OpenLayers. Handler. MouseWheel

Handler for wheel up/down events.

Inherits from

OpenLayers.Handler

Summary

OpenLayers. Handler. MouseWheel	Handler for wheel up/down events.
Properties
wheelListener	{function}
mousePosition	Private.
Functions
OpenLayers. Handler. MouseWheel
destroy
onWheelEvent	Catch the wheel event and handle it xbrowserly
mousemove	Update the stored mousePosition on every move.
activate
deactivate

Properties

wheelListener

{function}

mousePosition

Private. {OpenLayers.Pixel} mousePosition is necessary because evt.clientX/Y is buggy in Moz on wheel events, so we cache and use the value from the last mousemove.

Functions

OpenLayers. Handler. MouseWheel

Parameters

control	{OpenLayers.Control}
callbacks	{Object} An object containing a single function to be called when the drag operation is finished. The callback should expect to recieve a single argument, the point geometry.
options	{Object}

destroy

destroy: function()

onWheelEvent

onWheelEvent: function( e )

Catch the wheel event and handle it xbrowserly

Parameters

{Event}

mousemove

mousemove: function ( evt )

Update the stored mousePosition on every move.

Parameters

evt	{Event} The browser event

Return

{Boolean} Allow event propagation

activate

activate: function ( evt )

deactivate

deactivate: function ( evt )

destroy: function()

onWheelEvent: function( e )

Catch the wheel event and handle it xbrowserly

mousemove: function ( evt )

Update the stored mousePosition on every move.

activate: function ( evt )

deactivate: function ( evt )

Base class to construct a higher-level handler for event sequences.

This class represents a screen coordinate, in x and y coordinates