Focusable

class in UnityEngine.UIElements

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Inherits from:UIElements.CallbackEventHandler

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Implemented in:UnityEngine.UIElementsModule

Description 描述

Base class for objects that can get the focus.

The focus is used to designate an element that will receive keyboard events.

Properties 属性

	canGrabFocus		Return true if the element can be focused.
	delegatesFocus		Whether the element should delegate the focus to its children.
	focusable		True if the element can be focused.
	focusController		Return the focus controller for this element.
	tabIndex		An integer used to sort focusables in the focus ring. Must be greater than or equal to zero.

Public Methods 公共方法

	Blur		Tell the element to release the focus.
	Focus		Attempt to give the focus to this element.

Inherited Members 继承成员

Public Methods 公共方法

	HandleEvent		Handle an event, most often by executing the callbacks associated with the event.
	HasBubbleUpHandlers		Return true if event handlers for the event propagation BubbleUp phase have been attached on this object.
	HasTrickleDownHandlers		Returns true if event handlers, for the event propagation TrickleDown phase, are attached to this object.
	RegisterCallback		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.
	SendEvent		Sends an event to the event handler.
	UnregisterCallback		Remove callback from the instance.