import { IconButton, Single } from "@/base";
import { shortcut, extend, emptyFn, isFunction, createWidget, Controller } from "@/core";

/**
 * 可以改变图标的button
 *
 * Created by GUY on 2016/2/2.
 *
 * @class IconChangeButton
 * @extends Single
 */
@shortcut()
export class IconChangeButton extends Single {
    static xtype = "bi.icon_change_button";
    static EVENT_CHANGE = "EVENT_CHANGE";

    _defaultConfig() {
        const conf = super._defaultConfig(...arguments);

        return extend(conf, {
            baseCls: "bi-icon-change-button",
            iconCls: "",
            iconWidth: null,
            iconHeight: null,

            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
            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: emptyFn,
        });
    }

    _init() {
        const o = this.options;
        o.iconCls = isFunction(o.iconCls)
            ? this.__watch(o.iconCls, (context, newValue) => {
                  this.setIcon(newValue);
              })
            : o.iconCls;
        super._init(...arguments);
        this.button = createWidget({
            type: IconButton.xtype,
            element: this,
            cls: o.iconCls,
            height: o.height,
            iconWidth: o.iconWidth,
            iconHeight: o.iconHeight,

            stopEvent: o.stopEvent,
            stopPropagation: o.stopPropagation,
            selected: o.selected,
            once: o.once,
            forceSelected: o.forceSelected,
            forceNotSelected: o.forceNotSelected,
            disableSelected: o.disableSelected,

            shadow: o.shadow,
            isShadowShowingOnSelected: o.isShadowShowingOnSelected,
            trigger: o.trigger,
            handler: o.handler,
        });

        this.button.on(Controller.EVENT_CHANGE, (...args) => {
            this.fireEvent(Controller.EVENT_CHANGE, ...args);
        });
        this.button.on(IconButton.EVENT_CHANGE, (...args) => {
            this.fireEvent(IconChangeButton.EVENT_CHANGE, ...args);
        });
    }

    isSelected() {
        return this.button.isSelected();
    }

    setSelected(b) {
        this.button.setSelected(b);
    }

    setIcon(cls) {
        const o = this.options;
        if (o.iconCls !== cls) {
            this.element.removeClass(o.iconCls).addClass(cls);
            o.iconCls = cls;
        }
    }
}