/**
 * Created by GUY on 2015/8/10.
 */

import { shortcut, Widget, Controller, extend, isEmpty, each, formatEL, clone, createWidget } from "../../core";

@shortcut()
export class ComboGroup extends Widget {
    static xtype = "bi.combo_group";

    static EVENT_CHANGE = "EVENT_CHANGE";

    _defaultConfig() {
        return extend(super._defaultConfig(...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: "" },
            items: [],

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

    render() {
        this._populate(this.options.el);
    }

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

    getValue() {
        return this.combo.getValue();
    }

    setValue(v) {
        this.combo.setValue(v);
    }
}