UIEvent

Constructors

UIEvent(): Creates a UIEvent object.

Instance properties

This interface also inherits properties of its parent, Event.

UIEvent.detail Read only: Returns a long with details about the event, depending on the event type.
UIEvent.sourceCapabilities Read only: Returns an instance of the InputDeviceCapabilities interface, which provides information about the physical device responsible for generating a touch event.
UIEvent.view Read only: Returns a WindowProxy that contains the view that generated the event.
UIEvent.which Read only: Returns the numeric keyCode of the key pressed, or the character code (charCode) for an alphanumeric key pressed.

Instance methods

This interface also inherits methods of its parent, Event.

UIEvent.initUIEvent(): Initializes a UIEvent object. If the event has already been dispatched, this method does nothing.

Specifications

Specification
UI Events # idl-uievent

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`UIEvent`	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 12.1 (Release date: 2012-11-20) footnote Full support	Safari – Full support Safari 1 (Release date: 2003-06-23) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 12.1 (Release date: 2012-10-09) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support
`UIEvent()` constructor	Chrome – Full support Chrome 26 (Release date: 2013-03-26) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 11 (Release date: 2012-03-13) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 7 (Release date: 2013-10-22) footnote Full support	Chrome Android – Full support Chrome Android 26 (Release date: 2013-04-03) footnote Full support	Firefox for Android – Full support Firefox for Android 14 (Release date: 2012-06-26) footnote Full support	Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 7 (Release date: 2013-09-18) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 7 (Release date: 2013-09-18) footnote Full support
`detail`	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 12.1 (Release date: 2012-11-20) footnote Full support	Safari – Full support Safari 1 (Release date: 2003-06-23) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 12.1 (Release date: 2012-10-09) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support
`initUIEvent` Deprecated	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 12.1 (Release date: 2012-11-20) footnote Full support	Safari – Full support Safari 1 (Release date: 2003-06-23) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 12.1 (Release date: 2012-10-09) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support
`sourceCapabilities` Experimental	Chrome – Full support Chrome 47 (Release date: 2015-12-01) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 34 (Release date: 2015-12-08) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 47 (Release date: 2015-12-02) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 34 (Release date: 2015-12-16) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – Full support Samsung Internet 5 (Release date: 2016-12-15) footnote Full support	WebView Android – Full support WebView Android 47 (Release date: 2015-12-02) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`view`	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 12.1 (Release date: 2012-11-20) footnote Full support	Safari – Full support Safari 1 (Release date: 2003-06-23) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 12.1 (Release date: 2012-10-09) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support
`which` Deprecated	Chrome – Full support Chrome 1 (Release date: 2008-12-11) footnote footnote When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.	Edge – Partial support Edge 12 – 18 (Release date: 2015-07-29) footnote Partial support footnote Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects. Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote footnote On `mousemove` events, the `which` property is incorrectly always set to `1`.	Opera – Partial support Opera 12.1 – 12.1 (Release date: 2012-11-20) footnote Partial support footnote Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects. Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 1 (Release date: 2003-06-23) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote footnote When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote footnote On `mousemove` events, the `which` property is incorrectly always set to `1`.	Opera Android – Partial support Opera Android 12.1 – 12.1 (Release date: 2012-10-09) footnote Partial support footnote Only supported for `KeyboardEvent` and `MouseEvent`, not all `UIEvent` objects. Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 1 (Release date: 2007-06-29) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote footnote When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote footnote When selecting an autocomplete suggestion, a `keydown` event fires where the event's `which` property is `undefined`. See bug 41425904.	WebView on iOS – Full support WebView on iOS 1 (Release date: 2007-06-29) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support
Partial support: Partial support
No support: No support
: Experimental. Expect behavior to change in the future.
: Deprecated. Not for use in new websites.
: See implementation notes.
: Has more compatibility info.

Constructors

Instance properties

Instance methods

Specifications

Browser compatibility

Legend

See also