Workaround for handling the restart of an already visible task

- If a task is already visible, then startActivity is a no-op and the
  remote transition that launcher expects to run is not started. As a
  workaround (until restarts are an actual transition), listen for
  the case where a task is restarted and invoke the end callbacks

Fixes: 286016555
Test: Repro steps on the bug
Change-Id: Iec3ab97c8817a5e95399cec90f891d65f369d234

quickstep/src/com/android/launcher3/QuickstepTransitionManager.java

@@ -144,6 +144,7 @@ import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.util.SurfaceTransaction;
 import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.SurfaceTransactionApplier;
+import com.android.quickstep.util.TaskRestartedDuringLaunchListener;
 import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.FloatingWidgetView;
 import com.android.quickstep.views.RecentsView;
@@ -299,6 +300,12 @@ public class QuickstepTransitionManager implements OnDeviceProfileChangeListener
         boolean fromRecents = isLaunchingFromRecents(v, null /* targets */);
         RunnableList onEndCallback = new RunnableList();
 
+        // Handle the case where an already visible task is launched which results in no transition
+        TaskRestartedDuringLaunchListener restartedListener =
+                new TaskRestartedDuringLaunchListener();
+        restartedListener.register(onEndCallback::executeAllAndDestroy);
+        onEndCallback.add(restartedListener::unregister);
+
         mAppLaunchRunner = new AppLaunchAnimationRunner(v, onEndCallback);
         ItemInfo tag = (ItemInfo) v.getTag();
         if (tag != null && tag.shouldUseBackgroundAnimation()) {