saas-one/frontend/operation-web/app/view/core/window/Window.js

Ext.define('saas.view.core.window.Window', {
    extend: 'Ext.window.Window',
    xtype: 'core-win',
    controller: 'core-win-controller',

    cls: 'x-core-win',
    layout: 'fit',
    closable: true
});