin: "setValue", full: true}, true);
      setSelection(this, simpleSelection(top));
    }),
    replaceRange: function(code, from, to, origin) {
      from = clipPos(this, from);
      to = to ? clipPos(this, to) : from;
      replaceRange(this, code, from, to, origin);
    },
    getRange: function(from, to, lineSep) {
      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
      if (lineSep === false) return lines;
      return lines.join(lineSep || "\n");
    },

    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},

    getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
    getLineNumber: function(line) {return lineNo(line);},

    getLineHandleVisualStart: function(line) {
      if (typeof line == "number") line = getLine(this, line);
      return visualLine(line);
    },

    lineCount: function() {return this.size;},
    firstLine: function() {return this.first;},
    lastLine: function() {return this.first + this.size - 1;},

    clipPos: function(pos) {return clipPos(this, pos);},

    getCursor: function(start) {
      var range = this.sel.primary(), pos;
      if (start == null || start == "head") pos = range.head;
      else if (start == "anchor") pos = range.anchor;
      else if (start == "end" || start == "to" || start === false) pos = range.to();
      else pos = range.from();
      return pos;
    },
    listSelections: function() { return this.sel.ranges; },
    somethingSelected: function() {return this.sel.somethingSelected();},

    setCursor: docMethodOp(function(line, ch, options) {
      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
    }),
    setSelection: docMethodOp(function(anchor, head, options) {
      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
    }),
    extendSelection: docMethodOp(function(head, other, options) {
      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
    }),
    extendSelections: docMethodOp(function(heads, options) {
      extendSelections(this, clipPosArray(this, heads, options));
    }),
    extendSelectionsBy: docMethodOp(function(f, options) {
      extendSelections(this, map(this.sel.ranges, f), options);
    }),
    setSelections: docMethodOp(function(ranges, primary, options) {
      if (!ranges.length) return;
      for (var i = 0, out = []; i < ranges.length; i++)
        out[i] = new Range(clipPos(this, ranges[i].anchor),
                           clipPos(this, ranges[i].head));
      if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
      setSelection(this, normalizeSelection(out, primary), options);
    }),
    addSelection: docMethodOp(function(anchor, head, options) {
      var ranges = this.sel.ranges.slice(0);
      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
      setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
    }),

    getSelection: function(lineSep) {
      var ranges = this.sel.ranges, lines;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        lines = lines ? lines.concat(sel) : sel;
      }
      if (lineSep === false) return lines;
      else return lines.join(lineSep || "\n");
    },
    getSelections: function(lineSep) {
      var parts = [], ranges = this.sel.ranges;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        if (lineSep !== false) sel = sel.join(lineSep || "\n");
        parts[i] = sel;
      }
      return parts;
    },
    replaceSelection: function(code, collapse, origin) {
      var dup = [];
      for (var i = 0; i < this.sel.ranges.length; i++)
        dup[i] = code;
      this.replaceSelections(dup, collapse, origin || "+input");
    },
    replaceSelections: docMethodOp(function(code, collapse, origin) {
      var changes = [], sel = this.sel;
      for (var i = 0; i < sel.ranges.length; i++) {
        var range = sel.ranges[i];
        changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin};
      }
      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
      for (var i = changes.length - 1; i >= 0; i--)
        makeChange(this, changes[i]);
      if (newSel) setSelectionReplaceHistory(this, newSel);
      else if (this.cm) ensureCursorVisible(this.cm);
    }),
    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

    setExtending: function(val) {this.extend = val;},
    getExtending: function() {return this.extend;},

    historySize: function() {
      var hist = this.history, done = 0, undone = 0;
      for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
      for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
      return {undo: done, redo: undone};
    },
    clearHistory: function() {this.history = new History(this.history.maxGeneration);},

    markClean: function() {
      this.cleanGeneration = this.changeGeneration(true);
    },
    changeGeneration: function(forceSplit) {
      if (forceSplit)
        this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
      return this.history.generation;
    },
    isClean: function (gen) {
      return this.history.generation == (gen || this.cleanGeneration);
    },

    getHistory: function() {
      return {done: copyHistoryArray(this.history.done),
              undone: copyHistoryArray(this.history.undone)};
    },
    setHistory: function(histData) {
      var hist = this.history = new History(this.history.maxGeneration);
      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
    },

    addLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        if (!line[prop]) line[prop] = cls;
        else if (classTest(cls).test(line[prop])) return false;
        else line[prop] += " " + cls;
        return true;
      });
    }),
    removeLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        var cur = line[prop];
        if (!cur) return false;
        else if (cls == null) line[prop] = null;
        else {
          var found = cur.match(classTest(cls));
          if (!found) return false;
          var end = found.index + found[0].length;
          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
        }
        return true;
      });
    }),

    addLineWidget: docMethodOp(function(handle, node, options) {
      return addLineWidget(this, handle, node, options);
    }),
    removeLineWidget: function(widget) { widget.clear(); },

    markText: function(from, to, options) {
      return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
    },
    setBookmark: function(pos, options) {
      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
                      insertLeft: options && options.insertLeft,
                      clearWhenEmpty: false, shared: options && options.shared,
                      handleMouseEvents: options && options.handleMouseEvents};
      pos = clipPos(this, pos);
      return markText(this, pos, pos, realOpts, "bookmark");
    },
    findMarksAt: function(pos) {
      pos = clipPos(this, pos);
      var markers = [], spans = getLine(this, pos.line).markedSpans;
      if (spans) for (var i = 0; i < spans.length; ++i) {
        var span = spans[i];
        if ((span.from == null || span.from <= pos.ch) &&
            (span.to == null || span.to >= pos.ch))
          markers.push(span.marker.parent || span.marker);
      }
      return markers;
    },
    findMarks: function(from, to, filter) {
      from = clipPos(this, from); to = clipPos(this, to);
      var found = [], lineNo = from.line;
      this.iter(from.line, to.line + 1, function(line) {
        var spans = line.markedSpans;
        if (spans) for (var i = 0; i < spans.length; i++) {
          var span = spans[i];
          if (!(lineNo == from.line && from.ch > span.to ||
                span.from == null && lineNo != from.line||
                lineNo == to.line && span.from > to.ch) &&
              (!filter || filter(span.marker)))
            found.push(span.marker.parent || span.marker);
        }
        ++lineNo;
      });
      return found;
    },
    getAllMarks: function() {
      var markers = [];
      this.iter(function(line) {
        var sps = line.markedSpans;
        if (sps) for (var i = 0; i < sps.length; ++i)
          if (sps[i].from != null) markers.push(sps[i].marker);
      });
      return markers;
    },

    posFromIndex: function(off) {
      var ch, lineNo = this.first;
      this.iter(function(line) {
        var sz = line.text.length + 1;
        if (sz > off) { ch = off; return true; }
        off -= sz;
        ++lineNo;
      });
      return clipPos(this, Pos(lineNo, ch));
    },
    indexFromPos: function (coords) {
      coords = clipPos(this, coords);
      var index = coords.ch;
      if (coords.line < this.first || coords.ch < 0) return 0;
      this.iter(this.first, coords.line, function (line) {
        index += line.text.length + 1;
      });
      return index;
    },

    copy: function(copyHistory) {
      var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first);
      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
      doc.sel = this.sel;
      doc.extend = false;
      if (copyHistory) {
        doc.history.undoDepth = this.history.undoDepth;
        doc.setHistory(this.getHistory());
      }
      return doc;
    },

    linkedDoc: function(options) {
      if (!options) options = {};
      var from = this.first, to = this.first + this.size;
      if (options.from != null && options.from > from) from = options.from;
      if (options.to != null && options.to < to) to = options.to;
      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from);
      if (options.sharedHist) copy.history = this.history;
      (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
      copySharedMarkers(copy, findSharedMarkers(this));
      return copy;
    },
    unlinkDoc: function(other) {
      if (other instanceof CodeMirror) other = other.doc;
      if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
        var link = this.linked[i];
        if (link.doc != other) continue;
        this.linked.splice(i, 1);
        other.unlinkDoc(this);
        detachSharedMarkers(findSharedMarkers(this));
        break;
      }
      // If the histories were shared, split them again
      if (other.history == this.history) {
        var splitIds = [other.id];
        linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
        other.history = new History(null);
        other.history.done = copyHistoryArray(this.history.done, splitIds);
        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
      }
    },
    iterLinkedDocs: function(f) {linkedDocs(this, f);},

    getMode: function() {return this.mode;},
    getEditor: function() {return this.cm;}
  });

  // Public alias.
  Doc.prototype.eachLine = Doc.prototype.iter;

  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
  for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
    CodeMirror.prototype[prop] = (function(method) {
      return function() {return method.apply(this.doc, arguments);};
    })(Doc.prototype[prop]);

  eventMixin(Doc);

  // Call f for all linked documents.
  function linkedDocs(doc, f, sharedHistOnly) {
    function propagate(doc, skip, sharedHist) {
      if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
        var rel = doc.linked[i];
        if (rel.doc == skip) continue;
        var shared = sharedHist && rel.sharedHist;
        if (sharedHistOnly && !shared) continue;
        f(rel.doc, shared);
        propagate(rel.doc, doc, shared);
      }
    }
    propagate(doc, null, true);
  }

  // Attach a document to an editor.
  function attachDoc(cm, doc) {
    if (doc.cm) throw new Error("This document is already in use.");
    cm.doc = doc;
    doc.cm = cm;
    estimateLineHeights(cm);
    loadMode(cm);
    if (!cm.options.lineWrapping) findMaxLine(cm);
    cm.options.mode = doc.modeOption;
    regChange(cm);
  }

  // LINE UTILITIES

  // Find the line object corresponding to the given line number.
  function getLine(doc, n) {
    n -= doc.first;
    if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
    for (var chunk = doc; !chunk.lines;) {
      for (var i = 0;; ++i) {
        var child = chunk.children[i], sz = child.chunkSize();
        if (n < sz) { chunk = child; break; }
        n -= sz;
      }
    }
    return chunk.lines[n];
  }

  // Get the part of a document between two positions, as an array of
  // strings.
  function getBetween(doc, start, end) {
    var out = [], n = start.line;
    doc.iter(start.line, end.line + 1, function(line) {
      var text = line.text;
      if (n == end.line) text = text.slice(0, end.ch);
      if (n == start.line) text = text.slice(start.ch);
      out.push(text);
      ++n;
    });
    return out;
  }
  // Get the lines between from and to, as array of strings.
  function getLines(doc, from, to, lineFilter) {
    var out = [];
    doc.iter(from, to, function(line) {
      var text = line.text;
      if(lineFilter){
        text = lineFilter(line);
      }
      out.push(text);
    });
    return out;
  }

  // Update the height of a line, propagating the height change
  // upwards to parent nodes.
  function updateLineHeight(line, height) {
    var diff = height - line.height;
    if (diff) for (var n = line; n; n = n.parent) n.height += diff;
  }

  // Given a line object, find its line number by walking up through
  // its parent links.
  function lineNo(line) {
    if (line.parent == null) return null;
    var cur = line.parent, no = indexOf(cur.lines, line);
    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
      for (var i = 0;; ++i) {
        if (chunk.children[i] == cur) break;
        no += chunk.children[i].chunkSize();
      }
    }
    return no + cur.first;
  }

  // Find the line at the given vertical position, using the height
  // information in the document tree.
  function lineAtHeight(chunk, h) {
    var n = chunk.first;
    outer: do {
      for (var i = 0; i < chunk.children.length; ++i) {
        var child = chunk.children[i], ch = child.height;
        if (h < ch) { chunk = child; continue outer; }
        h -= ch;
        n += child.chunkSize();
      }
      return n;
    } while (!chunk.lines);
    for (var i = 0; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i], lh = line.height;
      if (h < lh) break;
      h -= lh;
    }
    return n + i;
  }


  // Find the height above the given line.
  function heightAtLine(lineObj) {
    lineObj = visualLine(lineObj);

    var h = 0, chunk = lineObj.parent;
    for (var i = 0; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i];
      if (line == lineObj) break;
      else h += line.height;
    }
    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
      for (var i = 0; i < p.children.length; ++i) {
        var cur = p.children[i];
        if (cur == chunk) break;
        else h += cur.height;
      }
    }
    return h;
  }

  // Get the bidi ordering for the given line (and cache it). Returns
  // false for lines that are fully left-to-right, and an array of
  // BidiSpan objects otherwise.
  function getOrder(line) {
    var order = line.order;
    if (order == null) order = line.order = bidiOrdering(line.text);
    return order;
  }

  // HISTORY

  function History(startGen) {
    // Arrays of change events and selections. Doing something adds an
    // event to done and clears undo. Undoing moves events from done
    // to undone, redoing moves them in the other direction.
    this.done = []; this.undone = [];
    this.undoDepth = Infinity;
    // Used to track when changes can be merged into a single undo
    // event
    this.lastModTime = this.lastSelTime = 0;
    this.lastOp = this.lastSelOp = null;
    this.lastOrigin = this.lastSelOrigin = null;
    // Used by the isClean() method
    this.generation = this.maxGeneration = startGen || 1;
  }

  // Create a history change event from an updateDoc-style change
  // object.
  function historyChangeFromChange(doc, change) {
    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
    linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
    return histChange;
  }

  // Pop all selection events off the end of a history array. Stop at
  // a change event.
  function clearSelectionEvents(array) {
    while (array.length) {
      var last = lst(array);
      if (last.ranges) array.pop();
      else break;
    }
  }

  // Find the top change event in the history. Pop off selection
  // events that are in the way.
  function lastChangeEvent(hist, force) {
    if (force) {
      clearSelectionEvents(hist.done);
      return lst(hist.done);
    } else if (hist.done.length && !lst(hist.done).ranges) {
      return lst(hist.done);
    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
      hist.done.pop();
      return lst(hist.done);
    }
  }

  // Register a change in the history. Merges changes that are within
  // a single operation, ore are close together with an origin that
  // allows merging (starting with "+") into a single event.
  function addChangeToHistory(doc, change, selAfter, opId) {
    var hist = doc.history;
    hist.undone.length = 0;
    var time = +new Date, cur;

    if ((hist.lastOp == opId ||
         hist.lastOrigin == change.origin && change.origin &&
         ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
          change.origin.charAt(0) == "*")) &&
        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
      // Merge this change into the last event
      var last = lst(cur.changes);
      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
        // Optimized case for simple insertion -- don't want to add
        // new changesets for every character typed
        last.to = changeEnd(change);
      } else {
        // Add new sub-event
        cur.changes.push(historyChangeFromChange(doc, change));
      }
    } else {
      // Can not be merged, start a new event.
      var before = lst(hist.done);
      if (!before || !before.ranges)
        pushSelectionToHistory(doc.sel, hist.done);
      cur = {changes: [historyChangeFromChange(doc, change)],
             generation: hist.generation};
      hist.done.push(cur);
      while (hist.done.length > hist.undoDepth) {
        hist.done.shift();
        if (!hist.done[0].ranges) hist.done.shift();
      }
    }
    hist.done.push(selAfter);
    hist.generation = ++hist.maxGeneration;
    hist.lastModTime = hist.lastSelTime = time;
    hist.lastOp = hist.lastSelOp = opId;
    hist.lastOrigin = hist.lastSelOrigin = change.origin;

    if (!last) signal(doc, "historyAdded");
  }

  function selectionEventCanBeMerged(doc, origin, prev, sel) {
    var ch = origin.charAt(0);
    return ch == "*" ||
      ch == "+" &&
      prev.ranges.length == sel.ranges.length &&
      prev.somethingSelected() == sel.somethingSelected() &&
      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
  }

  // Called whenever the selection changes, sets the new selection as
  // the pending selection in the history, and pushes the old pending
  // selection into the 'done' array when it was significantly
  // different (in number of selected ranges, emptiness, or time).
  function addSelectionToHistory(doc, sel, opId, options) {
    var hist = doc.history, origin = options && options.origin;

    // A new event is started when the previous origin does not match
    // the current, or the origins don't allow matching. Origins
    // starting with * are always merged, those starting with + are
    // merged when similar and close together in time.
    if (opId == hist.lastSelOp ||
        (origin && hist.lastSelOrigin == origin &&
         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
      hist.done[hist.done.length - 1] = sel;
    else
      pushSelectionToHistory(sel, hist.done);

    hist.lastSelTime = +new Date;
    hist.lastSelOrigin = origin;
    hist.lastSelOp = opId;
    if (options && options.clearRedo !== false)
      clearSelectionEvents(hist.undone);
  }

  function pushSelectionToHistory(sel, dest) {
    var top = lst(dest);
    if (!(top && top.ranges && top.equals(sel)))
      dest.push(sel);
  }

  // Used to store marked span information in the history.
  function attachLocalSpans(doc, change, from, to) {
    var existing = change["spans_" + doc.id], n = 0;
    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
      if (line.markedSpans)
        (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
      ++n;
    });
  }

  // When un/re-doing restores text containing marked spans, those
  // that have been explicitly cleared should not be restored.
  function removeClearedSpans(spans) {
    if (!spans) return null;
    for (var i = 0, out; i < spans.length; ++i) {
      if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
      else if (out) out.push(spans[i]);
    }
    return !out ? spans : out.length ? out : null;
  }

  // Retrieve and filter the old marked spans stored in a change event.
  function getOldSpans(doc, change) {
    var found = change["spans_" + doc.id];
    if (!found) return null;
    for (var i = 0, nw = []; i < change.text.length; ++i)
      nw.push(removeClearedSpans(found[i]));
    return nw;
  }

  // Used both to provide a JSON-safe object in .getHistory, and, when
  // detaching a document, to split the history in two
  function copyHistoryArray(events, newGroup, instantiateSel) {
    for (var i = 0, copy = []; i < events.length; ++i) {
      var event = events[i];
      if (event.ranges) {
        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
        continue;
      }
      var changes = event.changes, newChanges = [];
      copy.push({changes: newChanges});
      for (var j = 0; j < changes.length; ++j) {
        var change = changes[j], m;
        newChanges.push({from: change.from, to: change.to, text: change.text});
        if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
          if (indexOf(newGroup, Number(m[1])) > -1) {
            lst(newChanges)[prop] = change[prop];
            delete change[prop];
          }
        }
      }
    }
    return copy;
  }

  // Rebasing/resetting history to deal with externally-sourced changes

  function rebaseHistSelSingle(pos, from, to, diff) {
    if (to < pos.line) {
      pos.line += diff;
    } else if (from < pos.line) {
      pos.line = from;
      pos.ch = 0;
    }
  }

  // Tries to rebase an array of history events given a change in the
  // document. If the change touches the same lines as the event, the
  // event, and everything 'behind' it, is discarded. If the change is
  // before the event, the event's positions are updated. Uses a
  // copy-on-write scheme for the positions, to avoid having to
  // reallocate them all on every rebase, but also avoid problems with
  // shared position objects being unsafely updated.
  function rebaseHistArray(array, from, to, diff) {
    for (var i = 0; i < array.length; ++i) {
      var sub = array[i], ok = true;
      if (sub.ranges) {
        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
        for (var j = 0; j < sub.ranges.length; j++) {
          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
        }
        continue;
      }
      for (var j = 0; j < sub.changes.length; ++j) {
        var cur = sub.changes[j];
        if (to < cur.from.line) {
          cur.from = Pos(cur.from.line + diff, cur.from.ch);
          cur.to = Pos(cur.to.line + diff, cur.to.ch);
        } else if (from <= cur.to.line) {
          ok = false;
          break;
        }
      }
      if (!ok) {
        array.splice(0, i + 1);
        i = 0;
      }
    }
  }

  function rebaseHist(hist, change) {
    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
    rebaseHistArray(hist.done, from, to, diff);
    rebaseHistArray(hist.undone, from, to, diff);
  }

  // EVENT UTILITIES

  // Due to the fact that we still support jurassic IE versions, some
  // compatibility wrappers are needed.

  var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
    if (e.preventDefault) e.preventDefault();
    else e.returnValue = false;
  };
  var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
    if (e.stopPropagation) e.stopPropagation();
    else e.cancelBubble = true;
  };
  function e_defaultPrevented(e) {
    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
  }
  var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};

  function e_target(e) {return e.target || e.srcElement;}
  function e_button(e) {
    var b = e.which;
    if (b == null) {
      if (e.button & 1) b = 1;
      else if (e.button & 2) b = 3;
      else if (e.button & 4) b = 2;
    }
    if (mac && e.ctrlKey && b == 1) b = 3;
    return b;
  }

  // EVENT HANDLING

  // Lightweight event framework. on/off also work on DOM nodes,
  // registering native DOM handlers.

  var on = CodeMirror.on = function(emitter, type, f) {
    if (emitter.addEventListener)
      emitter.addEventListener(type, f, false);
    else if (emitter.attachEvent)
      emitter.attachEvent("on" + type, f);
    else {
      var map = emitter._handlers || (emitter._handlers = {});
      var arr = map[type] || (map[type] = []);
      arr.push(f);
    }
  };

  var off = CodeMirror.off = function(emitter, type, f) {
    if (emitter.removeEventListener)
      emitter.removeEventListener(type, f, false);
    else if (emitter.detachEvent)
      emitter.detachEvent("on" + type, f);
    else {
      var arr = emitter._handlers && emitter._handlers[type];
      if (!arr) return;
      for (var i = 0; i < arr.length; ++i)
        if (arr[i] == f) { arr.splice(i, 1); break; }
    }
  };

  var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
    var arr = emitter._handlers && emitter._handlers[type];
    if (!arr) return;
    var args = Array.prototype.slice.call(arguments, 2);
    for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
  };

  var orphanDelayedCallbacks = null;

  // Often, we want to signal events at a point where we are in the
  // middle of some work, but don't want the handler to start calling
  // other methods on the editor, which might be in an inconsistent
  // state or simply not expect any other events to happen.
  // signalLater looks whether there are any handlers, and schedules
  // them to be executed when the last operation ends, or, if no
  // operation is active, when a timeout fires.
  function signalLater(emitter, type /*, values...*/) {
    var arr = emitter._handlers && emitter._handlers[type];
    if (!arr) return;
    var args = Array.prototype.slice.call(arguments, 2), list;
    if (operationGroup) {
      list = operationGroup.delayedCallbacks;
    } else if (orphanDelayedCallbacks) {
      list = orphanDelayedCallbacks;
    } else {
      list = orphanDelayedCallbacks = [];
      setTimeout(fireOrphanDelayed, 0);
    }
    function bnd(f) {return function(){f.apply(null, args);};};
    for (var i = 0; i < arr.length; ++i)
      list.push(bnd(arr[i]));
  }

  function fireOrphanDelayed() {
    var delayed = orphanDelayedCallbacks;
    orphanDelayedCallbacks = null;
    for (var i = 0; i < delayed.length; ++i) delayed[i]();
  }

  // The DOM events that CodeMirror handles can be overridden by
  // registering a (non-DOM) handler on the editor for the event name,
  // and preventDefault-ing the event in that handler.
  function signalDOMEvent(cm, e, override) {
    if (typeof e == "string")
      e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
    signal(cm, override || e.type, cm, e);
    return e_defaultPrevented(e) || e.codemirrorIgnore;
  }

  function signalCursorActivity(cm) {
    var arr = cm._handlers && cm._handlers.cursorActivity;
    if (!arr) return;
    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
    for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
      set.push(arr[i]);
  }

  function hasHandler(emitter, type) {
    var arr = emitter._handlers && emitter._handlers[type];
    return arr && arr.length > 0;
  }

  // Add on and off methods to a constructor's prototype, to make
  // registering events on such objects more convenient.
  function eventMixin(ctor) {
    ctor.prototype.on = function(type, f) {on(this, type, f);};
    ctor.prototype.off = function(type, f) {off(this, type, f);};
  }

  // MISC UTILITIES

  // Number of pixels added to scroller and sizer to hide scrollbar
  var scrollerGap = 30;

  // Returned or thrown by various protocols to signal 'I'm not
  // handling this'.
  var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};

  // Reused option objects for setSelection & friends
  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};

  function Delayed() {this.id = null;}
  Delayed.prototype.set = function(ms, f) {
    clearTimeout(this.id);
    this.id = setTimeout(f, ms);
  };

  // Counts the column offset in a string, taking tabs into account.
  // Used mostly to find indentation.
  var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
    if (end == null) {
      end = string.search(/[^\s\u00a0]/);
      if (end == -1) end = string.length;
    }
    for (var i = startIndex || 0, n = startValue || 0;;) {
      var nextTab = string.indexOf("\t", i);
      if (nextTab < 0 || nextTab >= end)
        return n + (end - i);
      n += nextTab - i;
      n += tabSize - (n % tabSize);
      i = nextTab + 1;
    }
  };

  // The inverse of countColumn -- find the offset that corresponds to
  // a particular column.
  function findColumn(string, goal, tabSize) {
    for (var pos = 0, col = 0;;) {
      var nextTab = string.indexOf("\t", pos);
      if (nextTab == -1) nextTab = string.length;
      var skipped = nextTab - pos;
      if (nextTab == string.length || col + skipped >= goal)
        return pos + Math.min(skipped, goal - col);
      col += nextTab - pos;
      col += tabSize - (col % tabSize);
      pos = nextTab + 1;
      if (col >= goal) return pos;
    }
  }

  var spaceStrs = [""];
  function spaceStr(n) {
    while (spaceStrs.length <= n)
      spaceStrs.push(lst(spaceStrs) + " ");
    return spaceStrs[n];
  }

  function lst(arr) { return arr[arr.length-1]; }

  var selectInput = function(node) { node.select(); };
  if (ios) // Mobile Safari apparently has a bug where select() is broken.
    selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
  else if (ie) // Suppress mysterious IE10 errors
    selectInput = function(node) { try { node.select(); } catch(_e) {} };

  function indexOf(array, elt) {
    for (var i = 0; i < array.length; ++i)
      if (array[i] == elt) return i;
    return -1;
  }
  function map(array, f) {
    var out = [];
    for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
    return out;
  }

  function nothing() {}

  function createObj(base, props) {
    var inst;
    if (Object.create) {
      inst = Object.create(base);
    } else {
      nothing.prototype = base;
      inst = new nothing();
    }
    if (props) copyObj(props, inst);
    return inst;
  };

  function copyObj(obj, target, overwrite) {
    if (!target) target = {};
    for (var prop in obj)
      if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
        target[prop] = obj[prop];
    return target;
  }

  function bind(f) {
    var args = Array.prototype.slice.call(arguments, 1);
    return function(){return f.apply(null, args);};
  }

  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
  var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
    return /\w/.test(ch) || ch > "\x80" &&
      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
  };
  function isWordChar(ch, helper) {
    if (!helper) return isWordCharBasic(ch);
    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
    return helper.test(ch);
  }

  function isEmpty(obj) {
    for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
    return true;
  }

  // Extending unicode characters. A series of a non-extending char +
  // any number of extending chars is treated as a single unit as far
  // as editing and measuring is concerned. This is not fully correct,
  // since some scripts/font/browsers also treat other configurations
  // of code points as a group.
  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }

  // DOM UTILITIES

  function elt(tag, content, className, style) {
    var e = document.createElement(tag);
    if (className) e.className = className;
    if (style) e.style.cssText = style;
    if (typeof content == "string") e.appendChild(document.createTextNode(content));
    else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
    return e;
  }

  var range;
  if (document.createRange) range = function(node, start, end, endNode) {
    var r = document.createRange();
    r.setEnd(endNode || node, end);
    r.setStart(node, start);
    return r;
  };
  else range = function(node, start, end) {
    var r = document.body.createTextRange();
    try { r.moveToElementText(node.parentNode); }
    catch(e) { return r; }
    r.collapse(true);
    r.moveEnd("character", end);
    r.moveStart("character", start);
    return r;
  };

  function removeChildren(e) {
    for (var count = e.childNodes.length; count > 0; --count)
      e.removeChild(e.firstChild);
    return e;
  }

  function removeChildrenAndAdd(parent, e) {
    return removeChildren(parent).appendChild(e);
  }

  var contains = CodeMirror.contains = function(parent, child) {
    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
      child = child.parentNode;
    if (parent.contains)
      return parent.contains(child);
    do {
      if (child.nodeType == 11) child = child.host;
      if (child == parent) return true;
    } while (child = child.parentNode);
  };

  function activeElt() { return document.activeElement; }
  // Older versions of IE throws unspecified error when touching
  // document.activeElement in some cases (during loading, in iframe)
  if (ie && ie_version < 11) activeElt = function() {
    try { return document.activeElement; }
    catch(e) { return document.body; }
  };

  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
  var rmClass = CodeMirror.rmClass = function(node, cls) {
    var current = node.className;
    var match = classTest(cls).exec(current);
    if (match) {
      var after = current.slice(match.index + match[0].length);
      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
    }
  };
  var addClass = CodeMirror.addClass = function(node, cls) {
    var current = node.className;
    if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
  };
  function joinClasses(a, b) {
    var as = a.split(" ");
    for (var i = 0; i < as.length; i++)
      if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
    return b;
  }

  // WINDOW-WIDE EVENTS

  // These must be handled carefully, because naively registering a
  // handler for each editor will cause the editors to never be
  // garbage collected.

  function forEachCodeMirror(f) {
    if (!document.body.getElementsByClassName) return;
    var byClass = document.body.getElementsByClassName("CodeMirror");
    for (var i = 0; i < byClass.length; i++) {
      var cm = byClass[i].CodeMirror;
      if (cm) f(cm);
    }
  }

  var globalsRegistered = false;
  function ensureGlobalHandlers() {
    if (globalsRegistered) return;
    registerGlobalHandlers();
    globalsRegistered = true;
  }
  function registerGlobalHandlers() {
    // When the window resizes, we need to refresh active editors.
    var resizeTimer;
    on(window, "resize", function() {
      if (resizeTimer == null) resizeTimer = setTimeout(function() {
        resizeTimer = null;
        forEachCodeMirror(onResize);
      }, 100);
    });
    // When the window loses focus, we want to show the editor as blurred
    on(window, "blur", function() {
      forEachCodeMirror(onBlur);
    });
  }

  // FEATURE DETECTION

  // Detect drag-and-drop
  var dragAndDrop = function() {
    // There is *some* kind of drag-and-drop support in IE6-8, but I
    // couldn't get it to work yet.
    if (ie && ie_version < 9) return false;
    var div = elt('div');
    return "draggable" in div || "dragDrop" in div;
  }();

  var zwspSupported;
  function zeroWidthElement(measure) {
    if (zwspSupported == null) {
      var test = elt("span", "\u200b");
      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
      if (measure.firstChild.offsetHeight != 0)
        zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
    }
    var node = zwspSupported ? elt("span", "\u200b") :
      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
    node.setAttribute("cm-text", "");
    return node;
  }

  // Feature-detect IE's crummy client rect reporting for bidi text
  var badBidiRects;
  function hasBadBidiRects(measure) {
    if (badBidiRects != null) return badBidiRects;
    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
    var r0 = range(txt, 0, 1).getBoundingClientRect();
    if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
    var r1 = range(txt, 1, 2).getBoundingClientRect();
    return badBidiRects = (r1.right - r0.right < 3);
  }

  // See if "".split is the broken IE version, if so, provide an
  // alternative way to split lines.
  var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
    var pos = 0, result = [], l = string.length;
    while (pos <= l) {
      var nl = string.indexOf("\n", pos);
      if (nl == -1) nl = string.length;
      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
      var rt = line.indexOf("\r");
      if (rt != -1) {
        result.push(line.slice(0, rt));
        pos += rt + 1;
      } else {
        result.push(line);
        pos = nl + 1;
      }
    }
    return result;
  } : function(string){return string.split(/\r\n?|\n/);};

  var hasSelection = window.getSelection ? function(te) {
    try { return te.selectionStart != te.selectionEnd; }
    catch(e) { return false; }
  } : function(te) {
    try {var range = te.ownerDocument.selection.createRange();}
    catch(e) {}
    if (!range || range.parentElement() != te) return false;
    return range.compareEndPoints("StartToEnd", range) != 0;
  };

  var hasCopyEvent = (function() {
    var e = elt("div");
    if ("oncopy" in e) return true;
    e.setAttribute("oncopy", "return;");
    return typeof e.oncopy == "function";
  })();

  var badZoomedRects = null;
  function hasBadZoomedRects(measure) {
    if (badZoomedRects != null) return badZoomedRects;
    var node = removeChildrenAndAdd(measure, elt("span", "x"));
    var normal = node.getBoundingClientRect();
    var fromRange = range(node, 0, 1).getBoundingClientRect();
    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
  }

  // KEY NAMES

  var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
                  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
                  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
                  46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete",
                  173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
                  221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
                  63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"};
  CodeMirror.keyNames = keyNames;
  (function() {
    // Number keys
    for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
    // Alphabetic keys
    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
    // Function keys
    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
  })();

  // BIDI HELPERS

  function iterateBidiSections(order, from, to, f) {
    if (!order) return f(from, to, "ltr");
    var found = false;
    for (var i = 0; i < order.length; ++i) {
      var part = order[i];
      if (part.from < to && part.to > from || from == to && part.to == from) {
        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
        found = true;
      }
    }
    if (!found) f(from, to, "ltr");
  }

  function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
  function bidiRight(part) { return part.level % 2 ? part.from : part.to; }

  function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
  function lineRight(line) {
    var order = getOrder(line);
    if (!order) return line.text.length;
    return bidiRight(lst(order));
  }

  function lineStart(cm, lineN) {
    var line = getLine(cm.doc, lineN);
    var visual = visualLine(line);
    if (visual != line) lineN = lineNo(visual);
    var order = getOrder(visual);
    var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
    return Pos(lineN, ch);
  }
  function lineEnd(cm, lineN) {
    var merged, line = getLine(cm.doc, lineN);
    while (merged = collapsedSpanAtEnd(line)) {
      line = merged.find(1, true).line;
      lineN = null;
    }
    var order = getOrder(line);
    var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
    return Pos(lineN == null ? lineNo(line) : lineN, ch);
  }
  function lineStartSmart(cm, pos) {
    var start = lineStart(cm, pos.line);
    var line = getLine(cm.doc, start.line);
    var order = getOrder(line);
    if (!order || order[0].level == 0) {
      var firstNonWS = Math.max(0, line.text.search(/\S/));
      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
      return Pos(start.line, inWS ? 0 : firstNonWS);
    }
    return start;
  }

  function compareBidiLevel(order, a, b) {
    var linedir = order[0].level;
    if (a == linedir) return true;
    if (b == linedir) return false;
    return a < b;
  }
  var bidiOther;
  function getBidiPartAt(order, pos) {
    bidiOther = null;
    for (var i = 0, found; i < order.length; ++i) {
      var cur = order[i];
      if (cur.from < pos && cur.to > pos) return i;
      if ((cur.from == pos || cur.to == pos)) {
        if (found == null) {
          found = i;
        } else if (compareBidiLevel(order, cur.level, order[found].level)) {
          if (cur.from != cur.to) bidiOther = found;
          return i;
        } else {
          if (cur.from != cur.to) bidiOther = i;
          return found;
        }
      }
    }
    return found;
  }

  function moveInLine(line, pos, dir, byUnit) {
    if (!byUnit) return pos + dir;
    do pos += dir;
    while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
    return pos;
  }

  // This is needed in order to move 'visually' through bi-directional
  // text -- i.e., pressing left should make the cursor go left, even
  // when in RTL text. The tricky part is the 'jumps', where RTL and
  // LTR text touch each other. This often requires the cursor offset
  // to move more than one unit, in order to visually move one unit.
  function moveVisually(line, start, dir, byUnit) {
    var bidi = getOrder(line);
    if (!bidi) return moveLogically(line, start, dir, byUnit);
    var pos = getBidiPartAt(bidi, start), part = bidi[pos];
    var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);

    for (;;) {
      if (target > part.from && target < part.to) return target;
      if (target == part.from || target == part.to) {
        if (getBidiPartAt(bidi, target) == pos) return target;
        part = bidi[pos += dir];
        return (dir > 0) == part.level % 2 ? part.to : part.from;
      } else {
        part = bidi[pos += dir];
        if (!part) return null;
        if ((dir > 0) == part.level % 2)
          target = moveInLine(line, part.to, -1, byUnit);
        else
          target = moveInLine(line, part.from, 1, byUnit);
      }
    }
  }

  function moveLogically(line, start, dir, byUnit) {
    var target = start + dir;
    if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
    return target < 0 || target > line.text.length ? null : target;
  }

  // Bidirectional ordering algorithm
  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
  // that this (partially) implements.

  // One-char codes used for character types:
  // L (L):   Left-to-Right
  // R (R):   Right-to-Left
  // r (AL):  Right-to-Left Arabic
  // 1 (EN):  European Number
  // + (ES):  European Number Separator
  // % (ET):  European Number Terminator
  // n (AN):  Arabic Number
  // , (CS):  Common Number Separator
  // m (NSM): Non-Spacing Mark
  // b (BN):  Boundary Neutral
  // s (B):   Paragraph Separator
  // t (S):   Segment Separator
  // w (WS):  Whitespace
  // N (ON):  Other Neutrals

  // Returns null if characters are ordered as they appear
  // (left-to-right), or an array of sections ({from, to, level}
  // objects) in the order in which they occur visually.
  var bidiOrdering = (function() {
    // Character types for codepoints 0 to 0xff
    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
    // Character types for codepoints 0x600 to 0x6ff
    var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
    function charType(code) {
      if (code <= 0xf7) return lowTypes.charAt(code);
      else if (0x590 <= code && code <= 0x5f4) return "R";
      else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
      else if (0x6ee <= code && code <= 0x8ac) return "r";
      else if (0x2000 <= code && code <= 0x200b) return "w";
      else if (code == 0x200c) return "b";
      else return "L";
    }

    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
    // Browsers seem to always treat the boundaries of block elements as being L.
    var outerType = "L";

    function BidiSpan(level, from, to) {
      this.level = level;
      this.from = from; this.to = to;
    }

    return function(str) {
      if (!bidiRE.test(str)) return false;
      var len = str.length, types = [];
      for (var i = 0, type; i < len; ++i)
        types.push(type = charType(str.charCodeAt(i)));

      // W1. Examine each non-spacing mark (NSM) in the level run, and
      // change the type of the NSM to the type of the previous
      // character. If the NSM is at the start of the level run, it will
      // get the type of sor.
      for (var i = 0, prev = outerType; i < len; ++i) {
        var type = types[i];
        if (type == "m") types[i] = prev;
        else prev = type;
      }

      // W2. Search backwards from each instance of a European number
      // until the first strong type (R, L, AL, or sor) is found. If an
      // AL is found, change the type of the European number to Arabic
      // number.
      // W3. Change all ALs to R.
      for (var i = 0, cur = outerType; i < len; ++i) {
        var type = types[i];
        if (type == "1" && cur == "r") types[i] = "n";
        else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
      }

      // W4. A single European separator between two European numbers
      // changes to a European number. A single common separator between
      // two numbers of the same type changes to that type.
      for (var i = 1, prev = types[0]; i < len - 1; ++i) {
        var type = types[i];
        if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
        else if (type == "," && prev == types[i+1] &&
                 (prev == "1" || prev == "n")) types[i] = prev;
        prev = type;
      }

      // W5. A sequence of European terminators adjacent to European
      // numbers changes to all European numbers.
      // W6. Otherwise, separators and terminators change to Other
      // Neutral.
      for (var i = 0; i < len; ++i) {
        var type = types[i];
        if (type == ",") types[i] = "N";
        else if (type == "%") {
          for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
          var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
          for (var j = i; j < end; ++j) types[j] = replace;
          i = end - 1;
        }
      }

      // W7. Search backwards from each instance of a European number
      // until the first strong type (R, L, or sor) is found. If an L is
      // found, then change the type of the European number to L.
      for (var i = 0, cur = outerType; i < len; ++i) {
        var type = types[i];
        if (cur == "L" && type == "1") types[i] = "L";
        else if (isStrong.test(type)) cur = type;
      }

      // N1. A sequence of neutrals takes the direction of the
      // surrounding strong text if the text on both sides has the same
      // direction. European and Arabic numbers act as if they were R in
      // terms of their influence on neutrals. Start-of-level-run (sor)
      // and end-of-level-run (eor) are used at level run boundaries.
      // N2. Any remaining neutrals take the embedding direction.
      for (var i = 0; i < len; ++i) {
        if (isNeutral.test(types[i])) {
          for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
          var before = (i ? types[i-1] : outerType) == "L";
          var after = (end < len ? types[end] : outerType) == "L";
          var replace = before || after ? "L" : "R";
          for (var j = i; j < end; ++j) types[j] = replace;
          i = end - 1;
        }
      }

      // Here we depart from the documented algorithm, in order to avoid
      // building up an actual levels array. Since there are only three
      // levels (0, 1, 2) in an implementation that doesn't take
      // explicit embedding into account, we can build up the order on
      // the fly, without following the level-based algorithm.
      var order = [], m;
      for (var i = 0; i < len;) {
        if (countsAsLeft.test(types[i])) {
          var start = i;
          for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
          order.push(new BidiSpan(0, start, i));
        } else {
          var pos = i, at = order.length;
          for (++i; i < len && types[i] != "L"; ++i) {}
          for (var j = pos; j < i;) {
            if (countsAsNum.test(types[j])) {
              if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
              var nstart = j;
              for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
              order.splice(at, 0, new BidiSpan(2, nstart, j));
              pos = j;
            } else ++j;
          }
          if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
        }
      }
      if (order[0].level == 1 && (m = str.match(/^\s+/))) {
        order[0].from = m[0].length;
        order.unshift(new BidiSpan(0, 0, m[0].length));
      }
      if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
        lst(order).to -= m[0].length;
        order.push(new BidiSpan(0, len - m[0].length, len));
      }
      if (order[0].level == 2)
        order.unshift(new BidiSpan(1, order[0].to, order[0].to));
      if (order[0].level != lst(order).level)
        order.push(new BidiSpan(order[0].level, len, len));

      return order;
    };
  })();

  // THE END

  CodeMirror.version = "5.4.1";

  return CodeMirror;
});(function (mod) {
    mod(CodeMirror);
})(function (CodeMirror) {
    var Pos = CodeMirror.Pos;

    function forEach (arr, f) {
        for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
    }

    function arrayContains (arr, item) {
        if (!Array.prototype.indexOf) {
            var i = arr.length;
            while (i--) {
                if (arr[i] === item) {
                    return true;
                }
            }
            return false;
        }
        return arr.indexOf(item) != -1;
    }

    function scriptHint (editor, keywords, getToken, options) {
        // Find the token at the cursor
        var cur = editor.getCursor(), token = getToken(editor, cur);
        if (/\b(?:string)\b/.test(token.type)) {
            return;
        }
        token.state = CodeMirror.innerMode(editor.getMode(), token.state).state;

        if (!/^[\w$_]*$/.test(token.string)) {
            token = {
                start: cur.ch, end: cur.ch, string: "", state: token.state,
                type: token.string == "." ? "property" : null
            };
        } else if (token.end > cur.ch) {
            token.end = cur.ch;
            token.string = token.string.slice(0, cur.ch - token.start);
        }

        var tprop = token;
        // If it is a property, find out what it is a property of.
        while (tprop.type == "property") {
            tprop = getToken(editor, Pos(cur.line, tprop.start));
            if (tprop.string != ".") return;
            tprop = getToken(editor, Pos(cur.line, tprop.start));
            if (!context) var context = [];
            context.push(tprop);
        }
        return {
            list: getCompletions(token, context, keywords, options),
            from: Pos(cur.line, token.start),
            to: Pos(cur.line, token.end)
        };
    }

    function getFormulaKeywords () {
        return BI.FormulaCollections;
    }

    function formulaHint (editor, options) {
        return scriptHint(editor, getFormulaKeywords(),
            function (e, cur) {
                return e.getTokenAt(cur);
            },
            options);
    }
    CodeMirror.registerHelper("hint", "formula", formulaHint);

    function getCompletions (token, context, keywords, options) {
        var found = [], start = token.string;
        if (!start) {
            return found;
        }
        function maybeAdd (str) {
            if (str.lastIndexOf(start, 0) == 0 && !arrayContains(found, str)) {
                found.push(str);
            }
        }

        if (context && context.length) {
            context.pop();
        } else {
            forEach(keywords, maybeAdd);
        }
        return found;
    }
});(function (mod) {
    mod(CodeMirror);
})(function (CodeMirror) {
    "use strict";

    CodeMirror.defineMode("formula", function () {
        function wordObj (words) {
            var o = {};
            for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
            return o;
        }

        var atoms = wordObj(["false", "true"]);
        var keywords = wordObj(BI.FormulaCollections);

        function tokenBase (stream, state) {
            if (stream.eatSpace()) {
                return null;
            }
            var ch = stream.next();

            if (ch === "\"" || ch === "'") {
                nextUntilUnescaped(stream, ch);
                return "string";
            }
            if (ch === "\u200b") {
                nextUntilUnescaped(stream, ch);
                return "field";
            }
            if (/[\[\],\(\)]/.test(ch)) {
                return "bracket";
            }

            // richie：暂时不需要解析操作符号
            // if (/[+\-*\/=<>!&|]/.test(ch)) {
            //  return 'operator';
            // }
            // if (/\d|\d./.test(ch)) {
            //    stream.eatWhile(/\d|\./);
            //    if (stream.eol() || !/\w/.test(stream.peek())) {
            //        return 'number';
            //    }
            // }



            stream.eatWhile(/[\w-]/);
            var word = stream.current();
            if (atoms.hasOwnProperty(word)) {
                return "atom";
            }
            if (keywords.hasOwnProperty(word)) {
                return "keyword";
            }
            return null;
        }

        function nextUntilUnescaped (stream, end) {
            var escaped = false, next;
            while ((next = stream.next()) != null) {
                if (next === end && !escaped) {
                    return false;
                }
                escaped = !escaped && next === "\\";
            }
            return escaped;
        }

        function tokenize (stream, state) {
            return (state.tokens[0] || tokenBase)(stream, state);
        }

        return {
            startState: function () {
                return {tokens: []};
            },
            token: function (stream, state) {
                return tokenize(stream, state);
            },
            fold: "brace"
        };
    });
    CodeMirror.defineMIME("text/fx-formula", "formula");
});// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function (mod) {
    mod(CodeMirror);
})(function (CodeMirror) {
    "use strict";

    var HINT_ELEMENT_CLASS = "CodeMirror-hint";
    var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";

    // This is the old interface, kept around for now to stay
    // backwards-compatible.
    CodeMirror.showHint = function (cm, getHints, options) {
        if (!getHints) return cm.showHint(options);
        if (options && options.async) getHints.async = true;
        var newOpts = {hint: getHints};
        if (options) for (var prop in options) newOpts[prop] = options[prop];
        return cm.showHint(newOpts);
    };

    CodeMirror.defineExtension("showHint", function (options) {
        // We want a single cursor position.
        if (this.listSelections().length > 1 || this.somethingSelected()) return;

        if (this.state.completionActive) this.state.completionActive.close();
        var completion = this.state.completionActive = new Completion(this, options);
        if (!completion.options.hint) return;

        CodeMirror.signal(this, "startCompletion", this);
        completion.update(true);
    });

    function Completion (cm, options) {
        this.cm = cm;
        this.options = this.buildOptions(options);
        this.widget = null;
        this.debounce = 0;
        this.tick = 0;
        this.startPos = this.cm.getCursor();
        this.startLen = this.cm.getLine(this.startPos.line).length;

        var self = this;
        cm.on("cursorActivity", this.activityFunc = function () {
            self.cursorActivity();
        });
    }

    var requestAnimationFrame = window.requestAnimationFrame || function (fn) {
        return setTimeout(fn, 1000 / 60);
    };
    var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout;

    Completion.prototype = {
        close: function () {
            if (!this.active()) return;
            this.cm.state.completionActive = null;
            this.tick = null;
            this.cm.off("cursorActivity", this.activityFunc);

            if (this.widget && this.data) CodeMirror.signal(this.data, "close");
            if (this.widget) this.widget.close();
            CodeMirror.signal(this.cm, "endCompletion", this.cm);
        },

        active: function () {
            return this.cm.state.completionActive == this;
        },

        pick: function (data, i) {
            var completion = data.list[i];
            if (completion.hint) completion.hint(this.cm, data, completion);
            else {
                this.cm.replaceRange(getText(completion), completion.from || data.from,
                    completion.to || data.to, "complete");
                if(completion.isKeyword === true) {
                }else{
                    var to = this.cm.getCursor();
                    this.cm.markText(completion.from || data.from, to, {className: "#function", atomic: true});
                    this.cm.replaceSelection("() ");
                    to = this.cm.getCursor();
                    to.ch = to.ch - 2;
                    this.cm.setCursor(to);
                    this.cm.focus();
                }
            }
            CodeMirror.signal(data, "pick", completion);
            this.close();
        },

        cursorActivity: function () {
            if (this.debounce) {
                cancelAnimationFrame(this.debounce);
                this.debounce = 0;
            }

            var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
            if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
                pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
                (pos.ch && this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
                this.close();
            } else {
                var self = this;
                this.debounce = requestAnimationFrame(function () {
                    self.update();
                });
                if (this.widget) this.widget.disable();
            }
        },

        update: function (first) {
            if (this.tick == null) return;
            if (this.data) CodeMirror.signal(this.data, "update");
            if (!this.options.hint.async) {
                this.finishUpdate(this.options.hint(this.cm, this.options), first);
            } else {
                var myTick = ++this.tick, self = this;
                this.options.hint(this.cm, function (data) {
                    if (self.tick == myTick) self.finishUpdate(data, first);
                }, this.options);
            }
        },

        finishUpdate: function (data, first) {
            this.data = data;

            var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
            if (this.widget) this.widget.close();
            if (data && data.list.length) {
                if (picked && data.list.length == 1) {
                    this.pick(data, 0);
                } else {
                    this.widget = new Widget(this, data);
                    CodeMirror.signal(data, "shown");
                }
            }
        },

        buildOptions: function (options) {
            var editor = this.cm.options.hintOptions;
            var out = {};
            for (var prop in defaultOptions) out[prop] = defaultOptions[prop];
            if (editor) {
                for (var prop in editor) {if (editor[prop] !== undefined) out[prop] = editor[prop];}
            }
            if (options) {
                for (var prop in options) {if (options[prop] !== undefined) out[prop] = options[prop];}
            }
            return out;
        }
    };

    function getText (completion) {
        if (typeof completion === "string") return completion;
        return completion.text;
    }

    function buildKeyMap (completion, handle) {
        var baseMap = {
            Up: function () {
                handle.moveFocus(-1);
            },
            Down: function () {
                handle.moveFocus(1);
            },
            PageUp: function () {
                handle.moveFocus(-handle.menuSize() + 1, true);
            },
            PageDown: function () {
                handle.moveFocus(handle.menuSize() - 1, true);
            },
            Home: function () {
                handle.setFocus(0);
            },
            End: function () {
                handle.setFocus(handle.length - 1);
            },
            Enter: handle.pick,
            Tab: handle.pick,
            Esc: handle.close
        };
        var custom = completion.options.customKeys;
        var ourMap = custom ? {} : baseMap;

        function addBinding (key, val) {
            var bound;
            if (typeof val !== "string") {
                bound = function (cm) {
                    return val(cm, handle);
                };
            }
            // This mechanism is deprecated
            else if (baseMap.hasOwnProperty(val)) {bound = baseMap[val];} else {bound = val;}
            ourMap[key] = bound;
        }

        if (custom) {
            for (var key in custom) {
                if (custom.hasOwnProperty(key)) {addBinding(key, custom[key]);}
            }
        }
        var extra = completion.options.extraKeys;
        if (extra) {
            for (var key in extra) {
                if (extra.hasOwnProperty(key)) {addBinding(key, extra[key]);}
            }
        }
        return ourMap;
    }

    function getHintElement (hintsElement, el) {
        while (el && el != hintsElement) {
            if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el;
            el = el.parentNode;
        }
    }

    function Widget (completion, data) {
        this.completion = completion;
        this.data = data;
        this.picked = false;
        var widget = this, cm = completion.cm;
        
        var hints = this.hints = document.createElement("ul");
        hints.className = "CodeMirror-hints";
        this.selectedHint = data.selectedHint || 0;

        var completions = data.list;
        for (var i = 0; i < completions.length; ++i) {
            var elt = hints.appendChild(document.createElement("li")), cur = completions[i];
            var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
            if (cur.className != null) className = cur.className + " " + className;
            elt.className = className;
            if (cur.render) cur.render(elt, data, cur);
            else elt.appendChild(document.createTextNode(cur.displayText || getText(cur)));
            elt.hintId = i;
        }

        var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
        var left = pos.left, top = pos.bottom, below = true;
        hints.style.left = left + "px";
        hints.style.top = top + "px";
        // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
        var winW = window.innerWidth || Math.max(document.body.offsetWidth, document.documentElement.offsetWidth);
        var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
        (completion.options.container || document.body).appendChild(hints);
        var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
        if (overlapY > 0) {
            var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top);
            if (curTop - height > 0) { // Fits above cursor
                hints.style.top = (top = pos.top - height) + "px";
                below = false;
            } else if (height > winH) {
                hints.style.height = (winH - 5) + "px";
                hints.style.top = (top = pos.bottom - box.top) + "px";
                var cursor = cm.getCursor();
                if (data.from.ch != cursor.ch) {
                    pos = cm.cursorCoords(cursor);
                    hints.style.left = (left = pos.left) + "px";
                    box = hints.getBoundingClientRect();
                }
            }
        }
        var overlapX = box.right - winW;
        if (overlapX > 0) {
            if (box.right - box.left > winW) {
                hints.style.width = (winW - 5) + "px";
                overlapX -= (box.right - box.left) - winW;
            }
            hints.style.left = (left = pos.left - overlapX) + "px";
        }

        cm.addKeyMap(this.keyMap = buildKeyMap(completion, {
            moveFocus: function (n, avoidWrap) {
                widget.changeActive(widget.selectedHint + n, avoidWrap);
            },
            setFocus: function (n) {
                widget.changeActive(n);
            },
            menuSize: function () {
                return widget.screenAmount();
            },
            length: completions.length,
            close: function () {
                completion.close();
            },
            pick: function () {
                widget.pick();
            },
            data: data
        }));

        if (completion.options.closeOnUnfocus) {
            var closingOnBlur;
            cm.on("blur", this.onBlur = function () {
                closingOnBlur = setTimeout(function () {
                    completion.close();
                }, 100);
            });
            cm.on("focus", this.onFocus = function () {
                clearTimeout(closingOnBlur);
            });
        }

        var startScroll = cm.getScrollInfo();
        cm.on("scroll", this.onScroll = function () {
            var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
            var newTop = top + startScroll.top - curScroll.top;
            var point = newTop - (window.pageYOffset || (document.documentElement || document.body).scrollTop);
            if (!below) point += hints.offsetHeight;
            if (point <= editor.top || point >= editor.bottom) return completion.close();
            hints.style.top = newTop + "px";
            hints.style.left = (left + startScroll.left - curScroll.left) + "px";
        });

        CodeMirror.on(hints, "dblclick", function (e) {
            var t = getHintElement(hints, e.target || e.srcElement);
            if (t && t.hintId != null) {
                widget.changeActive(t.hintId);
                widget.pick();
            }
        });

        CodeMirror.on(hints, "click", function (e) {
            var t = getHintElement(hints, e.target || e.srcElement);
            if (t && t.hintId != null) {
                widget.changeActive(t.hintId);
                if (completion.options.completeOnSingleClick) widget.pick();
            }
        });

        CodeMirror.on(hints, "mousedown", function () {
            setTimeout(function () {
                cm.focus();
            }, 20);
        });

        CodeMirror.signal(data, "select", completions[0], hints.firstChild);
        return true;
    }

    Widget.prototype = {
        close: function () {
            if (this.completion.widget != this) return;
            this.completion.widget = null;
            this.hints.parentNode.removeChild(this.hints);
            this.completion.cm.removeKeyMap(this.keyMap);

            var cm = this.completion.cm;
            if (this.completion.options.closeOnUnfocus) {
                cm.off("blur", this.onBlur);
                cm.off("focus", this.onFocus);
            }
            cm.off("scroll", this.onScroll);
        },

        disable: function () {
            this.completion.cm.removeKeyMap(this.keyMap);
            var widget = this;
            this.keyMap = {
                Enter: function () {
                    widget.picked = true;
                }
            };
            this.completion.cm.addKeyMap(this.keyMap);
        },

        pick: function () {
            this.completion.pick(this.data, this.selectedHint);
        },

        changeActive: function (i, avoidWrap) {
            if (i >= this.data.list.length) {i = avoidWrap ? this.data.list.length - 1 : 0;} else if (i < 0) {i = avoidWrap ? 0 : this.data.list.length - 1;}
            if (this.selectedHint == i) return;
            var node = this.hints.childNodes[this.selectedHint];
            node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
            node = this.hints.childNodes[this.selectedHint = i];
            node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
            if (node.offsetTop < this.hints.scrollTop) {this.hints.scrollTop = node.offsetTop - 3;} else if (node.offsetTop + node.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) {this.hints.scrollTop = node.offsetTop + node.offsetHeight - this.hints.clientHeight + 3;}
            CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
        },

        screenAmount: function () {
            return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
        }
    };

    CodeMirror.registerHelper("hint", "auto", function (cm, options) {
        var helpers = cm.getHelpers(cm.getCursor(), "hint"), words;
        if (helpers.length) {
            for (var i = 0; i < helpers.length; i++) {
                var cur = helpers[i](cm, options);
                if (cur && cur.list.length) return cur;
            }
        } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) {
            if (words) return CodeMirror.hint.fromList(cm, {words: words});
        } else if (CodeMirror.hint.anyword) {
            return CodeMirror.hint.anyword(cm, options);
        }
    });

    CodeMirror.registerHelper("hint", "fromList", function (cm, options) {
        var cur = cm.getCursor(), token = cm.getTokenAt(cur);
        var found = [];
        for (var i = 0; i < options.words.length; i++) {
            var word = options.words[i];
            if (word.slice(0, token.string.length) == token.string) {found.push(word);}
        }

        if (found.length) {
            return {
                list: found,
                from: CodeMirror.Pos(cur.line, token.start),
                to: CodeMirror.Pos(cur.line, token.end)
            };
        }
    });

    CodeMirror.commands.autocomplete = CodeMirror.showHint;

    var defaultOptions = {
        hint: CodeMirror.hint.auto,
        completeSingle: true,
        alignWithWord: true,
        closeCharacters: /[\s()\[\]{};:>,]/,
        closeOnUnfocus: true,
        completeOnSingleClick: true,
        container: null,
        customKeys: null,
        extraKeys: null
    };

    CodeMirror.defineOption("hintOptions", null);
});/**
 * 公式编辑控件
 * @class BI.FormulaEditor
 * @extends BI.Widget
 */
BI.FormulaEditor = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        return $.extend(BI.FormulaEditor.superclass._defaultConfig.apply(), {
            baseCls: "bi-formula-editor",
            watermark: "",
            value: "",
            fieldTextValueMap: {},
            showHint: true,
            lineHeight: 2,
            paramFormatter: function (v) {
                return v;
            }
        });
    },
    _init: function () {
        BI.FormulaEditor.superclass._init.apply(this, arguments);
        var o = this.options, self = this;
        this.editor = CodeMirror(this.element[0], {
            textWrapping: true,
            lineWrapping: true,
            lineNumbers: false,
            mode: "formula",
            // 解决插入字段由括号或其他特殊字符包围时分裂的bug
            specialChars: /[\u0000-\u001f\u007f\u00ad\u200c-\u200f\u2028\u2029\ufeff]/
        });
        o.lineHeight === 1 ? this.element.addClass("codemirror-low-line-height") : this.element.addClass("codemirror-high-line-height");
        this.editor.on("change", function (cm, change) {
            self._checkWaterMark();
            if (o.showHint) {
                CodeMirror.showHint(cm, CodeMirror.formulaHint, {completeSingle: false});
            }
            BI.nextTick(function () {
                self.fireEvent(BI.FormulaEditor.EVENT_CHANGE);
            });
        });

        this.editor.on("focus", function () {
            self._checkWaterMark();
            self.fireEvent(BI.FormulaEditor.EVENT_FOCUS);
        });

        this.editor.on("blur", function () {
            self.fireEvent(BI.FormulaEditor.EVENT_BLUR);
        });

        this.editor.on("keyup", function (cm, keyboard) {
            self.fireEvent(BI.FormulaEditor.EVENT_KEY_UP, keyboard.key);
        });

        if (BI.isKey(this.options.watermark)) {
            var self = this;
            this.watermark = BI.createWidget({
                type: "bi.label",
                cls: "bi-water-mark",
                text: this.options.watermark,
                whiteSpace: "nowrap",
                textAlign: "left"
            });
            BI.createWidget({
                type: "bi.absolute",
                element: self,
                items: [{
                    el: self.watermark,
                    left: 0,
                    top: 0
                }]
            });

            this.watermark.element.bind(
                "mousedown", function (e) {
                    self.insertString("");
                    self.editor.focus();
                    e.stopEvent();
                }
            );
            this.watermark.element.bind("click", function (e) {
                self.editor.focus();
                e.stopEvent();
            });
            this.watermark.element.css({
                position: "absolute",
                left: 3,
                right: 3,
                top: 6,
                bottom: 0
            });
        }

    },

    mounted: function () {
        var o = this.options;
        if(BI.isNotNull(o.value)) {
            this.setValue(o.value);
        }
    },

    _checkWaterMark: function () {
        var o = this.options;
        if (!this.disabledWaterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
            this.watermark && this.watermark.visible();
        } else {
            this.watermark && this.watermark.invisible();
        }
    },

    disableWaterMark: function () {
        this.disabledWaterMark = true;
        this._checkWaterMark();
    },

    focus: function () {
        this.editor.focus();
    },

    /**
     * 添加字段
     * @param fieldId
     * @param force, 判断是否强制不标红
     */
    insertField: function (fieldId, force) {
        var value = fieldId;
        var fieldFormattedName = this.options.paramFormatter(fieldId) || "undefined";
        var from = this.editor.getCursor();
        // 解决插入字段由括号或其他特殊字符包围时分裂的bug,在两端以不可见字符包裹一下
        var showName = fieldFormattedName.replaceAll("^<!.*!>$", function (str) {
            return str.substring(2, str.length - 2);
        });
        this.editor.replaceSelection("\u200b" + showName + "\u200b");
        var to = this.editor.getCursor();
        var className = "fieldName";
        if (BI.isNotNull(fieldFormattedName.match("^<!.*!>$")) && !force) {
            className = "error-field";
        }
        this.editor.markText(from, to, {className: className, atomic: true, startStyle: "start", endStyle: "end", value: value, replacedWith: $("<span class='" + className + "  start end' />").text(showName)[0]});
        this.editor.focus();
    },

    insertFunction: function (fn) {
        var from = this.editor.getCursor();
        this.editor.replaceSelection(fn);
        var to = this.editor.getCursor();
        this.editor.markText(from, to, {className: "#function", atomic: true});
        this.editor.replaceSelection("() ");
        to = this.editor.getCursor();
        to.ch = to.ch - 2;
        this.editor.setCursor(to);
        this.editor.focus();
    },
    insertOperator: function (op) {
        var from = this.editor.getCursor();
        this.editor.replaceSelection(op);
        var to = this.editor.getCursor();
        this.editor.markText(from, to, {className: "%operator", atomic: true});
        this.editor.replaceSelection(" ");
        this.editor.focus();
    },

    setFunction: function (v) {
        var from = this.editor.getCursor();
        this.editor.replaceSelection(v);
        var to = this.editor.getCursor();
        this.editor.markText(from, to, {className: "#function", atomic: true});
    },

    insertString: function (str) {
        this.editor.replaceSelection(str);
        this.editor.focus();
    },

    getFormulaString: function () {
        return this.editor.getValue();
    },

    getUsedFields: function () {
        var fieldMap = this.options.fieldTextValueMap;
        var fields = [];
        this.editor.getValue(true, function (line) {
            var value = line.text;
            _.forEach(line.markedSpans, function (i, ms) {
                switch (i.marker.className) {
                    case "fieldName":
                    case "error-field":
                        // 因为插入字段的时候首尾加了不可见字符，所以首尾缩进一个字符
                        var dId = i.marker.value;
                        if (!fields.contains(dId)) {
                            fields.push(dId);
                        }

                }
            });
        });
        return fields;
    },

    getCheckString: function () {
        return this.editor.getValue(true, function (line) {
            var rawText = line.text, value = line.text, num = 0;
            value.text = rawText;
            var markedSpans = _.clone(line.markedSpans) || [];
            markedSpans.sort(function (a, b) {
                return a.from > b.from;
            });

            _.forEach(markedSpans, function (i, ms) {

                switch (i.marker.className) {
                    case "fieldName":
                    case "error-field":
                        var fieldNameLength = i.to - i.from;
                        value = value.substr(0, i.from + num) + "$a" + value.substr(i.to + num, value.length);
                        num = num + 2 - fieldNameLength;
                        break;
                }

            });
            return value;
        });
    },

    getValue: function () {
        var fieldMap = this.options.fieldTextValueMap;
        var v = this.editor.getValue("\n", function (line) {
            var rawText = line.text, value = line.text, num = 0;
            value.text = rawText;
            var markedSpans = _.clone(line.markedSpans) || [];
            markedSpans.sort(function (a, b) {
                return a.from > b.from;
            });

            _.forEach(markedSpans, function (i, ms) {
                switch (i.marker.className) {
                    case "fieldName":
                    case "error-field":
                        var fieldNameLength = i.to - i.from;
                        var start = i.from + num + 1;
                        var end = fieldNameLength - 2;
                        var fieldId = i.marker.value;
                        value = value.substr(0, i.from + num) + "$\{" + fieldId + "\}" + value.substr(i.to + num, value.length);
                        num += fieldId.length - fieldNameLength + 3;
                        break;
                }
            });
            return value;
        });
        return v.replaceAll("(\\$\\{.*?\\})\\s", "$1");
    },

    setValue: function (value) {
        this.editor.setValue(value);
    },

    setFieldTextValueMap: function (fieldTextValueMap) {
        this.options.fieldTextValueMap = fieldTextValueMap;
    },

    refresh: function () {
        var self = this;
        BI.nextTick(function () {
            self.editor.refresh();
        });
    }

});
BI.FormulaEditor.EVENT_CHANGE = "EVENT_CHANGE";
BI.FormulaEditor.EVENT_BLUR = "EVENT_BLUR";
BI.FormulaEditor.EVENT_FOCUS = "EVENT_FOCUS";
BI.FormulaEditor.EVENT_KEY_UP = "EVENT_KEY_UP";
BI.shortcut("bi.formula_editor", BI.FormulaEditor);
/**
 * z-index在1亿层级
 * 弹出提示消息框，用于模拟阻塞操作（通过回调函数实现）
 * @class BI.Msg
 */
$.extend(BI, {
    Msg: function () {

        var messageShow, $mask, $pop;

        return {
            alert: function (title, message, callback) {
                this._show(false, title, message, callback);
            },
            confirm: function (title, message, callback) {
                this._show(true, title, message, callback);
            },
            prompt: function (title, message, value, callback, min_width) {
                // BI.Msg.prompt(title, message, value, callback, min_width);
            },
            toast: function (message, options, context) {
                options = options || {};
                context = context || $("body");
                var level = options.level || "normal";
                var autoClose = BI.isNull(options.autoClose) ? true : options.autoClose;
                var toast = BI.createWidget({
                    type: "bi.toast",
                    cls: "bi-message-animate bi-message-leave",
                    level: level,
                    autoClose: autoClose,
                    text: message
                });
                BI.createWidget({
                    type: "bi.absolute",
                    element: context,
                    items: [{
                        el: toast,
                        left: "50%",
                        top: 10
                    }]
                });
                toast.element.css({"margin-left": -1 * toast.element.outerWidth() / 2});
                toast.element.removeClass("bi-message-leave").addClass("bi-message-enter");

                autoClose && BI.delay(function () {
                    toast.element.removeClass("bi-message-enter").addClass("bi-message-leave");
                    BI.delay(function () {
                        toast.destroy();
                    }, 1000);
                }, 5000);
            },
            _show: function (hasCancel, title, message, callback) {
                $mask = $("<div class=\"bi-z-index-mask\">").css({
                    position: "absolute",
                    zIndex: BI.zIndex_tip - 2,
                    top: 0,
                    left: 0,
                    right: 0,
                    bottom: 0,
                    opacity: 0.5
                }).appendTo("body");
                $pop = $("<div class=\"bi-message-depend\">").css({
                    position: "absolute",
                    zIndex: BI.zIndex_tip - 1,
                    top: 0,
                    left: 0,
                    right: 0,
                    bottom: 0
                }).appendTo("body");
                var close = function () {
                    messageShow.destroy();
                    $mask.remove();
                };
                var controlItems = [];
                if (hasCancel === true) {
                    controlItems.push({
                        el: {
                            type: "bi.button",
                            text: BI.i18nText("BI-Basic_Cancel"),
                            level: "ignore",
                            handler: function () {
                                close();
                                if (BI.isFunction(callback)) {
                                    callback.apply(null, [false]);
                                }
                            }
                        }
                    });
                }
                controlItems.push({
                    el: {
                        type: "bi.button",
                        text: BI.i18nText("BI-Basic_OK"),
                        handler: function () {
                            close();
                            if (BI.isFunction(callback)) {
                                callback.apply(null, [true]);
                            }
                        }
                    }
                });
                var conf = {
                    element: $pop,
                    type: "bi.center_adapt",
                    items: [
                        {
                            type: "bi.border",
                            cls: "bi-message-content bi-card",
                            items: {
                                north: {
                                    el: {
                                        type: "bi.border",
                                        cls: "bi-message-title bi-background",
                                        items: {
                                            center: {
                                                el: {
                                                    type: "bi.label",
                                                    text: title || BI.i18nText("BI-Basic_Prompt"),
                                                    textAlign: "left",
                                                    hgap: 20,
                                                    height: 50
                                                }
                                            },
                                            east: {
                                                el: {
                                                    type: "bi.icon_button",
                                                    cls: "bi-message-close close-font",
                                                    //                                                    height: 50,
                                                    handler: function () {
                                                        close();
                                                    }
                                                },
                                                width: 60
                                            }
                                        }
                                    },
                                    height: 50
                                },
                                center: {
                                    el: {
                                        type: "bi.text",
                                        cls: "bi-message-text",
                                        tgap: 60,
                                        hgap: 20,
                                        lineHeight: 30,
                                        whiteSpace: "normal",
                                        text: message
                                    }
                                },
                                south: {
                                    el: {
                                        type: "bi.absolute",
                                        items: [{
                                            el: {
                                                type: "bi.right_vertical_adapt",
                                                hgap: 5,
                                                items: controlItems
                                            },
                                            top: 0,
                                            left: 20,
                                            right: 20,
                                            bottom: 0
                                        }]

                                    },
                                    height: 60
                                }
                            },
                            width: 400,
                            height: 300
                        }
                    ]
                };

                messageShow = BI.createWidget(conf);
            }
        };
    }()
});/**
 * GridView
 *
 * Created by GUY on 2016/1/11.
 * @class BI.GridView
 * @extends BI.Widget
 */
BI.GridView = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.GridView.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-grid-view",
            // width: 400, //必设
            // height: 300, //必设
            overflowX: true,
            overflowY: true,
            overscanColumnCount: 0,
            overscanRowCount: 0,
            rowHeightGetter: BI.emptyFn, // number类型或function类型
            columnWidthGetter: BI.emptyFn, // number类型或function类型
            // estimatedColumnSize: 100, //columnWidthGetter为function时必设
            // estimatedRowSize: 30, //rowHeightGetter为function时必设
            scrollLeft: 0,
            scrollTop: 0,
            items: []
        });
    },

    _init: function () {
        BI.GridView.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.renderedCells = [];
        this.renderedKeys = [];
        this.renderRange = {};
        this._scrollLock = false;
        this._debounceRelease = BI.debounce(function () {
            self._scrollLock = false;
        }, 1000 / 60);
        this.container = BI.createWidget({
            type: "bi.absolute"
        });
        this.element.scroll(function () {
            if (self._scrollLock === true) {
                return;
            }
            o.scrollLeft = self.element.scrollLeft();
            o.scrollTop = self.element.scrollTop();
            self._calculateChildrenToRender();
            self.fireEvent(BI.GridView.EVENT_SCROLL, {
                scrollLeft: o.scrollLeft,
                scrollTop: o.scrollTop
            });
        });
        BI.createWidget({
            type: "bi.vertical",
            element: this,
            scrollable: o.overflowX === true && o.overflowY === true,
            scrolly: o.overflowX === false && o.overflowY === true,
            scrollx: o.overflowX === true && o.overflowY === false,
            items: [this.container]
        });
        if (o.items.length > 0) {
            this._populate();
        }
        if (o.scrollLeft !== 0 || o.scrollTop !== 0) {
            BI.nextTick(function () {
                self.element.scrollTop(o.scrollTop);
                self.element.scrollLeft(o.scrollLeft);
            });
        }
    },

    _getOverscanIndices: function (cellCount, overscanCellsCount, startIndex, stopIndex) {
        return {
            overscanStartIndex: Math.max(0, startIndex - overscanCellsCount),
            overscanStopIndex: Math.min(cellCount - 1, stopIndex + overscanCellsCount)
        };
    },

    _calculateChildrenToRender: function () {
        var self = this, o = this.options;

        var width = o.width, height = o.height, scrollLeft = BI.clamp(o.scrollLeft, 0, this._getMaxScrollLeft()),
            scrollTop = BI.clamp(o.scrollTop, 0, this._getMaxScrollTop()),
            overscanColumnCount = o.overscanColumnCount, overscanRowCount = o.overscanRowCount;

        if (height > 0 && width > 0) {
            var visibleColumnIndices = this._columnSizeAndPositionManager.getVisibleCellRange(width, scrollLeft);
            var visibleRowIndices = this._rowSizeAndPositionManager.getVisibleCellRange(height, scrollTop);

            if (BI.isEmpty(visibleColumnIndices) || BI.isEmpty(visibleRowIndices)) {
                return;
            }
            var horizontalOffsetAdjustment = this._columnSizeAndPositionManager.getOffsetAdjustment(width, scrollLeft);
            var verticalOffsetAdjustment = this._rowSizeAndPositionManager.getOffsetAdjustment(height, scrollTop);

            this._renderedColumnStartIndex = visibleColumnIndices.start;
            this._renderedColumnStopIndex = visibleColumnIndices.stop;
            this._renderedRowStartIndex = visibleRowIndices.start;
            this._renderedRowStopIndex = visibleRowIndices.stop;

            var overscanColumnIndices = this._getOverscanIndices(this.columnCount, overscanColumnCount, this._renderedColumnStartIndex, this._renderedColumnStopIndex);

            var overscanRowIndices = this._getOverscanIndices(this.rowCount, overscanRowCount, this._renderedRowStartIndex, this._renderedRowStopIndex);

            var columnStartIndex = overscanColumnIndices.overscanStartIndex;
            var columnStopIndex = overscanColumnIndices.overscanStopIndex;
            var rowStartIndex = overscanRowIndices.overscanStartIndex;
            var rowStopIndex = overscanRowIndices.overscanStopIndex;

            // 算区间size
            var minRowDatum = this._rowSizeAndPositionManager.getSizeAndPositionOfCell(rowStartIndex);
            var minColumnDatum = this._columnSizeAndPositionManager.getSizeAndPositionOfCell(columnStartIndex);
            var maxRowDatum = this._rowSizeAndPositionManager.getSizeAndPositionOfCell(rowStopIndex);
            var maxColumnDatum = this._columnSizeAndPositionManager.getSizeAndPositionOfCell(columnStopIndex);
            var top = minRowDatum.offset + verticalOffsetAdjustment;
            var left = minColumnDatum.offset + horizontalOffsetAdjustment;
            var bottom = maxRowDatum.offset + verticalOffsetAdjustment + maxRowDatum.size;
            var right = maxColumnDatum.offset + horizontalOffsetAdjustment + maxColumnDatum.size;
            // 如果滚动的区间并没有超出渲染的范围
            if (top >= this.renderRange.minY && bottom <= this.renderRange.maxY && left >= this.renderRange.minX && right <= this.renderRange.maxX) {
                return;
            }

            var renderedCells = [], renderedKeys = {}, renderedWidgets = {};
            var minX = this._getMaxScrollLeft(), minY = this._getMaxScrollTop(), maxX = 0, maxY = 0;
            var count = 0;
            for (var rowIndex = rowStartIndex; rowIndex <= rowStopIndex; rowIndex++) {
                var rowDatum = this._rowSizeAndPositionManager.getSizeAndPositionOfCell(rowIndex);

                for (var columnIndex = columnStartIndex; columnIndex <= columnStopIndex; columnIndex++) {
                    var key = rowIndex + "-" + columnIndex;
                    var columnDatum = this._columnSizeAndPositionManager.getSizeAndPositionOfCell(columnIndex);

                    var index = this.renderedKeys[key] && this.renderedKeys[key][2];
                    var child;
                    if (index >= 0) {
                        if (columnDatum.size !== this.renderedCells[index]._width) {
                            this.renderedCells[index]._width = columnDatum.size;
                            this.renderedCells[index].el.setWidth(columnDatum.size);
                        }
                        if (rowDatum.size !== this.renderedCells[index]._height) {
                            this.renderedCells[index]._height = rowDatum.size;
                            this.renderedCells[index].el.setHeight(rowDatum.size);
                        }
                        if (this.renderedCells[index]._left !== columnDatum.offset + horizontalOffsetAdjustment) {
                            this.renderedCells[index].el.element.css("left", (columnDatum.offset + horizontalOffsetAdjustment) + "px");
                        }
                        if (this.renderedCells[index]._top !== rowDatum.offset + verticalOffsetAdjustment) {
                            this.renderedCells[index].el.element.css("top", (rowDatum.offset + verticalOffsetAdjustment) + "px");
                        }
                        renderedCells.push(child = this.renderedCells[index]);
                    } else {
                        child = BI.createWidget(BI.extend({
                            type: "bi.label",
                            width: columnDatum.size,
                            height: rowDatum.size
                        }, o.items[rowIndex][columnIndex], {
                            cls: (o.items[rowIndex][columnIndex].cls || "") + " grid-cell" + (rowIndex === 0 ? " first-row" : "") + (columnIndex === 0 ? " first-col" : ""),
                            _rowIndex: rowIndex,
                            _columnIndex: columnIndex,
                            _left: columnDatum.offset + horizontalOffsetAdjustment,
                            _top: rowDatum.offset + verticalOffsetAdjustment
                        }));
                        renderedCells.push({
                            el: child,
                            left: columnDatum.offset + horizontalOffsetAdjustment,
                            top: rowDatum.offset + verticalOffsetAdjustment,
                            _left: columnDatum.offset + horizontalOffsetAdjustment,
                            _top: rowDatum.offset + verticalOffsetAdjustment,
                            _width: columnDatum.size,
                            _height: rowDatum.size
                        });
                    }
                    minX = Math.min(minX, columnDatum.offset + horizontalOffsetAdjustment);
                    maxX = Math.max(maxX, columnDatum.offset + horizontalOffsetAdjustment + columnDatum.size);
                    minY = Math.min(minY, rowDatum.offset + verticalOffsetAdjustment);
                    maxY = Math.max(maxY, rowDatum.offset + verticalOffsetAdjustment + rowDatum.size);
                    renderedKeys[key] = [rowIndex, columnIndex, count];
                    renderedWidgets[count] = child;
                    count++;
                }
            }
            // 已存在的， 需要添加的和需要删除的
            var existSet = {}, addSet = {}, deleteArray = [];
            BI.each(renderedKeys, function (i, key) {
                if (self.renderedKeys[i]) {
                    existSet[i] = key;
                } else {
                    addSet[i] = key;
                }
            });
            BI.each(this.renderedKeys, function (i, key) {
                if (existSet[i]) {
                    return;
                }
                if (addSet[i]) {
                    return;
                }
                deleteArray.push(key[2]);
            });
            BI.each(deleteArray, function (i, index) {
                // 性能优化，不调用destroy方法防止触发destroy事件
                self.renderedCells[index].el._destroy();
            });
            var addedItems = [];
            BI.each(addSet, function (index, key) {
                addedItems.push(renderedCells[key[2]]);
            });
            this.container.addItems(addedItems);
            // 拦截父子级关系
            this.container._children = renderedWidgets;
            this.container.attr("items", renderedCells);
            this.renderedCells = renderedCells;
            this.renderedKeys = renderedKeys;
            this.renderRange = {minX: minX, minY: minY, maxX: maxX, maxY: maxY};
        }
    },

    /**
     * 获取真实的可滚动的最大宽度
     * 对于grid_view如果没有全部渲染过，this._columnSizeAndPositionManager.getTotalSize获取的宽度是不准确的
     * 因此在调用setScrollLeft等函数时会造成没法移动到最右端(预估可移动具体太短)
     */
    _getRealMaxScrollLeft: function () {
        var o = this.options;
        var totalWidth = 0;
        BI.count(0, this.columnCount, function (index) {
            totalWidth += o.columnWidthGetter(index);
        });
        return Math.max(0, totalWidth - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
    },

    _getMaxScrollLeft: function () {
        return Math.max(0, this._columnSizeAndPositionManager.getTotalSize() - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
    },

    _getMaxScrollTop: function () {
        return Math.max(0, this._rowSizeAndPositionManager.getTotalSize() - this.options.height + (this.options.overflowY ? BI.DOM.getScrollWidth() : 0));
    },

    _populate: function (items) {
        var self = this, o = this.options;
        this._reRange();
        this.columnCount = 0;
        this.rowCount = 0;
        if (items && items !== this.options.items) {
            this.options.items = items;
        }
        if (BI.isNumber(o.columnCount)) {
            this.columnCount = o.columnCount;
        } else if (o.items.length > 0) {
            this.columnCount = o.items[0].length;
        }
        if (BI.isNumber(o.rowCount)) {
            this.rowCount = o.rowCount;
        } else {
            this.rowCount = o.items.length;
        }
        this.container.setWidth(this.columnCount * o.estimatedColumnSize);
        this.container.setHeight(this.rowCount * o.estimatedRowSize);

        this._columnSizeAndPositionManager = new BI.ScalingCellSizeAndPositionManager(this.columnCount, o.columnWidthGetter, o.estimatedColumnSize);
        this._rowSizeAndPositionManager = new BI.ScalingCellSizeAndPositionManager(this.rowCount, o.rowHeightGetter, o.estimatedRowSize);

        this._calculateChildrenToRender();
        // 元素未挂载时不能设置scrollTop
        try {
            this.element.scrollTop(o.scrollTop);
            this.element.scrollLeft(o.scrollLeft);
        } catch (e) {
        }
    },

    setScrollLeft: function (scrollLeft) {
        if (this.options.scrollLeft === scrollLeft) {
            return;
        }
        this._scrollLock = true;
        this.options.scrollLeft = BI.clamp(scrollLeft || 0, 0, this._getRealMaxScrollLeft());
        this._debounceRelease();
        this._calculateChildrenToRender();
        this.element.scrollLeft(this.options.scrollLeft);
    },

    setScrollTop: function (scrollTop) {
        if (this.options.scrollTop === scrollTop) {
            return;
        }
        this._scrollLock = true;
        this.options.scrollTop = BI.clamp(scrollTop || 0, 0, this._getMaxScrollTop());
        this._debounceRelease();
        this._calculateChildrenToRender();
        this.element.scrollTop(this.options.scrollTop);
    },

    setColumnCount: function (columnCount) {
        this.options.columnCount = columnCount;
    },

    setRowCount: function (rowCount) {
        this.options.rowCount = rowCount;
    },

    setOverflowX: function (b) {
        var self = this;
        if (this.options.overflowX !== !!b) {
            this.options.overflowX = !!b;
            BI.nextTick(function () {
                self.element.css({overflowX: b ? "auto" : "hidden"});
            });
        }
    },

    setOverflowY: function (b) {
        var self = this;
        if (this.options.overflowY !== !!b) {
            this.options.overflowY = !!b;
            BI.nextTick(function () {
                self.element.css({overflowY: b ? "auto" : "hidden"});
            });
        }
    },

    getScrollLeft: function () {
        return this.options.scrollLeft;
    },

    getScrollTop: function () {
        return this.options.scrollTop;
    },

    getMaxScrollLeft: function () {
        return this._getMaxScrollLeft();
    },

    getMaxScrollTop: function () {
        return this._getMaxScrollTop();
    },

    setEstimatedColumnSize: function (width) {
        this.options.estimatedColumnSize = width;
    },

    setEstimatedRowSize: function (height) {
        this.options.estimatedRowSize = height;
    },

    // 重新计算children
    _reRange: function () {
        this.renderRange = {};
    },

    _clearChildren: function () {
        this.container._children = {};
        this.container.attr("items", []);
    },

    restore: function () {
        BI.each(this.renderedCells, function (i, cell) {
            cell.el._destroy();
        });
        this._clearChildren();
        this.renderedCells = [];
        this.renderedKeys = [];
        this.renderRange = {};
        this._scrollLock = false;
    },

    populate: function (items) {
        if (items && items !== this.options.items) {
            this.restore();
        }
        this._populate(items);
    }
});
BI.GridView.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.grid_view", BI.GridView);/**
 * Popover弹出层，
 * @class BI.Popover
 * @extends BI.Widget
 */
BI.Popover = BI.inherit(BI.Widget, {
    _constant: {
        SIZE: {
            SMALL: "small",
            NORMAL: "normal",
            BIG: "big"
        },
        HEADER_HEIGHT: 40
    },

    _defaultConfig: function () {
        return BI.extend(BI.Popover.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-popover bi-card",
            // width: 600,
            // height: 500,
            size: "normal", // small, normal, big
            header: null,
            body: null,
            footer: null
        });
    },
    render: function () {
        var self = this, o = this.options;
        this.startX = 0;
        this.startY = 0;
        this.tracker = new BI.MouseMoveTracker(function (deltaX, deltaY) {
            var size = self._calculateSize();
            var W = $("body").width(), H = $("body").height();
            self.startX += deltaX;
            self.startY += deltaY;
            self.element.css({
                left: BI.clamp(self.startX, 0, W - size.width) + "px",
                top: BI.clamp(self.startY, 0, H - size.height) + "px"
            });
            // BI-12134 没有什么特别好的方法
            BI.Resizers._resize();
        }, function () {
            self.tracker.releaseMouseMoves();
        }, window);
        var items = {
            north: {
                el: {
                    type: "bi.htape",
                    cls: "bi-message-title bi-background",
                    ref: function (_ref) {
                        self.dragger = _ref;
                    },
                    items: [{
                        type: "bi.absolute",
                        items: [{
                            el: BI.isPlainObject(o.header) ? BI.createWidget(o.header, {
                                extraCls: "bi-font-bold"
                            }) : {
                                type: "bi.label",
                                cls: "bi-font-bold",
                                height: this._constant.HEADER_HEIGHT,
                                text: o.header,
                                textAlign: "left"
                            },
                            left: 20,
                            top: 0,
                            right: 0,
                            bottom: 0
                        }]
                    }, {
                        el: {
                            type: "bi.icon_button",
                            cls: "bi-message-close close-font",
                            height: this._constant.HEADER_HEIGHT,
                            handler: function () {
                                self.close();
                            }
                        },
                        width: 56
                    }]
                },
                height: this._constant.HEADER_HEIGHT
            },
            center: {
                el: {
                    type: "bi.absolute",
                    items: [{
                        el: BI.createWidget(o.body),
                        left: 20,
                        top: 10,
                        right: 20,
                        bottom: 0
                    }]
                }
            }
        };
        if (o.footer) {
            items.south = {
                el: {
                    type: "bi.absolute",
                    items: [{
                        el: BI.createWidget(o.footer),
                        left: 20,
                        top: 0,
                        right: 20,
                        bottom: 0
                    }]
                },
                height: 44
            };
        }

        var size = this._calculateSize();

        return {
            type: "bi.border",
            items: items,
            width: size.width,
            height: size.height
        };
    },

    mounted: function () {
        var self = this;
        this.dragger.element.mousedown(function (e) {
            var pos = self.element.offset();
            self.startX = pos.left;
            self.startY = pos.top;
            self.tracker.captureMouseMoves(e);
        });
    },

    _calculateSize: function () {
        var o = this.options;
        var size = {};
        if (BI.isNotNull(o.size)) {
            switch (o.size) {
                case this._constant.SIZE.SMALL:
                    size.width = 450;
                    size.height = 220;
                    break;
                case this._constant.SIZE.BIG:
                    size.width = 900;
                    size.height = 500;
                    break;
                default:
                    size.width = 550;
                    size.height = 500;
            }
        }
        return {
            width: o.width || size.width,
            height: o.height || size.height
        };
    },

    hide: function () {

    },

    open: function () {
        this.show();
        this.fireEvent(BI.Popover.EVENT_OPEN, arguments);
    },

    close: function () {
        this.hide();
        this.fireEvent(BI.Popover.EVENT_CLOSE, arguments);
    },

    setZindex: function (zindex) {
        this.element.css({"z-index": zindex});
    },

    destroyed: function () {
    }
});

