org.wicketstuff.openlayers3.behavior.view

Class ViewEventFeaturesListener

java.lang.Object

org.apache.wicket.behavior.Behavior

org.apache.wicket.behavior.AbstractAjaxBehavior

org.apache.wicket.ajax.AbstractDefaultAjaxBehavior

org.wicketstuff.openlayers3.behavior.view.ViewEventFeaturesListener

All Implemented Interfaces:

Serializable, IComponentAwareEventSink, IRequestListener, IComponentAwareHeaderContributor, IClusterable

public abstract class ViewEventFeaturesListener
extends AbstractDefaultAjaxBehavior

Provides a behavior that invokes a callback event whenever the map view changes. Specifically, this behavior will monitor the map's ol.View for 'center' and 'resolution' events. In addition to providing information on the current view, it will also provide all of the features in the view extent for the provided layer.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_PROJECTION Default projection.

Fields inherited from class org.apache.wicket.ajax.AbstractDefaultAjaxBehavior

INDICATOR

Constructor Summary

Constructors

Constructor and Description
ViewEventFeaturesListener(String projection, Vector vectorLayer)
ViewEventFeaturesListener(Vector vectorLayer)

Method Summary

Modifier and Type	Method and Description
String	getCallbackFunctionName() Javascript name of the callback function to invoke when feature data has been loaded into the layer.
String	getId() Returns a unique ID for this behavior.
abstract void	handleViewEvent(AjaxRequestTarget target, ViewEvent viewEvent, com.google.gson.JsonArray features) Callback method that is invoked when the map's view is changed.
void	renderHead(Component component, IHeaderResponse response)
protected void	respond(AjaxRequestTarget target)

Methods inherited from class org.apache.wicket.ajax.AbstractDefaultAjaxBehavior

findIndicatorId, getAttributes, getCallbackFunction, getCallbackFunctionBody, getCallbackScript, getCallbackScript, onBind, onRequest, postprocessConfiguration, renderAjaxAttributes, renderAjaxAttributes, updateAjaxAttributes

Methods inherited from class org.apache.wicket.behavior.AbstractAjaxBehavior

afterRender, bind, getCallbackUrl, getComponent, onComponentRendered, onComponentTag, onComponentTag, onUnbind, unbind

Methods inherited from class org.apache.wicket.behavior.Behavior

beforeRender, canCallListener, detach, getStatelessHint, isEnabled, isTemporary, onAttribute, onConfigure, onEvent, onException, onRemove, onTag

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.IRequestListener

rendersPage

Field Detail

DEFAULT_PROJECTION

public static final String DEFAULT_PROJECTION

Default projection.

See Also:

Constant Field Values

Constructor Detail

ViewEventFeaturesListener

public ViewEventFeaturesListener(Vector vectorLayer)

ViewEventFeaturesListener

public ViewEventFeaturesListener(String projection,
                                 Vector vectorLayer)

Method Detail

handleViewEvent

public abstract void handleViewEvent(AjaxRequestTarget target,
                                     ViewEvent viewEvent,
                                     com.google.gson.JsonArray features)

Callback method that is invoked when the map's view is changed.

Parameters:

target - Ajax request target

viewEvent - The current view

features - JSON array of features in the view

getCallbackFunctionName

public String getCallbackFunctionName()

Javascript name of the callback function to invoke when feature data has been loaded into the layer.

Returns:

String with the Javascript callback function name

getId

public String getId()

Returns a unique ID for this behavior.

Returns:

String with a unique ID

respond

protected void respond(AjaxRequestTarget target)

Specified by:

respond in class AbstractDefaultAjaxBehavior

renderHead

public void renderHead(Component component,
                       IHeaderResponse response)

Specified by:

renderHead in interface IComponentAwareHeaderContributor

Overrides:

renderHead in class AbstractDefaultAjaxBehavior