Add getter for active EventBus
Review by: unnurg@google.com
git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10701 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/src/com/google/gwt/activity/shared/ActivityManager.java b/user/src/com/google/gwt/activity/shared/ActivityManager.java
index c961357..cc56355 100644
--- a/user/src/com/google/gwt/activity/shared/ActivityManager.java
+++ b/user/src/com/google/gwt/activity/shared/ActivityManager.java
@@ -91,6 +91,18 @@
}
/**
+ * Returns an event bus which is in use by the currently running activity.
+ * <p>
+ * Any handlers attached to the returned event bus will be de-registered when
+ * the current activity is stopped.
+ *
+ * @return the event bus used by the current activity
+ */
+ public EventBus getActiveEventBus() {
+ return stopperedEventBus;
+ }
+
+ /**
* Deactivate the current activity, find the next one from our ActivityMapper,
* and start it.
* <p>
diff --git a/user/test/com/google/gwt/activity/shared/ActivityManagerTest.java b/user/test/com/google/gwt/activity/shared/ActivityManagerTest.java
index 62a4af8..7b98368 100644
--- a/user/test/com/google/gwt/activity/shared/ActivityManagerTest.java
+++ b/user/test/com/google/gwt/activity/shared/ActivityManagerTest.java
@@ -139,6 +139,37 @@
private ActivityManager manager = new ActivityManager(
myMap, eventBus);
+ public void testActiveEventBus() {
+ final AsyncActivity asyncActivity1 = new AsyncActivity(new MyView());
+ final AsyncActivity asyncActivity2 = new AsyncActivity(new MyView());
+
+ ActivityMapper map = new ActivityMapper() {
+ public Activity getActivity(Place place) {
+ if (place.equals(place1)) {
+ return asyncActivity1;
+ }
+ if (place.equals(place2)) {
+ return asyncActivity2;
+ }
+
+ return null;
+ }
+ };
+
+ manager = new ActivityManager(map, eventBus);
+ manager.setDisplay(realDisplay);
+
+ eventBus.fireEvent(new PlaceChangeEvent(place1));
+ com.google.web.bindery.event.shared.EventBus activeEventBus =
+ manager.getActiveEventBus();
+
+ activeEventBus.addHandler(Event.TYPE, new Handler());
+ assertEquals(1, eventBus.getCount(Event.TYPE));
+
+ eventBus.fireEvent(new PlaceChangeEvent(place2));
+ assertEquals(0, eventBus.getCount(Event.TYPE));
+ }
+
public void testAsyncDispatch() {
final AsyncActivity asyncActivity1 = new AsyncActivity(new MyView());
final AsyncActivity asyncActivity2 = new AsyncActivity(new MyView());