BI.shortcut("bi.popover", BI.Popover);

BI.BarPopover = BI.inherit(BI.Popover, {
    _defaultConfig: function () {
        return BI.extend(BI.BarPopover.superclass._defaultConfig.apply(this, arguments), {
            btns: [BI.i18nText(BI.i18nText("BI-Basic_Sure")), BI.i18nText(BI.i18nText("BI-Basic_Cancel"))]
        });
    },

    beforeCreate: function () {
        var self = this, o = this.options;
        o.footer || (o.footer = {
            type: "bi.right_vertical_adapt",
            lgap: 10,
            items: [{
                type: "bi.button",
                text: this.options.btns[1],
                value: 1,
                level: "ignore",
                handler: function (v) {
                    self.fireEvent(BI.Popover.EVENT_CANCEL, v);
                    self.close(v);
                }
            }, {
                type: "bi.button",
                text: this.options.btns[0],
                warningTitle: o.warningTitle,
                value: 0,
                handler: function (v) {
                    self.fireEvent(BI.Popover.EVENT_CONFIRM, v);
                    self.close(v);
                }
            }]
        });
    }
});

BI.shortcut("bi.bar_popover", BI.BarPopover);

BI.Popover.EVENT_CLOSE = "EVENT_CLOSE";
BI.Popover.EVENT_OPEN = "EVENT_OPEN";
BI.Popover.EVENT_CANCEL = "EVENT_CANCEL";
BI.Popover.EVENT_CONFIRM = "EVENT_CONFIRM";
/**
 * 下拉框弹出层, zIndex在1000w
 * @class BI.PopupView
 * @extends BI.Widget
 */
BI.PopupView = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.PopupView.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-popup-view",
            maxWidth: "auto",
            minWidth: 100,
            // maxHeight: 200,
            minHeight: 25,
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0,
            vgap: 0,
            hgap: 0,
            innerVGap: 0,
            direction: BI.Direction.Top, // 工具栏的方向
            stopEvent: false, // 是否停止mousedown、mouseup事件
            stopPropagation: false, // 是否停止mousedown、mouseup向上冒泡
            logic: {
                dynamic: true
            },

            tool: false, // 自定义工具栏
            tabs: [], // 导航栏
            buttons: [], // toolbar栏

            el: {
                type: "bi.button_group",
                items: [],
                chooseType: 0,
                behaviors: {},
                layouts: [{
                    type: "bi.vertical"
                }]
            }
        });
    },

    _init: function () {
        BI.PopupView.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        var fn = function (e) {
                e.stopPropagation();
            }, stop = function (e) {
                e.stopEvent();
                return false;
            };
        this.element.css({
            "z-index": BI.zIndex_popup,
            "min-width": o.minWidth + "px",
            "max-width": o.maxWidth + "px"
        }).bind({click: fn});

        this.element.bind("mousewheel", fn);

        o.stopPropagation && this.element.bind({mousedown: fn, mouseup: fn, mouseover: fn});
        o.stopEvent && this.element.bind({mousedown: stop, mouseup: stop, mouseover: stop});
        this.tool = this._createTool();
        this.tab = this._createTab();
        this.view = this._createView();
        this.toolbar = this._createToolBar();

        this.button_group.on(BI.Controller.EVENT_CHANGE, function (type) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.PopupView.EVENT_CHANGE);
            }
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
            scrolly: false,
            lgap: o.lgap,
            rgap: o.rgap,
            tgap: o.tgap,
            bgap: o.bgap,
            vgap: o.vgap,
            hgap: o.hgap,
            items: BI.LogicFactory.createLogicItemsByDirection(o.direction,
                BI.extend({
                    cls: "list-view-outer bi-card list-view-shadow"
                }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend({}, o.logic, {
                    items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.tool, this.tab, this.view, this.toolbar)
                })))
            )
        }))));
    },

    _createView: function () {
        var o = this.options;
        this.button_group = BI.createWidget(o.el, {type: "bi.button_group", value: o.value});
        this.button_group.element.css({"min-height": o.minHeight + "px", "padding-top": o.innerVGap + "px", "padding-bottom": o.innerVGap + "px"});
        return this.button_group;
    },

    _createTool: function () {
        var o = this.options;
        if (false === o.tool) {
            return;
        }
        return BI.createWidget(o.tool);
    },

    _createTab: function () {
        var o = this.options;
        if (o.tabs.length === 0) {
            return;
        }
        return BI.createWidget({
            type: "bi.center",
            cls: "list-view-tab",
            height: 25,
            items: o.tabs,
            value: o.value
        });
    },

    _createToolBar: function () {
        var o = this.options;
        if (o.buttons.length === 0) {
            return;
        }

        return BI.createWidget({
            type: "bi.center",
            cls: "list-view-toolbar bi-high-light bi-border-top",
            height: 24,
            items: BI.createItems(o.buttons, {
                once: false,
                shadow: true,
                isShadowShowingOnSelected: true
            })
        });
    },

    getView: function () {
        return this.button_group;
    },

    populate: function (items) {
        this.button_group.populate.apply(this.button_group, arguments);
    },

    resetWidth: function (w) {
        this.options.width = w;
        this.element.width(w);
    },

    resetHeight: function (h) {
        var tbHeight = this.toolbar ? (this.toolbar.attr("height") || 24) : 0,
            tabHeight = this.tab ? (this.tab.attr("height") || 25) : 0,
            toolHeight = ((this.tool && this.tool.attr("height")) || 25) * ((this.tool && this.tool.isVisible()) ? 1 : 0);
        this.view.resetHeight ? this.view.resetHeight(h - tbHeight - tabHeight - toolHeight - 2) :
            this.view.element.css({"max-height": (h - tbHeight - tabHeight - toolHeight - 2) + "px"});
    },

    setValue: function (selectedValues) {
        this.tab && this.tab.setValue(selectedValues);
        this.button_group.setValue(selectedValues);
    },

    getValue: function () {
        return this.button_group.getValue();
    }
});
BI.PopupView.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.popup_view", BI.PopupView);/**
 * 搜索面板
 *
 * Created by GUY on 2015/9/28.
 * @class BI.SearcherView
 * @extends BI.Pane
 */

BI.SearcherView = BI.inherit(BI.Pane, {
    _defaultConfig: function () {
        var conf = BI.SearcherView.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-searcher-view bi-card",
            tipText: BI.i18nText("BI-No_Select"),
            chooseType: BI.Selection.Single,

            matcher: {// 完全匹配的构造器
                type: "bi.button_group",
                behaviors: {
                    redmark: function () {
                        return true;
                    }
                },
                items: [],
                layouts: [{
                    type: "bi.vertical"
                }]
            },
            searcher: {
                type: "bi.button_group",
                behaviors: {
                    redmark: function () {
                        return true;
                    }
                },
                items: [],
                layouts: [{
                    type: "bi.vertical"
                }]
            }
        });
    },

    _init: function () {
        BI.SearcherView.superclass._init.apply(this, arguments);
        var self = this, o = this.options;

        this.matcher = BI.createWidget(o.matcher, {
            type: "bi.button_group",
            chooseType: o.chooseType,
            behaviors: {
                redmark: function () {
                    return true;
                }
            },
            layouts: [{
                type: "bi.vertical"
            }],
            value: o.value
        });
        this.matcher.on(BI.Controller.EVENT_CHANGE, function (type, val, ob) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.SearcherView.EVENT_CHANGE, val, ob);
            }
        });
        this.spliter = BI.createWidget({
            type: "bi.vertical",
            height: 1,
            hgap: 10,
            items: [{
                type: "bi.layout",
                height: 1,
                cls: "searcher-view-spliter bi-background"
            }]
        });
        this.searcher = BI.createWidget(o.searcher, {
            type: "bi.button_group",
            chooseType: o.chooseType,
            behaviors: {
                redmark: function () {
                    return true;
                }
            },
            layouts: [{
                type: "bi.vertical"
            }],
            value: o.value
        });
        this.searcher.on(BI.Controller.EVENT_CHANGE, function (type, val, ob) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.SearcherView.EVENT_CHANGE, val, ob);
            }
        });

        BI.createWidget({
            type: "bi.vertical",
            element: this,
            items: [this.matcher, this.spliter, this.searcher]
        });
    },

    startSearch: function () {

    },

    stopSearch: function () {

    },

    setValue: function (v) {
        this.matcher.setValue(v);
        this.searcher.setValue(v);
    },

    getValue: function () {
        return this.matcher.getValue().concat(this.searcher.getValue());
    },

    populate: function (searchResult, matchResult, keyword) {
        searchResult || (searchResult = []);
        matchResult || (matchResult = []);
        this.setTipVisible(searchResult.length + matchResult.length === 0);
        this.spliter.setVisible(BI.isNotEmptyArray(matchResult) && BI.isNotEmptyArray(searchResult));
        this.matcher.populate(matchResult, keyword);
        this.searcher.populate(searchResult, keyword);
    },

    empty: function () {
        this.searcher.empty();
        this.matcher.empty();
    },

    hasMatched: function () {
        return this.matcher.getAllButtons().length > 0;
    }
});
BI.SearcherView.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.searcher_view", BI.SearcherView);/**
 * 表示当前对象
 *
 * Created by GUY on 2017/5/23.
 * @class BI.ListView
 * @extends BI.Widget
 */
BI.ListView = BI.inherit(BI.Widget, {
    props: function () {
        return {
            baseCls: "bi-list-view",
            overscanHeight: 100,
            blockSize: 10,
            scrollTop: 0,
            el: {},
            items: []
        };
    },

    init: function () {
        var self = this;
        this.renderedIndex = -1;
        this.cache = {};
    },

    render: function () {
        var self = this, o = this.options;
        return {
            type: "bi.vertical",
            items: [BI.extend({
                type: "bi.vertical",
                scrolly: false,
                ref: function () {
                    self.container = this;
                }
            }, o.el)],
            element: this
        };
    },

    mounted: function () {
        var self = this, o = this.options;
        this._populate();
        this.element.scroll(function (e) {
            o.scrollTop = self.element.scrollTop();
            self._calculateBlocksToRender();
        });
        BI.ResizeDetector.addResizeListener(this, function () {
            self._calculateBlocksToRender();
        });
    },

    _renderMoreIf: function () {
        var self = this, o = this.options;
        var height = this.element.height();
        var minContentHeight = o.scrollTop + height + o.overscanHeight;
        var index = (this.cache[this.renderedIndex] && (this.cache[this.renderedIndex].index + o.blockSize)) || 0,
            cnt = this.renderedIndex + 1;
        var lastHeight;
        var getElementHeight = function () {
            return self.container.element.height();
        };
        while ((lastHeight = getElementHeight()) < minContentHeight && index < o.items.length) {
            var items = o.items.slice(index, index + o.blockSize);
            this.container.addItems(items);
            var addedHeight = getElementHeight() - lastHeight;
            this.cache[cnt] = {
                index: index,
                scrollTop: lastHeight,
                height: addedHeight
            };
            this.renderedIndex = cnt;
            cnt++;
            index += o.blockSize;
        }
    },

    _calculateBlocksToRender: function () {
        var o = this.options;
        this._renderMoreIf();
    },

    _populate: function (items) {
        var o = this.options;
        if (items && this.options.items !== items) {
            this.options.items = items;
        }
        this._calculateBlocksToRender();
        this.element.scrollTop(o.scrollTop);
    },

    restore: function () {
        this.renderedIndex = -1;
        this.container.empty();
        this.cache = {};
    },

    populate: function (items) {
        if (items && this.options.items !== items) {
            this.restore();
        }
        this._populate(items);
    },

    destroyed: function () {
        this.restore();
    }
});
BI.shortcut("bi.list_view", BI.ListView);

/**
 * 表示当前对象
 *
 * Created by GUY on 2017/5/22.
 * @class BI.VirtualList
 * @extends BI.Widget
 */
BI.VirtualList = BI.inherit(BI.Widget, {
    props: function () {
        return {
            baseCls: "bi-virtual-list",
            overscanHeight: 100,
            blockSize: 10,
            scrollTop: 0,
            items: []
        };
    },

    init: function () {
        var self = this;
        this.renderedIndex = -1;
        this.cache = {};
    },

    render: function () {
        var self = this, o = this.options;
        return {
            type: "bi.vertical",
            items: [{
                type: "bi.layout",
                ref: function () {
                    self.topBlank = this;
                }
            }, {
                type: "bi.vertical",
                scrolly: false,
                ref: function () {
                    self.container = this;
                }
            }, {
                type: "bi.layout",
                ref: function () {
                    self.bottomBlank = this;
                }
            }],
            element: this
        };
    },

    mounted: function () {
        var self = this, o = this.options;
        this._populate();
        this.element.scroll(function (e) {
            o.scrollTop = self.element.scrollTop();
            self._calculateBlocksToRender();
        });
        BI.ResizeDetector.addResizeListener(this, function () {
            self._calculateBlocksToRender();
        });
    },

    _renderMoreIf: function () {
        var self = this, o = this.options;
        var height = this.element.height();
        var minContentHeight = o.scrollTop + height + o.overscanHeight;
        var index = (this.cache[this.renderedIndex] && (this.cache[this.renderedIndex].index + o.blockSize)) || 0,
            cnt = this.renderedIndex + 1;
        var lastHeight;
        var getElementHeight = function () {
            return self.container.element.height() + self.topBlank.element.height() + self.bottomBlank.element.height();
        };
        while ((lastHeight = getElementHeight()) < minContentHeight && index < o.items.length) {
            var items = o.items.slice(index, index + o.blockSize);
            this.container.addItems(items);
            var addedHeight = getElementHeight() - lastHeight;
            this.cache[cnt] = {
                index: index,
                scrollTop: lastHeight,
                height: addedHeight
            };
            this.tree.set(cnt, addedHeight);
            this.renderedIndex = cnt;
            cnt++;
            index += o.blockSize;
        }
    },

    _calculateBlocksToRender: function () {
        var o = this.options;
        this._renderMoreIf();
        var height = this.element.height();
        var minContentHeightFrom = o.scrollTop - o.overscanHeight;
        var minContentHeightTo = o.scrollTop + height + o.overscanHeight;
        var start = this.tree.greatestLowerBound(minContentHeightFrom);
        var end = this.tree.leastUpperBound(minContentHeightTo);
        var needDestroyed = [];
        for (var i = 0; i < start; i++) {
            var index = this.cache[i].index;
            if (!this.cache[i].destroyed) {
                for (var j = index; j < index + o.blockSize && j < o.items.length; j++) {
                    needDestroyed.push(this.container._children[j]);
                    this.container._children[j] = null;
                }
                this.cache[i].destroyed = true;
            }
        }
        for (var i = end + 1; i <= this.renderedIndex; i++) {
            var index = this.cache[i].index;
            if (!this.cache[i].destroyed) {
                for (var j = index; j < index + o.blockSize && j < o.items.length; j++) {
                    needDestroyed.push(this.container._children[j]);
                    this.container._children[j] = null;
                }
                this.cache[i].destroyed = true;
            }
        }
        var firstFragment = document.createDocumentFragment(), lastFragment = document.createDocumentFragment();
        var currentFragment = firstFragment;
        for (var i = (start < 0 ? 0 : start); i <= end && i <= this.renderedIndex; i++) {
            var index = this.cache[i].index;
            if (!this.cache[i].destroyed) {
                currentFragment = lastFragment;
            }
            if (this.cache[i].destroyed === true) {
                for (var j = index; j < index + o.blockSize && j < o.items.length; j++) {
                    var w = this.container._addElement(j, BI.extend({root: true}, BI.stripEL(o.items[j])));
                    currentFragment.appendChild(w.element[0]);
                }
                this.cache[i].destroyed = false;
            }
        }
        this.container.element.prepend(firstFragment);
        this.container.element.append(lastFragment);
        this.topBlank.setHeight(this.cache[start < 0 ? 0 : start].scrollTop);
        var lastCache = this.cache[Math.min(end, this.renderedIndex)];
        this.bottomBlank.setHeight(this.tree.sumTo(this.renderedIndex) - lastCache.scrollTop - lastCache.height);
        BI.each(needDestroyed, function (i, child) {
            child && child._destroy();
        });
    },

    _populate: function (items) {
        var o = this.options;
        if (items && this.options.items !== items) {
            this.options.items = items;
        }
        this.tree = BI.PrefixIntervalTree.empty(Math.ceil(o.items.length / o.blockSize));
        this._calculateBlocksToRender();
        this.element.scrollTop(o.scrollTop);
    },

    _clearChildren: function () {
        BI.each(this.container._children, function (i, cell) {
            cell && cell.el._destroy();
        });
        this.container._children = {};
        this.container.attr("items", []);
    },

    restore: function () {
        this.renderedIndex = -1;
        this._clearChildren();
        this.cache = {};
        this.options.scrollTop = 0;
    },

    populate: function (items) {
        if (items && this.options.items !== items) {
            this.restore();
        }
        this._populate();
    },

    destroyed: function () {
        this.restore();
    }
});
BI.shortcut("bi.virtual_list", BI.VirtualList);

/**
 * 分页控件
 *
 * Created by GUY on 2015/8/31.
 * @class BI.Pager
 * @extends BI.Widget
 */
BI.Pager = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.Pager.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-pager",
            behaviors: {},
            layouts: [{
                type: "bi.horizontal",
                hgap: 10,
                vgap: 0
            }],

            dynamicShow: true, // 是否动态显示上一页、下一页、首页、尾页， 若为false，则指对其设置使能状态
            // dynamicShow为false时以下两个有用
            dynamicShowFirstLast: false, // 是否动态显示首页、尾页
            dynamicShowPrevNext: false, // 是否动态显示上一页、下一页
            pages: false, // 总页数
            curr: function () {
                return 1;
            }, // 初始化当前页
            groups: 0, // 连续显示分页数
            jump: BI.emptyFn, // 分页的回调函数

            first: false, // 是否显示首页
            last: false, // 是否显示尾页
            prev: "上一页",
            next: "下一页",

            firstPage: 1,
            lastPage: function () { // 在万不得已时才会调用这个函数获取最后一页的页码,  主要作用于setValue方法
                return 1;
            },
            hasPrev: BI.emptyFn, // pages不可用时有效
            hasNext: BI.emptyFn  // pages不可用时有效
        });
    },
    _init: function () {
        BI.Pager.superclass._init.apply(this, arguments);
        var self = this;
        this.currPage = BI.result(this.options, "curr");
        // 翻页太灵敏
        // this._lock = false;
        // this._debouce = BI.debounce(function () {
        //     self._lock = false;
        // }, 300);
        this._populate();
    },

    _populate: function () {
        var self = this, o = this.options, view = [], dict = {};
        this.empty();
        var pages = BI.result(o, "pages");
        var curr = BI.result(this, "currPage");
        var groups = BI.result(o, "groups");
        var first = BI.result(o, "first");
        var last = BI.result(o, "last");
        var prev = BI.result(o, "prev");
        var next = BI.result(o, "next");

        if (pages === false) {
            groups = 0;
            first = false;
            last = false;
        } else {
            groups > pages && (groups = pages);
        }

        // 计算当前组
        dict.index = Math.ceil((curr + ((groups > 1 && groups !== pages) ? 1 : 0)) / (groups === 0 ? 1 : groups));

        // 当前页非首页，则输出上一页
        if (((!o.dynamicShow && !o.dynamicShowPrevNext) || curr > 1) && prev !== false) {
            if (BI.isKey(prev)) {
                view.push({
                    text: prev,
                    value: "prev",
                    disabled: pages === false ? o.hasPrev(curr) === false : !(curr > 1 && prev !== false)
                });
            } else {
                view.push(BI.extend({
                    disabled: pages === false ? o.hasPrev(curr) === false : !(curr > 1 && prev !== false)
                }, prev));
            }
        }

        // 当前组非首组，则输出首页
        if (((!o.dynamicShow && !o.dynamicShowFirstLast) || (dict.index > 1 && groups !== 0)) && first) {
            view.push({
                text: first,
                value: "first",
                disabled: !(dict.index > 1 && groups !== 0)
            });
            if (dict.index > 1 && groups !== 0) {
                view.push({
                    type: "bi.label",
                    cls: "page-ellipsis",
                    text: "\u2026"
                });
            }
        }

        // 输出当前页组
        dict.poor = Math.floor((groups - 1) / 2);
        dict.start = dict.index > 1 ? curr - dict.poor : 1;
        dict.end = dict.index > 1 ? (function () {
            var max = curr + (groups - dict.poor - 1);
            return max > pages ? pages : max;
        }()) : groups;
        if (dict.end - dict.start < groups - 1) { // 最后一组状态
            dict.start = dict.end - groups + 1;
        }
        var s = dict.start, e = dict.end;
        if (first && last && (dict.index > 1 && groups !== 0) && (pages > groups && dict.end < pages && groups !== 0)) {
            s++;
            e--;
        }
        for (; s <= e; s++) {
            if (s === curr) {
                view.push({
                    text: s,
                    value: s,
                    selected: true
                });
            } else {
                view.push({
                    text: s,
                    value: s
                });
            }
        }

        // 总页数大于连续分页数，且当前组最大页小于总页，输出尾页
        if (((!o.dynamicShow && !o.dynamicShowFirstLast) || (pages > groups && dict.end < pages && groups !== 0)) && last) {
            if (pages > groups && dict.end < pages && groups !== 0) {
                view.push({
                    type: "bi.label",
                    cls: "page-ellipsis",
                    text: "\u2026"
                });
            }
            view.push({
                text: last,
                value: "last",
                disabled: !(pages > groups && dict.end < pages && groups !== 0)
            });
        }

        // 当前页不为尾页时，输出下一页
        dict.flow = !prev && groups === 0;
        if (((!o.dynamicShow && !o.dynamicShowPrevNext) && next) || (curr !== pages && next || dict.flow)) {
            view.push((function () {
                if (BI.isKey(next)) {
                    if (pages === false) {
                        return {text: next, value: "next", disabled: o.hasNext(curr) === false};
                    }
                    return (dict.flow && curr === pages)
                        ?
                        {text: next, value: "next", disabled: true}
                        :
                        {text: next, value: "next", disabled: !(curr !== pages && next || dict.flow)};
                }
                return BI.extend({
                    disabled: pages === false ? o.hasNext(curr) === false : !(curr !== pages && next || dict.flow)
                }, next);
                
            }()));
        }

        this.button_group = BI.createWidget({
            type: "bi.button_group",
            element: this,
            items: BI.createItems(view, {
                cls: "bi-list-item-select",
                height: 23,
                hgap: 10
            }),
            behaviors: o.behaviors,
            layouts: o.layouts
        });
        this.button_group.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
            // if (self._lock === true) {
            //     return;
            // }
            // self._lock = true;
            // self._debouce();
            if (type === BI.Events.CLICK) {
                var v = self.button_group.getValue()[0];
                switch (v) {
                    case "first":
                        self.currPage = 1;
                        break;
                    case "last":
                        self.currPage = pages;
                        break;
                    case "prev":
                        self.currPage--;
                        break;
                    case "next":
                        self.currPage++;
                        break;
                    default:
                        self.currPage = v;
                        break;
                }
                o.jump.apply(self, [{
                    pages: pages,
                    curr: self.currPage
                }]);
                self._populate();
                self.fireEvent(BI.Pager.EVENT_CHANGE, obj);
            }
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
        });
        this.fireEvent(BI.Pager.EVENT_AFTER_POPULATE);
    },

    getCurrentPage: function () {
        return this.currPage;
    },

    setAllPages: function (pages) {
        this.options.pages = pages;
    },

    hasPrev: function (v) {
        v || (v = 1);
        var o = this.options;
        var pages = this.options.pages;
        return pages === false ? o.hasPrev(v) : v > 1;
    },

    hasNext: function (v) {
        v || (v = 1);
        var o = this.options;
        var pages = this.options.pages;
        return pages === false ? o.hasNext(v) : v < pages;
    },

    setValue: function (v) {
        var o = this.options;
        v = v | 0;
        v = v < 1 ? 1 : v;
        if (o.pages === false) {
            var lastPage = BI.result(o, "lastPage"), firstPage = 1;
            this.currPage = v > lastPage ? lastPage : ((firstPage = BI.result(o, "firstPage")), (v < firstPage ? firstPage : v));
        } else {
            v = v > o.pages ? o.pages : v;
            this.currPage = v;
        }
        this._populate();
    },

    getValue: function () {
        var val = this.button_group.getValue()[0];
        switch (val) {
            case "prev":
                return -1;
            case "next":
                return 1;
            case "first":
                return BI.MIN;
            case "last":
                return BI.MAX;
            default :
                return val;
        }
    },

    attr: function (key, value) {
        BI.Pager.superclass.attr.apply(this, arguments);
        if (key === "curr") {
            this.currPage = BI.result(this.options, "curr");
        }
    },

    populate: function () {
        this._populate();
    }
});
BI.Pager.EVENT_CHANGE = "EVENT_CHANGE";
BI.Pager.EVENT_AFTER_POPULATE = "EVENT_AFTER_POPULATE";
BI.shortcut("bi.pager", BI.Pager);/**
 * 超链接
 *
 * Created by GUY on 2015/9/9.
 * @class BI.A
 * @extends BI.Text
 * @abstract
 */
BI.A = BI.inherit(BI.Text, {
    _defaultConfig: function () {
        var conf = BI.A.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-a display-block",
            href: "",
            target: "_blank",
            el: null,
            tagName: "a"
        });
    },
    _init: function () {
        var o = this.options;
        BI.A.superclass._init.apply(this, arguments);
        this.element.attr({href: o.href, target: o.target});
        if (o.el) {
            BI.createWidget(o.el, {
                element: this
            });
        }
    }
});

BI.shortcut("bi.a", BI.A);/**
 * guy
 * 加载条
 * @type {*|void|Object}
 */
BI.LoadingBar = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.LoadingBar.superclass._defaultConfig.apply(this, arguments);
        return BI.extend( conf, {
            baseCls: (conf.baseCls || "") + " bi-loading-bar bi-tips",
            height: 30,
            handler: BI.emptyFn
        });
    },
    _init: function () {
        BI.LoadingBar.superclass._init.apply(this, arguments);
        var self = this;
        this.loaded = BI.createWidget({
            type: "bi.text_button",
            cls: "loading-text bi-list-item-simple",
            text: BI.i18nText("BI-Load_More"),
            width: 120,
            handler: this.options.handler
        });
        this.loaded.on(BI.Controller.EVENT_CHANGE, function (type) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
        });

        this.loading = BI.createWidget({
            type: "bi.layout",
            width: this.options.height,
            height: this.options.height,
            cls: "loading-background cursor-default"
        });
        var loaded = BI.createWidget({
            type: "bi.center_adapt",
            items: [this.loaded]
        });
        var loading = BI.createWidget({
            type: "bi.center_adapt",
            items: [this.loading]
        });
        this.cardLayout = BI.createWidget({
            type: "bi.card",
            element: this,
            items: [{
                el: loaded,
                cardName: "loaded"
            }, {
                el: loading,
                cardName: "loading"
            }]
        });
        this.invisible();
    },

    _reset: function () {
        this.visible();
        this.loaded.setText(BI.i18nText("BI-Load_More"));
        this.loaded.enable();
    },

    setLoaded: function () {
        this._reset();
        this.cardLayout.showCardByName("loaded");
    },

    setEnd: function () {
        this.setLoaded();
        this.loaded.setText(BI.i18nText("BI-No_More_Data"));
        this.loaded.disable();
    },

    setLoading: function () {
        this._reset();
        this.cardLayout.showCardByName("loading");
    }
});

BI.shortcut("bi.loading_bar", BI.LoadingBar);/**
 * @class BI.IconButton
 * @extends BI.BasicButton
 * 图标的button
 */
BI.IconButton = BI.inherit(BI.BasicButton, {
    _defaultConfig: function () {
        var conf = BI.IconButton.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-icon-button horizon-center",
            iconWidth: null,
            iconHeight: null
        });
    },

    _init: function () {
        BI.IconButton.superclass._init.apply(this, arguments);
        var o = this.options;
        this.element.css({
            textAlign: "center"
        });
        this.icon = BI.createWidget({
            type: "bi.icon",
            width: o.iconWidth,
            height: o.iconHeight
        });
        if (BI.isNumber(o.height) && o.height > 0 && BI.isNull(o.iconWidth) && BI.isNull(o.iconHeight)) {
            this.element.css("lineHeight", o.height + "px");
            BI.createWidget({
                type: "bi.default",
                element: this,
                items: [this.icon]
            });
        } else {
            this.element.css("lineHeight", "1");
            BI.createWidget({
                element: this,
                type: "bi.center_adapt",
                items: [this.icon]
            });
        }
    },

    doClick: function () {
        BI.IconButton.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.IconButton.EVENT_CHANGE, this);
        }
    }
});
BI.IconButton.EVENT_CHANGE = "IconButton.EVENT_CHANGE";
BI.shortcut("bi.icon_button", BI.IconButton);/**
 * 图片的button
 *
 * Created by GUY on 2016/1/27.
 * @class BI.ImageButton
 * @extends BI.BasicButton
 */
BI.ImageButton = BI.inherit(BI.BasicButton, {
    _defaultConfig: function () {
        var conf = BI.ImageButton.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-image-button",
            src: "",
            iconWidth: "100%",
            iconHeight: "100%"
        });
    },

    _init: function () {
        BI.ImageButton.superclass._init.apply(this, arguments);
        var o = this.options;
        this.image = BI.createWidget({
            type: "bi.img",
            width: o.iconWidth,
            height: o.iconHeight,
            src: o.src
        });
        if (BI.isNumber(o.iconWidth) || BI.isNumber(o.iconHeight)) {
            BI.createWidget({
                type: "bi.center_adapt",
                element: this,
                items: [this.image]
            });
        } else {
            BI.createWidget({
                type: "bi.adaptive",
                element: this,
                items: [this.image],
                scrollable: false
            });
        }
    },

    setWidth: function (w) {
        BI.ImageButton.superclass.setWidth.apply(this, arguments);
        this.options.width = w;
    },

    setHeight: function (h) {
        BI.ImageButton.superclass.setHeight.apply(this, arguments);
        this.options.height = h;
    },

    setImageWidth: function (w) {
        this.image.setWidth(w);
    },

    setImageHeight: function (h) {
        this.image.setHeight(h);
    },

    getImageWidth: function () {
        return this.image.element.width();
    },

    getImageHeight: function () {
        return this.image.element.height();
    },

    setSrc: function (src) {
        this.options.src = src;
        this.image.setSrc(src);
    },

    getSrc: function () {
        return this.image.getSrc();
    },

    doClick: function () {
        BI.ImageButton.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.ImageButton.EVENT_CHANGE, this);
        }
    }
});
BI.ImageButton.EVENT_CHANGE = "ImageButton.EVENT_CHANGE";
BI.shortcut("bi.image_button", BI.ImageButton);(function ($) {

    /**
     * 文字类型的按钮
     * @class BI.Button
     * @extends BI.BasicButton
     *
     * @cfg {JSON} options 配置属性
     * @cfg {'common'/'success'/'warning'/'ignore'} [options.level='common'] 按钮类型，用不同颜色强调不同的场景
     */
    BI.Button = BI.inherit(BI.BasicButton, {

        _defaultConfig: function (props) {
            var conf = BI.Button.superclass._defaultConfig.apply(this, arguments);
            return BI.extend(conf, {
                baseCls: (conf.baseCls || "") + " bi-button",
                minWidth: (props.block === true || props.clear === true) ? 0 : 80,
                height: 24,
                shadow: props.clear !== true,
                isShadowShowingOnSelected: true,
                readonly: true,
                iconCls: "",
                level: "common",
                block: false, // 是否块状显示，即不显示边框，没有最小宽度的限制
                clear: false, // 是否去掉边框和背景
                ghost: false, // 是否幽灵显示, 即正常状态无背景
                textAlign: "center",
                whiteSpace: "nowrap",
                forceCenter: false,
                textWidth: null,
                textHeight: null,
                hgap: props.clear ? 0 : 10,
                vgap: 0,
                tgap: 0,
                bgap: 0,
                lgap: 0,
                rgap: 0
            });
        },

        _init: function () {
            BI.Button.superclass._init.apply(this, arguments);
            var o = this.options, self = this;
            if (BI.isNumber(o.height) && !o.clear && !o.block) {
                this.element.css({height: o.height + "px", lineHeight: (o.height - 2) + "px"});
            } else if (o.clear || o.block) {
                this.element.css({lineHeight: o.height + "px"});
            } else {
                this.element.css({lineHeight: (o.height - 2) + "px"});
            }
            if (BI.isKey(o.iconCls)) {
                this.icon = BI.createWidget({
                    type: "bi.icon",
                    width: 18,
                    height: o.height - 2
                });
                this.text = BI.createWidget({
                    type: "bi.label",
                    text: o.text,
                    value: o.value,
                    height: o.height - 2
                });
                BI.createWidget({
                    type: "bi.horizontal_auto",
                    cls: o.iconCls,
                    element: this,
                    hgap: o.hgap,
                    vgap: o.vgap,
                    tgap: o.tgap,
                    bgap: o.bgap,
                    lgap: o.lgap,
                    rgap: o.rgap,
                    items: [{
                        type: "bi.horizontal",
                        items: [this.icon, this.text]
                    }]
                });
            } else {
                this.text = BI.createWidget({
                    type: "bi.label",
                    textAlign: o.textAlign,
                    whiteSpace: o.whiteSpace,
                    forceCenter: o.forceCenter,
                    textWidth: o.textWidth,
                    textHeight: o.textHeight,
                    hgap: o.hgap,
                    vgap: o.vgap,
                    tgap: o.tgap,
                    bgap: o.bgap,
                    lgap: o.lgap,
                    rgap: o.rgap,
                    element: this,
                    text: o.text,
                    value: o.value
                });
            }
            if (o.block === true) {
                this.element.addClass("block");
            }
            if (o.clear === true) {
                this.element.addClass("clear");
            }
            if (o.ghost === true) {
                this.element.addClass("ghost");
            }
            if (o.minWidth > 0) {
                this.element.css({"min-width": o.minWidth + "px"});
            }
        },

        doClick: function () {
            BI.Button.superclass.doClick.apply(this, arguments);
            if (this.isValid()) {
                this.fireEvent(BI.Button.EVENT_CHANGE, this);
            }
        },

        setText: function (text) {
            BI.Button.superclass.setText.apply(this, arguments);
            this.text.setText(text);
        },

        setValue: function (text) {
            BI.Button.superclass.setValue.apply(this, arguments);
            if (!this.isReadOnly()) {
                this.text.setValue(text);
            }
        },

        doRedMark: function () {
            this.text.doRedMark.apply(this.text, arguments);
        },

        unRedMark: function () {
            this.text.unRedMark.apply(this.text, arguments);
        },

        doHighLight: function () {
            this.text.doHighLight.apply(this.text, arguments);
        },

        unHighLight: function () {
            this.text.unHighLight.apply(this.text, arguments);
        },

        destroy: function () {
            BI.Button.superclass.destroy.apply(this, arguments);
        }
    });
    BI.shortcut("bi.button", BI.Button);
    BI.Button.EVENT_CHANGE = "EVENT_CHANGE";
})(jQuery);/**
 * guy
 * 可以点击的一行文字
 * @class BI.TextButton
 * @extends BI.BasicButton
 * 文字button
 */
BI.TextButton = BI.inherit(BI.BasicButton, {
    _defaultConfig: function () {
        var conf = BI.TextButton.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text-button",
            textAlign: "center",
            whiteSpace: "nowrap",
            forceCenter: false,
            textWidth: null,
            textHeight: null,
            hgap: 0,
            lgap: 0,
            rgap: 0,
            text: "",
            py: ""
        });
    },

    _init: function () {
        BI.TextButton.superclass._init.apply(this, arguments);
        var o = this.options;
        this.text = BI.createWidget({
            type: "bi.label",
            element: this,
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace,
            textWidth: o.textWidth,
            textHeight: o.textHeight,
            forceCenter: o.forceCenter,
            width: o.width,
            height: o.height,
            hgap: o.hgap,
            lgap: o.lgap,
            rgap: o.rgap,
            text: o.text,
            value: o.value,
            py: o.py,
            keyword: o.keyword
        });
    },

    doClick: function () {
        BI.TextButton.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.TextButton.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    },

    setText: function (text) {
        BI.TextButton.superclass.setText.apply(this, arguments);
        text = BI.isArray(text) ? text.join(",") : text;
        this.text.setText(text);
    },

    setStyle: function (style) {
        this.text.setStyle(style);
    },

    setValue: function (text) {
        BI.TextButton.superclass.setValue.apply(this, arguments);
        if (!this.isReadOnly()) {
            text = BI.isArray(text) ? text.join(",") : text;
            this.text.setValue(text);
        }
    }
});
BI.TextButton.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.text_button", BI.TextButton);/**
 * 带有一个占位
 *
 * Created by GUY on 2015/9/11.
 * @class BI.BlankIconIconTextItem
 * @extends BI.BasicButton
 */
BI.BlankIconIconTextItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.BlankIconIconTextItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-blank-icon-text-item",
            logic: {
                dynamic: false
            },
            iconCls1: "close-ha-font",
            iconCls2: "close-ha-font",
            blankWidth: 0,
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.BlankIconIconTextItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        var blank = BI.createWidget({
            type: "bi.layout",
            width: o.blankWidth,
            height: o.height
        });
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon1 = BI.createWidget({
            type: "bi.icon_button",
            cls: o.iconCls1,
            forceNotSelected: true,
            width: o.height,
            height: o.height
        });
        this.icon2 = BI.createWidget({
            type: "bi.icon_button",
            cls: o.iconCls2,
            forceNotSelected: true,
            width: o.height,
            height: o.height
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", blank, this.icon1, this.icon2, this.text)
        }))));
    },

    doClick: function () {
        BI.BlankIconIconTextItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.BlankIconIconTextItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    setSelected: function (b) {
        BI.BlankIconIconTextItem.superclass.setSelected.apply(this, arguments);
        this.icon1.setSelected(b);
        this.icon2.setSelected(b);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    }
});
BI.BlankIconIconTextItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.blank_icon_icon_text_item", BI.BlankIconIconTextItem);/**
 * guy
 * 一个占位符和两个icon和一行数 组成的一行listitem
 *
 * Created by GUY on 2015/9/15.
 * @class BI.BlankIconTextIconItem
 * @extends BI.BasicButton
 */
BI.BlankIconTextIconItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.BlankIconTextIconItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-blank-icon-text-icon-item",
            logic: {
                dynamic: false
            },
            iconCls1: "close-ha-font",
            iconCls2: "close-ha-font",
            blankWidth: 0,
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.BlankIconTextIconItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });

        var icon1 = BI.createWidget({
            type: "bi.icon_label",
            cls: o.iconCls1,
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: {
                    type: "bi.icon_label",
                    cls: o.iconCls2,
                    width: o.height,
                    height: o.height,
                    iconWidth: o.iconWidth,
                    iconHeight: o.iconHeight
                },
                top: 0,
                bottom: 0,
                right: 0
            }]
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", {
                type: "bi.layout",
                width: o.blankWidth
            }, icon1, this.text, {
                type: "bi.layout",
                width: o.height
            })
        }))));
    },

    doClick: function () {
        BI.BlankIconTextIconItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.BlankIconTextIconItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    }
});
BI.BlankIconTextIconItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.blank_icon_text_icon_item", BI.BlankIconTextIconItem);/**
 * 带有一个占位
 *
 * Created by GUY on 2015/9/11.
 * @class BI.BlankIconTextItem
 * @extends BI.BasicButton
 */
BI.BlankIconTextItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.BlankIconTextItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-blank-icon-text-item",
            logic: {
                dynamic: false
            },
            cls: "close-ha-font",
            blankWidth: 0,
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.BlankIconTextItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        var blank = BI.createWidget({
            type: "bi.layout",
            width: o.blankWidth
        });
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon = BI.createWidget({
            type: "bi.icon_label",
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", blank, this.icon, this.text)
        }))));
    },

    doClick: function () {
        BI.BlankIconTextItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.BlankIconTextItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    }
});
BI.BlankIconTextItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.blank_icon_text_item", BI.BlankIconTextItem);/**
 * guy
 * 两个icon和一行数 组成的一行listitem
 *
 * Created by GUY on 2015/9/9.
 * @class BI.IconTextIconItem
 * @extends BI.BasicButton
 */
BI.IconTextIconItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.IconTextIconItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-icon-text-icon-item",
            logic: {
                dynamic: false
            },
            iconCls1: "close-ha-font",
            iconCls2: "close-ha-font",
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.IconTextIconItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });

        var icon1 = BI.createWidget({
            type: "bi.icon_label",
            cls: o.iconCls1,
            width: o.leftIconWrapperWidth,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });
        var blank = BI.createWidget({
            type: "bi.layout",
            width: o.height
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: {
                    type: "bi.icon_label",
                    cls: o.iconCls2,
                    width: o.rightIconWrapperWidth,
                    height: o.height,
                    iconWidth: o.iconWidth,
                    iconHeight: o.iconHeight
                },
                top: 0,
                bottom: 0,
                right: 0
            }]
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", icon1, this.text, blank)
        }))));
    },

    doClick: function () {
        BI.IconTextIconItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.IconTextIconItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    }
});
BI.IconTextIconItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.icon_text_icon_item", BI.IconTextIconItem);/**
 * guy
 *
 * Created by GUY on 2015/9/9.
 * @class BI.IconTextItem
 * @extends BI.BasicButton
 */
BI.IconTextItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.IconTextItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-icon-text-item",
            direction: BI.Direction.Left,
            logic: {
                dynamic: false
            },
            iconWrapperWidth: null,
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.IconTextItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon = BI.createWidget({
            type: "bi.icon_label",
            width: o.iconWrapperWidth || o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(o.direction), BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection(o.direction, this.icon, this.text)
        }))));
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doClick: function () {
        BI.IconTextItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.IconTextItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    }
});
BI.IconTextItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.icon_text_item", BI.IconTextItem);/**
 *
 * 图标的button
 *
 * Created by GUY on 2015/9/9.
 * @class BI.TextIconItem
 * @extends BI.BasicButton
 */
BI.TextIconItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.TextIconItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text-icon-item",
            logic: {
                dynamic: false
            },
            cls: "close-ha-font",
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.TextIconItem.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon = BI.createWidget({
            type: "bi.icon_label",
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", this.text, this.icon)
        }))));
    },

    doClick: function () {
        BI.TextIconItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.TextIconItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    }
});
BI.TextIconItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.text_icon_item", BI.TextIconItem);/**
 * guy
 * 一个button和一行数 组成的一行listitem
 *
 * Created by GUY on 2015/9/9.
 * @class BI.TextItem
 * @extends BI.BasicButton
 */
BI.TextItem = BI.inherit(BI.BasicButton, {

    _defaultConfig: function () {
        var conf = BI.TextItem.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text-item",
            textAlign: "left",
            whiteSpace: "nowrap",
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.TextItem.superclass._init.apply(this, arguments);
        var o = this.options;
        this.text = BI.createWidget({
            type: "bi.label",
            element: this,
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace,
            textHeight: o.whiteSpace == "nowrap" ? o.height : o.textHeight,
            height: o.height,
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            py: o.py
        });
    },

    doClick: function () {
        BI.TextItem.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.TextItem.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    }
});
BI.TextItem.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.text_item", BI.TextItem);/**
 * guy
 * Created by GUY on 2015/9/9.
 * @class BI.IconTextIconNode
 * @extends BI.NodeButton
 */
BI.IconTextIconNode = BI.inherit(BI.NodeButton, {

    _defaultConfig: function () {
        var conf = BI.IconTextIconNode.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-icon-text-icon-node",
            logic: {
                dynamic: false
            },
            iconCls1: "close-ha-font",
            iconCls2: "close-ha-font",
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.IconTextIconNode.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });

        var icon1 = BI.createWidget({
            type: "bi.icon_label",
            cls: o.iconCls1,
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });
        var blank = BI.createWidget({
            type: "bi.layout",
            width: o.height,
            height: o.height
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: {
                    type: "bi.icon_label",
                    cls: o.iconCls2,
                    width: o.height,
                    iconWidth: o.iconWidth,
                    iconHeight: o.iconHeight
                },
                top: 0,
                bottom: 0,
                right: 0
            }]
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", icon1, this.text, blank)
        }))));
    },

    doClick: function () {
        BI.IconTextIconNode.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.IconTextIconNode.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    }
});
BI.IconTextIconNode.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.icon_text_icon_node", BI.IconTextIconNode);/**
 * guy
 * Created by GUY on 2015/9/9.
 * @class BI.IconTextNode
 * @extends BI.NodeButton
 */
BI.IconTextNode = BI.inherit(BI.NodeButton, {

    _defaultConfig: function () {
        var conf = BI.IconTextNode.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-icon-text-node",
            logic: {
                dynamic: false
            },
            cls: "close-ha-font",
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.IconTextNode.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon = BI.createWidget({
            type: "bi.icon_label",
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", this.icon, this.text)
        }))));
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doClick: function () {
        BI.IconTextNode.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.IconTextNode.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    }
});
BI.IconTextNode.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.icon_text_node", BI.IconTextNode);/**
 * Created by GUY on 2015/9/9.
 * @class BI.TextIconNode
 * @extends BI.NodeButton
 */
BI.TextIconNode = BI.inherit(BI.NodeButton, {

    _defaultConfig: function () {
        var conf = BI.TextIconNode.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text-icon-node",
            logic: {
                dynamic: false
            },
            cls: "close-ha-font",
            iconHeight: null,
            iconWidth: null,
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.TextIconNode.superclass._init.apply(this, arguments);
        var o = this.options, c = this._const;
        this.text = BI.createWidget({
            type: "bi.label",
            cls: "list-item-text",
            textAlign: "left",
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            height: o.height
        });
        this.icon = BI.createWidget({
            type: "bi.icon_label",
            width: o.height,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight
        });

        BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("horizontal", BI.extend(o.logic, {
            items: BI.LogicFactory.createLogicItemsByDirection("left", this.text, this.icon)
        }))));
    },

    doClick: function () {
        BI.TextIconNode.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.TextIconNode.EVENT_CHANGE, this.getValue(), this);
        }
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    }
});
BI.TextIconNode.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.text_icon_node", BI.TextIconNode);/**
 * guy
 *
 * Created by GUY on 2015/9/9.
 * @class BI.TextNode
 * @extends BI.NodeButton
 */
BI.TextNode = BI.inherit(BI.NodeButton, {

    _defaultConfig: function () {
        var conf = BI.TextNode.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-text-node",
            textAlign: "left",
            whiteSpace: "nowrap",
            textHgap: 0,
            textVgap: 0,
            textLgap: 0,
            textRgap: 0
        });
    },
    _init: function () {
        BI.TextNode.superclass._init.apply(this, arguments);
        var o = this.options;
        this.text = BI.createWidget({
            type: "bi.label",
            element: this,
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace,
            textHeight: o.whiteSpace == "nowrap" ? o.height : o.textHeight,
            height: o.height,
            hgap: o.textHgap,
            vgap: o.textVgap,
            lgap: o.textLgap,
            rgap: o.textRgap,
            text: o.text,
            value: o.value,
            keyword: o.keyword,
            py: o.py
        });
    },

    doClick: function () {
        BI.TextNode.superclass.doClick.apply(this, arguments);
        if (this.isValid()) {
            this.fireEvent(BI.TextNode.EVENT_CHANGE, this.getValue(), this);
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    setValue: function () {
        if (!this.isReadOnly()) {
            this.text.setValue.apply(this.text, arguments);
        }
    },

    getValue: function () {
        return this.text.getValue();
    },

    setText: function () {
        this.text.setText.apply(this.text, arguments);
    },

    getText: function () {
        return this.text.getText();
    }
});
BI.TextNode.EVENT_CHANGE = "EVENT_CHANGE";
BI.shortcut("bi.text_node", BI.TextNode);/**
 *
 * Created by GUY on 2016/1/15.
 * @class BI.CodeEditor
 * @extends BI.Single
 */
BI.CodeEditor = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        return $.extend(BI.CodeEditor.superclass._defaultConfig.apply(), {
            baseCls: "bi-code-editor",
            value: "",
            watermark: "",
            lineHeight: 2,
            readOnly: false,
            lineNumbers: false,
            paramMatch: true, // 用来判断是否需要在代码中匹配参数，默认为true, R语言是不需要匹配参数
            // 参数显示值构造函数
            paramFormatter: function (v) {
                return v;
            }
        });
    },
    _init: function () {
        BI.CodeEditor.superclass._init.apply(this, arguments);
        var o = this.options, self = this;
        var conf = {
            textWrapping: true,
            lineWrapping: true,
            lineNumbers: o.lineNumbers,
            readOnly: o.readOnly,
            // 解决插入字段由括号或其他特殊字符包围时分裂的bug
            specialChars: /[\u0000-\u001f\u007f\u00ad\u200c-\u200f\u2028\u2029\ufeff]/
        };
        o.readOnly && (conf.cursorBlinkRate = -1);
        this.editor = CodeMirror(this.element[0], conf);
        o.lineHeight === 1 ? this.element.addClass("codemirror-low-line-height") : this.element.addClass("codemirror-high-line-height");
        this.editor.on("change", function (cm, change) {
            BI.nextTick(function () {
                self.fireEvent(BI.CodeEditor.EVENT_CHANGE);
            });
        });

        this.editor.on("focus", function () {
            self.watermark.setVisible(false);
            self.fireEvent(BI.CodeEditor.EVENT_FOCUS);
        });

        this.editor.on("blur", function () {
            self.watermark.setVisible(BI.isEmptyString(self.getValue()));
            self.fireEvent(BI.CodeEditor.EVENT_BLUR);
        });

        // this.editor.on("mousedown", function (cm, e) {
        //     //IE下mousedown之后会触发blur,所以nextTick后再做focus
        //     BI.nextTick(function () {
        //         self.fireEvent(BI.CodeEditor.EVENT_FOCUS);
        //     });
        //     //e.stopPropagation();
        // });

        // this.editor.on("blur", function () {
        //     self.editor.execCommand("goLineEnd");
        // });

        // 水印
        this.watermark = BI.createWidget({
            type: "bi.label",
            text: o.watermark,
            cls: "bi-water-mark",
            whiteSpace: "nowrap",
            textAlign: "left"
        });
        this.watermark.element.bind(
            "mousedown", function (e) {
                self.insertString("");
                self.editor.focus();
                e.stopEvent();
            }
        );
        this.watermark.element.bind("click", function (e) {
            self.editor.focus();
            e.stopEvent();
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.watermark,
                top: 0,
                left: o.lineNumbers ? 30 + 5 : 5
            }]
        });
    },

    mounted: function () {
        var o = this.options;
        if (BI.isNumber(o.value) || BI.isString(o.value)) {
            this.setValue(o.value);
        }

        if (BI.isNotNull(o.style)) {
            this.setStyle(o.style);
        }
    },

    _setEnable: function (b) {
        BI.CodeEditor.superclass._setEnable.apply(this, arguments);
        this.editor.setOption("readOnly", b === true ? false : "nocursor");
    },

    _checkWaterMark: function () {
        var o = this.options;
        if (BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
            this.watermark && this.watermark.visible();
        } else {
            this.watermark && this.watermark.invisible();
        }
    },

    insertParam: function (param) {
        var value = param;
        param = this.options.paramFormatter(param);
        var from = this.editor.getCursor();
        // 解决插入字段由括号或其他特殊字符包围时分裂的bug,在两端以不可见字符包裹一下
        this.editor.replaceSelection("\u200b" + param + "\u200b");
        var to = this.editor.getCursor();
        var className = "param";
        if (BI.isNotNull(param.match(/^<!.*!>$/))) {
            className = "error-param";
        }
        var options = {className: className, atomic: true, replacedWith: $("<span class='" + className + " start end' />").text(param)[0]};
        options.value = value;
        this.editor.markText(from, to, options);
        this.editor.replaceSelection(" ");
        this.editor.focus();
    },

    insertString: function (str) {
        this.editor.replaceSelection(str);
        this.editor.focus();
    },

    getValue: function () {
        return this.editor.getValue("\n", function (line) {
            var rawText = line.text, value = line.text, num = 0;
            value.text = rawText;
            // 根据插入位置不同，line.markedSpan可能是乱序的
            _.forEach(_.sortBy(line.markedSpans, "from"), function (i, ms) {
                switch (i.marker.className) {
                    case "param":
                    case "error-param":
                        var fieldNameLength = i.to - i.from;
                        value = value.substr(0, i.from + num) + "$\{" + i.marker.value + "\}" + value.substr(i.to + num, value.length);
                        // 加上${}的偏移
                        num += 3;
                        // 加上实际值和显示值的长度差的偏移
                        num += (i.marker.value.length - fieldNameLength);
                        break;
                }
            });
            return value;
        });
    },

    _analyzeContent: function (v) {
        var regx = /\$[\{][^\}]*[\}]|[^\$\{]*[^\$\{]|\$[^\{]*[^\$\{]/g;
        return v.match(regx);
    },

    setValue: function (v) {
        var self = this, o = this.options, result;
        this.refresh();
        self.editor.setValue("");
        if(o.paramMatch) {
            result = this._analyzeContent(v || "");
            BI.each(result, function (i, item) {
                var fieldRegx = /\$[\{][^\}]*[\}]/;
                var str = item.match(fieldRegx);
                if (BI.isNotEmptyArray(str)) {
                    self.insertParam(str[0].substring(2, item.length - 1));
                } else {
                    self.insertString(item);
                }
            });
        }else {
            self.editor.setValue(v);
        }
        this._checkWaterMark();
    },

    focus: function () {
        this.editor.focus();
    },

    blur: function () {
        this.editor.getInputField().blur();
    },

    setStyle: function (style) {
        this.style = style;
        this.element.css(style);
    },

    getStyle: function () {
        return this.style;
    },

    refresh: function () {
        var self = this;
        BI.nextTick(function () {
            self.editor.refresh();
        });
    }
});
BI.CodeEditor.EVENT_CHANGE = "EVENT_CHANGE";
BI.CodeEditor.EVENT_BLUR = "EVENT_BLUR";
BI.CodeEditor.EVENT_FOCUS = "EVENT_FOCUS";
BI.shortcut("bi.code_editor", BI.CodeEditor);
/**
 * Created by GUY on 2015/4/15.
 * @class BI.Editor
 * @extends BI.Single
 */
BI.Editor = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Editor.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: "bi-editor",
            hgap: 4,
            vgap: 2,
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0,
            // title,warningTitle这两个属性没用
            tipType: "warning",
            inputType: "text",
            validationChecker: BI.emptyFn,
            quitChecker: BI.emptyFn,
            allowBlank: false,
            watermark: "",
            errorText: ""
        });
    },

    _init: function () {
        BI.Editor.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.editor = this.addWidget(BI.createWidget({
            type: "bi.input",
            element: "<input type='" + o.inputType + "'/>",
            root: true,
            value: o.value,
            watermark: o.watermark,
            validationChecker: o.validationChecker,
            quitChecker: o.quitChecker,
            allowBlank: o.allowBlank
        }));
        this.editor.element.css({
            width: "100%",
            height: "100%",
            border: "none",
            outline: "none",
            padding: "0",
            margin: "0"
        });
        if (BI.isKey(this.options.watermark)) {
            this.watermark = BI.createWidget({
                type: "bi.label",
                cls: "bi-water-mark",
                text: this.options.watermark,
                forceCenter: true,
                height: o.height - 2 * (o.vgap + o.tgap),
                whiteSpace: "nowrap",
                textAlign: "left"
            });
            this.watermark.element.bind({
                mousedown: function (e) {
                    if (self.isEnabled()) {
                        self.editor.isEditing() || self.editor.focus();
                    } else {
                        self.editor.isEditing() && self.editor.blur();
                    }
                    e.stopEvent();
                }
            });
            this.watermark.element.bind("click", function (e) {
                if (self.isEnabled()) {
                    self.editor.isEditing() || self.editor.focus();
                } else {
                    self.editor.isEditing() && self.editor.blur();
                }
                e.stopEvent();
            });
            this.watermark.element.css({
                position: "absolute",
                left: "3px",
                right: "3px",
                top: "0px",
                bottom: "0px"
            });
        }
        var items = [{
            el: {
                type: "bi.default",
                items: this.watermark ? [this.editor, this.watermark] : [this.editor]
            },
            left: o.hgap + o.lgap,
            right: o.hgap + o.rgap,
            top: o.vgap + o.tgap,
            bottom: o.vgap + o.bgap
        }];

        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: items
        });
        this.editor.on(BI.Controller.EVENT_CHANGE, function () {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
        });
        this.editor.on(BI.Input.EVENT_FOCUS, function () {
            self._checkError();
            self.element.addClass("bi-editor-focus");
            self.fireEvent(BI.Editor.EVENT_FOCUS, arguments);
        });
        this.editor.on(BI.Input.EVENT_BLUR, function () {
            self._setErrorVisible(false);
            self.element.removeClass("bi-editor-focus");
            self.fireEvent(BI.Editor.EVENT_BLUR, arguments);
        });
        this.editor.on(BI.Input.EVENT_CLICK, function () {
            self.fireEvent(BI.Editor.EVENT_CLICK, arguments);
        });
        this.editor.on(BI.Input.EVENT_CHANGE, function () {
            self.fireEvent(BI.Editor.EVENT_CHANGE, arguments);
        });
        this.editor.on(BI.Input.EVENT_KEY_DOWN, function (v) {
            self.fireEvent(BI.Editor.EVENT_KEY_DOWN, arguments);
        });
        this.editor.on(BI.Input.EVENT_QUICK_DOWN, function (v) {
            self.watermark && self.watermark.invisible();
        });

        this.editor.on(BI.Input.EVENT_VALID, function () {
            self._checkWaterMark();
            self._setErrorVisible(false);
            self.fireEvent(BI.Editor.EVENT_VALID, arguments);
        });
        this.editor.on(BI.Input.EVENT_ERROR, function () {
            self._checkWaterMark();
            self.fireEvent(BI.Editor.EVENT_ERROR, arguments);
            self._setErrorVisible(self.isEditing());
        });
        this.editor.on(BI.Input.EVENT_RESTRICT, function () {
            self._checkWaterMark();
            var tip = self._setErrorVisible(true);
            tip && tip.element.fadeOut(100, function () {
                tip.element.fadeIn(100);
            });
            self.fireEvent(BI.Editor.EVENT_RESTRICT, arguments);
        });
        this.editor.on(BI.Input.EVENT_EMPTY, function () {
            self._checkWaterMark();
            self.fireEvent(BI.Editor.EVENT_EMPTY, arguments);
        });
        this.editor.on(BI.Input.EVENT_ENTER, function () {
            self.fireEvent(BI.Editor.EVENT_ENTER, arguments);
        });
        this.editor.on(BI.Input.EVENT_SPACE, function () {
            self.fireEvent(BI.Editor.EVENT_SPACE, arguments);
        });
        this.editor.on(BI.Input.EVENT_BACKSPACE, function () {
            self.fireEvent(BI.Editor.EVENT_BACKSPACE, arguments);
        });
        this.editor.on(BI.Input.EVENT_REMOVE, function () {
            self.fireEvent(BI.Editor.EVENT_REMOVE, arguments);
        });
        this.editor.on(BI.Input.EVENT_START, function () {
            self.fireEvent(BI.Editor.EVENT_START, arguments);
        });
        this.editor.on(BI.Input.EVENT_PAUSE, function () {
            self.fireEvent(BI.Editor.EVENT_PAUSE, arguments);
        });
        this.editor.on(BI.Input.EVENT_STOP, function () {
            self.fireEvent(BI.Editor.EVENT_STOP, arguments);
        });
        this.editor.on(BI.Input.EVENT_CONFIRM, function () {
            self.fireEvent(BI.Editor.EVENT_CONFIRM, arguments);
        });
        this.element.click(function (e) {
            e.stopPropagation();
            return false;
        });
        if (BI.isKey(this.options.value) || BI.isEmptyString(this.options.value)) {
            this._checkError();
            this._checkWaterMark();
        } else {
            this._checkWaterMark();
        }
    },

    _checkToolTip: function () {
        var o = this.options;
        var errorText = o.errorText;
        if (BI.isFunction(errorText)) {
            errorText = errorText(this.editor.getValue());
        }
        if (BI.isKey(errorText)) {
            if (!this.isEnabled() || this.isValid() || (BI.Bubbles.has(this.getName()) && BI.Bubbles.get(this.getName()).isVisible())) {
                this.setTitle("");
            } else {
                this.setTitle(errorText);
            }
        }
    },

    _checkError: function () {
        this._setErrorVisible(this.isEnabled() && !this.isValid());
        this._checkToolTip();
    },

    _checkWaterMark: function () {
        var o = this.options;
        if (!this.disabledWaterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
            this.watermark && this.watermark.visible();
        } else {
            this.watermark && this.watermark.invisible();
        }
    },

    setErrorText: function (text) {
        this.options.errorText = text;
    },

    getErrorText: function () {
        return this.options.errorText;
    },

    _setErrorVisible: function (b) {
        var o = this.options;
        var errorText = o.errorText;
        if (BI.isFunction(errorText)) {
            errorText = errorText(this.editor.getValue());
        }
        if (!this.disabledError && BI.isKey(errorText)) {
            BI.Bubbles[b ? "show" : "hide"](this.getName(), errorText, this, {
                adjustYOffset: 2
            });
            this._checkToolTip();
            return BI.Bubbles.get(this.getName());
        }
    },

    disableError: function () {
        this.disabledError = true;
        this._checkError();
    },

    enableError: function () {
        this.disabledError = false;
        this._checkError();
    },

    disableWaterMark: function () {
        this.disabledWaterMark = true;
        this._checkWaterMark();
    },

    enableWaterMark: function () {
        this.disabledWaterMark = false;
        this._checkWaterMark();
    },

    focus: function () {
        this.element.addClass("text-editor-focus");
        this.editor.focus();
    },

    blur: function () {
        this.element.removeClass("text-editor-focus");
        this.editor.blur();
    },

    selectAll: function () {
        this.editor.selectAll();
    },

    onKeyDown: function (k) {
        this.editor.onKeyDown(k);
    },

    setValue: function (v) {
        BI.Editor.superclass.setValue.apply(this, arguments);
        this.editor.setValue(v);
        this._checkError();
        this._checkWaterMark();
    },

    getLastValidValue: function () {
        return this.editor.getLastValidValue();
    },

    resetLastValidValue: function () {
        this.editor.resetLastValidValue();
    },

    getValue: function () {
        if (!this.isValid()) {
            return BI.trim(this.editor.getLastValidValue());
        }
        return BI.trim(this.editor.getValue());
    },

    isEditing: function () {
        return this.editor.isEditing();
    },

    isValid: function () {
        return this.editor.isValid();
    },

    destroyed: function () {
        BI.Bubbles.remove(this.getName());
    }
});
BI.Editor.EVENT_CHANGE = "EVENT_CHANGE";
BI.Editor.EVENT_FOCUS = "EVENT_FOCUS";
BI.Editor.EVENT_BLUR = "EVENT_BLUR";
BI.Editor.EVENT_CLICK = "EVENT_CLICK";
BI.Editor.EVENT_KEY_DOWN = "EVENT_KEY_DOWN";
BI.Editor.EVENT_SPACE = "EVENT_SPACE";
BI.Editor.EVENT_BACKSPACE = "EVENT_BACKSPACE";

BI.Editor.EVENT_START = "EVENT_START";
BI.Editor.EVENT_PAUSE = "EVENT_PAUSE";
BI.Editor.EVENT_STOP = "EVENT_STOP";
BI.Editor.EVENT_CONFIRM = "EVENT_CONFIRM";
BI.Editor.EVENT_VALID = "EVENT_VALID";
BI.Editor.EVENT_ERROR = "EVENT_ERROR";
BI.Editor.EVENT_ENTER = "EVENT_ENTER";
BI.Editor.EVENT_RESTRICT = "EVENT_RESTRICT";
BI.Editor.EVENT_REMOVE = "EVENT_REMOVE";
BI.Editor.EVENT_EMPTY = "EVENT_EMPTY";

BI.shortcut("bi.editor", BI.Editor);/**
 * 多文件
 *
 * Created by GUY on 2016/4/13.
 * @class BI.MultifileEditor
 * @extends BI.Single
 * @abstract
 */
BI.MultifileEditor = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        var conf = BI.MultifileEditor.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-multifile-editor",
            multiple: false,
            maxSize: -1, // 1024 * 1024
            accept: "",
            url: ""
        });
    },

    _init: function () {
        var self = this, o = this.options;
        BI.MultifileEditor.superclass._init.apply(this, arguments);
        this.file = BI.createWidget({
            type: "bi.file",
            cls: "multifile-editor",
            width: "100%",
            height: "100%",
            name: o.name,
            url: o.url,
            multiple: o.multiple,
            accept: o.accept,
            maxSize: o.maxSize,
            title: o.title
        });
        this.file.on(BI.File.EVENT_CHANGE, function () {
            self.fireEvent(BI.MultifileEditor.EVENT_CHANGE, arguments);
        });
        this.file.on(BI.File.EVENT_UPLOADSTART, function () {
            self.fireEvent(BI.MultifileEditor.EVENT_UPLOADSTART, arguments);
        });
        this.file.on(BI.File.EVENT_ERROR, function () {
            self.fireEvent(BI.MultifileEditor.EVENT_ERROR, arguments);
        });
        this.file.on(BI.File.EVENT_PROGRESS, function () {
            self.fireEvent(BI.MultifileEditor.EVENT_PROGRESS, arguments);
        });
        this.file.on(BI.File.EVENT_UPLOADED, function () {
            self.fireEvent(BI.MultifileEditor.EVENT_UPLOADED, arguments);
        });

        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: {
                    type: "bi.adaptive",
                    scrollable: false,
                    items: [this.file]
                },
                top: 0,
                right: 0,
                left: 0,
                bottom: 0
            }]
        });
    },

    select: function () {
        this.file.select();
    },

    getValue: function () {
        return this.file.getValue();
    },

    upload: function () {
        this.file.upload();
    },

    reset: function () {
        this.file.reset();
    }
});
BI.MultifileEditor.EVENT_CHANGE = "MultifileEditor.EVENT_CHANGE";
BI.MultifileEditor.EVENT_UPLOADSTART = "MultifileEditor.EVENT_UPLOADSTART";
BI.MultifileEditor.EVENT_ERROR = "MultifileEditor.EVENT_ERROR";
BI.MultifileEditor.EVENT_PROGRESS = "MultifileEditor.EVENT_PROGRESS";
BI.MultifileEditor.EVENT_UPLOADED = "MultifileEditor.EVENT_UPLOADED";
BI.shortcut("bi.multifile_editor", BI.MultifileEditor);/**
 *
 * Created by GUY on 2016/1/18.
 * @class BI.TextAreaEditor
 * @extends BI.Single
 */
BI.TextAreaEditor = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        return $.extend(BI.TextAreaEditor.superclass._defaultConfig.apply(), {
            baseCls: "bi-textarea-editor",
            value: ""
        });
    },
    _init: function () {
        BI.TextAreaEditor.superclass._init.apply(this, arguments);
        var o = this.options, self = this;
        this.content = BI.createWidget({
            type: "bi.layout",
            tagName: "textarea",
            width: "100%",
            height: "100%",
            cls: "bi-textarea textarea-editor-content display-block"
        });
        this.content.element.css({resize: "none", whiteSpace: "normal"});
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: {
                    type: "bi.adaptive",
                    items: [this.content]
                },
                left: 0,
                right: 3,
                top: 0,
                bottom: 5
            }]
        });

        this.content.element.on("input propertychange", function (e) {
            self._checkWaterMark();
            self.fireEvent(BI.TextAreaEditor.EVENT_CHANGE);
        });

        this.content.element.focus(function () {
            if (self.isValid()) {
                self._focus();
                self.fireEvent(BI.TextAreaEditor.EVENT_FOCUS);
            }
            $(document).bind("mousedown." + self.getName(), function (e) {
                if (BI.DOM.isExist(self) && !self.element.__isMouseInBounds__(e)) {
                    $(document).unbind("mousedown." + self.getName());
                    self.content.element.blur();
                }
            });
        });
        this.content.element.blur(function () {
            if (self.isValid()) {
                self._blur();
                self.fireEvent(BI.TextAreaEditor.EVENT_BLUR);
            }
            $(document).unbind("mousedown." + self.getName());
        });
        if (BI.isKey(o.value)) {
            self.setValue(o.value);
        }
        if (BI.isNotNull(o.style)) {
            self.setStyle(o.style);
        }
        this._checkWaterMark();
    },

    _checkWaterMark: function () {
        var self = this, o = this.options;
        var val = this.getValue();
        if (BI.isNotEmptyString(val)) {
            this.watermark && this.watermark.destroy();
            this.watermark = null;
        } else {
            if (BI.isNotEmptyString(o.watermark)) {
                if (!this.watermark) {
                    this.watermark = BI.createWidget({
                        type: "bi.text_button",
                        cls: "bi-water-mark",
                        textAlign: "left",
                        height: 30,
                        text: o.watermark,
                        invalid: o.invalid,
                        disabled: o.disabled
                    });
                    this.watermark.on(BI.TextButton.EVENT_CHANGE, function () {
                        self.focus();
                    });
                    BI.createWidget({
                        type: "bi.absolute",
                        element: this,
                        items: [{
                            el: this.watermark,
                            left: 0,
                            top: 0,
                            right: 0
                        }]
                    });
                } else {
                    this.watermark.setText(o.watermark);
                    this.watermark.setValid(!o.invalid);
                    this.watermark.setEnable(!o.disabled);
                }
            }
        }
    },

    _focus: function () {
        this.content.element.addClass("textarea-editor-focus");
        this._checkWaterMark();
    },

    _blur: function () {
        this.content.element.removeClass("textarea-editor-focus");
        this._checkWaterMark();
    },

    focus: function () {
        this._focus();
        this.content.element.focus();
    },

    blur: function () {
        this._blur();
        this.content.element.blur();
    },

    getValue: function () {
        return this.content.element.val();
    },

    setValue: function (value) {
        this.content.element.val(value);
        this._checkWaterMark();
    },

    setStyle: function (style) {
        this.style = style;
        this.element.css(style);
        this.content.element.css(BI.extend({}, style, {
            color: style.color || BI.DOM.getContrastColor(BI.DOM.isRGBColor(style.backgroundColor) ? BI.DOM.rgb2hex(style.backgroundColor) : style.backgroundColor)
        }));
    },

    getStyle: function () {
        return this.style;
    },

    _setValid: function (b) {
        BI.TextAreaEditor.superclass._setValid.apply(this, arguments);
        // this.content.setValid(b);
        // this.watermark && this.watermark.setValid(b);
    }
});
BI.TextAreaEditor.EVENT_CHANGE = "EVENT_CHANGE";
BI.TextAreaEditor.EVENT_BLUR = "EVENT_BLUR";
BI.TextAreaEditor.EVENT_FOCUS = "EVENT_FOCUS";
BI.shortcut("bi.textarea_editor", BI.TextAreaEditor);/**
 * guy 图标
 * @class BI.Icon
 * @extends BI.Single
 */
BI.Icon = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Icon.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            tagName: "i",
            baseCls: (conf.baseCls || "") + " x-icon b-font horizon-center display-block"
        });
    },
    _init: function () {
        BI.Icon.superclass._init.apply(this, arguments);
        if (BI.isIE9Below()) {
            this.element.addClass("hack");
        }
    }
});
BI.shortcut("bi.icon", BI.Icon);/**
 * @class BI.Iframe
 * @extends BI.Single
 * @abstract
 * Created by GameJian on 2016/3/2.
 */
BI.Iframe = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Iframe.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-iframe",
            src: "",
            width: "100%",
            height: "100%"
        });
    },

    _init: function () {
        var o = this.options;
        this.options.element = $("<iframe frameborder='0' src='" + o.src + "'>");
        BI.Iframe.superclass._init.apply(this, arguments);
    },

    setSrc: function (src) {
        this.options.src = src;
        this.element.attr("src", src);
    },

    getSrc: function () {
        return this.options.src;
    },

    setName: function (name) {
        this.options.name = name;
        this.element.attr("name", name);
    },

    getName: function () {
        return this.options.name;
    },

    getWidth: function () {
        return this.options.width;
    },

    getHeight: function () {
        return this.options.height;
    }
});

BI.shortcut("bi.iframe", BI.Iframe);/**
 * ͼƬ
 *
 * Created by GUY on 2016/1/26.
 * @class BI.Img
 * @extends BI.Single
 * @abstract
 */
BI.Img = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Img.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-img display-block",
            src: "",
            width: "100%",
            height: "100%"
        });
    },

    _init: function () {
        var o = this.options;
        this.options.element = $("<img src='" + o.src + "'>");
        BI.Img.superclass._init.apply(this, arguments);
    },

    setSrc: function (src) {
        this.options.src = src;
        this.element.attr("src", src);
    },

    getSrc: function () {
        return this.options.src;
    }
});

BI.shortcut("bi.img", BI.Img);
/**
 * guy
 * @extends BI.Single
 * @type {*|void|Object}
 */
BI.Checkbox = BI.inherit(BI.IconButton, {
    _defaultConfig: function () {
        var conf = BI.Checkbox.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-checkbox check-box-icon",
            selected: false,
            handler: BI.emptyFn,
            width: 16,
            height: 16,
            iconWidth: 16,
            iconHeight: 16
        });
    },

    _init: function () {
        BI.Checkbox.superclass._init.apply(this, arguments);
    },

    doClick: function () {
        BI.Checkbox.superclass.doClick.apply(this, arguments);
        if(this.isValid()) {
            this.fireEvent(BI.Checkbox.EVENT_CHANGE);
        }
    }
});
BI.Checkbox.EVENT_CHANGE = "Checkbox.EVENT_CHANGE";

BI.shortcut("bi.checkbox", BI.Checkbox);/**
 * 文件
 *
 * Created by GUY on 2016/1/27.
 * @class BI.File
 * @extends BI.Single
 * @abstract
 */
(function () {

    /**
     * @description normalize input.files. create if not present, add item method if not present
     * @param       Object      generated wrap object
     * @return      Object      the wrap object itself
     */
    var F = (function (item) {
        return function (input) {
            var files = input.files || [input];
            if (!files.item) {
                files.item = item;
            }
            return files;
        };
    })(function (i) {
        return this[i];
    });

    var event = {

        /**
         * @description add an event via addEventListener or attachEvent
         * @param       DOMElement  the element to add event
         * @param       String      event name without "on" (e.g. "mouseover")
         * @param       Function    the callback to associate as event
         * @return      Object      noswfupload.event
         */
        add: document.addEventListener ?
            function (node, name, callback) {
                node.addEventListener(name, callback, false);
                return this;
            } :
            function (node, name, callback) {
                node.attachEvent("on" + name, callback);
                return this;
            },

        /**
         * @description remove an event via removeEventListener or detachEvent
         * @param       DOMElement  the element to remove event
         * @param       String      event name without "on" (e.g. "mouseover")
         * @param       Function    the callback associated as event
         * @return      Object      noswfupload.event
         */
        del: document.removeEventListener ?
            function (node, name, callback) {
                node.removeEventListener(name, callback, false);
                return this;
            } :
            function (node, name, callback) {
                node.detachEvent("on" + name, callback);
                return this;
            },

        /**
         * @description to block event propagation and prevent event default
         * @param       void        generated event or undefined
         * @return      Boolean     false
         */
        stop: function (e) {
            if (!e) {
                if (self.event) {
                    event.returnValue = !(event.cancelBubble = true);
                }
            } else {
                e.stopPropagation ? e.stopPropagation() : e.cancelBubble = true;
                e.preventDefault ? e.preventDefault() : e.returnValue = false;
            }

            return false;
        }
    };

    var sendFile = (function (toString) {
        var multipart = function (boundary, name, file) {
                return "--".concat(
                    boundary, CRLF,
                    "Content-Disposition: form-data; name=\"", name, "\"; filename=\"", BI.cjkEncode(file.fileName), "\"", CRLF,
                    "Content-Type: application/octet-stream", CRLF,
                    CRLF,
                    file.getAsBinary(), CRLF,
                    "--", boundary, "--", CRLF
                );
            },
            isFunction = function (Function) {
                return toString.call(Function) === "[object Function]";
            },
            split = "onabort.onerror.onloadstart.onprogress".split("."),
            length = split.length,
            CRLF = "\r\n",
            xhr = this.XMLHttpRequest ? new XMLHttpRequest : new ActiveXObject("Microsoft.XMLHTTP"),
            sendFile;

        // FireFox 3+, Safari 4 beta (Chrome 2 beta file is buggy and will not work)
        if (xhr.upload || xhr.sendAsBinary) {
            sendFile = function (handler, maxSize, width, height) {
                if (-1 < maxSize && maxSize < handler.file.fileSize) {
                    if (isFunction(handler.onerror)) {
                        handler.onerror();
                    }
                    return;
                }
                for (var
                    xhr = new XMLHttpRequest,
                    upload = xhr.upload || {
                        addEventListener: function (event, callback) {
                            this["on" + event] = callback;
                        }
                    },
                    i = 0;
                    i < length;
                    i++
                ) {
                    upload.addEventListener(
                        split[i].substring(2),
                        (function (event) {
                            return function (rpe) {
                                if (isFunction(handler[event])) {
                                    handler[event](rpe, xhr);
                                }
                            };
                        })(split[i]),
                        false
                    );
                }
                upload.addEventListener(
                    "load",
                    function (rpe) {
                        if (handler.onreadystatechange === false) {
                            if (isFunction(handler.onload)) {
                                handler.onload(rpe, xhr);
                            }
                        } else {
                            setTimeout(function () {
                                if (xhr.readyState === 4) {
                                    if (isFunction(handler.onload)) {
                                        handler.onload(rpe, xhr);
                                    }
                                } else {
                                    setTimeout(arguments.callee, 15);
                                }
                            }, 15);
                        }
                    },
                    false
                );
                xhr.open("post", handler.url + "&filename=" + window.encodeURIComponent(handler.file.fileName), true);
                if (!xhr.upload) {
                    var rpe = {loaded: 0, total: handler.file.fileSize || handler.file.size, simulation: true};
                    rpe.interval = setInterval(function () {
                        rpe.loaded += 1024 / 4;
                        if (rpe.total <= rpe.loaded) {
                            rpe.loaded = rpe.total;
                        }
                        upload.onprogress(rpe);
                    }, 100);
                    xhr.onabort = function () {
                        upload.onabort({});
                    };
                    xhr.onerror = function () {
                        upload.onerror({});
                    };
                    xhr.onreadystatechange = function () {
                        switch (xhr.readyState) {
                            case    2:
                            case    3:
                                if (rpe.total <= rpe.loaded) {rpe.loaded = rpe.total;}
                                upload.onprogress(rpe);
                                break;
                            case    4:
                                clearInterval(rpe.interval);
                                rpe.interval = 0;
                                rpe.loaded = rpe.total;
                                upload.onprogress(rpe);
                                if (199 < xhr.status && xhr.status < 400) {
                                    upload["onload"]({});
                                    var attachO = BI.jsonDecode(xhr.responseText);
                                    attachO.filename = handler.file.fileName;
                                    if (handler.file.type.indexOf("image") != -1) {
                                        attachO.attach_type = "image";
                                    }
                                    handler.attach_array.push(attachO);
                                } else {
                                    upload["onerror"]({});
                                }
                                break;
                        }
                    };
                    upload.onloadstart(rpe);
                } else {
                    xhr.onreadystatechange = function () {
                        switch (xhr.readyState) {
                            case    4:
                                var attachO = BI.jsonDecode(xhr.responseText);
                                if (handler.file.type.indexOf("image") != -1) {
                                    attachO.attach_type = "image";
                                }
                                attachO.filename = handler.file.fileName;
                                if (handler.maxlength == 1) {
                                    handler.attach_array[0] = attachO;
                                    //                                   handler.attach_array.push(attachO);
                                } else {
                                    handler.attach_array.push(attachO);
                                }
                                break;
                        }
                    };
                    if (isFunction(upload.onloadstart)) {
                        upload.onloadstart();
                    }
                }
                var boundary = "AjaxUploadBoundary" + (new Date).getTime();
                xhr.setRequestHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
                if (handler.file.getAsBinary) {
                    xhr[xhr.sendAsBinary ? "sendAsBinary" : "send"](multipart(boundary, handler.name, handler.file));
                } else {
                    xhr.setRequestHeader("Content-Type", "multipart/form-data");
                    //                    xhr.setRequestHeader("X-Name", handler.name);
                    //                    xhr.setRequestHeader("X-File-Name", handler.file.fileName);
                    var form = new FormData();
                    form.append("FileData", handler.file);
                    xhr.send(form);
                }
                return handler;
            };
        }
        // Internet Explorer, Opera, others
        else {
            sendFile = function (handler, maxSize, width, height) {
                var url = handler.url.concat(-1 === handler.url.indexOf("?") ? "?" : "&", "AjaxUploadFrame=true"),
                    rpe = {
                        loaded: 1, total: 100, simulation: true, interval: setInterval(function () {
                            if (rpe.loaded < rpe.total) {++rpe.loaded;}
                            if (isFunction(handler.onprogress)) {handler.onprogress(rpe, {});}
                        }, 100)
                    },
                    onload = function () {
                        iframe.onreadystatechange = iframe.onload = iframe.onerror = null;
                        form.parentNode.removeChild(form);
                        form = null;
                        clearInterval(rpe.interval);
                        // rpe.loaded = rpe.total;
                        try {
                            var responseText = (iframe.contentWindow.document || iframe.contentWindow.contentDocument).body.innerHTML;
                            var attachO = BI.jsonDecode(responseText);
                            if (handler.file.type.indexOf("image") != -1) {
                                attachO.attach_type = "image";
                            }

                            // attachO.fileSize = responseText.length;
                            attachO.filename = BI.cjkDecode(handler.file.fileName);
                            if (handler.maxlength == 1) {
                                handler.attach_array[0] = attachO;
                            } else {
                                handler.attach_array.push(attachO);
                            }
                        } catch (e) {
                            if (isFunction(handler.onerror)) {handler.onerror(rpe, event || window.event);}
                        }
                        if (isFunction(handler.onload)) {handler.onload(rpe, {responseText: responseText});}
                    },
                    target = ["AjaxUpload", (new Date).getTime(), String(Math.random()).substring(2)].join("_");
                try { // IE < 8 does not accept enctype attribute ...
                    var form = document.createElement("<form enctype=\"multipart/form-data\"></form>"),
                        iframe = handler.iframe || (handler.iframe = document.createElement("<iframe id=\"" + target + "\" name=\"" + target + "\" src=\"" + url + "\"></iframe>"));
                } catch (e) {
                    var form = document.createElement("form"),
                        iframe = handler.iframe || (handler.iframe = document.createElement("iframe"));
                    form.setAttribute("enctype", "multipart/form-data");
                    iframe.setAttribute("name", iframe.id = target);
                    iframe.setAttribute("src", url);
                }
                iframe.style.position = "absolute";
                iframe.style.left = iframe.style.top = "-10000px";
                iframe.onload = onload;
                iframe.onerror = function (event) {
                    if (isFunction(handler.onerror)) {
                        handler.onerror(rpe, event || window.event);
                    }
                };
                iframe.onreadystatechange = function () {
                    if (/loaded|complete/i.test(iframe.readyState)) {
                        onload();

                        // wei : todo,将附件信息放到handler.attach
                    } else if (isFunction(handler.onloadprogress)) {
                        if (rpe.loaded < rpe.total) {
                            ++rpe.loaded;
                        }
                        handler.onloadprogress(rpe, {
                            readyState: {
                                loading: 2,
                                interactive: 3,
                                loaded: 4,
                                complete: 4
                            }[iframe.readyState] || 1
                        });
                    }
                };
                form.setAttribute("action", handler.url + "&filename=" + window.encodeURIComponent(handler.file.fileName));
                form.setAttribute("target", iframe.id);
                form.setAttribute("method", "post");
                form.appendChild(handler.file);
                form.style.display = "none";
                if (isFunction(handler.onloadstart)) {
                    handler.onloadstart(rpe, {});
                }
                with (document.body || document.documentElement) {
                    appendChild(iframe);
                    appendChild(form);
                    form.submit();
                }

                return handler;
            };
        }
        xhr = null;
        return sendFile;
    })(Object.prototype.toString);

    var sendFiles = function (handler, maxSize, width, height) {

        var length = handler.files.length,
            i = 0,
            onload = handler.onload,
            onloadstart = handler.onloadstart;
        handler.current = 0;
        handler.total = 0;
        handler.sent = 0;
        while (handler.current < length) {
            handler.total += (handler.files[handler.current].fileSize || handler.files[handler.current].size);
            handler.current++;
        }
        handler.current = 0;
        if (length && handler.files[0].fileSize !== -1) {
            handler.file = handler.files[handler.current];

            sendFile(handler, maxSize, width, height).onload = function (rpe, xhr) {
                handler.onloadstart = null;
                handler.sent += (handler.files[handler.current].fileSize || handler.files[handler.current].size);
                if (++handler.current < length) {
                    handler.file = handler.files[handler.current];
                    sendFile(handler, maxSize, width, height).onload = arguments.callee;
                } else if (onload) {
                    handler.onloadstart = onloadstart;
                    handler.onload = onload;
                    handler.onload(rpe, xhr);
                }
            };
        } else if (length) {
            handler.total = length * 100;
            handler.file = handler.files[handler.current];
            sendFile(handler, maxSize, width, height).onload = function (rpe, xhr) {
                var callee = arguments.callee;
                handler.onloadstart = null;
                handler.sent += 100;
                if (++handler.current < length) {
                    if (/\b(chrome|safari)\b/i.test(navigator.userAgent)) {
                        handler.iframe.parentNode.removeChild(handler.iframe);
                        handler.iframe = null;
                    }
                    setTimeout(function () {
                        handler.file = handler.files[handler.current];
                        sendFile(handler, maxSize, width, height).onload = callee;
                    }, 15);
                } else if (onload) {
                    setTimeout(function () {
                        handler.iframe.parentNode.removeChild(handler.iframe);
                        handler.iframe = null;
                        handler.onloadstart = onloadstart;
                        handler.onload = onload;
                        handler.onload(rpe, xhr);
                    }, 15);
                }
            };
        }
        return handler;
    };

    BI.File = BI.inherit(BI.Single, {
        _defaultConfig: function () {
            var conf = BI.File.superclass._defaultConfig.apply(this, arguments);
            return BI.extend(conf, {
                baseCls: (conf.baseCls || "") + " bi-file display-block",
                element: "<input type='file'>",
                name: "",
                url: "",
                multiple: true,
                accept: "", /** '*.jpg; *.zip'**/
                maxSize: -1 // 1024 * 1024
            });
        },

        _init: function () {
            var self = this, o = this.options;
            BI.File.superclass._init.apply(this, arguments);
            if (o.multiple === true) {
                this.element.attr("multiple", "multiple");
            }
            this.element.attr("name", o.name || this.getName());
            this.element.attr("title", o.title || "");
        },

        mounted: function () {
            var self = this, o = this.options;
            // create the noswfupload.wrap Object
            // wrap.maxSize 文件大小限制
            // wrap.maxlength 文件个数限制
            var _wrap = this.wrap = this._wrap(this.element[0], o.maxSize);
            // fileType could contain whatever text but filter checks *.{extension}
            // if present

            // handlers

            _wrap.onloadstart = function (rpe, xhr) {
                // BI.Msg.toast("loadstart");
                self.fireEvent(BI.File.EVENT_UPLOADSTART, arguments);
            };

            _wrap.onprogress = function (rpe, xhr) {
                // BI.Msg.toast("onprogress");
                // percent for each bar

                // fileSize is -1 only if browser does not support file info access
                // this if splits recent browsers from others
                if (this.file.fileSize !== -1) {
                    // simulation property indicates when the progress event is fake
                    if (rpe.simulation) {

                    } else {

                    }
                } else {
                    // if fileSIze is -1 browser is using an iframe because it does
                    // not support
                    // files sent via Ajax (XMLHttpRequest)
                    // We can still show some information
                }
                self.fireEvent(BI.File.EVENT_PROGRESS, {
                    file: this.file,
                    total: rpe.total,
                    loaded: rpe.loaded,
                    simulation: rpe.simulation
                });
            };

