class in UnityEngine.Experimental.UIElements
Base class for objects that can get the focus.
The focus is used to designate an element that will receive keyboard events.
|Return true if the element can be focused.
|Return the focus controller for this element.
|An integer used to sort focusables in the focus ring. A negative value means that the element can not be focused.
|Tell the element to release the focus.
|Attempt to give the focus to this element.
|Handle an event, most often by executing the callbacks associated with the event.
|Return true if event handlers for the event propagation BubbleUp phase have been attached on this object.
|Returns true if event handlers, for the event propagation TrickleDown phase, are attached to this object.
|Adds an event handler to the instance. If the event handler has already been registered for the same phase (either TrickleDown or BubbleUp) then this method has no effect.
|Sends an event to the event handler.
|Remove callback from the instance.