com.google.gwt.place.shared

Class PlaceController

java.lang.Object

com.google.gwt.place.shared.PlaceController

public class PlaceController
extends Object

In charge of the user's location in the app.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PlaceController.DefaultDelegate Default implementation of PlaceController.Delegate, based on Window.
static interface	PlaceController.Delegate Optional delegate in charge of Window-related events.

Constructor Summary

Constructors

Constructor and Description
PlaceController(EventBus eventBus) Deprecated. use PlaceController(EventBus)
PlaceController(EventBus eventBus) Create a new PlaceController with a PlaceController.DefaultDelegate.
PlaceController(EventBus eventBus, PlaceController.Delegate delegate) Deprecated. use PlaceController(EventBus, Delegate)
PlaceController(EventBus eventBus, PlaceController.Delegate delegate) Create a new PlaceController.

Method Summary

Modifier and Type	Method and Description
Place	getWhere() Returns the current place.
void	goTo(Place newPlace) Request a change to a new place.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

PlaceController

@Deprecated
public PlaceController(EventBus eventBus)

Deprecated. use PlaceController(EventBus)

Legacy method tied to the old location for EventBus.

PlaceController

@Deprecated
public PlaceController(EventBus eventBus,
                                   PlaceController.Delegate delegate)

Deprecated. use PlaceController(EventBus, Delegate)

Legacy method tied to the old location for EventBus.

PlaceController

public PlaceController(EventBus eventBus)

Create a new PlaceController with a PlaceController.DefaultDelegate. The DefaultDelegate is created via a call to GWT.create(), so an alternative default implementation can be provided through <replace-with> rules in a .gwt.xml file.

Parameters:

eventBus - the EventBus

PlaceController

public PlaceController(EventBus eventBus,
                       PlaceController.Delegate delegate)

Create a new PlaceController.

Parameters:

eventBus - the EventBus

delegate - the PlaceController.Delegate in charge of Window-related events

Method Detail

getWhere

public Place getWhere()

Returns the current place.

Returns:

a Place instance

goTo

public void goTo(Place newPlace)

Request a change to a new place. It is not a given that we'll actually get there. First a PlaceChangeRequestEvent will be posted to the event bus. If any receivers post a warning message to that event, it will be presented to the user via PlaceController.Delegate.confirm(String) (which is typically a call to Window.confirm(String)). If she cancels, the current location will not change. Otherwise, the location changes and a PlaceChangeEvent is posted announcing the new place.

Parameters:

newPlace - a Place instance