/**
 * 简单的复选下拉框控件, 适用于数据量少的情况
 * 封装了字段处理逻辑
 *
 * Created by GUY on 2015/10/29.
 * @class BI.ValueChooserCombo
 * @extends BI.Widget
 */
BI.ValueChooserCombo = BI.inherit(BI.AbstractValueChooser, {

    _defaultConfig: function () {
        return BI.extend(BI.ValueChooserCombo.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-value-chooser-combo",
            width: 200,
            height: 30,
            items: null,
            itemsCreator: BI.emptyFn,
            cache: true
        });
    },

    _init: function () {
        BI.ValueChooserCombo.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        if (BI.isNotNull(o.items)) {
            this.items = o.items;
        }
        this.combo = BI.createWidget({
            type: "bi.multi_select_combo",
            element: this,
            itemsCreator: BI.bind(this._itemsCreator, this),
            valueFormatter: BI.bind(this._valueFormatter, this),
            width: o.width,
            height: o.height
        });

        this.combo.on(BI.MultiSelectCombo.EVENT_CONFIRM, function () {
            self.fireEvent(BI.ValueChooserCombo.EVENT_CONFIRM);
        });
    },

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

    getValue: function () {
        var val = this.combo.getValue() || {};
        return {
            type: val.type,
            value: val.value
        };
    },

    populate: function (items) {
        // 直接用combo的populate不会作用到AbstractValueChooser上
        this.items = items;
        this.combo.populate.apply(this, arguments);
    }
});
BI.ValueChooserCombo.EVENT_CONFIRM = "ValueChooserCombo.EVENT_CONFIRM";
BI.shortcut("bi.value_chooser_combo", BI.ValueChooserCombo);