touchcancel

touchcancel 觸控點發生失效的事件被觸發(例如太多觸控點時)

一般資訊

規範

Touch Events

介面

TouchEvent

起泡事件

是

可取消

否

對象

Document, Element

預設行為

無

屬性

Property	Type	Description
target Read only	EventTarget	The event target (the topmost target in the DOM tree).
type Read only	DOMString	The type of event.
bubbles Read only	Boolean	Whether the event normally bubbles or not.
cancelable Read only	Boolean	Whether the event is cancellable or not.
view Read only	WindowProxy	document.defaultView (window of the document)
detail Read only	long (float)	0.
touches Read only	TouchList	A list of Touches for every point of contact currently touching the surface.
targetTouches Read only	TouchList	A list of Touches for every point of contact that is touching the surface and started on the element that is the target of the current event.
changedTouches Read only	TouchList	A list of Touches for every point of contact which contributed to the event. For the touchstart event this must be a list of the touch points that just became active with the current event. For the touchmove event this must be a list of the touch points that have moved since the last event. For the touchend and touchcancel events this must be a list of the touch points that have just been removed from the surface.
ctrlKey Read only	boolean	true if the control key was down when the event was fired. false otherwise.
shiftKey Read only	boolean	true if the shift key was down when the event was fired. false otherwise.
altKey Read only	boolean	true if the alt key was down when the event was fired. false otherwise.
metaKey Read only	boolean	true if the meta key was down when the event was fired. false otherwise.

範例

各種觸控事件的範例：Touch events。

瀏覽器相容性

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• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	22.0	18.0 (18.0)	No support	No support	No support

Feature	Android	Android Webview	Chrome for Android	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	6.0 (6.0)	(Yes)	11	(Yes)	(Yes)

相關事件

ontouchcancel