Class adf.MouseWheelAction
Extends
adf.Action.
Defined in: Action.js.
| Constructor Attributes | Constructor Name and Description |
|---|---|
|
Extends adf.Action to handle user interaction with a mouse scroll wheel.
|
- Fields borrowed from class adf.Action:
- cursor, graphicsZIndex, name, symbol
| Method Attributes | Method Name and Description |
|---|---|
|
activate(element, callBack)
This method activates the action and registers the required event listeners.
|
|
|
Deactivates the action and the event listeners set by this action
|
- Methods borrowed from class adf.Action:
- reactivate
Class Detail
adf.MouseWheelAction()
Extends adf.Action to handle user interaction with a mouse scroll wheel.
Method Detail
activate(element, callBack)
This method activates the action and registers the required event listeners. The second paramter
callBack will be called after the onmousewheel event has been fired by the
browser, with only one paramter being the change in position of the scroll wheel.
- Parameters:
- {Element} element
- The HTML DOM element that listens for mouse wheel events.
- {Function} callBack
- Callback function is called when when a browser's mouse wheel event is fired. The function is passed a single paramater, an Integer, representing how much the user has scrolled.
deactivate()
Deactivates the action and the event listeners set by this action