nsIDOMMozTouchEvent

The nsIDOMMozTouchEvent interface describes a raw touch event. This provides a mechanism for working with events from touch screens. This differs from tracking mouse events in that touch events can be generated independently for each finger touching the screen. This lets you process multi-finger touch gestures and actions.

dom/interfaces/events/nsIDOMMozTouchEvent.idlScriptable

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Last changed in Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)

Inherits from: nsIDOMMouseEvent

Method overview

void initMozTouchEvent(in DOMString typeArg,
                        in boolean canBubbleArg,
                        in boolean cancelableArg,
                        in nsIDOMAbstractView viewArg,
                        in long detailArg,
                        in long screenXArg,
                        in long screenYArg,
                        in long clientXArg,
                        in long clientYArg,
                        in boolean ctrlKeyArg,
                        in boolean altKeyArg,
                        in boolean shiftKeyArg,
                        in boolean metaKeyArg,
                        in unsigned short buttonArg,
                        in nsIDOMEventTarget relatedTargetArg,
                        in unsigned long streamIdArg);

Attributes

Attribute	Type	Description
`streamId`	`unsigned long`	A unique identifier for each finger, so that each finger's movement can be tracked separately. This is a random number that is guaranteed to remain the same for each finger during all `MozTouchMove` events between the corresponding `MozTouchDown` and `MozTouchUp` events.

Methods

initMozTouchEvent()

Initializes the touch event.

void initSimpleGestureEvent(
  in DOMString typeArg,
  in boolean canBubbleArg,
  in boolean cancelableArg,
  in nsIDOMAbstractView viewArg,
  in long detailArg,
  in long screenXArg,
  in long screenYArg,
  in long clientXArg,
  in long clientYArg,
  in boolean ctrlKeyArg,
  in boolean altKeyArg,
  in boolean shiftKeyArg,
  in boolean metaKeyArg,
  in unsigned short buttonArg,
  in nsIDOMEventTarget relatedTargetArg,
  in unsigned long streamIdArg
);

Parameters

streamIdArg: The value to assign to the streamId attribute; this uniquely identifies the finger generating the touch events.