MouseScrollEvent

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.

Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.

The MouseScrollEvent interface represents events that occur due to the user moving a mouse wheel or similar input device.

Do not use this interface for wheel events.

Like MouseWheelEvent, this interface is non-standard and deprecated. It was used in Gecko-based browsers only. Instead use the standard WheelEvent.

Method overview

void initMouseScrollEvent(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 long axis);

Attributes

Attribute	Type	Description
`axis`	`long`	Indicates scroll direction. Read only.

Constants

Delta modes

Constant	Value	Description
`HORIZONTAL_AXIS`	`0x01`	The event is caused by horizontal wheel operation.
`VERTICAL_AXIS`	`0x02`	The event is caused by vertical wheel operation.

Methods

initMouseScrollEvent()

See nsIDOMMouseScrollEvent::initMouseScrollEvent().

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	Not supported	3.5 (1.9.1)	Not supported	Not supported	Not supported

Feature	Android	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	Not supported	1.0 (1.9.1)	Not supported	Not supported	Not supported