/**
 * 文件管理控件
 *
 * Created by GUY on 2015/12/11.
 * @class BI.FileManager
 * @extends BI.Widget
 */
BI.FileManager = BI.inherit(BI.Widget, {

    _defaultConfig: function () {
        return BI.extend(BI.FileManager.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-file-manager",
            el: {},
            items: []
        });
    },

    _init: function () {
        BI.FileManager.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.tree = new BI.Tree();
        var items = BI.Tree.transformToTreeFormat(o.items);
        this.tree.initTree(items);
        this.selectedValues = [];
        this.nav = BI.createWidget({
            type: "bi.file_manager_nav",
            items: BI.deepClone(items)
        });
        this.nav.on(BI.FileManagerNav.EVENT_CHANGE, function (value, obj) {
            if (value == "-1") {// 根节点
                self.populate({children: self.tree.toJSON()});
            } else {
                var node = self.tree.search(obj.attr("id"));
                self.populate(BI.extend({id: node.id}, node.get("data"), {children: self.tree.toJSON(node)}));
            }
            self.setValue(self.selectedValues);
        });
        this.list = BI.createWidget(o.el, {
            type: "bi.file_manager_list",
            items: items
        });
        this.list.on(BI.Controller.EVENT_CHANGE, function (type, selected, obj) {
            if (type === BI.Events.CHANGE) {
                var node = self.tree.search(obj.attr("id"));
                self.populate(BI.extend({id: node.id}, node.get("data"), {children: self.tree.toJSON(node)}));
            } else if (type === BI.Events.CLICK) {
                var values = [];
                if (obj instanceof BI.MultiSelectBar) {
                    var t = self.list.getValue();
                    selected = t.type === BI.Selection.All;
                    values = BI.concat(t.assist, t.value);
                } else {
                    values = obj.getAllLeaves();
                }
                BI.each(values, function (i, v) {
                    if (selected === true) {
                        self.selectedValues.pushDistinct(v);
                    } else {
                        self.selectedValues.remove(v);
                    }
                });
            }
            self.setValue(self.selectedValues);
        });

        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.list,
                left: 0,
                right: 0,
                top: 0,
                bottom: 10
            }, {
                el: this.nav,
                left: 40,
                right: 100,
                top: 0
            }]
        });
    },

    setValue: function (value) {
        this.selectedValues = value || [];
        this.list.setValue(this.selectedValues);
    },

    getValue: function () {
        var obj = this.list.getValue();
        var res = obj.type === BI.Selection.All ? obj.assist : obj.value;
        res.pushDistinctArray(this.selectedValues);
        return res;
    },

    _populate: function (items) {
        this.list.populate(items);
    },

    getSelectedValue: function () {
        return this.nav.getValue()[0];
    },

    getSelectedId: function () {
        return this.nav.getId()[0];
    },

    populate: function (node) {
        var clone = BI.deepClone(node);
        this._populate(node.children);
        this.nav.populate(clone);
    }
});
BI.FileManager.EVENT_CHANGE = "FileManager.EVENT_CHANGE";
BI.shortcut("bi.file_manager", BI.FileManager);