yvan-ext/src/controls/MainTab.js

import _ from 'lodash'
import $ from 'jquery'

export default function () {

    Ext.define('Yvan.MainTab', {
        extend: 'Ext.tab.Panel',
        xtype: 'maintab',

        constructor(config) {
            const self = this
            const newConfig = _.defaultsDeep({}, config, {
                listeners: {
                    tabchange(tabPanel, newCard, oldCard, eOpts) {
                        console.log('tabChange')
                        $(window).trigger('tabChange', {
                            tabPanel, newCard, oldCard, eOpts
                        });

                        if (typeof config.tabchange === 'function') {
                            config.tabchange.apply(this, arguments)
                        }
                    }
                }
            })
            this.superclass.constructor.call(self, newConfig)
        },

        addScope() {

        }
    });

}