            // generated if there is something wrong during upload
            _wrap.onerror = function () {
                // just inform the user something was wrong
                self.fireEvent(BI.File.EVENT_ERROR);
            };

            // generated when every file has been sent (one or more, it does not
            // matter)
            _wrap.onload = function (rpe, xhr) {
                var self_ = this;
                // just show everything is fine ...
                // ... and after a second reset the component
                setTimeout(function () {
                    self_.clean(); // remove files from list
                    self_.hide(); // hide progress bars and enable input file

                    // BI.Msg.toast("onload");
                    self.fireEvent(BI.File.EVENT_UPLOADED);
                    // enable again the submit button/element
                }, 1000);
            };
            _wrap.url = o.url;
            _wrap.fileType = o.accept;   // 文件类型限制
            _wrap.attach_array = [];
            _wrap.attach_names = [];
            _wrap.attachNum = 0;
        },

        _events: function (wrap) {
            var self = this;
            event.add(wrap.dom.input, "change", function () {
                event.del(wrap.dom.input, "change", arguments.callee);
                for (var input = wrap.dom.input.cloneNode(true), i = 0, files = F(wrap.dom.input); i < files.length; i++) {
                    var item = files.item(i);
                    var tempFile = item.value || item.name;
                    var value = item.fileName || (item.fileName = tempFile.split("\\").pop()),
                        ext = -1 !== value.indexOf(".") ? value.split(".").pop().toLowerCase() : "unknown",
                        size = item.fileSize || item.size;
                    if (wrap.fileType && -1 === wrap.fileType.indexOf("*." + ext)) {
                        // 文件类型不支持
                        BI.Msg.toast(BI.i18nText("BI-Upload_File_Type_Error"));
                        self.fireEvent(BI.File.EVENT_ERROR, {
                            errorType: 0,
                            file: item
                        });
                    } else if (wrap.maxSize !== -1 && size && wrap.maxSize < size) {
                        // 文件大小不支持
                        BI.Msg.toast(BI.i18nText("BI-Upload_File_Size_Error"));
                        self.fireEvent(BI.File.EVENT_ERROR, {
                            errorType: 1,
                            file: item
                        });
                    } else {
                        wrap.files.unshift(item);
                        // BI.Msg.toast(value);
                        self.fireEvent(BI.File.EVENT_CHANGE, {
                            file: item
                        });
                    }
                }
                input.value = "";
                wrap.dom.input.parentNode.replaceChild(input, wrap.dom.input);
                wrap.dom.input = input;
                event.add(wrap.dom.input, "change", arguments.callee);
            });
            return wrap;
        },

        _wrap: function () {
            var self = this, o = this.options;
            // be sure input accept multiple files
            var input = this.element[0];
            if (o.multiple === true) {
                this.element.attr("multiple", "multiple");
            }
            input.value = "";

            // wrap Object
            return this._events({

                // DOM namespace
                dom: {
                    input: input,        // input file
                    disabled: false      // internal use, checks input file state
                },
                name: input.name,        // name to send for each file ($_FILES[{name}] in the server)
                // maxSize is the maximum amount of bytes for each file
                maxSize: o.maxSize ? o.maxSize >> 0 : -1,
                files: [],               // file list

                // remove every file from the noswfupload component
                clean: function () {
                    this.files = [];
                },

                // upload one file a time (which make progress possible rather than all files in one shot)
                // the handler is an object injected into the wrap one, could be the wrap itself or
                // something like {onload:function(){alert("OK")},onerror:function(){alert("Error")}, etc ...}
                upload: function (handler) {
                    if (handler) {
                        for (var key in handler) {
                            this[key] = handler[key];
                        }
                    }
                    sendFiles(this, this.maxSize);
                    return this;
                },

                // hide progress bar (total + current) and enable files selection
                hide: function () {
                    if (this.dom.disabled) {
                        this.dom.disabled = false;
                        this.dom.input.removeAttribute("disabled");
                    }
                },

                // show progress bar and disable file selection (used during upload)
                // total and current are pixels used to style bars
                // totalProp and currentProp are properties to change, "height" by default
                show: function (total, current, totalProp, currentProp) {
                    if (!this.dom.disabled) {
                        this.dom.disabled = true;
                        this.dom.input.setAttribute("disabled", "disabled");
                    }
                }
            });
        },

        select: function () {
            $(this.wrap.dom.input).click();
        },

        upload: function (handler) {
            this.wrap.upload(handler);
        },

        getValue: function () {
            return this.wrap.attach_array;
        },

        reset: function () {
            this.wrap.attach_array = [];
            this.wrap.attach_names = [];
            this.wrap.attachNum = 0;
        },

        _setEnable: function (enable) {
            BI.File.superclass._setEnable.apply(this, arguments);
            if (enable === true) {
                this.element.attr("disabled", "disabled");
            } else {
                this.element.removeAttr("disabled");
            }
        }
    });
    BI.File.EVENT_CHANGE = "BI.File.EVENT_CHANGE";
    BI.File.EVENT_UPLOADSTART = "EVENT_UPLOADSTART";
    BI.File.EVENT_ERROR = "EVENT_ERROR";
    BI.File.EVENT_PROGRESS = "EVENT_PROGRESS";
    BI.File.EVENT_UPLOADED = "EVENT_UPLOADED";
    BI.shortcut("bi.file", BI.File);
})();/**
 * guy
 * @class BI.Input 一个button和一行数 组成的一行listitem
 * @extends BI.Single
 * @type {*|void|Object}
 */
BI.Input = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Input.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-input display-block",
            element: "<input/>",
            validationChecker: BI.emptyFn,
            quitChecker: BI.emptyFn, // 按确定键能否退出编辑
            allowBlank: false
        });
    },

    _init: function () {
        BI.Input.superclass._init.apply(this, arguments);
        var self = this;
        var ctrlKey = false;
        var inputEventValid = false;
        var _keydown = BI.debounce(function (keyCode) {
            self.onKeyDown(keyCode, ctrlKey);
            self._keydown_ = false;
        }, 300);
        var _clk = BI.debounce(BI.bind(this._click, this), BI.EVENT_RESPONSE_TIME, {
            "leading": true,
            "trailing": false
        });
        this._blurDebounce = BI.debounce(BI.bind(this._blur, this), BI.EVENT_RESPONSE_TIME, {
            "leading": true,
            "trailing": false
        });
        this.element
            .keydown(function (e) {
                inputEventValid = false;
                ctrlKey = e.ctrlKey;
                self.fireEvent(BI.Input.EVENT_QUICK_DOWN);
            })
            .keyup(function (e) {
                if (!(inputEventValid && e.keyCode === BI.KeyCode.ENTER)) {
                    self._keydown_ = true;
                    _keydown(e.keyCode);
                }
            })
            .on("input propertychange", function (e) {
                // 这个事件在input的属性发生改变的时候就会触发（class的变化也算）
                if (BI.isNotNull(e.keyCode)) {
                    inputEventValid = true;
                    self._keydown_ = true;
                    _keydown(e.keyCode);
                }
            })
            .click(function (e) {
                e.stopPropagation();
                _clk();
            })
            .mousedown(function (e) {
                self.element.val(self.element.val());
            })
            .focusout(function (e) {
                self._blurDebounce();
            });
        if (BI.isKey(this.options.value) || BI.isEmptyString(this.options.value)) {
            this.setValue(this.options.value);
        }
    },

    _focus: function () {
        this.element.addClass("bi-input-focus");
        this._checkValidationOnValueChange();
        this._isEditing = true;
        if (this.getValue() == "") {
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EMPTY, this.getValue(), this);
            this.fireEvent(BI.Input.EVENT_EMPTY);
        }
        this.fireEvent(BI.Input.EVENT_FOCUS);
    },

    _blur: function () {
        var self = this;
        if (self._keydown_ === true) {
            BI.delay(blur, 300);
        } else {
            blur();
        }

        function blur () {
            if (!self.isValid() && self.options.quitChecker.apply(self, [BI.trim(self.getValue())]) !== false) {
                self.element.val(self._lastValidValue ? self._lastValidValue : "");
                self._checkValidationOnValueChange();
                self._defaultState();
            }
            self.element.removeClass("bi-input-focus");
            self._isEditing = false;
            self._start = false;
            if (self.isValid()) {
                self._lastValidValue = self.getValue();
                self.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.CONFIRM, self.getValue(), self);
                self.fireEvent(BI.Input.EVENT_CONFIRM);
            }
            self.fireEvent(BI.Input.EVENT_BLUR);
        }
    },

    _click: function () {
        if (this._isEditing !== true) {
            this._focus();
            this.selectAll();
            this.fireEvent(BI.Input.EVENT_CLICK);
        }
    },

    onClick: function () {
        this._click();
    },

    onKeyDown: function (keyCode, ctrlKey) {
        if (!this.isValid() || BI.trim(this._lastValidValue) !== BI.trim(this.getValue())) {
            this._checkValidationOnValueChange();
        }
        if (this.isValid() && BI.trim(this.getValue()) !== "") {
            if (BI.trim(this.getValue()) !== this._lastValue && (!this._start || this._lastValue == null || this._lastValue === "")
                || (this._pause === true && !/(\s|\u00A0)$/.test(this.getValue()))) {
                this._start = true;
                this._pause = false;
                this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.STARTEDIT, this.getValue(), this);
                this.fireEvent(BI.Input.EVENT_START);
            }
        }
        if (ctrlKey === true && keyCode === 86) {// ctrlKey+V
            this._valueChange();
        } else {
            if (keyCode == BI.KeyCode.ENTER) {
                if (this.isValid() || this.options.quitChecker.apply(this, [BI.trim(this.getValue())]) !== false) {
                    this.blur();
                    this.fireEvent(BI.Input.EVENT_ENTER);
                } else {
                    this.fireEvent(BI.Input.EVENT_RESTRICT);
                }
            }
            if (keyCode == BI.KeyCode.SPACE) {
                this.fireEvent(BI.Input.EVENT_SPACE);
            }
            if (keyCode == BI.KeyCode.BACKSPACE && this._lastValue == "") {
                this.fireEvent(BI.Input.EVENT_REMOVE);
            }
            if (keyCode == BI.KeyCode.BACKSPACE || keyCode == BI.KeyCode.DELETE) {
                this.fireEvent(BI.Input.EVENT_BACKSPACE);
            }
        }
        this.fireEvent(BI.Input.EVENT_KEY_DOWN);

        if (BI.isEndWithBlank(this.getValue())) {
            this._pause = true;
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.PAUSE, "", this);
            this.fireEvent(BI.Input.EVENT_PAUSE);
            this._defaultState();
        } else if ((keyCode === BI.KeyCode.BACKSPACE || keyCode === BI.KeyCode.DELETE) &&
            BI.trim(this.getValue()) === "" && (this._lastValue !== null && BI.trim(this._lastValue) !== "")) {
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.STOPEDIT, this.getValue(), this);
            this.fireEvent(BI.Input.EVENT_STOP);
            this._valueChange();
        } else {
            this._valueChange();
        }
    },

    // 初始状态
    _defaultState: function () {
        if (this.getValue() == "") {
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EMPTY, this.getValue(), this);
            this.fireEvent(BI.Input.EVENT_EMPTY);
        }
        this._lastValue = this.getValue();
        this._lastSubmitValue = null;
    },

    _valueChange: function () {
        if (this.isValid() && BI.trim(this.getValue()) !== this._lastSubmitValue) {
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.CHANGE, this.getValue(), this);
            this.fireEvent(BI.Input.EVENT_CHANGE);
            this._lastSubmitValue = BI.trim(this.getValue());
        }
        if (this.getValue() == "") {
            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EMPTY, this.getValue(), this);
            this.fireEvent(BI.Input.EVENT_EMPTY);
        }
        this._lastValue = this.getValue();
    },

    _checkValidationOnValueChange: function () {
        var o = this.options;
        var v = this.getValue();
        this.setValid(
            (o.allowBlank === true && BI.trim(v) == "") ||
            (BI.isNotEmptyString(BI.trim(v))
                && (v === this._lastValidValue ||
                    o.validationChecker.apply(this, [BI.trim(v)]) !== false))
        );
    },

    focus: function () {
        if (!this.element.is(":visible")) {
            throw new Error("input输入框在不可见下不能focus");
        }
        if (!this._isEditing === true) {
            this.element.focus();
            this._focus();
            this.selectAll();
        }
    },

    blur: function () {
        if (!this.element.is(":visible")) {
            throw new Error("input输入框在不可见下不能blur");
        }
        if (this._isEditing === true) {
            this.element.blur();
            this._blurDebounce();
        }
    },

    selectAll: function () {
        if (!this.element.is(":visible")) {
            throw new Error("input输入框在不可见下不能select");
        }
        this.element.select();
        this._isEditing = true;
    },

    setValue: function (textValue) {
        this.element.val(textValue);
        BI.nextTick(BI.bind(function () {
            this._checkValidationOnValueChange();
            this._defaultState();
            if (this.isValid()) {
                this._lastValidValue = this._lastSubmitValue = this.getValue();
            }
        }, this));
    },

    getValue: function () {
        return this.element.val() || "";
    },

    isEditing: function () {
        return this._isEditing;
    },

    getLastValidValue: function () {
        return this._lastValidValue;
    },

    _setValid: function () {
        BI.Input.superclass._setValid.apply(this, arguments);
        if (this.isValid()) {
            this.element.removeClass("bi-input-error");
            this.fireEvent(BI.Input.EVENT_VALID, BI.trim(this.getValue()), this);
        } else {
            if (this._lastValidValue === this.getValue()) {
                this._lastValidValue = null;
            }
            this.element.addClass("bi-input-error");
            this.fireEvent(BI.Input.EVENT_ERROR, BI.trim(this.getValue()), this);
        }
    },

    _setEnable: function (b) {
        BI.Input.superclass._setEnable.apply(this, [b]);
        this.element[0].disabled = !b;
    }
});
BI.Input.EVENT_CHANGE = "EVENT_CHANGE";

BI.Input.EVENT_FOCUS = "EVENT_FOCUS";
BI.Input.EVENT_CLICK = "EVENT_CLICK";
BI.Input.EVENT_BLUR = "EVENT_BLUR";
BI.Input.EVENT_KEY_DOWN = "EVENT_KEY_DOWN";
BI.Input.EVENT_QUICK_DOWN = "EVENT_QUICK_DOWN";
BI.Input.EVENT_SPACE = "EVENT_SPACE";
BI.Input.EVENT_BACKSPACE = "EVENT_BACKSPACE";

BI.Input.EVENT_START = "EVENT_START";
BI.Input.EVENT_PAUSE = "EVENT_PAUSE";
BI.Input.EVENT_STOP = "EVENT_STOP";
BI.Input.EVENT_CONFIRM = "EVENT_CONFIRM";
BI.Input.EVENT_REMOVE = "EVENT_REMOVE";
BI.Input.EVENT_EMPTY = "EVENT_EMPTY";
BI.Input.EVENT_VALID = "EVENT_VALID";
BI.Input.EVENT_ERROR = "EVENT_ERROR";
BI.Input.EVENT_ENTER = "EVENT_ENTER";
BI.Input.EVENT_RESTRICT = "EVENT_RESTRICT";
BI.shortcut("bi.input", BI.Input);/**
 * guy
 * @extends BI.Single
 * @type {*|void|Object}
 */
BI.Radio = BI.inherit(BI.IconButton, {
    _defaultConfig: function () {
        var conf = BI.Radio.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-radio radio-icon",
            selected: false,
            handler: BI.emptyFn,
            width: 16,
            height: 16,
            iconWidth: 16,
            iconHeight: 16
        });
    },

    _init: function () {
        BI.Radio.superclass._init.apply(this, arguments);
    },

    doClick: function () {
        BI.Radio.superclass.doClick.apply(this, arguments);
        if(this.isValid()) {
            this.fireEvent(BI.Radio.EVENT_CHANGE);
        }
    }
});
BI.Radio.EVENT_CHANGE = "Radio.EVENT_CHANGE";

BI.shortcut("bi.radio", BI.Radio);/**
 * @class BI.IconButton
 * @extends BI.BasicButton
 * 图标标签
 */
BI.IconLabel = BI.inherit(BI.Single, {

    props: {
        baseCls: "bi-icon-label horizon-center",
        iconWidth: null,
        iconHeight: null
    },

    _init: function () {
        BI.IconLabel.superclass._init.apply(this, arguments);
        var o = this.options;
        this.element.css({
            textAlign: "center"
        });
        this.icon = BI.createWidget({
            type: "bi.icon",
            width: o.iconWidth,
            height: o.iconHeight
        });
        if (BI.isNumber(o.height) && o.height > 0 && BI.isNull(o.iconWidth) && BI.isNull(o.iconHeight)) {
            this.element.css("lineHeight", o.height + "px");
            BI.createWidget({
                type: "bi.default",
                element: this,
                items: [this.icon]
            });
        } else {
            this.element.css("lineHeight", "1");
            BI.createWidget({
                element: this,
                type: "bi.center_adapt",
                items: [this.icon]
            });
        }
    }
});
BI.shortcut("bi.icon_label", BI.IconLabel);/**
 * Created by GUY on 2015/6/26.
 */

BI.Label = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Label.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-label",
            textAlign: "center",
            whiteSpace: "nowrap", // normal  or  nowrap
            forceCenter: false, // 是否无论如何都要居中, 不考虑超出边界的情况, 在未知宽度和高度时有效
            textWidth: null,
            textHeight: null,
            hgap: 0,
            vgap: 0,
            lgap: 0,
            rgap: 0,
            tgap: 0,
            bgap: 0,
            text: "",
            py: "",
            keyword: ""
        });
    },

    _createJson: function () {
        var o = this.options;
        return {
            type: "bi.text",
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace,
            lineHeight: o.textHeight,
            text: o.text,
            value: o.value,
            py: o.py,
            keyword: o.keyword
        };
    },

    _init: function () {
        BI.Label.superclass._init.apply(this, arguments);

        if (this.options.textAlign === "center") {
            this._createCenterEl();
        } else {
            this._createNotCenterEl();
        }
    },

    _createCenterEl: function () {
        var o = this.options;
        var json = this._createJson();
        if (BI.isNumber(o.width) && o.width > 0) {
            if (BI.isNumber(o.textWidth) && o.textWidth > 0) {
                if (BI.isNumber(o.height) && o.height > 0) {
                    var gap = (o.width - o.textWidth) / 2;
                    BI.createWidget({
                        type: "bi.adaptive",
                        height: o.height,
                        scrollable: o.whiteSpace === "normal",
                        element: this,
                        items: [
                            {
                                el: (this.text = BI.createWidget(json)),
                                left: gap + o.hgap + o.lgap,
                                right: gap + o.hgap + o.rgap,
                                top: o.vgap + o.tgap,
                                bottom: o.vgap + o.bgap
                            }
                        ]
                    });
                    this.element.css({"line-height": o.height + "px"});
                    return;
                }
                json.width = o.textWidth;
                BI.createWidget({
                    type: "bi.center_adapt",
                    scrollable: o.whiteSpace === "normal",
                    element: this,
                    items: [
                        {
                            el: (this.text = BI.createWidget(json))
                        }
                    ]
                });
                return;
            }
            if (o.whiteSpace == "normal") {
                this.text = BI.createWidget(json);
                BI.createWidget({
                    type: "bi.center_adapt",
                    scrollable: o.whiteSpace === "normal",
                    hgap: o.hgap,
                    vgap: o.vgap,
                    lgap: o.lgap,
                    rgap: o.rgap,
                    tgap: o.tgap,
                    bgap: o.bgap,
                    element: this,
                    items: [this.text]
                });
                return;
            }
            if (BI.isNumber(o.height) && o.height > 0) {
                this.element.css({
                    "line-height": o.height + "px"
                });
                BI.createWidget({
                    type: "bi.absolute",
                    scrollable: o.whiteSpace === "normal",
                    element: this,
                    items: [{
                        el: (this.text = BI.createWidget(json)),
                        left: o.hgap + o.lgap,
                        right: o.hgap + o.rgap,
                        top: o.vgap + o.tgap,
                        bottom: o.vgap + o.bgap
                    }]
                });
                return;
            }
            json.width = o.width - 2 * o.hgap;
            BI.createWidget({
                type: "bi.center_adapt",
                scrollable: o.whiteSpace === "normal",
                element: this,
                items: [{
                    el: (this.text = BI.createWidget(json))
                }]
            });
            return;
        }
        if (BI.isNumber(o.textWidth) && o.textWidth > 0) {
            json.width = o.textWidth;
            BI.createWidget({
                type: "bi.center_adapt",
                scrollable: o.whiteSpace === "normal",
                element: this,
                items: [
                    {
                        el: (this.text = BI.createWidget(json))
                    }
                ]
            });
            return;
        }
        if (o.whiteSpace == "normal") {
            this.text = BI.createWidget(json);
            BI.createWidget({
                type: "bi.center_adapt",
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap,
                scrollable: o.whiteSpace === "normal",
                element: this,
                items: [this.text]
            });
            return;
        }
        if (BI.isNumber(o.height) && o.height > 0) {
            if (BI.isNumber(o.textHeight) && o.textHeight > 0) {
                this.element.css({
                    "line-height": o.height + "px"
                });
                BI.createWidget({
                    type: "bi.adaptive",
                    height: o.height,
                    scrollable: o.whiteSpace === "normal",
                    element: this,
                    items: [{
                        el: (this.text = BI.createWidget(json)),
                        left: o.hgap + o.lgap,
                        right: o.hgap + o.rgap,
                        top: o.vgap + o.tgap,
                        bottom: o.vgap + o.bgap
                    }]
                });
                return;
            }
            BI.extend(json, {
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap
            });
            this.element.css({
                "line-height": o.height + "px"
            });
            this.text = BI.createWidget(BI.extend(json, {
                element: this
            }));
            BI.createWidget({
                type: "bi.layout",
                element: this.text,
                scrollable: o.whiteSpace === "normal"
            });
            return;
        }
        BI.extend(json, {
            hgap: o.hgap,
            vgap: o.vgap,
            lgap: o.lgap,
            rgap: o.rgap,
            tgap: o.tgap,
            bgap: o.bgap
        });
        if (o.forceCenter) {
            this.text = BI.createWidget(json);
            BI.createWidget({
                type: "bi.center_adapt",
                element: this,
                items: [this.text]
            });
            return;
        }
        this.text = BI.createWidget(BI.extend(json, {
            element: this
        }));
        BI.createWidget({
            type: "bi.layout",
            element: this.text,
            scrollable: o.whiteSpace === "normal"
        });
    },

    _createNotCenterEl: function () {
        var o = this.options;
        var json = this._createJson();
        if (BI.isNumber(o.width) && o.width > 0) {
            if (BI.isNumber(o.textWidth) && o.textWidth > 0) {
                json.width = o.textWidth;
                if (BI.isNumber(o.height) && o.height > 0) {
                    BI.createWidget({
                        type: "bi.adaptive",
                        height: o.height,
                        scrollable: o.whiteSpace === "normal",
                        element: this,
                        items: [
                            {
                                el: (this.text = BI.createWidget(json)),
                                left: o.hgap + o.lgap,
                                right: o.hgap + o.rgap,
                                top: o.vgap + o.tgap,
                                bottom: o.vgap + o.bgap
                            }
                        ]
                    });
                    this.element.css({"line-height": o.height + "px"});
                    return;
                }
                BI.createWidget({
                    type: "bi.vertical_adapt",
                    scrollable: o.whiteSpace === "normal",
                    hgap: o.hgap,
                    vgap: o.vgap,
                    lgap: o.lgap,
                    rgap: o.rgap,
                    tgap: o.tgap,
                    bgap: o.bgap,
                    element: this,
                    items: [
                        {
                            el: (this.text = BI.createWidget(json))
                        }
                    ]
                });
                return;
            }
            if (o.whiteSpace == "normal") {
                this.text = BI.createWidget(json);
                BI.createWidget({
                    type: "bi.vertical_adapt",
                    scrollable: o.whiteSpace === "normal",
                    hgap: o.hgap,
                    vgap: o.vgap,
                    lgap: o.lgap,
                    rgap: o.rgap,
                    tgap: o.tgap,
                    bgap: o.bgap,
                    element: this,
                    items: [this.text]
                });
                return;
            }
            if (BI.isNumber(o.height) && o.height > 0) {
                this.element.css({
                    "line-height": o.height + "px"
                });
                BI.createWidget({
                    type: "bi.absolute",
                    scrollable: o.whiteSpace === "normal",
                    element: this,
                    items: [{
                        el: (this.text = BI.createWidget(json)),
                        left: o.hgap + o.lgap,
                        right: o.hgap + o.rgap,
                        top: o.vgap + o.tgap,
                        bottom: o.vgap + o.bgap
                    }]
                });
                return;
            }
            json.width = o.width - 2 * o.hgap - o.lgap - o.rgap;
            BI.createWidget({
                type: "bi.vertical_adapt",
                scrollable: o.whiteSpace === "normal",
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap,
                element: this,
                items: [{
                    el: (this.text = BI.createWidget(json))
                }]
            });
            return;
        }
        if (BI.isNumber(o.textWidth) && o.textWidth > 0) {
            json.width = o.textWidth;
            BI.createWidget({
                type: "bi.vertical_adapt",
                scrollable: o.whiteSpace === "normal",
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap,
                element: this,
                items: [
                    {
                        el: (this.text = BI.createWidget(json))
                    }
                ]
            });
            return;
        }
        if (o.whiteSpace == "normal") {
            this.text = BI.createWidget(json);
            BI.createWidget({
                type: "bi.vertical_adapt",
                scrollable: o.whiteSpace === "normal",
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap,
                element: this,
                items: [this.text]
            });
            return;
        }
        if (BI.isNumber(o.height) && o.height > 0) {
            if (BI.isNumber(o.textHeight) && o.textHeight > 0) {
                this.element.css({
                    "line-height": o.height + "px"
                });
                BI.createWidget({
                    type: "bi.adaptive",
                    height: o.height,
                    scrollable: o.whiteSpace === "normal",
                    element: this,
                    items: [{
                        el: (this.text = BI.createWidget(json)),
                        left: o.hgap + o.lgap,
                        right: o.hgap + o.rgap,
                        top: o.vgap + o.tgap,
                        bottom: o.vgap + o.bgap
                    }]
                });
                return;
            }
            BI.extend(json, {
                hgap: o.hgap,
                vgap: o.vgap,
                lgap: o.lgap,
                rgap: o.rgap,
                tgap: o.tgap,
                bgap: o.bgap
            });
            this.element.css({
                "line-height": o.height + "px"
            });
            this.text = BI.createWidget(BI.extend(json, {
                element: this
            }));
            BI.createWidget({
                type: "bi.layout",
                element: this.text,
                scrollable: o.whiteSpace === "normal"
            });
            return;
        }
        BI.extend(json, {
            hgap: o.hgap,
            vgap: o.vgap,
            lgap: o.lgap,
            rgap: o.rgap,
            tgap: o.tgap,
            bgap: o.bgap
        });
        if (o.forceCenter) {
            this.text = BI.createWidget(json);
            BI.createWidget({
                type: "bi.vertical_adapt",
                element: this,
                items: [this.text]
            });
            return;
        }
        this.text = BI.createWidget(BI.extend(json, {
            element: this
        }));
        BI.createWidget({
            type: "bi.layout",
            element: this.text,
            scrollable: o.whiteSpace === "normal"
        });
    },

    _setEnable: function (enable) {
        BI.Label.superclass._setEnable.apply(this, arguments);
        if (enable === true) {
            this.element.removeClass("base-disabled disabled");
        } else if (enable === false) {
            this.element.addClass("base-disabled disabled");
        }
    },

    doRedMark: function () {
        this.text.doRedMark.apply(this.text, arguments);
    },

    unRedMark: function () {
        this.text.unRedMark.apply(this.text, arguments);
    },

    doHighLight: function () {
        this.text.doHighLight.apply(this.text, arguments);
    },

    unHighLight: function () {
        this.text.unHighLight.apply(this.text, arguments);
    },

    setText: function (v) {
        this.options.text = v;
        this.text.setText(v);
    },

    getText: function () {
        return this.options.text;
    },

    setStyle: function (css) {
        this.text.setStyle(css);
    },

    setValue: function (v) {
        BI.Label.superclass.setValue.apply(this, arguments);
        if (!this.isReadOnly()) {
            this.text.setValue(v);
        }
    },

    populate: function () {
        BI.Label.superclass.populate.apply(this, arguments);
    }
});

BI.shortcut("bi.label", BI.Label);/**
 * guy a元素
 * @class BI.Link
 * @extends BI.Text
 */
BI.Link = BI.inherit(BI.Label, {
    _defaultConfig: function () {
        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-link display-block",
            tagName: "a",
            href: "",
            target: "_blank"
        });
    },

    _createJson: function () {
        var o = this.options;
        return {
            type: "bi.a",
            textAlign: o.textAlign,
            whiteSpace: o.whiteSpace,
            lineHeight: o.textHeight,
            text: o.text,
            keyword: o.keyword,
            value: o.value,
            py: o.py,
            href: o.href,
            target: o.target
        };
    },

    _init: function () {
        BI.Link.superclass._init.apply(this, arguments);
    }
});

BI.shortcut("bi.link", BI.Link);/**
 * guy
 * 气泡提示
 * @class BI.Bubble
 * @extends BI.Tip
 * @type {*|void|Object}
 */
BI.Bubble = BI.inherit(BI.Tip, {
    _defaultConfig: function () {
        return BI.extend(BI.Bubble.superclass._defaultConfig.apply(this, arguments), {
            extraCls: "bi-bubble",
            direction: "top",
            text: "",
            level: "error",
            height: 18
        });
    },
    _init: function () {
        BI.Bubble.superclass._init.apply(this, arguments);
        var fn = function (e) {
            e.stopPropagation();
            e.stopEvent();
            return false;
        };
        this.element.bind({click: fn, mousedown: fn, mouseup: fn, mouseover: fn, mouseenter: fn, mouseleave: fn, mousemove: fn});
        BI.createWidget({
            type: "bi.left",
            element: this,
            items: [this["_" + this.options.direction]()]
        });
    },

    _createBubbleText: function () {
        var o = this.options;
        return (this.text = BI.createWidget({
            type: "bi.label",
            cls: "bubble-text" + (" bubble-" + o.level),
            text: o.text,
            hgap: 5,
            height: 18
        }));
    },

    _top: function () {
        return BI.createWidget({
            type: "bi.vertical",
            items: [{
                el: this._createBubbleText(),
                height: 18
            }, {
                el: {
                    type: "bi.layout"
                },
                height: 3
            }]
        });
    },

    _bottom: function () {
        return BI.createWidget({
            type: "bi.vertical",
            items: [{
                el: {
                    type: "bi.layout"
                },
                height: 3
            }, {
                el: this._createBubbleText(),
                height: 18
            }]
        });
    },

    _left: function () {
        return BI.createWidget({
            type: "bi.right",
            items: [{
                el: {
                    type: "bi.layout",
                    width: 3,
                    height: 18
                }
            }, {
                el: this._createBubbleText()
            }]
        });
    },

    _right: function () {
        return BI.createWidget({
            type: "bi.left",
            items: [{
                el: {
                    type: "bi.layout",
                    width: 3,
                    height: 18
                }
            }, {
                el: this._createBubbleText()
            }]
        });
    },

    setText: function (text) {
        this.text.setText(text);
    }
});

BI.shortcut("bi.bubble", BI.Bubble);/**
 * toast提示
 *
 * Created by GUY on 2015/9/7.
 * @class BI.Toast
 * @extends BI.Tip
 */
BI.Toast = BI.inherit(BI.Tip, {
    _const: {
        minWidth: 200,
        hgap: 10
    },

    _defaultConfig: function () {
        return BI.extend(BI.Toast.superclass._defaultConfig.apply(this, arguments), {
            extraCls: "bi-toast",
            text: "",
            level: "success" // success或warning
        });
    },
    _init: function () {
        BI.Toast.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.element.css({
            minWidth: this._const.minWidth + "px"
        });
        this.element.addClass("toast-" + o.level);
        var fn = function (e) {
            e.stopPropagation();
            e.stopEvent();
            return false;
        };
        this.element.bind({click: fn, mousedown: fn, mouseup: fn, mouseover: fn, mouseenter: fn, mouseleave: fn, mousemove: fn});
        var cls = "close-font";
        switch(o.level) {
            case "success":
                cls = "toast-success-font";
                break;
            case "error":
                cls = "toast-error-font";
                break;
            case "warning":
                cls = "toast-warning-font";
                break;
            case "normal":
            default:
                cls = "toast-message-font";
                break;
        }

        var items = [{
            type: "bi.icon_button",
            disableSelected: true,
            cls: cls + " toast-icon",
            width: 36
        }, {
            el: {
                type: "bi.label",
                whiteSpace: "normal",
                text: o.text,
                textHeight: 16,
                textAlign: "left"
            },
            rgap: o.autoClose ? this._const.hgap : 0
        }];

        var columnSize = [36, ""];

        if(o.autoClose === false) {
            items.push({
                type: "bi.icon_button",
                cls: "close-font toast-icon",
                handler: function () {
                    self.destroy();
                },
                width: 36
            });
            columnSize.push(36);
        }

        this.text = BI.createWidget({
            type: "bi.horizontal_adapt",
            element: this,
            items: items,
            vgap: 7,
            columnSize: columnSize
        });
    },

    setText: function (text) {
        this.text.setText(text);
    }
});

BI.shortcut("bi.toast", BI.Toast);/**
 * toast提示
 *
 * Created by GUY on 2015/9/7.
 * @class BI.Tooltip
 * @extends BI.Tip
 */
BI.Tooltip = BI.inherit(BI.Tip, {
    _const: {
        hgap: 10
    },

    _defaultConfig: function () {
        return BI.extend(BI.Tooltip.superclass._defaultConfig.apply(this, arguments), {
            extraCls: "bi-tooltip",
            text: "",
            level: "success", // success或warning
            stopEvent: false,
            stopPropagation: false,
            height: 20
        });
    },
    _init: function () {
        BI.Tooltip.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.element.addClass("tooltip-" + o.level);
        var fn = function (e) {
            o.stopPropagation && e.stopPropagation();
            o.stopEvent && e.stopEvent();
        };
        this.element.bind({
            click: fn,
            mousedown: fn,
            mouseup: fn,
            mouseover: fn,
            mouseenter: fn,
            mouseleave: fn,
            mousemove: fn
        });

        var texts = (o.text + "").split("\n");
        if (texts.length > 1) {
            BI.createWidget({
                type: "bi.vertical",
                element: this,
                hgap: this._const.hgap,
                items: BI.map(texts, function (i, text) {
                    return {
                        type: "bi.label",
                        textAlign: "left",
                        whiteSpace: "normal",
                        text: text,
                        textHeight: 16
                    };
                })
            });
        } else {
            this.text = BI.createWidget({
                type: "bi.label",
                element: this,
                textAlign: "left",
                whiteSpace: "normal",
                text: o.text,
                textHeight: 20,
                hgap: this._const.hgap
            });
        }
    },

    setWidth: function (width) {
        this.element.width(width - 2 * this._const.hgap);
    },

    setText: function (text) {
        this.text && this.text.setText(text);
    },

    setLevel: function (level) {
        this.element.removeClass("tooltip-success").removeClass("tooltip-warning");
        this.element.addClass("tooltip-" + level);
    }
});

BI.shortcut("bi.tooltip", BI.Tooltip);/**
 * 下拉
 * @class BI.Trigger
 * @extends BI.Single
 * @abstract
 */
BI.Trigger = BI.inherit(BI.Single, {
    _defaultConfig: function () {
        var conf = BI.Trigger.superclass._defaultConfig.apply(this, arguments);
        return BI.extend(conf, {
            baseCls: (conf.baseCls || "") + " bi-trigger cursor-pointer",
            height: 24
        });
    },

    _init: function () {
        BI.Trigger.superclass._init.apply(this, arguments);
    },

    setKey: function () {

    },

    getKey: function () {

    }
});// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function (mod) {
    mod(CodeMirror);
})(function (CodeMirror) {

    var tables;
    var defaultTable;
    var keywords;
    var identifierQuote;
    var CONS = {
        QUERY_DIV: ";",
        ALIAS_KEYWORD: "AS"
    };
    var Pos = CodeMirror.Pos, cmpPos = CodeMirror.cmpPos;

    function isArray (val) { return Object.prototype.toString.call(val) == "[object Array]"; }

    function getKeywords (editor) {
        var mode = editor.doc.modeOption;
        if (mode === "sql") mode = "text/x-sql";
        return CodeMirror.resolveMode(mode).keywords;
    }

    function getIdentifierQuote (editor) {
        var mode = editor.doc.modeOption;
        if (mode === "sql") mode = "text/x-sql";
        return CodeMirror.resolveMode(mode).identifierQuote || "`";
    }

    function getText (item) {
        return typeof item === "string" ? item : item.text;
    }

    function wrapTable (name, value) {
        if (isArray(value)) value = {columns: value};
        if (!value.text) value.text = name;
        return value;
    }

    function parseTables (input) {
        var result = {};
        if (isArray(input)) {
            for (var i = input.length - 1; i >= 0; i--) {
                var item = input[i];
                result[getText(item).toUpperCase()] = wrapTable(getText(item), item);
            }
        } else if (input) {
            for (var name in input) {result[name.toUpperCase()] = wrapTable(name, input[name]);}
        }
        return result;
    }

    function getTable (name) {
        return tables[name.toUpperCase()];
    }

    function shallowClone (object) {
        var result = {};
        for (var key in object) {
            if (object.hasOwnProperty(key)) {result[key] = object[key];}
        }
        return result;
    }

    function match (string, word) {
        if (BI.isNotEmptyString(string) && word.length !== string.length) {
            var len = string.length;
            var sub = getText(word).substr(0, len);
            return string.toUpperCase() === sub.toUpperCase();
        }
    }

    function addMatches (result, search, wordlist, formatter) {
        if (isArray(wordlist)) {
            for (var i = 0; i < wordlist.length; i++) {if (match(search, wordlist[i])) result.push(formatter(wordlist[i], i));}
        } else {
            for (var word in wordlist) {
                if (wordlist.hasOwnProperty(word)) {
                    var val = wordlist[word];
                    if (!val || val === true) {val = word;} else {val = val.displayText ? {text: val.text, displayText: val.displayText} : val.text;}
                    if (match(search, val)) result.push(formatter(val, -1));
                }
            }
        }
    }

    function cleanName (name) {
    // Get rid name from identifierQuote and preceding dot(.)
        if (name.charAt(0) == ".") {
            name = name.substr(1);
        }
        // replace doublicated identifierQuotes with single identifierQuotes
        // and remove single identifierQuotes
        var nameParts = name.split(identifierQuote + identifierQuote);
        for (var i = 0; i < nameParts.length; i++) {nameParts[i] = nameParts[i].replace(new RegExp(identifierQuote, "g"), "");}
        return nameParts.join(identifierQuote);
    }

    function insertIdentifierQuotes (name) {
        var nameParts = getText(name).split(".");
        for (var i = 0; i < nameParts.length; i++) {
            nameParts[i] = identifierQuote +
        // doublicate identifierQuotes
        nameParts[i].replace(new RegExp(identifierQuote, "g"), identifierQuote + identifierQuote) +
        identifierQuote;
        }
        var escaped = nameParts.join(".");
        if (typeof name === "string") return escaped;
        name = shallowClone(name);
        name.text = escaped;
        return name;
    }

    function nameCompletion (cur, token, result, editor) {
    // Try to complete table, column names and return start position of completion
        var useIdentifierQuotes = false;
        var nameParts = [];
        var start = token.start;
        var cont = true;
        while (cont) {
            cont = (token.string.charAt(0) == ".");
            useIdentifierQuotes = useIdentifierQuotes || (token.string.charAt(0) == identifierQuote);

            start = token.start;
            nameParts.unshift(cleanName(token.string));

            token = editor.getTokenAt(Pos(cur.line, token.start));
            if (token.string == ".") {
                cont = true;
                token = editor.getTokenAt(Pos(cur.line, token.start));
            }
        }

        // Try to complete table names
        var string = nameParts.join(".");
        addMatches(result, string, tables, function (w) {
            return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
        });

        // Try to complete columns from defaultTable
        addMatches(result, string, defaultTable, function (w) {
            return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
        });

        // Try to complete columns
        string = nameParts.pop();
        var table = nameParts.join(".");

        var alias = false;
        var aliasTable = table;
        // Check if table is available. If not, find table by Alias
        if (!getTable(table)) {
            var oldTable = table;
            table = findTableByAlias(table, editor);
            if (table !== oldTable) alias = true;
        }

        var columns = getTable(table);
        if (columns && columns.columns) {columns = columns.columns;}

        if (columns) {
            addMatches(result, string, columns, function (w) {
                var tableInsert = table;
                if (alias == true) tableInsert = aliasTable;
                if (typeof w === "string") {
                    w = tableInsert + "." + w;
                } else {
                    w = shallowClone(w);
                    w.text = tableInsert + "." + w.text;
                }
                return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
            });
        }

        return start;
    }

    function eachWord (lineText, f) {
        var words = lineText.split(/\s+/);
        for (var i = 0; i < words.length; i++) {if (words[i]) f(words[i].replace(/[,;]/g, ""));}
    }

    function findTableByAlias (alias, editor) {
        var doc = editor.doc;
        var fullQuery = doc.getValue();
        var aliasUpperCase = alias.toUpperCase();
        var previousWord = "";
        var table = "";
        var separator = [];
        var validRange = {
            start: Pos(0, 0),
            end: Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).length)
        };

        // add separator
        var indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV);
        while(indexOfSeparator != -1) {
            separator.push(doc.posFromIndex(indexOfSeparator));
            indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV, indexOfSeparator + 1);
        }
        separator.unshift(Pos(0, 0));
        separator.push(Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).text.length));

        // find valid range
        var prevItem = null;
        var current = editor.getCursor();
        for (var i = 0; i < separator.length; i++) {
            if ((prevItem == null || cmpPos(current, prevItem) > 0) && cmpPos(current, separator[i]) <= 0) {
                validRange = {start: prevItem, end: separator[i]};
                break;
            }
            prevItem = separator[i];
        }

        var query = doc.getRange(validRange.start, validRange.end, false);

        for (var i = 0; i < query.length; i++) {
            var lineText = query[i];
            eachWord(lineText, function (word) {
                var wordUpperCase = word.toUpperCase();
                if (wordUpperCase === aliasUpperCase && getTable(previousWord)) {table = previousWord;}
                if (wordUpperCase !== CONS.ALIAS_KEYWORD) {previousWord = word;}
            });
            if (table) break;
        }
        return table;
    }

    CodeMirror.registerHelper("hint", "sql", function (editor, options) {
        tables = parseTables(options && options.tables);
        var defaultTableName = options && options.defaultTable;
        var disableKeywords = options && options.disableKeywords;
        defaultTable = defaultTableName && getTable(defaultTableName);
        keywords = getKeywords(editor);
        var keywordsCount = BI.size(keywords);
        var functions = [];
        var cur = editor.getCursor();
        var token = editor.getTokenAt(cur);
        if(options.supportFunction){
            BI.each(BI.FormulaCollections, function (idx, formula) {
                if(formula.lastIndexOf(token.string, 0) == 0 && !BI.contains(functions, formula)) {
                    functions.push(formula);
                }
            });
            keywords = BI.concat(BI.keys(keywords), functions);
        }
        identifierQuote = getIdentifierQuote(editor);

        if (defaultTableName && !defaultTable) {defaultTable = findTableByAlias(defaultTableName, editor);}

        defaultTable = defaultTable || [];

        if (defaultTable.columns) {defaultTable = defaultTable.columns;}

        var result = [];
        var start, end, search;
        if (token.end > cur.ch) {
            token.end = cur.ch;
            token.string = token.string.slice(0, cur.ch - token.start);
        }

        if (token.string.match(/^[.`"\w@]\w*$/)) {
            search = token.string;
            start = token.start;
            end = token.end;
        } else {
            start = end = cur.ch;
            search = "";
        }
        if (search.charAt(0) == "." || search.charAt(0) == identifierQuote) {
            start = nameCompletion(cur, token, result, editor);
        } else {
            addMatches(result, search, tables, function (w) {return w;});
            addMatches(result, search, defaultTable, function (w) {return w;});
            if (!disableKeywords) {
                addMatches(result, search, keywords, function (w, i) {
                    var isKeyword = i < keywordsCount;
                    return {
                        isKeyword: isKeyword,
                        text: w
                    // description: desc[w] || "SQL关键字",
                    // className: isKeyword ? "sql-keyword" : "sql-fr-function",
                    // render: function (Element, self, data) {
                    //   var label = BI.createWidget({
                    //     type: "bi.label",
                    //     element: Element,
                    //     text: data.displayText || getText(data)
                    //   });
                    //   label.setTitle(data.description, {
                    //     container: "body"
            
                    //   });
                    // }
                    };
                });
            }
        }

        return {list: result, from: Pos(cur.line, start), to: Pos(cur.line, end)};
    });
});
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function (mod) {
    mod(CodeMirror);
})(function (CodeMirror) {
    "use strict";

    CodeMirror.defineMode("sql", function (config, parserConfig) {
        "use strict";

        var client         = parserConfig.client || {},
            atoms          = parserConfig.atoms || {"false": true, "true": true, "null": true},
            builtin        = parserConfig.builtin || {},
            keywords       = parserConfig.keywords || {},
            operatorChars  = parserConfig.operatorChars || /^[*+\-%<>!=&|~^]/,
            support        = parserConfig.support || {},
            hooks          = parserConfig.hooks || {},
            dateSQL        = parserConfig.dateSQL || {date: true, time: true, timestamp: true},
            functions      = parserConfig.functions || {};

        function tokenBase (stream, state) {
            var ch = stream.next();

            // call hooks from the mime type
            if (hooks[ch]) {
                var result = hooks[ch](stream, state);
                if (result !== false) return result;
            }

            if (support.hexNumber &&
      ((ch == "0" && stream.match(/^[xX][0-9a-fA-F]+/))
      || (ch == "x" || ch == "X") && stream.match(/^'[0-9a-fA-F]+'/))) {
                // hex
                // ref: http://dev.mysql.com/doc/refman/5.5/en/hexadecimal-literals.html
                return "number";
            } else if (support.binaryNumber &&
      (((ch == "b" || ch == "B") && stream.match(/^'[01]+'/))
      || (ch == "0" && stream.match(/^b[01]+/)))) {
                // bitstring
                // ref: http://dev.mysql.com/doc/refman/5.5/en/bit-field-literals.html
                return "number";
            } else if (ch.charCodeAt(0) > 47 && ch.charCodeAt(0) < 58) {
                // numbers
                // ref: http://dev.mysql.com/doc/refman/5.5/en/number-literals.html
                stream.match(/^[0-9]*(\.[0-9]+)?([eE][-+]?[0-9]+)?/);
                support.decimallessFloat && stream.match(/^\.(?!\.)/);
                return "number";
            } else if (ch == "?" && (stream.eatSpace() || stream.eol() || stream.eat(";"))) {
                // placeholders
                return "variable-3";
            } else if (ch == "'" || (ch == "\"" && support.doubleQuote)) {
                // strings
                // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
                state.tokenize = tokenLiteral(ch);
                return state.tokenize(stream, state);
            } else if ((((support.nCharCast && (ch == "n" || ch == "N"))
        || (support.charsetCast && ch == "_" && stream.match(/[a-z][a-z0-9]*/i)))
        && (stream.peek() == "'" || stream.peek() == "\""))) {
                // charset casting: _utf8'str', N'str', n'str'
                // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
                return "keyword";
            } else if (/^[\(\),\;\[\]]/.test(ch)) {
                // no highlighting
                return null;
            } else if (support.commentSlashSlash && ch == "/" && stream.eat("/")) {
                // 1-line comment
                stream.skipToEnd();
                return "comment";
            } else if ((support.commentHash && ch == "#")
        || (ch == "-" && stream.eat("-") && (!support.commentSpaceRequired || stream.eat(" ")))) {
                // 1-line comments
                // ref: https://kb.askmonty.org/en/comment-syntax/
                stream.skipToEnd();
                return "comment";
            } else if (ch == "/" && stream.eat("*")) {
                // multi-line comments
                // ref: https://kb.askmonty.org/en/comment-syntax/
                state.tokenize = tokenComment(1);
                return state.tokenize(stream, state);
            } else if (ch == ".") {
                // .1 for 0.1
                if (support.zerolessFloat && stream.match(/^(?:\d+(?:e[+-]?\d+)?)/i)) {return "number";}
                if (stream.match(/^\.+/)) {return null;}
                // .table_name (ODBC)
                // // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
                if (support.ODBCdotTable && stream.match(/^[\w\d_]+/)) {return "variable-2";}
            } else if (operatorChars.test(ch)) {
                // operators
                stream.eatWhile(operatorChars);
                return null;
            } else if (ch == "{" &&
        (stream.match(/^( )*(d|D|t|T|ts|TS)( )*'[^']*'( )*}/) || stream.match(/^( )*(d|D|t|T|ts|TS)( )*"[^"]*"( )*}/))) {
                // dates (weird ODBC syntax)
                // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
                return "number";
            } else {
                stream.eatWhile(/^[_\w\d]/);
                var word = stream.current().toLowerCase();
                // dates (standard SQL syntax)
                // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
                if (dateSQL.hasOwnProperty(word) && (stream.match(/^( )+'[^']*'/) || stream.match(/^( )+"[^"]*"/))) {return "number";}
                if (atoms.hasOwnProperty(word)) return "atom";
                if (builtin.hasOwnProperty(word)) return "builtin";
                if (functions.hasOwnProperty(word) && stream.peek() === "(") return "function";
                if (keywords.hasOwnProperty(word)) return "keyword";
                if (client.hasOwnProperty(word)) return "string-2";
                return null;
            }
        }

        // 'string', with char specified in quote escaped by '\'
        function tokenLiteral (quote) {
            return function (stream, state) {
                var escaped = false, ch;
                while ((ch = stream.next()) != null) {
                    if (ch == quote && !escaped) {
                        state.tokenize = tokenBase;
                        break;
                    }
                    escaped = !escaped && ch == "\\";
                }
                return "string";
            };
        }
        function tokenComment (depth) {
            return function (stream, state) {
                var m = stream.match(/^.*?(\/\*|\*\/)/);
                if (!m) stream.skipToEnd();
                else if (m[1] == "/*") state.tokenize = tokenComment(depth + 1);
                else if (depth > 1) state.tokenize = tokenComment(depth - 1);
                else state.tokenize = tokenBase;
                return "comment";
            };
        }

        function pushContext (stream, state, type) {
            state.context = {
                prev: state.context,
                indent: stream.indentation(),
                col: stream.column(),
                type: type
            };
        }

        function popContext (state) {
            state.indent = state.context.indent;
            state.context = state.context.prev;
        }

        return {
            startState: function () {
                return {tokenize: tokenBase, context: null};
            },

            token: function (stream, state) {
                if (stream.sol()) {
                    if (state.context && state.context.align == null) {state.context.align = false;}
                }
                if (state.tokenize == tokenBase && stream.eatSpace()) return null;

                var style = state.tokenize(stream, state);
                if (style == "comment") return style;

                if (state.context && state.context.align == null) {state.context.align = true;}

                var tok = stream.current();
                if (tok == "(") {pushContext(stream, state, ")");} else if (tok == "[") {pushContext(stream, state, "]");} else if (state.context && state.context.type == tok) {popContext(state);}
                return style;
            },

            indent: function (state, textAfter) {
                var cx = state.context;
                if (!cx) return CodeMirror.Pass;
                var closing = textAfter.charAt(0) == cx.type;
                if (cx.align) return cx.col + (closing ? 0 : 1);
                return cx.indent + (closing ? 0 : config.indentUnit);
            },

            blockCommentStart: "/*",
            blockCommentEnd: "*/",
            lineComment: support.commentSlashSlash ? "//" : support.commentHash ? "#" : "--"
        };
    });

    (function () {
        "use strict";

        // `identifier`
        function hookIdentifier (stream) {
            // MySQL/MariaDB identifiers
            // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
            var ch;
            while ((ch = stream.next()) != null) {
                if (ch == "`" && !stream.eat("`")) return "variable-2";
            }
            stream.backUp(stream.current().length - 1);
            return stream.eatWhile(/\w/) ? "variable-2" : null;
        }

        // "identifier"
        function hookIdentifierDoublequote (stream) {
            // Standard SQL /SQLite identifiers
            // ref: http://web.archive.org/web/20160813185132/http://savage.net.au/SQL/sql-99.bnf.html#delimited%20identifier
            // ref: http://sqlite.org/lang_keywords.html
            var ch;
            while ((ch = stream.next()) != null) {
                if (ch == "\"" && !stream.eat("\"")) return "variable-2";
            }
            stream.backUp(stream.current().length - 1);
            return stream.eatWhile(/\w/) ? "variable-2" : null;
        }

        // variable token
        function hookVar (stream) {
            // variables
            // @@prefix.varName @varName
            // varName can be quoted with ` or ' or "
            // ref: http://dev.mysql.com/doc/refman/5.5/en/user-variables.html
            if (stream.eat("@")) {
                stream.match(/^session\./);
                stream.match(/^local\./);
                stream.match(/^global\./);
            }

            if (stream.eat("'")) {
                stream.match(/^.*'/);
                return "variable-2";
            } else if (stream.eat("\"")) {
                stream.match(/^.*"/);
                return "variable-2";
            } else if (stream.eat("`")) {
                stream.match(/^.*`/);
                return "variable-2";
            } else if (stream.match(/^[0-9a-zA-Z$\.\_]+/)) {
                return "variable-2";
            }
            return null;
        }

        // short client keyword token
        function hookClient (stream) {
            // \N means NULL
            // ref: http://dev.mysql.com/doc/refman/5.5/en/null-values.html
            if (stream.eat("N")) {
                return "atom";
            }
            // \g, etc
            // ref: http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html
            return stream.match(/^[a-zA-Z.#!?]/) ? "variable-2" : null;
        }

        // these keywords are used by all SQL dialects (however, a mode can still overwrite it)
        var sqlKeywords = "alter and as asc between by count create delete desc distinct drop from group having in insert into is join like not on or order select set table union update values where limit ";

        // turn a space-separated list into an array
        function set (str) {
            var obj = {}, words = str.split(" ");
            for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
            return obj;
        }

        // A generic SQL Mode. It's not a standard, it just try to support what is generally supported
        CodeMirror.defineMIME("text/x-sql", {
            name: "sql",
            keywords: set(sqlKeywords + "begin"),
            builtin: set("bool boolean bit blob enum long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision real date datetime year unsigned signed decimal numeric"),
            atoms: set("false true null unknown"),
            operatorChars: /^[*+\-%<>!=]/,
            dateSQL: set("date time timestamp"),
            support: set("ODBCdotTable doubleQuote binaryNumber hexNumber"),
            functions: BI.makeObject(BI.FormulaCollections, true)
        });
    }());

});

/*
  How Properties of Mime Types are used by SQL Mode
  =================================================

  keywords:
    A list of keywords you want to be highlighted.
  builtin:
    A list of builtin types you want to be highlighted (if you want types to be of class "builtin" instead of "keyword").
  operatorChars:
    All characters that must be handled as operators.
  client:
    Commands parsed and executed by the client (not the server).
  support:
    A list of supported syntaxes which are not common, but are supported by more than 1 DBMS.
    * ODBCdotTable: .tableName
    * zerolessFloat: .1
    * doubleQuote
    * nCharCast: N'string'
    * charsetCast: _utf8'string'
    * commentHash: use # char for comments
    * commentSlashSlash: use // for comments
    * commentSpaceRequired: require a space after -- for comments
  atoms:
    Keywords that must be highlighted as atoms,. Some DBMS's support more atoms than others:
    UNKNOWN, INFINITY, UNDERFLOW, NaN...
  dateSQL:
    Used for date/time SQL standard syntax, because not all DBMS's support same temporal types.
*/
/**
 * Created by Windy on 2017/12/15.
 */
BI.SQLEditor = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return $.extend(BI.CodeEditor.superclass._defaultConfig.apply(), {
            baseCls: "bi-sql-editor",
            value: "",
            lineHeight: 2,
            showHint: true,
            supportFunction: false,
            supportParam: false
        });
    },
    _init: function () {
        BI.CodeEditor.superclass._init.apply(this, arguments);
        var o = this.options, self = this;
        this.editor = CodeMirror(this.element[0], {
            mode: "text/x-sql",
            textWrapping: true,
            lineWrapping: true,
            lineNumbers: false
        });
        o.lineHeight === 1 ? this.element.addClass("codemirror-low-line-height") : this.element.addClass("codemirror-high-line-height");

        this.editor.on("change", function (cm, change) {
            self._checkWaterMark();
            if (o.showHint) {
                CodeMirror.showHint(cm, CodeMirror.sqlHint, {
                    completeSingle: false,
                    supportFunction: o.supportFunction
                });
            }
            BI.nextTick(function () {
                self.fireEvent(BI.FormulaEditor.EVENT_CHANGE);
            });
        });

        this.editor.on("focus", function () {
            self._checkWaterMark();
            self.fireEvent(BI.FormulaEditor.EVENT_FOCUS);
        });

        this.editor.on("blur", function () {
            self.fireEvent(BI.FormulaEditor.EVENT_BLUR);
        });

        // 水印
        this.watermark = BI.createWidget({
            type: "bi.label",
            text: BI.i18nText("BI-Please_Enter_SQL"),
            cls: "bi-water-mark",
            whiteSpace: "nowrap",
            textAlign: "left"
        });
        this.watermark.element.bind(
            "mousedown", function (e) {
                self.insertString("");
                self.editor.focus();
                e.stopEvent();
            }
        );
        this.watermark.element.bind("click", function (e) {
            self.editor.focus();
            e.stopEvent();
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.watermark,
                top: 0,
                left: 5
            }]
        });
        if (BI.isKey(o.value)) {
            BI.nextTick(function () {
                self.setValue(o.value);
            });
        }
    },

    insertString: function (str) {
        this.editor.replaceSelection(str);
        this.editor.focus();
    },

    insertParam: function (param) {
        var value = param;
        var from = this.editor.getCursor();
        this.editor.replaceSelection(param);
        var to = this.editor.getCursor();
        var options = {className: "param", atomic: true, replacedWith: $("<span class='param start end' />").text(param)[0]};
        options.value = value;
        this.editor.markText(from, to, options);
        this.editor.replaceSelection(" ");
        this.editor.focus();
    },

    _checkWaterMark: function () {
        var o = this.options;
        if (!this.disabledWaterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
            this.watermark && this.watermark.visible();
        } else {
            this.watermark && this.watermark.invisible();
        }
    },

    _analyzeContent: function (v) {
        var regx = /\$[\{][^\}]*[\}]|[^\$\{]*[^\$\{]/g;
        return v.match(regx);
    },

    getValue: function () {
        var v = this.editor.getValue("\n", function (line) {
            var rawText = line.text, value = line.text, num = 0;
            value.text = rawText;
            _.forEach(_.sortBy(line.markedSpans, "from"), function (i, ms) {
                switch (i.marker.className) {
                    case "param":
                    case "error-param":
                        var fieldNameLength = i.to - i.from;
                        value = value.substr(0, i.from + num) + "$\{" + i.marker.value + "\}" + value.substr(i.to + num, value.length);
                        // 加上${}的偏移
                        num += 3;
                        // 加上实际值和显示值的长度差的偏移
                        num += (i.marker.value.length - fieldNameLength);
                        break;
                }
            });
            return value;
        });
        return v.replaceAll("(\\$\\{.*?\\})\\s", "$1");
    },

    setValue: function (v) {
        var self = this, result, o = this.options;
        this.refresh();
        self.editor.setValue("");
        result = this._analyzeContent(v || "");
        BI.each(result, function (i, item) {
            var fieldRegx = /\$[\{][^\}]*[\}]/;
            var str = item.match(fieldRegx);
            if (BI.isNotEmptyArray(str) && o.supportParam) {
                self.insertParam(str[0].substring(2, item.length - 1));
            } else {
                self.insertString(item);
            }
        });
        this._checkWaterMark();
    },

    refresh: function () {
        var self = this;
        BI.nextTick(function () {
            self.editor.refresh();
        });
    }
});
BI.shortcut("bi.sql_editor", BI.SQLEditor);
// Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ┌────────────────────────────────────────────────────────────┐ \\
// │ Eve 0.4.2 - JavaScript Events Library                      │ \\
// ├────────────────────────────────────────────────────────────┤ \\
// │ Author Dmitry Baranovskiy (http://dmitry.baranovskiy.com/) │ \\
// └────────────────────────────────────────────────────────────┘ \\
(function (glob, factory) {
    if (typeof define === "function" && define.amd) {
        define("eve", function() {
            return factory();
        });
    } else if (typeof exports === "object") {
        module.exports = factory();
    } else {
        glob.eve = factory();
    }
}(this, function(){
    var version = "0.4.2",
        has = "hasOwnProperty",
        separator = /[\.\/]/,
        wildcard = "*",
        fun = function () {},
        numsort = function (a, b) {
            return a - b;
        },
        current_event,
        stop,
        events = {n: {}},
    /*\
     * eve
     [ method ]

     * Fires event with given `name`, given scope and other parameters.

     > Arguments

     - name (string) name of the *event*, dot (`.`) or slash (`/`) separated
     - scope (object) context for the event handlers
     - varargs (...) the rest of arguments will be sent to event handlers

     = (object) array of returned values from the listeners
     \*/
        eve = function (name, scope) {
            name = String(name);
            var e = events,
                oldstop = stop,
                args = Array.prototype.slice.call(arguments, 2),
                listeners = eve.listeners(name),
                z = 0,
                f = false,
                l,
                indexed = [],
                queue = {},
                out = [],
                ce = current_event,
                errors = [];
            current_event = name;
            stop = 0;
            for (var i = 0, ii = listeners.length; i < ii; i++) if ("zIndex" in listeners[i]) {
                indexed.push(listeners[i].zIndex);
                if (listeners[i].zIndex < 0) {
                    queue[listeners[i].zIndex] = listeners[i];
                }
            }
            indexed.sort(numsort);
            while (indexed[z] < 0) {
                l = queue[indexed[z++]];
                out.push(l.apply(scope, args));
                if (stop) {
                    stop = oldstop;
                    return out;
                }
            }
            for (i = 0; i < ii; i++) {
                l = listeners[i];
                if ("zIndex" in l) {
                    if (l.zIndex == indexed[z]) {
                        out.push(l.apply(scope, args));
                        if (stop) {
                            break;
                        }
                        do {
                            z++;
                            l = queue[indexed[z]];
                            l && out.push(l.apply(scope, args));
                            if (stop) {
                                break;
                            }
                        } while (l)
                    } else {
                        queue[l.zIndex] = l;
                    }
                } else {
                    out.push(l.apply(scope, args));
                    if (stop) {
                        break;
                    }
                }
            }
            stop = oldstop;
            current_event = ce;
            return out.length ? out : null;
        };
    // Undocumented. Debug only.
    eve._events = events;
    /*\
     * eve.listeners
     [ method ]

     * Internal method which gives you array of all event handlers that will be triggered by the given `name`.

     > Arguments

     - name (string) name of the event, dot (`.`) or slash (`/`) separated

     = (array) array of event handlers
     \*/
    eve.listeners = function (name) {
        var names = name.split(separator),
            e = events,
            item,
            items,
            k,
            i,
            ii,
            j,
            jj,
            nes,
            es = [e],
            out = [];
        for (i = 0, ii = names.length; i < ii; i++) {
            nes = [];
            for (j = 0, jj = es.length; j < jj; j++) {
                e = es[j].n;
                items = [e[names[i]], e[wildcard]];
                k = 2;
                while (k--) {
                    item = items[k];
                    if (item) {
                        nes.push(item);
                        out = out.concat(item.f || []);
                    }
                }
            }
            es = nes;
        }
        return out;
    };

    /*\
     * eve.on
     [ method ]
     **
     * Binds given event handler with a given name. You can use wildcards “`*`” for the names:
     | eve.on("*.under.*", f);
     | eve("mouse.under.floor"); // triggers f
     * Use @eve to trigger the listener.
     **
     > Arguments
     **
     - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards
     - f (function) event handler function
     **
     = (function) returned function accepts a single numeric parameter that represents z-index of the handler. It is an optional feature and only used when you need to ensure that some subset of handlers will be invoked in a given order, despite of the order of assignment.
     > Example:
     | eve.on("mouse", eatIt)(2);
     | eve.on("mouse", scream);
     | eve.on("mouse", catchIt)(1);
     * This will ensure that `catchIt()` function will be called before `eatIt()`.
     *
     * If you want to put your handler before non-indexed handlers, specify a negative value.
     * Note: I assume most of the time you don’t need to worry about z-index, but it’s nice to have this feature “just in case”.
     \*/
    eve.on = function (name, f) {
        name = String(name);
        if (typeof f != "function") {
            return function () {};
        }
        var names = name.split(separator),
            e = events;
        for (var i = 0, ii = names.length; i < ii; i++) {
            e = e.n;
            e = e.hasOwnProperty(names[i]) && e[names[i]] || (e[names[i]] = {n: {}});
        }
        e.f = e.f || [];
        for (i = 0, ii = e.f.length; i < ii; i++) if (e.f[i] == f) {
            return fun;
        }
        e.f.push(f);
        return function (zIndex) {
            if (+zIndex == +zIndex) {
                f.zIndex = +zIndex;
            }
        };
    };
    /*\
     * eve.f
     [ method ]
     **
     * Returns function that will fire given event with optional arguments.
     * Arguments that will be passed to the result function will be also
     * concated to the list of final arguments.
     | el.onclick = eve.f("click", 1, 2);
     | eve.on("click", function (a, b, c) {
     |     console.log(a, b, c); // 1, 2, [event object]
     | });
     > Arguments
     - event (string) event name
     - varargs (…) and any other arguments
     = (function) possible event handler function
     \*/
    eve.f = function (event) {
        var attrs = [].slice.call(arguments, 1);
        return function () {
            eve.apply(null, [event, null].concat(attrs).concat([].slice.call(arguments, 0)));
        };
    };
    /*\
     * eve.stop
     [ method ]
     **
     * Is used inside an event handler to stop the event, preventing any subsequent listeners from firing.
     \*/
    eve.stop = function () {
        stop = 1;
    };
    /*\
     * eve.nt
     [ method ]
     **
     * Could be used inside event handler to figure out actual name of the event.
     **
     > Arguments
     **
     - subname (string) #optional subname of the event
     **
     = (string) name of the event, if `subname` is not specified
     * or
     = (boolean) `true`, if current event’s name contains `subname`
     \*/
    eve.nt = function (subname) {
        if (subname) {
            return new RegExp("(?:\\.|\\/|^)" + subname + "(?:\\.|\\/|$)").test(current_event);
        }
        return current_event;
    };
    /*\
     * eve.nts
     [ method ]
     **
     * Could be used inside event handler to figure out actual name of the event.
     **
     **
     = (array) names of the event
     \*/
    eve.nts = function () {
        return current_event.split(separator);
    };
    /*\
     * eve.off
     [ method ]
     **
     * Removes given function from the list of event listeners assigned to given name.
     * If no arguments specified all the events will be cleared.
     **
     > Arguments
     **
     - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards
     - f (function) event handler function
     \*/
    /*\
     * eve.unbind
     [ method ]
     **
     * See @eve.off
     \*/
    eve.off = eve.unbind = function (name, f) {
        if (!name) {
            eve._events = events = {n: {}};
            return;
        }
        var names = name.split(separator),
            e,
            key,
            splice,
            i, ii, j, jj,
            cur = [events];
        for (i = 0, ii = names.length; i < ii; i++) {
            for (j = 0; j < cur.length; j += splice.length - 2) {
                splice = [j, 1];
                e = cur[j].n;
                if (names[i] != wildcard) {
                    if (e[names[i]]) {
                        splice.push(e[names[i]]);
                    }
                } else {
                    for (key in e) if (e[has](key)) {
                        splice.push(e[key]);
                    }
                }
                cur.splice.apply(cur, splice);
            }
        }
        for (i = 0, ii = cur.length; i < ii; i++) {
            e = cur[i];
            while (e.n) {
                if (f) {
                    if (e.f) {
                        for (j = 0, jj = e.f.length; j < jj; j++) if (e.f[j] == f) {
                            e.f.splice(j, 1);
                            break;
                        }
                        !e.f.length && delete e.f;
                    }
                    for (key in e.n) if (e.n[has](key) && e.n[key].f) {
                        var funcs = e.n[key].f;
                        for (j = 0, jj = funcs.length; j < jj; j++) if (funcs[j] == f) {
                            funcs.splice(j, 1);
                            break;
                        }
                        !funcs.length && delete e.n[key].f;
                    }
                } else {
                    delete e.f;
                    for (key in e.n) if (e.n[has](key) && e.n[key].f) {
                        delete e.n[key].f;
                    }
                }
                e = e.n;
            }
        }
    };
    /*\
     * eve.once
     [ method ]
     **
     * Binds given event handler with a given name to only run once then unbind itself.
     | eve.once("login", f);
     | eve("login"); // triggers f
     | eve("login"); // no listeners
     * Use @eve to trigger the listener.
     **
     > Arguments
     **
     - name (string) name of the event, dot (`.`) or slash (`/`) separated, with optional wildcards
     - f (function) event handler function
     **
     = (function) same return function as @eve.on
     \*/
    eve.once = function (name, f) {
        var f2 = function () {
            eve.unbind(name, f2);
            return f.apply(this, arguments);
        };
        return eve.on(name, f2);
    };
    /*\
     * eve.version
     [ property (string) ]
     **
     * Current version of the library.
     \*/
    eve.version = version;
    eve.toString = function () {
        return "You are running Eve " + version;
    };

    return eve;
}));

// ┌────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël 2.1.4 - JavaScript Vector Library                      │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Core Module                                                        │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license.│ \\
// └────────────────────────────────────────────────────────────────────┘ \\

(function (glob, factory) {
    if (typeof define === "function" && define.amd) {
        define("raphael.core", ["eve"], function(eve) {
            return factory(eve);
        });
    } else if (typeof exports === "object") {
        module.exports = factory(require("eve"));
    } else {
        glob.Raphael = factory(glob.eve);
    }
}(this, function (eve) {
    /*\
     * Raphael
     [ method ]
     **
     * Creates a canvas object on which to draw.
     * You must do this first, as all future calls to drawing methods
     * from this instance will be bound to this canvas.
     > Parameters
     **
     - container (HTMLElement|string) DOM element or its ID which is going to be a parent for drawing surface
     - width (number)
     - height (number)
     - callback (function) #optional callback function which is going to be executed in the context of newly created paper
     * or
     - x (number)
     - y (number)
     - width (number)
     - height (number)
     - callback (function) #optional callback function which is going to be executed in the context of newly created paper
     * or
     - all (array) (first 3 or 4 elements in the array are equal to [containerID, width, height] or [x, y, width, height]. The rest are element descriptions in format {type: type, <attributes>}). See @Paper.add.
     - callback (function) #optional callback function which is going to be executed in the context of newly created paper
     * or
     - onReadyCallback (function) function that is going to be called on DOM ready event. You can also subscribe to this event via Eve’s “DOMLoad” event. In this case method returns `undefined`.
     = (object) @Paper
     > Usage
     | // Each of the following examples create a canvas
     | // that is 320px wide by 200px high.
     | // Canvas is created at the viewport’s 10,50 coordinate.
     | var paper = Raphael(10, 50, 320, 200);
     | // Canvas is created at the top left corner of the #notepad element
     | // (or its top right corner in dir="rtl" elements)
     | var paper = Raphael(document.getElementById("notepad"), 320, 200);
     | // Same as above
     | var paper = Raphael("notepad", 320, 200);
     | // Image dump
     | var set = Raphael(["notepad", 320, 200, {
     |     type: "rect",
     |     x: 10,
     |     y: 10,
     |     width: 25,
     |     height: 25,
     |     stroke: "#f00"
     | }, {
     |     type: "text",
     |     x: 30,
     |     y: 40,
     |     text: "Dump"
     | }]);
     \*/
    function R(first) {
        if (R.is(first, "function")) {
            return loaded ? first() : eve.on("raphael.DOMload", first);
        } else if (R.is(first, array)) {
            return R._engine.create[apply](R, first.splice(0, 3 + R.is(first[0], nu))).add(first);
        } else {
            var args = Array.prototype.slice.call(arguments, 0);
            if (R.is(args[args.length - 1], "function")) {
                var f = args.pop();
                return loaded ? f.call(R._engine.create[apply](R, args)) : eve.on("raphael.DOMload", function () {
                    f.call(R._engine.create[apply](R, args));
                });
            } else {
                return R._engine.create[apply](R, arguments);
            }
        }
    }
    R.version = "2.1.4";
    R.eve = eve;
    var loaded,
        separator = /[, ]+/,
        elements = {circle: 1, rect: 1, path: 1, ellipse: 1, text: 1, image: 1},
        formatrg = /\{(\d+)\}/g,
        proto = "prototype",
        has = "hasOwnProperty",
        g = {
            doc: document,
            win: window
        },
        oldRaphael = {
            was: Object.prototype[has].call(g.win, "Raphael"),
            is: g.win.Raphael
        },
        Paper = function () {
            /*\
             * Paper.ca
             [ property (object) ]
             **
             * Shortcut for @Paper.customAttributes
             \*/
            /*\
             * Paper.customAttributes
             [ property (object) ]
             **
             * If you have a set of attributes that you would like to represent
             * as a function of some number you can do it easily with custom attributes:
             > Usage
             | paper.customAttributes.hue = function (num) {
             |     num = num % 1;
             |     return {fill: "hsb(" + num + ", 0.75, 1)"};
             | };
             | // Custom attribute “hue” will change fill
             | // to be given hue with fixed saturation and brightness.
             | // Now you can use it like this:
             | var c = paper.circle(10, 10, 10).attr({hue: .45});
             | // or even like this:
             | c.animate({hue: 1}, 1e3);
             |
             | // You could also create custom attribute
             | // with multiple parameters:
             | paper.customAttributes.hsb = function (h, s, b) {
             |     return {fill: "hsb(" + [h, s, b].join(",") + ")"};
             | };
             | c.attr({hsb: "0.5 .8 1"});
             | c.animate({hsb: [1, 0, 0.5]}, 1e3);
             \*/
            this.ca = this.customAttributes = {};
        },
        paperproto,
        appendChild = "appendChild",
        apply = "apply",
        concat = "concat",
        supportsTouch = ('ontouchstart' in g.win) || g.win.DocumentTouch && g.doc instanceof DocumentTouch, //taken from Modernizr touch test
        E = "",
        S = " ",
        Str = String,
        split = "split",
        events = "click dblclick mousedown mousemove mouseout mouseover mouseup touchstart touchmove touchend touchcancel"[split](S),
        touchMap = {
            mousedown: "touchstart",
            mousemove: "touchmove",
            mouseup: "touchend"
        },
        lowerCase = Str.prototype.toLowerCase,
        math = Math,
        mmax = math.max,
        mmin = math.min,
        abs = math.abs,
        pow = math.pow,
        PI = math.PI,
        nu = "number",
        string = "string",
        array = "array",
        toString = "toString",
        fillString = "fill",
        objectToString = Object.prototype.toString,
        paper = {},
        push = "push",
        ISURL = R._ISURL = /^url\(['"]?(.+?)['"]?\)$/i,
        colourRegExp = /^\s*((#[a-f\d]{6})|(#[a-f\d]{3})|rgba?\(\s*([\d\.]+%?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+%?(?:\s*,\s*[\d\.]+%?)?)\s*\)|hsba?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?)%?\s*\)|hsla?\(\s*([\d\.]+(?:deg|\xb0|%)?\s*,\s*[\d\.]+%?\s*,\s*[\d\.]+(?:%?\s*,\s*[\d\.]+)?)%?\s*\))\s*$/i,
        isnan = {"NaN": 1, "Infinity": 1, "-Infinity": 1},
        bezierrg = /^(?:cubic-)?bezier\(([^,]+),([^,]+),([^,]+),([^\)]+)\)/,
        round = math.round,
        setAttribute = "setAttribute",
        toFloat = parseFloat,
        toInt = parseInt,
        upperCase = Str.prototype.toUpperCase,
        availableAttrs = R._availableAttrs = {
            "arrow-end": "none",
            "arrow-start": "none",
            blur: 0,
            "clip-rect": "0 0 1e9 1e9",
            cursor: "default",
            cx: 0,
            cy: 0,
            fill: "#fff",
            "fill-opacity": 1,
            font: '10px "Arial"',
            "font-family": '"Arial"',
            "font-size": "10",
            "font-style": "normal",
            "font-weight": 400,
            gradient: 0,
            height: 0,
            href: "http://raphaeljs.com/",
            "letter-spacing": 0,
            opacity: 1,
            path: "M0,0",
            r: 0,
            rx: 0,
            ry: 0,
            src: "",
            stroke: "#000",
            "stroke-dasharray": "",
            "stroke-linecap": "butt",
            "stroke-linejoin": "butt",
            "stroke-miterlimit": 0,
            "stroke-opacity": 1,
            "stroke-width": 1,
            target: "_blank",
            "text-anchor": "middle",
            title: "Raphael",
            transform: "",
            width: 0,
            x: 0,
            y: 0
        },
        availableAnimAttrs = R._availableAnimAttrs = {
            blur: nu,
            "clip-rect": "csv",
            cx: nu,
            cy: nu,
            fill: "colour",
            "fill-opacity": nu,
            "font-size": nu,
            height: nu,
            opacity: nu,
            path: "path",
            r: nu,
            rx: nu,
            ry: nu,
            stroke: "colour",
            "stroke-opacity": nu,
            "stroke-width": nu,
            transform: "transform",
            width: nu,
            x: nu,
            y: nu
        },
        whitespace = /[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]/g,
        commaSpaces = /[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*,[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*/,
        hsrg = {hs: 1, rg: 1},
        p2s = /,?([achlmqrstvxz]),?/gi,
        pathCommand = /([achlmrqstvz])[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029,]*((-?\d*\.?\d*(?:e[\-+]?\d+)?[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*,?[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*)+)/ig,
        tCommand = /([rstm])[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029,]*((-?\d*\.?\d*(?:e[\-+]?\d+)?[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*,?[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*)+)/ig,
        pathValues = /(-?\d*\.?\d*(?:e[\-+]?\d+)?)[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*,?[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*/ig,
        radial_gradient = R._radial_gradient = /^r(?:\(([^,]+?)[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*,[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000\u2028\u2029]*([^\)]+?)\))?/,
        eldata = {},
        sortByKey = function (a, b) {
            return a.key - b.key;
        },
        sortByNumber = function (a, b) {
            return toFloat(a) - toFloat(b);
        },
        fun = function () {},
        pipe = function (x) {
            return x;
        },
        rectPath = R._rectPath = function (x, y, w, h, r) {
            if (r) {
                return [["M", x + r, y], ["l", w - r * 2, 0], ["a", r, r, 0, 0, 1, r, r], ["l", 0, h - r * 2], ["a", r, r, 0, 0, 1, -r, r], ["l", r * 2 - w, 0], ["a", r, r, 0, 0, 1, -r, -r], ["l", 0, r * 2 - h], ["a", r, r, 0, 0, 1, r, -r], ["z"]];
            }
            return [["M", x, y], ["l", w, 0], ["l", 0, h], ["l", -w, 0], ["z"]];
        },
        ellipsePath = function (x, y, rx, ry) {
            if (ry == null) {
                ry = rx;
            }
            return [["M", x, y], ["m", 0, -ry], ["a", rx, ry, 0, 1, 1, 0, 2 * ry], ["a", rx, ry, 0, 1, 1, 0, -2 * ry], ["z"]];
        },
        getPath = R._getPath = {
            path: function (el) {
                return el.attr("path");
            },
            circle: function (el) {
                var a = el.attrs;
                return ellipsePath(a.cx, a.cy, a.r);
            },
            ellipse: function (el) {
                var a = el.attrs;
                return ellipsePath(a.cx, a.cy, a.rx, a.ry);
            },
            rect: function (el) {
                var a = el.attrs;
                return rectPath(a.x, a.y, a.width, a.height, a.r);
            },
            image: function (el) {
                var a = el.attrs;
                return rectPath(a.x, a.y, a.width, a.height);
            },
            text: function (el) {
                var bbox = el._getBBox();
                return rectPath(bbox.x, bbox.y, bbox.width, bbox.height);
            },
            set : function(el) {
                var bbox = el._getBBox();
                return rectPath(bbox.x, bbox.y, bbox.width, bbox.height);
            }
        },
    /*\
     * Raphael.mapPath
     [ method ]
     **
     * Transform the path string with given matrix.
     > Parameters
     - path (string) path string
     - matrix (object) see @Matrix
     = (string) transformed path string
     \*/
        mapPath = R.mapPath = function (path, matrix) {
            if (!matrix) {
                return path;
            }
            var x, y, i, j, ii, jj, pathi;
            path = path2curve(path);
            for (i = 0, ii = path.length; i < ii; i++) {
                pathi = path[i];
                for (j = 1, jj = pathi.length; j < jj; j += 2) {
                    x = matrix.x(pathi[j], pathi[j + 1]);
                    y = matrix.y(pathi[j], pathi[j + 1]);
                    pathi[j] = x;
                    pathi[j + 1] = y;
                }
            }
            return path;
        };

    R._g = g;
    /*\
     * Raphael.type
     [ property (string) ]
     **
     * Can be “SVG”, “VML” or empty, depending on browser support.
     \*/
    R.type = (g.win.SVGAngle || g.doc.implementation.hasFeature("http://www.w3.org/TR/SVG11/feature#BasicStructure", "1.1") ? "SVG" : "VML");
    if (R.type == "VML") {
        var d = g.doc.createElement("div"),
            b;
        d.innerHTML = '<v:shape adj="1"/>';
        b = d.firstChild;
        b.style.behavior = "url(#default#VML)";
        if (!(b && typeof b.adj == "object")) {
            return (R.type = E);
        }
        d = null;
    }
    /*\
     * Raphael.svg
     [ property (boolean) ]
     **
     * `true` if browser supports SVG.
     \*/
    /*\
     * Raphael.vml
     [ property (boolean) ]
     **
     * `true` if browser supports VML.
     \*/
    R.svg = !(R.vml = R.type == "VML");
    R._Paper = Paper;
    /*\
     * Raphael.fn
     [ property (object) ]
     **
     * You can add your own method to the canvas. For example if you want to draw a pie chart,
     * you can create your own pie chart function and ship it as a Raphaël plugin. To do this
     * you need to extend the `Raphael.fn` object. You should modify the `fn` object before a
     * Raphaël instance is created, otherwise it will take no effect. Please note that the
     * ability for namespaced plugins was removed in Raphael 2.0. It is up to the plugin to
     * ensure any namespacing ensures proper context.
     > Usage
     | Raphael.fn.arrow = function (x1, y1, x2, y2, size) {
     |     return this.path( ... );
     | };
     | // or create namespace
     | Raphael.fn.mystuff = {
     |     arrow: function () {…},
     |     star: function () {…},
     |     // etc…
     | };
     | var paper = Raphael(10, 10, 630, 480);
     | // then use it
     | paper.arrow(10, 10, 30, 30, 5).attr({fill: "#f00"});
     | paper.mystuff.arrow();
     | paper.mystuff.star();
     \*/
    R.fn = paperproto = Paper.prototype = R.prototype;
    R._id = 0;
    R._oid = 0;
    /*\
     * Raphael.is
     [ method ]
     **
     * Handful of replacements for `typeof` operator.
     > Parameters
     - o (…) any object or primitive
     - type (string) name of the type, i.e. “string”, “function”, “number”, etc.
     = (boolean) is given value is of given type
     \*/
    R.is = function (o, type) {
        type = lowerCase.call(type);
        if (type == "finite") {
            return !isnan[has](+o);
        }
        if (type == "array") {
            return o instanceof Array;
        }
        return  (type == "null" && o === null) ||
            (type == typeof o && o !== null) ||
            (type == "object" && o === Object(o)) ||
            (type == "array" && Array.isArray && Array.isArray(o)) ||
            objectToString.call(o).slice(8, -1).toLowerCase() == type;
    };

    function clone(obj) {
        if (typeof obj == "function" || Object(obj) !== obj) {
            return obj;
        }
        var res = new obj.constructor;
        for (var key in obj) if (obj[has](key)) {
            res[key] = clone(obj[key]);
        }
        return res;
    }

    /*\
     * Raphael.angle
     [ method ]
     **
     * Returns angle between two or three points
     > Parameters
     - x1 (number) x coord of first point
     - y1 (number) y coord of first point
     - x2 (number) x coord of second point
     - y2 (number) y coord of second point
     - x3 (number) #optional x coord of third point
     - y3 (number) #optional y coord of third point
     = (number) angle in degrees.
     \*/
    R.angle = function (x1, y1, x2, y2, x3, y3) {
        if (x3 == null) {
            var x = x1 - x2,
                y = y1 - y2;
            if (!x && !y) {
                return 0;
            }
            return (180 + math.atan2(-y, -x) * 180 / PI + 360) % 360;
        } else {
            return R.angle(x1, y1, x3, y3) - R.angle(x2, y2, x3, y3);
        }
    };
    /*\
     * Raphael.rad
     [ method ]
     **
     * Transform angle to radians
     > Parameters
     - deg (number) angle in degrees
     = (number) angle in radians.
     \*/
    R.rad = function (deg) {
        return deg % 360 * PI / 180;
    };
    /*\
     * Raphael.deg
     [ method ]
     **
     * Transform angle to degrees
     > Parameters
     - rad (number) angle in radians
     = (number) angle in degrees.
     \*/
    R.deg = function (rad) {
        return Math.round ((rad * 180 / PI% 360)* 1000) / 1000;
    };
    /*\
     * Raphael.snapTo
     [ method ]
     **
     * Snaps given value to given grid.
     > Parameters
     - values (array|number) given array of values or step of the grid
     - value (number) value to adjust
     - tolerance (number) #optional tolerance for snapping. Default is `10`.
     = (number) adjusted value.
     \*/
    R.snapTo = function (values, value, tolerance) {
        tolerance = R.is(tolerance, "finite") ? tolerance : 10;
        if (R.is(values, array)) {
            var i = values.length;
            while (i--) if (abs(values[i] - value) <= tolerance) {
                return values[i];
            }
        } else {
            values = +values;
            var rem = value % values;
            if (rem < tolerance) {
                return value - rem;
            }
            if (rem > values - tolerance) {
                return value - rem + values;
            }
        }
        return value;
    };

    /*\
     * Raphael.createUUID
     [ method ]
     **
     * Returns RFC4122, version 4 ID
     \*/
    var createUUID = R.createUUID = (function (uuidRegEx, uuidReplacer) {
        return function () {
            return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(uuidRegEx, uuidReplacer).toUpperCase();
        };
    })(/[xy]/g, function (c) {
        var r = math.random() * 16 | 0,
            v = c == "x" ? r : (r & 3 | 8);
        return v.toString(16);
    });

    /*\
     * Raphael.setWindow
     [ method ]
     **
     * Used when you need to draw in `&lt;iframe>`. Switched window to the iframe one.
     > Parameters
     - newwin (window) new window object
     \*/
    R.setWindow = function (newwin) {
        eve("raphael.setWindow", R, g.win, newwin);
        g.win = newwin;
        g.doc = g.win.document;
        if (R._engine.initWin) {
            R._engine.initWin(g.win);
        }
    };
    var toHex = function (color) {
            if (R.vml) {
                // http://dean.edwards.name/weblog/2009/10/convert-any-colour-value-to-hex-in-msie/
                var trim = /^\s+|\s+$/g;
                var bod;
                try {
                    var docum = new ActiveXObject("htmlfile");
                    docum.write("<body>");
                    docum.close();
                    bod = docum.body;
                } catch(e) {
                    bod = createPopup().document.body;
                }
                var range = bod.createTextRange();
                toHex = cacher(function (color) {
                    try {
                        bod.style.color = Str(color).replace(trim, E);
                        var value = range.queryCommandValue("ForeColor");
                        value = ((value & 255) << 16) | (value & 65280) | ((value & 16711680) >>> 16);
                        return "#" + ("000000" + value.toString(16)).slice(-6);
                    } catch(e) {
                        return "none";
                    }
                });
            } else {
                var i = g.doc.createElement("i");
                i.title = "Rapha\xebl Colour Picker";
                i.style.display = "none";
                g.doc.body.appendChild(i);
                toHex = cacher(function (color) {
                    i.style.color = color;
                    return g.doc.defaultView.getComputedStyle(i, E).getPropertyValue("color");
                });
            }
            return toHex(color);
        },
        hsbtoString = function () {
            return "hsb(" + [this.h, this.s, this.b] + ")";
        },
        hsltoString = function () {
            return "hsl(" + [this.h, this.s, this.l] + ")";
        },
        rgbtoString = function () {
            return this.hex;
        },
        prepareRGB = function (r, g, b) {
            if (g == null && R.is(r, "object") && "r" in r && "g" in r && "b" in r) {
                b = r.b;
                g = r.g;
                r = r.r;
            }
            if (g == null && R.is(r, string)) {
                var clr = R.getRGB(r);
                r = clr.r;
                g = clr.g;
                b = clr.b;
            }
            if (r > 1 || g > 1 || b > 1) {
                r /= 255;
                g /= 255;
                b /= 255;
            }

            return [r, g, b];
        },
        packageRGB = function (r, g, b, o) {
            r *= 255;
            g *= 255;
            b *= 255;
            var rgb = {
                r: r,
                g: g,
                b: b,
                hex: R.rgb(r, g, b),
                toString: rgbtoString
            };
            R.is(o, "finite") && (rgb.opacity = o);
            return rgb;
        };

