MouseScrollEvent

Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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

Warning: 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

webidl

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` Read only	`long`	Indicates scroll direction.

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.

Instance methods

initMouseScrollEvent(): See nsIDOMMouseScrollEvent::initMouseScrollEvent().

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
`MouseScrollEvent` Deprecated Non-standard	Chrome – No support Chrome footnote No support	Edge – No support Edge footnote No support	Firefox – Full support Firefox 3.5 (Release date: 2009-06-30) footnote Full support	Opera – No support Opera footnote No support	Safari – No support Safari footnote No support	Chrome Android – No support Chrome Android footnote No support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – No support Opera Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – No support WebView Android footnote No support	WebView on iOS – No support WebView on iOS footnote No support

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

Full support: Full support
No support: No support
: Non-standard. Check cross-browser support before using.
: Deprecated. Not for use in new websites.