/**
 * 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
        })
    },
    _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();
        }
    },

    _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;
                        ev(e);
                    });
                    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 () {
                            self.doClick();
                        }, 100);
                        mouseDown = true;
                        ev(e);
                    });
                    break;
                default:
                    if (o.stopEvent || o.stopPropagation) {
                        hand.mousedown(function (e) {
                            ev(e);
                        });
                        hand.mouseup(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, true);

        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;
            }
            onClick.apply(self, arguments);
        }
    },

    _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);
        }
    },

    _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";