    /*\
     * Raphael.color
     [ method ]
     **
     * Parses the color string and returns object with all values for the given color.
     > Parameters
     - clr (string) color string in one of the supported formats (see @Raphael.getRGB)
     = (object) Combined RGB & HSB object in format:
     o {
     o     r (number) red,
     o     g (number) green,
     o     b (number) blue,
     o     hex (string) color in HTML/CSS format: #••••••,
     o     error (boolean) `true` if string can’t be parsed,
     o     h (number) hue,
     o     s (number) saturation,
     o     v (number) value (brightness),
     o     l (number) lightness
     o }
     \*/
    R.color = function (clr) {
        var rgb;
        if (R.is(clr, "object") && "h" in clr && "s" in clr && "b" in clr) {
            rgb = R.hsb2rgb(clr);
            clr.r = rgb.r;
            clr.g = rgb.g;
            clr.b = rgb.b;
            clr.hex = rgb.hex;
        } else if (R.is(clr, "object") && "h" in clr && "s" in clr && "l" in clr) {
            rgb = R.hsl2rgb(clr);
            clr.r = rgb.r;
            clr.g = rgb.g;
            clr.b = rgb.b;
            clr.hex = rgb.hex;
        } else {
            if (R.is(clr, "string")) {
                clr = R.getRGB(clr);
            }
            if (R.is(clr, "object") && "r" in clr && "g" in clr && "b" in clr) {
                rgb = R.rgb2hsl(clr);
                clr.h = rgb.h;
                clr.s = rgb.s;
                clr.l = rgb.l;
                rgb = R.rgb2hsb(clr);
                clr.v = rgb.b;
            } else {
                clr = {hex: "none"};
                clr.r = clr.g = clr.b = clr.h = clr.s = clr.v = clr.l = -1;
            }
        }
        clr.toString = rgbtoString;
        return clr;
    };
    /*\
     * Raphael.hsb2rgb
     [ method ]
     **
     * Converts HSB values to RGB object.
     > Parameters
     - h (number) hue
     - s (number) saturation
     - v (number) value or brightness
     = (object) RGB object in format:
     o {
     o     r (number) red,
     o     g (number) green,
     o     b (number) blue,
     o     hex (string) color in HTML/CSS format: #••••••
     o }
     \*/
    R.hsb2rgb = function (h, s, v, o) {
        if (this.is(h, "object") && "h" in h && "s" in h && "b" in h) {
            v = h.b;
            s = h.s;
            o = h.o;
            h = h.h;
        }
        h *= 360;
        var R, G, B, X, C;
        h = (h % 360) / 60;
        C = v * s;
        X = C * (1 - abs(h % 2 - 1));
        R = G = B = v - C;

        h = ~~h;
        R += [C, X, 0, 0, X, C][h];
        G += [X, C, C, X, 0, 0][h];
        B += [0, 0, X, C, C, X][h];
        return packageRGB(R, G, B, o);
    };
    /*\
     * Raphael.hsl2rgb
     [ method ]
     **
     * Converts HSL values to RGB object.
     > Parameters
     - h (number) hue
     - s (number) saturation
     - l (number) luminosity
     = (object) RGB object in format:
     o {
     o     r (number) red,
     o     g (number) green,
     o     b (number) blue,
     o     hex (string) color in HTML/CSS format: #••••••
     o }
     \*/
    R.hsl2rgb = function (h, s, l, o) {
        if (this.is(h, "object") && "h" in h && "s" in h && "l" in h) {
            l = h.l;
            s = h.s;
            h = h.h;
        }
        if (h > 1 || s > 1 || l > 1) {
            h /= 360;
            s /= 100;
            l /= 100;
        }
        h *= 360;
        var R, G, B, X, C;
        h = (h % 360) / 60;
        C = 2 * s * (l < .5 ? l : 1 - l);
        X = C * (1 - abs(h % 2 - 1));
        R = G = B = l - C / 2;

        h = ~~h;
        R += [C, X, 0, 0, X, C][h];
        G += [X, C, C, X, 0, 0][h];
        B += [0, 0, X, C, C, X][h];
        return packageRGB(R, G, B, o);
    };
    /*\
     * Raphael.rgb2hsb
     [ method ]
     **
     * Converts RGB values to HSB object.
     > Parameters
     - r (number) red
     - g (number) green
     - b (number) blue
     = (object) HSB object in format:
     o {
     o     h (number) hue
     o     s (number) saturation
     o     b (number) brightness
     o }
     \*/
    R.rgb2hsb = function (r, g, b) {
        b = prepareRGB(r, g, b);
        r = b[0];
        g = b[1];
        b = b[2];

        var H, S, V, C;
        V = mmax(r, g, b);
        C = V - mmin(r, g, b);
        H = (C == 0 ? null :
                V == r ? (g - b) / C :
                    V == g ? (b - r) / C + 2 :
                    (r - g) / C + 4
        );
        H = ((H + 360) % 6) * 60 / 360;
        S = C == 0 ? 0 : C / V;
        return {h: H, s: S, b: V, toString: hsbtoString};
    };
    /*\
     * Raphael.rgb2hsl
     [ method ]
     **
     * Converts RGB values to HSL object.
     > Parameters
     - r (number) red
     - g (number) green
     - b (number) blue
     = (object) HSL object in format:
     o {
     o     h (number) hue
     o     s (number) saturation
     o     l (number) luminosity
     o }
     \*/
    R.rgb2hsl = function (r, g, b) {
        b = prepareRGB(r, g, b);
        r = b[0];
        g = b[1];
        b = b[2];

        var H, S, L, M, m, C;
        M = mmax(r, g, b);
        m = mmin(r, g, b);
        C = M - m;
        H = (C == 0 ? null :
            M == r ? (g - b) / C :
                M == g ? (b - r) / C + 2 :
                (r - g) / C + 4);
        H = ((H + 360) % 6) * 60 / 360;
        L = (M + m) / 2;
        S = (C == 0 ? 0 :
            L < .5 ? C / (2 * L) :
            C / (2 - 2 * L));
        return {h: H, s: S, l: L, toString: hsltoString};
    };
    R._path2string = function () {
        return this.join(",").replace(p2s, "$1");
    };
    function repush(array, item) {
        for (var i = 0, ii = array.length; i < ii; i++) if (array[i] === item) {
            return array.push(array.splice(i, 1)[0]);
        }
    }
    function cacher(f, scope, postprocessor) {
        function newf() {
            var arg = Array.prototype.slice.call(arguments, 0),
                args = arg.join("\u2400"),
                cache = newf.cache = newf.cache || {},
                count = newf.count = newf.count || [];
            if (cache[has](args)) {
                repush(count, args);
                return postprocessor ? postprocessor(cache[args]) : cache[args];
            }
            count.length >= 1e3 && delete cache[count.shift()];
            count.push(args);
            cache[args] = f[apply](scope, arg);
            return postprocessor ? postprocessor(cache[args]) : cache[args];
        }
        return newf;
    }

    var preload = R._preload = function (src, f) {
        var img = g.doc.createElement("img");
        img.style.cssText = "position:absolute;left:-9999em;top:-9999em";
        img.onload = function () {
            f.call(this);
            this.onload = null;
            g.doc.body.removeChild(this);
        };
        img.onerror = function () {
            g.doc.body.removeChild(this);
        };
        g.doc.body.appendChild(img);
        img.src = src;
    };

    function clrToString() {
        return this.hex;
    }

    /*\
     * Raphael.getRGB
     [ method ]
     **
     * Parses colour string as RGB object
     > Parameters
     - colour (string) colour string in one of formats:
     # <ul>
     #     <li>Colour name (“<code>red</code>”, “<code>green</code>”, “<code>cornflowerblue</code>”, etc)</li>
     #     <li>#••• — shortened HTML colour: (“<code>#000</code>”, “<code>#fc0</code>”, etc)</li>
     #     <li>#•••••• — full length HTML colour: (“<code>#000000</code>”, “<code>#bd2300</code>”)</li>
     #     <li>rgb(•••, •••, •••) — red, green and blue channels’ values: (“<code>rgb(200,&nbsp;100,&nbsp;0)</code>”)</li>
     #     <li>rgb(•••%, •••%, •••%) — same as above, but in %: (“<code>rgb(100%,&nbsp;175%,&nbsp;0%)</code>”)</li>
     #     <li>hsb(•••, •••, •••) — hue, saturation and brightness values: (“<code>hsb(0.5,&nbsp;0.25,&nbsp;1)</code>”)</li>
     #     <li>hsb(•••%, •••%, •••%) — same as above, but in %</li>
     #     <li>hsl(•••, •••, •••) — same as hsb</li>
     #     <li>hsl(•••%, •••%, •••%) — same as hsb</li>
     # </ul>
     = (object) RGB object in format:
     o {
     o     r (number) red,
     o     g (number) green,
     o     b (number) blue
     o     hex (string) color in HTML/CSS format: #••••••,
     o     error (boolean) true if string can’t be parsed
     o }
     \*/
    R.getRGB = cacher(function (colour) {
        if (!colour || !!((colour = Str(colour)).indexOf("-") + 1)) {
            return {r: -1, g: -1, b: -1, hex: "none", error: 1, toString: clrToString};
        }
        if (colour == "none") {
            return {r: -1, g: -1, b: -1, hex: "none", toString: clrToString};
        }
        !(hsrg[has](colour.toLowerCase().substring(0, 2)) || colour.charAt() == "#") && (colour = toHex(colour));
        var res,
            red,
            green,
            blue,
            opacity,
            t,
            values,
            rgb = colour.match(colourRegExp);
        if (rgb) {
            if (rgb[2]) {
                blue = toInt(rgb[2].substring(5), 16);
                green = toInt(rgb[2].substring(3, 5), 16);
                red = toInt(rgb[2].substring(1, 3), 16);
            }
            if (rgb[3]) {
                blue = toInt((t = rgb[3].charAt(3)) + t, 16);
                green = toInt((t = rgb[3].charAt(2)) + t, 16);
                red = toInt((t = rgb[3].charAt(1)) + t, 16);
            }
            if (rgb[4]) {
                values = rgb[4][split](commaSpaces);
                red = toFloat(values[0]);
                values[0].slice(-1) == "%" && (red *= 2.55);
                green = toFloat(values[1]);
                values[1].slice(-1) == "%" && (green *= 2.55);
                blue = toFloat(values[2]);
                values[2].slice(-1) == "%" && (blue *= 2.55);
                rgb[1].toLowerCase().slice(0, 4) == "rgba" && (opacity = toFloat(values[3]));
                values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
            }
            if (rgb[5]) {
                values = rgb[5][split](commaSpaces);
                red = toFloat(values[0]);
                values[0].slice(-1) == "%" && (red *= 2.55);
                green = toFloat(values[1]);
                values[1].slice(-1) == "%" && (green *= 2.55);
                blue = toFloat(values[2]);
                values[2].slice(-1) == "%" && (blue *= 2.55);
                (values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360);
                rgb[1].toLowerCase().slice(0, 4) == "hsba" && (opacity = toFloat(values[3]));
                values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
                return R.hsb2rgb(red, green, blue, opacity);
            }
            if (rgb[6]) {
                values = rgb[6][split](commaSpaces);
                red = toFloat(values[0]);
                values[0].slice(-1) == "%" && (red *= 2.55);
                green = toFloat(values[1]);
                values[1].slice(-1) == "%" && (green *= 2.55);
                blue = toFloat(values[2]);
                values[2].slice(-1) == "%" && (blue *= 2.55);
                (values[0].slice(-3) == "deg" || values[0].slice(-1) == "\xb0") && (red /= 360);
                rgb[1].toLowerCase().slice(0, 4) == "hsla" && (opacity = toFloat(values[3]));
                values[3] && values[3].slice(-1) == "%" && (opacity /= 100);
                return R.hsl2rgb(red, green, blue, opacity);
            }
            rgb = {r: red, g: green, b: blue, toString: clrToString};
            rgb.hex = "#" + (16777216 | blue | (green << 8) | (red << 16)).toString(16).slice(1);
            R.is(opacity, "finite") && (rgb.opacity = opacity);
            return rgb;
        }
        return {r: -1, g: -1, b: -1, hex: "none", error: 1, toString: clrToString};
    }, R);
    /*\
     * Raphael.hsb
     [ method ]
     **
     * Converts HSB values to hex representation of the colour.
     > Parameters
     - h (number) hue
     - s (number) saturation
     - b (number) value or brightness
     = (string) hex representation of the colour.
     \*/
    R.hsb = cacher(function (h, s, b) {
        return R.hsb2rgb(h, s, b).hex;
    });
    /*\
     * Raphael.hsl
     [ method ]
     **
     * Converts HSL values to hex representation of the colour.
     > Parameters
     - h (number) hue
     - s (number) saturation
     - l (number) luminosity
     = (string) hex representation of the colour.
     \*/
    R.hsl = cacher(function (h, s, l) {
        return R.hsl2rgb(h, s, l).hex;
    });
    /*\
     * Raphael.rgb
     [ method ]
     **
     * Converts RGB values to hex representation of the colour.
     > Parameters
     - r (number) red
     - g (number) green
     - b (number) blue
     = (string) hex representation of the colour.
     \*/
    R.rgb = cacher(function (r, g, b) {
        function round(x) { return (x + 0.5) | 0; }
        return "#" + (16777216 | round(b) | (round(g) << 8) | (round(r) << 16)).toString(16).slice(1);
    });
    /*\
     * Raphael.getColor
     [ method ]
     **
     * On each call returns next colour in the spectrum. To reset it back to red call @Raphael.getColor.reset
     > Parameters
     - value (number) #optional brightness, default is `0.75`
     = (string) hex representation of the colour.
     \*/
    R.getColor = function (value) {
        var start = this.getColor.start = this.getColor.start || {h: 0, s: 1, b: value || .75},
            rgb = this.hsb2rgb(start.h, start.s, start.b);
        start.h += .075;
        if (start.h > 1) {
            start.h = 0;
            start.s -= .2;
            start.s <= 0 && (this.getColor.start = {h: 0, s: 1, b: start.b});
        }
        return rgb.hex;
    };
    /*\
     * Raphael.getColor.reset
     [ method ]
     **
     * Resets spectrum position for @Raphael.getColor back to red.
     \*/
    R.getColor.reset = function () {
        delete this.start;
    };

    // http://schepers.cc/getting-to-the-point
    function catmullRom2bezier(crp, z) {
        var d = [];
        for (var i = 0, iLen = crp.length; iLen - 2 * !z > i; i += 2) {
            var p = [
                {x: +crp[i - 2], y: +crp[i - 1]},
                {x: +crp[i],     y: +crp[i + 1]},
                {x: +crp[i + 2], y: +crp[i + 3]},
                {x: +crp[i + 4], y: +crp[i + 5]}
            ];
            if (z) {
                if (!i) {
                    p[0] = {x: +crp[iLen - 2], y: +crp[iLen - 1]};
                } else if (iLen - 4 == i) {
                    p[3] = {x: +crp[0], y: +crp[1]};
                } else if (iLen - 2 == i) {
                    p[2] = {x: +crp[0], y: +crp[1]};
                    p[3] = {x: +crp[2], y: +crp[3]};
                }
            } else {
                if (iLen - 4 == i) {
                    p[3] = p[2];
                } else if (!i) {
                    p[0] = {x: +crp[i], y: +crp[i + 1]};
                }
            }
            d.push(["C",
                (-p[0].x + 6 * p[1].x + p[2].x) / 6,
                (-p[0].y + 6 * p[1].y + p[2].y) / 6,
                (p[1].x + 6 * p[2].x - p[3].x) / 6,
                (p[1].y + 6*p[2].y - p[3].y) / 6,
                p[2].x,
                p[2].y
            ]);
        }

        return d;
    }
    /*\
     * Raphael.parsePathString
     [ method ]
     **
     * Utility method
     **
     * Parses given path string into an array of arrays of path segments.
     > Parameters
     - pathString (string|array) path string or array of segments (in the last case it will be returned straight away)
     = (array) array of segments.
     \*/
    R.parsePathString = function (pathString) {
        if (!pathString) {
            return null;
        }
        var pth = paths(pathString);
        if (pth.arr) {
            return pathClone(pth.arr);
        }

        var paramCounts = {a: 7, c: 6, h: 1, l: 2, m: 2, r: 4, q: 4, s: 4, t: 2, v: 1, z: 0},
            data = [];
        if (R.is(pathString, array) && R.is(pathString[0], array)) { // rough assumption
            data = pathClone(pathString);
        }
        if (!data.length) {
            Str(pathString).replace(pathCommand, function (a, b, c) {
                var params = [],
                    name = b.toLowerCase();
                c.replace(pathValues, function (a, b) {
                    b && params.push(+b);
                });
                if (name == "m" && params.length > 2) {
                    data.push([b][concat](params.splice(0, 2)));
                    name = "l";
                    b = b == "m" ? "l" : "L";
                }
                if (name == "r") {
                    data.push([b][concat](params));
                } else while (params.length >= paramCounts[name]) {
                    data.push([b][concat](params.splice(0, paramCounts[name])));
                    if (!paramCounts[name]) {
                        break;
                    }
                }
            });
        }
        data.toString = R._path2string;
        pth.arr = pathClone(data);
        return data;
    };
    /*\
     * Raphael.parseTransformString
     [ method ]
     **
     * Utility method
     **
     * Parses given path string into an array of transformations.
     > Parameters
     - TString (string|array) transform string or array of transformations (in the last case it will be returned straight away)
     = (array) array of transformations.
     \*/
    R.parseTransformString = cacher(function (TString) {
        if (!TString) {
            return null;
        }
        var paramCounts = {r: 3, s: 4, t: 2, m: 6},
            data = [];
        if (R.is(TString, array) && R.is(TString[0], array)) { // rough assumption
            data = pathClone(TString);
        }
        if (!data.length) {
            Str(TString).replace(tCommand, function (a, b, c) {
                var params = [],
                    name = lowerCase.call(b);
                c.replace(pathValues, function (a, b) {
                    b && params.push(+b);
                });
                data.push([b][concat](params));
            });
        }
        data.toString = R._path2string;
        return data;
    });
    // PATHS
    var paths = function (ps) {
        var p = paths.ps = paths.ps || {};
        if (p[ps]) {
            p[ps].sleep = 100;
        } else {
            p[ps] = {
                sleep: 100
            };
        }
        setTimeout(function () {
            for (var key in p) if (p[has](key) && key != ps) {
                p[key].sleep--;
                !p[key].sleep && delete p[key];
            }
        });
        return p[ps];
    };
    /*\
     * Raphael.findDotsAtSegment
     [ method ]
     **
     * Utility method
     **
     * Find dot coordinates on the given cubic bezier curve at the given t.
     > Parameters
     - p1x (number) x of the first point of the curve
     - p1y (number) y of the first point of the curve
     - c1x (number) x of the first anchor of the curve
     - c1y (number) y of the first anchor of the curve
     - c2x (number) x of the second anchor of the curve
     - c2y (number) y of the second anchor of the curve
     - p2x (number) x of the second point of the curve
     - p2y (number) y of the second point of the curve
     - t (number) position on the curve (0..1)
     = (object) point information in format:
     o {
     o     x: (number) x coordinate of the point
     o     y: (number) y coordinate of the point
     o     m: {
     o         x: (number) x coordinate of the left anchor
     o         y: (number) y coordinate of the left anchor
     o     }
     o     n: {
     o         x: (number) x coordinate of the right anchor
     o         y: (number) y coordinate of the right anchor
     o     }
     o     start: {
     o         x: (number) x coordinate of the start of the curve
     o         y: (number) y coordinate of the start of the curve
     o     }
     o     end: {
     o         x: (number) x coordinate of the end of the curve
     o         y: (number) y coordinate of the end of the curve
     o     }
     o     alpha: (number) angle of the curve derivative at the point
     o }
     \*/
    R.findDotsAtSegment = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {
        var t1 = 1 - t,
            t13 = pow(t1, 3),
            t12 = pow(t1, 2),
            t2 = t * t,
            t3 = t2 * t,
            x = t13 * p1x + t12 * 3 * t * c1x + t1 * 3 * t * t * c2x + t3 * p2x,
            y = t13 * p1y + t12 * 3 * t * c1y + t1 * 3 * t * t * c2y + t3 * p2y,
            mx = p1x + 2 * t * (c1x - p1x) + t2 * (c2x - 2 * c1x + p1x),
            my = p1y + 2 * t * (c1y - p1y) + t2 * (c2y - 2 * c1y + p1y),
            nx = c1x + 2 * t * (c2x - c1x) + t2 * (p2x - 2 * c2x + c1x),
            ny = c1y + 2 * t * (c2y - c1y) + t2 * (p2y - 2 * c2y + c1y),
            ax = t1 * p1x + t * c1x,
            ay = t1 * p1y + t * c1y,
            cx = t1 * c2x + t * p2x,
            cy = t1 * c2y + t * p2y,
            alpha = (90 - math.atan2(mx - nx, my - ny) * 180 / PI);
        (mx > nx || my < ny) && (alpha += 180);
        return {
            x: x,
            y: y,
            m: {x: mx, y: my},
            n: {x: nx, y: ny},
            start: {x: ax, y: ay},
            end: {x: cx, y: cy},
            alpha: alpha
        };
    };
    /*\
     * Raphael.bezierBBox
     [ method ]
     **
     * Utility method
     **
     * Return bounding box of a given cubic bezier curve
     > Parameters
     - p1x (number) x of the first point of the curve
     - p1y (number) y of the first point of the curve
     - c1x (number) x of the first anchor of the curve
     - c1y (number) y of the first anchor of the curve
     - c2x (number) x of the second anchor of the curve
     - c2y (number) y of the second anchor of the curve
     - p2x (number) x of the second point of the curve
     - p2y (number) y of the second point of the curve
     * or
     - bez (array) array of six points for bezier curve
     = (object) point information in format:
     o {
     o     min: {
     o         x: (number) x coordinate of the left point
     o         y: (number) y coordinate of the top point
     o     }
     o     max: {
     o         x: (number) x coordinate of the right point
     o         y: (number) y coordinate of the bottom point
     o     }
     o }
     \*/
    R.bezierBBox = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y) {
        if (!R.is(p1x, "array")) {
            p1x = [p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y];
        }
        var bbox = curveDim.apply(null, p1x);
        return {
            x: bbox.min.x,
            y: bbox.min.y,
            x2: bbox.max.x,
            y2: bbox.max.y,
            width: bbox.max.x - bbox.min.x,
            height: bbox.max.y - bbox.min.y
        };
    };
    /*\
     * Raphael.isPointInsideBBox
     [ method ]
     **
     * Utility method
     **
     * Returns `true` if given point is inside bounding boxes.
     > Parameters
     - bbox (string) bounding box
     - x (string) x coordinate of the point
     - y (string) y coordinate of the point
     = (boolean) `true` if point inside
     \*/
    R.isPointInsideBBox = function (bbox, x, y) {
        return x >= bbox.x && x <= bbox.x2 && y >= bbox.y && y <= bbox.y2;
    };
    /*\
     * Raphael.isBBoxIntersect
     [ method ]
     **
     * Utility method
     **
     * Returns `true` if two bounding boxes intersect
     > Parameters
     - bbox1 (string) first bounding box
     - bbox2 (string) second bounding box
     = (boolean) `true` if they intersect
     \*/
    R.isBBoxIntersect = function (bbox1, bbox2) {
        var i = R.isPointInsideBBox;
        return i(bbox2, bbox1.x, bbox1.y)
            || i(bbox2, bbox1.x2, bbox1.y)
            || i(bbox2, bbox1.x, bbox1.y2)
            || i(bbox2, bbox1.x2, bbox1.y2)
            || i(bbox1, bbox2.x, bbox2.y)
            || i(bbox1, bbox2.x2, bbox2.y)
            || i(bbox1, bbox2.x, bbox2.y2)
            || i(bbox1, bbox2.x2, bbox2.y2)
            || (bbox1.x < bbox2.x2 && bbox1.x > bbox2.x || bbox2.x < bbox1.x2 && bbox2.x > bbox1.x)
            && (bbox1.y < bbox2.y2 && bbox1.y > bbox2.y || bbox2.y < bbox1.y2 && bbox2.y > bbox1.y);
    };
    function base3(t, p1, p2, p3, p4) {
        var t1 = -3 * p1 + 9 * p2 - 9 * p3 + 3 * p4,
            t2 = t * t1 + 6 * p1 - 12 * p2 + 6 * p3;
        return t * t2 - 3 * p1 + 3 * p2;
    }
    function bezlen(x1, y1, x2, y2, x3, y3, x4, y4, z) {
        if (z == null) {
            z = 1;
        }
        z = z > 1 ? 1 : z < 0 ? 0 : z;
        var z2 = z / 2,
            n = 12,
            Tvalues = [-0.1252,0.1252,-0.3678,0.3678,-0.5873,0.5873,-0.7699,0.7699,-0.9041,0.9041,-0.9816,0.9816],
            Cvalues = [0.2491,0.2491,0.2335,0.2335,0.2032,0.2032,0.1601,0.1601,0.1069,0.1069,0.0472,0.0472],
            sum = 0;
        for (var i = 0; i < n; i++) {
            var ct = z2 * Tvalues[i] + z2,
                xbase = base3(ct, x1, x2, x3, x4),
                ybase = base3(ct, y1, y2, y3, y4),
                comb = xbase * xbase + ybase * ybase;
            sum += Cvalues[i] * math.sqrt(comb);
        }
        return z2 * sum;
    }
    function getTatLen(x1, y1, x2, y2, x3, y3, x4, y4, ll) {
        if (ll < 0 || bezlen(x1, y1, x2, y2, x3, y3, x4, y4) < ll) {
            return;
        }
        var t = 1,
            step = t / 2,
            t2 = t - step,
            l,
            e = .01;
        l = bezlen(x1, y1, x2, y2, x3, y3, x4, y4, t2);
        while (abs(l - ll) > e) {
            step /= 2;
            t2 += (l < ll ? 1 : -1) * step;
            l = bezlen(x1, y1, x2, y2, x3, y3, x4, y4, t2);
        }
        return t2;
    }
    function intersect(x1, y1, x2, y2, x3, y3, x4, y4) {
        if (
            mmax(x1, x2) < mmin(x3, x4) ||
            mmin(x1, x2) > mmax(x3, x4) ||
            mmax(y1, y2) < mmin(y3, y4) ||
            mmin(y1, y2) > mmax(y3, y4)
        ) {
            return;
        }
        var nx = (x1 * y2 - y1 * x2) * (x3 - x4) - (x1 - x2) * (x3 * y4 - y3 * x4),
            ny = (x1 * y2 - y1 * x2) * (y3 - y4) - (y1 - y2) * (x3 * y4 - y3 * x4),
            denominator = (x1 - x2) * (y3 - y4) - (y1 - y2) * (x3 - x4);

        if (!denominator) {
            return;
        }
        var px = nx / denominator,
            py = ny / denominator,
            px2 = +px.toFixed(2),
            py2 = +py.toFixed(2);
        if (
            px2 < +mmin(x1, x2).toFixed(2) ||
            px2 > +mmax(x1, x2).toFixed(2) ||
            px2 < +mmin(x3, x4).toFixed(2) ||
            px2 > +mmax(x3, x4).toFixed(2) ||
            py2 < +mmin(y1, y2).toFixed(2) ||
            py2 > +mmax(y1, y2).toFixed(2) ||
            py2 < +mmin(y3, y4).toFixed(2) ||
            py2 > +mmax(y3, y4).toFixed(2)
        ) {
            return;
        }
        return {x: px, y: py};
    }
    function inter(bez1, bez2) {
        return interHelper(bez1, bez2);
    }
    function interCount(bez1, bez2) {
        return interHelper(bez1, bez2, 1);
    }
    function interHelper(bez1, bez2, justCount) {
        var bbox1 = R.bezierBBox(bez1),
            bbox2 = R.bezierBBox(bez2);
        if (!R.isBBoxIntersect(bbox1, bbox2)) {
            return justCount ? 0 : [];
        }
        var l1 = bezlen.apply(0, bez1),
            l2 = bezlen.apply(0, bez2),
            n1 = mmax(~~(l1 / 5), 1),
            n2 = mmax(~~(l2 / 5), 1),
            dots1 = [],
            dots2 = [],
            xy = {},
            res = justCount ? 0 : [];
        for (var i = 0; i < n1 + 1; i++) {
            var p = R.findDotsAtSegment.apply(R, bez1.concat(i / n1));
            dots1.push({x: p.x, y: p.y, t: i / n1});
        }
        for (i = 0; i < n2 + 1; i++) {
            p = R.findDotsAtSegment.apply(R, bez2.concat(i / n2));
            dots2.push({x: p.x, y: p.y, t: i / n2});
        }
        for (i = 0; i < n1; i++) {
            for (var j = 0; j < n2; j++) {
                var di = dots1[i],
                    di1 = dots1[i + 1],
                    dj = dots2[j],
                    dj1 = dots2[j + 1],
                    ci = abs(di1.x - di.x) < .001 ? "y" : "x",
                    cj = abs(dj1.x - dj.x) < .001 ? "y" : "x",
                    is = intersect(di.x, di.y, di1.x, di1.y, dj.x, dj.y, dj1.x, dj1.y);
                if (is) {
                    if (xy[is.x.toFixed(4)] == is.y.toFixed(4)) {
                        continue;
                    }
                    xy[is.x.toFixed(4)] = is.y.toFixed(4);
                    var t1 = di.t + abs((is[ci] - di[ci]) / (di1[ci] - di[ci])) * (di1.t - di.t),
                        t2 = dj.t + abs((is[cj] - dj[cj]) / (dj1[cj] - dj[cj])) * (dj1.t - dj.t);
                    if (t1 >= 0 && t1 <= 1.001 && t2 >= 0 && t2 <= 1.001) {
                        if (justCount) {
                            res++;
                        } else {
                            res.push({
                                x: is.x,
                                y: is.y,
                                t1: mmin(t1, 1),
                                t2: mmin(t2, 1)
                            });
                        }
                    }
                }
            }
        }
        return res;
    }
    /*\
     * Raphael.pathIntersection
     [ method ]
     **
     * Utility method
     **
     * Finds intersections of two paths
     > Parameters
     - path1 (string) path string
     - path2 (string) path string
     = (array) dots of intersection
     o [
     o     {
     o         x: (number) x coordinate of the point
     o         y: (number) y coordinate of the point
     o         t1: (number) t value for segment of path1
     o         t2: (number) t value for segment of path2
     o         segment1: (number) order number for segment of path1
     o         segment2: (number) order number for segment of path2
     o         bez1: (array) eight coordinates representing beziér curve for the segment of path1
     o         bez2: (array) eight coordinates representing beziér curve for the segment of path2
     o     }
     o ]
     \*/
    R.pathIntersection = function (path1, path2) {
        return interPathHelper(path1, path2);
    };
    R.pathIntersectionNumber = function (path1, path2) {
        return interPathHelper(path1, path2, 1);
    };
    function interPathHelper(path1, path2, justCount) {
        path1 = R._path2curve(path1);
        path2 = R._path2curve(path2);
        var x1, y1, x2, y2, x1m, y1m, x2m, y2m, bez1, bez2,
            res = justCount ? 0 : [];
        for (var i = 0, ii = path1.length; i < ii; i++) {
            var pi = path1[i];
            if (pi[0] == "M") {
                x1 = x1m = pi[1];
                y1 = y1m = pi[2];
            } else {
                if (pi[0] == "C") {
                    bez1 = [x1, y1].concat(pi.slice(1));
                    x1 = bez1[6];
                    y1 = bez1[7];
                } else {
                    bez1 = [x1, y1, x1, y1, x1m, y1m, x1m, y1m];
                    x1 = x1m;
                    y1 = y1m;
                }
                for (var j = 0, jj = path2.length; j < jj; j++) {
                    var pj = path2[j];
                    if (pj[0] == "M") {
                        x2 = x2m = pj[1];
                        y2 = y2m = pj[2];
                    } else {
                        if (pj[0] == "C") {
                            bez2 = [x2, y2].concat(pj.slice(1));
                            x2 = bez2[6];
                            y2 = bez2[7];
                        } else {
                            bez2 = [x2, y2, x2, y2, x2m, y2m, x2m, y2m];
                            x2 = x2m;
                            y2 = y2m;
                        }
                        var intr = interHelper(bez1, bez2, justCount);
                        if (justCount) {
                            res += intr;
                        } else {
                            for (var k = 0, kk = intr.length; k < kk; k++) {
                                intr[k].segment1 = i;
                                intr[k].segment2 = j;
                                intr[k].bez1 = bez1;
                                intr[k].bez2 = bez2;
                            }
                            res = res.concat(intr);
                        }
                    }
                }
            }
        }
        return res;
    }
    /*\
     * Raphael.isPointInsidePath
     [ method ]
     **
     * Utility method
     **
     * Returns `true` if given point is inside a given closed path.
     > Parameters
     - path (string) path string
     - x (number) x of the point
     - y (number) y of the point
     = (boolean) true, if point is inside the path
     \*/
    R.isPointInsidePath = function (path, x, y) {
        var bbox = R.pathBBox(path);
        return R.isPointInsideBBox(bbox, x, y) &&
            interPathHelper(path, [["M", x, y], ["H", bbox.x2 + 10]], 1) % 2 == 1;
    };
    R._removedFactory = function (methodname) {
        return function () {
            eve("raphael.log", null, "Rapha\xebl: you are calling to method \u201c" + methodname + "\u201d of removed object", methodname);
        };
    };
    /*\
     * Raphael.pathBBox
     [ method ]
     **
     * Utility method
     **
     * Return bounding box of a given path
     > Parameters
     - path (string) path string
     = (object) bounding box
     o {
     o     x: (number) x coordinate of the left top point of the box
     o     y: (number) y coordinate of the left top point of the box
     o     x2: (number) x coordinate of the right bottom point of the box
     o     y2: (number) y coordinate of the right bottom point of the box
     o     width: (number) width of the box
     o     height: (number) height of the box
     o     cx: (number) x coordinate of the center of the box
     o     cy: (number) y coordinate of the center of the box
     o }
     \*/
    var pathDimensions = R.pathBBox = function (path) {
            var pth = paths(path);
            if (pth.bbox) {
                return clone(pth.bbox);
            }
            if (!path) {
                return {x: 0, y: 0, width: 0, height: 0, x2: 0, y2: 0};
            }
            path = path2curve(path);
            var x = 0,
                y = 0,
                X = [],
                Y = [],
                p;
            for (var i = 0, ii = path.length; i < ii; i++) {
                p = path[i];
                if (p[0] == "M") {
                    x = p[1];
                    y = p[2];
                    X.push(x);
                    Y.push(y);
                } else {
                    var dim = curveDim(x, y, p[1], p[2], p[3], p[4], p[5], p[6]);
                    X = X[concat](dim.min.x, dim.max.x);
                    Y = Y[concat](dim.min.y, dim.max.y);
                    x = p[5];
                    y = p[6];
                }
            }
            var xmin = mmin[apply](0, X),
                ymin = mmin[apply](0, Y),
                xmax = mmax[apply](0, X),
                ymax = mmax[apply](0, Y),
                width = xmax - xmin,
                height = ymax - ymin,
                bb = {
                    x: xmin,
                    y: ymin,
                    x2: xmax,
                    y2: ymax,
                    width: width,
                    height: height,
                    cx: xmin + width / 2,
                    cy: ymin + height / 2
                };
            pth.bbox = clone(bb);
            return bb;
        },
        pathClone = function (pathArray) {
            var res = clone(pathArray);
            res.toString = R._path2string;
            return res;
        },
        pathToRelative = R._pathToRelative = function (pathArray) {
            var pth = paths(pathArray);
            if (pth.rel) {
                return pathClone(pth.rel);
            }
            if (!R.is(pathArray, array) || !R.is(pathArray && pathArray[0], array)) { // rough assumption
                pathArray = R.parsePathString(pathArray);
            }
            var res = [],
                x = 0,
                y = 0,
                mx = 0,
                my = 0,
                start = 0;
            if (pathArray[0][0] == "M") {
                x = pathArray[0][1];
                y = pathArray[0][2];
                mx = x;
                my = y;
                start++;
                res.push(["M", x, y]);
            }
            for (var i = start, ii = pathArray.length; i < ii; i++) {
                var r = res[i] = [],
                    pa = pathArray[i];
                if (pa[0] != lowerCase.call(pa[0])) {
                    r[0] = lowerCase.call(pa[0]);
                    switch (r[0]) {
                        case "a":
                            r[1] = pa[1];
                            r[2] = pa[2];
                            r[3] = pa[3];
                            r[4] = pa[4];
                            r[5] = pa[5];
                            r[6] = +(pa[6] - x).toFixed(3);
                            r[7] = +(pa[7] - y).toFixed(3);
                            break;
                        case "v":
                            r[1] = +(pa[1] - y).toFixed(3);
                            break;
                        case "m":
                            mx = pa[1];
                            my = pa[2];
                        default:
                            for (var j = 1, jj = pa.length; j < jj; j++) {
                                r[j] = +(pa[j] - ((j % 2) ? x : y)).toFixed(3);
                            }
                    }
                } else {
                    r = res[i] = [];
                    if (pa[0] == "m") {
                        mx = pa[1] + x;
                        my = pa[2] + y;
                    }
                    for (var k = 0, kk = pa.length; k < kk; k++) {
                        res[i][k] = pa[k];
                    }
                }
                var len = res[i].length;
                switch (res[i][0]) {
                    case "z":
                        x = mx;
                        y = my;
                        break;
                    case "h":
                        x += +res[i][len - 1];
                        break;
                    case "v":
                        y += +res[i][len - 1];
                        break;
                    default:
                        x += +res[i][len - 2];
                        y += +res[i][len - 1];
                }
            }
            res.toString = R._path2string;
            pth.rel = pathClone(res);
            return res;
        },
        pathToAbsolute = R._pathToAbsolute = function (pathArray) {
            var pth = paths(pathArray);
            if (pth.abs) {
                return pathClone(pth.abs);
            }
            if (!R.is(pathArray, array) || !R.is(pathArray && pathArray[0], array)) { // rough assumption
                pathArray = R.parsePathString(pathArray);
            }
            if (!pathArray || !pathArray.length) {
                return [["M", 0, 0]];
            }
            var res = [],
                x = 0,
                y = 0,
                mx = 0,
                my = 0,
                start = 0;
            if (pathArray[0][0] == "M") {
                x = +pathArray[0][1];
                y = +pathArray[0][2];
                mx = x;
                my = y;
                start++;
                res[0] = ["M", x, y];
            }
            var crz = pathArray.length == 3 && pathArray[0][0] == "M" && pathArray[1][0].toUpperCase() == "R" && pathArray[2][0].toUpperCase() == "Z";
            for (var r, pa, i = start, ii = pathArray.length; i < ii; i++) {
                res.push(r = []);
                pa = pathArray[i];
                if (pa[0] != upperCase.call(pa[0])) {
                    r[0] = upperCase.call(pa[0]);
                    switch (r[0]) {
                        case "A":
                            r[1] = pa[1];
                            r[2] = pa[2];
                            r[3] = pa[3];
                            r[4] = pa[4];
                            r[5] = pa[5];
                            r[6] = +(pa[6] + x);
                            r[7] = +(pa[7] + y);
                            break;
                        case "V":
                            r[1] = +pa[1] + y;
                            break;
                        case "H":
                            r[1] = +pa[1] + x;
                            break;
                        case "R":
                            var dots = [x, y][concat](pa.slice(1));
                            for (var j = 2, jj = dots.length; j < jj; j++) {
                                dots[j] = +dots[j] + x;
                                dots[++j] = +dots[j] + y;
                            }
                            res.pop();
                            res = res[concat](catmullRom2bezier(dots, crz));
                            break;
                        case "M":
                            mx = +pa[1] + x;
                            my = +pa[2] + y;
                        default:
                            for (j = 1, jj = pa.length; j < jj; j++) {
                                r[j] = +pa[j] + ((j % 2) ? x : y);
                            }
                    }
                } else if (pa[0] == "R") {
                    dots = [x, y][concat](pa.slice(1));
                    res.pop();
                    res = res[concat](catmullRom2bezier(dots, crz));
                    r = ["R"][concat](pa.slice(-2));
                } else {
                    for (var k = 0, kk = pa.length; k < kk; k++) {
                        r[k] = pa[k];
                    }
                }
                switch (r[0]) {
                    case "Z":
                        x = mx;
                        y = my;
                        break;
                    case "H":
                        x = r[1];
                        break;
                    case "V":
                        y = r[1];
                        break;
                    case "M":
                        mx = r[r.length - 2];
                        my = r[r.length - 1];
                    default:
                        x = r[r.length - 2];
                        y = r[r.length - 1];
                }
            }
            res.toString = R._path2string;
            pth.abs = pathClone(res);
            return res;
        },
        l2c = function (x1, y1, x2, y2) {
            return [x1, y1, x2, y2, x2, y2];
        },
        q2c = function (x1, y1, ax, ay, x2, y2) {
            var _13 = 1 / 3,
                _23 = 2 / 3;
            return [
                _13 * x1 + _23 * ax,
                _13 * y1 + _23 * ay,
                _13 * x2 + _23 * ax,
                _13 * y2 + _23 * ay,
                x2,
                y2
            ];
        },
        a2c = function (x1, y1, rx, ry, angle, large_arc_flag, sweep_flag, x2, y2, recursive) {
            // for more information of where this math came from visit:
            // http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
            var _120 = PI * 120 / 180,
                rad = PI / 180 * (+angle || 0),
                res = [],
                xy,
                rotate = cacher(function (x, y, rad) {
                    var X = x * math.cos(rad) - y * math.sin(rad),
                        Y = x * math.sin(rad) + y * math.cos(rad);
                    return {x: X, y: Y};
                });
            if (!recursive) {
                xy = rotate(x1, y1, -rad);
                x1 = xy.x;
                y1 = xy.y;
                xy = rotate(x2, y2, -rad);
                x2 = xy.x;
                y2 = xy.y;
                var cos = math.cos(PI / 180 * angle),
                    sin = math.sin(PI / 180 * angle),
                    x = (x1 - x2) / 2,
                    y = (y1 - y2) / 2;
                var h = (x * x) / (rx * rx) + (y * y) / (ry * ry);
                if (h > 1) {
                    h = math.sqrt(h);
                    rx = h * rx;
                    ry = h * ry;
                }
                var rx2 = rx * rx,
                    ry2 = ry * ry,
                    k = (large_arc_flag == sweep_flag ? -1 : 1) *
                        math.sqrt(abs((rx2 * ry2 - rx2 * y * y - ry2 * x * x) / (rx2 * y * y + ry2 * x * x))),
                    cx = k * rx * y / ry + (x1 + x2) / 2,
                    cy = k * -ry * x / rx + (y1 + y2) / 2,
                    f1 = math.asin(((y1 - cy) / ry).toFixed(9)),
                    f2 = math.asin(((y2 - cy) / ry).toFixed(9));

                f1 = x1 < cx ? PI - f1 : f1;
                f2 = x2 < cx ? PI - f2 : f2;
                f1 < 0 && (f1 = PI * 2 + f1);
                f2 < 0 && (f2 = PI * 2 + f2);
                if (sweep_flag && f1 > f2) {
                    f1 = f1 - PI * 2;
                }
                if (!sweep_flag && f2 > f1) {
                    f2 = f2 - PI * 2;
                }
            } else {
                f1 = recursive[0];
                f2 = recursive[1];
                cx = recursive[2];
                cy = recursive[3];
            }
            var df = f2 - f1;
            if (abs(df) > _120) {
                var f2old = f2,
                    x2old = x2,
                    y2old = y2;
                f2 = f1 + _120 * (sweep_flag && f2 > f1 ? 1 : -1);
                x2 = cx + rx * math.cos(f2);
                y2 = cy + ry * math.sin(f2);
                res = a2c(x2, y2, rx, ry, angle, 0, sweep_flag, x2old, y2old, [f2, f2old, cx, cy]);
            }
            df = f2 - f1;
            var c1 = math.cos(f1),
                s1 = math.sin(f1),
                c2 = math.cos(f2),
                s2 = math.sin(f2),
                t = math.tan(df / 4),
                hx = 4 / 3 * rx * t,
                hy = 4 / 3 * ry * t,
                m1 = [x1, y1],
                m2 = [x1 + hx * s1, y1 - hy * c1],
                m3 = [x2 + hx * s2, y2 - hy * c2],
                m4 = [x2, y2];
            m2[0] = 2 * m1[0] - m2[0];
            m2[1] = 2 * m1[1] - m2[1];
            if (recursive) {
                return [m2, m3, m4][concat](res);
            } else {
                res = [m2, m3, m4][concat](res).join()[split](",");
                var newres = [];
                for (var i = 0, ii = res.length; i < ii; i++) {
                    newres[i] = i % 2 ? rotate(res[i - 1], res[i], rad).y : rotate(res[i], res[i + 1], rad).x;
                }
                return newres;
            }
        },
        findDotAtSegment = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {
            var t1 = 1 - t;
            return {
                x: pow(t1, 3) * p1x + pow(t1, 2) * 3 * t * c1x + t1 * 3 * t * t * c2x + pow(t, 3) * p2x,
                y: pow(t1, 3) * p1y + pow(t1, 2) * 3 * t * c1y + t1 * 3 * t * t * c2y + pow(t, 3) * p2y
            };
        },
        curveDim = cacher(function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y) {
            var a = (c2x - 2 * c1x + p1x) - (p2x - 2 * c2x + c1x),
                b = 2 * (c1x - p1x) - 2 * (c2x - c1x),
                c = p1x - c1x,
                t1 = (-b + math.sqrt(b * b - 4 * a * c)) / 2 / a,
                t2 = (-b - math.sqrt(b * b - 4 * a * c)) / 2 / a,
                y = [p1y, p2y],
                x = [p1x, p2x],
                dot;
            abs(t1) > "1e12" && (t1 = .5);
            abs(t2) > "1e12" && (t2 = .5);
            if (t1 > 0 && t1 < 1) {
                dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t1);
                x.push(dot.x);
                y.push(dot.y);
            }
            if (t2 > 0 && t2 < 1) {
                dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t2);
                x.push(dot.x);
                y.push(dot.y);
            }
            a = (c2y - 2 * c1y + p1y) - (p2y - 2 * c2y + c1y);
            b = 2 * (c1y - p1y) - 2 * (c2y - c1y);
            c = p1y - c1y;
            t1 = (-b + math.sqrt(b * b - 4 * a * c)) / 2 / a;
            t2 = (-b - math.sqrt(b * b - 4 * a * c)) / 2 / a;
            abs(t1) > "1e12" && (t1 = .5);
            abs(t2) > "1e12" && (t2 = .5);
            if (t1 > 0 && t1 < 1) {
                dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t1);
                x.push(dot.x);
                y.push(dot.y);
            }
            if (t2 > 0 && t2 < 1) {
                dot = findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t2);
                x.push(dot.x);
                y.push(dot.y);
            }
            return {
                min: {x: mmin[apply](0, x), y: mmin[apply](0, y)},
                max: {x: mmax[apply](0, x), y: mmax[apply](0, y)}
            };
        }),
        path2curve = R._path2curve = cacher(function (path, path2) {
            var pth = !path2 && paths(path);
            if (!path2 && pth.curve) {
                return pathClone(pth.curve);
            }
            var p = pathToAbsolute(path),
                p2 = path2 && pathToAbsolute(path2),
                attrs = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null},
                attrs2 = {x: 0, y: 0, bx: 0, by: 0, X: 0, Y: 0, qx: null, qy: null},
                processPath = function (path, d, pcom) {
                    var nx, ny, tq = {T:1, Q:1};
                    if (!path) {
                        return ["C", d.x, d.y, d.x, d.y, d.x, d.y];
                    }
                    !(path[0] in tq) && (d.qx = d.qy = null);
                    switch (path[0]) {
                        case "M":
                            d.X = path[1];
                            d.Y = path[2];
                            break;
                        case "A":
                            path = ["C"][concat](a2c[apply](0, [d.x, d.y][concat](path.slice(1))));
                            break;
                        case "S":
                            if (pcom == "C" || pcom == "S") { // In "S" case we have to take into account, if the previous command is C/S.
                                nx = d.x * 2 - d.bx;          // And reflect the previous
                                ny = d.y * 2 - d.by;          // command's control point relative to the current point.
                            }
                            else {                            // or some else or nothing
                                nx = d.x;
                                ny = d.y;
                            }
                            path = ["C", nx, ny][concat](path.slice(1));
                            break;
                        case "T":
                            if (pcom == "Q" || pcom == "T") { // In "T" case we have to take into account, if the previous command is Q/T.
                                d.qx = d.x * 2 - d.qx;        // And make a reflection similar
                                d.qy = d.y * 2 - d.qy;        // to case "S".
                            }
                            else {                            // or something else or nothing
                                d.qx = d.x;
                                d.qy = d.y;
                            }
                            path = ["C"][concat](q2c(d.x, d.y, d.qx, d.qy, path[1], path[2]));
                            break;
                        case "Q":
                            d.qx = path[1];
                            d.qy = path[2];
                            path = ["C"][concat](q2c(d.x, d.y, path[1], path[2], path[3], path[4]));
                            break;
                        case "L":
                            path = ["C"][concat](l2c(d.x, d.y, path[1], path[2]));
                            break;
                        case "H":
                            path = ["C"][concat](l2c(d.x, d.y, path[1], d.y));
                            break;
                        case "V":
                            path = ["C"][concat](l2c(d.x, d.y, d.x, path[1]));
                            break;
                        case "Z":
                            path = ["C"][concat](l2c(d.x, d.y, d.X, d.Y));
                            break;
                    }
                    return path;
                },
                fixArc = function (pp, i) {
                    if (pp[i].length > 7) {
                        pp[i].shift();
                        var pi = pp[i];
                        while (pi.length) {
                            pcoms1[i]="A"; // if created multiple C:s, their original seg is saved
                            p2 && (pcoms2[i]="A"); // the same as above
                            pp.splice(i++, 0, ["C"][concat](pi.splice(0, 6)));
                        }
                        pp.splice(i, 1);
                        ii = mmax(p.length, p2 && p2.length || 0);
                    }
                },
                fixM = function (path1, path2, a1, a2, i) {
                    if (path1 && path2 && path1[i][0] == "M" && path2[i][0] != "M") {
                        path2.splice(i, 0, ["M", a2.x, a2.y]);
                        a1.bx = 0;
                        a1.by = 0;
                        a1.x = path1[i][1];
                        a1.y = path1[i][2];
                        ii = mmax(p.length, p2 && p2.length || 0);
                    }
                },
                pcoms1 = [], // path commands of original path p
                pcoms2 = [], // path commands of original path p2
                pfirst = "", // temporary holder for original path command
                pcom = ""; // holder for previous path command of original path
            for (var i = 0, ii = mmax(p.length, p2 && p2.length || 0); i < ii; i++) {
                p[i] && (pfirst = p[i][0]); // save current path command

                if (pfirst != "C") // C is not saved yet, because it may be result of conversion
                {
                    pcoms1[i] = pfirst; // Save current path command
                    i && ( pcom = pcoms1[i-1]); // Get previous path command pcom
                }
                p[i] = processPath(p[i], attrs, pcom); // Previous path command is inputted to processPath

                if (pcoms1[i] != "A" && pfirst == "C") pcoms1[i] = "C"; // A is the only command
                // which may produce multiple C:s
                // so we have to make sure that C is also C in original path

                fixArc(p, i); // fixArc adds also the right amount of A:s to pcoms1

                if (p2) { // the same procedures is done to p2
                    p2[i] && (pfirst = p2[i][0]);
                    if (pfirst != "C")
                    {
                        pcoms2[i] = pfirst;
                        i && (pcom = pcoms2[i-1]);
                    }
                    p2[i] = processPath(p2[i], attrs2, pcom);

                    if (pcoms2[i]!="A" && pfirst=="C") pcoms2[i]="C";

                    fixArc(p2, i);
                }
                fixM(p, p2, attrs, attrs2, i);
                fixM(p2, p, attrs2, attrs, i);
                var seg = p[i],
                    seg2 = p2 && p2[i],
                    seglen = seg.length,
                    seg2len = p2 && seg2.length;
                attrs.x = seg[seglen - 2];
                attrs.y = seg[seglen - 1];
                attrs.bx = toFloat(seg[seglen - 4]) || attrs.x;
                attrs.by = toFloat(seg[seglen - 3]) || attrs.y;
                attrs2.bx = p2 && (toFloat(seg2[seg2len - 4]) || attrs2.x);
                attrs2.by = p2 && (toFloat(seg2[seg2len - 3]) || attrs2.y);
                attrs2.x = p2 && seg2[seg2len - 2];
                attrs2.y = p2 && seg2[seg2len - 1];
            }
            if (!p2) {
                pth.curve = pathClone(p);
            }
            return p2 ? [p, p2] : p;
        }, null, pathClone),
        parseDots = R._parseDots = cacher(function (gradient) {
            var dots = [];
            for (var i = 0, ii = gradient.length; i < ii; i++) {
                var dot = {},
                    par = gradient[i].match(/^([^:]*):?([\d\.]*)/);
                dot.color = R.getRGB(par[1]);
                if (dot.color.error) {
                    return null;
                }
                dot.opacity = dot.color.opacity;
                dot.color = dot.color.hex;
                par[2] && (dot.offset = par[2] + "%");
                dots.push(dot);
            }
            for (i = 1, ii = dots.length - 1; i < ii; i++) {
                if (!dots[i].offset) {
                    var start = toFloat(dots[i - 1].offset || 0),
                        end = 0;
                    for (var j = i + 1; j < ii; j++) {
                        if (dots[j].offset) {
                            end = dots[j].offset;
                            break;
                        }
                    }
                    if (!end) {
                        end = 100;
                        j = ii;
                    }
                    end = toFloat(end);
                    var d = (end - start) / (j - i + 1);
                    for (; i < j; i++) {
                        start += d;
                        dots[i].offset = start + "%";
                    }
                }
            }
            return dots;
        }),
        tear = R._tear = function (el, paper) {
            el == paper.top && (paper.top = el.prev);
            el == paper.bottom && (paper.bottom = el.next);
            el.next && (el.next.prev = el.prev);
            el.prev && (el.prev.next = el.next);
        },
        tofront = R._tofront = function (el, paper) {
            if (paper.top === el) {
                return;
            }
            tear(el, paper);
            el.next = null;
            el.prev = paper.top;
            paper.top.next = el;
            paper.top = el;
        },
        toback = R._toback = function (el, paper) {
            if (paper.bottom === el) {
                return;
            }
            tear(el, paper);
            el.next = paper.bottom;
            el.prev = null;
            paper.bottom.prev = el;
            paper.bottom = el;
        },
        insertafter = R._insertafter = function (el, el2, paper) {
            tear(el, paper);
            el2 == paper.top && (paper.top = el);
            el2.next && (el2.next.prev = el);
            el.next = el2.next;
            el.prev = el2;
            el2.next = el;
        },
        insertbefore = R._insertbefore = function (el, el2, paper) {
            tear(el, paper);
            el2 == paper.bottom && (paper.bottom = el);
            el2.prev && (el2.prev.next = el);
            el.prev = el2.prev;
            el2.prev = el;
            el.next = el2;
        },
    /*\
     * Raphael.toMatrix
     [ method ]
     **
     * Utility method
     **
     * Returns matrix of transformations applied to a given path
     > Parameters
     - path (string) path string
     - transform (string|array) transformation string
     = (object) @Matrix
     \*/
        toMatrix = R.toMatrix = function (path, transform) {
            var bb = pathDimensions(path),
                el = {
                    _: {
                        transform: E
                    },
                    getBBox: function () {
                        return bb;
                    }
                };
            extractTransform(el, transform);
            return el.matrix;
        },
    /*\
     * Raphael.transformPath
     [ method ]
     **
     * Utility method
     **
     * Returns path transformed by a given transformation
     > Parameters
     - path (string) path string
     - transform (string|array) transformation string
     = (string) path
     \*/
        transformPath = R.transformPath = function (path, transform) {
            return mapPath(path, toMatrix(path, transform));
        },
        extractTransform = R._extractTransform = function (el, tstr) {
            if (tstr == null) {
                return el._.transform;
            }
            tstr = Str(tstr).replace(/\.{3}|\u2026/g, el._.transform || E);
            var tdata = R.parseTransformString(tstr),
                deg = 0,
                dx = 0,
                dy = 0,
                sx = 1,
                sy = 1,
                _ = el._,
                m = new Matrix;
            _.transform = tdata || [];
            if (tdata) {
                for (var i = 0, ii = tdata.length; i < ii; i++) {
                    var t = tdata[i],
                        tlen = t.length,
                        command = Str(t[0]).toLowerCase(),
                        absolute = t[0] != command,
                        inver = absolute ? m.invert() : 0,
                        x1,
                        y1,
                        x2,
                        y2,
                        bb;
                    if (command == "t" && tlen == 3) {
                        if (absolute) {
                            x1 = inver.x(0, 0);
                            y1 = inver.y(0, 0);
                            x2 = inver.x(t[1], t[2]);
                            y2 = inver.y(t[1], t[2]);
                            m.translate(x2 - x1, y2 - y1);
                        } else {
                            m.translate(t[1], t[2]);
                        }
                    } else if (command == "r") {
                        if (tlen == 2) {
                            bb = bb || el.getBBox(1);
                            m.rotate(t[1], bb.x + bb.width / 2, bb.y + bb.height / 2);
                            deg += t[1];
                        } else if (tlen == 4) {
                            if (absolute) {
                                x2 = inver.x(t[2], t[3]);
                                y2 = inver.y(t[2], t[3]);
                                m.rotate(t[1], x2, y2);
                            } else {
                                m.rotate(t[1], t[2], t[3]);
                            }
                            deg += t[1];
                        }
                    } else if (command == "s") {
                        if (tlen == 2 || tlen == 3) {
                            bb = bb || el.getBBox(1);
                            m.scale(t[1], t[tlen - 1], bb.x + bb.width / 2, bb.y + bb.height / 2);
                            sx *= t[1];
                            sy *= t[tlen - 1];
                        } else if (tlen == 5) {
                            if (absolute) {
                                x2 = inver.x(t[3], t[4]);
                                y2 = inver.y(t[3], t[4]);
                                m.scale(t[1], t[2], x2, y2);
                            } else {
                                m.scale(t[1], t[2], t[3], t[4]);
                            }
                            sx *= t[1];
                            sy *= t[2];
                        }
                    } else if (command == "m" && tlen == 7) {
                        m.add(t[1], t[2], t[3], t[4], t[5], t[6]);
                    }
                    _.dirtyT = 1;
                    el.matrix = m;
                }
            }

            /*\
             * Element.matrix
             [ property (object) ]
             **
             * Keeps @Matrix object, which represents element transformation
             \*/
            el.matrix = m;

            _.sx = sx;
            _.sy = sy;
            _.deg = deg;
            _.dx = dx = m.e;
            _.dy = dy = m.f;

            if (sx == 1 && sy == 1 && !deg && _.bbox) {
                _.bbox.x += +dx;
                _.bbox.y += +dy;
            } else {
                _.dirtyT = 1;
            }
        },
        getEmpty = function (item) {
            var l = item[0];
            switch (l.toLowerCase()) {
                case "t": return [l, 0, 0];
                case "m": return [l, 1, 0, 0, 1, 0, 0];
                case "r": if (item.length == 4) {
                    return [l, 0, item[2], item[3]];
                } else {
                    return [l, 0];
                }
                case "s": if (item.length == 5) {
                    return [l, 1, 1, item[3], item[4]];
                } else if (item.length == 3) {
                    return [l, 1, 1];
                } else {
                    return [l, 1];
                }
            }
        },
        equaliseTransform = R._equaliseTransform = function (t1, t2) {
            t2 = Str(t2).replace(/\.{3}|\u2026/g, t1);
            t1 = R.parseTransformString(t1) || [];
            t2 = R.parseTransformString(t2) || [];
            var maxlength = mmax(t1.length, t2.length),
                from = [],
                to = [],
                i = 0, j, jj,
                tt1, tt2;
            for (; i < maxlength; i++) {
                tt1 = t1[i] || getEmpty(t2[i]);
                tt2 = t2[i] || getEmpty(tt1);
                if ((tt1[0] != tt2[0]) ||
                    (tt1[0].toLowerCase() == "r" && (tt1[2] != tt2[2] || tt1[3] != tt2[3])) ||
                    (tt1[0].toLowerCase() == "s" && (tt1[3] != tt2[3] || tt1[4] != tt2[4]))
                ) {
                    return;
                }
                from[i] = [];
                to[i] = [];
                for (j = 0, jj = mmax(tt1.length, tt2.length); j < jj; j++) {
                    j in tt1 && (from[i][j] = tt1[j]);
                    j in tt2 && (to[i][j] = tt2[j]);
                }
            }
            return {
                from: from,
                to: to
            };
        };
    R._getContainer = function (x, y, w, h) {
        var container;
        container = h == null && !R.is(x, "object") ? g.doc.getElementById(x) : x;
        if (container == null) {
            return;
        }
        if (container.tagName) {
            if (y == null) {
                return {
                    container: container,
                    width: container.style.pixelWidth || container.offsetWidth,
                    height: container.style.pixelHeight || container.offsetHeight
                };
            } else {
                return {
                    container: container,
                    width: y,
                    height: w
                };
            }
        }
        return {
            container: 1,
            x: x,
            y: y,
            width: w,
            height: h
        };
    };
    /*\
     * Raphael.pathToRelative
     [ method ]
     **
     * Utility method
     **
     * Converts path to relative form
     > Parameters
     - pathString (string|array) path string or array of segments
     = (array) array of segments.
     \*/
    R.pathToRelative = pathToRelative;
    R._engine = {};
    /*\
     * Raphael.path2curve
     [ method ]
     **
     * Utility method
     **
     * Converts path to a new path where all segments are cubic bezier curves.
     > Parameters
     - pathString (string|array) path string or array of segments
     = (array) array of segments.
     \*/
    R.path2curve = path2curve;
    /*\
     * Raphael.matrix
     [ method ]
     **
     * Utility method
     **
     * Returns matrix based on given parameters.
     > Parameters
     - a (number)
     - b (number)
     - c (number)
     - d (number)
     - e (number)
     - f (number)
     = (object) @Matrix
     \*/
    R.matrix = function (a, b, c, d, e, f) {
        return new Matrix(a, b, c, d, e, f);
    };
    function Matrix(a, b, c, d, e, f) {
        if (a != null) {
            this.a = +a;
            this.b = +b;
            this.c = +c;
            this.d = +d;
            this.e = +e;
            this.f = +f;
        } else {
            this.a = 1;
            this.b = 0;
            this.c = 0;
            this.d = 1;
            this.e = 0;
            this.f = 0;
        }
    }
    (function (matrixproto) {
        /*\
         * Matrix.add
         [ method ]
         **
         * Adds given matrix to existing one.
         > Parameters
         - a (number)
         - b (number)
         - c (number)
         - d (number)
         - e (number)
         - f (number)
         or
         - matrix (object) @Matrix
         \*/
        matrixproto.add = function (a, b, c, d, e, f) {
            var out = [[], [], []],
                m = [[this.a, this.c, this.e], [this.b, this.d, this.f], [0, 0, 1]],
                matrix = [[a, c, e], [b, d, f], [0, 0, 1]],
                x, y, z, res;

            if (a && a instanceof Matrix) {
                matrix = [[a.a, a.c, a.e], [a.b, a.d, a.f], [0, 0, 1]];
            }

            for (x = 0; x < 3; x++) {
                for (y = 0; y < 3; y++) {
                    res = 0;
                    for (z = 0; z < 3; z++) {
                        res += m[x][z] * matrix[z][y];
                    }
                    out[x][y] = res;
                }
            }
            this.a = out[0][0];
            this.b = out[1][0];
            this.c = out[0][1];
            this.d = out[1][1];
            this.e = out[0][2];
            this.f = out[1][2];
        };
        /*\
         * Matrix.invert
         [ method ]
         **
         * Returns inverted version of the matrix
         = (object) @Matrix
         \*/
        matrixproto.invert = function () {
            var me = this,
                x = me.a * me.d - me.b * me.c;
            return new Matrix(me.d / x, -me.b / x, -me.c / x, me.a / x, (me.c * me.f - me.d * me.e) / x, (me.b * me.e - me.a * me.f) / x);
        };
        /*\
         * Matrix.clone
         [ method ]
         **
         * Returns copy of the matrix
         = (object) @Matrix
         \*/
        matrixproto.clone = function () {
            return new Matrix(this.a, this.b, this.c, this.d, this.e, this.f);
        };
        /*\
         * Matrix.translate
         [ method ]
         **
         * Translate the matrix
         > Parameters
         - x (number)
         - y (number)
         \*/
        matrixproto.translate = function (x, y) {
            this.add(1, 0, 0, 1, x, y);
        };
        /*\
         * Matrix.scale
         [ method ]
         **
         * Scales the matrix
         > Parameters
         - x (number)
         - y (number) #optional
         - cx (number) #optional
         - cy (number) #optional
         \*/
        matrixproto.scale = function (x, y, cx, cy) {
            y == null && (y = x);
            (cx || cy) && this.add(1, 0, 0, 1, cx, cy);
            this.add(x, 0, 0, y, 0, 0);
            (cx || cy) && this.add(1, 0, 0, 1, -cx, -cy);
        };
        /*\
         * Matrix.rotate
         [ method ]
         **
         * Rotates the matrix
         > Parameters
         - a (number)
         - x (number)
         - y (number)
         \*/
        matrixproto.rotate = function (a, x, y) {
            a = R.rad(a);
            x = x || 0;
            y = y || 0;
            var cos = +math.cos(a).toFixed(9),
                sin = +math.sin(a).toFixed(9);
            this.add(cos, sin, -sin, cos, x, y);
            this.add(1, 0, 0, 1, -x, -y);
        };
        /*\
         * Matrix.x
         [ method ]
         **
         * Return x coordinate for given point after transformation described by the matrix. See also @Matrix.y
         > Parameters
         - x (number)
         - y (number)
         = (number) x
         \*/
        matrixproto.x = function (x, y) {
            return x * this.a + y * this.c + this.e;
        };
        /*\
         * Matrix.y
         [ method ]
         **
         * Return y coordinate for given point after transformation described by the matrix. See also @Matrix.x
         > Parameters
         - x (number)
         - y (number)
         = (number) y
         \*/
        matrixproto.y = function (x, y) {
            return x * this.b + y * this.d + this.f;
        };
        matrixproto.get = function (i) {
            return +this[Str.fromCharCode(97 + i)].toFixed(4);
        };
        matrixproto.toString = function () {
            return R.svg ?
            "matrix(" + [this.get(0), this.get(1), this.get(2), this.get(3), this.get(4), this.get(5)].join() + ")" :
                [this.get(0), this.get(2), this.get(1), this.get(3), 0, 0].join();
        };
        matrixproto.toFilter = function () {
            return "progid:DXImageTransform.Microsoft.Matrix(M11=" + this.get(0) +
                ", M12=" + this.get(2) + ", M21=" + this.get(1) + ", M22=" + this.get(3) +
                ", Dx=" + this.get(4) + ", Dy=" + this.get(5) + ", sizingmethod='auto expand')";
        };
        matrixproto.offset = function () {
            return [this.e.toFixed(4), this.f.toFixed(4)];
        };
        function norm(a) {
            return a[0] * a[0] + a[1] * a[1];
        }
        function normalize(a) {
            var mag = math.sqrt(norm(a));
            a[0] && (a[0] /= mag);
            a[1] && (a[1] /= mag);
        }
        /*\
         * Matrix.split
         [ method ]
         **
         * Splits matrix into primitive transformations
         = (object) in format:
         o dx (number) translation by x
         o dy (number) translation by y
         o scalex (number) scale by x
         o scaley (number) scale by y
         o shear (number) shear
         o rotate (number) rotation in deg
         o isSimple (boolean) could it be represented via simple transformations
         \*/
        matrixproto.split = function () {
            var out = {};
            // translation
            out.dx = this.e;
            out.dy = this.f;

            // scale and shear
            var row = [[this.a, this.c], [this.b, this.d]];
            out.scalex = math.sqrt(norm(row[0]));
            normalize(row[0]);

            out.shear = row[0][0] * row[1][0] + row[0][1] * row[1][1];
            row[1] = [row[1][0] - row[0][0] * out.shear, row[1][1] - row[0][1] * out.shear];

            out.scaley = math.sqrt(norm(row[1]));
            normalize(row[1]);
            out.shear /= out.scaley;

            // rotation
            var sin = -row[0][1],
                cos = row[1][1];
            if (cos < 0) {
                out.rotate = R.deg(math.acos(cos));
                if (sin < 0) {
                    out.rotate = 360 - out.rotate;
                }
            } else {
                out.rotate = R.deg(math.asin(sin));
            }

            out.isSimple = !+out.shear.toFixed(9) && (out.scalex.toFixed(9) == out.scaley.toFixed(9) || !out.rotate);
            out.isSuperSimple = !+out.shear.toFixed(9) && out.scalex.toFixed(9) == out.scaley.toFixed(9) && !out.rotate;
            out.noRotation = !+out.shear.toFixed(9) && !out.rotate;
            return out;
        };
        /*\
         * Matrix.toTransformString
         [ method ]
         **
         * Return transform string that represents given matrix
         = (string) transform string
         \*/
        matrixproto.toTransformString = function (shorter) {
            var s = shorter || this[split]();
            if (s.isSimple) {
                s.scalex = +s.scalex.toFixed(4);
                s.scaley = +s.scaley.toFixed(4);
                s.rotate = +s.rotate.toFixed(4);
                return  (s.dx || s.dy ? "t" + [s.dx, s.dy] : E) +
                    (s.scalex != 1 || s.scaley != 1 ? "s" + [s.scalex, s.scaley, 0, 0] : E) +
                    (s.rotate ? "r" + [s.rotate, 0, 0] : E);
            } else {
                return "m" + [this.get(0), this.get(1), this.get(2), this.get(3), this.get(4), this.get(5)];
            }
        };
    })(Matrix.prototype);

    var preventDefault = function () {
            this.returnValue = false;
        },
        preventTouch = function () {
            return this.originalEvent.preventDefault();
        },
        stopPropagation = function () {
            this.cancelBubble = true;
        },
        stopTouch = function () {
            return this.originalEvent.stopPropagation();
        },
        getEventPosition = function (e) {
            var scrollY = g.doc.documentElement.scrollTop || g.doc.body.scrollTop,
                scrollX = g.doc.documentElement.scrollLeft || g.doc.body.scrollLeft;

            return {
                x: e.clientX + scrollX,
                y: e.clientY + scrollY
            };
        },
        addEvent = (function () {
            if (g.doc.addEventListener) {
                return function (obj, type, fn, element) {
                    var f = function (e) {
                        var pos = getEventPosition(e);
                        return fn.call(element, e, pos.x, pos.y);
                    };
                    obj.addEventListener(type, f, false);

                    if (supportsTouch && touchMap[type]) {
                        var _f = function (e) {
                            var pos = getEventPosition(e),
                                olde = e;

                            for (var i = 0, ii = e.targetTouches && e.targetTouches.length; i < ii; i++) {
                                if (e.targetTouches[i].target == obj) {
                                    e = e.targetTouches[i];
                                    e.originalEvent = olde;
                                    e.preventDefault = preventTouch;
                                    e.stopPropagation = stopTouch;
                                    break;
                                }
                            }

                            return fn.call(element, e, pos.x, pos.y);
                        };
                        obj.addEventListener(touchMap[type], _f, false);
                    }

                    return function () {
                        obj.removeEventListener(type, f, false);

                        if (supportsTouch && touchMap[type])
                            obj.removeEventListener(touchMap[type], _f, false);

                        return true;
                    };
                };
            } else if (g.doc.attachEvent) {
                return function (obj, type, fn, element) {
                    var f = function (e) {
                        e = e || g.win.event;
                        var scrollY = g.doc.documentElement.scrollTop || g.doc.body.scrollTop,
                            scrollX = g.doc.documentElement.scrollLeft || g.doc.body.scrollLeft,
                            x = e.clientX + scrollX,
                            y = e.clientY + scrollY;
                        e.preventDefault = e.preventDefault || preventDefault;
                        e.stopPropagation = e.stopPropagation || stopPropagation;
                        return fn.call(element, e, x, y);
                    };
                    obj.attachEvent("on" + type, f);
                    var detacher = function () {
                        obj.detachEvent("on" + type, f);
                        return true;
                    };
                    return detacher;
                };
            }
        })(),
        drag = [],
        dragMove = function (e) {
            var x = e.clientX,
                y = e.clientY,
                scrollY = g.doc.documentElement.scrollTop || g.doc.body.scrollTop,
                scrollX = g.doc.documentElement.scrollLeft || g.doc.body.scrollLeft,
                dragi,
                j = drag.length;
            while (j--) {
                dragi = drag[j];
                if (supportsTouch && e.touches) {
                    var i = e.touches.length,
                        touch;
                    while (i--) {
                        touch = e.touches[i];
                        if (touch.identifier == dragi.el._drag.id) {
                            x = touch.clientX;
                            y = touch.clientY;
                            (e.originalEvent ? e.originalEvent : e).preventDefault();
                            break;
                        }
                    }
                } else {
                    e.preventDefault();
                }
                var node = dragi.el.node,
                    o,
                    next = node.nextSibling,
                    parent = node.parentNode,
                    display = node.style.display;
                g.win.opera && parent.removeChild(node);
                node.style.display = "none";
                o = dragi.el.paper.getElementByPoint(x, y);
                node.style.display = display;
                g.win.opera && (next ? parent.insertBefore(node, next) : parent.appendChild(node));
                o && eve("raphael.drag.over." + dragi.el.id, dragi.el, o);
                x += scrollX;
                y += scrollY;
                eve("raphael.drag.move." + dragi.el.id, dragi.move_scope || dragi.el, x - dragi.el._drag.x, y - dragi.el._drag.y, x, y, e);
            }
        },
        dragUp = function (e) {
            R.unmousemove(dragMove).unmouseup(dragUp);
            var i = drag.length,
                dragi;
            while (i--) {
                dragi = drag[i];
                dragi.el._drag = {};
                eve("raphael.drag.end." + dragi.el.id, dragi.end_scope || dragi.start_scope || dragi.move_scope || dragi.el, e);
            }
            drag = [];
        },
    /*\
     * Raphael.el
     [ property (object) ]
     **
     * You can add your own method to elements. This is usefull when you want to hack default functionality or
     * want to wrap some common transformation or attributes in one method. In difference to canvas methods,
     * you can redefine element method at any time. Expending element methods wouldn’t affect set.
     > Usage
     | Raphael.el.red = function () {
     |     this.attr({fill: "#f00"});
     | };
     | // then use it
     | paper.circle(100, 100, 20).red();
     \*/
        elproto = R.el = {};
    /*\
     * Element.click
     [ method ]
     **
     * Adds event handler for click for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unclick
     [ method ]
     **
     * Removes event handler for click for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.dblclick
     [ method ]
     **
     * Adds event handler for double click for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.undblclick
     [ method ]
     **
     * Removes event handler for double click for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.mousedown
     [ method ]
     **
     * Adds event handler for mousedown for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unmousedown
     [ method ]
     **
     * Removes event handler for mousedown for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.mousemove
     [ method ]
     **
     * Adds event handler for mousemove for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unmousemove
     [ method ]
     **
     * Removes event handler for mousemove for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.mouseout
     [ method ]
     **
     * Adds event handler for mouseout for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unmouseout
     [ method ]
     **
     * Removes event handler for mouseout for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.mouseover
     [ method ]
     **
     * Adds event handler for mouseover for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unmouseover
     [ method ]
     **
     * Removes event handler for mouseover for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.mouseup
     [ method ]
     **
     * Adds event handler for mouseup for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.unmouseup
     [ method ]
     **
     * Removes event handler for mouseup for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.touchstart
     [ method ]
     **
     * Adds event handler for touchstart for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.untouchstart
     [ method ]
     **
     * Removes event handler for touchstart for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.touchmove
     [ method ]
     **
     * Adds event handler for touchmove for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.untouchmove
     [ method ]
     **
     * Removes event handler for touchmove for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.touchend
     [ method ]
     **
     * Adds event handler for touchend for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.untouchend
     [ method ]
     **
     * Removes event handler for touchend for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/

    /*\
     * Element.touchcancel
     [ method ]
     **
     * Adds event handler for touchcancel for the element.
     > Parameters
     - handler (function) handler for the event
     = (object) @Element
     \*/
    /*\
     * Element.untouchcancel
     [ method ]
     **
     * Removes event handler for touchcancel for the element.
     > Parameters
     - handler (function) #optional handler for the event
     = (object) @Element
     \*/
    for (var i = events.length; i--;) {
        (function (eventName) {
            R[eventName] = elproto[eventName] = function (fn, scope) {
                if (R.is(fn, "function")) {
                    this.events = this.events || [];
                    this.events.push({name: eventName, f: fn, unbind: addEvent(this.shape || this.node || g.doc, eventName, fn, scope || this)});
                }
                return this;
            };
            R["un" + eventName] = elproto["un" + eventName] = function (fn) {
                var events = this.events || [],
                    l = events.length;
                while (l--){
                    if (events[l].name == eventName && (R.is(fn, "undefined") || events[l].f == fn)) {
                        events[l].unbind();
                        events.splice(l, 1);
                        !events.length && delete this.events;
                    }
                }
                return this;
            };
        })(events[i]);
    }

    /*\
     * Element.data
     [ method ]
     **
     * Adds or retrieves given value asociated with given key.
     **
     * See also @Element.removeData
     > Parameters
     - key (string) key to store data
     - value (any) #optional value to store
     = (object) @Element
     * or, if value is not specified:
     = (any) value
     * or, if key and value are not specified:
     = (object) Key/value pairs for all the data associated with the element.
     > Usage
     | for (var i = 0, i < 5, i++) {
     |     paper.circle(10 + 15 * i, 10, 10)
     |          .attr({fill: "#000"})
     |          .data("i", i)
     |          .click(function () {
     |             alert(this.data("i"));
     |          });
     | }
     \*/
    elproto.data = function (key, value) {
        var data = eldata[this.id] = eldata[this.id] || {};
        if (arguments.length == 0) {
            return data;
        }
        if (arguments.length == 1) {
            if (R.is(key, "object")) {
                for (var i in key) if (key[has](i)) {
                    this.data(i, key[i]);
                }
                return this;
            }
            eve("raphael.data.get." + this.id, this, data[key], key);
            return data[key];
        }
        data[key] = value;
        eve("raphael.data.set." + this.id, this, value, key);
        return this;
    };

    elproto.datum = function(){
        return arguments.length == 0 ? this._bindData : ((this._bindData = arguments[0]), this);
    };

    /*\
     * Element.removeData
     [ method ]
     **
     * Removes value associated with an element by given key.
     * If key is not provided, removes all the data of the element.
     > Parameters
     - key (string) #optional key
     = (object) @Element
     \*/
    elproto.removeData = function (key) {
        if (key == null) {
            eldata[this.id] = {};
        } else {
            eldata[this.id] && delete eldata[this.id][key];
        }
        return this;
    };
    /*\
     * Element.getData
     [ method ]
     **
     * Retrieves the element data
     = (object) data
     \*/
    elproto.getData = function () {
        return clone(eldata[this.id] || {});
    };
    /*\
     * Element.hover
     [ method ]
     **
     * Adds event handlers for hover for the element.
     > Parameters
     - f_in (function) handler for hover in
     - f_out (function) handler for hover out
     - icontext (object) #optional context for hover in handler
     - ocontext (object) #optional context for hover out handler
     = (object) @Element
     \*/
    elproto.hover = function (f_in, f_out, scope_in, scope_out) {
        return this.mouseover(f_in, scope_in).mouseout(f_out, scope_out || scope_in);
    };
    /*\
     * Element.unhover
     [ method ]
     **
     * Removes event handlers for hover for the element.
     > Parameters
     - f_in (function) handler for hover in
     - f_out (function) handler for hover out
     = (object) @Element
     \*/
    elproto.unhover = function (f_in, f_out) {
        return this.unmouseover(f_in).unmouseout(f_out);
    };
    var draggable = [];
    /*\
     * Element.drag
     [ method ]
     **
     * Adds event handlers for drag of the element.
     > Parameters
     - onmove (function) handler for moving
     - onstart (function) handler for drag start
     - onend (function) handler for drag end
     - mcontext (object) #optional context for moving handler
     - scontext (object) #optional context for drag start handler
     - econtext (object) #optional context for drag end handler
     * Additionaly following `drag` events will be triggered: `drag.start.<id>` on start,
     * `drag.end.<id>` on end and `drag.move.<id>` on every move. When element will be dragged over another element
     * `drag.over.<id>` will be fired as well.
     *
     * Start event and start handler will be called in specified context or in context of the element with following parameters:
     o x (number) x position of the mouse
     o y (number) y position of the mouse
     o event (object) DOM event object
     * Move event and move handler will be called in specified context or in context of the element with following parameters:
     o dx (number) shift by x from the start point
     o dy (number) shift by y from the start point
     o x (number) x position of the mouse
     o y (number) y position of the mouse
     o event (object) DOM event object
     * End event and end handler will be called in specified context or in context of the element with following parameters:
     o event (object) DOM event object
     = (object) @Element
     \*/
    elproto.drag = function (onmove, onstart, onend, move_scope, start_scope, end_scope) {
        function start(e) {
            (e.originalEvent || e).preventDefault();
            var x = e.clientX,
                y = e.clientY,
                scrollY = g.doc.documentElement.scrollTop || g.doc.body.scrollTop,
                scrollX = g.doc.documentElement.scrollLeft || g.doc.body.scrollLeft;
            this._drag.id = e.identifier;
            if (supportsTouch && e.touches) {
                var i = e.touches.length, touch;
                while (i--) {
                    touch = e.touches[i];
                    this._drag.id = touch.identifier;
                    if (touch.identifier == this._drag.id) {
                        x = touch.clientX;
                        y = touch.clientY;
                        break;
                    }
                }
            }
            this._drag.x = x + scrollX;
            this._drag.y = y + scrollY;
            !drag.length && R.mousemove(dragMove).mouseup(dragUp);
            drag.push({el: this, move_scope: move_scope, start_scope: start_scope, end_scope: end_scope});
            onstart && eve.on("raphael.drag.start." + this.id, onstart);
            onmove && eve.on("raphael.drag.move." + this.id, onmove);
            onend && eve.on("raphael.drag.end." + this.id, onend);
            eve("raphael.drag.start." + this.id, start_scope || move_scope || this, e.clientX + scrollX, e.clientY + scrollY, e);
        }
        this._drag = {};
        draggable.push({el: this, start: start});
        this.mousedown(start);
        return this;
    };
    /*\
     * Element.onDragOver
     [ method ]
     **
     * Shortcut for assigning event handler for `drag.over.<id>` event, where id is id of the element (see @Element.id).
     > Parameters
     - f (function) handler for event, first argument would be the element you are dragging over
     \*/
    elproto.onDragOver = function (f) {
        f ? eve.on("raphael.drag.over." + this.id, f) : eve.unbind("raphael.drag.over." + this.id);
    };
    /*\
     * Element.undrag
     [ method ]
     **
     * Removes all drag event handlers from given element.
     \*/
    elproto.undrag = function () {
        var i = draggable.length;
        while (i--) if (draggable[i].el == this) {
            this.unmousedown(draggable[i].start);
            draggable.splice(i, 1);
            eve.unbind("raphael.drag.*." + this.id);
        }
        !draggable.length && R.unmousemove(dragMove).unmouseup(dragUp);
        drag = [];
    };
    /*\
     * Paper.circle
     [ method ]
     **
     * Draws a circle.
     **
     > Parameters
     **
     - x (number) x coordinate of the centre
     - y (number) y coordinate of the centre
     - r (number) radius
     = (object) Raphaël element object with type “circle”
     **
     > Usage
     | var c = paper.circle(50, 50, 40);
     \*/
    paperproto.circle = function (x, y, r) {
        var out = R._engine.circle(this, x || 0, y || 0, r || 0);
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.rect
     [ method ]
     *
     * Draws a rectangle.
     **
     > Parameters
     **
     - x (number) x coordinate of the top left corner
     - y (number) y coordinate of the top left corner
     - width (number) width
     - height (number) height
     - r (number) #optional radius for rounded corners, default is 0
     = (object) Raphaël element object with type “rect”
     **
     > Usage
     | // regular rectangle
     | var c = paper.rect(10, 10, 50, 50);
     | // rectangle with rounded corners
     | var c = paper.rect(40, 40, 50, 50, 10);
     \*/
    paperproto.rect = function (x, y, w, h, r) {
        var out = R._engine.rect(this, x || 0, y || 0, w || 0, h || 0, r || 0);
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.ellipse
     [ method ]
     **
     * Draws an ellipse.
     **
     > Parameters
     **
     - x (number) x coordinate of the centre
     - y (number) y coordinate of the centre
     - rx (number) horizontal radius
     - ry (number) vertical radius
     = (object) Raphaël element object with type “ellipse”
     **
     > Usage
     | var c = paper.ellipse(50, 50, 40, 20);
     \*/
    paperproto.ellipse = function (x, y, rx, ry) {
        var out = R._engine.ellipse(this, x || 0, y || 0, rx || 0, ry || 0);
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.path
     [ method ]
     **
     * Creates a path element by given path data string.
     > Parameters
     - pathString (string) #optional path string in SVG format.
     * Path string consists of one-letter commands, followed by comma seprarated arguments in numercal form. Example:
     | "M10,20L30,40"
     * Here we can see two commands: “M”, with arguments `(10, 20)` and “L” with arguments `(30, 40)`. Upper case letter mean command is absolute, lower case—relative.
     *
     # <p>Here is short list of commands available, for more details see <a href="http://www.w3.org/TR/SVG/paths.html#PathData" title="Details of a path's data attribute's format are described in the SVG specification.">SVG path string format</a>.</p>
     # <table><thead><tr><th>Command</th><th>Name</th><th>Parameters</th></tr></thead><tbody>
     # <tr><td>M</td><td>moveto</td><td>(x y)+</td></tr>
     # <tr><td>Z</td><td>closepath</td><td>(none)</td></tr>
     # <tr><td>L</td><td>lineto</td><td>(x y)+</td></tr>
     # <tr><td>H</td><td>horizontal lineto</td><td>x+</td></tr>
     # <tr><td>V</td><td>vertical lineto</td><td>y+</td></tr>
     # <tr><td>C</td><td>curveto</td><td>(x1 y1 x2 y2 x y)+</td></tr>
     # <tr><td>S</td><td>smooth curveto</td><td>(x2 y2 x y)+</td></tr>
     # <tr><td>Q</td><td>quadratic Bézier curveto</td><td>(x1 y1 x y)+</td></tr>
     # <tr><td>T</td><td>smooth quadratic Bézier curveto</td><td>(x y)+</td></tr>
     # <tr><td>A</td><td>elliptical arc</td><td>(rx ry x-axis-rotation large-arc-flag sweep-flag x y)+</td></tr>
     # <tr><td>R</td><td><a href="http://en.wikipedia.org/wiki/Catmull–Rom_spline#Catmull.E2.80.93Rom_spline">Catmull-Rom curveto</a>*</td><td>x1 y1 (x y)+</td></tr></tbody></table>
     * * “Catmull-Rom curveto” is a not standard SVG command and added in 2.0 to make life easier.
     * Note: there is a special case when path consist of just three commands: “M10,10R…z”. In this case path will smoothly connects to its beginning.
     > Usage
     | var c = paper.path("M10 10L90 90");
     | // draw a diagonal line:
     | // move to 10,10, line to 90,90
     * For example of path strings, check out these icons: http://raphaeljs.com/icons/
     \*/
    paperproto.path = function (pathString) {
        pathString && !R.is(pathString, string) && !R.is(pathString[0], array) && (pathString += E);
        var out = R._engine.path(R.format[apply](R, arguments), this);
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.image
     [ method ]
     **
     * Embeds an image into the surface.
     **
     > Parameters
     **
     - src (string) URI of the source image
     - x (number) x coordinate position
     - y (number) y coordinate position
     - width (number) width of the image
     - height (number) height of the image
     = (object) Raphaël element object with type “image”
     **
     > Usage
     | var c = paper.image("apple.png", 10, 10, 80, 80);
     \*/
    paperproto.image = function (src, x, y, w, h) {
        var out = R._engine.image(this, src || "about:blank", x || 0, y || 0, w || 0, h || 0);
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.text
     [ method ]
     **
     * Draws a text string. If you need line breaks, put “\n” in the string.
     **
     > Parameters
     **
     - x (number) x coordinate position
     - y (number) y coordinate position
     - text (string) The text string to draw
     = (object) Raphaël element object with type “text”
     **
     > Usage
     | var t = paper.text(50, 50, "Raphaël\nkicks\nbutt!");
     \*/
    paperproto.text = function (x, y, text) {
        var out = R._engine.text(this, x || 0, y || 0, Str(text));
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Paper.set
     [ method ]
     **
     * Creates array-like object to keep and operate several elements at once.
     * Warning: it doesn’t create any elements for itself in the page, it just groups existing elements.
     * Sets act as pseudo elements — all methods available to an element can be used on a set.
     = (object) array-like object that represents set of elements
     **
     > Usage
     | var st = paper.set();
     | st.push(
     |     paper.circle(10, 10, 5),
     |     paper.circle(30, 10, 5)
     | );
     | st.attr({fill: "red"}); // changes the fill of both circles
     \*/
    paperproto.set = function (itemsArray) {
        !R.is(itemsArray, "array") && (itemsArray = Array.prototype.splice.call(arguments, 0, arguments.length));
        var out = new Set(itemsArray);
        this.__set__ && this.__set__.push(out);
        out["paper"] = this;
        out["type"] = "set";
        return out;
    };
    /*\
     * Paper.setStart
     [ method ]
     **
     * Creates @Paper.set. All elements that will be created after calling this method and before calling
     * @Paper.setFinish will be added to the set.
     **
     > Usage
     | paper.setStart();
     | paper.circle(10, 10, 5),
     | paper.circle(30, 10, 5)
     | var st = paper.setFinish();
     | st.attr({fill: "red"}); // changes the fill of both circles
     \*/
    paperproto.setStart = function (set) {
        this.__set__ = set || this.set();
    };
    /*\
     * Paper.setFinish
     [ method ]
     **
     * See @Paper.setStart. This method finishes catching and returns resulting set.
     **
     = (object) set
     \*/
    paperproto.setFinish = function (set) {
        var out = this.__set__;
        delete this.__set__;
        return out;
    };
    /*\
     * Paper.getSize
     [ method ]
     **
     * Obtains current paper actual size.
     **
     = (object)
     \*/
    paperproto.getSize = function () {
        var container = this.canvas.parentNode;
        return {
            width: container.offsetWidth,
            height: container.offsetHeight
        };
    };
    /*\
     * Paper.setSize
     [ method ]
     **
     * If you need to change dimensions of the canvas call this method
     **
     > Parameters
     **
     - width (number) new width of the canvas
     - height (number) new height of the canvas
     \*/
    paperproto.setSize = function (width, height) {
        return R._engine.setSize.call(this, width, height);
    };
    /*\
     * Paper.setViewBox
     [ method ]
     **
     * Sets the view box of the paper. Practically it gives you ability to zoom and pan whole paper surface by
     * specifying new boundaries.
     **
     > Parameters
     **
     - x (number) new x position, default is `0`
     - y (number) new y position, default is `0`
     - w (number) new width of the canvas
     - h (number) new height of the canvas
     - fit (boolean) `true` if you want graphics to fit into new boundary box
     \*/
    paperproto.setViewBox = function (x, y, w, h, fit) {
        return R._engine.setViewBox.call(this, x, y, w, h, fit);
    };
    /*\
     * Paper.top
     [ property ]
     **
     * Points to the topmost element on the paper
     \*/
    /*\
     * Paper.bottom
     [ property ]
     **
     * Points to the bottom element on the paper
     \*/
    paperproto.top = paperproto.bottom = null;
    /*\
     * Paper.raphael
     [ property ]
     **
     * Points to the @Raphael object/function
     \*/
    paperproto.raphael = R;
    var getOffset = function (elem) {
        var box = elem.getBoundingClientRect(),
            doc = elem.ownerDocument,
            body = doc.body,
            docElem = doc.documentElement,
            clientTop = docElem.clientTop || body.clientTop || 0, clientLeft = docElem.clientLeft || body.clientLeft || 0,
            top  = box.top  + (g.win.pageYOffset || docElem.scrollTop || body.scrollTop ) - clientTop,
            left = box.left + (g.win.pageXOffset || docElem.scrollLeft || body.scrollLeft) - clientLeft;
        return {
            y: top,
            x: left
        };
    };
    /*\
     * Paper.getElementByPoint
     [ method ]
     **
     * Returns you topmost element under given point.
     **
     = (object) Raphaël element object
     > Parameters
     **
     - x (number) x coordinate from the top left corner of the window
     - y (number) y coordinate from the top left corner of the window
     > Usage
     | paper.getElementByPoint(mouseX, mouseY).attr({stroke: "#f00"});
     \*/
    paperproto.getElementByPoint = function (x, y) {
        var paper = this,
            svg = paper.canvas,
            target = g.doc.elementFromPoint(x, y);
        if (g.win.opera && target.tagName == "svg") {
            var so = getOffset(svg),
                sr = svg.createSVGRect();
            sr.x = x - so.x;
            sr.y = y - so.y;
            sr.width = sr.height = 1;
            var hits = svg.getIntersectionList(sr, null);
            if (hits.length) {
                target = hits[hits.length - 1];
            }
        }
        if (!target) {
            return null;
        }
        while (target.parentNode && target != svg.parentNode && !target.raphael) {
            target = target.parentNode;
        }
        target == paper.canvas.parentNode && (target = svg);
        target = target && target.raphael ? paper.getById(target.raphaelid) : null;
        return target;
    };

