Web/API/GestureEvent

Non-standard This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The GestureEvent is a proprietary interface specific to WebKit which gives information regarding multi-touch gestures. Events using this interface include gesturestart, gesturechange, and gestureend.

GestureEvent derives from UIEvent, which in turn derives from Event.

Constructor

GestureEvent(): Creates a GestureEvent object.

Properties

This interface also inherits properties of its parents, UIEvent and Event.

GestureEvent.rotation Read only: Change in rotation (in degrees) since the event's beginning. Positive values indicate clockwise rotation; negative values indicate anticlockwise rotation. Initial value: 0.0
GestureEvent.scale Read only: Distance between two digits since the event's beginning. Expressed as a floating-point multiple of the initial distance between the digits at the beginning of the gesture. Values below 1.0 indicate an inward pinch (zoom out). Values above 1.0 indicate an outward unpinch (zoom in). Initial value: 1.0

Methods

This interface also inherits methods of its parents, UIEvent and Event.

GestureEvent.initGestureEvent(): Initializes the value of an GestureEvent. If the event has already being dispatched, this method does nothing.

Gesture event types

gesturestart
gesturechange
gestureend

Specifications

Not part of any specification. Apple has a description at the Safari Developer Library.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`GestureEvent` Non-standard'	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari Full support 9	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS Full support 2	Samsung Internet Android No support No
`GestureEvent()` constructor Non-standard'	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari Full support 9	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS Full support 2	Samsung Internet Android No support No
`initGestureEvent` Non-standard'	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari Full support 9	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS Full support 2	Samsung Internet Android No support No
`rotation` Non-standard'	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari Full support 9	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS Full support 2	Samsung Internet Android No support No
`scale` Non-standard'	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari Full support 9	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS Full support 2	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
Non-standard. Expect poor cross-browser support.': Non-standard. Expect poor cross-browser support.