The WheelEvent()
constructor returns a newly created FocusEvent
object.
var wheelEvent = new WheelEvent(typeArg, wheelEventInit);
typeArg
DOMString
representing the name of the event.wheelEventInit
Optional
WheelEventInit
dictionary, having the following fields: "deltaX"
, optional and defaulting to 0.0
, is a double
representing the horizontal scroll amount in the deltaMode
unit."deltaY"
, optional and defaulting to 0.0
, is a double
representing the vertical scroll amount in the deltaMode
unit."deltaZ"
, optional and defaulting to 0.0
, is a double
representing the scroll amount for the z-axis in the deltaMode
unit."deltaMode"
, optional and defaulting to 0
, is a unsigned long
representing the unit of the delta values scroll amount. Permitted values are: Constant | Value | Description |
---|---|---|
DOM_DELTA_PIXEL | 0x00 | The delta values are specified in pixels. |
DOM_DELTA_LINE | 0x01 | The delta values are specified in lines. |
DOM_DELTA_PAGE | 0x02 | The delta values are specified in pages. |
The WheelEventInit
dictionary also accepts fields from the MouseEventInit
, UIEventInit
and EventInit
dictionaries.
Specification | Status | Comment |
---|---|---|
Document Object Model (DOM) Level 3 Events Specification The definition of 'WheelEvent()' in that specification. | Working Draft | Initial definition |
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | 17.0 (17.0) | No support | (Yes) | (Yes) |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | (Yes) | 17.0 (17.0) | No support | (Yes) | (Yes) |
WheelEvent
interface it belongs to.
© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent/WheelEvent