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.


Creates a GestureEvent object.


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

GestureEvent.rotation 只读
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 只读
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


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

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

Gesture event types


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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Microsoft Edge Opera Safari
Basic support 未实现 未实现 未实现 未实现 未实现 9.1
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 未实现 未实现 未实现 未实现 2.0


See also