    /*\
     * Paper.getElementsByBBox
     [ method ]
     **
     * Returns set of elements that have an intersecting bounding box
     **
     > Parameters
     **
     - bbox (object) bbox to check with
     = (object) @Set
     \*/
    paperproto.getElementsByBBox = function (bbox) {
        var set = this.set();
        this.forEach(function (el) {
            if (R.isBBoxIntersect(el.getBBox(), bbox)) {
                set.push(el);
            }
        });
        return set;
    };

    /*\
     * Paper.getById
     [ method ]
     **
     * Returns you element by its internal ID.
     **
     > Parameters
     **
     - id (number) id
     = (object) Raphaël element object
     \*/
    paperproto.getById = function (id) {
        var bot = this.bottom;
        while (bot) {
            if (bot.id == id) {
                return bot;
            }
            bot = bot.next;
        }
        return null;
    };
    /*\
     * Paper.forEach
     [ method ]
     **
     * Executes given function for each element on the paper
     *
     * If callback function returns `false` it will stop loop running.
     **
     > Parameters
     **
     - callback (function) function to run
     - thisArg (object) context object for the callback
     = (object) Paper object
     > Usage
     | paper.forEach(function (el) {
     |     el.attr({ stroke: "blue" });
     | });
     \*/
    paperproto.forEach = function (callback, thisArg) {
        var bot = this.bottom;
        while (bot) {
            if (callback.call(thisArg, bot) === false) {
                return this;
            }
            bot = bot.next;
        }
        return this;
    };
    /*\
     * Paper.getElementsByPoint
     [ method ]
     **
     * Returns set of elements that have common point inside
     **
     > Parameters
     **
     - x (number) x coordinate of the point
     - y (number) y coordinate of the point
     = (object) @Set
     \*/
    paperproto.getElementsByPoint = function (x, y) {
        var set = this.set();
        this.forEach(function (el) {
            if (el.isPointInside(x, y)) {
                set.push(el);
            }
        });
        return set;
    };
    function x_y() {
        return this.x + S + this.y;
    }
    function x_y_w_h() {
        return this.x + S + this.y + S + this.width + " \xd7 " + this.height;
    }
    /*\
     * Element.isPointInside
     [ method ]
     **
     * Determine if given point is inside this element’s shape
     **
     > Parameters
     **
     - x (number) x coordinate of the point
     - y (number) y coordinate of the point
     = (boolean) `true` if point inside the shape
     \*/
    elproto.isPointInside = function (x, y) {
        var rp = this.realPath = getPath[this.type](this);
        if (this.attr('transform') && this.attr('transform').length) {
            rp = R.transformPath(rp, this.attr('transform'));
        }
        return R.isPointInsidePath(rp, x, y);
    };
    /*\
     * Element.getBBox
     [ method ]
     **
     * Return bounding box for a given element
     **
     > Parameters
     **
     - isWithoutTransform (boolean) flag, `true` if you want to have bounding box before transformations. Default is `false`.
     = (object) Bounding box object:
     o {
     o     x: (number) top left corner x
     o     y: (number) top left corner y
     o     x2: (number) bottom right corner x
     o     y2: (number) bottom right corner y
     o     width: (number) width
     o     height: (number) height
     o }
     \*/
    elproto.getBBox = function (isWithoutTransform) {
        if (this.removed) {
            return {};
        }
        var _ = this._;
        if (isWithoutTransform) {
            if (_.dirty || !_.bboxwt) {
                this.realPath = getPath[this.type](this);
                _.bboxwt = pathDimensions(this.realPath);
                _.bboxwt.toString = x_y_w_h;
                _.dirty = 0;
            }
            return _.bboxwt;
        }
        if (_.dirty || _.dirtyT || !_.bbox) {
            if (_.dirty || !this.realPath) {
                _.bboxwt = 0;
                this.realPath = getPath[this.type](this);
            }
            _.bbox = pathDimensions(mapPath(this.realPath, this.matrix));
            _.bbox.toString = x_y_w_h;
            _.dirty = _.dirtyT = 0;
        }
        return _.bbox;
    };
    /*\
     * Element.clone
     [ method ]
     **
     = (object) clone of a given element
     **
     \*/
    elproto.clone = function () {
        if (this.removed) {
            return null;
        }
        var out = this.paper[this.type]().attr(this.attr());
        this.__set__ && this.__set__.push(out);
        return out;
    };
    /*\
     * Element.glow
     [ method ]
     **
     * Return set of elements that create glow-like effect around given element. See @Paper.set.
     *
     * Note: Glow is not connected to the element. If you change element attributes it won’t adjust itself.
     **
     > Parameters
     **
     - glow (object) #optional parameters object with all properties optional:
     o {
     o     width (number) size of the glow, default is `10`
     o     fill (boolean) will it be filled, default is `false`
     o     opacity (number) opacity, default is `0.5`
     o     offsetx (number) horizontal offset, default is `0`
     o     offsety (number) vertical offset, default is `0`
     o     color (string) glow colour, default is `black`
     o }
     = (object) @Paper.set of elements that represents glow
     \*/
    elproto.glow = function (glow) {
        if (this.type == "text") {
            return null;
        }
        glow = glow || {};
        var s = {
                width: (glow.width || 10) + (+this.attr("stroke-width") || 1),
                fill: glow.fill || false,
                opacity: glow.opacity == null ? .5 : glow.opacity,
                offsetx: glow.offsetx || 0,
                offsety: glow.offsety || 0,
                color: glow.color || "#000"
            },
            c = s.width / 2,
            r = this.paper,
            out = r.set(),
            path = this.realPath || getPath[this.type](this);
        path = this.matrix ? mapPath(path, this.matrix) : path;
        for (var i = 1; i < c + 1; i++) {
            out.push(r.path(path).attr({
                stroke: s.color,
                fill: s.fill ? s.color : "none",
                "stroke-linejoin": "round",
                "stroke-linecap": "round",
                "stroke-width": +(s.width / c * i).toFixed(3),
                opacity: +(s.opacity / c).toFixed(3)
            }));
        }
        return out.insertBefore(this).translate(s.offsetx, s.offsety);
    };
    var curveslengths = {},
        getPointAtSegmentLength = function (p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length) {
            if (length == null) {
                return bezlen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y);
            } else {
                return R.findDotsAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, getTatLen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length));
            }
        },
        getLengthFactory = function (istotal, subpath) {
            return function (path, length, onlystart) {
                path = path2curve(path);
                var x, y, p, l, sp = "", subpaths = {}, point,
                    len = 0;
                for (var i = 0, ii = path.length; i < ii; i++) {
                    p = path[i];
                    if (p[0] == "M") {
                        x = +p[1];
                        y = +p[2];
                    } else {
                        l = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6]);
                        if (len + l > length) {
                            if (subpath && !subpaths.start) {
                                point = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6], length - len);
                                sp += ["C" + point.start.x, point.start.y, point.m.x, point.m.y, point.x, point.y];
                                if (onlystart) {return sp;}
                                subpaths.start = sp;
                                sp = ["M" + point.x, point.y + "C" + point.n.x, point.n.y, point.end.x, point.end.y, p[5], p[6]].join();
                                len += l;
                                x = +p[5];
                                y = +p[6];
                                continue;
                            }
                            if (!istotal && !subpath) {
                                point = getPointAtSegmentLength(x, y, p[1], p[2], p[3], p[4], p[5], p[6], length - len);
                                return {x: point.x, y: point.y, alpha: point.alpha};
                            }
                        }
                        len += l;
                        x = +p[5];
                        y = +p[6];
                    }
                    sp += p.shift() + p;
                }
                subpaths.end = sp;
                point = istotal ? len : subpath ? subpaths : R.findDotsAtSegment(x, y, p[0], p[1], p[2], p[3], p[4], p[5], 1);
                point.alpha && (point = {x: point.x, y: point.y, alpha: point.alpha});
                return point;
            };
        };
    var getTotalLength = getLengthFactory(1),
        getPointAtLength = getLengthFactory(),
        getSubpathsAtLength = getLengthFactory(0, 1);
    /*\
     * Raphael.getTotalLength
     [ method ]
     **
     * Returns length of the given path in pixels.
     **
     > Parameters
     **
     - path (string) SVG path string.
     **
     = (number) length.
     \*/
    R.getTotalLength = getTotalLength;
    /*\
     * Raphael.getPointAtLength
     [ method ]
     **
     * Return coordinates of the point located at the given length on the given path.
     **
     > Parameters
     **
     - path (string) SVG path string
     - length (number)
     **
     = (object) representation of the point:
     o {
     o     x: (number) x coordinate
     o     y: (number) y coordinate
     o     alpha: (number) angle of derivative
     o }
     \*/
    R.getPointAtLength = getPointAtLength;
    /*\
     * Raphael.getSubpath
     [ method ]
     **
     * Return subpath of a given path from given length to given length.
     **
     > Parameters
     **
     - path (string) SVG path string
     - from (number) position of the start of the segment
     - to (number) position of the end of the segment
     **
     = (string) pathstring for the segment
     \*/
    R.getSubpath = function (path, from, to) {
        if (this.getTotalLength(path) - to < 1e-6) {
            return getSubpathsAtLength(path, from).end;
        }
        var a = getSubpathsAtLength(path, to, 1);
        return from ? getSubpathsAtLength(a, from).end : a;
    };
    /*\
     * Element.getTotalLength
     [ method ]
     **
     * Returns length of the path in pixels. Only works for element of “path” type.
     = (number) length.
     \*/
    elproto.getTotalLength = function () {
        var path = this.getPath();
        if (!path) {
            return;
        }

        if (this.node.getTotalLength) {
            return this.node.getTotalLength();
        }

        return getTotalLength(path);
    };
    /*\
     * Element.getPointAtLength
     [ method ]
     **
     * Return coordinates of the point located at the given length on the given path. Only works for element of “path” type.
     **
     > Parameters
     **
     - length (number)
     **
     = (object) representation of the point:
     o {
     o     x: (number) x coordinate
     o     y: (number) y coordinate
     o     alpha: (number) angle of derivative
     o }
     \*/
    elproto.getPointAtLength = function (length) {
        var path = this.getPath();
        if (!path) {
            return;
        }

        return getPointAtLength(path, length);
    };
    /*\
     * Element.getPath
     [ method ]
     **
     * Returns path of the element. Only works for elements of “path” type and simple elements like circle.
     = (object) path
     **
     \*/
    elproto.getPath = function () {
        var path,
            getPath = R._getPath[this.type];

        if (this.type == "text" || this.type == "set") {
            return;
        }

        if (getPath) {
            path = getPath(this);
        }

        return path;
    };
    /*\
     * Element.getSubpath
     [ method ]
     **
     * Return subpath of a given element from given length to given length. Only works for element of “path” type.
     **
     > Parameters
     **
     - from (number) position of the start of the segment
     - to (number) position of the end of the segment
     **
     = (string) pathstring for the segment
     \*/
    elproto.getSubpath = function (from, to) {
        var path = this.getPath();
        if (!path) {
            return;
        }

        return R.getSubpath(path, from, to);
    };
    /*\
     * Raphael.easing_formulas
     [ property ]
     **
     * Object that contains easing formulas for animation. You could extend it with your own. By default it has following list of easing:
     # <ul>
     #     <li>“linear”</li>
     #     <li>“&lt;” or “easeIn” or “ease-in”</li>
     #     <li>“>” or “easeOut” or “ease-out”</li>
     #     <li>“&lt;>” or “easeInOut” or “ease-in-out”</li>
     #     <li>“backIn” or “back-in”</li>
     #     <li>“backOut” or “back-out”</li>
     #     <li>“elastic”</li>
     #     <li>“bounce”</li>
     # </ul>
     # <p>See also <a href="http://raphaeljs.com/easing.html">Easing demo</a>.</p>
     \*/
    var ef = R.easing_formulas = {
        linear: function (n) {
            return n;
        },
        "<": function (n) {
            return pow(n, 1.7);
        },
        ">": function (n) {
            return pow(n, .48);
        },
        "<>": function (n) {
            var q = .48 - n / 1.04,
                Q = math.sqrt(.1734 + q * q),
                x = Q - q,
                X = pow(abs(x), 1 / 3) * (x < 0 ? -1 : 1),
                y = -Q - q,
                Y = pow(abs(y), 1 / 3) * (y < 0 ? -1 : 1),
                t = X + Y + .5;
            return (1 - t) * 3 * t * t + t * t * t;
        },
        backIn: function (n) {
            var s = 1.70158;
            return n * n * ((s + 1) * n - s);
        },
        backOut: function (n) {
            n = n - 1;
            var s = 1.70158;
            return n * n * ((s + 1) * n + s) + 1;
        },
        elastic: function (n) {
            if (n == !!n) {
                return n;
            }
            return pow(2, -10 * n) * math.sin((n - .075) * (2 * PI) / .3) + 1;
        },
        bounce: function (n) {
            var s = 7.5625,
                p = 2.75,
                l;
            if (n < (1 / p)) {
                l = s * n * n;
            } else {
                if (n < (2 / p)) {
                    n -= (1.5 / p);
                    l = s * n * n + .75;
                } else {
                    if (n < (2.5 / p)) {
                        n -= (2.25 / p);
                        l = s * n * n + .9375;
                    } else {
                        n -= (2.625 / p);
                        l = s * n * n + .984375;
                    }
                }
            }
            return l;
        }
    };
    ef.easeIn = ef["ease-in"] = ef["<"];
    ef.easeOut = ef["ease-out"] = ef[">"];
    ef.easeInOut = ef["ease-in-out"] = ef["<>"];
    ef["back-in"] = ef.backIn;
    ef["back-out"] = ef.backOut;

    var animationElements = [],
        requestAnimFrame = window.requestAnimationFrame       ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame    ||
            window.oRequestAnimationFrame      ||
            window.msRequestAnimationFrame     ||
            function (callback) {
                setTimeout(callback, 16);
            },
        animation = function () {
            var Now = +new Date,
                l = 0;
            for (; l < animationElements.length; l++) {
                var e = animationElements[l];
                if (e.el.removed || e.paused) {
                    continue;
                }
                var time = Now - e.start,
                    ms = e.ms,
                    easing = e.easing,
                    from = e.from,
                    diff = e.diff,
                    to = e.to,
                    t = e.t,
                    that = e.el,
                    set = {},
                    now,
                    init = {},
                    key;
                if (e.initstatus) {
                    time = (e.initstatus * e.anim.top - e.prev) / (e.percent - e.prev) * ms;
                    e.status = e.initstatus;
                    delete e.initstatus;
                    e.stop && animationElements.splice(l--, 1);
                } else {
                    e.status = (e.prev + (e.percent - e.prev) * (time / ms)) / e.anim.top;
                }
                if (time < 0) {
                    continue;
                }
                if (time < ms) {
                    var pos = easing(time / ms);
                    for (var attr in from) if (from[has](attr)) {
                        switch (availableAnimAttrs[attr]) {
                            case nu:
                                now = +from[attr] + pos * ms * diff[attr];
                                break;
                            case "colour":
                                now = "rgb(" + [
                                        upto255(round(from[attr].r + pos * ms * diff[attr].r)),
                                        upto255(round(from[attr].g + pos * ms * diff[attr].g)),
                                        upto255(round(from[attr].b + pos * ms * diff[attr].b))
                                    ].join(",") + ")";
                                break;
                            case "path":
                                now = [];
                                for (var i = 0, ii = from[attr].length; i < ii; i++) {
                                    now[i] = [from[attr][i][0]];
                                    for (var j = 1, jj = from[attr][i].length; j < jj; j++) {
                                        now[i][j] = +from[attr][i][j] + pos * ms * diff[attr][i][j];
                                    }
                                    now[i] = now[i].join(S);
                                }
                                now = now.join(S);
                                break;
                            case "transform":
                                if (diff[attr].real) {
                                    now = [];
                                    for (i = 0, ii = from[attr].length; i < ii; i++) {
                                        now[i] = [from[attr][i][0]];
                                        for (j = 1, jj = from[attr][i].length; j < jj; j++) {
                                            now[i][j] = from[attr][i][j] + pos * ms * diff[attr][i][j];
                                        }
                                    }
                                } else {
                                    var get = function (i) {
                                        return +from[attr][i] + pos * ms * diff[attr][i];
                                    };
                                    // now = [["r", get(2), 0, 0], ["t", get(3), get(4)], ["s", get(0), get(1), 0, 0]];
                                    now = [["m", get(0), get(1), get(2), get(3), get(4), get(5)]];
                                }
                                break;
                            case "csv":
                                if (attr == "clip-rect") {
                                    now = [];
                                    i = 4;
                                    while (i--) {
                                        now[i] = +from[attr][i] + pos * ms * diff[attr][i];
                                    }
                                }
                                break;
                            default:
                                var from2 = [][concat](from[attr]);
                                now = [];
                                i = that.paper.customAttributes[attr].length;
                                while (i--) {
                                    now[i] = +from2[i] + pos * ms * diff[attr][i];
                                }
                                break;
                        }
                        set[attr] = now;
                    }
                    that.attr(set);
                    (function (id, that, anim) {
                        setTimeout(function () {
                            eve("raphael.anim.frame." + id, that, anim);
                        });
                    })(that.id, that, e.anim);
                } else {
                    (function(f, el, a) {
                        setTimeout(function() {
                            eve("raphael.anim.frame." + el.id, el, a);
                            eve("raphael.anim.finish." + el.id, el, a);
                            R.is(f, "function") && f.call(el);
                        });
                    })(e.callback, that, e.anim);
                    that.attr(to);
                    animationElements.splice(l--, 1);
                    if (e.repeat > 1 && !e.next) {
                        for (key in to) if (to[has](key)) {
                            init[key] = e.totalOrigin[key];
                        }
                        e.el.attr(init);
                        runAnimation(e.anim, e.el, e.anim.percents[0], null, e.totalOrigin, e.repeat - 1);
                    }
                    if (e.next && !e.stop) {
                        runAnimation(e.anim, e.el, e.next, null, e.totalOrigin, e.repeat);
                    }
                }
            }
            animationElements.length && requestAnimFrame(animation);
        },
        upto255 = function (color) {
            return color > 255 ? 255 : color < 0 ? 0 : color;
        };
    /*\
     * Element.animateWith
     [ method ]
     **
     * Acts similar to @Element.animate, but ensure that given animation runs in sync with another given element.
     **
     > Parameters
     **
     - el (object) element to sync with
     - anim (object) animation to sync with
     - params (object) #optional final attributes for the element, see also @Element.attr
     - ms (number) #optional number of milliseconds for animation to run
     - easing (string) #optional easing type. Accept on of @Raphael.easing_formulas or CSS format: `cubic&#x2010;bezier(XX,&#160;XX,&#160;XX,&#160;XX)`
     - callback (function) #optional callback function. Will be called at the end of animation.
     * or
     - element (object) element to sync with
     - anim (object) animation to sync with
     - animation (object) #optional animation object, see @Raphael.animation
     **
     = (object) original element
     \*/
    elproto.animateWith = function (el, anim, params, ms, easing, callback) {
        var element = this;
        if (element.removed) {
            callback && callback.call(element);
            return element;
        }
        var a = params instanceof Animation ? params : R.animation(params, ms, easing, callback),
            x, y;
        runAnimation(a, element, a.percents[0], null, element.attr());
        for (var i = 0, ii = animationElements.length; i < ii; i++) {
            if (animationElements[i].anim == anim && animationElements[i].el == el) {
                animationElements[ii - 1].start = animationElements[i].start;
                break;
            }
        }
        return element;
        //
        //
        // var a = params ? R.animation(params, ms, easing, callback) : anim,
        //     status = element.status(anim);
        // return this.animate(a).status(a, status * anim.ms / a.ms);
    };
    function CubicBezierAtTime(t, p1x, p1y, p2x, p2y, duration) {
        var cx = 3 * p1x,
            bx = 3 * (p2x - p1x) - cx,
            ax = 1 - cx - bx,
            cy = 3 * p1y,
            by = 3 * (p2y - p1y) - cy,
            ay = 1 - cy - by;
        function sampleCurveX(t) {
            return ((ax * t + bx) * t + cx) * t;
        }
        function solve(x, epsilon) {
            var t = solveCurveX(x, epsilon);
            return ((ay * t + by) * t + cy) * t;
        }
        function solveCurveX(x, epsilon) {
            var t0, t1, t2, x2, d2, i;
            for(t2 = x, i = 0; i < 8; i++) {
                x2 = sampleCurveX(t2) - x;
                if (abs(x2) < epsilon) {
                    return t2;
                }
                d2 = (3 * ax * t2 + 2 * bx) * t2 + cx;
                if (abs(d2) < 1e-6) {
                    break;
                }
                t2 = t2 - x2 / d2;
            }
            t0 = 0;
            t1 = 1;
            t2 = x;
            if (t2 < t0) {
                return t0;
            }
            if (t2 > t1) {
                return t1;
            }
            while (t0 < t1) {
                x2 = sampleCurveX(t2);
                if (abs(x2 - x) < epsilon) {
                    return t2;
                }
                if (x > x2) {
                    t0 = t2;
                } else {
                    t1 = t2;
                }
                t2 = (t1 - t0) / 2 + t0;
            }
            return t2;
        }
        return solve(t, 1 / (200 * duration));
    }
    elproto.onAnimation = function (f) {
        f ? eve.on("raphael.anim.frame." + this.id, f) : eve.unbind("raphael.anim.frame." + this.id);
        return this;
    };
    function Animation(anim, ms) {
        var percents = [],
            newAnim = {};
        this.ms = ms;
        this.times = 1;
        if (anim) {
            for (var attr in anim) if (anim[has](attr)) {
                newAnim[toFloat(attr)] = anim[attr];
                percents.push(toFloat(attr));
            }
            percents.sort(sortByNumber);
        }
        this.anim = newAnim;
        this.top = percents[percents.length - 1];
        this.percents = percents;
    }
    /*\
     * Animation.delay
     [ method ]
     **
     * Creates a copy of existing animation object with given delay.
     **
     > Parameters
     **
     - delay (number) number of ms to pass between animation start and actual animation
     **
     = (object) new altered Animation object
     | var anim = Raphael.animation({cx: 10, cy: 20}, 2e3);
     | circle1.animate(anim); // run the given animation immediately
     | circle2.animate(anim.delay(500)); // run the given animation after 500 ms
     \*/
    Animation.prototype.delay = function (delay) {
        var a = new Animation(this.anim, this.ms);
        a.times = this.times;
        a.del = +delay || 0;
        return a;
    };
    /*\
     * Animation.repeat
     [ method ]
     **
     * Creates a copy of existing animation object with given repetition.
     **
     > Parameters
     **
     - repeat (number) number iterations of animation. For infinite animation pass `Infinity`
     **
     = (object) new altered Animation object
     \*/
    Animation.prototype.repeat = function (times) {
        var a = new Animation(this.anim, this.ms);
        a.del = this.del;
        a.times = math.floor(mmax(times, 0)) || 1;
        return a;
    };
    function runAnimation(anim, element, percent, status, totalOrigin, times) {
        percent = toFloat(percent);
        var params,
            isInAnim,
            isInAnimSet,
            percents = [],
            next,
            prev,
            timestamp,
            ms = anim.ms,
            from = {},
            to = {},
            diff = {};
        if (status) {
            for (i = 0, ii = animationElements.length; i < ii; i++) {
                var e = animationElements[i];
                if (e.el.id == element.id && e.anim == anim) {
                    if (e.percent != percent) {
                        animationElements.splice(i, 1);
                        isInAnimSet = 1;
                    } else {
                        isInAnim = e;
                    }
                    element.attr(e.totalOrigin);
                    break;
                }
            }
        } else {
            status = +to; // NaN
        }
        for (var i = 0, ii = anim.percents.length; i < ii; i++) {
            if (anim.percents[i] == percent || anim.percents[i] > status * anim.top) {
                percent = anim.percents[i];
                prev = anim.percents[i - 1] || 0;
                ms = ms / anim.top * (percent - prev);
                next = anim.percents[i + 1];
                params = anim.anim[percent];
                break;
            } else if (status) {
                element.attr(anim.anim[anim.percents[i]]);
            }
        }
        if (!params) {
            return;
        }
        if (!isInAnim) {
            for (var attr in params) if (params[has](attr)) {
                if (availableAnimAttrs[has](attr) || element.paper.customAttributes[has](attr)) {
                    from[attr] = element.attr(attr);
                    (from[attr] == null) && (from[attr] = availableAttrs[attr]);
                    to[attr] = params[attr];
                    switch (availableAnimAttrs[attr]) {
                        case nu:
                            diff[attr] = (to[attr] - from[attr]) / ms;
                            break;
                        case "colour":
                            from[attr] = R.getRGB(from[attr]);
                            var toColour = R.getRGB(to[attr]);
                            diff[attr] = {
                                r: (toColour.r - from[attr].r) / ms,
                                g: (toColour.g - from[attr].g) / ms,
                                b: (toColour.b - from[attr].b) / ms
                            };
                            break;
                        case "path":
                            var pathes = path2curve(from[attr], to[attr]),
                                toPath = pathes[1];
                            from[attr] = pathes[0];
                            diff[attr] = [];
                            for (i = 0, ii = from[attr].length; i < ii; i++) {
                                diff[attr][i] = [0];
                                for (var j = 1, jj = from[attr][i].length; j < jj; j++) {
                                    diff[attr][i][j] = (toPath[i][j] - from[attr][i][j]) / ms;
                                }
                            }
                            break;
                        case "transform":
                            var _ = element._,
                                eq = equaliseTransform(_[attr], to[attr]);
                            if (eq) {
                                from[attr] = eq.from;
                                to[attr] = eq.to;
                                diff[attr] = [];
                                diff[attr].real = true;
                                for (i = 0, ii = from[attr].length; i < ii; i++) {
                                    diff[attr][i] = [from[attr][i][0]];
                                    for (j = 1, jj = from[attr][i].length; j < jj; j++) {
                                        diff[attr][i][j] = (to[attr][i][j] - from[attr][i][j]) / ms;
                                    }
                                }
                            } else {
                                var m = (element.matrix || new Matrix),
                                    to2 = {
                                        _: {transform: _.transform},
                                        getBBox: function () {
                                            return element.getBBox(1);
                                        }
                                    };
                                from[attr] = [
                                    m.a,
                                    m.b,
                                    m.c,
                                    m.d,
                                    m.e,
                                    m.f
                                ];
                                extractTransform(to2, to[attr]);
                                to[attr] = to2._.transform;
                                diff[attr] = [
                                    (to2.matrix.a - m.a) / ms,
                                    (to2.matrix.b - m.b) / ms,
                                    (to2.matrix.c - m.c) / ms,
                                    (to2.matrix.d - m.d) / ms,
                                    (to2.matrix.e - m.e) / ms,
                                    (to2.matrix.f - m.f) / ms
                                ];
                                // from[attr] = [_.sx, _.sy, _.deg, _.dx, _.dy];
                                // var to2 = {_:{}, getBBox: function () { return element.getBBox(); }};
                                // extractTransform(to2, to[attr]);
                                // diff[attr] = [
                                //     (to2._.sx - _.sx) / ms,
                                //     (to2._.sy - _.sy) / ms,
                                //     (to2._.deg - _.deg) / ms,
                                //     (to2._.dx - _.dx) / ms,
                                //     (to2._.dy - _.dy) / ms
                                // ];
                            }
                            break;
                        case "csv":
                            var values = Str(params[attr])[split](separator),
                                from2 = Str(from[attr])[split](separator);
                            if (attr == "clip-rect") {
                                from[attr] = from2;
                                diff[attr] = [];
                                i = from2.length;
                                while (i--) {
                                    diff[attr][i] = (values[i] - from[attr][i]) / ms;
                                }
                            }
                            to[attr] = values;
                            break;
                        default:
                            values = [][concat](params[attr]);
                            from2 = [][concat](from[attr]);
                            diff[attr] = [];
                            i = element.paper.customAttributes[attr].length;
                            while (i--) {
                                diff[attr][i] = ((values[i] || 0) - (from2[i] || 0)) / ms;
                            }
                            break;
                    }
                }
            }
            var easing = params.easing,
                easyeasy = R.easing_formulas[easing];
            if (!easyeasy) {
                easyeasy = Str(easing).match(bezierrg);
                if (easyeasy && easyeasy.length == 5) {
                    var curve = easyeasy;
                    easyeasy = function (t) {
                        return CubicBezierAtTime(t, +curve[1], +curve[2], +curve[3], +curve[4], ms);
                    };
                } else {
                    easyeasy = pipe;
                }
            }
            timestamp = params.start || anim.start || +new Date;
            e = {
                anim: anim,
                percent: percent,
                timestamp: timestamp,
                start: timestamp + (anim.del || 0),
                status: 0,
                initstatus: status || 0,
                stop: false,
                ms: ms,
                easing: easyeasy,
                from: from,
                diff: diff,
                to: to,
                el: element,
                callback: params.callback,
                prev: prev,
                next: next,
                repeat: times || anim.times,
                origin: element.attr(),
                totalOrigin: totalOrigin
            };
            animationElements.push(e);
            if (status && !isInAnim && !isInAnimSet) {
                e.stop = true;
                e.start = new Date - ms * status;
                if (animationElements.length == 1) {
                    return animation();
                }
            }
            if (isInAnimSet) {
                e.start = new Date - e.ms * status;
            }
            animationElements.length == 1 && requestAnimFrame(animation);
        } else {
            isInAnim.initstatus = status;
            isInAnim.start = new Date - isInAnim.ms * status;
        }
        eve("raphael.anim.start." + element.id, element, anim);
    }
    /*\
     * Raphael.animation
     [ method ]
     **
     * Creates an animation object that can be passed to the @Element.animate or @Element.animateWith methods.
     * See also @Animation.delay and @Animation.repeat methods.
     **
     > Parameters
     **
     - params (object) final attributes for the element, see also @Element.attr
     - ms (number) number of milliseconds for animation to run
     - easing (string) #optional easing type. Accept one of @Raphael.easing_formulas or CSS format: `cubic&#x2010;bezier(XX,&#160;XX,&#160;XX,&#160;XX)`
     - callback (function) #optional callback function. Will be called at the end of animation.
     **
     = (object) @Animation
     \*/
    R.animation = function (params, ms, easing, callback) {
        if (params instanceof Animation) {
            return params;
        }
        if (R.is(easing, "function") || !easing) {
            callback = callback || easing || null;
            easing = null;
        }
        params = Object(params);
        ms = +ms || 0;
        var p = {},
            json,
            attr;
        for (attr in params) if (params[has](attr) && toFloat(attr) != attr && toFloat(attr) + "%" != attr) {
            json = true;
            p[attr] = params[attr];
        }
        if (!json) {
            // if percent-like syntax is used and end-of-all animation callback used
            if(callback){
                // find the last one
                var lastKey = 0;
                for(var i in params){
                    var percent = toInt(i);
                    if(params[has](i) && percent > lastKey){
                        lastKey = percent;
                    }
                }
                lastKey += '%';
                // if already defined callback in the last keyframe, skip
                !params[lastKey].callback && (params[lastKey].callback = callback);
            }
            return new Animation(params, ms);
        } else {
            easing && (p.easing = easing);
            callback && (p.callback = callback);
            return new Animation({100: p}, ms);
        }
    };
    /*\
     * Element.animate
     [ method ]
     **
     * Creates and starts animation for given element.
     **
     > Parameters
     **
     - params (object) final attributes for the element, see also @Element.attr
     - ms (number) number of milliseconds for animation to run
     - easing (string) #optional easing type. Accept one of @Raphael.easing_formulas or CSS format: `cubic&#x2010;bezier(XX,&#160;XX,&#160;XX,&#160;XX)`
     - callback (function) #optional callback function. Will be called at the end of animation.
     * or
     - animation (object) animation object, see @Raphael.animation
     **
     = (object) original element
     \*/
    elproto.animate = function (params, ms, easing, callback) {
        var element = this;
        if (element.removed) {
            callback && callback.call(element);
            return element;
        }
        var anim = params instanceof Animation ? params : R.animation(params, ms, easing, callback);
        runAnimation(anim, element, anim.percents[0], null, element.attr());
        return element;
    };
    /*\
     * Element.setTime
     [ method ]
     **
     * Sets the status of animation of the element in milliseconds. Similar to @Element.status method.
     **
     > Parameters
     **
     - anim (object) animation object
     - value (number) number of milliseconds from the beginning of the animation
     **
     = (object) original element if `value` is specified
     * Note, that during animation following events are triggered:
     *
     * On each animation frame event `anim.frame.<id>`, on start `anim.start.<id>` and on end `anim.finish.<id>`.
     \*/
    elproto.setTime = function (anim, value) {
        if (anim && value != null) {
            this.status(anim, mmin(value, anim.ms) / anim.ms);
        }
        return this;
    };
    /*\
     * Element.status
     [ method ]
     **
     * Gets or sets the status of animation of the element.
     **
     > Parameters
     **
     - anim (object) #optional animation object
     - value (number) #optional 0 – 1. If specified, method works like a setter and sets the status of a given animation to the value. This will cause animation to jump to the given position.
     **
     = (number) status
     * or
     = (array) status if `anim` is not specified. Array of objects in format:
     o {
     o     anim: (object) animation object
     o     status: (number) status
     o }
     * or
     = (object) original element if `value` is specified
     \*/
    elproto.status = function (anim, value) {
        var out = [],
            i = 0,
            len,
            e;
        if (value != null) {
            runAnimation(anim, this, -1, mmin(value, 1));
            return this;
        } else {
            len = animationElements.length;
            for (; i < len; i++) {
                e = animationElements[i];
                if (e.el.id == this.id && (!anim || e.anim == anim)) {
                    if (anim) {
                        return e.status;
                    }
                    out.push({
                        anim: e.anim,
                        status: e.status
                    });
                }
            }
            if (anim) {
                return 0;
            }
            return out;
        }
    };
    /*\
     * Element.pause
     [ method ]
     **
     * Stops animation of the element with ability to resume it later on.
     **
     > Parameters
     **
     - anim (object) #optional animation object
     **
     = (object) original element
     \*/
    elproto.pause = function (anim) {
        for (var i = 0; i < animationElements.length; i++) if (animationElements[i].el.id == this.id && (!anim || animationElements[i].anim == anim)) {
            if (eve("raphael.anim.pause." + this.id, this, animationElements[i].anim) !== false) {
                animationElements[i].paused = true;
            }
        }
        return this;
    };
    /*\
     * Element.resume
     [ method ]
     **
     * Resumes animation if it was paused with @Element.pause method.
     **
     > Parameters
     **
     - anim (object) #optional animation object
     **
     = (object) original element
     \*/
    elproto.resume = function (anim) {
        for (var i = 0; i < animationElements.length; i++) if (animationElements[i].el.id == this.id && (!anim || animationElements[i].anim == anim)) {
            var e = animationElements[i];
            if (eve("raphael.anim.resume." + this.id, this, e.anim) !== false) {
                delete e.paused;
                this.status(e.anim, e.status);
            }
        }
        return this;
    };
    /*\
     * Element.stop
     [ method ]
     **
     * Stops animation of the element.
     **
     > Parameters
     **
     - anim (object) #optional animation object
     **
     = (object) original element
     \*/
    elproto.stop = function (anim) {
        for (var i = 0; i < animationElements.length; i++) if (animationElements[i].el.id == this.id && (!anim || animationElements[i].anim == anim)) {
            if (eve("raphael.anim.stop." + this.id, this, animationElements[i].anim) !== false) {
                animationElements.splice(i--, 1);
            }
        }
        return this;
    };
    function stopAnimation(paper) {
        for (var i = 0; i < animationElements.length; i++) if (animationElements[i].el.paper == paper) {
            animationElements.splice(i--, 1);
        }
    }
    eve.on("raphael.remove", stopAnimation);
    eve.on("raphael.clear", stopAnimation);
    elproto.toString = function () {
        return "Rapha\xebl\u2019s object";
    };

    // Set
    var Set = function (items) {
            this.items = [];
            this.length = 0;
            this.type = "set";
            if (items) {
                for (var i = 0, ii = items.length; i < ii; i++) {
                    if (items[i] && (items[i].constructor == elproto.constructor || items[i].constructor == Set)) {
                        this[this.items.length] = this.items[this.items.length] = items[i];
                        this.length++;
                    }
                }
            }
        },
        setproto = Set.prototype;
    /*\
     * Set.push
     [ method ]
     **
     * Adds each argument to the current set.
     = (object) original element
     \*/
    setproto.push = function () {
        var item,
            len;
        for (var i = 0, ii = arguments.length; i < ii; i++) {
            item = arguments[i];
            if (item && (item.constructor == elproto.constructor || item.constructor == Set)) {
                len = this.items.length;
                this[len] = this.items[len] = item;
                this.length++;
            }
        }
        return this;
    };
    /*\
     * Set.pop
     [ method ]
     **
     * Removes last element and returns it.
     = (object) element
     \*/
    setproto.pop = function () {
        this.length && delete this[this.length--];
        return this.items.pop();
    };
    /*\
     * Set.forEach
     [ method ]
     **
     * Executes given function for each element in the set.
     *
     * If function returns `false` it will stop loop running.
     **
     > Parameters
     **
     - callback (function) function to run
     - thisArg (object) context object for the callback
     = (object) Set object
     \*/
    setproto.forEach = function (callback, thisArg) {
        for (var i = 0, ii = this.items.length; i < ii; i++) {
            if (callback.call(thisArg, this.items[i], i) === false) {
                return this;
            }
        }
        return this;
    };
    for (var method in elproto) if (elproto[has](method)) {
        setproto[method] = (function (methodname) {
            return function () {
                var arg = arguments;
                return this.forEach(function (el) {
                    el[methodname][apply](el, arg);
                });
            };
        })(method);
    }
    setproto.attr = function (name, value) {
        if (name && R.is(name, array) && R.is(name[0], "object")) {
            for (var j = 0, jj = name.length; j < jj; j++) {
                this.items[j].attr(name[j]);
            }
        } else {
            for (var i = 0, ii = this.items.length; i < ii; i++) {
                this.items[i].attr(name, value);
            }
        }
        return this;
    };
    /*\
     * Set.clear
     [ method ]
     **
     * Removes all elements from the set
     \*/
    setproto.clear = function () {
        while (this.length) {
            this.pop();
        }
    };
    /*\
     * Set.splice
     [ method ]
     **
     * Removes given element from the set
     **
     > Parameters
     **
     - index (number) position of the deletion
     - count (number) number of element to remove
     - insertion… (object) #optional elements to insert
     = (object) set elements that were deleted
     \*/
    setproto.splice = function (index, count, insertion) {
        index = index < 0 ? mmax(this.length + index, 0) : index;
        count = mmax(0, mmin(this.length - index, count));
        var tail = [],
            todel = [],
            args = [],
            i;
        for (i = 2; i < arguments.length; i++) {
            args.push(arguments[i]);
        }
        for (i = 0; i < count; i++) {
            todel.push(this[index + i]);
        }
        for (; i < this.length - index; i++) {
            tail.push(this[index + i]);
        }
        var arglen = args.length;
        for (i = 0; i < arglen + tail.length; i++) {
            this.items[index + i] = this[index + i] = i < arglen ? args[i] : tail[i - arglen];
        }
        i = this.items.length = this.length -= count - arglen;
        while (this[i]) {
            delete this[i++];
        }
        return new Set(todel);
    };
    /*\
     * Set.exclude
     [ method ]
     **
     * Removes given element from the set
     **
     > Parameters
     **
     - element (object) element to remove
     = (boolean) `true` if object was found & removed from the set
     \*/
    setproto.exclude = function (el) {
        for (var i = 0, ii = this.length; i < ii; i++) if (this[i] == el) {
            this.splice(i, 1);
            return true;
        }
    };
    setproto.animate = function (params, ms, easing, callback) {
        (R.is(easing, "function") || !easing) && (callback = easing || null);
        var len = this.items.length,
            i = len,
            item,
            set = this,
            collector;
        if (!len) {
            return this;
        }
        callback && (collector = function () {
            !--len && callback.call(set);
        });
        easing = R.is(easing, string) ? easing : collector;
        var anim = R.animation(params, ms, easing, collector);
        item = this.items[--i].animate(anim);
        while (i--) {
            this.items[i] && !this.items[i].removed && this.items[i].animateWith(item, anim, anim);
            (this.items[i] && !this.items[i].removed) || len--;
        }
        return this;
    };
    setproto.insertAfter = function (el) {
        var i = this.items.length;
        while (i--) {
            this.items[i].insertAfter(el);
        }
        return this;
    };
    setproto.getBBox = function () {
        var x = [],
            y = [],
            x2 = [],
            y2 = [];
        for (var i = this.items.length; i--;) if (!this.items[i].removed) {
            var box = this.items[i].getBBox();
            x.push(box.x);
            y.push(box.y);
            x2.push(box.x + box.width);
            y2.push(box.y + box.height);
        }
        x = mmin[apply](0, x);
        y = mmin[apply](0, y);
        x2 = mmax[apply](0, x2);
        y2 = mmax[apply](0, y2);
        return {
            x: x,
            y: y,
            x2: x2,
            y2: y2,
            width: x2 - x,
            height: y2 - y
        };
    };
    setproto.clone = function (s) {
        s = this.paper.set();
        for (var i = 0, ii = this.items.length; i < ii; i++) {
            s.push(this.items[i].clone());
        }
        return s;
    };
    setproto.toString = function () {
        return "Rapha\xebl\u2018s set";
    };

    setproto.glow = function(glowConfig) {
        var ret = this.paper.set();
        this.forEach(function(shape, index){
            var g = shape.glow(glowConfig);
            if(g != null){
                g.forEach(function(shape2, index2){
                    ret.push(shape2);
                });
            }
        });
        return ret;
    };


    /*\
     * Set.isPointInside
     [ method ]
     **
     * Determine if given point is inside this set’s elements
     **
     > Parameters
     **
     - x (number) x coordinate of the point
     - y (number) y coordinate of the point
     = (boolean) `true` if point is inside any of the set's elements
     \*/
    setproto.isPointInside = function (x, y) {
        var isPointInside = false;
        this.forEach(function (el) {
            if (el.isPointInside(x, y)) {
                isPointInside = true;
                return false; // stop loop
            }
        });
        return isPointInside;
    };

    /*\
     * Raphael.registerFont
     [ method ]
     **
     * Adds given font to the registered set of font for Raphaël. Should be used as an internal call from within Cufón’s font file.
     * Returns original parameter, so it could be used with chaining.
     # <a href="http://wiki.github.com/sorccu/cufon/about">More about Cufón and how to convert your font form TTF, OTF, etc to JavaScript file.</a>
     **
     > Parameters
     **
     - font (object) the font to register
     = (object) the font you passed in
     > Usage
     | Cufon.registerFont(Raphael.registerFont({…}));
     \*/
    R.registerFont = function (font) {
        if (!font.face) {
            return font;
        }
        this.fonts = this.fonts || {};
        var fontcopy = {
                w: font.w,
                face: {},
                glyphs: {}
            },
            family = font.face["font-family"];
        for (var prop in font.face) if (font.face[has](prop)) {
            fontcopy.face[prop] = font.face[prop];
        }
        if (this.fonts[family]) {
            this.fonts[family].push(fontcopy);
        } else {
            this.fonts[family] = [fontcopy];
        }
        if (!font.svg) {
            fontcopy.face["units-per-em"] = toInt(font.face["units-per-em"], 10);
            for (var glyph in font.glyphs) if (font.glyphs[has](glyph)) {
                var path = font.glyphs[glyph];
                fontcopy.glyphs[glyph] = {
                    w: path.w,
                    k: {},
                    d: path.d && "M" + path.d.replace(/[mlcxtrv]/g, function (command) {
                        return {l: "L", c: "C", x: "z", t: "m", r: "l", v: "c"}[command] || "M";
                    }) + "z"
                };
                if (path.k) {
                    for (var k in path.k) if (path[has](k)) {
                        fontcopy.glyphs[glyph].k[k] = path.k[k];
                    }
                }
            }
        }
        return font;
    };
    /*\
     * Paper.getFont
     [ method ]
     **
     * Finds font object in the registered font by given parameters. You could specify only one word from the font name, like “Myriad” for “Myriad Pro”.
     **
     > Parameters
     **
     - family (string) font family name or any word from it
     - weight (string) #optional font weight
     - style (string) #optional font style
     - stretch (string) #optional font stretch
     = (object) the font object
     > Usage
     | paper.print(100, 100, "Test string", paper.getFont("Times", 800), 30);
     \*/
    paperproto.getFont = function (family, weight, style, stretch) {
        stretch = stretch || "normal";
        style = style || "normal";
        weight = +weight || {normal: 400, bold: 700, lighter: 300, bolder: 800}[weight] || 400;
        if (!R.fonts) {
            return;
        }
        var font = R.fonts[family];
        if (!font) {
            var name = new RegExp("(^|\\s)" + family.replace(/[^\w\d\s+!~.:_-]/g, E) + "(\\s|$)", "i");
            for (var fontName in R.fonts) if (R.fonts[has](fontName)) {
                if (name.test(fontName)) {
                    font = R.fonts[fontName];
                    break;
                }
            }
        }
        var thefont;
        if (font) {
            for (var i = 0, ii = font.length; i < ii; i++) {
                thefont = font[i];
                if (thefont.face["font-weight"] == weight && (thefont.face["font-style"] == style || !thefont.face["font-style"]) && thefont.face["font-stretch"] == stretch) {
                    break;
                }
            }
        }
        return thefont;
    };
    /*\
     * Paper.print
     [ method ]
     **
     * Creates path that represent given text written using given font at given position with given size.
     * Result of the method is path element that contains whole text as a separate path.
     **
     > Parameters
     **
     - x (number) x position of the text
     - y (number) y position of the text
     - string (string) text to print
     - font (object) font object, see @Paper.getFont
     - size (number) #optional size of the font, default is `16`
     - origin (string) #optional could be `"baseline"` or `"middle"`, default is `"middle"`
     - letter_spacing (number) #optional number in range `-1..1`, default is `0`
     - line_spacing (number) #optional number in range `1..3`, default is `1`
     = (object) resulting path element, which consist of all letters
     > Usage
     | var txt = r.print(10, 50, "print", r.getFont("Museo"), 30).attr({fill: "#fff"});
     \*/
    paperproto.print = function (x, y, string, font, size, origin, letter_spacing, line_spacing) {
        origin = origin || "middle"; // baseline|middle
        letter_spacing = mmax(mmin(letter_spacing || 0, 1), -1);
        line_spacing = mmax(mmin(line_spacing || 1, 3), 1);
        var letters = Str(string)[split](E),
            shift = 0,
            notfirst = 0,
            path = E,
            scale;
        R.is(font, "string") && (font = this.getFont(font));
        if (font) {
            scale = (size || 16) / font.face["units-per-em"];
            var bb = font.face.bbox[split](separator),
                top = +bb[0],
                lineHeight = bb[3] - bb[1],
                shifty = 0,
                height = +bb[1] + (origin == "baseline" ? lineHeight + (+font.face.descent) : lineHeight / 2);
            for (var i = 0, ii = letters.length; i < ii; i++) {
                if (letters[i] == "\n") {
                    shift = 0;
                    curr = 0;
                    notfirst = 0;
                    shifty += lineHeight * line_spacing;
                } else {
                    var prev = notfirst && font.glyphs[letters[i - 1]] || {},
                        curr = font.glyphs[letters[i]];
                    shift += notfirst ? (prev.w || font.w) + (prev.k && prev.k[letters[i]] || 0) + (font.w * letter_spacing) : 0;
                    notfirst = 1;
                }
                if (curr && curr.d) {
                    path += R.transformPath(curr.d, ["t", shift * scale, shifty * scale, "s", scale, scale, top, height, "t", (x - top) / scale, (y - height) / scale]);
                }
            }
        }
        return this.path(path).attr({
            fill: "#000",
            stroke: "none"
        });
    };

    /*\
     * Paper.add
     [ method ]
     **
     * Imports elements in JSON array in format `{type: type, <attributes>}`
     **
     > Parameters
     **
     - json (array)
     = (object) resulting set of imported elements
     > Usage
     | paper.add([
     |     {
     |         type: "circle",
     |         cx: 10,
     |         cy: 10,
     |         r: 5
     |     },
     |     {
     |         type: "rect",
     |         x: 10,
     |         y: 10,
     |         width: 10,
     |         height: 10,
     |         fill: "#fc0"
     |     }
     | ]);
     \*/
    paperproto.add = function (json) {
        if (R.is(json, "array")) {
            var res = this.set(),
                i = 0,
                ii = json.length,
                j;
            for (; i < ii; i++) {
                j = json[i] || {};
                elements[has](j.type) && res.push(this[j.type]().attr(j));
            }
        }
        return res;
    };

    /*\
     * Raphael.format
     [ method ]
     **
     * Simple format function. Replaces construction of type “`{<number>}`” to the corresponding argument.
     **
     > Parameters
     **
     - token (string) string to format
     - … (string) rest of arguments will be treated as parameters for replacement
     = (string) formated string
     > Usage
     | var x = 10,
     |     y = 20,
     |     width = 40,
     |     height = 50;
     | // this will draw a rectangular shape equivalent to "M10,20h40v50h-40z"
     | paper.path(Raphael.format("M{0},{1}h{2}v{3}h{4}z", x, y, width, height, -width));
     \*/
    R.format = function (token, params) {
        var args = R.is(params, array) ? [0][concat](params) : arguments;
        token && R.is(token, string) && args.length - 1 && (token = token.replace(formatrg, function (str, i) {
            return args[++i] == null ? E : args[i];
        }));
        return token || E;
    };
    /*\
     * Raphael.fullfill
     [ method ]
     **
     * A little bit more advanced format function than @Raphael.format. Replaces construction of type “`{<name>}`” to the corresponding argument.
     **
     > Parameters
     **
     - token (string) string to format
     - json (object) object which properties will be used as a replacement
     = (string) formated string
     > Usage
     | // this will draw a rectangular shape equivalent to "M10,20h40v50h-40z"
     | paper.path(Raphael.fullfill("M{x},{y}h{dim.width}v{dim.height}h{dim['negative width']}z", {
     |     x: 10,
     |     y: 20,
     |     dim: {
     |         width: 40,
     |         height: 50,
     |         "negative width": -40
     |     }
     | }));
     \*/
    R.fullfill = (function () {
        var tokenRegex = /\{([^\}]+)\}/g,
            objNotationRegex = /(?:(?:^|\.)(.+?)(?=\[|\.|$|\()|\[('|")(.+?)\2\])(\(\))?/g, // matches .xxxxx or ["xxxxx"] to run over object properties
            replacer = function (all, key, obj) {
                var res = obj;
                key.replace(objNotationRegex, function (all, name, quote, quotedName, isFunc) {
                    name = name || quotedName;
                    if (res) {
                        if (name in res) {
                            res = res[name];
                        }
                        typeof res == "function" && isFunc && (res = res());
                    }
                });
                res = (res == null || res == obj ? all : res) + "";
                return res;
            };
        return function (str, obj) {
            return String(str).replace(tokenRegex, function (all, key) {
                return replacer(all, key, obj);
            });
        };
    })();
    /*\
     * Raphael.ninja
     [ method ]
     **
     * If you want to leave no trace of Raphaël (Well, Raphaël creates only one global variable `Raphael`, but anyway.) You can use `ninja` method.
     * Beware, that in this case plugins could stop working, because they are depending on global variable existence.
     **
     = (object) Raphael object
     > Usage
     | (function (local_raphael) {
     |     var paper = local_raphael(10, 10, 320, 200);
     |     …
     | })(Raphael.ninja());
     \*/
    R.ninja = function () {
        oldRaphael.was ? (g.win.Raphael = oldRaphael.is) : delete Raphael;
        return R;
    };
    /*\
     * Raphael.st
     [ property (object) ]
     **
     * You can add your own method to elements and sets. It is wise to add a set method for each element method
     * you added, so you will be able to call the same method on sets too.
     **
     * See also @Raphael.el.
     > Usage
     | Raphael.el.red = function () {
     |     this.attr({fill: "#f00"});
     | };
     | Raphael.st.red = function () {
     |     this.forEach(function (el) {
     |         el.red();
     |     });
     | };
     | // then use it
     | paper.set(paper.circle(100, 100, 20), paper.circle(110, 100, 20)).red();
     \*/
    R.st = setproto;

    eve.on("raphael.DOMload", function () {
        loaded = true;
    });

    // Firefox <3.6 fix: http://webreflection.blogspot.com/2009/11/195-chars-to-help-lazy-loading.html
    (function (doc, loaded, f) {
        if (doc.readyState == null && doc.addEventListener){
            doc.addEventListener(loaded, f = function () {
                doc.removeEventListener(loaded, f, false);
                doc.readyState = "complete";
            }, false);
            doc.readyState = "loading";
        }
        function isLoaded() {
            (/in/).test(doc.readyState) ? setTimeout(isLoaded, 9) : R.eve("raphael.DOMload");
        }
        isLoaded();
    })(document, "DOMContentLoaded");

    return R;
}));

// ┌─────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël 2.1.4 - JavaScript Vector Library                       │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ SVG Module                                                          │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright (c) 2008-2011 Dmitry Baranovskiy (http://raphaeljs.com)   │ \\
// │ Copyright (c) 2008-2011 Sencha Labs (http://sencha.com)             │ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license. │ \\
// └─────────────────────────────────────────────────────────────────────┘ \\

(function (glob, factory) {
    if (typeof define === "function" && define.amd) {
        define("raphael.svg", ["raphael.core"], function(raphael) {
            return factory(raphael);
        });
    } else if (typeof exports === "object") {
        factory(require("raphael.core"));
    } else {
        factory(glob.Raphael);
    }
}(this, function(R) {
    if (R && !R.svg) {
        return;
    }

    var has = "hasOwnProperty",
        Str = String,
        toFloat = parseFloat,
        toInt = parseInt,
        math = Math,
        mmax = math.max,
        abs = math.abs,
        pow = math.pow,
        separator = /[, ]+/,
        eve = R.eve,
        E = "",
        S = " ";
    var xlink = "http://www.w3.org/1999/xlink",
        markers = {
            block: "M5,0 0,2.5 5,5z",
            classic: "M5,0 0,2.5 5,5 3.5,3 3.5,2z",
            diamond: "M2.5,0 5,2.5 2.5,5 0,2.5z",
            open: "M6,1 1,3.5 6,6",
            oval: "M2.5,0A2.5,2.5,0,0,1,2.5,5 2.5,2.5,0,0,1,2.5,0z"
        },
        markerCounter = {};
    R.toString = function () {
        return  "Your browser supports SVG.\nYou are running Rapha\xebl " + this.version;
    };
    var $ = function (el, attr) {
            if (attr) {
                if (typeof el == "string") {
                    el = $(el);
                }
                for (var key in attr) if (attr[has](key)) {
                    if (key.substring(0, 6) == "xlink:") {
                        el.setAttributeNS(xlink, key.substring(6), Str(attr[key]));
                    } else {
                        el.setAttribute(key, Str(attr[key]));
                    }
                }
            } else {
                el = R._g.doc.createElementNS("http://www.w3.org/2000/svg", el);
                el.style && (el.style.webkitTapHighlightColor = "rgba(0,0,0,0)");
            }
            return el;
        },
        addGradientFill = function (element, gradient) {
            var type = "linear",
                id = element.id + gradient,
                fx = .5, fy = .5,
                o = element.node,
                SVG = element.paper,
                s = o.style,
                el = R._g.doc.getElementById(id);
            if (!el) {
                gradient = Str(gradient).replace(R._radial_gradient, function (all, _fx, _fy) {
                    type = "radial";
                    if (_fx && _fy) {
                        fx = toFloat(_fx);
                        fy = toFloat(_fy);
                        var dir = ((fy > .5) * 2 - 1);
                        pow(fx - .5, 2) + pow(fy - .5, 2) > .25 &&
                        (fy = math.sqrt(.25 - pow(fx - .5, 2)) * dir + .5) &&
                        fy != .5 &&
                        (fy = fy.toFixed(5) - 1e-5 * dir);
                    }
                    return E;
                });
                gradient = gradient.split(/\s*\-\s*/);
                if (type == "linear") {
                    var angle = gradient.shift();
                    angle = -toFloat(angle);
                    if (isNaN(angle)) {
                        return null;
                    }
                    var vector = [0, 0, math.cos(R.rad(angle)), math.sin(R.rad(angle))],
                        max = 1 / (mmax(abs(vector[2]), abs(vector[3])) || 1);
                    vector[2] *= max;
                    vector[3] *= max;
                    if (vector[2] < 0) {
                        vector[0] = -vector[2];
                        vector[2] = 0;
                    }
                    if (vector[3] < 0) {
                        vector[1] = -vector[3];
                        vector[3] = 0;
                    }
                }
                var dots = R._parseDots(gradient);
                if (!dots) {
                    return null;
                }
                id = id.replace(/[\(\)\s,\xb0#]/g, "_");

                if (element.gradient && id != element.gradient.id) {
                    SVG.defs.removeChild(element.gradient);
                    delete element.gradient;
                }

                if (!element.gradient) {
                    el = $(type + "Gradient", {id: id});
                    element.gradient = el;
                    $(el, type == "radial" ? {
                        fx: fx,
                        fy: fy
                    } : {
                        x1: vector[0],
                        y1: vector[1],
                        x2: vector[2],
                        y2: vector[3],
                        gradientTransform: element.matrix.invert()
                    });
                    SVG.defs.appendChild(el);
                    for (var i = 0, ii = dots.length; i < ii; i++) {
                        el.appendChild($("stop", {
                            offset: dots[i].offset ? dots[i].offset : i ? "100%" : "0%",
                            "stop-color": dots[i].color || "#fff",
                            "stop-opacity": isFinite(dots[i].opacity) ? dots[i].opacity : 1
                        }));
                    }
                }
            }
            $(o, {
                fill: "url('" + document.location.origin + document.location.pathname + "#" + id + "')",
                opacity: 1,
                "fill-opacity": 1
            });
            s.fill = E;
            s.opacity = 1;
            s.fillOpacity = 1;
            return 1;
        },
        updatePosition = function (o) {
            var bbox = o.getBBox(1);
            $(o.pattern, {patternTransform: o.matrix.invert() + " translate(" + bbox.x + "," + bbox.y + ")"});
        },
        addArrow = function (o, value, isEnd) {
            if (o.type == "path") {
                var values = Str(value).toLowerCase().split("-"),
                    p = o.paper,
                    se = isEnd ? "end" : "start",
                    node = o.node,
                    attrs = o.attrs,
                    stroke = attrs["stroke-width"],
                    i = values.length,
                    type = "classic",
                    from,
                    to,
                    dx,
                    refX,
                    attr,
                    w = 3,
                    h = 3,
                    t = 5;
                while (i--) {
                    switch (values[i]) {
                        case "block":
                        case "classic":
                        case "oval":
                        case "diamond":
                        case "open":
                        case "none":
                            type = values[i];
                            break;
                        case "wide": h = 5; break;
                        case "narrow": h = 2; break;
                        case "long": w = 5; break;
                        case "short": w = 2; break;
                    }
                }
                if (type == "open") {
                    w += 2;
                    h += 2;
                    t += 2;
                    dx = 1;
                    refX = isEnd ? 4 : 1;
                    attr = {
                        fill: "none",
                        stroke: attrs.stroke
                    };
                } else {
                    refX = dx = w / 2;
                    attr = {
                        fill: attrs.stroke,
                        stroke: "none"
                    };
                }
                if (o._.arrows) {
                    if (isEnd) {
                        o._.arrows.endPath && markerCounter[o._.arrows.endPath]--;
                        o._.arrows.endMarker && markerCounter[o._.arrows.endMarker]--;
                    } else {
                        o._.arrows.startPath && markerCounter[o._.arrows.startPath]--;
                        o._.arrows.startMarker && markerCounter[o._.arrows.startMarker]--;
                    }
                } else {
                    o._.arrows = {};
                }
                if (type != "none") {
                    var pathId = "raphael-marker-" + type,
                        markerId = "raphael-marker-" + se + type + w + h + "-obj" + o.id;
                    if (!R._g.doc.getElementById(pathId)) {
                        p.defs.appendChild($($("path"), {
                            "stroke-linecap": "round",
                            d: markers[type],
                            id: pathId
                        }));
                        markerCounter[pathId] = 1;
                    } else {
                        markerCounter[pathId]++;
                    }
                    var marker = R._g.doc.getElementById(markerId),
                        use;
                    if (!marker) {
                        marker = $($("marker"), {
                            id: markerId,
                            markerHeight: h,
                            markerWidth: w,
                            orient: "auto",
                            refX: refX,
                            refY: h / 2
                        });
                        use = $($("use"), {
                            "xlink:href": "#" + pathId,
                            transform: (isEnd ? "rotate(180 " + w / 2 + " " + h / 2 + ") " : E) + "scale(" + w / t + "," + h / t + ")",
                            "stroke-width": (1 / ((w / t + h / t) / 2)).toFixed(4)
                        });
                        marker.appendChild(use);
                        p.defs.appendChild(marker);
                        markerCounter[markerId] = 1;
                    } else {
                        markerCounter[markerId]++;
                        use = marker.getElementsByTagName("use")[0];
                    }
                    $(use, attr);
                    var delta = dx * (type != "diamond" && type != "oval");
                    if (isEnd) {
                        from = o._.arrows.startdx * stroke || 0;
                        to = R.getTotalLength(attrs.path) - delta * stroke;
                    } else {
                        from = delta * stroke;
                        to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
                    }
                    attr = {};
                    attr["marker-" + se] = "url(#" + markerId + ")";
                    if (to || from) {
                        attr.d = R.getSubpath(attrs.path, from, to);
                    }
                    $(node, attr);
                    o._.arrows[se + "Path"] = pathId;
                    o._.arrows[se + "Marker"] = markerId;
                    o._.arrows[se + "dx"] = delta;
                    o._.arrows[se + "Type"] = type;
                    o._.arrows[se + "String"] = value;
                } else {
                    if (isEnd) {
                        from = o._.arrows.startdx * stroke || 0;
                        to = R.getTotalLength(attrs.path) - from;
                    } else {
                        from = 0;
                        to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
                    }
                    o._.arrows[se + "Path"] && $(node, {d: R.getSubpath(attrs.path, from, to)});
                    delete o._.arrows[se + "Path"];
                    delete o._.arrows[se + "Marker"];
                    delete o._.arrows[se + "dx"];
                    delete o._.arrows[se + "Type"];
                    delete o._.arrows[se + "String"];
                }
                for (attr in markerCounter) if (markerCounter[has](attr) && !markerCounter[attr]) {
                    var item = R._g.doc.getElementById(attr);
                    item && item.parentNode.removeChild(item);
                }
            }
        },
        dasharray = {
            "-": [3, 1],
            ".": [1, 1],
            "-.": [3, 1, 1, 1],
            "-..": [3, 1, 1, 1, 1, 1],
            ". ": [1, 3],
            "- ": [4, 3],
            "--": [8, 3],
            "- .": [4, 3, 1, 3],
            "--.": [8, 3, 1, 3],
            "--..": [8, 3, 1, 3, 1, 3]
        },
        addDashes = function (o, value, params) {
            value = dasharray[Str(value).toLowerCase()];
            if (value) {
                var width = o.attrs["stroke-width"] || "1",
                    butt = {round: width, square: width, butt: 0}[o.attrs["stroke-linecap"] || params["stroke-linecap"]] || 0,
                    dashes = [],
                    i = value.length;
                while (i--) {
                    dashes[i] = value[i] * width + ((i % 2) ? 1 : -1) * butt;
                }
                $(o.node, {"stroke-dasharray": dashes.join(",")});
            }
            else {
                $(o.node, {"stroke-dasharray": "none"});
            }
        },
        setFillAndStroke = function (o, params) {
            var node = o.node,
                attrs = o.attrs,
                vis = node.style.visibility;
            node.style.visibility = "hidden";
            for (var att in params) {
                if (params[has](att)) {
                    if (!R._availableAttrs[has](att)) {
                        continue;
                    }
                    var value = params[att];
                    attrs[att] = value;
                    switch (att) {
                        case "blur":
                            o.blur(value);
                            break;
                        case "title":
                            var title = node.getElementsByTagName("title");

                            // Use the existing <title>.
                            if (title.length && (title = title[0])) {
                                title.firstChild.nodeValue = value;
                            } else {
                                title = $("title");
                                var val = R._g.doc.createTextNode(value);
                                title.appendChild(val);
                                node.appendChild(title);
                            }
                            break;
                        case "href":
                        case "target":
                            var pn = node.parentNode;
                            if (pn.tagName.toLowerCase() != "a") {
                                var hl = $("a");
                                pn.insertBefore(hl, node);
                                hl.appendChild(node);
                                pn = hl;
                            }
                            if (att == "target") {
                                pn.setAttributeNS(xlink, "show", value == "blank" ? "new" : value);
                            } else {
                                pn.setAttributeNS(xlink, att, value);
                            }
                            break;
                        case "cursor":
                            node.style.cursor = value;
                            break;
                        case "transform":
                            o.transform(value);
                            break;
                        case "arrow-start":
                            addArrow(o, value);
                            break;
                        case "arrow-end":
                            addArrow(o, value, 1);
                            break;
                        case "clip-rect":
                            var rect = Str(value).split(separator);
                            if (rect.length == 4) {
                                o.clip && o.clip.parentNode.parentNode.removeChild(o.clip.parentNode);
                                var el = $("clipPath"),
                                    rc = $("rect");
                                el.id = R.createUUID();
                                $(rc, {
                                    x: rect[0],
                                    y: rect[1],
                                    width: rect[2],
                                    height: rect[3]
                                });
                                el.appendChild(rc);
                                o.paper.defs.appendChild(el);
                                $(node, {"clip-path": "url(#" + el.id + ")"});
                                o.clip = rc;
                            }
                            if (!value) {
                                var path = node.getAttribute("clip-path");
                                if (path) {
                                    var clip = R._g.doc.getElementById(path.replace(/(^url\(#|\)$)/g, E));
                                    clip && clip.parentNode.removeChild(clip);
                                    $(node, {"clip-path": E});
                                    delete o.clip;
                                }
                            }
                            break;
                        case "path":
                            if (o.type == "path") {
                                $(node, {d: value ? attrs.path = R._pathToAbsolute(value) : "M0,0"});
                                o._.dirty = 1;
                                if (o._.arrows) {
                                    "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                    "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                                }
                            }
                            break;
                        case "width":
                            node.setAttribute(att, value);
                            o._.dirty = 1;
                            if (attrs.fx) {
                                att = "x";
                                value = attrs.x;
                            } else {
                                break;
                            }
                        case "x":
                            if (attrs.fx) {
                                value = -attrs.x - (attrs.width || 0);
                            }
                        case "rx":
                            if (att == "rx" && o.type == "rect") {
                                break;
                            }
                        case "cx":
                            node.setAttribute(att, value);
                            o.pattern && updatePosition(o);
                            o._.dirty = 1;
                            break;
                        case "height":
                            node.setAttribute(att, value);
                            o._.dirty = 1;
                            if (attrs.fy) {
                                att = "y";
                                value = attrs.y;
                            } else {
                                break;
                            }
                        case "y":
                            if (attrs.fy) {
                                value = -attrs.y - (attrs.height || 0);
                            }
                        case "ry":
                            if (att == "ry" && o.type == "rect") {
                                break;
                            }
                        case "cy":
                            node.setAttribute(att, value);
                            o.pattern && updatePosition(o);
                            o._.dirty = 1;
                            break;
                        case "r":
                            if (o.type == "rect") {
                                $(node, {rx: value, ry: value});
                            } else {
                                node.setAttribute(att, value);
                            }
                            o._.dirty = 1;
                            break;
                        case "src":
                            if (o.type == "image") {
                                node.setAttributeNS(xlink, "href", value);
                            }
                            break;
                        case "stroke-width":
                            if (o._.sx != 1 || o._.sy != 1) {
                                value /= mmax(abs(o._.sx), abs(o._.sy)) || 1;
                            }
                            node.setAttribute(att, value);
                            if (attrs["stroke-dasharray"]) {
                                addDashes(o, attrs["stroke-dasharray"], params);
                            }
                            if (o._.arrows) {
                                "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                            }
                            break;
                        case "stroke-dasharray":
                            addDashes(o, value, params);
                            break;
                        case "fill":
                            var isURL = Str(value).match(R._ISURL);
                            if (isURL) {
                                el = $("pattern");
                                var ig = $("image");
                                el.id = R.createUUID();
                                $(el, {x: 0, y: 0, patternUnits: "userSpaceOnUse", height: 1, width: 1});
                                $(ig, {x: 0, y: 0, "xlink:href": isURL[1]});
                                el.appendChild(ig);

                                (function (el) {
                                    R._preload(isURL[1], function () {
                                        var w = this.offsetWidth,
                                            h = this.offsetHeight;
                                        $(el, {width: w, height: h});
                                        $(ig, {width: w, height: h});
                                    });
                                })(el);
                                o.paper.defs.appendChild(el);
                                $(node, {fill: "url(#" + el.id + ")"});
                                o.pattern = el;
                                o.pattern && updatePosition(o);
                                break;
                            }
                            var clr = R.getRGB(value);
                            if (!clr.error) {
                                delete params.gradient;
                                delete attrs.gradient;
                                !R.is(attrs.opacity, "undefined") &&
                                R.is(params.opacity, "undefined") &&
                                $(node, {opacity: attrs.opacity});
                                !R.is(attrs["fill-opacity"], "undefined") &&
                                R.is(params["fill-opacity"], "undefined") &&
                                $(node, {"fill-opacity": attrs["fill-opacity"]});
                            } else if ((o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value)) {
                                if ("opacity" in attrs || "fill-opacity" in attrs) {
                                    var gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
                                    if (gradient) {
                                        var stops = gradient.getElementsByTagName("stop");
                                        $(stops[stops.length - 1], {"stop-opacity": ("opacity" in attrs ? attrs.opacity : 1) * ("fill-opacity" in attrs ? attrs["fill-opacity"] : 1)});
                                    }
                                }
                                attrs.gradient = value;
                                attrs.fill = "none";
                                break;
                            }
                            clr[has]("opacity") && $(node, {"fill-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
                        case "stroke":
                            clr = R.getRGB(value);
                            node.setAttribute(att, clr.hex);
                            att == "stroke" && clr[has]("opacity") && $(node, {"stroke-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
                            if (att == "stroke" && o._.arrows) {
                                "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                            }
                            break;
                        case "gradient":
                            (o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value);
                            break;
                        case "opacity":
                            if (attrs.gradient && !attrs[has]("stroke-opacity")) {
                                $(node, {"stroke-opacity": value > 1 ? value / 100 : value});
                            }
                        // fall
                        case "fill-opacity":
                            if (attrs.gradient) {
                                gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
                                if (gradient) {
                                    stops = gradient.getElementsByTagName("stop");
                                    $(stops[stops.length - 1], {"stop-opacity": value});
                                }
                                break;
                            }
                        default:
                            att == "font-size" && (value = toInt(value, 10) + "px");
                            var cssrule = att.replace(/(\-.)/g, function (w) {
                                return w.substring(1).toUpperCase();
                            });
                            node.style[cssrule] = value;
                            o._.dirty = 1;
                            node.setAttribute(att, value);
                            break;
                    }
                }
            }

            tuneText(o, params);
            node.style.visibility = vis;
        },
        leading = 1.2,
        tuneText = function (el, params) {
            if (el.type != "text" || !(params[has]("text") || params[has]("font") || params[has]("font-size") || params[has]("x") || params[has]("y"))) {
                return;
            }
            var a = el.attrs,
                node = el.node,
                fontSize = node.firstChild ? toInt(R._g.doc.defaultView.getComputedStyle(node.firstChild, E).getPropertyValue("font-size"), 10) : 10;

            if (params[has]("text")) {
                a.text = params.text;
                while (node.firstChild) {
                    node.removeChild(node.firstChild);
                }
                var texts = Str(params.text).split("\n"),
                    tspans = [],
                    tspan;
                for (var i = 0, ii = texts.length; i < ii; i++) {
                    tspan = $("tspan");
                    i && $(tspan, {dy: fontSize * leading, x: a.x});
                    tspan.appendChild(R._g.doc.createTextNode(texts[i]));
                    node.appendChild(tspan);
                    tspans[i] = tspan;
                }
            } else {
                tspans = node.getElementsByTagName("tspan");
                for (i = 0, ii = tspans.length; i < ii; i++) if (i) {
                    $(tspans[i], {dy: fontSize * leading, x: a.x});
                } else {
                    $(tspans[0], {dy: 0});
                }
            }
            $(node, {x: a.x, y: a.y});
            el._.dirty = 1;
            var bb = el._getBBox(),
                dif = a.y - (bb.y + bb.height / 2);
            dif && R.is(dif, "finite") && $(tspans[0], {dy: dif});
        },
        getRealNode = function (node) {
            if (node.parentNode && node.parentNode.tagName.toLowerCase() === "a") {
                return node.parentNode;
            } else {
                return node;
            }
        },
        Element = function (node, svg) {
            var X = 0,
                Y = 0;
            /*\
             * Element.node
             [ property (object) ]
             **
             * Gives you a reference to the DOM object, so you can assign event handlers or just mess around.
             **
             * Note: Don’t mess with it.
             > Usage
             | // draw a circle at coordinate 10,10 with radius of 10
             | var c = paper.circle(10, 10, 10);
             | c.node.onclick = function () {
             |     c.attr("fill", "red");
             | };
             \*/
            this[0] = this.node = node;
            /*\
             * Element.raphael
             [ property (object) ]
             **
             * Internal reference to @Raphael object. In case it is not available.
             > Usage
             | Raphael.el.red = function () {
             |     var hsb = this.paper.raphael.rgb2hsb(this.attr("fill"));
             |     hsb.h = 1;
             |     this.attr({fill: this.paper.raphael.hsb2rgb(hsb).hex});
             | }
             \*/
            node.raphael = true;
            /*\
             * Element.id
             [ property (number) ]
             **
             * Unique id of the element. Especially useful when you want to listen to events of the element,
             * because all events are fired in format `<module>.<action>.<id>`. Also useful for @Paper.getById method.
             \*/
            this.id = R._oid++;
            node.raphaelid = this.id;
            this.matrix = R.matrix();
            this.realPath = null;
            /*\
             * Element.paper
             [ property (object) ]
             **
             * Internal reference to “paper” where object drawn. Mainly for use in plugins and element extensions.
             > Usage
             | Raphael.el.cross = function () {
             |     this.attr({fill: "red"});
             |     this.paper.path("M10,10L50,50M50,10L10,50")
             |         .attr({stroke: "red"});
             | }
             \*/
            this.paper = svg;
            this.attrs = this.attrs || {};
            this._ = {
                transform: [],
                sx: 1,
                sy: 1,
                deg: 0,
                dx: 0,
                dy: 0,
                dirty: 1
            };
            !svg.bottom && (svg.bottom = this);
            /*\
             * Element.prev
             [ property (object) ]
             **
             * Reference to the previous element in the hierarchy.
             \*/
            this.prev = svg.top;
            svg.top && (svg.top.next = this);
            svg.top = this;
            /*\
             * Element.next
             [ property (object) ]
             **
             * Reference to the next element in the hierarchy.
             \*/
            this.next = null;
        },
        elproto = R.el;

    Element.prototype = elproto;
    elproto.constructor = Element;

    R._engine.path = function (pathString, SVG) {
        var el = $("path");
        SVG.canvas && SVG.canvas.appendChild(el);
        var p = new Element(el, SVG);
        p.type = "path";
        setFillAndStroke(p, {
            fill: "none",
            stroke: "#000",
            path: pathString
        });
        return p;
    };
    /*\
     * Element.rotate
     [ method ]
     **
     * Deprecated! Use @Element.transform instead.
     * Adds rotation by given angle around given point to the list of
     * transformations of the element.
     > Parameters
     - deg (number) angle in degrees
     - cx (number) #optional x coordinate of the centre of rotation
     - cy (number) #optional y coordinate of the centre of rotation
     * If cx & cy aren’t specified centre of the shape is used as a point of rotation.
     = (object) @Element
     \*/
    elproto.rotate = function (deg, cx, cy) {
        if (this.removed) {
            return this;
        }
        deg = Str(deg).split(separator);
        if (deg.length - 1) {
            cx = toFloat(deg[1]);
            cy = toFloat(deg[2]);
        }
        deg = toFloat(deg[0]);
        (cy == null) && (cx = cy);
        if (cx == null || cy == null) {
            var bbox = this.getBBox(1);
            cx = bbox.x + bbox.width / 2;
            cy = bbox.y + bbox.height / 2;
        }
        this.transform(this._.transform.concat([["r", deg, cx, cy]]));
        return this;
    };
    /*\
     * Element.scale
     [ method ]
     **
     * Deprecated! Use @Element.transform instead.
     * Adds scale by given amount relative to given point to the list of
     * transformations of the element.
     > Parameters
     - sx (number) horisontal scale amount
     - sy (number) vertical scale amount
     - cx (number) #optional x coordinate of the centre of scale
     - cy (number) #optional y coordinate of the centre of scale
     * If cx & cy aren’t specified centre of the shape is used instead.
     = (object) @Element
     \*/
    elproto.scale = function (sx, sy, cx, cy) {
        if (this.removed) {
            return this;
        }
        sx = Str(sx).split(separator);
        if (sx.length - 1) {
            sy = toFloat(sx[1]);
            cx = toFloat(sx[2]);
            cy = toFloat(sx[3]);
        }
        sx = toFloat(sx[0]);
        (sy == null) && (sy = sx);
        (cy == null) && (cx = cy);
        if (cx == null || cy == null) {
            var bbox = this.getBBox(1);
        }
        cx = cx == null ? bbox.x + bbox.width / 2 : cx;
        cy = cy == null ? bbox.y + bbox.height / 2 : cy;
        this.transform(this._.transform.concat([["s", sx, sy, cx, cy]]));
        return this;
    };
    /*\
     * Element.translate
     [ method ]
     **
     * Deprecated! Use @Element.transform instead.
     * Adds translation by given amount to the list of transformations of the element.
     > Parameters
     - dx (number) horisontal shift
     - dy (number) vertical shift
     = (object) @Element
     \*/
    elproto.translate = function (dx, dy) {
        if (this.removed) {
            return this;
        }
        dx = Str(dx).split(separator);
        if (dx.length - 1) {
            dy = toFloat(dx[1]);
        }
        dx = toFloat(dx[0]) || 0;
        dy = +dy || 0;
        this.transform(this._.transform.concat([["t", dx, dy]]));
        return this;
    };
    /*\
     * Element.transform
     [ method ]
     **
     * Adds transformation to the element which is separate to other attributes,
     * i.e. translation doesn’t change `x` or `y` of the rectange. The format
     * of transformation string is similar to the path string syntax:
     | "t100,100r30,100,100s2,2,100,100r45s1.5"
     * Each letter is a command. There are four commands: `t` is for translate, `r` is for rotate, `s` is for
     * scale and `m` is for matrix.
     *
     * There are also alternative “absolute” translation, rotation and scale: `T`, `R` and `S`. They will not take previous transformation into account. For example, `...T100,0` will always move element 100 px horisontally, while `...t100,0` could move it vertically if there is `r90` before. Just compare results of `r90t100,0` and `r90T100,0`.
     *
     * So, the example line above could be read like “translate by 100, 100; rotate 30° around 100, 100; scale twice around 100, 100;
     * rotate 45° around centre; scale 1.5 times relative to centre”. As you can see rotate and scale commands have origin
     * coordinates as optional parameters, the default is the centre point of the element.
     * Matrix accepts six parameters.
     > Usage
     | var el = paper.rect(10, 20, 300, 200);
     | // translate 100, 100, rotate 45°, translate -100, 0
     | el.transform("t100,100r45t-100,0");
     | // if you want you can append or prepend transformations
     | el.transform("...t50,50");
     | el.transform("s2...");
     | // or even wrap
     | el.transform("t50,50...t-50-50");
     | // to reset transformation call method with empty string
     | el.transform("");
     | // to get current value call it without parameters
     | console.log(el.transform());
     > Parameters
     - tstr (string) #optional transformation string
     * If tstr isn’t specified
     = (string) current transformation string
     * else
     = (object) @Element
     \*/
    elproto.transform = function (tstr) {
        var _ = this._;
        if (tstr == null) {
            return _.transform;
        }
        R._extractTransform(this, tstr);

        this.clip && $(this.clip, {transform: this.matrix.invert()});
        this.pattern && updatePosition(this);
        this.node && $(this.node, {transform: this.matrix});

        if (_.sx != 1 || _.sy != 1) {
            var sw = this.attrs[has]("stroke-width") ? this.attrs["stroke-width"] : 1;
            this.attr({"stroke-width": sw});
        }

        return this;
    };
    /*\
     * Element.hide
     [ method ]
     **
     * Makes element invisible. See @Element.show.
     = (object) @Element
     \*/
    elproto.hide = function () {
        if(!this.removed) this.node.style.display = "none";
        return this;
    };
    /*\
     * Element.show
     [ method ]
     **
     * Makes element visible. See @Element.hide.
     = (object) @Element
     \*/
    elproto.show = function () {
        if(!this.removed) this.node.style.display = "";
        return this;
    };
    /*\
     * Element.remove
     [ method ]
     **
     * Removes element from the paper.
     \*/
    elproto.remove = function () {
        var node = getRealNode(this.node);
        if (this.removed || !node.parentNode) {
            return;
        }
        var paper = this.paper;
        paper.__set__ && paper.__set__.exclude(this);
        eve.unbind("raphael.*.*." + this.id);
        if (this.gradient) {
            paper.defs.removeChild(this.gradient);
        }
        R._tear(this, paper);

        node.parentNode.removeChild(node);

