/** * Ext.FocusManager singleton is deprecated since Ext JS 5.1. * Focus management is always on and does not need any further steps to enable. * @deprecated */Ext.define('Ext.FocusManager', { singleton: true, alternateClassName: ['Ext.FocusMgr'], /** * @property {Boolean} enabled * Whether or not the FocusManager is currently enabled */ enabled: true, enable: Ext.emptyFn, disable: Ext.emptyFn});