/** * @class Ext.Gadget * @extend Ext.Widget * * `Ext.Gadget` is not actually a class but simply an alternate class name for `Ext.Widget`. It * is used primarily for writing cross-toolkit widgets. * * In the modern toolkit, `Ext.Gadget` is an alternate class name for Ext.Component in order * to allow gadgets to be used as `items` in an Ext.Container. */