        // Remove custom data for element
        this.removeData();

        for (var i in this) {
            this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
        }
        this.removed = true;
    };
    elproto._getBBox = function () {
        if (this.node.style.display == "none") {
            this.show();
            var hide = true;
        }
        var canvasHidden = false,
            containerStyle;
        if (this.paper.canvas.parentElement) {
            containerStyle = this.paper.canvas.parentElement.style;
        } //IE10+ can't find parentElement
        else if (this.paper.canvas.parentNode) {
            containerStyle = this.paper.canvas.parentNode.style;
        }

        if(containerStyle && containerStyle.display == "none") {
            canvasHidden = true;
            containerStyle.display = "";
        }
        var bbox = {};
        try {
            bbox = this.node.getBBox();
        } catch(e) {
            // Firefox 3.0.x, 25.0.1 (probably more versions affected) play badly here - possible fix
            bbox = {
                x: this.node.clientLeft,
                y: this.node.clientTop,
                width: this.node.clientWidth,
                height: this.node.clientHeight
            }
        } finally {
            bbox = bbox || {};
            if(canvasHidden){
                containerStyle.display = "none";
            }
        }
        hide && this.hide();
        return bbox;
    };
    /*\
     * Element.attr
     [ method ]
     **
     * Sets the attributes of the element.
     > Parameters
     - attrName (string) attribute’s name
     - value (string) value
     * or
     - params (object) object of name/value pairs
     * or
     - attrName (string) attribute’s name
     * or
     - attrNames (array) in this case method returns array of current values for given attribute names
     = (object) @Element if attrsName & value or params are passed in.
     = (...) value of the attribute if only attrsName is passed in.
     = (array) array of values of the attribute if attrsNames is passed in.
     = (object) object of attributes if nothing is passed in.
     > Possible parameters
     # <p>Please refer to the <a href="http://www.w3.org/TR/SVG/" title="The W3C Recommendation for the SVG language describes these properties in detail.">SVG specification</a> for an explanation of these parameters.</p>
     o arrow-end (string) arrowhead on the end of the path. The format for string is `<type>[-<width>[-<length>]]`. Possible types: `classic`, `block`, `open`, `oval`, `diamond`, `none`, width: `wide`, `narrow`, `medium`, length: `long`, `short`, `midium`.
     o clip-rect (string) comma or space separated values: x, y, width and height
     o cursor (string) CSS type of the cursor
     o cx (number) the x-axis coordinate of the center of the circle, or ellipse
     o cy (number) the y-axis coordinate of the center of the circle, or ellipse
     o fill (string) colour, gradient or image
     o fill-opacity (number)
     o font (string)
     o font-family (string)
     o font-size (number) font size in pixels
     o font-weight (string)
     o height (number)
     o href (string) URL, if specified element behaves as hyperlink
     o opacity (number)
     o path (string) SVG path string format
     o r (number) radius of the circle, ellipse or rounded corner on the rect
     o rx (number) horisontal radius of the ellipse
     o ry (number) vertical radius of the ellipse
     o src (string) image URL, only works for @Element.image element
     o stroke (string) stroke colour
     o stroke-dasharray (string) [“”, “none”, “`-`”, “`.`”, “`-.`”, “`-..`”, “`. `”, “`- `”, “`--`”, “`- .`”, “`--.`”, “`--..`”]
     o stroke-linecap (string) [“`butt`”, “`square`”, “`round`”]
     o stroke-linejoin (string) [“`bevel`”, “`round`”, “`miter`”]
     o stroke-miterlimit (number)
     o stroke-opacity (number)
     o stroke-width (number) stroke width in pixels, default is '1'
     o target (string) used with href
     o text (string) contents of the text element. Use `\n` for multiline text
     o text-anchor (string) [“`start`”, “`middle`”, “`end`”], default is “`middle`”
     o title (string) will create tooltip with a given text
     o transform (string) see @Element.transform
     o width (number)
     o x (number)
     o y (number)
     > Gradients
     * Linear gradient format: “`‹angle›-‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`90-#fff-#000`” – 90°
     * gradient from white to black or “`0-#fff-#f00:20-#000`” – 0° gradient from white via red (at 20%) to black.
     *
     * radial gradient: “`r[(‹fx›, ‹fy›)]‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`r#fff-#000`” –
     * gradient from white to black or “`r(0.25, 0.75)#fff-#000`” – gradient from white to black with focus point
     * at 0.25, 0.75. Focus point coordinates are in 0..1 range. Radial gradients can only be applied to circles and ellipses.
     > Path String
     # <p>Please refer to <a href="http://www.w3.org/TR/SVG/paths.html#PathData" title="Details of a path’s data attribute’s format are described in the SVG specification.">SVG documentation regarding path string</a>. Raphaël fully supports it.</p>
     > Colour Parsing
     # <ul>
     #     <li>Colour name (“<code>red</code>”, “<code>green</code>”, “<code>cornflowerblue</code>”, etc)</li>
     #     <li>#••• — shortened HTML colour: (“<code>#000</code>”, “<code>#fc0</code>”, etc)</li>
     #     <li>#•••••• — full length HTML colour: (“<code>#000000</code>”, “<code>#bd2300</code>”)</li>
     #     <li>rgb(•••, •••, •••) — red, green and blue channels’ values: (“<code>rgb(200,&nbsp;100,&nbsp;0)</code>”)</li>
     #     <li>rgb(•••%, •••%, •••%) — same as above, but in %: (“<code>rgb(100%,&nbsp;175%,&nbsp;0%)</code>”)</li>
     #     <li>rgba(•••, •••, •••, •••) — red, green and blue channels’ values: (“<code>rgba(200,&nbsp;100,&nbsp;0, .5)</code>”)</li>
     #     <li>rgba(•••%, •••%, •••%, •••%) — same as above, but in %: (“<code>rgba(100%,&nbsp;175%,&nbsp;0%, 50%)</code>”)</li>
     #     <li>hsb(•••, •••, •••) — hue, saturation and brightness values: (“<code>hsb(0.5,&nbsp;0.25,&nbsp;1)</code>”)</li>
     #     <li>hsb(•••%, •••%, •••%) — same as above, but in %</li>
     #     <li>hsba(•••, •••, •••, •••) — same as above, but with opacity</li>
     #     <li>hsl(•••, •••, •••) — almost the same as hsb, see <a href="http://en.wikipedia.org/wiki/HSL_and_HSV" title="HSL and HSV - Wikipedia, the free encyclopedia">Wikipedia page</a></li>
     #     <li>hsl(•••%, •••%, •••%) — same as above, but in %</li>
     #     <li>hsla(•••, •••, •••, •••) — same as above, but with opacity</li>
     #     <li>Optionally for hsb and hsl you could specify hue as a degree: “<code>hsl(240deg,&nbsp;1,&nbsp;.5)</code>” or, if you want to go fancy, “<code>hsl(240°,&nbsp;1,&nbsp;.5)</code>”</li>
     # </ul>
     \*/
    elproto.attr = function (name, value) {
        if (this.removed) {
            return this;
        }
        if (name == null) {
            var res = {};
            for (var a in this.attrs) if (this.attrs[has](a)) {
                res[a] = this.attrs[a];
            }
            res.gradient && res.fill == "none" && (res.fill = res.gradient) && delete res.gradient;
            res.transform = this._.transform;
            return res;
        }
        if (value == null && R.is(name, "string")) {
            if (name == "fill" && this.attrs.fill == "none" && this.attrs.gradient) {
                return this.attrs.gradient;
            }
            if (name == "transform") {
                return this._.transform;
            }
            var names = name.split(separator),
                out = {};
            for (var i = 0, ii = names.length; i < ii; i++) {
                name = names[i];
                if (name in this.attrs) {
                    out[name] = this.attrs[name];
                } else if (R.is(this.paper.customAttributes[name], "function")) {
                    out[name] = this.paper.customAttributes[name].def;
                } else {
                    out[name] = R._availableAttrs[name];
                }
            }
            return ii - 1 ? out : out[names[0]];
        }
        if (value == null && R.is(name, "array")) {
            out = {};
            for (i = 0, ii = name.length; i < ii; i++) {
                out[name[i]] = this.attr(name[i]);
            }
            return out;
        }
        if (value != null) {
            var params = {};
            params[name] = value;
        } else if (name != null && R.is(name, "object")) {
            params = name;
        }
        for (var key in params) {
            eve("raphael.attr." + key + "." + this.id, this, params[key]);
        }
        for (key in this.paper.customAttributes) if (this.paper.customAttributes[has](key) && params[has](key) && R.is(this.paper.customAttributes[key], "function")) {
            var par = this.paper.customAttributes[key].apply(this, [].concat(params[key]));
            this.attrs[key] = params[key];
            for (var subkey in par) if (par[has](subkey)) {
                params[subkey] = par[subkey];
            }
        }
        setFillAndStroke(this, params);
        return this;
    };
    /*\
     * Element.toFront
     [ method ]
     **
     * Moves the element so it is the closest to the viewer’s eyes, on top of other elements.
     = (object) @Element
     \*/
    elproto.toFront = function () {
        if (this.removed) {
            return this;
        }
        var node = getRealNode(this.node);
        node.parentNode.appendChild(node);
        var svg = this.paper;
        svg.top != this && R._tofront(this, svg);
        return this;
    };
    /*\
     * Element.toBack
     [ method ]
     **
     * Moves the element so it is the furthest from the viewer’s eyes, behind other elements.
     = (object) @Element
     \*/
    elproto.toBack = function () {
        if (this.removed) {
            return this;
        }
        var node = getRealNode(this.node);
        var parentNode = node.parentNode;
        parentNode.insertBefore(node, parentNode.firstChild);
        R._toback(this, this.paper);
        var svg = this.paper;
        return this;
    };
    /*\
     * Element.insertAfter
     [ method ]
     **
     * Inserts current object after the given one.
     = (object) @Element
     \*/
    elproto.insertAfter = function (element) {
        if (this.removed || !element) {
            return this;
        }

        var node = getRealNode(this.node);
        var afterNode = getRealNode(element.node || element[element.length - 1].node);
        if (afterNode.nextSibling) {
            afterNode.parentNode.insertBefore(node, afterNode.nextSibling);
        } else {
            afterNode.parentNode.appendChild(node);
        }
        R._insertafter(this, element, this.paper);
        return this;
    };
    /*\
     * Element.insertBefore
     [ method ]
     **
     * Inserts current object before the given one.
     = (object) @Element
     \*/
    elproto.insertBefore = function (element) {
        if (this.removed || !element) {
            return this;
        }

        var node = getRealNode(this.node);
        var beforeNode = getRealNode(element.node || element[0].node);
        beforeNode.parentNode.insertBefore(node, beforeNode);
        R._insertbefore(this, element, this.paper);
        return this;
    };
    elproto.blur = function (size) {
        // Experimental. No Safari support. Use it on your own risk.
        var t = this;
        if (+size !== 0) {
            var fltr = $("filter"),
                blur = $("feGaussianBlur");
            t.attrs.blur = size;
            fltr.id = R.createUUID();
            $(blur, {stdDeviation: +size || 1.5});
            fltr.appendChild(blur);
            t.paper.defs.appendChild(fltr);
            t._blur = fltr;
            $(t.node, {filter: "url(#" + fltr.id + ")"});
        } else {
            if (t._blur) {
                t._blur.parentNode.removeChild(t._blur);
                delete t._blur;
                delete t.attrs.blur;
            }
            t.node.removeAttribute("filter");
        }
        return t;
    };
    R._engine.circle = function (svg, x, y, r) {
        var el = $("circle");
        svg.canvas && svg.canvas.appendChild(el);
        var res = new Element(el, svg);
        res.attrs = {cx: x, cy: y, r: r, fill: "none", stroke: "#000"};
        res.type = "circle";
        $(el, res.attrs);
        return res;
    };
    R._engine.rect = function (svg, x, y, w, h, r) {
        var el = $("rect");
        svg.canvas && svg.canvas.appendChild(el);
        var res = new Element(el, svg);
        res.attrs = {x: x, y: y, width: w, height: h, rx: r || 0, ry: r || 0, fill: "none", stroke: "#000"};
        res.type = "rect";
        $(el, res.attrs);
        return res;
    };
    R._engine.ellipse = function (svg, x, y, rx, ry) {
        var el = $("ellipse");
        svg.canvas && svg.canvas.appendChild(el);
        var res = new Element(el, svg);
        res.attrs = {cx: x, cy: y, rx: rx, ry: ry, fill: "none", stroke: "#000"};
        res.type = "ellipse";
        $(el, res.attrs);
        return res;
    };
    R._engine.image = function (svg, src, x, y, w, h) {
        var el = $("image");
        $(el, {x: x, y: y, width: w, height: h, preserveAspectRatio: "none"});
        el.setAttributeNS(xlink, "href", src);
        svg.canvas && svg.canvas.appendChild(el);
        var res = new Element(el, svg);
        res.attrs = {x: x, y: y, width: w, height: h, src: src};
        res.type = "image";
        return res;
    };
    R._engine.text = function (svg, x, y, text) {
        var el = $("text");
        svg.canvas && svg.canvas.appendChild(el);
        var res = new Element(el, svg);
        res.attrs = {
            x: x,
            y: y,
            "text-anchor": "middle",
            text: text,
            "font-family": R._availableAttrs["font-family"],
            "font-size": R._availableAttrs["font-size"],
            stroke: "none",
            fill: "#000"
        };
        res.type = "text";
        setFillAndStroke(res, res.attrs);
        return res;
    };
    R._engine.setSize = function (width, height) {
        this.width = width || this.width;
        this.height = height || this.height;
        this.canvas.setAttribute("width", this.width);
        this.canvas.setAttribute("height", this.height);
        if (this._viewBox) {
            this.setViewBox.apply(this, this._viewBox);
        }
        return this;
    };
    R._engine.create = function () {
        var con = R._getContainer.apply(0, arguments),
            container = con && con.container,
            x = con.x,
            y = con.y,
            width = con.width,
            height = con.height;
        if (!container) {
            throw new Error("SVG container not found.");
        }
        var cnvs = $("svg"),
            css = "overflow:hidden;",
            isFloating;
        x = x || 0;
        y = y || 0;
        width = width || 512;
        height = height || 342;
        $(cnvs, {
            height: height,
            version: 1.1,
            width: width,
            xmlns: "http://www.w3.org/2000/svg",
            "xmlns:xlink": "http://www.w3.org/1999/xlink"
        });
        if (container == 1) {
            cnvs.style.cssText = css + "position:absolute;left:" + x + "px;top:" + y + "px";
            R._g.doc.body.appendChild(cnvs);
            isFloating = 1;
        } else {
            cnvs.style.cssText = css + "position:relative";
            if (container.firstChild) {
                container.insertBefore(cnvs, container.firstChild);
            } else {
                container.appendChild(cnvs);
            }
        }
        container = new R._Paper;
        container.width = width;
        container.height = height;
        container.canvas = cnvs;
        container.clear();
        container._left = container._top = 0;
        isFloating && (container.renderfix = function () {});
        container.renderfix();
        return container;
    };
    R._engine.setViewBox = function (x, y, w, h, fit) {
        eve("raphael.setViewBox", this, this._viewBox, [x, y, w, h, fit]);
        var paperSize = this.getSize(),
            size = mmax(w / paperSize.width, h / paperSize.height),
            top = this.top,
            aspectRatio = fit ? "xMidYMid meet" : "xMinYMin",
            vb,
            sw;
        if (x == null) {
            if (this._vbSize) {
                size = 1;
            }
            delete this._vbSize;
            vb = "0 0 " + this.width + S + this.height;
        } else {
            this._vbSize = size;
            vb = x + S + y + S + w + S + h;
        }
        $(this.canvas, {
            viewBox: vb,
            preserveAspectRatio: aspectRatio
        });
        while (size && top) {
            sw = "stroke-width" in top.attrs ? top.attrs["stroke-width"] : 1;
            top.attr({"stroke-width": sw});
            top._.dirty = 1;
            top._.dirtyT = 1;
            top = top.prev;
        }
        this._viewBox = [x, y, w, h, !!fit];
        return this;
    };
    /*\
     * Paper.renderfix
     [ method ]
     **
     * Fixes the issue of Firefox and IE9 regarding subpixel rendering. If paper is dependant
     * on other elements after reflow it could shift half pixel which cause for lines to lost their crispness.
     * This method fixes the issue.
     **
     Special thanks to Mariusz Nowak (http://www.medikoo.com/) for this method.
     \*/
    R.prototype.renderfix = function () {
        var cnvs = this.canvas,
            s = cnvs.style,
            pos;
        try {
            pos = cnvs.getScreenCTM() || cnvs.createSVGMatrix();
        } catch (e) {
            pos = cnvs.createSVGMatrix();
        }
        var left = -pos.e % 1,
            top = -pos.f % 1;
        if (left || top) {
            if (left) {
                this._left = (this._left + left) % 1;
                s.left = this._left + "px";
            }
            if (top) {
                this._top = (this._top + top) % 1;
                s.top = this._top + "px";
            }
        }
    };
    /*\
     * Paper.clear
     [ method ]
     **
     * Clears the paper, i.e. removes all the elements.
     \*/
    R.prototype.clear = function () {
        R.eve("raphael.clear", this);
        var c = this.canvas;
        while (c.firstChild) {
            c.removeChild(c.firstChild);
        }
        this.bottom = this.top = null;
        (this.desc = $("desc")).appendChild(R._g.doc.createTextNode("Created with Rapha\xebl " + R.version));
        c.appendChild(this.desc);
        c.appendChild(this.defs = $("defs"));
    };
    /*\
     * Paper.remove
     [ method ]
     **
     * Removes the paper from the DOM.
     \*/
    R.prototype.remove = function () {
        eve("raphael.remove", this);
        this.canvas.parentNode && this.canvas.parentNode.removeChild(this.canvas);
        for (var i in this) {
            this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
        }
    };
    var setproto = R.st;
    for (var method in elproto) if (elproto[has](method) && !setproto[has](method)) {
        setproto[method] = (function (methodname) {
            return function () {
                var arg = arguments;
                return this.forEach(function (el) {
                    el[methodname].apply(el, arg);
                });
            };
        })(method);
    }
}));

// ┌─────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël 2.1.4 - JavaScript Vector Library                       │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ VML Module                                                          │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright (c) 2008-2011 Dmitry Baranovskiy (http://raphaeljs.com)   │ \\
// │ Copyright (c) 2008-2011 Sencha Labs (http://sencha.com)             │ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license. │ \\
// └─────────────────────────────────────────────────────────────────────┘ \\

(function (glob, factory) {
    if (typeof define === "function" && define.amd) {
        define("raphael.vml", ["raphael.core"], function(raphael) {
            return factory(raphael);
        });
    } else if (typeof exports === "object") {
        factory(require("raphael"));
    } else {
        factory(glob.Raphael);
    }
}(this, function(R) {
    if (R && !R.vml) {
        return;
    }

    var has = "hasOwnProperty",
        Str = String,
        toFloat = parseFloat,
        math = Math,
        round = math.round,
        mmax = math.max,
        mmin = math.min,
        abs = math.abs,
        fillString = "fill",
        separator = /[, ]+/,
        eve = R.eve,
        ms = " progid:DXImageTransform.Microsoft",
        S = " ",
        E = "",
        map = {M: "m", L: "l", C: "c", Z: "x", m: "t", l: "r", c: "v", z: "x"},
        bites = /([clmz]),?([^clmz]*)/gi,
        blurregexp = / progid:\S+Blur\([^\)]+\)/g,
        val = /-?[^,\s-]+/g,
        cssDot = "position:absolute;left:0;top:0;width:1px;height:1px;behavior:url(#default#VML)",
        zoom = 21600,
        pathTypes = {path: 1, rect: 1, image: 1},
        ovalTypes = {circle: 1, ellipse: 1},
        path2vml = function (path) {
            var total =  /[ahqstv]/ig,
                command = R._pathToAbsolute;
            Str(path).match(total) && (command = R._path2curve);
            total = /[clmz]/g;
            if (command == R._pathToAbsolute && !Str(path).match(total)) {
                var res = Str(path).replace(bites, function (all, command, args) {
                    var vals = [],
                        isMove = command.toLowerCase() == "m",
                        res = map[command];
                    args.replace(val, function (value) {
                        if (isMove && vals.length == 2) {
                            res += vals + map[command == "m" ? "l" : "L"];
                            vals = [];
                        }
                        vals.push(round(value * zoom));
                    });
                    return res + vals;
                });
                return res;
            }
            var pa = command(path), p, r;
            res = [];
            for (var i = 0, ii = pa.length; i < ii; i++) {
                p = pa[i];
                r = pa[i][0].toLowerCase();
                r == "z" && (r = "x");
                for (var j = 1, jj = p.length; j < jj; j++) {
                    r += round(p[j] * zoom) + (j != jj - 1 ? "," : E);
                }
                res.push(r);
            }
            return res.join(S);
        },
        compensation = function (deg, dx, dy) {
            var m = R.matrix();
            m.rotate(-deg, .5, .5);
            return {
                dx: m.x(dx, dy),
                dy: m.y(dx, dy)
            };
        },
        setCoords = function (p, sx, sy, dx, dy, deg) {
            var _ = p._,
                m = p.matrix,
                fillpos = _.fillpos,
                o = p.node,
                s = o.style,
                y = 1,
                flip = "",
                dxdy,
                kx = zoom / sx,
                ky = zoom / sy;
            s.visibility = "hidden";
            if (!sx || !sy) {
                return;
            }
            o.coordsize = abs(kx) + S + abs(ky);
            s.rotation = deg * (sx * sy < 0 ? -1 : 1);
            if (deg) {
                var c = compensation(deg, dx, dy);
                dx = c.dx;
                dy = c.dy;
            }
            sx < 0 && (flip += "x");
            sy < 0 && (flip += " y") && (y = -1);
            s.flip = flip;
            o.coordorigin = (dx * -kx) + S + (dy * -ky);
            if (fillpos || _.fillsize) {
                var fill = o.getElementsByTagName(fillString);
                fill = fill && fill[0];
                o.removeChild(fill);
                if (fillpos) {
                    c = compensation(deg, m.x(fillpos[0], fillpos[1]), m.y(fillpos[0], fillpos[1]));
                    fill.position = c.dx * y + S + c.dy * y;
                }
                if (_.fillsize) {
                    fill.size = _.fillsize[0] * abs(sx) + S + _.fillsize[1] * abs(sy);
                }
                o.appendChild(fill);
            }
            s.visibility = "visible";
        };
    R.toString = function () {
        return  "Your browser doesn\u2019t support SVG. Falling down to VML.\nYou are running Rapha\xebl " + this.version;
    };
    var addArrow = function (o, value, isEnd) {
            var values = Str(value).toLowerCase().split("-"),
                se = isEnd ? "end" : "start",
                i = values.length,
                type = "classic",
                w = "medium",
                h = "medium";
            while (i--) {
                switch (values[i]) {
                    case "block":
                    case "classic":
                    case "oval":
                    case "diamond":
                    case "open":
                    case "none":
                        type = values[i];
                        break;
                    case "wide":
                    case "narrow": h = values[i]; break;
                    case "long":
                    case "short": w = values[i]; break;
                }
            }
            var stroke = o.node.getElementsByTagName("stroke")[0];
            stroke[se + "arrow"] = type;
            stroke[se + "arrowlength"] = w;
            stroke[se + "arrowwidth"] = h;
        },
        setFillAndStroke = function (o, params) {
            // o.paper.canvas.style.display = "none";
            o.attrs = o.attrs || {};
            var node = o.node,
                a = o.attrs,
                s = node.style,
                xy,
                newpath = pathTypes[o.type] && (params.x != a.x || params.y != a.y || params.width != a.width || params.height != a.height || params.cx != a.cx || params.cy != a.cy || params.rx != a.rx || params.ry != a.ry || params.r != a.r),
                isOval = ovalTypes[o.type] && (a.cx != params.cx || a.cy != params.cy || a.r != params.r || a.rx != params.rx || a.ry != params.ry),
                res = o;


            for (var par in params) if (params[has](par)) {
                a[par] = params[par];
            }
            if (newpath) {
                a.path = R._getPath[o.type](o);
                o._.dirty = 1;
            }
            params.href && (node.href = params.href);
            params.title && (node.title = params.title);
            params.target && (node.target = params.target);
            params.cursor && (s.cursor = params.cursor);
            "blur" in params && o.blur(params.blur);
            if (params.path && o.type == "path" || newpath) {
                node.path = path2vml(~Str(a.path).toLowerCase().indexOf("r") ? R._pathToAbsolute(a.path) : a.path);
                o._.dirty = 1;
                if (o.type == "image") {
                    o._.fillpos = [a.x, a.y];
                    o._.fillsize = [a.width, a.height];
                    setCoords(o, 1, 1, 0, 0, 0);
                }
            }
            "transform" in params && o.transform(params.transform);
            if (isOval) {
                var cx = +a.cx,
                    cy = +a.cy,
                    rx = +a.rx || +a.r || 0,
                    ry = +a.ry || +a.r || 0;
                node.path = R.format("ar{0},{1},{2},{3},{4},{1},{4},{1}x", round((cx - rx) * zoom), round((cy - ry) * zoom), round((cx + rx) * zoom), round((cy + ry) * zoom), round(cx * zoom));
                o._.dirty = 1;
            }
            if ("clip-rect" in params) {
                var rect = Str(params["clip-rect"]).split(separator);
                if (rect.length == 4) {
                    rect[2] = +rect[2] + (+rect[0]);
                    rect[3] = +rect[3] + (+rect[1]);
                    var div = node.clipRect || R._g.doc.createElement("div"),
                        dstyle = div.style;
                    dstyle.clip = R.format("rect({1}px {2}px {3}px {0}px)", rect);
                    if (!node.clipRect) {
                        dstyle.position = "absolute";
                        dstyle.top = 0;
                        dstyle.left = 0;
                        dstyle.width = o.paper.width + "px";
                        dstyle.height = o.paper.height + "px";
                        node.parentNode.insertBefore(div, node);
                        div.appendChild(node);
                        node.clipRect = div;
                    }
                }
                if (!params["clip-rect"]) {
                    node.clipRect && (node.clipRect.style.clip = "auto");
                }
            }
            if (o.textpath) {
                var textpathStyle = o.textpath.style;
                params.font && (textpathStyle.font = params.font);
                params["font-family"] && (textpathStyle.fontFamily = '"' + params["font-family"].split(",")[0].replace(/^['"]+|['"]+$/g, E) + '"');
                params["font-size"] && (textpathStyle.fontSize = params["font-size"]);
                params["font-weight"] && (textpathStyle.fontWeight = params["font-weight"]);
                params["font-style"] && (textpathStyle.fontStyle = params["font-style"]);
            }
            if ("arrow-start" in params) {
                addArrow(res, params["arrow-start"]);
            }
            if ("arrow-end" in params) {
                addArrow(res, params["arrow-end"], 1);
            }
            if (params.opacity != null ||
                params["stroke-width"] != null ||
                params.fill != null ||
                params.src != null ||
                params.stroke != null ||
                params["stroke-width"] != null ||
                params["stroke-opacity"] != null ||
                params["fill-opacity"] != null ||
                params["stroke-dasharray"] != null ||
                params["stroke-miterlimit"] != null ||
                params["stroke-linejoin"] != null ||
                params["stroke-linecap"] != null) {
                var fill = node.getElementsByTagName(fillString),
                    newfill = false;
                fill = fill && fill[0];
                !fill && (newfill = fill = createNode(fillString));
                if (o.type == "image" && params.src) {
                    fill.src = params.src;
                }
                params.fill && (fill.on = true);
                if (fill.on == null || params.fill == "none" || params.fill === null) {
                    fill.on = false;
                }
                if (fill.on && params.fill) {
                    var isURL = Str(params.fill).match(R._ISURL);
                    if (isURL) {
                        fill.parentNode == node && node.removeChild(fill);
                        fill.rotate = true;
                        fill.src = isURL[1];
                        fill.type = "tile";
                        var bbox = o.getBBox(1);
                        fill.position = bbox.x + S + bbox.y;
                        o._.fillpos = [bbox.x, bbox.y];

                        R._preload(isURL[1], function () {
                            o._.fillsize = [this.offsetWidth, this.offsetHeight];
                        });
                    } else {
                        fill.color = R.getRGB(params.fill).hex;
                        fill.src = E;
                        fill.type = "solid";
                        if (R.getRGB(params.fill).error && (res.type in {circle: 1, ellipse: 1} || Str(params.fill).charAt() != "r") && addGradientFill(res, params.fill, fill)) {
                            a.fill = "none";
                            a.gradient = params.fill;
                            fill.rotate = false;
                        }
                    }
                }
                if ("fill-opacity" in params || "opacity" in params) {
                    var opacity = ((+a["fill-opacity"] + 1 || 2) - 1) * ((+a.opacity + 1 || 2) - 1) * ((+R.getRGB(params.fill).o + 1 || 2) - 1);
                    opacity = mmin(mmax(opacity, 0), 1);
                    fill.opacity = opacity;
                    if (fill.src) {
                        fill.color = "none";
                    }
                }
                node.appendChild(fill);
                var stroke = (node.getElementsByTagName("stroke") && node.getElementsByTagName("stroke")[0]),
                    newstroke = false;
                !stroke && (newstroke = stroke = createNode("stroke"));
                if ((params.stroke && params.stroke != "none") ||
                    params["stroke-width"] ||
                    params["stroke-opacity"] != null ||
                    params["stroke-dasharray"] ||
                    params["stroke-miterlimit"] ||
                    params["stroke-linejoin"] ||
                    params["stroke-linecap"]) {
                    stroke.on = true;
                }
                (params.stroke == "none" || params.stroke === null || stroke.on == null || params.stroke == 0 || params["stroke-width"] == 0) && (stroke.on = false);
                var strokeColor = R.getRGB(params.stroke);
                stroke.on && params.stroke && (stroke.color = strokeColor.hex);
                opacity = ((+a["stroke-opacity"] + 1 || 2) - 1) * ((+a.opacity + 1 || 2) - 1) * ((+strokeColor.o + 1 || 2) - 1);
                var width = (toFloat(params["stroke-width"]) || 1) * .75;
                opacity = mmin(mmax(opacity, 0), 1);
                params["stroke-width"] == null && (width = a["stroke-width"]);
                params["stroke-width"] && (stroke.weight = width);
                width && width < 1 && (opacity *= width) && (stroke.weight = 1);
                stroke.opacity = opacity;

                params["stroke-linejoin"] && (stroke.joinstyle = params["stroke-linejoin"] || "miter");
                stroke.miterlimit = params["stroke-miterlimit"] || 8;
                params["stroke-linecap"] && (stroke.endcap = params["stroke-linecap"] == "butt" ? "flat" : params["stroke-linecap"] == "square" ? "square" : "round");
                if ("stroke-dasharray" in params) {
                    var dasharray = {
                        "-": "shortdash",
                        ".": "shortdot",
                        "-.": "shortdashdot",
                        "-..": "shortdashdotdot",
                        ". ": "dot",
                        "- ": "dash",
                        "--": "longdash",
                        "- .": "dashdot",
                        "--.": "longdashdot",
                        "--..": "longdashdotdot"
                    };
                    stroke.dashstyle = dasharray[has](params["stroke-dasharray"]) ? dasharray[params["stroke-dasharray"]] : E;
                }
                newstroke && node.appendChild(stroke);
            }
            if (res.type == "text") {
                res.paper.canvas.style.display = E;
                var span = res.paper.span,
                    m = 100,
                    fontSize = a.font && a.font.match(/\d+(?:\.\d*)?(?=px)/);
                s = span.style;
                a.font && (s.font = a.font);
                a["font-family"] && (s.fontFamily = a["font-family"]);
                a["font-weight"] && (s.fontWeight = a["font-weight"]);
                a["font-style"] && (s.fontStyle = a["font-style"]);
                fontSize = toFloat(a["font-size"] || fontSize && fontSize[0]) || 10;
                s.fontSize = fontSize * m + "px";
                res.textpath.string && (span.innerHTML = Str(res.textpath.string).replace(/</g, "&#60;").replace(/&/g, "&#38;").replace(/\n/g, "<br>"));
                var brect = span.getBoundingClientRect();
                res.W = a.w = (brect.right - brect.left) / m;
                res.H = a.h = (brect.bottom - brect.top) / m;
                // res.paper.canvas.style.display = "none";
                res.X = a.x;
                res.Y = a.y + res.H / 2;

                ("x" in params || "y" in params) && (res.path.v = R.format("m{0},{1}l{2},{1}", round(a.x * zoom), round(a.y * zoom), round(a.x * zoom) + 1));
                var dirtyattrs = ["x", "y", "text", "font", "font-family", "font-weight", "font-style", "font-size"];
                for (var d = 0, dd = dirtyattrs.length; d < dd; d++) if (dirtyattrs[d] in params) {
                    res._.dirty = 1;
                    break;
                }

                // text-anchor emulation
                switch (a["text-anchor"]) {
                    case "start":
                        res.textpath.style["v-text-align"] = "left";
                        res.bbx = res.W / 2;
                        break;
                    case "end":
                        res.textpath.style["v-text-align"] = "right";
                        res.bbx = -res.W / 2;
                        break;
                    default:
                        res.textpath.style["v-text-align"] = "center";
                        res.bbx = 0;
                        break;
                }
                res.textpath.style["v-text-kern"] = true;
            }
            // res.paper.canvas.style.display = E;
        },
        addGradientFill = function (o, gradient, fill) {
            o.attrs = o.attrs || {};
            var attrs = o.attrs,
                pow = Math.pow,
                opacity,
                oindex,
                type = "linear",
                fxfy = ".5 .5";
            o.attrs.gradient = gradient;
            gradient = Str(gradient).replace(R._radial_gradient, function (all, fx, fy) {
                type = "radial";
                if (fx && fy) {
                    fx = toFloat(fx);
                    fy = toFloat(fy);
                    pow(fx - .5, 2) + pow(fy - .5, 2) > .25 && (fy = math.sqrt(.25 - pow(fx - .5, 2)) * ((fy > .5) * 2 - 1) + .5);
                    fxfy = fx + S + fy;
                }
                return E;
            });
            gradient = gradient.split(/\s*\-\s*/);
            if (type == "linear") {
                var angle = gradient.shift();
                angle = -toFloat(angle);
                if (isNaN(angle)) {
                    return null;
                }
            }
            var dots = R._parseDots(gradient);
            if (!dots) {
                return null;
            }
            o = o.shape || o.node;
            if (dots.length) {
                o.removeChild(fill);
                fill.on = true;
                fill.method = "none";
                fill.color = dots[0].color;
                fill.color2 = dots[dots.length - 1].color;
                var clrs = [];
                for (var i = 0, ii = dots.length; i < ii; i++) {
                    dots[i].offset && clrs.push(dots[i].offset + S + dots[i].color);
                }
                fill.colors = clrs.length ? clrs.join() : "0% " + fill.color;
                if (type == "radial") {
                    fill.type = "gradientTitle";
                    fill.focus = "100%";
                    fill.focussize = "0 0";
                    fill.focusposition = fxfy;
                    fill.angle = 0;
                } else {
                    // fill.rotate= true;
                    fill.type = "gradient";
                    fill.angle = (270 - angle) % 360;
                }
                o.appendChild(fill);
            }
            return 1;
        },
        Element = function (node, vml) {
            this[0] = this.node = node;
            node.raphael = true;
            this.id = R._oid++;
            node.raphaelid = this.id;
            this.X = 0;
            this.Y = 0;
            this.attrs = {};
            this.paper = vml;
            this.matrix = R.matrix();
            this._ = {
                transform: [],
                sx: 1,
                sy: 1,
                dx: 0,
                dy: 0,
                deg: 0,
                dirty: 1,
                dirtyT: 1
            };
            !vml.bottom && (vml.bottom = this);
            this.prev = vml.top;
            vml.top && (vml.top.next = this);
            vml.top = this;
            this.next = null;
        };
    var elproto = R.el;

    Element.prototype = elproto;
    elproto.constructor = Element;
    elproto.transform = function (tstr) {
        if (tstr == null) {
            return this._.transform;
        }
        var vbs = this.paper._viewBoxShift,
            vbt = vbs ? "s" + [vbs.scale, vbs.scale] + "-1-1t" + [vbs.dx, vbs.dy] : E,
            oldt;
        if (vbs) {
            oldt = tstr = Str(tstr).replace(/\.{3}|\u2026/g, this._.transform || E);
        }
        R._extractTransform(this, vbt + tstr);
        var matrix = this.matrix.clone(),
            skew = this.skew,
            o = this.node,
            split,
            isGrad = ~Str(this.attrs.fill).indexOf("-"),
            isPatt = !Str(this.attrs.fill).indexOf("url(");
        matrix.translate(1, 1);
        if (isPatt || isGrad || this.type == "image") {
            skew.matrix = "1 0 0 1";
            skew.offset = "0 0";
            split = matrix.split();
            if ((isGrad && split.noRotation) || !split.isSimple) {
                o.style.filter = matrix.toFilter();
                var bb = this.getBBox(),
                    bbt = this.getBBox(1),
                    dx = bb.x - bbt.x,
                    dy = bb.y - bbt.y;
                o.coordorigin = (dx * -zoom) + S + (dy * -zoom);
                setCoords(this, 1, 1, dx, dy, 0);
            } else {
                o.style.filter = E;
                setCoords(this, split.scalex, split.scaley, split.dx, split.dy, split.rotate);
            }
        } else {
            o.style.filter = E;
            skew.matrix = Str(matrix);
            skew.offset = matrix.offset();
        }
        if (oldt !== null) { // empty string value is true as well
            this._.transform = oldt;
            R._extractTransform(this, oldt);
        }
        return this;
    };
    elproto.rotate = function (deg, cx, cy) {
        if (this.removed) {
            return this;
        }
        if (deg == null) {
            return;
        }
        deg = Str(deg).split(separator);
        if (deg.length - 1) {
            cx = toFloat(deg[1]);
            cy = toFloat(deg[2]);
        }
        deg = toFloat(deg[0]);
        (cy == null) && (cx = cy);
        if (cx == null || cy == null) {
            var bbox = this.getBBox(1);
            cx = bbox.x + bbox.width / 2;
            cy = bbox.y + bbox.height / 2;
        }
        this._.dirtyT = 1;
        this.transform(this._.transform.concat([["r", deg, cx, cy]]));
        return this;
    };
    elproto.translate = function (dx, dy) {
        if (this.removed) {
            return this;
        }
        dx = Str(dx).split(separator);
        if (dx.length - 1) {
            dy = toFloat(dx[1]);
        }
        dx = toFloat(dx[0]) || 0;
        dy = +dy || 0;
        if (this._.bbox) {
            this._.bbox.x += dx;
            this._.bbox.y += dy;
        }
        this.transform(this._.transform.concat([["t", dx, dy]]));
        return this;
    };
    elproto.scale = function (sx, sy, cx, cy) {
        if (this.removed) {
            return this;
        }
        sx = Str(sx).split(separator);
        if (sx.length - 1) {
            sy = toFloat(sx[1]);
            cx = toFloat(sx[2]);
            cy = toFloat(sx[3]);
            isNaN(cx) && (cx = null);
            isNaN(cy) && (cy = null);
        }
        sx = toFloat(sx[0]);
        (sy == null) && (sy = sx);
        (cy == null) && (cx = cy);
        if (cx == null || cy == null) {
            var bbox = this.getBBox(1);
        }
        cx = cx == null ? bbox.x + bbox.width / 2 : cx;
        cy = cy == null ? bbox.y + bbox.height / 2 : cy;

        this.transform(this._.transform.concat([["s", sx, sy, cx, cy]]));
        this._.dirtyT = 1;
        return this;
    };
    elproto.hide = function () {
        !this.removed && (this.node.style.display = "none");
        return this;
    };
    elproto.show = function () {
        !this.removed && (this.node.style.display = E);
        return this;
    };
    // Needed to fix the vml setViewBox issues
    elproto.auxGetBBox = R.el.getBBox;
    elproto.getBBox = function(){
        var b = this.auxGetBBox();
        if (this.paper && this.paper._viewBoxShift)
        {
            var c = {};
            var z = 1/this.paper._viewBoxShift.scale;
            c.x = b.x - this.paper._viewBoxShift.dx;
            c.x *= z;
            c.y = b.y - this.paper._viewBoxShift.dy;
            c.y *= z;
            c.width  = b.width  * z;
            c.height = b.height * z;
            c.x2 = c.x + c.width;
            c.y2 = c.y + c.height;
            return c;
        }
        return b;
    };
    elproto._getBBox = function () {
        if (this.removed) {
            return {};
        }
        return {
            x: this.X + (this.bbx || 0) - this.W / 2,
            y: this.Y - this.H,
            width: this.W,
            height: this.H
        };
    };
    elproto.remove = function () {
        if (this.removed || !this.node.parentNode) {
            return;
        }
        this.paper.__set__ && this.paper.__set__.exclude(this);
        R.eve.unbind("raphael.*.*." + this.id);
        R._tear(this, this.paper);
        this.node.parentNode.removeChild(this.node);
        this.shape && this.shape.parentNode.removeChild(this.shape);
        for (var i in this) {
            this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
        }
        this.removed = true;
    };
    elproto.attr = function (name, value) {
        if (this.removed) {
            return this;
        }
        if (name == null) {
            var res = {};
            for (var a in this.attrs) if (this.attrs[has](a)) {
                res[a] = this.attrs[a];
            }
            res.gradient && res.fill == "none" && (res.fill = res.gradient) && delete res.gradient;
            res.transform = this._.transform;
            return res;
        }
        if (value == null && R.is(name, "string")) {
            if (name == fillString && this.attrs.fill == "none" && this.attrs.gradient) {
                return this.attrs.gradient;
            }
            var names = name.split(separator),
                out = {};
            for (var i = 0, ii = names.length; i < ii; i++) {
                name = names[i];
                if (name in this.attrs) {
                    out[name] = this.attrs[name];
                } else if (R.is(this.paper.customAttributes[name], "function")) {
                    out[name] = this.paper.customAttributes[name].def;
                } else {
                    out[name] = R._availableAttrs[name];
                }
            }
            return ii - 1 ? out : out[names[0]];
        }
        if (this.attrs && value == null && R.is(name, "array")) {
            out = {};
            for (i = 0, ii = name.length; i < ii; i++) {
                out[name[i]] = this.attr(name[i]);
            }
            return out;
        }
        var params;
        if (value != null) {
            params = {};
            params[name] = value;
        }
        value == null && R.is(name, "object") && (params = name);
        for (var key in params) {
            eve("raphael.attr." + key + "." + this.id, this, params[key]);
        }
        if (params) {
            for (key in this.paper.customAttributes) if (this.paper.customAttributes[has](key) && params[has](key) && R.is(this.paper.customAttributes[key], "function")) {
                var par = this.paper.customAttributes[key].apply(this, [].concat(params[key]));
                this.attrs[key] = params[key];
                for (var subkey in par) if (par[has](subkey)) {
                    params[subkey] = par[subkey];
                }
            }
            // this.paper.canvas.style.display = "none";
            if (params.text && this.type == "text") {
                this.textpath.string = params.text;
            }
            setFillAndStroke(this, params);
            // this.paper.canvas.style.display = E;
        }
        return this;
    };
    elproto.toFront = function () {
        !this.removed && this.node.parentNode.appendChild(this.node);
        this.paper && this.paper.top != this && R._tofront(this, this.paper);
        return this;
    };
    elproto.toBack = function () {
        if (this.removed) {
            return this;
        }
        if (this.node.parentNode.firstChild != this.node) {
            this.node.parentNode.insertBefore(this.node, this.node.parentNode.firstChild);
            R._toback(this, this.paper);
        }
        return this;
    };
    elproto.insertAfter = function (element) {
        if (this.removed) {
            return this;
        }
        if (element.constructor == R.st.constructor) {
            element = element[element.length - 1];
        }
        if (element.node.nextSibling) {
            element.node.parentNode.insertBefore(this.node, element.node.nextSibling);
        } else {
            element.node.parentNode.appendChild(this.node);
        }
        R._insertafter(this, element, this.paper);
        return this;
    };
    elproto.insertBefore = function (element) {
        if (this.removed) {
            return this;
        }
        if (element.constructor == R.st.constructor) {
            element = element[0];
        }
        element.node.parentNode.insertBefore(this.node, element.node);
        R._insertbefore(this, element, this.paper);
        return this;
    };
    elproto.blur = function (size) {
        var s = this.node.runtimeStyle,
            f = s.filter;
        f = f.replace(blurregexp, E);
        if (+size !== 0) {
            this.attrs.blur = size;
            s.filter = f + S + ms + ".Blur(pixelradius=" + (+size || 1.5) + ")";
            s.margin = R.format("-{0}px 0 0 -{0}px", round(+size || 1.5));
        } else {
            s.filter = f;
            s.margin = 0;
            delete this.attrs.blur;
        }
        return this;
    };

    R._engine.path = function (pathString, vml) {
        var el = createNode("shape");
        el.style.cssText = cssDot;
        el.coordsize = zoom + S + zoom;
        el.coordorigin = vml.coordorigin;
        var p = new Element(el, vml),
            attr = {fill: "none", stroke: "#000"};
        pathString && (attr.path = pathString);
        p.type = "path";
        p.path = [];
        p.Path = E;
        setFillAndStroke(p, attr);
        vml.canvas.appendChild(el);
        var skew = createNode("skew");
        skew.on = true;
        el.appendChild(skew);
        p.skew = skew;
        p.transform(E);
        return p;
    };
    R._engine.rect = function (vml, x, y, w, h, r) {
        var path = R._rectPath(x, y, w, h, r),
            res = vml.path(path),
            a = res.attrs;
        res.X = a.x = x;
        res.Y = a.y = y;
        res.W = a.width = w;
        res.H = a.height = h;
        a.r = r;
        a.path = path;
        res.type = "rect";
        return res;
    };
    R._engine.ellipse = function (vml, x, y, rx, ry) {
        var res = vml.path(),
            a = res.attrs;
        res.X = x - rx;
        res.Y = y - ry;
        res.W = rx * 2;
        res.H = ry * 2;
        res.type = "ellipse";
        setFillAndStroke(res, {
            cx: x,
            cy: y,
            rx: rx,
            ry: ry
        });
        return res;
    };
    R._engine.circle = function (vml, x, y, r) {
        var res = vml.path(),
            a = res.attrs;
        res.X = x - r;
        res.Y = y - r;
        res.W = res.H = r * 2;
        res.type = "circle";
        setFillAndStroke(res, {
            cx: x,
            cy: y,
            r: r
        });
        return res;
    };
    R._engine.image = function (vml, src, x, y, w, h) {
        var path = R._rectPath(x, y, w, h),
            res = vml.path(path).attr({stroke: "none"}),
            a = res.attrs,
            node = res.node,
            fill = node.getElementsByTagName(fillString)[0];
        a.src = src;
        res.X = a.x = x;
        res.Y = a.y = y;
        res.W = a.width = w;
        res.H = a.height = h;
        a.path = path;
        res.type = "image";
        fill.parentNode == node && node.removeChild(fill);
        fill.rotate = true;
        fill.src = src;
        fill.type = "tile";
        res._.fillpos = [x, y];
        res._.fillsize = [w, h];
        node.appendChild(fill);
        setCoords(res, 1, 1, 0, 0, 0);
        return res;
    };
    R._engine.text = function (vml, x, y, text) {
        var el = createNode("shape"),
            path = createNode("path"),
            o = createNode("textpath");
        x = x || 0;
        y = y || 0;
        text = text || "";
        path.v = R.format("m{0},{1}l{2},{1}", round(x * zoom), round(y * zoom), round(x * zoom) + 1);
        path.textpathok = true;
        o.string = Str(text);
        o.on = true;
        el.style.cssText = cssDot;
        el.coordsize = zoom + S + zoom;
        el.coordorigin = "0 0";
        var p = new Element(el, vml),
            attr = {
                fill: "#000",
                stroke: "none",
                font: R._availableAttrs.font,
                text: text
            };
        p.shape = el;
        p.path = path;
        p.textpath = o;
        p.type = "text";
        p.attrs.text = Str(text);
        p.attrs.x = x;
        p.attrs.y = y;
        p.attrs.w = 1;
        p.attrs.h = 1;
        setFillAndStroke(p, attr);
        el.appendChild(o);
        el.appendChild(path);
        vml.canvas.appendChild(el);
        var skew = createNode("skew");
        skew.on = true;
        el.appendChild(skew);
        p.skew = skew;
        p.transform(E);
        return p;
    };
    R._engine.setSize = function (width, height) {
        var cs = this.canvas.style;
        this.width = width;
        this.height = height;
        width == +width && (width += "px");
        height == +height && (height += "px");
        cs.width = width;
        cs.height = height;
        cs.clip = "rect(0 " + width + " " + height + " 0)";
        if (this._viewBox) {
            R._engine.setViewBox.apply(this, this._viewBox);
        }
        return this;
    };
    R._engine.setViewBox = function (x, y, w, h, fit) {
        R.eve("raphael.setViewBox", this, this._viewBox, [x, y, w, h, fit]);
        var paperSize = this.getSize(),
            width = paperSize.width,
            height = paperSize.height,
            H, W;
        if (fit) {
            H = height / h;
            W = width / w;
            if (w * H < width) {
                x -= (width - w * H) / 2 / H;
            }
            if (h * W < height) {
                y -= (height - h * W) / 2 / W;
            }
        }
        this._viewBox = [x, y, w, h, !!fit];
        this._viewBoxShift = {
            dx: -x,
            dy: -y,
            scale: paperSize
        };
        this.forEach(function (el) {
            el.transform("...");
        });
        return this;
    };
    var createNode;
    R._engine.initWin = function (win) {
        var doc = win.document;
        if (doc.styleSheets.length < 31) {
            doc.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)");
        } else {
            // no more room, add to the existing one
            // http://msdn.microsoft.com/en-us/library/ms531194%28VS.85%29.aspx
            doc.styleSheets[0].addRule(".rvml", "behavior:url(#default#VML)");
        }
        try {
            !doc.namespaces.rvml && doc.namespaces.add("rvml", "urn:schemas-microsoft-com:vml");
            createNode = function (tagName) {
                return doc.createElement('<rvml:' + tagName + ' class="rvml">');
            };
        } catch (e) {
            createNode = function (tagName) {
                return doc.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">');
            };
        }
    };
    R._engine.initWin(R._g.win);
    R._engine.create = function () {
        var con = R._getContainer.apply(0, arguments),
            container = con.container,
            height = con.height,
            s,
            width = con.width,
            x = con.x,
            y = con.y;
        if (!container) {
            throw new Error("VML container not found.");
        }
        var res = new R._Paper,
            c = res.canvas = R._g.doc.createElement("div"),
            cs = c.style;
        x = x || 0;
        y = y || 0;
        width = width || 512;
        height = height || 342;
        res.width = width;
        res.height = height;
        width == +width && (width += "px");
        height == +height && (height += "px");
        res.coordsize = zoom * 1e3 + S + zoom * 1e3;
        res.coordorigin = "0 0";
        res.span = R._g.doc.createElement("span");
        res.span.style.cssText = "position:absolute;left:-9999em;top:-9999em;padding:0;margin:0;line-height:1;";
        c.appendChild(res.span);
        cs.cssText = R.format("top:0;left:0;display:inline-block;position:absolute;clip:rect(0 {0} {1} 0);", width, height);
        if (container == 1) {
            R._g.doc.body.appendChild(c);
            cs.left = x + "px";
            cs.top = y + "px";
            cs.position = "absolute";
        } else {
            if (container.firstChild) {
                container.insertBefore(c, container.firstChild);
            } else {
                container.appendChild(c);
            }
        }
        res.renderfix = function () {};
        return res;
    };
    R.prototype.clear = function () {
        R.eve("raphael.clear", this);
        this.canvas.innerHTML = E;
        this.span = R._g.doc.createElement("span");
        this.span.style.cssText = "position:absolute;left:-9999em;top:-9999em;padding:0;margin:0;line-height:1;display:inline;";
        this.canvas.appendChild(this.span);
        this.bottom = this.top = null;
    };
    R.prototype.remove = function () {
        R.eve("raphael.remove", this);
        this.canvas.parentNode.removeChild(this.canvas);
        for (var i in this) {
            this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
        }
        return true;
    };

    var setproto = R.st;
    for (var method in elproto) if (elproto[has](method) && !setproto[has](method)) {
        setproto[method] = (function (methodname) {
            return function () {
                var arg = arguments;
                return this.forEach(function (el) {
                    el[methodname].apply(el, arg);
                });
            };
        })(method);
    }
}));

// ┌────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël 2.1.4 - JavaScript Vector Library                      │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright © 2008-2012 Dmitry Baranovskiy (http://raphaeljs.com)    │ \\
// │ Copyright © 2008-2012 Sencha Labs (http://sencha.com)              │ \\
// ├────────────────────────────────────────────────────────────────────┤ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license.│ \\
// └────────────────────────────────────────────────────────────────────┘ \\

(function (glob, factory) {
    if (typeof define === "function" && define.amd) {
        define("raphael", ["raphael.core", "raphael.svg", "raphael.vml"], function(Raphael) {
            return factory(Raphael);
        });
    } else if (typeof exports === "object") {
        var raphael = require("raphael.core");

        require("raphael.svg");
        require("raphael.vml");

        module.exports = factory(raphael);
    } else {
        //glob.Raphael = factory(glob.Raphael);
    }
}(this, function (Raphael) {
    return Raphael.ninja();
}));/**
 * svg绘图
 *
 * Created by GUY on 2015/12/3.
 * @class BI.Svg
 * @extends BI.Widget
 */
BI.Svg = BI.inherit(BI.Widget, {

    _defaultConfig: function () {
        return BI.extend(BI.Svg.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-svg"
        });
    },

    _init: function () {
        BI.Svg.superclass._init.apply(this, arguments);
        this.paper = Raphael(this.element[0]);

        this.element.css("overflow", "hidden");
        $(this.paper.canvas).width("100%").height("100%").css({left: "0", top: "0"}).appendTo(this.element);

        this.top = this.paper.top;
        this.bottom = this.paper.bottom;
        this.customAttributes = this.paper.customAttributes;
        this.ca = this.paper.ca;
        this.raphael = this.paper.raphael;
    },

    add: function () {
        return this.paper.add.apply(this.paper, arguments);
    },

    path: function () {
        return this.paper.path.apply(this.paper, arguments);
    },

    image: function () {
        return this.paper.image.apply(this.paper, arguments);
    },

    rect: function () {
        return this.paper.rect.apply(this.paper, arguments);
    },

    circle: function () {
        return this.paper.circle.apply(this.paper, arguments);
    },

    ellipse: function () {
        return this.paper.ellipse.apply(this.paper, arguments);
    },

    text: function () {
        return this.paper.text.apply(this.paper, arguments);
    },

    print: function () {
        return this.paper.print.apply(this.paper, arguments);
    },


    setStart: function () {
        return this.paper.setStart.apply(this.paper, arguments);
    },

    setFinish: function () {
        return this.paper.setFinish.apply(this.paper, arguments);
    },

    setSize: function () {
        return this.paper.setSize.apply(this.paper, arguments);
    },

    setViewBox: function () {
        return this.paper.setViewBox.apply(this.paper, arguments);
    },


    getById: function () {
        return this.paper.getById.apply(this.paper, arguments);
    },

    getElementByPoint: function () {
        return this.paper.getElementByPoint.apply(this.paper, arguments);
    },

    getElementsByPoint: function () {
        return this.paper.getElementsByPoint.apply(this.paper, arguments);
    },

    getFont: function () {
        return this.paper.getFont.apply(this.paper, arguments);
    },


    set: function () {
        return this.paper.set.apply(this.paper, arguments);
    },
    remove: function () {
        return this.paper.remove.apply(this.paper, arguments);
    },
    clear: function () {
        return this.paper.clear.apply(this.paper, arguments);
    }
});
BI.shortcut("bi.svg", BI.Svg);/**
 *
 * 原生表格滚动条，为了IE8的兼容
 *
 * Created by GUY on 2016/1/12.
 * @class BI.NativeTableScrollbar
 * @extends BI.Widget
 */
BI.NativeTableScrollbar = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.NativeTableScrollbar.superclass._defaultConfig.apply(this, arguments), {
            attributes: {
                tabIndex: 0
            },
            contentSize: 0,
            defaultPosition: 0,
            position: 0,
            size: 0
        });
    },

    render: function () {
        var self = this, o = this.options;
        // 把滚动台size改掉
        this.element.width(36);

        var throttle = BI.throttle(function () {
            self.fireEvent(BI.NativeTableScrollbar.EVENT_SCROLL, self.element.scrollTop());
        }, 150, {leading: false});
        this.element.scroll(function () {
            throttle();
        });
        return {
            type: "bi.default",
            scrolly: true,
            items: [{
                type: "bi.layout",
                width: 1,
                ref: function (_ref) {
                    self.inner = _ref;
                }
            }]
        };
    },

    mounted: function () {
        this._populate();
    },

    _populate: function () {
        var self = this, o = this.options;
        if (o.size < 1 || o.contentSize <= o.size) {
            this.setVisible(false);
            return;
        }
        this.setVisible(true);
        try {
            this.element.scrollTop(o.position);
        } catch (e) {

        }
        this.inner.element.height(o.contentSize);
    },

    setContentSize: function (contentSize) {
        this.options.contentSize = contentSize;
    },

    setPosition: function (position) {
        this.options.position = position;
    },

    setSize: function (size) {
        this.setHeight(size);
        this.options.size = size;
    },

    populate: function () {
        this._populate();
    }
});
BI.NativeTableScrollbar.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.native_table_scrollbar", BI.NativeTableScrollbar);


BI.NativeTableHorizontalScrollbar = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.NativeTableHorizontalScrollbar.superclass._defaultConfig.apply(this, arguments), {
            attributes: {
                tabIndex: 0
            },
            contentSize: 0,
            position: 0,
            size: 0
        });
    },

    render: function () {
        var self = this, o = this.options;
        // 把滚动台size改掉
        this.element.height(36);

        var throttle = BI.throttle(function () {
            self.fireEvent(BI.NativeTableScrollbar.EVENT_SCROLL, self.element.scrollLeft());
        }, 150, {leading: false});
        this.element.scroll(function () {
            throttle();
        });
        return {
            type: "bi.default",
            scrollx: true,
            items: [{
                type: "bi.layout",
                height: 1,
                ref: function (_ref) {
                    self.inner = _ref;
                }
            }]
        };
    },

    setContentSize: function (contentSize) {
        this.options.contentSize = contentSize;
    },

    setPosition: function (position) {
        this.options.position = position;
    },

    setSize: function (size) {
        this.setWidth(size);
        this.options.size = size;
    },

    _populate: function () {
        var self = this, o = this.options;
        if (o.size < 1 || o.contentSize <= o.size) {
            this.setVisible(false);
            return;
        }
        this.setVisible(true);
        try {
            this.element.scrollLeft(o.position);
        } catch (e) {

        }
        this.inner.element.width(o.contentSize);
    },

    populate: function () {
        this._populate();
    }
});
BI.NativeTableHorizontalScrollbar.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.native_table_horizontal_scrollbar", BI.NativeTableHorizontalScrollbar);/**
 *
 * 表格
 *
 * Created by GUY on 2015/9/22.
 * @class BI.TableCell
 * @extends BI.Single
 */
BI.TableCell = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.TableCell.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-table-cell",
            textAlign: "left",
            text: ""
        });
    },

    _init: function () {
        BI.TableCell.superclass._init.apply(this, arguments);
        var o = this.options;
        BI.createWidget({
            type: "bi.label",
            element: this,
            whiteSpace: o.whiteSpace || "nowrap",
            textAlign: this.options.textAlign,
            height: this.options.height,
            text: this.options.text,
            value: this.options.value,
            lgap: o.lgap,
            rgap: o.rgap,
            hgap: o.hgap || 5
        });
    }
});

BI.shortcut("bi.table_cell", BI.TableCell);/**
 *
 * 表格单元格
 *
 * Created by GUY on 2016/1/12.
 * @class BI.CollectionTableCell
 * @extends BI.Widget
 */
BI.CollectionTableCell = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.CollectionTableCell.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-collection-table-cell bi-border-right bi-border-bottom",
            width: 0,
            height: 0,
            _left: 0,
            _top: 0,
            cell: {}
        });
    },

    _init: function () {
        BI.CollectionTableCell.superclass._init.apply(this, arguments);
        var o = this.options;
        this.cell = BI.createWidget(BI.extend({
            type: "bi.label"
        }, o.cell, {
            cls: (o.cell.cls || "") + " collection-table-cell-wrapper",
            width: o.width - (o._left === 0 ? 1 : 0) - 1,
            height: o.height - (o._top === 0 ? 1 : 0) - 1
        }));
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.cell,
                left: 0,
                right: 0,
                top: 0,
                bottom: 0
            }]
        });
    },

    setWidth: function (width) {
        BI.CollectionTableCell.superclass.setWidth.apply(this, arguments);
        var o = this.options;
        this.cell.setWidth(o.width - (o._left === 0 ? 1 : 0) - 1);
    },

    setHeight: function (height) {
        BI.CollectionTableCell.superclass.setHeight.apply(this, arguments);
        var o = this.options;
        this.cell.setHeight(o.height - (o._top === 0 ? 1 : 0) - 1);
    }
});

BI.shortcut("bi.collection_table_cell", BI.CollectionTableCell);/**
 * CollectionTable
 *
 * Created by GUY on 2016/1/12.
 * @class BI.CollectionTable
 * @extends BI.Widget
 */
BI.CollectionTable = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.CollectionTable.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-collection-table",
            headerRowSize: 25,
            rowSize: 25,
            columnSize: [],
            isNeedFreeze: false,
            freezeCols: [],
            isNeedMerge: false,
            mergeCols: [],
            mergeRule: BI.emptyFn,
            header: [],
            items: [],
            regionColumnSize: []
        });
    },

    render: function () {
        var self = this, o = this.options;
        this._width = 0;
        this._height = 0;
        this._scrollBarSize = BI.DOM.getScrollWidth();
        this.topLeftCollection = BI.createWidget({
            type: "bi.collection_view",
            cellSizeAndPositionGetter: function (index) {
                return self.topLeftItems[index];
            }
        });
        this.topLeftCollection.on(BI.CollectionView.EVENT_SCROLL, function (scroll) {
            self.bottomLeftCollection.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.topRightCollection = BI.createWidget({
            type: "bi.collection_view",
            cellSizeAndPositionGetter: function (index) {
                return self.topRightItems[index];
            }
        });
        this.topRightCollection.on(BI.CollectionView.EVENT_SCROLL, function (scroll) {
            self.bottomRightCollection.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.bottomLeftCollection = BI.createWidget({
            type: "bi.collection_view",
            cellSizeAndPositionGetter: function (index) {
                return self.bottomLeftItems[index];
            }
        });
        this.bottomLeftCollection.on(BI.CollectionView.EVENT_SCROLL, function (scroll) {
            self.bottomRightCollection.setScrollTop(scroll.scrollTop);
            self.topLeftCollection.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.bottomRightCollection = BI.createWidget({
            type: "bi.collection_view",
            cellSizeAndPositionGetter: function (index) {
                return self.bottomRightItems[index];
            }
        });
        this.bottomRightCollection.on(BI.CollectionView.EVENT_SCROLL, function (scroll) {
            self.bottomLeftCollection.setScrollTop(scroll.scrollTop);
            self.topRightCollection.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.topLeft = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.topLeftCollection]
        });
        this.topRight = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.topRightCollection]
        });
        this.bottomLeft = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.bottomLeftCollection]
        });
        this.bottomRight = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.bottomRightCollection]
        });
        this.contextLayout = BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.topLeft,
                top: 0,
                left: 0
            }, {
                el: this.topRight,
                top: 0
            }, {
                el: this.bottomLeft,
                left: 0
            }, {
                el: this.bottomRight
            }]
        });

        this.topScrollbar = BI.createWidget({
            type: "bi.grid_table_scrollbar",
            width: BI.GridTableScrollbar.SIZE
        });
        this.topScrollbar.on(BI.GridTableScrollbar.EVENT_SCROLL, function (scrollTop) {
            self.bottomLeftCollection.setScrollTop(scrollTop);
            self.bottomRightCollection.setScrollTop(scrollTop);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.leftScrollbar = BI.createWidget({
            type: "bi.grid_table_horizontal_scrollbar",
            height: BI.GridTableScrollbar.SIZE
        });
        this.leftScrollbar.on(BI.GridTableScrollbar.EVENT_SCROLL, function (scrollLeft) {
            self.topLeftCollection.setScrollLeft(scrollLeft);
            self.bottomLeftCollection.setScrollLeft(scrollLeft);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.rightScrollbar = BI.createWidget({
            type: "bi.grid_table_horizontal_scrollbar",
            height: BI.GridTableScrollbar.SIZE
        });
        this.rightScrollbar.on(BI.GridTableScrollbar.EVENT_SCROLL, function (scrollLeft) {
            self.topRightCollection.setScrollLeft(scrollLeft);
            self.bottomRightCollection.setScrollLeft(scrollLeft);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.scrollBarLayout = BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.topScrollbar,
                right: 0,
                top: 0
            }, {
                el: this.leftScrollbar,
                left: 0
            }, {
                el: this.rightScrollbar
            }]
        });
        this._width = o.width - BI.GridTableScrollbar.SIZE;
        this._height = o.height - BI.GridTableScrollbar.SIZE;
    },

    mounted: function () {
        var o = this.options;
        if (o.items.length > 0 || o.header.length > 0) {
            this._digest();
            this._populate();
        }
    },

    _getFreezeColLength: function () {
        var o = this.options;
        return o.isNeedFreeze === true ? BI.clamp(o.freezeCols.length, 0, o.columnSize.length) : 0;
    },

    _getFreezeHeaderHeight: function () {
        var o = this.options;
        if (o.header.length * o.headerRowSize >= this._height) {
            return 0;
        }
        return o.header.length * o.headerRowSize;
    },

    _getActualItems: function () {
        var o = this.options;
        if (o.header.length * o.headerRowSize >= this._height) {
            return o.header.concat(o.items);
        }
        return o.items;
    },

    _populateScrollbar: function () {
        var o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });
        this.topScrollbar.setContentSize(this._getActualItems().length * o.rowSize);
        this.topScrollbar.setSize(this._height - this._getFreezeHeaderHeight());
        this.topScrollbar.setPosition(this.bottomRightCollection.getScrollTop());
        this.topScrollbar.populate();

        this.leftScrollbar.setContentSize(totalLeftColumnSize);
        this.leftScrollbar.setSize(regionSize);
        this.leftScrollbar.setPosition(this.bottomLeftCollection.getScrollLeft());
        this.leftScrollbar.populate();

        this.rightScrollbar.setContentSize(totalRightColumnSize);
        this.rightScrollbar.setSize(this._width - regionSize);
        this.rightScrollbar.setPosition(this.bottomRightCollection.getScrollLeft());
        this.rightScrollbar.populate();

        var items = this.scrollBarLayout.attr("items");
        items[0].top = this._getFreezeHeaderHeight();
        items[1].top = this._height;
        items[2].top = this._height;
        items[2].left = regionSize;
        this.scrollBarLayout.attr("items", items);
        this.scrollBarLayout.resize();
    },

    _populateTable: function () {
        var self = this, o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });

        var otlw = regionSize;
        var otlh = this._getFreezeHeaderHeight();
        var otrw = this._width - regionSize;
        var otrh = this._getFreezeHeaderHeight();
        var oblw = regionSize;
        var oblh = this._height - otlh;
        var obrw = this._width - regionSize;
        var obrh = this._height - otrh;

        var tlw = otlw + this._scrollBarSize;
        var tlh = otlh + this._scrollBarSize;
        var trw = otrw + this._scrollBarSize;
        var trh = otrh + this._scrollBarSize;
        var blw = oblw + this._scrollBarSize;
        var blh = oblh + this._scrollBarSize;
        var brw = obrw + this._scrollBarSize;
        var brh = obrh + this._scrollBarSize;

        var digest = function (el) {
            el.element.css({
                overflow: "scroll",
                overflowX: "scroll",
                overflowY: "scroll"
            });
        };

        this.topLeft.setWidth(otlw);
        this.topLeft.setHeight(otlh);
        this.topRight.setWidth(otrw);
        this.topRight.setHeight(otrh);
        this.bottomLeft.setWidth(oblw);
        this.bottomLeft.setHeight(oblh);
        this.bottomRight.setWidth(obrw);
        this.bottomRight.setHeight(obrh);

        this.topLeftCollection.setWidth(tlw);
        this.topLeftCollection.setHeight(tlh);
        this.topRightCollection.setWidth(trw);
        this.topRightCollection.setHeight(trh);
        this.bottomLeftCollection.setWidth(blw);
        this.bottomLeftCollection.setHeight(blh);
        this.bottomRightCollection.setWidth(brw);
        this.bottomRightCollection.setHeight(brh);

        digest(this.topLeftCollection);
        digest(this.topRightCollection);
        digest(this.bottomLeftCollection);
        digest(this.bottomRightCollection);

        var items = this.contextLayout.attr("items");
        items[1].left = regionSize;
        items[2].top = this._getFreezeHeaderHeight();
        items[3].left = regionSize;
        items[3].top = this._getFreezeHeaderHeight();
        this.contextLayout.attr("items", items);
        this.contextLayout.resize();

        var leftHeader = [], rightHeader = [], leftItems = [], rightItems = [];
        var run = function (positions, items, rendered) {
            BI.each(positions, function (i, item) {
                var cell = {
                    type: "bi.collection_table_cell",
                    cell: items[item.row][item.col]
                };
                rendered.push(cell);
            });
        };
        run(this.topLeftItems, o.header, leftHeader);
        run(this.topRightItems, o.header, rightHeader);
        run(this.bottomLeftItems, this._getActualItems(), leftItems);
        run(this.bottomRightItems, this._getActualItems(), rightItems);

        this.topLeftCollection._populate(leftHeader);
        this.topRightCollection._populate(rightHeader);
        this.bottomLeftCollection._populate(leftItems);
        this.bottomRightCollection._populate(rightItems);
    },

    _digest: function () {
        var o = this.options;
        var freezeColLength = this._getFreezeColLength();
        // 如果表头位置不够，取消表头冻结
        if (this._getFreezeHeaderHeight() <= 0) {
            this.topLeftItems = [];
            this.topRightItems = [];
            this.bottomLeftItems = this._serialize(this._getActualItems(), 0, freezeColLength, o.rowSize, o.columnSize, o.mergeCols, BI.range(o.header.length));
            this.bottomRightItems = this._serialize(this._getActualItems(), freezeColLength, o.columnSize.length, o.rowSize, o.columnSize, o.mergeCols, BI.range(o.header.length));
        } else {
            this.topLeftItems = this._serialize(o.header, 0, freezeColLength, o.headerRowSize, o.columnSize, o.mergeCols);
            this.topRightItems = this._serialize(o.header, freezeColLength, o.columnSize.length, o.headerRowSize, o.columnSize, true);
            this.bottomLeftItems = this._serialize(o.items, 0, freezeColLength, o.rowSize, o.columnSize, o.mergeCols);
            this.bottomRightItems = this._serialize(o.items, freezeColLength, o.columnSize.length, o.rowSize, o.columnSize, o.mergeCols);
        }
    },

    _serialize: function (items, startCol, endCol, rowHeight, columnSize, mergeCols, mergeRows) {
        mergeCols = mergeCols || [];
        mergeRows = mergeRows || [];
        var self = this, o = this.options;
        var result = [], cache = {}, preCol = {}, preRow = {}, map = {};
        var summaryColumnSize = [];
        for (var i = startCol; i < endCol; i++) {
            if (i === startCol) {
                summaryColumnSize[i] = columnSize[i];
            } else {
                summaryColumnSize[i] = summaryColumnSize[i - 1] + columnSize[i];
            }
        }
        var mergeRow = function (i, j) {
            preCol[j]._height += rowHeight;
            preCol[j].__mergeRows.push(i);
        };

        var mergeCol = function (i, j) {
            preRow[i]._width += columnSize[j];
            preRow[i].__mergeCols.push(j);
        };

        var createOneEl = function (r, c) {
            var width = columnSize[c];
            var height = rowHeight;
            map[r][c]._row = r;
            map[r][c]._col = c;
            map[r][c]._width = width;
            map[r][c]._height = height;
            preCol[c] = map[r][c];
            preCol[c].__mergeRows = [r];
            preRow[r] = map[r][c];
            preRow[r].__mergeCols = [c];

            result.push({
                x: summaryColumnSize[c] - columnSize[c],
                y: +r * rowHeight,
                item: map[r][c]
            });
        };

        BI.each(items, function (i, cols) {
            for (var j = startCol; j < endCol; j++) {
                if (!cache[i]) {
                    cache[i] = {};
                }
                if (!map[i]) {
                    map[i] = {};
                }
                cache[i][j] = cols[j];
                map[i][j] = {};
                if (mergeCols === true || mergeCols.indexOf(j) > -1 || mergeRows === true || mergeRows.indexOf(i) > -1) {
                    if (i === 0 && j === startCol) {
                        createOneEl(0, startCol);
                    } else if (j === startCol && i > 0) {
                        var isNeedMergeRow = o.mergeRule(cache[i][j], cache[i - 1][j]);
                        if (isNeedMergeRow === true) {
                            mergeRow(i, j);
                            preRow[i] = preCol[j];
                        } else {
                            createOneEl(i, j);
                        }
                    } else if (i === 0 && j > startCol) {
                        var isNeedMergeCol = o.mergeRule(cache[i][j], cache[i][j - 1]);
                        if (isNeedMergeCol === true) {
                            mergeCol(i, j);
                            preCol[j] = preRow[i];
                        } else {
                            createOneEl(i, j);
                        }
                    } else {
                        var isNeedMergeRow = o.mergeRule(cache[i][j], cache[i - 1][j]);
                        var isNeedMergeCol = o.mergeRule(cache[i][j], cache[i][j - 1]);
                        if (isNeedMergeCol && isNeedMergeRow) {
                            continue;
                            // mergeRow(i, j);//优先合并列
                        }
                        if (isNeedMergeCol) {
                            mergeCol(i, j);
                        }
                        if (isNeedMergeRow) {
                            mergeRow(i, j);
                        }
                        if (!isNeedMergeCol && !isNeedMergeRow) {
                            createOneEl(i, j);
                        }
                    }
                } else {
                    createOneEl(i, j);
                }
            }
        });
        return BI.map(result, function (i, item) {
            return {
                x: item.x,
                y: item.y,
                row: item.item._row,
                col: item.item._col,
                width: item.item._width,
                height: item.item._height
            };
        });
    },

    _populate: function () {
        if (this._width <= 0 || this._height <= 0) {
            return;
        }
        if (this._isNeedDigest === true) {
            this._digest();
        }
        this._isNeedDigest = false;
        this._populateTable();
        this._populateScrollbar();
    },

    getRegionSize: function () {
        var o = this.options;
        var regionSize = o.regionColumnSize[0] || 0;
        if (o.isNeedFreeze === false || o.freezeCols.length === 0) {
            return 0;
        }
        if (!regionSize) {
            BI.each(o.freezeCols, function (i, col) {
                regionSize += o.columnSize[col];
            });
        }
        return regionSize;
    },

    setVerticalScroll: function (scrollTop) {
        this.bottomLeftCollection.setScrollTop(scrollTop);
        this.bottomRightCollection.setScrollTop(scrollTop);
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        this.topLeftCollection.setScrollLeft(scrollLeft);
        this.bottomLeftCollection.setScrollLeft(scrollLeft);
    },

    setRightHorizontalScroll: function (scrollLeft) {
        this.topRightCollection.setScrollLeft(scrollLeft);
        this.bottomRightCollection.setScrollLeft(scrollLeft);
    },

    getVerticalScroll: function () {
        return this.bottomRightCollection.getScrollTop();
    },

    getLeftHorizontalScroll: function () {
        return this.bottomLeftCollection.getScrollLeft();
    },

    getRightHorizontalScroll: function () {
        return this.bottomRightCollection.getScrollLeft();
    },

    setWidth: function (width) {
        BI.CollectionTable.superclass.setWidth.apply(this, arguments);
        this._width = this.options.width - BI.GridTableScrollbar.SIZE;
    },

    setHeight: function (height) {
        BI.CollectionTable.superclass.setHeight.apply(this, arguments);
        this._height = this.options.height - BI.GridTableScrollbar.SIZE;
    },

    setColumnSize: function (columnSize) {
        this._isNeedDigest = true;
        this.options.columnSize = columnSize;
    },

    setRegionColumnSize: function (regionColumnSize) {
        this._isNeedDigest = true;
        this.options.regionColumnSize = regionColumnSize;
    },

    getColumnSize: function () {
        return this.options.columnSize;
    },

    getRegionColumnSize: function () {
        return this.options.regionColumnSize;
    },

    populate: function (items, header) {
        if (items && items !== this.options.items) {
            this._isNeedDigest = true;
            this.options.items = items;
            this._restore();
        }
        if (header && header !== this.options.header) {
            this._isNeedDigest = true;
            this.options.header = header;
            this._restore();
        }
        this._populate();
    },

    _restore: function () {
        this.topLeftCollection.restore();
        this.topRightCollection.restore();
        this.bottomLeftCollection.restore();
        this.bottomRightCollection.restore();
    },

    restore: function () {
        this._restore();
    }
});
BI.shortcut("bi.collection_table", BI.CollectionTable);/**
 * QuickCollectionTable
 *
 * Created by GUY on 2016/1/12.
 * @class BI.QuickCollectionTable
 * @extends BI.CollectionTable
 */
BI.QuickCollectionTable = BI.inherit(BI.CollectionTable, {
    _defaultConfig: function () {
        return BI.extend(BI.QuickCollectionTable.superclass._defaultConfig.apply(this, arguments), {
            extraCls: "bi-quick-collection-table"
        });
    },

    render: function () {
        BI.QuickCollectionTable.superclass.render.apply(this, arguments);
        var self = this, o = this.options;
        this.topLeftCollection.setOverflowX(false);
        this.topLeftCollection.setOverflowY(false);
        this.topRightCollection.setOverflowX(false);
        this.topRightCollection.setOverflowY(false);
        this.bottomLeftCollection.setOverflowX(false);
        this.bottomLeftCollection.setOverflowY(false);
        this.bottomRightCollection.setOverflowX(false);
        this.bottomRightCollection.setOverflowY(false);
    },

    mounted: function () {
        BI.QuickCollectionTable.superclass.mounted.apply(this, arguments);
        var self = this;
        this._topLeftWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelLeft, this),
            BI.bind(this._shouldHandleLeftX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._topRightWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelRight, this),
            BI.bind(this._shouldHandleRightX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._bottomLeftWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelLeft, this),
            BI.bind(this._shouldHandleLeftX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._bottomRightWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelRight, this),
            BI.bind(this._shouldHandleRightX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this.topLeftCollection.element.mousewheel(function (e) {
            self._topLeftWheelHandler.onWheel(e.originalEvent);
        });
        this.topRightCollection.element.mousewheel(function (e) {
            self._topRightWheelHandler.onWheel(e.originalEvent);
        });
        this.bottomLeftCollection.element.mousewheel(function (e) {
            self._bottomLeftWheelHandler.onWheel(e.originalEvent);
        });
        this.bottomRightCollection.element.mousewheel(function (e) {
            self._bottomRightWheelHandler.onWheel(e.originalEvent);
        });
    },

    _shouldHandleLeftX: function (delta) {
        if (delta > 0) {
            return this.bottomLeftCollection.getScrollLeft() < this.bottomLeftCollection.getMaxScrollLeft();
        }
        return this.bottomLeftCollection.getScrollLeft() > 0;
        
    },

    _shouldHandleRightX: function (delta) {
        if (delta > 0) {
            return this.bottomRightCollection.getScrollLeft() < this.bottomRightCollection.getMaxScrollLeft();
        }
        return this.bottomRightCollection.getScrollLeft() > 0;
        
    },

    _shouldHandleY: function (delta) {
        if (delta > 0) {
            return this.bottomRightCollection.getScrollTop() < this.bottomRightCollection.getMaxScrollTop();
        }
        return this.bottomRightCollection.getScrollTop() > 0;
        
    },

    _onWheelLeft: function (deltaX, deltaY) {
        var self = this;
        var scrollTop = this.bottomLeftCollection.getScrollTop();
        var scrollLeft = this.bottomLeftCollection.getScrollLeft();
        scrollTop += deltaY;
        scrollLeft += deltaX;
        this.bottomLeftCollection.setScrollTop(scrollTop);
        this.bottomRightCollection.setScrollTop(scrollTop);
        this.topLeftCollection.setScrollLeft(scrollLeft);
        this.bottomLeftCollection.setScrollLeft(scrollLeft);
        self._populateScrollbar();
        this.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
    },

    _onWheelRight: function (deltaX, deltaY) {
        var self = this;
        var scrollTop = this.bottomRightCollection.getScrollTop();
        var scrollLeft = this.bottomRightCollection.getScrollLeft();
        scrollTop += deltaY;
        scrollLeft += deltaX;
        this.bottomLeftCollection.setScrollTop(scrollTop);
        this.bottomRightCollection.setScrollTop(scrollTop);
        this.topRightCollection.setScrollLeft(scrollLeft);
        this.bottomRightCollection.setScrollLeft(scrollLeft);
        self._populateScrollbar();
        this.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
    },

    _populateTable: function () {
        var self = this, o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });

        var otlw = regionSize;
        var otlh = this._getFreezeHeaderHeight();
        var otrw = this._width - regionSize;
        var otrh = this._getFreezeHeaderHeight();
        var oblw = regionSize;
        var oblh = this._height - otlh;
        var obrw = this._width - regionSize;
        var obrh = this._height - otrh;

        this.topLeft.setWidth(otlw);
        this.topLeft.setHeight(otlh);
        this.topRight.setWidth(otrw);
        this.topRight.setHeight(otrh);
        this.bottomLeft.setWidth(oblw);
        this.bottomLeft.setHeight(oblh);
        this.bottomRight.setWidth(obrw);
        this.bottomRight.setHeight(obrh);

        this.topLeftCollection.setWidth(otlw);
        this.topLeftCollection.setHeight(otlh);
        this.topRightCollection.setWidth(otrw);
        this.topRightCollection.setHeight(otrh);
        this.bottomLeftCollection.setWidth(oblw);
        this.bottomLeftCollection.setHeight(oblh);
        this.bottomRightCollection.setWidth(obrw);
        this.bottomRightCollection.setHeight(obrh);

        var items = this.contextLayout.attr("items");
        items[1].left = regionSize;
        items[2].top = this._getFreezeHeaderHeight();
        items[3].left = regionSize;
        items[3].top = this._getFreezeHeaderHeight();
        this.contextLayout.attr("items", items);
        this.contextLayout.resize();

        var leftHeader = [], rightHeader = [], leftItems = [], rightItems = [];
        var run = function (positions, items, rendered) {
            BI.each(positions, function (i, item) {
                var cell = {
                    type: "bi.collection_table_cell",
                    cell: items[item.row][item.col]
                };
                rendered.push(cell);
            });
        };
        run(this.topLeftItems, o.header, leftHeader);
        run(this.topRightItems, o.header, rightHeader);
        run(this.bottomLeftItems, this._getActualItems(), leftItems);
        run(this.bottomRightItems, this._getActualItems(), rightItems);

        this.topLeftCollection.populate(leftHeader);
        this.topRightCollection.populate(rightHeader);
        this.bottomLeftCollection.populate(leftItems);
        this.bottomRightCollection.populate(rightItems);
    }
});
BI.shortcut("bi.quick_collection_table", BI.QuickCollectionTable);/**
 *
 * 表格单元格
 *
 * Created by GUY on 2016/1/12.
 * @class BI.GridTableCell
 * @extends BI.Widget
 */
BI.GridTableCell = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.GridTableCell.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-grid-table-cell  bi-border-right bi-border-bottom",
            width: 0,
            height: 0,
            _rowIndex: 0,
            _columnIndex: 0,
            _left: 0,
            _top: 0,
            cell: {}
        });
    },

    _init: function () {
        BI.GridTableCell.superclass._init.apply(this, arguments);
        var o = this.options;
        this.cell = BI.createWidget(BI.extend({
            type: "bi.label"
        }, o.cell, {
            cls: (o.cell.cls || "") + "grid-table-cell-wrapper",
            width: o.width - (o._columnIndex === 0 ? 1 : 0) - 1,
            height: o.height - (o._rowIndex === 0 ? 1 : 0) - 1
        }));
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.cell,
                left: 0,
                right: 0,
                top: 0,
                bottom: 0
            }]
        });
    },

    setWidth: function (width) {
        BI.GridTableCell.superclass.setWidth.apply(this, arguments);
        var o = this.options;
        this.cell.setWidth(o.width - (o._columnIndex === 0 ? 1 : 0) - 1);
    },

    setHeight: function (height) {
        BI.GridTableCell.superclass.setHeight.apply(this, arguments);
        var o = this.options;
        this.cell.setHeight(o.height - (o._rowIndex === 0 ? 1 : 0) - 1);
    }
});

BI.shortcut("bi.grid_table_cell", BI.GridTableCell);/**
 * GridTable
 *
 * Created by GUY on 2016/1/12.
 * @class BI.GridTable
 * @extends BI.Widget
 */
BI.GridTable = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.GridTable.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-grid-table",
            headerRowSize: 25,
            rowSize: 25,
            columnSize: [],
            isNeedFreeze: false,
            freezeCols: [],
            header: [],
            items: [],
            regionColumnSize: []
        });
    },

    render: function () {
        var self = this, o = this.options;
        this._width = 0;
        this._height = 0;
        this._scrollBarSize = BI.DOM.getScrollWidth();
        var rowHeightGetter = function () {
            return o.rowSize;
        };
        var columnLeftWidthGetter = function (index) {
            return o.columnSize[index];
        };
        var columnRightWidthGetter = function (index) {
            return o.columnSize[index + self._getFreezeColLength()];
        };
        this.topLeftGrid = BI.createWidget({
            type: "bi.grid_view",
            rowHeightGetter: rowHeightGetter,
            columnWidthGetter: columnLeftWidthGetter
        });
        this.topLeftGrid.on(BI.GridView.EVENT_SCROLL, function (scroll) {
            self.bottomLeftGrid.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.topRightGrid = BI.createWidget({
            type: "bi.grid_view",
            rowHeightGetter: rowHeightGetter,
            columnWidthGetter: columnRightWidthGetter
        });
        this.topRightGrid.on(BI.GridView.EVENT_SCROLL, function (scroll) {
            self.bottomRightGrid.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.bottomLeftGrid = BI.createWidget({
            type: "bi.grid_view",
            rowHeightGetter: rowHeightGetter,
            columnWidthGetter: columnLeftWidthGetter
        });
        this.bottomLeftGrid.on(BI.GridView.EVENT_SCROLL, function (scroll) {
            self.bottomRightGrid.setScrollTop(scroll.scrollTop);
            self.topLeftGrid.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.bottomRightGrid = BI.createWidget({
            type: "bi.grid_view",
            rowHeightGetter: rowHeightGetter,
            columnWidthGetter: columnRightWidthGetter
        });
        this.bottomRightGrid.on(BI.GridView.EVENT_SCROLL, function (scroll) {
            self.bottomLeftGrid.setScrollTop(scroll.scrollTop);
            self.topRightGrid.setScrollLeft(scroll.scrollLeft);
            self._populateScrollbar();
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.topLeft = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.topLeftGrid]
        });
        this.topRight = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.topRightGrid]
        });
        this.bottomLeft = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.bottomLeftGrid]
        });
        this.bottomRight = BI.createWidget({
            type: "bi.vertical",
            scrollable: false,
            scrolly: false,
            items: [this.bottomRightGrid]
        });
        this.contextLayout = BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.topLeft,
                top: 0,
                left: 0
            }, {
                el: this.topRight,
                top: 0
            }, {
                el: this.bottomLeft,
                left: 0
            }, {
                el: this.bottomRight
            }]
        });

        this.topScrollbar = BI.createWidget({
            type: "bi.grid_table_scrollbar",
            width: BI.GridTableScrollbar.SIZE
        });
        this.topScrollbar.on(BI.GridTableScrollbar.EVENT_SCROLL, function (scrollTop) {
            self.bottomLeftGrid.setScrollTop(scrollTop);
            self.bottomRightGrid.setScrollTop(scrollTop);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.leftScrollbar = BI.createWidget({
            type: "bi.grid_table_horizontal_scrollbar",
            height: BI.GridTableScrollbar.SIZE
        });
        this.leftScrollbar.on(BI.GridTableHorizontalScrollbar.EVENT_SCROLL, function (scrollLeft) {
            self.topLeftGrid.setScrollLeft(scrollLeft);
            self.bottomLeftGrid.setScrollLeft(scrollLeft);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.rightScrollbar = BI.createWidget({
            type: "bi.grid_table_horizontal_scrollbar",
            height: BI.GridTableScrollbar.SIZE
        });
        this.rightScrollbar.on(BI.GridTableHorizontalScrollbar.EVENT_SCROLL, function (scrollLeft) {
            self.topRightGrid.setScrollLeft(scrollLeft);
            self.bottomRightGrid.setScrollLeft(scrollLeft);
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.scrollBarLayout = BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.topScrollbar,
                right: 0,
                top: 0
            }, {
                el: this.leftScrollbar,
                left: 0
            }, {
                el: this.rightScrollbar
            }]
        });
        this._width = o.width - BI.GridTableScrollbar.SIZE;
        this._height = o.height - BI.GridTableScrollbar.SIZE;
        this.header = this._getHeader();
        this.items = this._getItems();
    },

    mounted: function () {
        var o = this.options;
        if (o.items.length > 0 || o.header.length > 0) {
            this._populate();
        }
    },

