org.gwtopenmaps.openlayers.client.event
Class EventObject

java.lang.Object
  org.gwtopenmaps.openlayers.client.util.JSObjectWrapper
      org.gwtopenmaps.openlayers.client.event.EventObject

Direct Known Subclasses:

BeforeGetFeatureInfoListener.BeforeGetFeatureInfoEvent, BoxEvent, ControlActivateListener.ControlActivateEvent, ControlDeactivateListener.ControlDeactivateEvent, GetFeatureInfoListener.GetFeatureInfoEvent, LayerLoadCancelListener.LoadCancelEvent, LayerLoadEndListener.LoadEndEvent, LayerLoadStartListener.LoadStartEvent, LayerVisibilityChangedListener.VisibilityChangedEvent, MapBaseLayerChangedListener.MapBaseLayerChangedEvent, MapClickListener.MapClickEvent, MapLayerAddedListener.MapLayerAddedEvent, MapLayerChangedListener.MapLayerChangedEvent, MapLayerRemovedListener.MapLayerRemovedEvent, MapMarkerAddedListener.MapMarkerAddedEvent, MapMarkerRemovedListener.MapMarkerRemovedEvent, MapMoveEndListener.MapMoveEndEvent, MapMoveListener.MapMoveEvent, MapPopupClosedListener.MapPopupClosedEvent, MapPopupOpenedListener.MapPopupOpenedEvent, MapZoomListener.MapZoomEvent, MarkerBrowserEventListener.MarkerBrowserEvent, MeasureEvent, NoGetFeatureInfoListener.NoGetFeatureInfoEvent, VectorAfterFeatureModifiedListener.AfterFeatureModifiedEvent, VectorBeforeFeatureAddedListener.BeforeFeatureAddedEvent, VectorBeforeFeatureModifiedListener.BeforeFeatureModifiedEvent, VectorFeatureAddedListener.FeatureAddedEvent, VectorFeatureModifiedListener.FeatureModifiedEvent, VectorFeatureRemovedListener.FeatureRemovedEvent, VectorFeatureSelectedListener.FeatureSelectedEvent, VectorFeatureUnselectedListener.FeatureUnselectedEvent, VectorVertexModifiedListener.VertexModifiedEvent

public class EventObject
extends JSObjectWrapper

Base class for event objects.

Caveat: In Openlayers 2.x event handling is not yet implemented uniformly in OpenLayers. This should be fixed in version 3.x and higher.

In OpenLayers, an event object is an argument that gets passed to the listener when it is called. In GWT OpenLayers, this event object gets passed to the onHandle method of the EventHandler EventHandler when the onHandle method is called. An event object class extending this base class can wrap this event object.

Depending on which event is fired, and from which source the event is fired (e.g. Map, Layer, etc.), the event object may differ. Therefore, the addXxxListener methods (see also EventHandler) that abstract from event registration details, wrap the event object passed to onHandle in a way that is specific to the event.

Author:

Edwin Commandeur - Atlis EJS

Constructor Summary

protected

EventObject(JSObject eventObject)

Method Summary

JSObject	getElement()
JSObject	getSourceJSObject()
String	getType() Type is a string like "addlayer" or "move" denoting the type of event.
static EventObject	narrowToEventObject(JSObject object)

Methods inherited from class org.gwtopenmaps.openlayers.client.util.JSObjectWrapper

getJSObject, setJSObject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventObject

protected EventObject(JSObject eventObject)

Method Detail

narrowToEventObject

public static EventObject narrowToEventObject(JSObject object)

getElement

public JSObject getElement()

Returns:

Element as an opaque JSObject

getType

public String getType()

Type is a string like "addlayer" or "move" denoting the type of event.

Returns:

A string denoting the type of event, or null if there is no type property.

getSourceJSObject

public JSObject getSourceJSObject()

Returns:

JSObject - source object that fired the event