/**
 *
 * Created by GUY on 2017/09/18.
 * @class BI.RichEditorParamAction
 * @extends BI.Widget
 */
BI.RichEditorParamAction = BI.inherit(BI.RichEditorAction, {
    _defaultConfig: function () {
        return BI.extend(BI.RichEditorParamAction.superclass._defaultConfig.apply(this, arguments), {});
    },

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

    _isParam: function (sel) {
        return sel.attr("data-type") === "param";
    },

    _createBlankNode: function () {
        return $("<span>").html("&nbsp;");
    },

    _addBlank: function ($param) {
        var o = this.options;
        var instance = o.editor.selectedInstance;
        var next = $param.next();
        if (next.length === 0 || this._isParam(next)) {
            var node = this._createBlankNode();
            $param.after(node);
            instance.setFocus(node[0]);
        } else {
            instance.setFocus(next[0]);
        }
    },

    _get$Sel: function () {
        var o = this.options;
        var instance = o.editor.selectedInstance;
        var sel = $(instance.selElm());
        if (sel[0].nodeType === 3 && this._isParam(sel.parent())) {
            sel = sel.parent();
        }
        return sel;
    },

    addParam: function (param) {
        var o = this.options;
        var sel = this._get$Sel();
        var $param = $("<span>").attr({
            "data-type": "param",
            "data-value": param
        }).css({
            color: "white",
            backgroundColor: "#009de3",
            padding: "0 5px"
        }).text(param).mousedown(function (e) {
            e.stopEvent();
            return false;
        });
        var wrapper = o.editor.instance.getElm().element;
        if (wrapper.find(sel).length <= 0) {
            wrapper.append($param);
        } else {
            sel.after($param);
        }
        this._addBlank($param);
    },

    keydown: function (e) {
        var o = this.options;
        var sel = this._get$Sel();
        if (e.keyCode === 229) {//中文输入法
            if (this._isParam(sel)) {
                this._addBlank(sel);
                e.stopEvent();
                return false;
            }
        }
        if (BI.Key[e.keyCode] || e.keyCode === BI.KeyCode.TAB || e.keyCode === BI.KeyCode.ENTER || e.keyCode === BI.KeyCode.SPACE) {
            if (this._isParam(sel)) {
                e.stopEvent();
                return false;
            }
        }
        if (e.keyCode === BI.KeyCode.BACKSPACE) {
            if (this._isParam(sel)) {
                sel.destroy();
                e.preventDefault();
                return false;
            }
        }
    },

    key: function (e) {
    }
});