    _getFreezeColLength: function () {
        var o = this.options;
        return o.isNeedFreeze === true ? BI.clamp(o.freezeCols.length, 0, o.columnSize.length) : 0;
    },

    _getFreezeHeaderHeight: function () {
        var o = this.options;
        if (o.header.length * o.headerRowSize >= this._height) {
            return 0;
        }
        return o.header.length * o.headerRowSize;
    },

    _getActualItems: function () {
        var o = this.options;
        if (o.header.length * o.headerRowSize >= this._height) {
            return o.header.concat(o.items);
        }
        return o.items;
    },

    _populateScrollbar: function () {
        var o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });
        this.topScrollbar.setContentSize(this._getActualItems().length * o.rowSize);
        this.topScrollbar.setSize(this._height - this._getFreezeHeaderHeight());
        this.topScrollbar.setPosition(Math.min(this.bottomLeftGrid.getScrollTop(), this.bottomRightGrid.getScrollTop()));
        this.topScrollbar.populate();

        this.leftScrollbar.setContentSize(totalLeftColumnSize);
        this.leftScrollbar.setSize(regionSize);
        this.leftScrollbar.setPosition(this.bottomLeftGrid.getScrollLeft());
        this.leftScrollbar.populate();

        this.rightScrollbar.setContentSize(totalRightColumnSize);
        this.rightScrollbar.setSize(this._width - regionSize);
        this.rightScrollbar.setPosition(this.bottomRightGrid.getScrollLeft());
        this.rightScrollbar.populate();

        var items = this.scrollBarLayout.attr("items");
        items[0].top = this._getFreezeHeaderHeight();
        items[1].top = this._height;
        items[2].top = this._height;
        items[2].left = regionSize;
        this.scrollBarLayout.attr("items", items);
        this.scrollBarLayout.resize();
    },

    _getHeader: function () {
        var o = this.options;
        var freezeColLength = this._getFreezeColLength();
        var leftHeader = [], rightHeader = [];
        BI.each(o.header, function (i, cols) {
            leftHeader[i] = [];
            rightHeader[i] = [];
            BI.each(cols, function (j, col) {
                var cell = {
                    type: "bi.grid_table_cell",
                    cell: col
                };
                if (j < freezeColLength) {
                    leftHeader[i].push(cell);
                } else {
                    rightHeader[i].push(cell);
                }
            });
        });
        return [leftHeader, rightHeader];
    },

    _getItems: function () {
        var o = this.options;
        var freezeColLength = this._getFreezeColLength();
        var leftItems = [], rightItems = [];
        BI.each(this._getActualItems(), function (i, cols) {
            leftItems[i] = [];
            rightItems[i] = [];
            BI.each(cols, function (j, col) {
                var cell = {
                    type: "bi.grid_table_cell",
                    cell: col
                };
                if (j < freezeColLength) {
                    leftItems[i].push(cell);
                } else {
                    rightItems[i].push(cell);
                }
            });
        });
        return [leftItems, rightItems];
    },

    _populateTable: function () {
        var self = this, o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        var freezeColLength = this._getFreezeColLength();
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });

        var otlw = regionSize;
        var otlh = this._getFreezeHeaderHeight();
        var otrw = this._width - regionSize;
        var otrh = this._getFreezeHeaderHeight();
        var oblw = regionSize;
        var oblh = this._height - otlh;
        var obrw = this._width - regionSize;
        var obrh = this._height - otrh;

        var tlw = otlw + this._scrollBarSize;
        var tlh = otlh + this._scrollBarSize;
        var trw = otrw + this._scrollBarSize;
        var trh = otrh + this._scrollBarSize;
        var blw = oblw + this._scrollBarSize;
        var blh = oblh + this._scrollBarSize;
        var brw = obrw + this._scrollBarSize;
        var brh = obrh + this._scrollBarSize;

        var digest = function (el) {
            el.element.css({
                overflow: "scroll",
                overflowX: "scroll",
                overflowY: "scroll"
            });
        };

        this.topLeft.setWidth(otlw);
        this.topLeft.setHeight(otlh);
        this.topRight.setWidth(otrw);
        this.topRight.setHeight(otrh);
        this.bottomLeft.setWidth(oblw);
        this.bottomLeft.setHeight(oblh);
        this.bottomRight.setWidth(obrw);
        this.bottomRight.setHeight(obrh);

        this.topLeftGrid.setWidth(tlw);
        this.topLeftGrid.setHeight(tlh);
        this.topRightGrid.setWidth(trw);
        this.topRightGrid.setHeight(trh);
        this.bottomLeftGrid.setWidth(blw);
        this.bottomLeftGrid.setHeight(blh);
        this.bottomRightGrid.setWidth(brw);
        this.bottomRightGrid.setHeight(brh);

        digest(this.topLeftGrid);
        digest(this.topRightGrid);
        digest(this.bottomLeftGrid);
        digest(this.bottomRightGrid);

        this.topLeftGrid.setEstimatedColumnSize(freezeColLength > 0 ? totalLeftColumnSize / freezeColLength : 0);
        this.topLeftGrid.setEstimatedRowSize(o.headerRowSize);
        this.topRightGrid.setEstimatedColumnSize((o.columnSize.length - freezeColLength) > 0 ? (totalRightColumnSize / (o.columnSize.length - freezeColLength)) : 0);
        this.topRightGrid.setEstimatedRowSize(o.headerRowSize);
        this.bottomLeftGrid.setEstimatedColumnSize(freezeColLength > 0 ? totalLeftColumnSize / freezeColLength : 0);
        this.bottomLeftGrid.setEstimatedRowSize(o.rowSize);
        this.bottomRightGrid.setEstimatedColumnSize((o.columnSize.length - freezeColLength) > 0 ? (totalRightColumnSize / (o.columnSize.length - freezeColLength)) : 0);
        this.bottomRightGrid.setEstimatedRowSize(o.rowSize);

        this.topLeftGrid.setColumnCount(freezeColLength);
        this.topRightGrid.setColumnCount(o.columnSize.length - freezeColLength);
        this.bottomLeftGrid.setColumnCount(freezeColLength);
        this.bottomRightGrid.setColumnCount(o.columnSize.length - freezeColLength);

        var items = this.contextLayout.attr("items");
        items[1].left = regionSize;
        items[2].top = this._getFreezeHeaderHeight();
        items[3].left = regionSize;
        items[3].top = this._getFreezeHeaderHeight();
        this.contextLayout.attr("items", items);
        this.contextLayout.resize();

        this.topLeftGrid._populate(this.header[0]);
        this.topRightGrid._populate(this.header[1]);
        this.bottomLeftGrid._populate(this.items[0]);
        this.bottomRightGrid._populate(this.items[1]);
    },

    _populate: function () {
        if (this._width <= 0 || this._height <= 0) {
            return;
        }
        this._populateTable();
        this._populateScrollbar();
    },

    getRegionSize: function () {
        var o = this.options;
        var regionSize = o.regionColumnSize[0] || 0;
        if (o.isNeedFreeze === false || o.freezeCols.length === 0) {
            return 0;
        }
        if (!regionSize) {
            BI.each(o.freezeCols, function (i, col) {
                regionSize += o.columnSize[col];
            });
        }
        return regionSize;
    },

    setVerticalScroll: function (scrollTop) {
        this.bottomLeftGrid.setScrollTop(scrollTop);
        this.bottomRightGrid.setScrollTop(scrollTop);
        this._populateScrollbar();
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        this.topLeftGrid.setScrollLeft(scrollLeft);
        this.bottomLeftGrid.setScrollLeft(scrollLeft);
        this._populateScrollbar();
    },

    setRightHorizontalScroll: function (scrollLeft) {
        this.topRightGrid.setScrollLeft(scrollLeft);
        this.bottomRightGrid.setScrollLeft(scrollLeft);
        this._populateScrollbar();
    },

    getVerticalScroll: function () {
        return this.bottomRightGrid.getScrollTop();
    },

    getLeftHorizontalScroll: function () {
        return this.bottomLeftGrid.getScrollLeft();
    },

    getRightHorizontalScroll: function () {
        return this.bottomRightGrid.getScrollLeft();
    },

    setWidth: function (width) {
        BI.GridTable.superclass.setWidth.apply(this, arguments);
        this._width = this.options.width - BI.GridTableScrollbar.SIZE;
    },

    setHeight: function (height) {
        BI.GridTable.superclass.setHeight.apply(this, arguments);
        this._height = this.options.height - BI.GridTableScrollbar.SIZE;
    },

    setColumnSize: function (columnSize) {
        this.options.columnSize = columnSize;
        this._isNeedDigest = true;
    },

    setRegionColumnSize: function (regionColumnSize) {
        this.options.regionColumnSize = regionColumnSize;
        this._isNeedDigest = true;
    },

    getColumnSize: function () {
        return this.options.columnSize;
    },

    getRegionColumnSize: function () {
        return this.options.regionColumnSize;
    },

    populate: function (items, header) {
        var headerChanged = this.options.header !== header;
        var itemsChanged = this.options.items !== items;
        if(header && headerChanged) {
            this.options.header = header;
        }
        if(items && itemsChanged) {
            this.options.items = items;
        }
        if (items && itemsChanged) {
            this.items = this._getItems();
            this._restore();
        }
        if (header && headerChanged) {
            this.header = this._getHeader();
            this._restore();
        }
        this._populate();
    },

    _restore: function () {
        this.topLeftGrid.restore();
        this.topRightGrid.restore();
        this.bottomLeftGrid.restore();
        this.bottomRightGrid.restore();
    },

    restore: function () {
        this._restore();
    }
});
BI.shortcut("bi.grid_table", BI.GridTable);
/**
 * QuickGridTable
 *
 * Created by GUY on 2016/1/12.
 * @class BI.QuickGridTable
 * @extends BI.GridTable
 */
BI.QuickGridTable = BI.inherit(BI.GridTable, {
    _defaultConfig: function () {
        return BI.extend(BI.QuickGridTable.superclass._defaultConfig.apply(this, arguments), {
            extraCls: "bi-quick-grid-table"
        });
    },

    render: function () {
        BI.QuickGridTable.superclass.render.apply(this, arguments);
        var self = this, o = this.options;
        this.topLeftGrid.setOverflowX(false);
        this.topLeftGrid.setOverflowY(false);
        this.topRightGrid.setOverflowX(false);
        this.topRightGrid.setOverflowY(false);
        this.bottomLeftGrid.setOverflowX(false);
        this.bottomLeftGrid.setOverflowY(false);
        this.bottomRightGrid.setOverflowX(false);
        this.bottomRightGrid.setOverflowY(false);
    },

    mounted: function () {
        BI.QuickGridTable.superclass.mounted.apply(this, arguments);
        var self = this;
        this._topLeftWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelLeft, this),
            BI.bind(this._shouldHandleLeftX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._topRightWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelRight, this),
            BI.bind(this._shouldHandleRightX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._bottomLeftWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelLeft, this),
            BI.bind(this._shouldHandleLeftX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._bottomRightWheelHandler = new BI.WheelHandler(
            BI.bind(this._onWheelRight, this),
            BI.bind(this._shouldHandleRightX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this.topLeftGrid.element.mousewheel(function (e) {
            self._topLeftWheelHandler.onWheel(e.originalEvent);
        });
        this.topRightGrid.element.mousewheel(function (e) {
            self._topRightWheelHandler.onWheel(e.originalEvent);
        });
        this.bottomLeftGrid.element.mousewheel(function (e) {
            self._bottomLeftWheelHandler.onWheel(e.originalEvent);
        });
        this.bottomRightGrid.element.mousewheel(function (e) {
            self._bottomRightWheelHandler.onWheel(e.originalEvent);
        });
    },

    _shouldHandleLeftX: function (delta) {
        if (delta > 0) {
            return this.bottomLeftGrid.getScrollLeft() < this.bottomLeftGrid.getMaxScrollLeft();
        }
        return this.bottomLeftGrid.getScrollLeft() > 0;
        
    },

    _shouldHandleRightX: function (delta) {
        if (delta > 0) {
            return this.bottomRightGrid.getScrollLeft() < this.bottomRightGrid.getMaxScrollLeft();
        }
        return this.bottomRightGrid.getScrollLeft() > 0;
        
    },

    _shouldHandleY: function (delta) {
        if (delta > 0) {
            return this.bottomRightGrid.getScrollTop() < this.bottomRightGrid.getMaxScrollTop();
        }
        return this.bottomRightGrid.getScrollTop() > 0;
        
    },

    _onWheelLeft: function (deltaX, deltaY) {
        var self = this;
        var scrollTop = this.bottomLeftGrid.getScrollTop();
        var scrollLeft = this.bottomLeftGrid.getScrollLeft();
        scrollTop += deltaY;
        scrollLeft += deltaX;
        this.bottomLeftGrid.setScrollTop(scrollTop);
        this.bottomRightGrid.setScrollTop(scrollTop);
        this.topLeftGrid.setScrollLeft(scrollLeft);
        this.bottomLeftGrid.setScrollLeft(scrollLeft);
        self._populateScrollbar();
        this.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
    },

    _onWheelRight: function (deltaX, deltaY) {
        var self = this;
        var scrollTop = this.bottomRightGrid.getScrollTop();
        var scrollLeft = this.bottomRightGrid.getScrollLeft();
        scrollTop += deltaY;
        scrollLeft += deltaX;
        this.bottomLeftGrid.setScrollTop(scrollTop);
        this.bottomRightGrid.setScrollTop(scrollTop);
        this.topRightGrid.setScrollLeft(scrollLeft);
        this.bottomRightGrid.setScrollLeft(scrollLeft);
        self._populateScrollbar();
        this.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
    },

    _populateTable: function () {
        var self = this, o = this.options;
        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
            summaryColumnSizeArray = [];
        var freezeColLength = this._getFreezeColLength();
        BI.each(o.columnSize, function (i, size) {
            if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
                totalLeftColumnSize += size;
            } else {
                totalRightColumnSize += size;
            }
            totalColumnSize += size;
            if (i === 0) {
                summaryColumnSizeArray[i] = size;
            } else {
                summaryColumnSizeArray[i] = summaryColumnSizeArray[i - 1] + size;
            }
        });

        var otlw = regionSize;
        var otlh = this._getFreezeHeaderHeight();
        var otrw = this._width - regionSize;
        var otrh = this._getFreezeHeaderHeight();
        var oblw = regionSize;
        var oblh = this._height - otlh;
        var obrw = this._width - regionSize;
        var obrh = this._height - otrh;

        this.topLeft.setWidth(otlw);
        this.topLeft.setHeight(otlh);
        this.topRight.setWidth(otrw);
        this.topRight.setHeight(otrh);
        this.bottomLeft.setWidth(oblw);
        this.bottomLeft.setHeight(oblh);
        this.bottomRight.setWidth(obrw);
        this.bottomRight.setHeight(obrh);

        this.topLeftGrid.setWidth(otlw);
        this.topLeftGrid.setHeight(otlh);
        this.topRightGrid.setWidth(otrw);
        this.topRightGrid.setHeight(otrh);
        this.bottomLeftGrid.setWidth(oblw);
        this.bottomLeftGrid.setHeight(oblh);
        this.bottomRightGrid.setWidth(obrw);
        this.bottomRightGrid.setHeight(obrh);

        this.topLeftGrid.setEstimatedColumnSize(freezeColLength > 0 ? totalLeftColumnSize / freezeColLength : 0);
        this.topLeftGrid.setEstimatedRowSize(o.headerRowSize);
        this.topRightGrid.setEstimatedColumnSize((o.columnSize.length - freezeColLength) > 0 ? (totalRightColumnSize / (o.columnSize.length - freezeColLength)) : 0);
        this.topRightGrid.setEstimatedRowSize(o.headerRowSize);
        this.bottomLeftGrid.setEstimatedColumnSize(freezeColLength > 0 ? totalLeftColumnSize / freezeColLength : 0);
        this.bottomLeftGrid.setEstimatedRowSize(o.rowSize);
        this.bottomRightGrid.setEstimatedColumnSize((o.columnSize.length - freezeColLength) > 0 ? (totalRightColumnSize / (o.columnSize.length - freezeColLength)) : 0);
        this.bottomRightGrid.setEstimatedRowSize(o.rowSize);

        this.topLeftGrid.setColumnCount(freezeColLength);
        this.topRightGrid.setColumnCount(o.columnSize.length - freezeColLength);
        this.bottomLeftGrid.setColumnCount(freezeColLength);
        this.bottomRightGrid.setColumnCount(o.columnSize.length - freezeColLength);

        var items = this.contextLayout.attr("items");
        items[1].left = regionSize;
        items[2].top = this._getFreezeHeaderHeight();
        items[3].left = regionSize;
        items[3].top = this._getFreezeHeaderHeight();
        this.contextLayout.attr("items", items);
        this.contextLayout.resize();

        var leftHeader = [], rightHeader = [], leftItems = [], rightItems = [];
        BI.each(o.header, function (i, cols) {
            leftHeader[i] = [];
            rightHeader[i] = [];
            BI.each(cols, function (j, col) {
                var cell = {
                    type: "bi.grid_table_cell",
                    cell: col
                };
                if (j < freezeColLength) {
                    leftHeader[i].push(cell);
                } else {
                    rightHeader[i].push(cell);
                }
            });
        });
        BI.each(this._getActualItems(), function (i, cols) {
            leftItems[i] = [];
            rightItems[i] = [];
            BI.each(cols, function (j, col) {
                var cell = {
                    type: "bi.grid_table_cell",
                    cell: col
                };
                if (j < freezeColLength) {
                    leftItems[i].push(cell);
                } else {
                    rightItems[i].push(cell);
                }
            });
        });

        this.topLeftGrid.populate(leftHeader);
        this.topRightGrid.populate(rightHeader);
        this.bottomLeftGrid.populate(leftItems);
        this.bottomRightGrid.populate(rightItems);
    }
});
BI.shortcut("bi.quick_grid_table", BI.QuickGridTable);/**
 *
 * 表格滚动条
 *
 * Created by GUY on 2016/1/12.
 * @class BI.GridTableScrollbar
 * @extends BI.Widget
 */
BI.GridTableScrollbar = BI.inherit(BI.Widget, {
    _const: {
        FACE_MARGIN: 4,
        FACE_MARGIN_2: 4 * 2,
        FACE_SIZE_MIN: 30,
        KEYBOARD_SCROLL_AMOUNT: 40
    },
    _defaultConfig: function () {
        return BI.extend(BI.GridTableScrollbar.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "scrollbar-layout-main public-scrollbar-main",
            attributes: {
                tabIndex: 0
            },
            contentSize: 0,
            defaultPosition: 0,
            isOpaque: false,
            orientation: "vertical",
            position: 0,
            size: 0
        });
    },

    render: function () {
        var self = this, o = this.options;
        this.focused = false;
        this.isDragging = false;
        this.face = BI.createWidget({
            type: "bi.layout",
            cls: "scrollbar-layout-face public-scrollbar-face "
            + (this._isHorizontal() ? "scrollbar-layout-face-horizontal" : "scrollbar-layout-face-vertical")
        });
        this.contextLayout = BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.face,
                left: 0,
                top: 0
            }]
        });
    },

    mounted: function () {
        var self = this, o = this.options;
        var onWheel = o.orientation === "horizontal" ? this._onWheelX : this._onWheelY;
        this._wheelHandler = new BI.WheelHandler(
            BI.bind(onWheel, this),
            BI.bind(this._shouldHandleX, this),
            BI.bind(this._shouldHandleY, this)
        );
        this._mouseMoveTracker = new BI.MouseMoveTracker(
            BI.bind(this._onMouseMove, this),
            BI.bind(this._onMouseMoveEnd, this),
            document
        );
        this.element.on("mousedown", BI.bind(this._onMouseDown, this));
        this.element.on("mousewheel", function (e) {
            self._wheelHandler.onWheel(e.originalEvent);
        });
        this.element.on("keydown", BI.bind(this._onKeyDown, this));
        this.element.on("focus", function () {
            self.focused = true;
            self._populate();
        });
        this.element.on("blur", function () {
            self.focused = false;
            self._populate();
        });
        if (this._isHorizontal()) {
            this.element.addClass("scrollbar-layout-main-horizontal");
        } else {
            this.element.addClass("scrollbar-layout-main-vertical");
        }
        this._populate();
    },

    _isHorizontal: function () {
        return this.options.orientation === "horizontal";
    },

    _getScale: function () {
        var o = this.options;
        var scale = o.size / o.contentSize;
        var faceSize = o.size * scale;

        if (faceSize < this._const.FACE_SIZE_MIN) {
            scale = (o.size - this._const.FACE_SIZE_MIN) / (o.contentSize - o.size);
        }
        return scale;
    },

    _getFaceSize: function () {
        var o = this.options;
        var scale = o.size / o.contentSize;
        var faceSize = o.size * scale;

        if (faceSize < this._const.FACE_SIZE_MIN) {
            faceSize = this._const.FACE_SIZE_MIN;
        }
        return faceSize;
    },

    _shouldHandleX: function (delta) {
        return this.options.orientation === "horizontal" ?
            this._shouldHandleChange(delta) :
            false;
    },

    _shouldHandleY: function (delta) {
        return this.options.orientation !== "horizontal" ?
            this._shouldHandleChange(delta) :
            false;
    },

    _shouldHandleChange: function (delta) {
        return this.options.position + delta !== this.options.position;
    },

    _onWheelY: function (deltaX, deltaY) {
        this._onWheel(deltaY);
    },

    _onWheelX: function (deltaX, deltaY) {
        this._onWheel(deltaX);
    },

    _onWheel: function (delta) {
        var maxPosition = this.options.contentSize - this.options.size;
        this.options.position += delta;
        if (this.options.position < 0) {
            this.options.position = 0;
        } else if (this.options.position > maxPosition) {
            this.options.position = maxPosition;
        }
        this._populate();
        this.fireEvent(BI.GridTableScrollbar.EVENT_SCROLL, this.options.position);
    },

    _onMouseDown: function (e) {
        if (e.target !== this.face.element[0]) {
            var position = this._isHorizontal() ? e.offsetX : e.offsetY;
            position /= this._getScale();
            this.options.position = BI.clamp(position - (this._getFaceSize() * 0.5 / this._getScale()), 0, this.options.contentSize - this.options.size);
            this._populate();
            this.fireEvent(BI.GridTableScrollbar.EVENT_SCROLL, this.options.position);
        } else {
            this._mouseMoveTracker.captureMouseMoves(e);
        }
        try {
            this.element[0].focus();
        } catch (e) {

        }
    },

    _onMouseMove: function (deltaX, deltaY) {
        var delta = this._isHorizontal() ? deltaX : deltaY;
        delta /= this._getScale();
        this.options.position = BI.clamp(this.options.position + delta, 0, this.options.contentSize - this.options.size);
        this.isDragging = this._mouseMoveTracker.isDragging();
        this._populate();
        this.fireEvent(BI.GridTableScrollbar.EVENT_SCROLL, this.options.position);
    },

    _onMouseMoveEnd: function (event) {
        this._mouseMoveTracker.releaseMouseMoves();
        if (this.isDragging === true) {
            this.isDragging = false;
            this._populate();
        }
    },

    _onKeyDown: function (event) {
        var Keys = {
            BACKSPACE: 8,
            TAB: 9,
            RETURN: 13,
            ALT: 18,
            ESC: 27,
            SPACE: 32,
            PAGE_UP: 33,
            PAGE_DOWN: 34,
            END: 35,
            HOME: 36,
            LEFT: 37,
            UP: 38,
            RIGHT: 39,
            DOWN: 40,
            DELETE: 46,
            COMMA: 188,
            PERIOD: 190,
            A: 65,
            Z: 90,
            ZERO: 48,
            NUMPAD_0: 96,
            NUMPAD_9: 105
        };
        var keyCode = event.keyCode;

        if (keyCode === Keys.TAB) {
            return;
        }

        var distance = 40;
        var direction = 0;

        if (this._isHorizontal()) {
            switch (keyCode) {
                case Keys.HOME:
                    direction = -1;
                    distance = this.options.contentSize;
                    break;

                case Keys.LEFT:
                    direction = -1;
                    break;

                case Keys.RIGHT:
                    direction = 1;
                    break;

                default:
                    return;
            }
        }

        if (!this._isHorizontal()) {
            switch (keyCode) {
                case Keys.SPACE:
                    if (event.shiftKey) {
                        direction = -1;
                    } else {
                        direction = 1;
                    }
                    break;

                case Keys.HOME:
                    direction = -1;
                    distance = this.options.contentSize;
                    break;

                case Keys.UP:
                    direction = -1;
                    break;

                case Keys.DOWN:
                    direction = 1;
                    break;

                case Keys.PAGE_UP:
                    direction = -1;
                    distance = this.options.size;
                    break;

                case Keys.PAGE_DOWN:
                    direction = 1;
                    distance = this.options.size;
                    break;

                default:
                    return;
            }
        }

        this.options.position = BI.clamp(this.options.position + (distance * direction), 0, this.options.contentSize - this.options.size);
        event.preventDefault();
        this._populate();
        this.fireEvent(BI.GridTableScrollbar.EVENT_SCROLL, this.options.position);
    },

    _populate: function () {
        var self = this, o = this.options;
        if (o.size < 1 || o.contentSize <= o.size) {
            this.setVisible(false);
            return;
        }
        this.setVisible(true);

        var size = o.size;
        var isHorizontal = this._isHorizontal();
        var isActive = this.focused || this.isDragging;

        var faceSize = this._getFaceSize();
        var isOpaque = o.isOpaque;
        this.element[isOpaque === true ? "addClass" : "removeClass"]("public-scrollbar-main-opaque");
        this.element[isActive === true ? "addClass" : "removeClass"]("public-scrollbar-main-active");

        this.face.element[isActive === true ? "addClass" : "removeClass"]("public-scrollbar-face-active");

        var position = o.position * this._getScale() + this._const.FACE_MARGIN;

        var items = this.contextLayout.attr("items");
        if (isHorizontal) {
            this.setWidth(size);
            this.face.setWidth(faceSize - this._const.FACE_MARGIN_2);
            items[0].left = position;
            items[0].top = 0;
        } else {
            this.setHeight(size);
            this.face.setHeight(faceSize - this._const.FACE_MARGIN_2);
            items[0].left = 0;
            items[0].top = position;
        }
        this.contextLayout.attr("items", items);
        this.contextLayout.resize();
    },

    setContentSize: function (contentSize) {
        this.options.contentSize = contentSize;
    },

    setPosition: function (position) {
        this.options.position = position;
    },

    setSize: function (size) {
        this.options.size = size;
    },

    populate: function () {
        this._populate();
    }
});
BI.GridTableScrollbar.SIZE = 10;
BI.GridTableScrollbar.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.grid_table_scrollbar", BI.GridTableScrollbar);


BI.GridTableHorizontalScrollbar = BI.inherit(BI.Widget, {
    _const: {
        FACE_MARGIN: 4,
        FACE_MARGIN_2: 4 * 2,
        FACE_SIZE_MIN: 30,
        KEYBOARD_SCROLL_AMOUNT: 40
    },
    _defaultConfig: function () {
        return BI.extend(BI.GridTableHorizontalScrollbar.superclass._defaultConfig.apply(this, arguments), {
            attributes: {
                tabIndex: 0
            },
            contentSize: 0,
            position: 0,
            size: 0
        });
    },

    _init: function () {
        BI.GridTableHorizontalScrollbar.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.scrollbar = BI.createWidget({
            type: "bi.grid_table_scrollbar",
            orientation: "horizontal",
            isOpaque: true,
            position: o.position,
            contentSize: o.contentSize,
            size: o.size
        });
        this.scrollbar.on(BI.GridTableScrollbar.EVENT_SCROLL, function () {
            self.fireEvent(BI.GridTableHorizontalScrollbar.EVENT_SCROLL, arguments);
        });
        BI.createWidget({
            type: "bi.absolute",
            cls: "horizontal-scrollbar",
            element: this,
            width: o.size,
            height: BI.GridTableScrollbar.SIZE,
            items: [{
                el: {
                    type: "bi.absolute",
                    scrollable: false,
                    height: BI.GridTableScrollbar.SIZE,
                    items: [{
                        el: this.scrollbar,
                        left: 0,
                        top: 0
                    }]
                },
                top: 0,
                left: 0,
                right: 0
            }]
        });
    },

    setContentSize: function (contentSize) {
        this.options.contentSize = contentSize;
        this.scrollbar.setContentSize(contentSize);
    },

    setPosition: function (position) {
        this.options.position = position;
        this.scrollbar.setPosition(position);
    },

    setSize: function (size) {
        this.setWidth(size);
        this.options.size = size;
        this.scrollbar.setSize(size);
    },

    populate: function () {
        this.scrollbar.populate();
        var o = this.options;
        if (o.size < 1 || o.contentSize <= o.size) {
            this.setVisible(false);
            return;
        }
        this.setVisible(true);
    }
});
BI.GridTableHorizontalScrollbar.EVENT_SCROLL = "EVENT_SCROLL";
BI.shortcut("bi.grid_table_horizontal_scrollbar", BI.GridTableHorizontalScrollbar);/**
 *
 * 表格
 *
 * Created by GUY on 2015/9/22.
 * @class BI.TableHeaderCell
 * @extends BI.Single
 */
BI.TableHeaderCell = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.TableHeaderCell.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-table-header-cell",
            text: ""
        });
    },

    _init: function () {
        BI.TableHeaderCell.superclass._init.apply(this, arguments);
        var o = this.options;
        BI.createWidget({
            type: "bi.label",
            element: this,
            textAlign: o.textAlign || "center",
            height: this.options.height,
            text: this.options.text,
            value: this.options.value,
            lgap: o.lgap,
            rgap: o.rgap,
            hgap: o.hgap || 5
        });
    }
});

BI.shortcut("bi.table_header_cell", BI.TableHeaderCell);/**
 *
 * 表格
 *
 * 能处理静态宽度以及动态宽度的表， 百分比宽度的表请使用PreviewTable
 *
 * Created by GUY on 2015/9/22.
 * @class BI.Table
 * @extends BI.Widget
 */
BI.Table = BI.inherit(BI.Widget, {

    _defaultConfig: function () {
        return BI.extend(BI.Table.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-table",
            logic: { // 冻结的页面布局逻辑
                dynamic: false
            },

            isNeedFreeze: false, // 是否需要冻结单元格
            freezeCols: [], // 冻结的列号,从0开始,isNeedFreeze为true时生效

            isNeedMerge: false, // 是否需要合并单元格
            mergeCols: [], // 合并的单元格列号
            mergeRule: function (row1, row2) { // 合并规则, 默认相等时合并
                return BI.isEqual(row1, row2);
            },

            columnSize: [],
            headerRowSize: 25,
            footerRowSize: 25,
            rowSize: 25,

            regionColumnSize: false,

            header: [],
            footer: false,
            items: [] // 二维数组
        });
    },

    _calculateWidth: function (width) {
        if (!width || width === "0") {
            return "";
        }
        width = BI.parseFloat(width);
        if (width < 0) {
            width = 0;
        }
        return width > 1.01 ? width : (width * 100 + "%");
    },

    _calculateHeight: function (height) {
        return height ? height : "";
    },

    _isRightFreeze: function () {
        return BI.isNotEmptyArray(this.options.freezeCols) && BI.first(this.options.freezeCols) !== 0;
    },

    _createTopLeft: function () {
        var o = this.options, isRight = this._isRightFreeze();
        this.topLeftColGroupTds = {};
        this.topLeftBodyTds = {};
        this.topLeftBodyItems = {};
        var table = this._table();
        var colgroup = this._createColGroup(this.columnLeft, this.topLeftColGroupTds);
        var body = this.topLeftBody = this._body();
        body.element.append(this._createHeaderCells(this.topLeftItems, this.columnLeft, this.mergeLeft, this.topLeftBodyTds, this.topLeftBodyItems));
        BI.createWidget({
            type: "bi.adaptive",
            element: table,
            items: [colgroup, body]
        });
        if (isRight) {
            var w = 0;
            BI.each(o.columnSize, function (i, col) {
                if (!o.freezeCols.contains(i)) {
                    w += col;
                }
            });
            if (BI.isNumeric(w) && w > 1) {
                w = BI.parseFloat(w) + o.columnSize.length - o.freezeCols.length;
            }
        }
        return (this.topLeftContainer = BI.createWidget({
            type: "bi.adaptive",
            width: this._calculateWidth(w),
            items: [table]
        }));
    },

    _createTopRight: function () {
        var o = this.options, isRight = this._isRightFreeze();
        this.topRightColGroupTds = {};
        this.topRightBodyTds = {};
        this.topRightBodyItems = {};
        var table = this._table();
        var colgroup = this._createColGroup(this.columnRight, this.topRightColGroupTds);
        var body = this.topRightBody = this._body();
        body.element.append(this._createHeaderCells(this.topRightItems, this.columnRight, this.mergeRight, this.topRightBodyTds, this.topRightBodyItems, this.columnLeft.length));
        BI.createWidget({
            type: "bi.adaptive",
            element: table,
            items: [colgroup, body]
        });
        if (!isRight) {
            var w = 0;
            BI.each(o.columnSize, function (i, col) {
                if (!o.freezeCols.contains(i)) {
                    w += col;
                }
            });
            if (BI.isNumeric(w)) {
                w = BI.parseFloat(w) + o.columnSize.length - o.freezeCols.length;
            }
        }
        return (this.topRightContainer = BI.createWidget({
            type: "bi.adaptive",
            width: w || undefined,
            items: [table]
        }));
    },

    _createBottomLeft: function () {
        var o = this.options, isRight = this._isRightFreeze();
        this.bottomLeftColGroupTds = {};
        this.bottomLeftBodyTds = {};
        this.bottomLeftBodyItems = {};
        var table = this._table();
        var colgroup = this._createColGroup(this.columnLeft, this.bottomLeftColGroupTds);
        var body = this._createBottomLeftBody();
        BI.createWidget({
            type: "bi.adaptive",
            element: table,
            items: [colgroup, body]
        });
        if (isRight) {
            var w = 0;
            BI.each(o.columnSize, function (i, col) {
                if (!o.freezeCols.contains(i)) {
                    w += col;
                }
            });
            if (BI.isNumeric(w) && w > 1) {
                w = BI.parseFloat(w) + o.columnSize.length - o.freezeCols.length;
            }
        }
        return (this.bottomLeftContainer = BI.createWidget({
            type: "bi.adaptive",
            width: this._calculateWidth(w),
            items: [table]
        }));
    },

    _createBottomLeftBody: function () {
        var body = this.bottomLeftBody = this._body();
        body.element.append(this._createCells(this.bottomLeftItems, this.columnLeft, this.mergeLeft, this.bottomLeftBodyTds, this.bottomLeftBodyItems));
        return body;
    },

    _createBottomRight: function () {
        var o = this.options, isRight = this._isRightFreeze();
        this.bottomRightColGroupTds = {};
        this.bottomRightBodyTds = {};
        this.bottomRightBodyItems = {};
        var table = this._table();
        var colgroup = this._createColGroup(this.columnRight, this.bottomRightColGroupTds);
        var body = this._createBottomRightBody();
        BI.createWidget({
            type: "bi.adaptive",
            element: table,
            items: [colgroup, body]
        });
        if (!isRight) {
            var w = 0;
            BI.each(o.columnSize, function (i, col) {
                if (!o.freezeCols.contains(i)) {
                    w += col;
                }
            });
            if (BI.isNumeric(w) && w > 1) {
                w = BI.parseFloat(w) + o.columnSize.length - o.freezeCols.length;
            }
        }
        return (this.bottomRightContainer = BI.createWidget({
            type: "bi.adaptive",
            width: this._calculateWidth(w),
            items: [table]
        }));
    },

    _createBottomRightBody: function () {
        var body = this.bottomRightBody = this._body();
        body.element.append(this._createCells(this.bottomRightItems, this.columnRight, this.mergeRight, this.bottomRightBodyTds, this.bottomRightBodyItems, this.columnLeft.length));
        return body;
    },

    _createFreezeTable: function () {
        var self = this, o = this.options;
        var isRight = this._isRightFreeze();
        var split = this._split(o.header);
        this.topLeftItems = split.left;
        this.topRightItems = split.right;
        split = this._split(o.items);
        this.bottomLeftItems = split.left;
        this.bottomRightItems = split.right;

        this.columnLeft = [];
        this.columnRight = [];
        BI.each(o.columnSize, function (i, size) {
            if (o.freezeCols.contains(i)) {
                self[isRight ? "columnRight" : "columnLeft"].push(size);
            } else {
                self[isRight ? "columnLeft" : "columnRight"].push(size);
            }
        });
        this.mergeLeft = [];
        this.mergeRight = [];
        BI.each(o.mergeCols, function (i, col) {
            if (o.freezeCols.contains(col)) {
                self[isRight ? "mergeRight" : "mergeLeft"].push(col);
            } else {
                self[isRight ? "mergeLeft" : "mergeRight"].push(col);
            }
        });

        var topLeft = this._createTopLeft();
        var topRight = this._createTopRight();
        var bottomLeft = this._createBottomLeft();
        var bottomRight = this._createBottomRight();

        this.scrollTopLeft = BI.createWidget({
            type: "bi.adaptive",
            cls: "scroll-top-left",
            width: "100%",
            height: "100%",
            scrollable: false,
            items: [topLeft]
        });
        this.scrollTopRight = BI.createWidget({
            type: "bi.adaptive",
            cls: "scroll-top-right",
            width: "100%",
            height: "100%",
            scrollable: false,
            items: [topRight]
        });
        this.scrollBottomLeft = BI.createWidget({
            type: "bi.adaptive",
            cls: "scroll-bottom-left",
            width: "100%",
            height: "100%",
            scrollable: isRight || null,
            scrollx: !isRight,
            items: [bottomLeft]
        });
        this.scrollBottomRight = BI.createWidget({
            type: "bi.adaptive",
            cls: "scroll-bottom-right",
            width: "100%",
            height: "100%",
            scrollable: !isRight || null,
            scrollx: isRight,
            items: [bottomRight]
        });
        this.topLeft = BI.createWidget({
            type: "bi.adaptive",
            cls: "top-left",
            scrollable: false,
            items: [this.scrollTopLeft]
        });
        this.topRight = BI.createWidget({
            type: "bi.adaptive",
            cls: "top-right",
            scrollable: false,
            items: [this.scrollTopRight]
        });
        this.bottomLeft = BI.createWidget({
            type: "bi.adaptive",
            cls: "bottom-left",
            // scrollable: false,
            items: [this.scrollBottomLeft]
        });
        this.bottomRight = BI.createWidget({
            type: "bi.adaptive",
            cls: "bottom-right",
            scrollable: false,
            items: [this.scrollBottomRight]
        });

        var headerHeight = o.header.length * ((o.headerRowSize || o.rowSize) + 1) + 1;
        var leftWidth = BI.sum(o.freezeCols, function (i, col) {
            return o.columnSize[col] > 1 ? o.columnSize[col] + 1 : o.columnSize[col];
        });

        this._resize = function () {
            if (self.scrollBottomLeft.element.is(":visible")) {
                self.scrollBottomLeft.element.css({"overflow-x": "auto"});
                self.scrollBottomRight.element.css({"overflow-x": "auto"});
                self.setColumnSize(o.columnSize);
                if (isRight) {
                    self.scrollBottomLeft.element.css({"overflow-y": "auto"});
                } else {
                    self.scrollBottomRight.element.css({"overflow-y": "auto"});
                }
                if (self.scrollBottomLeft.element.hasHorizonScroll() || self.scrollBottomRight.element.hasHorizonScroll()) {
                    self.scrollBottomLeft.element.css("overflow-x", "scroll");
                    self.scrollBottomRight.element.css("overflow-x", "scroll");
                }
                if (self.scrollBottomRight.element.hasVerticalScroll()) {
                    self.scrollTopRight.element.css("overflow-y", "scroll");
                } else {
                    self.scrollTopRight.element.css("overflow-y", "hidden");
                }
                if (self.scrollBottomLeft.element.hasVerticalScroll()) {
                    self.scrollTopLeft.element.css("overflow-y", "scroll");
                } else {
                    self.scrollTopLeft.element.css("overflow-y", "hidden");
                }
                self.scrollTopLeft.element[0].scrollLeft = self.scrollBottomLeft.element[0].scrollLeft;
                self.scrollTopRight.element[0].scrollLeft = self.scrollBottomRight.element[0].scrollLeft;
                self.scrollBottomLeft.element[0].scrollTop = self.scrollBottomRight.element[0].scrollTop;
            }
        };

        var regionColumnSize = o.regionColumnSize;
        if (o.freezeCols.length === 0) {
            regionColumnSize = isRight ? ["fill", 0] : [0, "fill"];
        } else if (o.freezeCols.length >= o.columnSize.length) {
            regionColumnSize = isRight ? [0, "fill"] : ["fill", 0];
        }
        this.partitions = BI.createWidget(BI.extend({
            element: this
        }, BI.LogicFactory.createLogic("table", BI.extend({}, o.logic, {
            rows: 2,
            columns: 2,
            columnSize: regionColumnSize || (isRight ? ["fill", leftWidth] : [leftWidth, "fill"]),
            rowSize: [headerHeight, "fill"],
            items: [[{
                el: this.topLeft
            }, {
                el: this.topRight
            }], [{
                el: this.bottomLeft
            }, {
                el: this.bottomRight
            }]]
        }))));

        this._initFreezeScroll();
        BI.ResizeDetector.addResizeListener(this, function () {
            self._resize();
            self.fireEvent(BI.Table.EVENT_TABLE_RESIZE);
        });
    },

    mounted: function () {
        this._resize && this._resize();
        this.fireEvent(BI.Table.EVENT_TABLE_AFTER_INIT);
    },

    _initFreezeScroll: function () {
        var self = this, o = this.options;
        scroll(this.scrollBottomRight.element, this.scrollTopRight.element, this.scrollBottomLeft.element);

        // scroll(this.scrollBottomLeft.element, this.scrollTopLeft.element, this.scrollBottomRight.element);

        function scroll (scrollElement, scrollTopElement, otherElement) {
            scrollElement.scroll(function (e) {
                otherElement.scrollTop(scrollElement.scrollTop());
                scrollTopElement.scrollLeft(scrollElement.scrollLeft());
                self.fireEvent(BI.Table.EVENT_TABLE_SCROLL);
            });
        }
    },

    resize: function () {
        this._resize && this._resize();
    },

    _createCells: function (items, columnSize, mergeCols, TDs, Ws, start, rowSize) {
        var self = this, o = this.options, preCol = {}, preRow = {}, preRW = {}, preCW = {}, map = {};
        columnSize = columnSize || o.columnSize;
        mergeCols = mergeCols || o.mergeCols;
        TDs = TDs || {};
        Ws = Ws || {};
        start = start || 0;
        rowSize || (rowSize = o.rowSize);
        var frag = document.createDocumentFragment();
        BI.each(items, function (i, rows) {
            var tr = $("<tr>").addClass((i & 1) === 0 ? "odd" : "even");
            BI.each(rows, function (j, row) {
                if (!map[i]) {
                    map[i] = {};
                }
                if (!TDs[i]) {
                    TDs[i] = {};
                }
                if (!Ws[i]) {
                    Ws[i] = {};
                }
                map[i][j] = row;

                if (o.isNeedMerge && mergeCols.contains(j)) {
                    if (i === 0 && j === 0) {
                        createOneEl(0, 0);
                    } else if (j === 0 && i > 0) {
                        var isNeedMergeRow = o.mergeRule(map[i][j], map[i - 1][j]);
                        if (isNeedMergeRow === true) {
                            mergeRow(i, j);
                            preRow[i] = preCol[j];
                            preRW[i] = preCW[j];
                        } else {
                            createOneEl(i, j);
                        }
                    } else if (i === 0 && j > 0) {
                        var isNeedMergeCol = o.mergeRule(map[i][j], map[i][j - 1]);
                        if (isNeedMergeCol === true) {
                            mergeCol(i, j);
                            preCol[j] = preRow[i];
                            preCW[j] = preRW[i];
                        } else {
                            createOneEl(i, j);
                        }
                    } else {
                        var isNeedMergeRow = o.mergeRule(map[i][j], map[i - 1][j]);
                        var isNeedMergeCol = o.mergeRule(map[i][j], map[i][j - 1]);
                        if (isNeedMergeCol && isNeedMergeRow) {
                            return;
                        }
                        if (isNeedMergeCol) {
                            mergeCol(i, j);
                        }
                        if (isNeedMergeRow) {
                            mergeRow(i, j);
                        }
                        if (!isNeedMergeCol && !isNeedMergeRow) {
                            createOneEl(i, j);
                        }
                    }
                } else {
                    createOneEl(i, j);
                }
            });

            function mergeRow (i, j) {
                var height = (preCol[j].attr("height") | 0) + rowSize + 1;
                preCol[j].attr("height", height).css("height", height);
                // preCW[j].element.css("height", height);
                var rowspan = ((preCol[j].attr("rowspan") || 1) | 0) + 1;
                preCol[j].attr("rowspan", rowspan);
                preCol[j].__mergeRows.pushDistinct(i);
                TDs[i][j] = preCol[j];
                Ws[i][j] = preCW[j];
            }

            function mergeCol (i, j) {
                if (columnSize[j]) {
                    var width = preRow[i].attr("width") | 0;
                    if (width > 1.05 && columnSize[j]) {
                        width = width + columnSize[j] + 1;
                        if (j === columnSize.length - 1) {
                            width--;
                        }
                    } else {
                        width = width + columnSize[j];
                    }
                    width = self._calculateWidth(width);
                    preRow[i].attr("width", width).css("width", width);
                    preRW[i].element.width(width);
                }
                var colspan = ((preRow[i].attr("colspan") || 1) | 0) + 1;
                preRow[i].attr("colspan", colspan);
                preRow[i].__mergeCols.pushDistinct(j);
                TDs[i][j] = preRow[i];
                Ws[i][j] = preRW[i];
            }

            function createOneEl (r, c) {
                var width = self._calculateWidth(columnSize[c]);
                if (width > 1.05 && c === columnSize.length - 1) {
                    width--;
                }
                var height = self._calculateHeight(rowSize);
                var td = $("<td>").attr("height", height)
                    .attr("width", width).css({width: width, height: height, position: "relative"})
                    .addClass((c & 1) === 0 ? "odd-col" : "even-col")
                    .addClass(r === 0 ? "first-row" : "")
                    .addClass(c === 0 ? "first-col" : "")
                    .addClass(c === rows.length - 1 ? "last-col" : "");
                var w = BI.createWidget(map[r][c], {
                    type: "bi.table_cell",
                    textAlign: "left",
                    width: BI.isNumeric(width) ? width : "",
                    height: BI.isNumeric(height) ? height : "",
                    _row: r,
                    _col: c + start
                });
                self.addWidget(w.getName(), w);
                w._mount();
                w.element.css("position", "relative");
                td.append(w.element);
                tr.append(td);
                preCol[c] = td;
                preCol[c].__mergeRows = [r];
                preCW[c] = w;
                preRow[r] = td;
                preRow[r].__mergeCols = [c];
                preRW[r] = w;
                TDs[r][c] = td;
                Ws[r][c] = w;
            }

            frag.appendChild(tr[0]);
        });
        return frag;
    },

    _createColGroupCells: function (columnSize, store) {
        var self = this, o = this.options;
        columnSize = columnSize || o.columnSize;
        store = store || {};
        var frag = document.createDocumentFragment();
        BI.each(columnSize, function (i, size) {
            var width = self._calculateWidth(size);
            var col = $("<col>").attr("width", width).css("width", width);
            store[i] = col;
            frag.appendChild(col[0]);
        });
        return frag;
    },

    _createHeaderCells: function (items, columnSize, mergeCols, TDs, Ws, start) {
        var self = this, o = this.options;
        start || (start = 0);
        var frag = this._createCells(items, columnSize, BI.range(o.columnSize.length), TDs, Ws, start, o.headerRowSize || o.rowSize);

        return frag;
    },

    _createFooterCells: function (items, columnSize, TDs, Ws) {
        var o = this.options;
        var frag = this._createCells(items, columnSize, [], TDs, Ws, 0);
        return frag;
    },

    _createColGroup: function (columnSize, store, widgets) {
        var self = this, o = this.options;
        this.colgroup = this._colgroup();
        this.colgroup.element.append(this._createColGroupCells(columnSize, store, widgets));
        return this.colgroup;
    },

    _createHeader: function () {
        var self = this, o = this.options;
        if (o.header === false) {
            return;
        }
        this.header = this._header();
        this.header.element.append(this._createHeaderCells(o.header, null, null, this.headerTds, this.headerItems));
        return this.header;
    },

    _createFooter: function (columnSize, store, widgets) {
        var self = this, o = this.options;
        if (o.footer === false) {
            return;
        }
        this.footer = this._footer();
        this.footer.element.append(this._createFooterCells(o.footer, null, this.footerTds, this.footerItems));
        return this.footer;
    },


    _createBody: function () {
        var self = this, o = this.options;
        this.body = this._body();
        this.body.element.append(this._createCells(o.items, null, null, this.bodyTds, this.bodyItems));
        return this.body;
    },

    _createNormalTable: function () {
        var self = this, o = this.options, table = this._table();
        this.colgroupTds = {};
        this.headerTds = {};
        this.footerTds = {};
        this.bodyTds = {};

        this.headerItems = {};
        this.footerItems = {};
        this.bodyItems = {};
        var colgroup = this._createColGroup(null, this.colgroupTds);
        var header = this._createHeader();
        var footer = this._createFooter();
        var body = this._createBody();

        BI.createWidget({
            type: "bi.adaptive",
            element: table,
            items: [colgroup, header, footer, body]
        });

        var w = BI.sum(this.options.columnSize) || undefined;
        w = this._calculateWidth(w);
        if (BI.isNumeric(w) && w > 1) {
            w += o.columnSize.length;
        }
        this.tableContainer = BI.createWidget({
            type: "bi.adaptive",
            width: this._calculateWidth(w),
            items: [table]
        });

        this.scrollBottomRight = BI.createWidget({
            type: "bi.adaptive",
            width: "100%",
            height: "100%",
            cls: "scroll-bottom-right",
            scrollable: true,
            items: [this.tableContainer]
        });

        BI.createWidget({
            type: "bi.adaptive",
            cls: "bottom-right",
            element: this,
            scrollable: false,
            items: [this.scrollBottomRight]
        });

        this._initNormalScroll();
        BI.nextTick(function () {
            if (self.element.is(":visible")) {
                self.fireEvent(BI.Table.EVENT_TABLE_AFTER_INIT);
            }
        });
    },

    _initNormalScroll: function () {
        var self = this;
        this.scrollBottomRight.element.scroll(function (e) {
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL);
        });
    },

    _split: function (items) {
        var o = this.options, left = [], right = [], isRight = this._isRightFreeze();
        BI.each(items, function (i, rows) {
            left.push([]);
            right.push([]);
            BI.each(rows, function (j, cell) {
                if (o.freezeCols.contains(j)) {
                    (isRight ? right : left)[i].push(cell);
                } else {
                    (isRight ? left : right)[i].push(cell);
                }
            });
        });
        return {
            left: left,
            right: right
        };
    },

    _table: function () {
        return BI.createWidget({
            type: "bi.layout",
            tagName: "table",
            cls: "table",
            attribute: {cellspacing: 0, cellpadding: 0}
        });
    },

    _header: function () {
        return BI.createWidget({
            type: "bi.layout",
            cls: "header",
            tagName: "thead"
        });
    },

    _footer: function () {
        return BI.createWidget({
            type: "bi.layout",
            cls: "footer",
            tagName: "tfoot"
        });
    },

    _body: function () {
        return BI.createWidget({
            type: "bi.layout",
            tagName: "tbody",
            cls: "body"
        });
    },

    _colgroup: function () {
        return BI.createWidget({
            type: "bi.layout",
            tagName: "colgroup"
        });
    },

    render: function () {
        if (this.options.items.length > 0 || this.options.header.length > 0) {
            this.populate(this.options.items);
        }
    },

    setColumnSize: function (columnSize) {
        var self = this, o = this.options;
        var isRight = this._isRightFreeze();
        o.columnSize = columnSize || [];
        if (o.isNeedFreeze) {
            var columnLeft = [];
            var columnRight = [];
            BI.each(o.columnSize, function (i, size) {
                if (o.freezeCols.contains(i)) {
                    isRight ? columnRight.push(size) : columnLeft.push(size);
                } else {
                    isRight ? columnLeft.push(size) : columnRight.push(size);
                }
            });
            var topleft = 0, topright = 1, bottomleft = 2, bottomright = 3;
            var run = function (direction) {
                var colgroupTds, bodyTds, bodyItems, sizes;
                switch (direction) {
                    case topleft:
                        colgroupTds = self.topLeftColGroupTds;
                        bodyTds = self.topLeftBodyTds;
                        bodyItems = self.topLeftBodyItems;
                        sizes = columnLeft;
                        break;
                    case topright:
                        colgroupTds = self.topRightColGroupTds;
                        bodyTds = self.topRightBodyTds;
                        bodyItems = self.topRightBodyItems;
                        sizes = columnRight;
                        break;
                    case bottomleft:
                        colgroupTds = self.bottomLeftColGroupTds;
                        bodyTds = self.bottomLeftBodyTds;
                        bodyItems = self.bottomLeftBodyItems;
                        sizes = columnLeft;
                        break;
                    case bottomright:
                        colgroupTds = self.bottomRightColGroupTds;
                        bodyTds = self.bottomRightBodyTds;
                        bodyItems = self.bottomRightBodyItems;
                        sizes = columnRight;
                        break;
                }
                BI.each(colgroupTds, function (i, colgroup) {
                    var width = colgroup.attr("width") | 0;
                    if (sizes[i] !== "" && width !== sizes[i]) {
                        var w = self._calculateWidth(sizes[i]);
                        colgroup.attr("width", w).css("width", w);
                        BI.each(bodyTds, function (j, items) {
                            if (items[i]) {
                                if (items[i].__mergeCols.length > 1) {
                                    var wid = 0;
                                    BI.each(sizes, function (t, s) {
                                        if (items[i].__mergeCols.contains(t)) {
                                            wid += s;
                                        }
                                    });
                                    wid = self._calculateWidth(wid);
                                    if (wid > 1) {
                                        wid += items[i].__mergeCols.length - 1;
                                    }
                                    if (BI.isNumeric(wid)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].attr("width", wid - 1).css("width", wid - 1);
                                        } else {
                                            items[i].attr("width", wid).css("width", wid);
                                        }
                                    } else {
                                        items[i].attr("width", "").css("width", "");
                                    }
                                } else {
                                    if (i == BI.size(items) - 1) {
                                        items[i].attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].attr("width", w).css("width", w);
                                    }
                                }
                            }
                        });
                        BI.each(bodyItems, function (j, items) {
                            if (items[i]) {
                                if (bodyTds[j][i].__mergeCols.length > 1) {
                                    var wid = 0;
                                    BI.each(sizes, function (t, s) {
                                        if (bodyTds[j][i].__mergeCols.contains(t)) {
                                            wid += s;
                                        }
                                    });
                                    wid = self._calculateWidth(wid);
                                    if (wid > 1) {
                                        wid += bodyTds[j][i].__mergeCols.length - 1;
                                    }
                                    if (BI.isNumeric(wid)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                        } else {
                                            items[i].element.attr("width", wid).css("width", wid);
                                        }
                                    } else {
                                        items[i].element.attr("width", "").css("width", "");
                                    }
                                } else {
                                    if (BI.isNumeric(w)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].element.attr("width", w - 1).css("width", w - 1);
                                        } else {
                                            items[i].element.attr("width", w).css("width", w);
                                        }
                                    } else {
                                        items[i].element.attr("width", "").css("width", "");
                                    }
                                }
                            }
                        });
                    }
                });
            };
            run(topleft);
            run(topright);
            run(bottomleft);
            run(bottomright);

            var lw = 0, rw = 0;
            this.columnLeft = [];
            this.columnRight = [];
            BI.each(o.columnSize, function (i, size) {
                if (o.freezeCols.contains(i)) {
                    lw += size;
                    self[isRight ? "columnRight" : "columnLeft"].push(size);
                } else {
                    rw += size;
                    self[isRight ? "columnLeft" : "columnRight"].push(size);
                }
            });
            lw = this._calculateWidth(lw);
            rw = this._calculateWidth(rw);

            if (BI.isNumeric(lw)) {
                lw = BI.parseFloat(lw) + o.freezeCols.length;
            }
            if (BI.isNumeric(rw)) {
                rw = BI.parseFloat(rw) + o.columnSize.length - o.freezeCols.length;
            }
            this.topLeftContainer.element.width(isRight ? rw : lw);
            this.bottomLeftContainer.element.width(isRight ? rw : lw);
            this.topRightContainer.element.width(isRight ? lw : rw);
            this.bottomRightContainer.element.width(isRight ? lw : rw);
            this.scrollTopLeft.element[0].scrollLeft = this.scrollBottomLeft.element[0].scrollLeft;
            this.scrollTopRight.element[0].scrollLeft = this.scrollBottomRight.element[0].scrollLeft;
        } else {
            BI.each(this.colgroupTds, function (i, colgroup) {
                var width = colgroup.attr("width") | 0;
                if (o.columnSize[i] !== "" && width !== o.columnSize[i]) {
                    var w = self._calculateWidth(o.columnSize[i]);
                    colgroup.attr("width", w).css("width", w);
                    BI.each(self.bodyTds, function (j, items) {
                        if (items[i]) {
                            if (items[i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (items[i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += items[i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].attr("width", "").css("width", "");
                                }
                            } else {
                                if (i == BI.size(items) - 1) {
                                    items[i].attr("width", w - 1).css("width", w - 1);
                                } else {
                                    items[i].attr("width", w).css("width", w);
                                }
                            }
                        }
                    });
                    BI.each(self.headerTds, function (j, items) {
                        if (items[i]) {
                            if (items[i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (items[i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += items[i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].attr("width", "").css("width", "");
                                }
                            } else {
                                if (i == BI.size(items) - 1) {
                                    items[i].attr("width", w - 1).css("width", w - 1);
                                } else {
                                    items[i].attr("width", w).css("width", w);
                                }
                            }
                        }
                    });
                    BI.each(self.footerTds, function (j, items) {
                        if (items[i]) {
                            if (items[i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (items[i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += items[i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].attr("width", "").css("width", "");
                                }
                            } else {
                                if (i == BI.size(items) - 1) {
                                    items[i].attr("width", w - 1).css("width", w - 1);
                                } else {
                                    items[i].attr("width", w).css("width", w);
                                }
                            }
                        }
                    });
                    BI.each(self.bodyItems, function (j, items) {
                        if (items[i]) {
                            if (self.bodyTds[j][i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (self.bodyTds[j][i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += self.bodyTds[j][i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                    } else {
                                        items[i].element.attr("width", wid).css("width", wid);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            } else {
                                if (BI.isNumeric(w)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].element.attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            }
                        }
                    });
                    BI.each(self.headerItems, function (j, items) {
                        if (items[i]) {
                            if (self.headerTds[j][i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (self.headerTds[j][i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += self.headerTds[j][i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                    } else {
                                        items[i].element.attr("width", wid).css("width", wid);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            } else {
                                if (BI.isNumeric(w)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].element.attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            }
                        }
                    });
                    BI.each(self.footerItems, function (j, items) {
                        if (items[i]) {
                            if (self.footerTds[j][i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(o.columnSize, function (t, s) {
                                    if (self.footerTds[j][i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += self.footerTds[j][i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                    } else {
                                        items[i].element.attr("width", wid).css("width", wid);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            } else {
                                if (BI.isNumeric(w)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].element.attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            }
                        }
                    });
                }
            });
            var w = this._calculateWidth(BI.sum(o.columnSize));
            if (w > 1.05) {
                w += o.columnSize.length;
            }
            if (w > 1.05) {
                this.tableContainer.element.width(w);
            }
        }
    },

    getColumnSize: function () {
        return this.options.columnSize;
    },

    getCalculateColumnSize: function () {
        var self = this, o = this.options;
        var columnSize = [];
        if (o.isNeedFreeze === true) {
            if (BI.size(this.bottomLeftBodyTds) > 0 || BI.size(this.bottomRightBodyTds) > 0) {
                if (!BI.any(this.bottomLeftBodyTds, function (i, tds) {
                        if (!BI.any(tds, function (i, item) {
                                if (item.__mergeCols.length > 1) {
                                    return true;
                                }
                            })) {
                            BI.each(tds, function (i, item) {
                                var width = item.width() / item.__mergeCols.length;
                                if (i == BI.size(tds) - 1) {
                                    width++;
                                }
                                columnSize.push(width);
                            });
                            return true;
                        }
                    })) {
                    BI.each(this.bottomLeftBodyTds[0], function (i, item) {
                        var width = item.width() / item.__mergeCols.length;
                        if (i == BI.size(self.bottomLeftBodyTds[0]) - 1) {
                            width++;
                        }
                        columnSize.push(width);
                    });
                }
                if (!BI.any(this.bottomRightBodyTds, function (i, tds) {
                        if (!BI.any(tds, function (i, item) {
                                if (item.__mergeCols.length > 1) {
                                    return true;
                                }
                            })) {
                            BI.each(tds, function (i, item) {
                                var width = item.width() / item.__mergeCols.length;
                                if (i == BI.size(tds) - 1) {
                                    width++;
                                }
                                columnSize.push(width);
                            });
                            return true;
                        }
                    })) {
                    BI.each(this.bottomRightBodyTds[0], function (i, item) {
                        var width = item.width() / item.__mergeCols.length;
                        if (i == BI.size(self.bottomRightBodyTds[0]) - 1) {
                            width++;
                        }
                        columnSize.push(width);
                    });
                }
                return columnSize;
            }
            if (!BI.any(this.topLeftBodyTds, function (i, tds) {
                    if (!BI.any(tds, function (i, item) {
                            if (item.__mergeCols.length > 1) {
                                return true;
                            }
                        })) {
                        BI.each(tds, function (i, item) {
                            var width = item.width() / item.__mergeCols.length;
                            if (i == BI.size(tds) - 1) {
                                width++;
                            }
                            columnSize.push(width);
                        });
                        return true;
                    }
                })) {
                BI.each(this.topLeftBodyTds[BI.size(this.topLeftBodyTds) - 1], function (i, item) {
                    var width = item.width() / item.__mergeCols.length;
                    if (i == BI.size(self.topLeftBodyTds[BI.size(self.topLeftBodyTds) - 1]) - 1) {
                        width++;
                    }
                    columnSize.push(width);
                });
            }
            if (!BI.any(this.topRightBodyTds, function (i, tds) {
                    if (!BI.any(tds, function (i, item) {
                            if (item.__mergeCols.length > 1) {
                                return true;
                            }
                        })) {
                        BI.each(tds, function (i, item) {
                            var width = item.width() / item.__mergeCols.length;
                            if (i == BI.size(tds) - 1) {
                                width++;
                            }
                            columnSize.push(width);
                        });
                        return true;
                    }
                })) {
                BI.each(this.topRightBodyTds[BI.size(this.topRightBodyTds) - 1], function (i, item) {
                    var width = item.width() / item.__mergeCols.length;
                    if (i == BI.size(self.topRightBodyTds[BI.size(self.topRightBodyTds) - 1]) - 1) {
                        width++;
                    }
                    columnSize.push(width);
                });
            }
        } else {
            BI.each(this.headerTds[BI.size(this.headerTds) - 1], function (i, item) {
                var width = item.width() / item.__mergeCols.length;
                if (i == BI.size(self.headerTds[BI.size(self.headerTds) - 1]) - 1) {
                    width++;
                }
                columnSize.push(width);
            });
        }
        return columnSize;
    },

    setHeaderColumnSize: function (columnSize) {
        var self = this, o = this.options;
        var isRight = this._isRightFreeze();
        if (o.isNeedFreeze) {
            var columnLeft = [];
            var columnRight = [];
            BI.each(columnSize, function (i, size) {
                if (o.freezeCols.contains(i)) {
                    isRight ? columnRight.push(size) : columnLeft.push(size);
                } else {
                    isRight ? columnLeft.push(size) : columnRight.push(size);
                }
            });
            var topleft = 0, topright = 1;
            var run = function (direction) {
                var colgroupTds, bodyTds, bodyItems, sizes;
                switch (direction) {
                    case topleft:
                        colgroupTds = self.topLeftColGroupTds;
                        bodyTds = self.topLeftBodyTds;
                        bodyItems = self.topLeftBodyItems;
                        sizes = columnLeft;
                        break;
                    case topright:
                        colgroupTds = self.topRightColGroupTds;
                        bodyTds = self.topRightBodyTds;
                        bodyItems = self.topRightBodyItems;
                        sizes = columnRight;
                        break;
                }
                BI.each(colgroupTds, function (i, colgroup) {
                    var width = colgroup.attr("width") | 0;
                    if (width !== sizes[i]) {
                        var w = self._calculateWidth(sizes[i]);
                        colgroup.attr("width", w).css("width", w);
                        BI.each(bodyTds, function (j, items) {
                            if (items[i]) {
                                if (items[i].__mergeCols.length > 1) {
                                    var wid = 0;
                                    BI.each(sizes, function (t, s) {
                                        if (items[i].__mergeCols.contains(t)) {
                                            wid += s;
                                        }
                                    });
                                    wid = self._calculateWidth(wid);
                                    if (wid > 1) {
                                        wid += items[i].__mergeCols.length - 1;
                                    }
                                    if (BI.isNumeric(wid)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].attr("width", wid - 1).css("width", wid - 1);
                                        } else {
                                            items[i].attr("width", wid).css("width", wid);
                                        }
                                    } else {
                                        items[i].attr("width", "").css("width", "");
                                    }
                                } else {
                                    if (i == BI.size(items) - 1) {
                                        items[i].attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].attr("width", w).css("width", w);
                                    }
                                }
                            }
                        });
                        BI.each(bodyItems, function (j, items) {
                            if (items[i]) {
                                if (bodyTds[j][i].__mergeCols.length > 1) {
                                    var wid = 0;
                                    BI.each(sizes, function (t, s) {
                                        if (bodyTds[j][i].__mergeCols.contains(t)) {
                                            wid += s;
                                        }
                                    });
                                    wid = self._calculateWidth(wid);
                                    if (wid > 1) {
                                        wid += bodyTds[j][i].__mergeCols.length - 1;
                                    }
                                    if (BI.isNumeric(wid)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                        } else {
                                            items[i].element.attr("width", wid).css("width", wid);
                                        }
                                    } else {
                                        items[i].element.attr("width", "").css("width", "");
                                    }
                                } else {
                                    if (BI.isNumeric(w)) {
                                        if (i == BI.size(items) - 1) {
                                            items[i].element.attr("width", w - 1).css("width", w - 1);
                                        } else {
                                            items[i].element.attr("width", w).css("width", w);
                                        }
                                    } else {
                                        items[i].element.attr("width", "").css("width", "");
                                    }
                                }
                            }
                        });
                    }
                });
            };
            run(topleft);
            run(topright);

            var lw = 0, rw = 0;
            BI.each(columnSize, function (i, size) {
                if (o.freezeCols.contains(i)) {
                    lw += size;
                } else {
                    rw += size;
                }
            });
            lw = this._calculateWidth(lw);
            rw = this._calculateWidth(rw);

            if (BI.isNumeric(lw)) {
                lw = BI.parseFloat(lw) + o.freezeCols.length;
            }
            if (BI.isNumeric(rw)) {
                rw = BI.parseFloat(rw) + columnSize.length - o.freezeCols.length;
            }
            this.topLeftContainer.element.width(isRight ? rw : lw);
            this.topRightContainer.element.width(isRight ? lw : rw);
            this.scrollTopLeft.element[0].scrollLeft = this.scrollBottomLeft.element[0].scrollLeft;
            this.scrollTopRight.element[0].scrollLeft = this.scrollBottomRight.element[0].scrollLeft;
        } else {
            BI.each(this.colgroupTds, function (i, colgroup) {
                var width = colgroup.attr("width") | 0;
                if (width !== columnSize[i]) {
                    var w = self._calculateWidth(columnSize[i]);
                    colgroup.attr("width", w).css("width", w);
                    BI.each(self.headerTds, function (j, items) {
                        if (items[i]) {
                            if (items[i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(columnSize, function (t, s) {
                                    if (items[i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += items[i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                    } else {
                                        items[i].element.attr("width", wid).css("width", wid);
                                    }
                                } else {
                                    items[i].attr("width", "").css("width", "");
                                }
                            } else {
                                if (i == BI.size(items) - 1) {
                                    items[i].attr("width", w - 1).css("width", w - 1);
                                } else {
                                    items[i].attr("width", w).css("width", w);
                                }
                            }
                        }
                    });
                    BI.each(self.headerItems, function (j, items) {
                        if (items[i]) {
                            if (self.headerTds[j][i].__mergeCols.length > 1) {
                                var wid = 0;
                                BI.each(columnSize, function (t, s) {
                                    if (self.headerTds[j][i].__mergeCols.contains(t)) {
                                        wid += s;
                                    }
                                });
                                wid = self._calculateWidth(wid);
                                if (wid > 1) {
                                    wid += self.headerTds[j][i].__mergeCols.length - 1;
                                }
                                if (BI.isNumeric(wid)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", wid - 1).css("width", wid - 1);
                                    } else {
                                        items[i].element.attr("width", wid).css("width", wid);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            } else {
                                if (BI.isNumeric(w)) {
                                    if (i == BI.size(items) - 1) {
                                        items[i].element.attr("width", w - 1).css("width", w - 1);
                                    } else {
                                        items[i].element.attr("width", w).css("width", w);
                                    }
                                } else {
                                    items[i].element.attr("width", "").css("width", "");
                                }
                            }
                        }
                    });
                }
            });
            var cW = this._calculateWidth(BI.sum(columnSize));
            if (cW > 1.05) {
                cW = cW + columnSize.length;
            }
            this.tableContainer.element.width(cW);
        }
    },

    setRegionColumnSize: function (columnSize) {
        var self = this, o = this.options;
        o.regionColumnSize = columnSize;
        if (o.freezeCols.length === 0) {
            if (o.isNeedFreeze) {
                this.partitions.attr("columnSize", this._isRightFreeze() ? ["fill", 0] : [0, "fill"]);
                this.partitions.resize();
            } else {
                this.tableContainer.element.width(columnSize[0]);
            }
        } else if (o.freezeCols.length > 0 && o.freezeCols.length < o.columnSize.length) {
            if (o.isNeedFreeze) {
                this.partitions.attr("columnSize", columnSize);
                this.partitions.resize();
            } else {
                this.tableContainer.element.width(columnSize[0]);
            }
        } else {
            if (o.isNeedFreeze) {
                this.partitions.attr("columnSize", this._isRightFreeze() ? [0, "fill"] : ["fill", 0]);
                this.partitions.resize();
            } else {
                this.tableContainer.element.width(columnSize[0]);
            }
        }
    },

    getRegionColumnSize: function () {
        return this.options.regionColumnSize;
    },

    getCalculateRegionColumnSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return [this.scrollBottomLeft.element.width(), this.scrollBottomRight.element.width()];
        }
        return [this.scrollBottomRight.element.width()];
    },

    getCalculateRegionRowSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return [this.scrollTopRight.element.height(), this.scrollBottomRight.element.height()];
        }
        return [this.scrollBottomRight.element.height()];
    },

    getClientRegionColumnSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return [this.scrollBottomLeft.element[0].clientWidth, this.scrollBottomRight.element[0].clientWidth];
        }
        return [this.scrollBottomRight.element[0].clientWidth];
    },

    getClientRegionRowSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return [this.scrollBottomLeft.element[0].clientHeight, this.scrollBottomRight.element[0].clientHeight];
        }
        return [this.scrollBottomRight.element[0].clientHeight];
    },

    getScrollRegionColumnSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return [this.scrollBottomLeft.element[0].scrollWidth, this.scrollBottomRight.element[0].scrollWidth];
        }
        return [this.scrollBottomRight.element[0].scrollWidth];
    },

    getScrollRegionRowSize: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            if (o.freezeCols.length < o.columnSize.length) {
                return [this.scrollTopRight.element[0].scrollHeight, this.scrollBottomRight.element[0].scrollHeight];
            }
            return [this.scrollTopLeft.element[0].scrollHeight, this.scrollBottomLeft.element[0].scrollHeight];

        }
        return [this.scrollBottomRight.element[0].scrollHeight];
    },

    hasVerticalScroll: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return this.scrollBottomRight.element.hasVerticalScroll() || this.scrollBottomLeft.element.hasVerticalScroll();
        }
        return this.scrollBottomRight.element.hasVerticalScroll();
    },

    setVerticalScroll: function (scrollTop) {
        var o = this.options;
        if (o.isNeedFreeze) {
            if (this.scrollBottomRight.element[0].scrollTop !== scrollTop) {
                this.scrollBottomRight.element[0].scrollTop = scrollTop;
            }
            if (this.scrollBottomLeft.element[0].scrollTop !== scrollTop) {
                this.scrollBottomLeft.element[0].scrollTop = scrollTop;
            }
        } else {
            if (this.scrollBottomRight.element[0].scrollTop !== scrollTop) {
                this.scrollBottomRight.element[0].scrollTop = scrollTop;
            }
        }
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        var o = this.options;
        if (o.isNeedFreeze) {
            if (this.scrollBottomLeft.element[0].scrollLeft !== scrollLeft) {
                this.scrollBottomLeft.element[0].scrollLeft = scrollLeft;
            }
            if (this.scrollTopLeft.element[0].scrollLeft !== scrollLeft) {
                this.scrollTopLeft.element[0].scrollLeft = scrollLeft;
            }
        } else {
            if (this.scrollBottomRight.element[0].scrollLeft !== scrollLeft) {
                this.scrollBottomRight.element[0].scrollLeft = scrollLeft;
            }
        }
    },

    setRightHorizontalScroll: function (scrollLeft) {
        var o = this.options;
        if (o.isNeedFreeze) {
            if (this.scrollBottomRight.element[0].scrollLeft !== scrollLeft) {
                this.scrollBottomRight.element[0].scrollLeft = scrollLeft;
            }
            if (this.scrollTopRight.element[0].scrollLeft !== scrollLeft) {
                this.scrollTopRight.element[0].scrollLeft = scrollLeft;
            }
        } else {
            if (this.scrollBottomRight.element[0].scrollLeft !== scrollLeft) {
                this.scrollBottomRight.element[0].scrollLeft = scrollLeft;
            }
        }
    },

    getVerticalScroll: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return this.scrollBottomRight.element[0].scrollTop || this.scrollBottomLeft.element[0].scrollTop;
        }
        return this.scrollBottomRight.element[0].scrollTop;
    },

    getLeftHorizontalScroll: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return this.scrollBottomLeft.element[0].scrollLeft;
        }
        return this.scrollBottomRight.element[0].scrollLeft;
    },

    getRightHorizontalScroll: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return this.scrollBottomRight.element[0].scrollLeft;
        }
        return this.scrollBottomRight.element[0].scrollLeft;
    },

    getColumns: function () {
        var o = this.options;
        if (o.isNeedFreeze) {
            return {
                topLeft: this.topLeftBodyItems,
                topRight: this.topRightBodyItems,
                bottomLeft: this.bottomLeftBodyItems,
                bottomRight: this.bottomRightBodyItems
            };
        }
        return {
            header: this.headerItems,
            body: this.bodyItems,
            footer: this.footerItems
        };

    },

    _empty: function () {
        this.scrollBottomRight && this.scrollBottomRight.destroy();
        BI.each(this.partitions && this.partitions._children, function (name, child) {
            child && child.destroy();
        });
    },

    populate: function (items, header) {
        this.options.items = items || [];
        if (header) {
            this.options.header = header;
        }
        this._empty();
        if (this.options.isNeedFreeze) {
            this._createFreezeTable();
        } else {
            this._createNormalTable();
        }
    }
})
;
BI.Table.EVENT_TABLE_AFTER_INIT = "EVENT_TABLE_AFTER_INIT";
BI.Table.EVENT_TABLE_RESIZE = "EVENT_TABLE_RESIZE";
BI.Table.EVENT_TABLE_SCROLL = "EVENT_TABLE_SCROLL";
BI.Table.EVENT_TABLE_BEFORE_COLUMN_RESIZE = "EVENT_TABLE_BEFORE_COLUMN_RESIZE";
BI.Table.EVENT_TABLE_COLUMN_RESIZE = "EVENT_TABLE_COLUMN_RESIZE";
BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE = "EVENT_TABLE_AFTER_COLUMN_RESIZE";

BI.Table.EVENT_TABLE_BEFORE_REGION_RESIZE = "EVENT_TABLE_BEFORE_REGION_RESIZE";
BI.Table.EVENT_TABLE_REGION_RESIZE = "EVENT_TABLE_REGION_RESIZE";
BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE = "EVENT_TABLE_AFTER_REGION_RESIZE";
BI.shortcut("bi.table_view", BI.Table);
/**
 *
 * 表格单元格
 *
 * Created by GUY on 2016/1/12.
 * @class BI.ResizableTableCell
 * @extends BI.Widget
 */
BI.ResizableTableCell = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.ResizableTableCell.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-resizable-table-cell",
            cell: {},
            minSize: 15,
            // suitableSize,
            maxSize: Number.MAX_VALUE,
            start: BI.emptyFn,
            resize: BI.emptyFn,
            stop: BI.emptyFn
        });
    },

    _init: function () {
        BI.ResizableTableCell.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.cell = BI.createWidget(BI.extend({type: "bi.label"}, o.cell, {width: o.width, height: o.height}));

        var startDrag = false;
        var size = 0, offset = 0, defaultSize = o.width;

        function optimizeSize (s) {
            var optSize = BI.clamp(s, o.minSize, o.maxSize || Number.MAX_VALUE);
            // if (o.suitableSize) {
            //     if (Math.abs(o.suitableSize - optSize) < 5) {
            //         optSize = o.suitableSize;
            //         self.handler.element.addClass("suitable");
            //     } else {
            //         self.handler.element.removeClass("suitable");
            //     }
            // }
            return optSize;
        }

        var mouseMoveTracker = new BI.MouseMoveTracker(function (deltaX, deltaY) {
            if (mouseMoveTracker.isDragging()) {
                startDrag = true;
                offset += deltaX;
                size = optimizeSize(defaultSize + offset);
                self.handler.element.addClass("dragging");
                o.resize(size);
            }
        }, function () {
            if (startDrag === true) {
                size = optimizeSize(size);
                o.stop(size);
                size = 0;
                offset = 0;
                defaultSize = o.width;
                startDrag = false;
            }
            self.handler.element.removeClass("dragging");
            self.handler.element.removeClass("suitable");
            mouseMoveTracker.releaseMouseMoves();
        }, document);
        this.handler = BI.createWidget({
            type: "bi.absolute",
            cls: "resizable-table-cell-resizer-container",
            width: 6,
            items: [{
                el: {
                    type: "bi.layout",
                    cls: "resizable-table-cell-resizer-knob",
                    width: 4
                },
                right: 0,
                top: 0,
                bottom: 0
            }]
        });
        this.handler.element.on("mousedown", function (event) {
            defaultSize = o.width;
            optimizeSize(defaultSize);
            mouseMoveTracker.captureMouseMoves(event);
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.cell,
                left: 0,
                right: 0,
                top: 0,
                bottom: 0
            }, {
                el: this.handler,
                right: 0,
                top: 0,
                bottom: 0
            }]
        });
    },

    setWidth: function (width) {
        BI.ResizableTableCell.superclass.setWidth.apply(this, arguments);
        var o = this.options;
        this.cell.setWidth(o.width);
    },

    setHeight: function (height) {
        BI.ResizableTableCell.superclass.setHeight.apply(this, arguments);
        var o = this.options;
        this.cell.setHeight(o.height);
    }
});
BI.shortcut("bi.resizable_table_cell", BI.ResizableTableCell);/**
 *
 * 可调整列宽的grid表格
 *
 * Created by GUY on 2016/1/12.
 * @class BI.ResizableTable
 * @extends BI.Widget
 */
BI.ResizableTable = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.ResizableTable.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-resizable-table",
            el: {
                type: "bi.grid_table"
            },
            isNeedFreeze: false,
            isNeedResize: true,
            isResizeAdapt: false,
            headerRowSize: 25,
            rowSize: 25,
            isNeedMerge: true, // 是否需要合并单元格
            mergeCols: [],
            mergeRule: BI.emptyFn,
            columnSize: [],
            minColumnSize: [],
            maxColumnSize: [],
            freezeCols: [],
            header: [],
            items: [],
            regionColumnSize: []
        });
    },

    _init: function () {
        BI.ResizableTable.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.resizer = BI.createWidget({
            type: "bi.layout",
            cls: "resizable-table-resizer",
            invisible: true,
            width: 2
        });
        this.regionResizerHandler = this._createResizerHandler();
        this.table = BI.createWidget(o.el, {
            type: "bi.grid_table",
            element: this,
            width: o.width,
            height: o.height,
            headerRowSize: o.headerRowSize,
            rowSize: o.rowSize,
            columnSize: o.columnSize,

            isNeedFreeze: o.isNeedFreeze,
            freezeCols: o.freezeCols,
            isNeedMerge: o.isNeedMerge,
            mergeCols: o.mergeCols,
            mergeRule: BI.bind(this._mergeRule, this),

            header: this._formatHeader(o.header),
            items: o.items,
            regionColumnSize: o.regionColumnSize
        });
        this.table.on(BI.Table.EVENT_TABLE_SCROLL, function () {
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.regionResizerHandler,
                left: 0,
                top: 0,
                bottom: 0
            }, {
                el: this.resizer,
                left: 0,
                top: 0
            }]
        });
        this._populate();
    },

    _mergeRule: function (row1, row2) {
        var o = this.options;
        if (row1.type === "bi.resizable_table_cell") {
            row1 = row1.cell;
        }
        if (row2.type === "bi.resizable_table_cell") {
            row2 = row2.cell;
        }
        return o.mergeRule(row1, row2);
    },

    _createResizerHandler: function () {
        var self = this, o = this.options;
        var regionResizerHandler = BI.createWidget({
            type: "bi.absolute",
            cls: "resizable-table-region-resizer",
            invisible: true,
            width: 6,
            items: [{
                el: {
                    type: "bi.layout",
                    width: 2,
                    cls: "resizable-table-region-resizer-knob"
                },
                left: 2,
                top: 0,
                bottom: 0
            }]
        });
        var size = 0, offset = 0, defaultSize = 0, start = false;
        var mouseMoveTracker = new BI.MouseMoveTracker(function (deltaX, deltaY) {
            if (mouseMoveTracker.isDragging()) {
                start = true;
                offset += deltaX;
                size = BI.clamp(defaultSize + offset, 30, o.width - 40);

                self.regionResizerHandler.element.addClass("dragging");
                self._setRegionResizerHandlerPosition(size - 3, 0);
            }

        }, function () {
            if (start === true) {
                o.regionColumnSize[0] = BI.clamp(size, 30, o.width - 40);
                self.table.setRegionColumnSize(o.regionColumnSize);
                if (o.isResizeAdapt === true) {
                    var freezeColumnSize = self._getFreezeColumnSize();
                    o.columnSize[self._getFreezeColLength() - 1] += o.regionColumnSize[0] - freezeColumnSize;
                    self.table.setColumnSize(o.columnSize);
                }
                // self.table.populate();
                self._populate();
                self.regionResizerHandler.element.removeClass("dragging");
                self.fireEvent(BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE);
                start = false;
            }
            mouseMoveTracker.releaseMouseMoves();
        }, document);
        regionResizerHandler.element.on("mousedown", function (event) {
            defaultSize = size = self._getRegionSize();
            offset = 0;
            self._setResizerPosition(0, 0);
            mouseMoveTracker.captureMouseMoves(event);
        });
        return regionResizerHandler;
    },

    _setResizerPosition: function (left, top) {
        this.resizer.element.css({
            left: left + "px",
            top: top + "px"
        });
    },

    _setRegionResizerHandlerPosition: function (left, top) {
        this.regionResizerHandler.element.css({
            left: left + "px",
            top: top + "px"
        });
    },

    _getRegionSize: function () {
        var o = this.options;
        var regionSize = o.regionColumnSize[0] || 0;
        if (o.isNeedFreeze === false || o.freezeCols.length === 0) {
            return 0;
        }
        if (!regionSize) {
            BI.each(o.freezeCols, function (i, col) {
                regionSize += o.columnSize[col];
            });
        }
        return regionSize;
    },

    _getRegionRowSize: function () {
        var o = this.options;
        return [o.header.length * o.headerRowSize,
            Math.min(o.height - o.header.length * o.headerRowSize, o.items.length * o.rowSize)];
    },

    _getFreezeColLength: function () {
        var o = this.options;
        return o.isNeedFreeze === true ? BI.clamp(o.freezeCols.length, 0, o.columnSize.length) : 0;
    },

    _getFreezeColumnSize: function () {
        var columnSize = this.options.columnSize;
        var sum = 0;
        for (var i = 0, len = this._getFreezeColLength(); i < len; i++) {
            sum += columnSize[i];
        }
        return sum;
    },

    _getResizerLeft: function (j) {
        var left = 0;
        var columnSize = this.options.columnSize;
        var freezeColLength = this._getFreezeColLength();
        for (var i = (j >= freezeColLength ? freezeColLength : 0); i < j; i++) {
            left += columnSize[i] || 0;
        }
        if (j >= freezeColLength) {
            left += this.table.getRegionSize();
            left -= this.table.getRightHorizontalScroll();
        } else {
            left -= this.table.getLeftHorizontalScroll();
        }
        return left;
    },

    _formatHeader: function (header) {
        var self = this, o = this.options;
        var result = [];
        var resize = function (j, size) {
            self.resizer.setVisible(true);
            var height = o.headerRowSize + self._getRegionRowSize()[1];
            self.resizer.setHeight(height);
            // TODO 不知道为什么加入这段代码会使得列宽调整出问题
            // if (o.minColumnSize[j]) {
            //     if (size === o.minColumnSize[j]) {
            //         self.resizer.element.addClass("suitable");
            //     } else {
            //         self.resizer.element.removeClass("suitable");
            //     }
            // }
            self._setResizerPosition(self._getResizerLeft(j) + size, (o.header.length - 1) * o.headerRowSize);
        };
        var stop = function (j, size) {
            self.resizer.setVisible(false);
            var columnSize = o.columnSize.slice();
            columnSize[j] = size;
            o.columnSize = columnSize;
            self.table.setColumnSize(columnSize);
            // self.table.populate();
            self._populate();
            self.fireEvent(BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE);
        };
        BI.each(header, function (i, cols) {
            if (i === header.length - 1) {
                result[i] = [];
                BI.each(cols, function (j, col) {
                    if (j === self._getFreezeColLength() - 1 || j === cols.length - 1) {
                        result[i][j] = col;
                    } else {
                        result[i][j] = {
                            type: "bi.resizable_table_cell",
                            cell: col,
                            suitableSize: o.minColumnSize[j],
                            maxSize: o.maxColumnSize[j],
                            resize: BI.bind(resize, null, j),
                            stop: BI.bind(stop, null, j)
                        };
                        if (o.isNeedMerge) {
                            var r = i;
                            while (r > 0 && self._mergeRule(result[r][j], result[r - 1][j])) {
                                result[r - 1][j] = {
                                    type: "bi.resizable_table_cell",
                                    cell: result[r - 1][j],
                                    suitableSize: o.minColumnSize[j],
                                    maxSize: o.maxColumnSize[j],
                                    resize: BI.bind(resize, null, j),
                                    stop: BI.bind(stop, null, j)
                                };
                                r--;
                            }
                        }
                    }
                });
            } else {
                result.push(cols);
            }
        });
        return result;
    },

    _populate: function () {
        var o = this.options;
        var regionSize = this._getRegionSize();
        if (regionSize > 0) {
            this.regionResizerHandler.setVisible(true);
            this._setRegionResizerHandlerPosition(regionSize - 3, 0);
        } else {
            this.regionResizerHandler.setVisible(false);
        }
    },

    setWidth: function (width) {
        BI.ResizableTable.superclass.setWidth.apply(this, arguments);
        this.table.setWidth(width);
    },

    setHeight: function (height) {
        BI.ResizableTable.superclass.setHeight.apply(this, arguments);
        this.table.setHeight(height);
    },

    setVerticalScroll: function (scrollTop) {
        this.table.setVerticalScroll(scrollTop);
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        this.table.setLeftHorizontalScroll(scrollLeft);
    },

    setRightHorizontalScroll: function (scrollLeft) {
        this.table.setRightHorizontalScroll(scrollLeft);
    },

    setColumnSize: function (columnSize) {
        this.options.columnSize = columnSize;
        this.table.setColumnSize(columnSize);
    },

    getColumnSize: function () {
        return this.table.getColumnSize();
    },

    setRegionColumnSize: function (columnSize) {
        this.options.regionColumnSize = columnSize;
        this.table.setRegionColumnSize(columnSize);
    },

    getRegionColumnSize: function () {
        return this.table.getRegionColumnSize();
    },

    getVerticalScroll: function () {
        return this.table.getVerticalScroll();
    },

    getLeftHorizontalScroll: function () {
        return this.table.getLeftHorizontalScroll();
    },

    getRightHorizontalScroll: function () {
        return this.table.getRightHorizontalScroll();
    },

    attr: function () {
        BI.ResizableTable.superclass.attr.apply(this, arguments);
        this.table.attr.apply(this.table, arguments);
    },

    restore: function () {
        this.table.restore();
    },

    populate: function (items, header) {
        if (items) {
            this.options.items = items;
        }
        if (header) {
            this.options.header = header;
            if (this.options.isNeedResize) {
                header = this._formatHeader(header);
            }
        }
        this.table.populate(items, header);
        this._populate();
    }
});

BI.shortcut("bi.resizable_table", BI.ResizableTable);/**
 *
 * 自定义树
 *
 * Created by GUY on 2015/9/7.
 * @class BI.CustomTree
 * @extends BI.Single
 */
BI.CustomTree = BI.inherit(BI.Widget, {
    _defaultConfig: function () {
        return BI.extend(BI.CustomTree.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-custom-tree",
            expander: {
                el: {},
                popup: {
                    type: "bi.custom_tree"
                }
            },

            items: [],
            itemsCreator: BI.emptyFn,

            el: {
                type: "bi.button_tree",
                chooseType: 0,
                layouts: [{
                    type: "bi.vertical"
                }]
            }
        });
    },

    _init: function () {
        BI.CustomTree.superclass._init.apply(this, arguments);
        this.initTree(this.options.items);
    },

    _formatItems: function (nodes) {
        var self = this, o = this.options;
        nodes = BI.Tree.transformToTreeFormat(nodes);

        var items = [];
        BI.each(nodes, function (i, node) {
            if (BI.isNotEmptyArray(node.children) || node.isParent === true) {
                var item = BI.extend({
                    type: "bi.expander",
                    el: {
                        value: node.value
                    },
                    popup: {type: "bi.custom_tree"}
                }, BI.deepClone(o.expander), {
                    id: node.id,
                    pId: node.pId
                });
                var el = BI.stripEL(node);
                if (!BI.isWidget(el)) {
                    el = BI.clone(el);
                    delete el.children;
                    BI.extend(item.el, el);
                } else {
                    item.el = el;
                }
                item.popup.expander = BI.deepClone(o.expander);
                item.items = item.popup.items = node.children;
                item.itemsCreator = item.popup.itemsCreator = function (op) {
                    if (BI.isNotNull(op.node)) {// 从子节点传过来的itemsCreator直接向上传递
                        return o.itemsCreator.apply(self, arguments);
                    }
                    var args = Array.prototype.slice.call(arguments, 0);
                    args[0].node = node;
                    return o.itemsCreator.apply(self, args);
                };
                BI.isNull(item.popup.el) && (item.popup.el = BI.deepClone(o.el));
                items.push(item);
            } else {
                items.push(node);
            }
        });
        return items;
    },

    // 构造树结构，
    initTree: function (nodes) {
        var self = this, o = this.options;
        this.tree = BI.createWidget(o.el, {
            element: this,
            items: this._formatItems(nodes),
            itemsCreator: function (op, callback) {
                o.itemsCreator.apply(this, [op, function (items) {
                    var args = Array.prototype.slice.call(arguments, 0);
                    args[0] = self._formatItems(items);
                    callback.apply(null, args);
                }]);
            },
            value: o.value
        });
        this.tree.on(BI.Controller.EVENT_CHANGE, function (type, val, obj) {
            self.fireEvent(BI.Controller.EVENT_CHANGE, arguments);
            if (type === BI.Events.CLICK) {
                self.fireEvent(BI.CustomTree.EVENT_CHANGE, val, obj);
            }
        });
    },

    // 生成树方法
    stroke: function (nodes) {
        this.populate.apply(this, arguments);
    },

    populate: function (nodes) {
        var args = Array.prototype.slice.call(arguments, 0);
        if (arguments.length > 0) {
            args[0] = this._formatItems(nodes);
        }
        this.tree.populate.apply(this.tree, args);
    },

    setValue: function (v) {
        this.tree && this.tree.setValue(v);
    },

    getValue: function () {
        return this.tree ? this.tree.getValue() : [];
    },

    getAllButtons: function () {
        return this.tree ? this.tree.getAllButtons() : [];
    },

    getAllLeaves: function () {
        return this.tree ? this.tree.getAllLeaves() : [];
    },

    getNodeById: function (id) {
        return this.tree && this.tree.getNodeById(id);
    },

    getNodeByValue: function (id) {
        return this.tree && this.tree.getNodeByValue(id);
    },

    empty: function () {
        this.tree.empty();
    }
});
BI.CustomTree.EVENT_CHANGE = "EVENT_CHANGE";

BI.shortcut("bi.custom_tree", BI.CustomTree);/*
 * JQuery zTree core v3.5.18
 * http://zTree.me/
 *
 * Copyright (c) 2010 Hunter.z
 *
 * Licensed same as jquery - MIT License
 * http://www.opensource.org/licenses/mit-license.php
 *
 * email: hunter.z@263.net
 * Date: 2015-06-18
 */
(function($){
	var settings = {}, roots = {}, caches = {},
	//default consts of core
	_consts = {
		className: {
			BUTTON: "button",
			LEVEL: "level",
			ICO_LOADING: "ico_loading",
			SWITCH: "switch"
		},
		event: {
			NODECREATED: "ztree_nodeCreated",
			CLICK: "ztree_click",
			EXPAND: "ztree_expand",
			COLLAPSE: "ztree_collapse",
			ASYNC_SUCCESS: "ztree_async_success",
			ASYNC_ERROR: "ztree_async_error",
			REMOVE: "ztree_remove",
			SELECTED: "ztree_selected",
			UNSELECTED: "ztree_unselected"
		},
		id: {
			A: "_a",
			ICON: "_ico",
			SPAN: "_span",
			SWITCH: "_switch",
			UL: "_ul"
		},
		line: {
			ROOT: "root",
			ROOTS: "roots",
			CENTER: "center",
			BOTTOM: "bottom",
			NOLINE: "noline",
			LINE: "line"
		},
		folder: {
			OPEN: "open",
			CLOSE: "close",
			DOCU: "docu"
		},
		node: {
			CURSELECTED: "curSelectedNode"
		}
	},
	//default setting of core
	_setting = {
		treeId: "",
		treeObj: null,
		view: {
			addDiyDom: null,
			autoCancelSelected: true,
			dblClickExpand: true,
			expandSpeed: "fast",
			fontCss: {},
			nameIsHTML: false,
			selectedMulti: true,
			showIcon: true,
			showLine: true,
			showTitle: true,
			txtSelectedEnable: false
		},
		data: {
			key: {
				children: "children",
				name: "name",
				title: "",
				url: "url"
			},
			simpleData: {
				enable: false,
				idKey: "id",
				pIdKey: "pId",
				rootPId: null
			},
			keep: {
				parent: false,
				leaf: false
			}
		},
		async: {
			enable: false,
			contentType: "application/x-www-form-urlencoded",
			type: "post",
			dataType: "text",
			url: "",
			autoParam: [],
			otherParam: [],
			dataFilter: null
		},
		callback: {
			beforeAsync:null,
			beforeClick:null,
			beforeDblClick:null,
			beforeRightClick:null,
			beforeMouseDown:null,
			beforeMouseUp:null,
			beforeExpand:null,
			beforeCollapse:null,
			beforeRemove:null,

			onAsyncError:null,
			onAsyncSuccess:null,
			onNodeCreated:null,
			onClick:null,
			onDblClick:null,
			onRightClick:null,
			onMouseDown:null,
			onMouseUp:null,
			onExpand:null,
			onCollapse:null,
			onRemove:null
		}
	},
	//default root of core
	//zTree use root to save full data
	_initRoot = function (setting) {
		var r = data.getRoot(setting);
		if (!r) {
			r = {};
			data.setRoot(setting, r);
		}
		r[setting.data.key.children] = [];
		r.expandTriggerFlag = false;
		r.curSelectedList = [];
		r.noSelection = true;
		r.createdNodes = [];
		r.zId = 0;
		r._ver = (new Date()).getTime();
	},
	//default cache of core
	_initCache = function(setting) {
		var c = data.getCache(setting);
		if (!c) {
			c = {};
			data.setCache(setting, c);
		}
		c.nodes = [];
		c.doms = [];
	},
	//default bindEvent of core
	_bindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.bind(c.NODECREATED, function (event, treeId, node) {
			tools.apply(setting.callback.onNodeCreated, [event, treeId, node]);
		});

		o.bind(c.CLICK, function (event, srcEvent, treeId, node, clickFlag) {
			tools.apply(setting.callback.onClick, [srcEvent, treeId, node, clickFlag]);
		});

		o.bind(c.EXPAND, function (event, treeId, node) {
			tools.apply(setting.callback.onExpand, [event, treeId, node]);
		});

		o.bind(c.COLLAPSE, function (event, treeId, node) {
			tools.apply(setting.callback.onCollapse, [event, treeId, node]);
		});

		o.bind(c.ASYNC_SUCCESS, function (event, treeId, node, msg) {
			tools.apply(setting.callback.onAsyncSuccess, [event, treeId, node, msg]);
		});

		o.bind(c.ASYNC_ERROR, function (event, treeId, node, XMLHttpRequest, textStatus, errorThrown) {
			tools.apply(setting.callback.onAsyncError, [event, treeId, node, XMLHttpRequest, textStatus, errorThrown]);
		});

		o.bind(c.REMOVE, function (event, treeId, treeNode) {
			tools.apply(setting.callback.onRemove, [event, treeId, treeNode]);
		});

		o.bind(c.SELECTED, function (event, srcEvent, treeId, node) {
			tools.apply(setting.callback.onSelected, [srcEvent, treeId, node]);
		});
		o.bind(c.UNSELECTED, function (event, srcEvent, treeId, node) {
			tools.apply(setting.callback.onUnSelected, [srcEvent, treeId, node]);
		});
	},
	_unbindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.unbind(c.NODECREATED)
		.unbind(c.CLICK)
		.unbind(c.EXPAND)
		.unbind(c.COLLAPSE)
		.unbind(c.ASYNC_SUCCESS)
		.unbind(c.ASYNC_ERROR)
		.unbind(c.REMOVE)
		.unbind(c.SELECTED)
		.unbind(c.UNSELECTED);
	},
	//default event proxy of core
	_eventProxy = function(event) {
		var target = event.target,
		setting = data.getSetting(event.data.treeId),
		tId = "", node = null,
		nodeEventType = "", treeEventType = "",
		nodeEventCallback = null, treeEventCallback = null,
		tmp = null;

		if (tools.eqs(event.type, "mousedown")) {
			treeEventType = "mousedown";
		} else if (tools.eqs(event.type, "mouseup")) {
			treeEventType = "mouseup";
		} else if (tools.eqs(event.type, "contextmenu")) {
			treeEventType = "contextmenu";
		} else if (tools.eqs(event.type, "click")) {
			if (tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.SWITCH) !== null) {
				tId = tools.getNodeMainDom(target).id;
				nodeEventType = "switchNode";
			} else {
				tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
				if (tmp) {
					tId = tools.getNodeMainDom(tmp).id;
					nodeEventType = "clickNode";
				}
			}
		} else if (tools.eqs(event.type, "dblclick")) {
			treeEventType = "dblclick";
			tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
			if (tmp) {
				tId = tools.getNodeMainDom(tmp).id;
				nodeEventType = "switchNode";
			}
		}
		if (treeEventType.length > 0 && tId.length == 0) {
			tmp = tools.getMDom(setting, target, [{tagName:"a", attrName:"treeNode"+consts.id.A}]);
			if (tmp) {tId = tools.getNodeMainDom(tmp).id;}
		}
		// event to node
		if (tId.length>0) {
			node = data.getNodeCache(setting, tId);
			switch (nodeEventType) {
				case "switchNode" :
					if (!node.isParent) {
						nodeEventType = "";
					} else if (tools.eqs(event.type, "click")
						|| (tools.eqs(event.type, "dblclick") && tools.apply(setting.view.dblClickExpand, [setting.treeId, node], setting.view.dblClickExpand))) {
						nodeEventCallback = handler.onSwitchNode;
					} else {
						nodeEventType = "";
					}
					break;
				case "clickNode" :
					nodeEventCallback = handler.onClickNode;
					break;
			}
		}
		// event to zTree
		switch (treeEventType) {
			case "mousedown" :
				treeEventCallback = handler.onZTreeMousedown;
				break;
			case "mouseup" :
				treeEventCallback = handler.onZTreeMouseup;
				break;
			case "dblclick" :
				treeEventCallback = handler.onZTreeDblclick;
				break;
			case "contextmenu" :
				treeEventCallback = handler.onZTreeContextmenu;
				break;
		}
		var proxyResult = {
			stop: false,
			node: node,
			nodeEventType: nodeEventType,
			nodeEventCallback: nodeEventCallback,
			treeEventType: treeEventType,
			treeEventCallback: treeEventCallback
		};
		return proxyResult
	},
	//default init node of core
	_initNode = function(setting, level, n, parentNode, isFirstNode, isLastNode, openFlag) {
		if (!n) return;
		var r = data.getRoot(setting),
		childKey = setting.data.key.children;
		n.level = level;
		n.tId = setting.treeId + "_" + (++r.zId);
		n.parentTId = parentNode ? parentNode.tId : null;
		n.open = (typeof n.open == "string") ? tools.eqs(n.open, "true") : !!n.open;
		if (n[childKey] && n[childKey].length > 0) {
			n.isParent = true;
			n.zAsync = true;
		} else {
			n.isParent = (typeof n.isParent == "string") ? tools.eqs(n.isParent, "true") : !!n.isParent;
			n.open = (n.isParent && !setting.async.enable) ? n.open : false;
			n.zAsync = !n.isParent;
		}
		n.isFirstNode = isFirstNode;
		n.isLastNode = isLastNode;
		n.getParentNode = function() {return data.getNodeCache(setting, n.parentTId);};
		n.getPreNode = function() {return data.getPreNode(setting, n);};
		n.getNextNode = function() {return data.getNextNode(setting, n);};
		n.isAjaxing = false;
		data.fixPIdKeyValue(setting, n);
	},
	_init = {
		bind: [_bindEvent],
		unbind: [_unbindEvent],
		caches: [_initCache],
		nodes: [_initNode],
		proxys: [_eventProxy],
		roots: [_initRoot],
		beforeA: [],
		afterA: [],
		innerBeforeA: [],
		innerAfterA: [],
		zTreeTools: []
	},
	//method of operate data
	data = {
		addNodeCache: function(setting, node) {
			data.getCache(setting).nodes[data.getNodeCacheId(node.tId)] = node;
		},
		getNodeCacheId: function(tId) {
			return tId.substring(tId.lastIndexOf("_")+1);
		},
		addAfterA: function(afterA) {
			_init.afterA.push(afterA);
		},
		addBeforeA: function(beforeA) {
			_init.beforeA.push(beforeA);
		},
		addInnerAfterA: function(innerAfterA) {
			_init.innerAfterA.push(innerAfterA);
		},
		addInnerBeforeA: function(innerBeforeA) {
			_init.innerBeforeA.push(innerBeforeA);
		},
		addInitBind: function(bindEvent) {
			_init.bind.push(bindEvent);
		},
		addInitUnBind: function(unbindEvent) {
			_init.unbind.push(unbindEvent);
		},
		addInitCache: function(initCache) {
			_init.caches.push(initCache);
		},
		addInitNode: function(initNode) {
			_init.nodes.push(initNode);
		},
		addInitProxy: function(initProxy, isFirst) {
			if (!!isFirst) {
				_init.proxys.splice(0,0,initProxy);
			} else {
				_init.proxys.push(initProxy);
			}
		},
		addInitRoot: function(initRoot) {
			_init.roots.push(initRoot);
		},
		addNodesData: function(setting, parentNode, nodes) {
			var childKey = setting.data.key.children;
			if (!parentNode[childKey]) parentNode[childKey] = [];
			if (parentNode[childKey].length > 0) {
				parentNode[childKey][parentNode[childKey].length - 1].isLastNode = false;
				view.setNodeLineIcos(setting, parentNode[childKey][parentNode[childKey].length - 1]);
			}
			parentNode.isParent = true;
			parentNode[childKey] = parentNode[childKey].concat(nodes);
		},
		addSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			if (!data.isSelectedNode(setting, node)) {
				root.curSelectedList.push(node);
			}
		},
		addCreatedNode: function(setting, node) {
			if (!!setting.callback.onNodeCreated || !!setting.view.addDiyDom) {
				var root = data.getRoot(setting);
				root.createdNodes.push(node);
			}
		},
		addZTreeTools: function(zTreeTools) {
			_init.zTreeTools.push(zTreeTools);
		},
		exSetting: function(s) {
			$.extend(true, _setting, s);
		},
		fixPIdKeyValue: function(setting, node) {
			if (setting.data.simpleData.enable) {
				node[setting.data.simpleData.pIdKey] = node.parentTId ? node.getParentNode()[setting.data.simpleData.idKey] : setting.data.simpleData.rootPId;
			}
		},
		getAfterA: function(setting, node, array) {
			for (var i=0, j=_init.afterA.length; i<j; i++) {
				_init.afterA[i].apply(this, arguments);
			}
		},
		getBeforeA: function(setting, node, array) {
			for (var i=0, j=_init.beforeA.length; i<j; i++) {
				_init.beforeA[i].apply(this, arguments);
			}
		},
		getInnerAfterA: function(setting, node, array) {
			for (var i=0, j=_init.innerAfterA.length; i<j; i++) {
				_init.innerAfterA[i].apply(this, arguments);
			}
		},
		getInnerBeforeA: function(setting, node, array) {
			for (var i=0, j=_init.innerBeforeA.length; i<j; i++) {
				_init.innerBeforeA[i].apply(this, arguments);
			}
		},
		getCache: function(setting) {
			return caches[setting.treeId];
		},
		getNextNode: function(setting, node) {
			if (!node) return null;
			var childKey = setting.data.key.children,
			p = node.parentTId ? node.getParentNode() : data.getRoot(setting);
			for (var i=0, l=p[childKey].length-1; i<=l; i++) {
				if (p[childKey][i] === node) {
					return (i==l ? null : p[childKey][i+1]);
				}
			}
			return null;
		},
		getNodeByParam: function(setting, nodes, key, value) {
			if (!nodes || !key) return null;
			var childKey = setting.data.key.children;
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i][key] == value) {
					return nodes[i];
				}
				var tmp = data.getNodeByParam(setting, nodes[i][childKey], key, value);
				if (tmp) return tmp;
			}
			return null;
		},
		getNodeCache: function(setting, tId) {
			if (!tId) return null;
			var n = caches[setting.treeId].nodes[data.getNodeCacheId(tId)];
			return n ? n : null;
		},
		getNodeName: function(setting, node) {
			var nameKey = setting.data.key.name;
			return "" + node[nameKey];
		},
		getNodeTitle: function(setting, node) {
			var t = setting.data.key.title === "" ? setting.data.key.name : setting.data.key.title;
			return "" + node[t];
		},
		getNodes: function(setting) {
			return data.getRoot(setting)[setting.data.key.children];
		},
		getNodesByParam: function(setting, nodes, key, value) {
			if (!nodes || !key) return [];
			var childKey = setting.data.key.children,
			result = [];
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i][key] == value) {
					result.push(nodes[i]);
				}
				result = result.concat(data.getNodesByParam(setting, nodes[i][childKey], key, value));
			}
			return result;
		},
		getNodesByParamFuzzy: function(setting, nodes, key, value) {
			if (!nodes || !key) return [];
			var childKey = setting.data.key.children,
			result = [];
			value = value.toLowerCase();
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (typeof nodes[i][key] == "string" && nodes[i][key].toLowerCase().indexOf(value)>-1) {
					result.push(nodes[i]);
				}
				result = result.concat(data.getNodesByParamFuzzy(setting, nodes[i][childKey], key, value));
			}
			return result;
		},
		getNodesByFilter: function(setting, nodes, filter, isSingle, invokeParam) {
			if (!nodes) return (isSingle ? null : []);
			var childKey = setting.data.key.children,
			result = isSingle ? null : [];
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (tools.apply(filter, [nodes[i], invokeParam], false)) {
					if (isSingle) {return nodes[i];}
					result.push(nodes[i]);
				}
				var tmpResult = data.getNodesByFilter(setting, nodes[i][childKey], filter, isSingle, invokeParam);
				if (isSingle && !!tmpResult) {return tmpResult;}
				result = isSingle ? tmpResult : result.concat(tmpResult);
			}
			return result;
		},
		getPreNode: function(setting, node) {
			if (!node) return null;
			var childKey = setting.data.key.children,
			p = node.parentTId ? node.getParentNode() : data.getRoot(setting);
			for (var i=0, l=p[childKey].length; i<l; i++) {
				if (p[childKey][i] === node) {
					return (i==0 ? null : p[childKey][i-1]);
				}
			}
			return null;
		},
		getRoot: function(setting) {
			return setting ? roots[setting.treeId] : null;
		},
		getRoots: function() {
			return roots;
		},
		getSetting: function(treeId) {
			return settings[treeId];
		},
		getSettings: function() {
			return settings;
		},
		getZTreeTools: function(treeId) {
			var r = this.getRoot(this.getSetting(treeId));
			return r ? r.treeTools : null;
		},
		initCache: function(setting) {
			for (var i=0, j=_init.caches.length; i<j; i++) {
				_init.caches[i].apply(this, arguments);
			}
		},
		initNode: function(setting, level, node, parentNode, preNode, nextNode) {
			for (var i=0, j=_init.nodes.length; i<j; i++) {
				_init.nodes[i].apply(this, arguments);
			}
		},
		initRoot: function(setting) {
			for (var i=0, j=_init.roots.length; i<j; i++) {
				_init.roots[i].apply(this, arguments);
			}
		},
		isSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			for (var i=0, j=root.curSelectedList.length; i<j; i++) {
				if(node === root.curSelectedList[i]) return true;
			}
			return false;
		},
		removeNodeCache: function(setting, node) {
			var childKey = setting.data.key.children;
			if (node[childKey]) {
				for (var i=0, l=node[childKey].length; i<l; i++) {
					arguments.callee(setting, node[childKey][i]);
				}
			}
			data.getCache(setting).nodes[data.getNodeCacheId(node.tId)] = null;
		},
		removeSelectedNode: function(setting, node) {
			var root = data.getRoot(setting);
			for (var i=0, j=root.curSelectedList.length; i<j; i++) {
				if(node === root.curSelectedList[i] || !data.getNodeCache(setting, root.curSelectedList[i].tId)) {
					root.curSelectedList.splice(i, 1);
					i--;j--;
				}
			}
		},
		setCache: function(setting, cache) {
			caches[setting.treeId] = cache;
		},
		setRoot: function(setting, root) {
			roots[setting.treeId] = root;
		},
		setZTreeTools: function(setting, zTreeTools) {
			for (var i=0, j=_init.zTreeTools.length; i<j; i++) {
				_init.zTreeTools[i].apply(this, arguments);
			}
		},
		transformToArrayFormat: function (setting, nodes) {
			if (!nodes) return [];
			var childKey = setting.data.key.children,
			r = [];
			if (tools.isArray(nodes)) {
				for (var i=0, l=nodes.length; i<l; i++) {
					r.push(nodes[i]);
					if (nodes[i][childKey])
						r = r.concat(data.transformToArrayFormat(setting, nodes[i][childKey]));
				}
			} else {
				r.push(nodes);
				if (nodes[childKey])
					r = r.concat(data.transformToArrayFormat(setting, nodes[childKey]));
			}
			return r;
		},
		transformTozTreeFormat: function(setting, sNodes) {
			var i,l,
			key = setting.data.simpleData.idKey,
			parentKey = setting.data.simpleData.pIdKey,
			childKey = setting.data.key.children;
			if (!key || key=="" || !sNodes) return [];

			if (tools.isArray(sNodes)) {
				var r = [];
				var tmpMap = [];
				for (i=0, l=sNodes.length; i<l; i++) {
					tmpMap[sNodes[i][key]] = sNodes[i];
				}
				for (i=0, l=sNodes.length; i<l; i++) {
					if (tmpMap[sNodes[i][parentKey]] && sNodes[i][key] != sNodes[i][parentKey]) {
						if (!tmpMap[sNodes[i][parentKey]][childKey])
							tmpMap[sNodes[i][parentKey]][childKey] = [];
						tmpMap[sNodes[i][parentKey]][childKey].push(sNodes[i]);
					} else {
						r.push(sNodes[i]);
					}
				}
				return r;
			}else {
				return [sNodes];
			}
		}
	},
	//method of event proxy
	event = {
		bindEvent: function(setting) {
			for (var i=0, j=_init.bind.length; i<j; i++) {
				_init.bind[i].apply(this, arguments);
			}
		},
		unbindEvent: function(setting) {
			for (var i=0, j=_init.unbind.length; i<j; i++) {
				_init.unbind[i].apply(this, arguments);
			}
		},
		bindTree: function(setting) {
			var eventParam = {
				treeId: setting.treeId
			},
			o = setting.treeObj;
			if (!setting.view.txtSelectedEnable) {
				// for can't select text
				o.bind('selectstart', function(e){
					var node
					var n = e.originalEvent.srcElement.nodeName.toLowerCase();
					return (n === "input" || n === "textarea" );
				}).css({
					"-moz-user-select":"-moz-none"
				});
			}
			o.bind('click', eventParam, event.proxy);
			o.bind('dblclick', eventParam, event.proxy);
			o.bind('mouseover', eventParam, event.proxy);
			o.bind('mouseout', eventParam, event.proxy);
			o.bind('mousedown', eventParam, event.proxy);
			o.bind('mouseup', eventParam, event.proxy);
			o.bind('contextmenu', eventParam, event.proxy);
		},
		unbindTree: function(setting) {
			var o = setting.treeObj;
			o.unbind('click', event.proxy)
			.unbind('dblclick', event.proxy)
			.unbind('mouseover', event.proxy)
			.unbind('mouseout', event.proxy)
			.unbind('mousedown', event.proxy)
			.unbind('mouseup', event.proxy)
			.unbind('contextmenu', event.proxy);
		},
		doProxy: function(e) {
			var results = [];
			for (var i=0, j=_init.proxys.length; i<j; i++) {
				var proxyResult = _init.proxys[i].apply(this, arguments);
				results.push(proxyResult);
				if (proxyResult.stop) {
					break;
				}
			}
			return results;
		},
		proxy: function(e) {
			var setting = data.getSetting(e.data.treeId);
			if (!tools.uCanDo(setting, e)) return true;
			var results = event.doProxy(e),
			r = true, x = false;
			for (var i=0, l=results.length; i<l; i++) {
				var proxyResult = results[i];
				if (proxyResult.nodeEventCallback) {
					x = true;
					r = proxyResult.nodeEventCallback.apply(proxyResult, [e, proxyResult.node]) && r;
				}
				if (proxyResult.treeEventCallback) {
					x = true;
					r = proxyResult.treeEventCallback.apply(proxyResult, [e, proxyResult.node]) && r;
				}
			}
			return r;
		}
	},
	//method of event handler
	handler = {
		onSwitchNode: function (event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (node.open) {
				if (tools.apply(setting.callback.beforeCollapse, [setting.treeId, node], true) == false) return true;
				data.getRoot(setting).expandTriggerFlag = true;
				view.switchNode(setting, node);
			} else {
				if (tools.apply(setting.callback.beforeExpand, [setting.treeId, node], true) == false) return true;
				data.getRoot(setting).expandTriggerFlag = true;
				view.switchNode(setting, node);
			}
			return true;
		},
		onClickNode: function (event, node) {
			var setting = data.getSetting(event.data.treeId),
			clickFlag = ( (setting.view.autoCancelSelected && (event.ctrlKey || event.metaKey)) && data.isSelectedNode(setting, node)) ? 0 : (setting.view.autoCancelSelected && (event.ctrlKey || event.metaKey) && setting.view.selectedMulti) ? 2 : 1;
			if (tools.apply(setting.callback.beforeClick, [setting.treeId, node, clickFlag], true) == false) return true;
			if (clickFlag === 0) {
				view.cancelPreSelectedNode(setting, node);
			} else {
				view.selectNode(setting, node, clickFlag === 2);
			}
			setting.treeObj.trigger(consts.event.CLICK, [event, setting.treeId, node, clickFlag]);
			return true;
		},
		onZTreeMousedown: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeMouseDown, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onMouseDown, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeMouseup: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeMouseUp, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onMouseUp, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeDblclick: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeDblClick, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onDblClick, [event, setting.treeId, node]);
			}
			return true;
		},
		onZTreeContextmenu: function(event, node) {
			var setting = data.getSetting(event.data.treeId);
			if (tools.apply(setting.callback.beforeRightClick, [setting.treeId, node], true)) {
				tools.apply(setting.callback.onRightClick, [event, setting.treeId, node]);
			}
			return (typeof setting.callback.onRightClick) != "function";
		}
	},
	//method of tools for zTree
	tools = {
		apply: function(fun, param, defaultValue) {
			if ((typeof fun) == "function") {
				return fun.apply(zt, param?param:[]);
			}
			return defaultValue;
		},
		canAsync: function(setting, node) {
			var childKey = setting.data.key.children;
			return (setting.async.enable && node && node.isParent && !(node.zAsync || (node[childKey] && node[childKey].length > 0)));
		},
		clone: function (obj){
			if (obj === null) return null;
			var o = tools.isArray(obj) ? [] : {};
			for(var i in obj){
				o[i] = (obj[i] instanceof Date) ? new Date(obj[i].getTime()) : (typeof obj[i] === "object" ? arguments.callee(obj[i]) : obj[i]);
			}
			return o;
		},
		eqs: function(str1, str2) {
			return str1.toLowerCase() === str2.toLowerCase();
		},
		isArray: function(arr) {
			return Object.prototype.toString.apply(arr) === "[object Array]";
		},
		$: function(node, exp, setting) {
			if (!!exp && typeof exp != "string") {
				setting = exp;
				exp = "";
			}
			if (typeof node == "string") {
				return $(node, setting ? setting.treeObj.get(0).ownerDocument : null);
			} else {
				return $("#" + node.tId + exp, setting ? setting.treeObj : null);
			}
		},
		getMDom: function (setting, curDom, targetExpr) {
			if (!curDom) return null;
			while (curDom && curDom.id !== setting.treeId) {
				for (var i=0, l=targetExpr.length; curDom.tagName && i<l; i++) {
					if (tools.eqs(curDom.tagName, targetExpr[i].tagName) && curDom.getAttribute(targetExpr[i].attrName) !== null) {
						return curDom;
					}
				}
				curDom = curDom.parentNode;
			}
			return null;
		},
		getNodeMainDom:function(target) {
			return ($(target).parent("li").get(0) || $(target).parentsUntil("li").parent().get(0));
		},
		isChildOrSelf: function(dom, parentId) {
			return ( $(dom).closest("#" + parentId).length> 0 );
		},
		uCanDo: function(setting, e) {
			return true;
		}
	},
	//method of operate ztree dom
	view = {
		addNodes: function(setting, parentNode, newNodes, isSilent) {
			if (setting.data.keep.leaf && parentNode && !parentNode.isParent) {
				return;
			}
			if (!tools.isArray(newNodes)) {
				newNodes = [newNodes];
			}
			if (setting.data.simpleData.enable) {
				newNodes = data.transformTozTreeFormat(setting, newNodes);
			}
			if (parentNode) {
				var target_switchObj = $$(parentNode, consts.id.SWITCH, setting),
				target_icoObj = $$(parentNode, consts.id.ICON, setting),
				target_ulObj = $$(parentNode, consts.id.UL, setting);

				if (!parentNode.open) {
					view.replaceSwitchClass(parentNode, target_switchObj, consts.folder.CLOSE);
					view.replaceIcoClass(parentNode, target_icoObj, consts.folder.CLOSE);
					parentNode.open = false;
					target_ulObj.css({
						"display": "none"
					});
				}

				data.addNodesData(setting, parentNode, newNodes);
				view.createNodes(setting, parentNode.level + 1, newNodes, parentNode);
				if (!isSilent) {
					view.expandCollapseParentNode(setting, parentNode, true);
				}
			} else {
				data.addNodesData(setting, data.getRoot(setting), newNodes);
				view.createNodes(setting, 0, newNodes, null);
			}
		},
		appendNodes: function(setting, level, nodes, parentNode, initFlag, openFlag) {
			if (!nodes) return [];
			var html = [],
			childKey = setting.data.key.children;
			for (var i = 0, l = nodes.length; i < l; i++) {
				var node = nodes[i];
				if (initFlag) {
					var tmpPNode = (parentNode) ? parentNode: data.getRoot(setting),
					tmpPChild = tmpPNode[childKey],
					isFirstNode = ((tmpPChild.length == nodes.length) && (i == 0)),
					isLastNode = (i == (nodes.length - 1));
					data.initNode(setting, level, node, parentNode, isFirstNode, isLastNode, openFlag);
					data.addNodeCache(setting, node);
				}

				var childHtml = [];
				if (node[childKey] && node[childKey].length > 0) {
					//make child html first, because checkType
					childHtml = view.appendNodes(setting, level + 1, node[childKey], node, initFlag, openFlag && node.open);
				}
				if (openFlag) {

					view.makeDOMNodeMainBefore(html, setting, node);
					view.makeDOMNodeLine(html, setting, node);
					data.getBeforeA(setting, node, html);
					view.makeDOMNodeNameBefore(html, setting, node);
					data.getInnerBeforeA(setting, node, html);
					view.makeDOMNodeIcon(html, setting, node);
					data.getInnerAfterA(setting, node, html);
					view.makeDOMNodeNameAfter(html, setting, node);
					data.getAfterA(setting, node, html);
					if (node.isParent && node.open) {
						view.makeUlHtml(setting, node, html, childHtml.join(''));
					}
					view.makeDOMNodeMainAfter(html, setting, node);
					data.addCreatedNode(setting, node);
				}
			}
			return html;
		},
		appendParentULDom: function(setting, node) {
			var html = [],
			nObj = $$(node, setting);
			if (!nObj.get(0) && !!node.parentTId) {
				view.appendParentULDom(setting, node.getParentNode());
				nObj = $$(node, setting);
			}
			var ulObj = $$(node, consts.id.UL, setting);
			if (ulObj.get(0)) {
				ulObj.remove();
			}
			var childKey = setting.data.key.children,
			childHtml = view.appendNodes(setting, node.level+1, node[childKey], node, false, true);
			view.makeUlHtml(setting, node, html, childHtml.join(''));
			nObj.append(html.join(''));
		},
		asyncNode: function(setting, node, isSilent, callback) {
			var i, l;
			if (node && !node.isParent) {
				tools.apply(callback);
				return false;
			} else if (node && node.isAjaxing) {
				return false;
			} else if (tools.apply(setting.callback.beforeAsync, [setting.treeId, node], true) == false) {
				tools.apply(callback);
				return false;
			}
			if (node) {
				node.isAjaxing = true;
				var icoObj = $$(node, consts.id.ICON, setting);
				icoObj.attr({"style":"", "class":consts.className.BUTTON + " " + consts.className.ICO_LOADING});
			}

			var tmpParam = {};
			for (i = 0, l = setting.async.autoParam.length; node && i < l; i++) {
				var pKey = setting.async.autoParam[i].split("="), spKey = pKey;
				if (pKey.length>1) {
					spKey = pKey[1];
					pKey = pKey[0];
				}
				tmpParam[spKey] = node[pKey];
			}
			if (tools.isArray(setting.async.otherParam)) {
				for (i = 0, l = setting.async.otherParam.length; i < l; i += 2) {
					tmpParam[setting.async.otherParam[i]] = setting.async.otherParam[i + 1];
				}
			} else {
				for (var p in setting.async.otherParam) {
					tmpParam[p] = setting.async.otherParam[p];
				}
			}

			var _tmpV = data.getRoot(setting)._ver;
			$.ajax({
				contentType: setting.async.contentType,
                cache: false,
				type: setting.async.type,
				url: tools.apply(setting.async.url, [setting.treeId, node], setting.async.url),
				data: tmpParam,
				dataType: setting.async.dataType,
				success: function(msg) {
					if (_tmpV != data.getRoot(setting)._ver) {
						return;
					}
					var newNodes = [];
					try {
						if (!msg || msg.length == 0) {
							newNodes = [];
						} else if (typeof msg == "string") {
							newNodes = eval("(" + msg + ")");
						} else {
							newNodes = msg;
						}
					} catch(err) {
						newNodes = msg;
					}

					if (node) {
						node.isAjaxing = null;
						node.zAsync = true;
					}
					view.setNodeLineIcos(setting, node);
					if (newNodes && newNodes !== "") {
						newNodes = tools.apply(setting.async.dataFilter, [setting.treeId, node, newNodes], newNodes);
						view.addNodes(setting, node, !!newNodes ? tools.clone(newNodes) : [], !!isSilent);
					} else {
						view.addNodes(setting, node, [], !!isSilent);
					}
					setting.treeObj.trigger(consts.event.ASYNC_SUCCESS, [setting.treeId, node, msg]);
					tools.apply(callback);
				},
				error: function(XMLHttpRequest, textStatus, errorThrown) {
					if (_tmpV != data.getRoot(setting)._ver) {
						return;
					}
					if (node) node.isAjaxing = null;
					view.setNodeLineIcos(setting, node);
					setting.treeObj.trigger(consts.event.ASYNC_ERROR, [setting.treeId, node, XMLHttpRequest, textStatus, errorThrown]);
				}
			});
			return true;
		},
		cancelPreSelectedNode: function (setting, node, excludeNode) {
			var list = data.getRoot(setting).curSelectedList,
				i, n;
			for (i=list.length-1; i>=0; i--) {
				n = list[i];
				if (node === n || (!node && (!excludeNode || excludeNode !== n))) {
					$$(n, consts.id.A, setting).removeClass(consts.node.CURSELECTED);
					if (node) {
						data.removeSelectedNode(setting, node);
						setting.treeObj.trigger(consts.event.UNSELECTED, [event, setting.treeId, n]);
						break;
					} else {
						list.splice(i, 1);
						setting.treeObj.trigger(consts.event.UNSELECTED, [event, setting.treeId, n]);
					}
				}
			}
		},
		createNodeCallback: function(setting) {
			if (!!setting.callback.onNodeCreated || !!setting.view.addDiyDom) {
				var root = data.getRoot(setting);
				while (root.createdNodes.length>0) {
					var node = root.createdNodes.shift();
					tools.apply(setting.view.addDiyDom, [setting.treeId, node]);
					if (!!setting.callback.onNodeCreated) {
						setting.treeObj.trigger(consts.event.NODECREATED, [setting.treeId, node]);
					}
				}
			}
		},
		createNodes: function(setting, level, nodes, parentNode) {
			if (!nodes || nodes.length == 0) return;
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			openFlag = !parentNode || parentNode.open || !!$$(parentNode[childKey][0], setting).get(0);
			root.createdNodes = [];
			var zTreeHtml = view.appendNodes(setting, level, nodes, parentNode, true, openFlag);
			if (!parentNode) {
				setting.treeObj.append(zTreeHtml.join(''));
			} else {
				var ulObj = $$(parentNode, consts.id.UL, setting);
				if (ulObj.get(0)) {
					ulObj.append(zTreeHtml.join(''));
				}
			}
			view.createNodeCallback(setting);
		},
		destroy: function(setting) {
			if (!setting) return;
			data.initCache(setting);
			data.initRoot(setting);
			event.unbindTree(setting);
			event.unbindEvent(setting);
			setting.treeObj.empty();
			delete settings[setting.treeId];
		},
		expandCollapseNode: function(setting, node, expandFlag, animateFlag, callback) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children;
			if (!node) {
				tools.apply(callback, []);
				return;
			}
			if (root.expandTriggerFlag) {
				var _callback = callback;
				callback = function(){
					if (_callback) _callback();
					if (node.open) {
						setting.treeObj.trigger(consts.event.EXPAND, [setting.treeId, node]);
					} else {
						setting.treeObj.trigger(consts.event.COLLAPSE, [setting.treeId, node]);
					}
				};
				root.expandTriggerFlag = false;
			}
			if (!node.open && node.isParent && ((!$$(node, consts.id.UL, setting).get(0)) || (node[childKey] && node[childKey].length>0 && !$$(node[childKey][0], setting).get(0)))) {
				view.appendParentULDom(setting, node);
				view.createNodeCallback(setting);
			}
			if (node.open == expandFlag) {
				tools.apply(callback, []);
				return;
			}
			var ulObj = $$(node, consts.id.UL, setting),
			switchObj = $$(node, consts.id.SWITCH, setting),
			icoObj = $$(node, consts.id.ICON, setting);

			if (node.isParent) {
				node.open = !node.open;
				if (node.iconOpen && node.iconClose) {
					icoObj.attr("style", view.makeNodeIcoStyle(setting, node));
				}

				if (node.open) {
					view.replaceSwitchClass(node, switchObj, consts.folder.OPEN);
					view.replaceIcoClass(node, icoObj, consts.folder.OPEN);
					if (animateFlag == false || setting.view.expandSpeed == "") {
						ulObj.show();
						tools.apply(callback, []);
					} else {
						if (node[childKey] && node[childKey].length > 0) {
							ulObj.slideDown(setting.view.expandSpeed, callback);
						} else {
							ulObj.show();
							tools.apply(callback, []);
						}
					}
				} else {
					view.replaceSwitchClass(node, switchObj, consts.folder.CLOSE);
					view.replaceIcoClass(node, icoObj, consts.folder.CLOSE);
					if (animateFlag == false || setting.view.expandSpeed == "" || !(node[childKey] && node[childKey].length > 0)) {
						ulObj.hide();
						tools.apply(callback, []);
					} else {
						ulObj.slideUp(setting.view.expandSpeed, callback);
					}
				}
			} else {
				tools.apply(callback, []);
			}
		},
		expandCollapseParentNode: function(setting, node, expandFlag, animateFlag, callback) {
			if (!node) return;
			if (!node.parentTId) {
				view.expandCollapseNode(setting, node, expandFlag, animateFlag, callback);
				return;
			} else {
				view.expandCollapseNode(setting, node, expandFlag, animateFlag);
			}
			if (node.parentTId) {
				view.expandCollapseParentNode(setting, node.getParentNode(), expandFlag, animateFlag, callback);
			}
		},
		expandCollapseSonNode: function(setting, node, expandFlag, animateFlag, callback) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			treeNodes = (node) ? node[childKey]: root[childKey],
			selfAnimateSign = (node) ? false : animateFlag,
			expandTriggerFlag = data.getRoot(setting).expandTriggerFlag;
			data.getRoot(setting).expandTriggerFlag = false;
			if (treeNodes) {
				for (var i = 0, l = treeNodes.length; i < l; i++) {
					if (treeNodes[i]) view.expandCollapseSonNode(setting, treeNodes[i], expandFlag, selfAnimateSign);
				}
			}
			data.getRoot(setting).expandTriggerFlag = expandTriggerFlag;
			view.expandCollapseNode(setting, node, expandFlag, animateFlag, callback );
		},
		isSelectedNode: function (setting, node) {
			if (!node) {
				return false;
			}
			var list = data.getRoot(setting).curSelectedList,
				i;
			for (i=list.length-1; i>=0; i--) {
				if (node === list[i]) {
					return true;
				}
			}
			return false;
		},
		makeDOMNodeIcon: function(html, setting, node) {
			var nameStr = data.getNodeName(setting, node),
			name = setting.view.nameIsHTML ? nameStr : nameStr.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
			html.push("<span id='", node.tId, consts.id.ICON,
				"' title='' treeNode", consts.id.ICON," class='", view.makeNodeIcoClass(setting, node),
				"' style='", view.makeNodeIcoStyle(setting, node), "'></span><span id='", node.tId, consts.id.SPAN,
				"'>",name,"</span>");
		},
		makeDOMNodeLine: function(html, setting, node) {
			html.push("<span id='", node.tId, consts.id.SWITCH,	"' title='' class='", view.makeNodeLineClass(setting, node), "' treeNode", consts.id.SWITCH,"></span>");
		},
		makeDOMNodeMainAfter: function(html, setting, node) {
			html.push("</li>");
		},
		makeDOMNodeMainBefore: function(html, setting, node) {
			html.push("<li id='", node.tId, "' class='", consts.className.LEVEL, node.level,"' tabindex='0' hidefocus='true' treenode>");
		},
		makeDOMNodeNameAfter: function(html, setting, node) {
			html.push("</a>");
		},
		makeDOMNodeNameBefore: function(html, setting, node) {
			var title = data.getNodeTitle(setting, node),
			url = view.makeNodeUrl(setting, node),
			fontcss = view.makeNodeFontCss(setting, node),
			fontStyle = [];
			for (var f in fontcss) {
				fontStyle.push(f, ":", fontcss[f], ";");
			}
			html.push("<a id='", node.tId, consts.id.A, "' class='", consts.className.LEVEL, node.level,"' treeNode", consts.id.A," onclick=\"", (node.click || ''),
				"\" ", ((url != null && url.length > 0) ? "href='" + url + "'" : ""), " target='",view.makeNodeTarget(node),"' style='", fontStyle.join(''),
				"'");
			if (tools.apply(setting.view.showTitle, [setting.treeId, node], setting.view.showTitle) && title) {html.push("title='", title.replace(/'/g,"&#39;").replace(/</g,'&lt;').replace(/>/g,'&gt;'),"'");}
			html.push(">");
		},
		makeNodeFontCss: function(setting, node) {
			var fontCss = tools.apply(setting.view.fontCss, [setting.treeId, node], setting.view.fontCss);
			return (fontCss && ((typeof fontCss) != "function")) ? fontCss : {};
		},
		makeNodeIcoClass: function(setting, node) {
			var icoCss = ["ico"];
			if (!node.isAjaxing) {
				icoCss[0] = (node.iconSkin ? node.iconSkin + "_" : "") + icoCss[0];
				if (node.isParent) {
					icoCss.push(node.open ? consts.folder.OPEN : consts.folder.CLOSE);
				} else {
					icoCss.push(consts.folder.DOCU);
				}
			}
			return consts.className.BUTTON + " " + icoCss.join('_');
		},
		makeNodeIcoStyle: function(setting, node) {
			var icoStyle = [];
			if (!node.isAjaxing) {
				var icon = (node.isParent && node.iconOpen && node.iconClose) ? (node.open ? node.iconOpen : node.iconClose) : node.icon;
				if (icon) icoStyle.push("background:url(", icon, ") 0 0 no-repeat;");
				if (setting.view.showIcon == false || !tools.apply(setting.view.showIcon, [setting.treeId, node], true)) {
					icoStyle.push("width:0px;height:0px;");
				}
			}
			return icoStyle.join('');
		},
		makeNodeLineClass: function(setting, node) {
			var lineClass = [];
			if (setting.view.showLine) {
				if (node.level == 0 && node.isFirstNode && node.isLastNode) {
					lineClass.push(consts.line.ROOT);
				} else if (node.level == 0 && node.isFirstNode) {
					lineClass.push(consts.line.ROOTS);
				} else if (node.isLastNode) {
					lineClass.push(consts.line.BOTTOM);
				} else {
					lineClass.push(consts.line.CENTER);
				}
			} else {
				lineClass.push(consts.line.NOLINE);
			}
			if (node.isParent) {
				lineClass.push(node.open ? consts.folder.OPEN : consts.folder.CLOSE);
			} else {
				lineClass.push(consts.folder.DOCU);
			}
			return view.makeNodeLineClassEx(node) + lineClass.join('_');
		},
		makeNodeLineClassEx: function(node) {
			return consts.className.BUTTON + " " + consts.className.LEVEL + node.level + " " + consts.className.SWITCH + " ";
		},
		makeNodeTarget: function(node) {
			return (node.target || "_blank");
		},
		makeNodeUrl: function(setting, node) {
			var urlKey = setting.data.key.url;
			return node[urlKey] ? node[urlKey] : null;
		},
		makeUlHtml: function(setting, node, html, content) {
			html.push("<ul id='", node.tId, consts.id.UL, "' class='", consts.className.LEVEL, node.level, " ", view.makeUlLineClass(setting, node), "' style='display:", (node.open ? "block": "none"),"'>");
			html.push(content);
			html.push("</ul>");
		},
		makeUlLineClass: function(setting, node) {
			return ((setting.view.showLine && !node.isLastNode) ? consts.line.LINE : "");
		},
		removeChildNodes: function(setting, node) {
			if (!node) return;
			var childKey = setting.data.key.children,
			nodes = node[childKey];
			if (!nodes) return;

			for (var i = 0, l = nodes.length; i < l; i++) {
				data.removeNodeCache(setting, nodes[i]);
			}
			data.removeSelectedNode(setting);
			delete node[childKey];

			if (!setting.data.keep.parent) {
				node.isParent = false;
				node.open = false;
				var tmp_switchObj = $$(node, consts.id.SWITCH, setting),
				tmp_icoObj = $$(node, consts.id.ICON, setting);
				view.replaceSwitchClass(node, tmp_switchObj, consts.folder.DOCU);
				view.replaceIcoClass(node, tmp_icoObj, consts.folder.DOCU);
				$$(node, consts.id.UL, setting).remove();
			} else {
				$$(node, consts.id.UL, setting).empty();
			}
		},
		setFirstNode: function(setting, parentNode) {
			var childKey = setting.data.key.children, childLength = parentNode[childKey].length;
			if ( childLength > 0) {
				parentNode[childKey][0].isFirstNode = true;
			}
		},
		setLastNode: function(setting, parentNode) {
			var childKey = setting.data.key.children, childLength = parentNode[childKey].length;
			if ( childLength > 0) {
				parentNode[childKey][childLength - 1].isLastNode = true;
			}
		},
		removeNode: function(setting, node) {
			var root = data.getRoot(setting),
			childKey = setting.data.key.children,
			parentNode = (node.parentTId) ? node.getParentNode() : root;

			node.isFirstNode = false;
			node.isLastNode = false;
			node.getPreNode = function() {return null;};
			node.getNextNode = function() {return null;};

			if (!data.getNodeCache(setting, node.tId)) {
				return;
			}

			$$(node, setting).remove();
			data.removeNodeCache(setting, node);
			data.removeSelectedNode(setting, node);

			for (var i = 0, l = parentNode[childKey].length; i < l; i++) {
				if (parentNode[childKey][i].tId == node.tId) {
					parentNode[childKey].splice(i, 1);
					break;
				}
			}
			view.setFirstNode(setting, parentNode);
			view.setLastNode(setting, parentNode);

			var tmp_ulObj,tmp_switchObj,tmp_icoObj,
			childLength = parentNode[childKey].length;

			//repair nodes old parent
			if (!setting.data.keep.parent && childLength == 0) {
				//old parentNode has no child nodes
				parentNode.isParent = false;
				parentNode.open = false;
				tmp_ulObj = $$(parentNode, consts.id.UL, setting);
				tmp_switchObj = $$(parentNode, consts.id.SWITCH, setting);
				tmp_icoObj = $$(parentNode, consts.id.ICON, setting);
				view.replaceSwitchClass(parentNode, tmp_switchObj, consts.folder.DOCU);
				view.replaceIcoClass(parentNode, tmp_icoObj, consts.folder.DOCU);
				tmp_ulObj.css("display", "none");

			} else if (setting.view.showLine && childLength > 0) {
				//old parentNode has child nodes
				var newLast = parentNode[childKey][childLength - 1];
				tmp_ulObj = $$(newLast, consts.id.UL, setting);
				tmp_switchObj = $$(newLast, consts.id.SWITCH, setting);
				tmp_icoObj = $$(newLast, consts.id.ICON, setting);
				if (parentNode == root) {
					if (parentNode[childKey].length == 1) {
						//node was root, and ztree has only one root after move node
						view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.ROOT);
					} else {
						var tmp_first_switchObj = $$(parentNode[childKey][0], consts.id.SWITCH, setting);
						view.replaceSwitchClass(parentNode[childKey][0], tmp_first_switchObj, consts.line.ROOTS);
						view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.BOTTOM);
					}
				} else {
					view.replaceSwitchClass(newLast, tmp_switchObj, consts.line.BOTTOM);
				}
				tmp_ulObj.removeClass(consts.line.LINE);
			}
		},
		replaceIcoClass: function(node, obj, newName) {
			if (!obj || node.isAjaxing) return;
			var tmpName = obj.attr("class");
			if (tmpName == undefined) return;
			var tmpList = tmpName.split("_");
			switch (newName) {
				case consts.folder.OPEN:
				case consts.folder.CLOSE:
				case consts.folder.DOCU:
					tmpList[tmpList.length-1] = newName;
					break;
			}
			obj.attr("class", tmpList.join("_"));
		},
		replaceSwitchClass: function(node, obj, newName) {
			if (!obj) return;
			var tmpName = obj.attr("class");
			if (tmpName == undefined) return;
			var tmpList = tmpName.split("_");
			switch (newName) {
				case consts.line.ROOT:
				case consts.line.ROOTS:
				case consts.line.CENTER:
				case consts.line.BOTTOM:
				case consts.line.NOLINE:
					tmpList[0] = view.makeNodeLineClassEx(node) + newName;
					break;
				case consts.folder.OPEN:
				case consts.folder.CLOSE:
				case consts.folder.DOCU:
					tmpList[1] = newName;
					break;
			}
			obj.attr("class", tmpList.join("_"));
			if (newName !== consts.folder.DOCU) {
				obj.removeAttr("disabled");
			} else {
				obj.attr("disabled", "disabled");
			}
		},
		selectNode: function(setting, node, addFlag) {
			if (!addFlag) {
				view.cancelPreSelectedNode(setting, null, node);
			}
			$$(node, consts.id.A, setting).addClass(consts.node.CURSELECTED);
			data.addSelectedNode(setting, node);
			setting.treeObj.trigger(consts.event.SELECTED, [event, setting.treeId, node]);
		},
		setNodeFontCss: function(setting, treeNode) {
			var aObj = $$(treeNode, consts.id.A, setting),
			fontCss = view.makeNodeFontCss(setting, treeNode);
			if (fontCss) {
				aObj.css(fontCss);
			}
		},
		setNodeLineIcos: function(setting, node) {
			if (!node) return;
			var switchObj = $$(node, consts.id.SWITCH, setting),
			ulObj = $$(node, consts.id.UL, setting),
			icoObj = $$(node, consts.id.ICON, setting),
			ulLine = view.makeUlLineClass(setting, node);
			if (ulLine.length==0) {
				ulObj.removeClass(consts.line.LINE);
			} else {
				ulObj.addClass(ulLine);
			}
			switchObj.attr("class", view.makeNodeLineClass(setting, node));
			if (node.isParent) {
				switchObj.removeAttr("disabled");
			} else {
				switchObj.attr("disabled", "disabled");
			}
			icoObj.removeAttr("style");
			icoObj.attr("style", view.makeNodeIcoStyle(setting, node));
			icoObj.attr("class", view.makeNodeIcoClass(setting, node));
		},
		setNodeName: function(setting, node) {
			var title = data.getNodeTitle(setting, node),
			nObj = $$(node, consts.id.SPAN, setting);
			nObj.empty();
			if (setting.view.nameIsHTML) {
				nObj.html(data.getNodeName(setting, node));
			} else {
				nObj.text(data.getNodeName(setting, node));
			}
			if (tools.apply(setting.view.showTitle, [setting.treeId, node], setting.view.showTitle)) {
				var aObj = $$(node, consts.id.A, setting);
				aObj.attr("title", !title ? "" : title);
			}
		},
		setNodeTarget: function(setting, node) {
			var aObj = $$(node, consts.id.A, setting);
			aObj.attr("target", view.makeNodeTarget(node));
		},
		setNodeUrl: function(setting, node) {
			var aObj = $$(node, consts.id.A, setting),
			url = view.makeNodeUrl(setting, node);
			if (url == null || url.length == 0) {
				aObj.removeAttr("href");
			} else {
				aObj.attr("href", url);
			}
		},
		switchNode: function(setting, node) {
			if (node.open || !tools.canAsync(setting, node)) {
				view.expandCollapseNode(setting, node, !node.open);
			} else if (setting.async.enable) {
				if (!view.asyncNode(setting, node)) {
					view.expandCollapseNode(setting, node, !node.open);
					return;
				}
			} else if (node) {
				view.expandCollapseNode(setting, node, !node.open);
			}
		}
	};
	// zTree defind
	$.fn.zTree = {
		consts : _consts,
		_z : {
			tools: tools,
			view: view,
			event: event,
			data: data
		},
		getZTreeObj: function(treeId) {
			var o = data.getZTreeTools(treeId);
			return o ? o : null;
		},
		destroy: function(treeId) {
			if (!!treeId && treeId.length > 0) {
				view.destroy(data.getSetting(treeId));
			} else {
				for(var s in settings) {
					view.destroy(settings[s]);
				}
			}
		},
		init: function(obj, zSetting, zNodes) {
			var setting = tools.clone(_setting);
			$.extend(true, setting, zSetting);
			setting.treeId = obj.attr("id");
			setting.treeObj = obj;
			setting.treeObj.empty();
			settings[setting.treeId] = setting;
			//For some older browser,(e.g., ie6)
			if(typeof document.body.style.maxHeight === "undefined") {
				setting.view.expandSpeed = "";
			}
			data.initRoot(setting);
			var root = data.getRoot(setting),
			childKey = setting.data.key.children;
			zNodes = zNodes ? tools.clone(tools.isArray(zNodes)? zNodes : [zNodes]) : [];
			if (setting.data.simpleData.enable) {
				root[childKey] = data.transformTozTreeFormat(setting, zNodes);
			} else {
				root[childKey] = zNodes;
			}

			data.initCache(setting);
			event.unbindTree(setting);
			event.bindTree(setting);
			event.unbindEvent(setting);
			event.bindEvent(setting);

			var zTreeTools = {
				setting : setting,
				addNodes : function(parentNode, newNodes, isSilent) {
					if (!newNodes) return null;
					if (!parentNode) parentNode = null;
					if (parentNode && !parentNode.isParent && setting.data.keep.leaf) return null;
					var xNewNodes = tools.clone(tools.isArray(newNodes)? newNodes: [newNodes]);
					function addCallback() {
						view.addNodes(setting, parentNode, xNewNodes, (isSilent==true));
					}

					if (tools.canAsync(setting, parentNode)) {
						view.asyncNode(setting, parentNode, isSilent, addCallback);
					} else {
						addCallback();
					}
					return xNewNodes;
				},
				cancelSelectedNode : function(node) {
					view.cancelPreSelectedNode(setting, node);
				},
				destroy : function() {
					view.destroy(setting);
				},
				expandAll : function(expandFlag) {
					expandFlag = !!expandFlag;
					view.expandCollapseSonNode(setting, null, expandFlag, true);
					return expandFlag;
				},
				expandNode : function(node, expandFlag, sonSign, focus, callbackFlag) {
					if (!node || !node.isParent) return null;
					if (expandFlag !== true && expandFlag !== false) {
						expandFlag = !node.open;
					}
					callbackFlag = !!callbackFlag;

					if (callbackFlag && expandFlag && (tools.apply(setting.callback.beforeExpand, [setting.treeId, node], true) == false)) {
						return null;
					} else if (callbackFlag && !expandFlag && (tools.apply(setting.callback.beforeCollapse, [setting.treeId, node], true) == false)) {
						return null;
					}
					if (expandFlag && node.parentTId) {
						view.expandCollapseParentNode(setting, node.getParentNode(), expandFlag, false);
					}
					if (expandFlag === node.open && !sonSign) {
						return null;
					}

					data.getRoot(setting).expandTriggerFlag = callbackFlag;
					if (!tools.canAsync(setting, node) && sonSign) {
						view.expandCollapseSonNode(setting, node, expandFlag, true, function() {
							if (focus !== false) {try{$$(node, setting).focus().blur();}catch(e){}}
						});
					} else {
						node.open = !expandFlag;
						view.switchNode(this.setting, node);
						if (focus !== false) {try{$$(node, setting).focus().blur();}catch(e){}}
					}
					return expandFlag;
				},
				getNodes : function() {
					return data.getNodes(setting);
				},
				getNodeByParam : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodeByParam(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodeByTId : function(tId) {
					return data.getNodeCache(setting, tId);
				},
				getNodesByParam : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodesByParam(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodesByParamFuzzy : function(key, value, parentNode) {
					if (!key) return null;
					return data.getNodesByParamFuzzy(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), key, value);
				},
				getNodesByFilter: function(filter, isSingle, parentNode, invokeParam) {
					isSingle = !!isSingle;
					if (!filter || (typeof filter != "function")) return (isSingle ? null : []);
					return data.getNodesByFilter(setting, parentNode?parentNode[setting.data.key.children]:data.getNodes(setting), filter, isSingle, invokeParam);
				},
				getNodeIndex : function(node) {
					if (!node) return null;
					var childKey = setting.data.key.children,
					parentNode = (node.parentTId) ? node.getParentNode() : data.getRoot(setting);
					for (var i=0, l = parentNode[childKey].length; i < l; i++) {
						if (parentNode[childKey][i] == node) return i;
					}
					return -1;
				},
				getSelectedNodes : function() {
					var r = [], list = data.getRoot(setting).curSelectedList;
					for (var i=0, l=list.length; i<l; i++) {
						r.push(list[i]);
					}
					return r;
				},
				isSelectedNode : function(node) {
					return data.isSelectedNode(setting, node);
				},
				reAsyncChildNodes : function(parentNode, reloadType, isSilent) {
					if (!this.setting.async.enable) return;
					var isRoot = !parentNode;
					if (isRoot) {
						parentNode = data.getRoot(setting);
					}
					if (reloadType=="refresh") {
						var childKey = this.setting.data.key.children;
						for (var i = 0, l = parentNode[childKey] ? parentNode[childKey].length : 0; i < l; i++) {
							data.removeNodeCache(setting, parentNode[childKey][i]);
						}
						data.removeSelectedNode(setting);
						parentNode[childKey] = [];
						if (isRoot) {
							this.setting.treeObj.empty();
						} else {
							var ulObj = $$(parentNode, consts.id.UL, setting);
							ulObj.empty();
						}
					}
					view.asyncNode(this.setting, isRoot? null:parentNode, !!isSilent);
				},
				refresh : function() {
					this.setting.treeObj.empty();
					var root = data.getRoot(setting),
					nodes = root[setting.data.key.children]
					data.initRoot(setting);
					root[setting.data.key.children] = nodes
					data.initCache(setting);
					view.createNodes(setting, 0, root[setting.data.key.children]);
				},
				removeChildNodes : function(node) {
					if (!node) return null;
					var childKey = setting.data.key.children,
					nodes = node[childKey];
					view.removeChildNodes(setting, node);
					return nodes ? nodes : null;
				},
				removeNode : function(node, callbackFlag) {
					if (!node) return;
					callbackFlag = !!callbackFlag;
					if (callbackFlag && tools.apply(setting.callback.beforeRemove, [setting.treeId, node], true) == false) return;
					view.removeNode(setting, node);
					if (callbackFlag) {
						this.setting.treeObj.trigger(consts.event.REMOVE, [setting.treeId, node]);
					}
				},
				selectNode : function(node, addFlag) {
					if (!node) return;
					if (tools.uCanDo(setting)) {
						addFlag = setting.view.selectedMulti && addFlag;
						if (node.parentTId) {
							view.expandCollapseParentNode(setting, node.getParentNode(), true, false, function() {
								try{$$(node, setting).focus().blur();}catch(e){}
							});
						} else {
							try{$$(node, setting).focus().blur();}catch(e){}
						}
						view.selectNode(setting, node, addFlag);
					}
				},
				transformTozTreeNodes : function(simpleNodes) {
					return data.transformTozTreeFormat(setting, simpleNodes);
				},
				transformToArray : function(nodes) {
					return data.transformToArrayFormat(setting, nodes);
				},
				updateNode : function(node, checkTypeFlag) {
					if (!node) return;
					var nObj = $$(node, setting);
					if (nObj.get(0) && tools.uCanDo(setting)) {
						view.setNodeName(setting, node);
						view.setNodeTarget(setting, node);
						view.setNodeUrl(setting, node);
						view.setNodeLineIcos(setting, node);
						view.setNodeFontCss(setting, node);
					}
				}
			}
			root.treeTools = zTreeTools;
			data.setZTreeTools(setting, zTreeTools);

			if (root[childKey] && root[childKey].length > 0) {
				view.createNodes(setting, 0, root[childKey]);
			} else if (setting.async.enable && setting.async.url && setting.async.url !== '') {
				view.asyncNode(setting);
			}
			return zTreeTools;
		}
	};

	var zt = $.fn.zTree,
	$$ = tools.$,
	consts = zt.consts;
})(jQuery);/*
 * JQuery zTree excheck v3.5.18
 * http://zTree.me/
 *
 * Copyright (c) 2010 Hunter.z
 *
 * Licensed same as jquery - MIT License
 * http://www.opensource.org/licenses/mit-license.php
 *
 * email: hunter.z@263.net
 * Date: 2015-06-18
 */
(function($){
	//default consts of excheck
	var _consts = {
		event: {
			CHECK: "ztree_check"
		},
		id: {
			CHECK: "_check"
		},
		checkbox: {
			STYLE: "checkbox",
			DEFAULT: "chk",
			DISABLED: "disable",
			FALSE: "false",
			TRUE: "true",
			FULL: "full",
			PART: "part",
			FOCUS: "focus"
		},
		radio: {
			STYLE: "radio",
			TYPE_ALL: "all",
			TYPE_LEVEL: "level"
		}
	},
	//default setting of excheck
	_setting = {
		check: {
			enable: false,
			autoCheckTrigger: false,
			chkStyle: _consts.checkbox.STYLE,
			nocheckInherit: false,
			chkDisabledInherit: false,
			radioType: _consts.radio.TYPE_LEVEL,
			chkboxType: {
				"Y": "ps",
				"N": "ps"
			}
		},
		data: {
			key: {
				checked: "checked"
			}
		},
		callback: {
			beforeCheck:null,
			onCheck:null
		}
	},
	//default root of excheck
	_initRoot = function (setting) {
		var r = data.getRoot(setting);
		r.radioCheckedList = [];
	},
	//default cache of excheck
	_initCache = function(treeId) {},
	//default bind event of excheck
	_bindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.bind(c.CHECK, function (event, srcEvent, treeId, node) {
			event.srcEvent = srcEvent;
			tools.apply(setting.callback.onCheck, [event, treeId, node]);
		});
	},
	_unbindEvent = function(setting) {
		var o = setting.treeObj,
		c = consts.event;
		o.unbind(c.CHECK);
	},
	//default event proxy of excheck
	_eventProxy = function(e) {
		var target = e.target,
		setting = data.getSetting(e.data.treeId),
		tId = "", node = null,
		nodeEventType = "", treeEventType = "",
		nodeEventCallback = null, treeEventCallback = null;

		if (tools.eqs(e.type, "mouseover")) {
			if (setting.check.enable && tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.CHECK) !== null) {
				tId = tools.getNodeMainDom(target).id;
				nodeEventType = "mouseoverCheck";
			}
		} else if (tools.eqs(e.type, "mouseout")) {
			if (setting.check.enable && tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.CHECK) !== null) {
				tId = tools.getNodeMainDom(target).id;
				nodeEventType = "mouseoutCheck";
			}
		} else if (tools.eqs(e.type, "click")) {
			if (setting.check.enable && tools.eqs(target.tagName, "span") && target.getAttribute("treeNode"+ consts.id.CHECK) !== null) {
				tId = tools.getNodeMainDom(target).id;
				nodeEventType = "checkNode";
			}
		}
		if (tId.length>0) {
			node = data.getNodeCache(setting, tId);
			switch (nodeEventType) {
				case "checkNode" :
					nodeEventCallback = _handler.onCheckNode;
					break;
				case "mouseoverCheck" :
					nodeEventCallback = _handler.onMouseoverCheck;
					break;
				case "mouseoutCheck" :
					nodeEventCallback = _handler.onMouseoutCheck;
					break;
			}
		}
		var proxyResult = {
			stop: nodeEventType === "checkNode",
			node: node,
			nodeEventType: nodeEventType,
			nodeEventCallback: nodeEventCallback,
			treeEventType: treeEventType,
			treeEventCallback: treeEventCallback
		};
		return proxyResult
	},
	//default init node of excheck
	_initNode = function(setting, level, n, parentNode, isFirstNode, isLastNode, openFlag) {
		if (!n) return;
		var checkedKey = setting.data.key.checked;
		if (typeof n[checkedKey] == "string") n[checkedKey] = tools.eqs(n[checkedKey], "true");
		n[checkedKey] = !!n[checkedKey];
		n.checkedOld = n[checkedKey];
		if (typeof n.nocheck == "string") n.nocheck = tools.eqs(n.nocheck, "true");
		n.nocheck = !!n.nocheck || (setting.check.nocheckInherit && parentNode && !!parentNode.nocheck);
		if (typeof n.chkDisabled == "string") n.chkDisabled = tools.eqs(n.chkDisabled, "true");
		n.chkDisabled = !!n.chkDisabled || (setting.check.chkDisabledInherit && parentNode && !!parentNode.chkDisabled);
		if (typeof n.halfCheck == "string") n.halfCheck = tools.eqs(n.halfCheck, "true");
		n.halfCheck = !!n.halfCheck;
		n.check_Child_State = -1;
		n.check_Focus = false;
		n.getCheckStatus = function() {return data.getCheckStatus(setting, n);};

		if (setting.check.chkStyle == consts.radio.STYLE && setting.check.radioType == consts.radio.TYPE_ALL && n[checkedKey] ) {
			var r = data.getRoot(setting);
			r.radioCheckedList.push(n);
		}
	},
	//add dom for check
	_beforeA = function(setting, node, html) {
		var checkedKey = setting.data.key.checked;
		if (setting.check.enable) {
			data.makeChkFlag(setting, node);
			html.push("<span ID='", node.tId, consts.id.CHECK, "' class='", view.makeChkClass(setting, node), "' treeNode", consts.id.CHECK, (node.nocheck === true?" style='display:none;'":""),"></span>");
		}
	},
	//update zTreeObj, add method of check
	_zTreeTools = function(setting, zTreeTools) {
		zTreeTools.checkNode = function(node, checked, checkTypeFlag, callbackFlag) {
			var checkedKey = this.setting.data.key.checked;
			if (node.chkDisabled === true) return;
			if (checked !== true && checked !== false) {
				checked = !node[checkedKey];
			}
			callbackFlag = !!callbackFlag;

			if (node[checkedKey] === checked && !checkTypeFlag) {
				return;
			} else if (callbackFlag && tools.apply(this.setting.callback.beforeCheck, [this.setting.treeId, node], true) == false) {
				return;
			}
			if (tools.uCanDo(this.setting) && this.setting.check.enable && node.nocheck !== true) {
				node[checkedKey] = checked;
				var checkObj = $$(node, consts.id.CHECK, this.setting);
				if (checkTypeFlag || this.setting.check.chkStyle === consts.radio.STYLE) view.checkNodeRelation(this.setting, node);
				view.setChkClass(this.setting, checkObj, node);
				view.repairParentChkClassWithSelf(this.setting, node);
				if (callbackFlag) {
					this.setting.treeObj.trigger(consts.event.CHECK, [null, this.setting.treeId, node]);
				}
			}
		}

		zTreeTools.checkAllNodes = function(checked) {
			view.repairAllChk(this.setting, !!checked);
		}

		zTreeTools.getCheckedNodes = function(checked) {
			var childKey = this.setting.data.key.children;
			checked = (checked !== false);
			return data.getTreeCheckedNodes(this.setting, data.getRoot(this.setting)[childKey], checked);
		}

		zTreeTools.getChangeCheckedNodes = function() {
			var childKey = this.setting.data.key.children;
			return data.getTreeChangeCheckedNodes(this.setting, data.getRoot(this.setting)[childKey]);
		}

		zTreeTools.setChkDisabled = function(node, disabled, inheritParent, inheritChildren) {
			disabled = !!disabled;
			inheritParent = !!inheritParent;
			inheritChildren = !!inheritChildren;
			view.repairSonChkDisabled(this.setting, node, disabled, inheritChildren);
			view.repairParentChkDisabled(this.setting, node.getParentNode(), disabled, inheritParent);
		}

		var _updateNode = zTreeTools.updateNode;
		zTreeTools.updateNode = function(node, checkTypeFlag) {
			if (_updateNode) _updateNode.apply(zTreeTools, arguments);
			if (!node || !this.setting.check.enable) return;
			var nObj = $$(node, this.setting);
			if (nObj.get(0) && tools.uCanDo(this.setting)) {
				var checkObj = $$(node, consts.id.CHECK, this.setting);
				if (checkTypeFlag == true || this.setting.check.chkStyle === consts.radio.STYLE) view.checkNodeRelation(this.setting, node);
				view.setChkClass(this.setting, checkObj, node);
				view.repairParentChkClassWithSelf(this.setting, node);
			}
		}
	},
	//method of operate data
	_data = {
		getRadioCheckedList: function(setting) {
			var checkedList = data.getRoot(setting).radioCheckedList;
			for (var i=0, j=checkedList.length; i<j; i++) {
				if(!data.getNodeCache(setting, checkedList[i].tId)) {
					checkedList.splice(i, 1);
					i--; j--;
				}
			}
			return checkedList;
		},
		getCheckStatus: function(setting, node) {
			if (!setting.check.enable || node.nocheck || node.chkDisabled) return null;
			var checkedKey = setting.data.key.checked,
			r = {
				checked: node[checkedKey],
				half: node.halfCheck ? node.halfCheck : (setting.check.chkStyle == consts.radio.STYLE ? (node.check_Child_State === 2) : (node[checkedKey] ? (node.check_Child_State > -1 && node.check_Child_State < 2) : (node.check_Child_State > 0)))
			};
			return r;
		},
		getTreeCheckedNodes: function(setting, nodes, checked, results) {
			if (!nodes) return [];
			var childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked,
			onlyOne = (checked && setting.check.chkStyle == consts.radio.STYLE && setting.check.radioType == consts.radio.TYPE_ALL);
			results = !results ? [] : results;
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i].nocheck !== true && nodes[i].chkDisabled !== true && nodes[i][checkedKey] == checked) {
					results.push(nodes[i]);
					if(onlyOne) {
						break;
					}
				}
				data.getTreeCheckedNodes(setting, nodes[i][childKey], checked, results);
				if(onlyOne && results.length > 0) {
					break;
				}
			}
			return results;
		},
		getTreeChangeCheckedNodes: function(setting, nodes, results) {
			if (!nodes) return [];
			var childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked;
			results = !results ? [] : results;
			for (var i = 0, l = nodes.length; i < l; i++) {
				if (nodes[i].nocheck !== true && nodes[i].chkDisabled !== true && nodes[i][checkedKey] != nodes[i].checkedOld) {
					results.push(nodes[i]);
				}
				data.getTreeChangeCheckedNodes(setting, nodes[i][childKey], results);
			}
			return results;
		},
		makeChkFlag: function(setting, node) {
			if (!node) return;
			var childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked,
			chkFlag = -1;
			if (node[childKey]) {
				for (var i = 0, l = node[childKey].length; i < l; i++) {
					var cNode = node[childKey][i];
					var tmp = -1;
					if (setting.check.chkStyle == consts.radio.STYLE) {
						if (cNode.nocheck === true || cNode.chkDisabled === true) {
							tmp = cNode.check_Child_State;
						} else if (cNode.halfCheck === true) {
							tmp = 2;
						} else if (cNode[checkedKey]) {
							tmp = 2;
						} else {
							tmp = cNode.check_Child_State > 0 ? 2:0;
						}
						if (tmp == 2) {
							chkFlag = 2; break;
						} else if (tmp == 0){
							chkFlag = 0;
						}
					} else if (setting.check.chkStyle == consts.checkbox.STYLE) {
						if (cNode.nocheck === true || cNode.chkDisabled === true) {
							tmp = cNode.check_Child_State;
						} else if (cNode.halfCheck === true) {
							tmp = 1;
						} else if (cNode[checkedKey] ) {
							tmp = (cNode.check_Child_State === -1 || cNode.check_Child_State === 2) ? 2 : 1;
						} else {
							tmp = (cNode.check_Child_State > 0) ? 1 : 0;
						}
						if (tmp === 1) {
							chkFlag = 1; break;
						} else if (tmp === 2 && chkFlag > -1 && i > 0 && tmp !== chkFlag) {
							chkFlag = 1; break;
						} else if (chkFlag === 2 && tmp > -1 && tmp < 2) {
							chkFlag = 1; break;
						} else if (tmp > -1) {
							chkFlag = tmp;
						}
					}
				}
			}
			node.check_Child_State = chkFlag;
		}
	},
	//method of event proxy
	_event = {

	},
	//method of event handler
	_handler = {
		onCheckNode: function (event, node) {
			if (node.chkDisabled === true) return false;
			var setting = data.getSetting(event.data.treeId),
			checkedKey = setting.data.key.checked;
			if (tools.apply(setting.callback.beforeCheck, [setting.treeId, node], true) == false) return true;
			node[checkedKey] = !node[checkedKey];
			view.checkNodeRelation(setting, node);
			var checkObj = $$(node, consts.id.CHECK, setting);
			view.setChkClass(setting, checkObj, node);
			view.repairParentChkClassWithSelf(setting, node);
			setting.treeObj.trigger(consts.event.CHECK, [event, setting.treeId, node]);
			return true;
		},
		onMouseoverCheck: function(event, node) {
			if (node.chkDisabled === true) return false;
			var setting = data.getSetting(event.data.treeId),
			checkObj = $$(node, consts.id.CHECK, setting);
			node.check_Focus = true;
			view.setChkClass(setting, checkObj, node);
			return true;
		},
		onMouseoutCheck: function(event, node) {
			if (node.chkDisabled === true) return false;
			var setting = data.getSetting(event.data.treeId),
			checkObj = $$(node, consts.id.CHECK, setting);
			node.check_Focus = false;
			view.setChkClass(setting, checkObj, node);
			return true;
		}
	},
	//method of tools for zTree
	_tools = {

	},
	//method of operate ztree dom
	_view = {
		checkNodeRelation: function(setting, node) {
			var pNode, i, l,
			childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked,
			r = consts.radio;
			if (setting.check.chkStyle == r.STYLE) {
				var checkedList = data.getRadioCheckedList(setting);
				if (node[checkedKey]) {
					if (setting.check.radioType == r.TYPE_ALL) {
						for (i = checkedList.length-1; i >= 0; i--) {
							pNode = checkedList[i];
							if (pNode[checkedKey] && pNode != node) {
								pNode[checkedKey] = false;
								checkedList.splice(i, 1);

								view.setChkClass(setting, $$(pNode, consts.id.CHECK, setting), pNode);
								if (pNode.parentTId != node.parentTId) {
									view.repairParentChkClassWithSelf(setting, pNode);
								}
							}
						}
						checkedList.push(node);
					} else {
						var parentNode = (node.parentTId) ? node.getParentNode() : data.getRoot(setting);
						for (i = 0, l = parentNode[childKey].length; i < l; i++) {
							pNode = parentNode[childKey][i];
							if (pNode[checkedKey] && pNode != node) {
								pNode[checkedKey] = false;
								view.setChkClass(setting, $$(pNode, consts.id.CHECK, setting), pNode);
							}
						}
					}
				} else if (setting.check.radioType == r.TYPE_ALL) {
					for (i = 0, l = checkedList.length; i < l; i++) {
						if (node == checkedList[i]) {
							checkedList.splice(i, 1);
							break;
						}
					}
				}

			} else {
				if (node[checkedKey] && (!node[childKey] || node[childKey].length==0 || setting.check.chkboxType.Y.indexOf("s") > -1)) {
					view.setSonNodeCheckBox(setting, node, true);
				}
				if (!node[checkedKey] && (!node[childKey] || node[childKey].length==0 || setting.check.chkboxType.N.indexOf("s") > -1)) {
					view.setSonNodeCheckBox(setting, node, false);
				}
				if (node[checkedKey] && setting.check.chkboxType.Y.indexOf("p") > -1) {
					view.setParentNodeCheckBox(setting, node, true);
				}
				if (!node[checkedKey] && setting.check.chkboxType.N.indexOf("p") > -1) {
					view.setParentNodeCheckBox(setting, node, false);
				}
			}
		},
		makeChkClass: function(setting, node) {
			var checkedKey = setting.data.key.checked,
			c = consts.checkbox, r = consts.radio,
			fullStyle = "";
			if (node.chkDisabled === true) {
				fullStyle = c.DISABLED;
			} else if (node.halfCheck) {
				fullStyle = c.PART;
			} else if (setting.check.chkStyle == r.STYLE) {
				fullStyle = (node.check_Child_State < 1)? c.FULL:c.PART;
			} else {
				fullStyle = node[checkedKey] ? ((node.check_Child_State === 2 || node.check_Child_State === -1) ? c.FULL:c.PART) : ((node.check_Child_State < 1)? c.FULL:c.PART);
			}
			var chkName = setting.check.chkStyle + "_" + (node[checkedKey] ? c.TRUE : c.FALSE) + "_" + fullStyle;
			chkName = (node.check_Focus && node.chkDisabled !== true) ? chkName + "_" + c.FOCUS : chkName;
			return consts.className.BUTTON + " " + c.DEFAULT + " " + chkName;
		},
		repairAllChk: function(setting, checked) {
			if (setting.check.enable && setting.check.chkStyle === consts.checkbox.STYLE) {
				var checkedKey = setting.data.key.checked,
				childKey = setting.data.key.children,
				root = data.getRoot(setting);
				for (var i = 0, l = root[childKey].length; i<l ; i++) {
					var node = root[childKey][i];
					if (node.nocheck !== true && node.chkDisabled !== true) {
						node[checkedKey] = checked;
					}
					view.setSonNodeCheckBox(setting, node, checked);
				}
			}
		},
		repairChkClass: function(setting, node) {
			if (!node) return;
			data.makeChkFlag(setting, node);
			if (node.nocheck !== true) {
				var checkObj = $$(node, consts.id.CHECK, setting);
				view.setChkClass(setting, checkObj, node);
			}
		},
		repairParentChkClass: function(setting, node) {
			if (!node || !node.parentTId) return;
			var pNode = node.getParentNode();
			view.repairChkClass(setting, pNode);
			view.repairParentChkClass(setting, pNode);
		},
		repairParentChkClassWithSelf: function(setting, node) {
			if (!node) return;
			var childKey = setting.data.key.children;
			if (node[childKey] && node[childKey].length > 0) {
				view.repairParentChkClass(setting, node[childKey][0]);
			} else {
				view.repairParentChkClass(setting, node);
			}
		},
		repairSonChkDisabled: function(setting, node, chkDisabled, inherit) {
			if (!node) return;
			var childKey = setting.data.key.children;
			if (node.chkDisabled != chkDisabled) {
				node.chkDisabled = chkDisabled;
			}
			view.repairChkClass(setting, node);
			if (node[childKey] && inherit) {
				for (var i = 0, l = node[childKey].length; i < l; i++) {
					var sNode = node[childKey][i];
					view.repairSonChkDisabled(setting, sNode, chkDisabled, inherit);
				}
			}
		},
		repairParentChkDisabled: function(setting, node, chkDisabled, inherit) {
			if (!node) return;
			if (node.chkDisabled != chkDisabled && inherit) {
				node.chkDisabled = chkDisabled;
			}
			view.repairChkClass(setting, node);
			view.repairParentChkDisabled(setting, node.getParentNode(), chkDisabled, inherit);
		},
		setChkClass: function(setting, obj, node) {
			if (!obj) return;
			if (node.nocheck === true) {
				obj.hide();
			} else {
				obj.show();
			}
            obj.attr('class', view.makeChkClass(setting, node));
		},
		setParentNodeCheckBox: function(setting, node, value, srcNode) {
			var childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked,
			checkObj = $$(node, consts.id.CHECK, setting);
			if (!srcNode) srcNode = node;
			data.makeChkFlag(setting, node);
			if (node.nocheck !== true && node.chkDisabled !== true) {
				node[checkedKey] = value;
				view.setChkClass(setting, checkObj, node);
				if (setting.check.autoCheckTrigger && node != srcNode) {
					setting.treeObj.trigger(consts.event.CHECK, [null, setting.treeId, node]);
				}
			}
			if (node.parentTId) {
				var pSign = true;
				if (!value) {
					var pNodes = node.getParentNode()[childKey];
					for (var i = 0, l = pNodes.length; i < l; i++) {
						if ((pNodes[i].nocheck !== true && pNodes[i].chkDisabled !== true && pNodes[i][checkedKey])
						|| ((pNodes[i].nocheck === true || pNodes[i].chkDisabled === true) && pNodes[i].check_Child_State > 0)) {
							pSign = false;
							break;
						}
					}
				}
				if (pSign) {
					view.setParentNodeCheckBox(setting, node.getParentNode(), value, srcNode);
				}
			}
		},
		setSonNodeCheckBox: function(setting, node, value, srcNode) {
			if (!node) return;
			var childKey = setting.data.key.children,
			checkedKey = setting.data.key.checked,
			checkObj = $$(node, consts.id.CHECK, setting);
			if (!srcNode) srcNode = node;

			var hasDisable = false;
			if (node[childKey]) {
				for (var i = 0, l = node[childKey].length; i < l && node.chkDisabled !== true; i++) {
					var sNode = node[childKey][i];
					view.setSonNodeCheckBox(setting, sNode, value, srcNode);
					if (sNode.chkDisabled === true) hasDisable = true;
				}
			}

			if (node != data.getRoot(setting) && node.chkDisabled !== true) {
				if (hasDisable && node.nocheck !== true) {
					data.makeChkFlag(setting, node);
				}
				if (node.nocheck !== true && node.chkDisabled !== true) {
					node[checkedKey] = value;
					if (!hasDisable) node.check_Child_State = (node[childKey] && node[childKey].length > 0) ? (value ? 2 : 0) : -1;
				} else {
					node.check_Child_State = -1;
				}
				view.setChkClass(setting, checkObj, node);
				if (setting.check.autoCheckTrigger && node != srcNode && node.nocheck !== true && node.chkDisabled !== true) {
					setting.treeObj.trigger(consts.event.CHECK, [null, setting.treeId, node]);
				}
			}

		}
	},

	_z = {
		tools: _tools,
		view: _view,
		event: _event,
		data: _data
	};
	$.extend(true, $.fn.zTree.consts, _consts);
	$.extend(true, $.fn.zTree._z, _z);

	var zt = $.fn.zTree,
	tools = zt._z.tools,
	consts = zt.consts,
	view = zt._z.view,
	data = zt._z.data,
	event = zt._z.event,
	$$ = tools.$;

	data.exSetting(_setting);
	data.addInitBind(_bindEvent);
	data.addInitUnBind(_unbindEvent);
	data.addInitCache(_initCache);
	data.addInitNode(_initNode);
	data.addInitProxy(_eventProxy, true);
	data.addInitRoot(_initRoot);
	data.addBeforeA(_beforeA);
	data.addZTreeTools(_zTreeTools);

	var _createNodes = view.createNodes;
	view.createNodes = function(setting, level, nodes, parentNode) {
		if (_createNodes) _createNodes.apply(view, arguments);
		if (!nodes) return;
		view.repairParentChkClassWithSelf(setting, parentNode);
	}
	var _removeNode = view.removeNode;
	view.removeNode = function(setting, node) {
		var parentNode = node.getParentNode();
		if (_removeNode) _removeNode.apply(view, arguments);
		if (!node || !parentNode) return;
		view.repairChkClass(setting, parentNode);
		view.repairParentChkClass(setting, parentNode);
	}

	var _appendNodes = view.appendNodes;
	view.appendNodes = function(setting, level, nodes, parentNode, initFlag, openFlag) {
		var html = "";
		if (_appendNodes) {
			html = _appendNodes.apply(view, arguments);
		}
		if (parentNode) {
			data.makeChkFlag(setting, parentNode);
		}
		return html;
	}
})(jQuery);