Merge "Exit split-screen if one of the splits is empty" into tm-qpr-dev am: e4b7302acc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19523989

Change-Id: I5f576ec82c3c357331e496d79803ddb0ac36936d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

2 files changed, 40 insertions, 12 deletions

diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
index d6120c409506..8de649ef69eb 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenController.java
@@ -337,17 +337,39 @@ public class SplitScreenController implements DragAndDropPolicy.Starter,
     }
 
     public void startTask(int taskId, @SplitPosition int position, @Nullable Bundle options) {
+        final int[] result = new int[1];
+        IRemoteAnimationRunner wrapper = new IRemoteAnimationRunner.Stub() {
+            @Override
+            public void onAnimationStart(@WindowManager.TransitionOldType int transit,
+                    RemoteAnimationTarget[] apps,
+                    RemoteAnimationTarget[] wallpapers,
+                    RemoteAnimationTarget[] nonApps,
+                    final IRemoteAnimationFinishedCallback finishedCallback) {
+                try {
+                    finishedCallback.onAnimationFinished();
+                } catch (RemoteException e) {
+                    Slog.e(TAG, "Failed to invoke onAnimationFinished", e);
+                }
+                if (result[0] == START_SUCCESS || result[0] == START_TASK_TO_FRONT) {
+                    final WindowContainerTransaction evictWct = new WindowContainerTransaction();
+                    mStageCoordinator.prepareEvictNonOpeningChildTasks(position, apps, evictWct);
+                    mSyncQueue.queue(evictWct);
+                }
+            }
+            @Override
+            public void onAnimationCancelled(boolean isKeyguardOccluded) {
+            }
+        };
         options = mStageCoordinator.resolveStartStage(STAGE_TYPE_UNDEFINED, position, options,
                 null /* wct */);
+        RemoteAnimationAdapter wrappedAdapter = new RemoteAnimationAdapter(wrapper,
+                0 /* duration */, 0 /* statusBarTransitionDelay */);
+        ActivityOptions activityOptions = ActivityOptions.fromBundle(options);
+        activityOptions.update(ActivityOptions.makeRemoteAnimation(wrappedAdapter));
 
         try {
-            final WindowContainerTransaction evictWct = new WindowContainerTransaction();
-            mStageCoordinator.prepareEvictChildTasks(position, evictWct);
-            final int result =
-                    ActivityTaskManager.getService().startActivityFromRecents(taskId, options);
-            if (result == START_SUCCESS || result == START_TASK_TO_FRONT) {
-                mSyncQueue.queue(evictWct);
-            }
+            result[0] = ActivityTaskManager.getService().startActivityFromRecents(taskId,
+                    activityOptions.toBundle());
         } catch (RemoteException e) {
             Slog.e(TAG, "Failed to launch task", e);
         }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
index 80ef74e63940..8e1ae397ea64 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java
@@ -452,10 +452,16 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
                     IRemoteAnimationFinishedCallback finishedCallback,
                     SurfaceControl.Transaction t) {
                 if (apps == null || apps.length == 0) {
-                    // Switch the split position if launching as MULTIPLE_TASK failed.
-                    if ((fillInIntent.getFlags() & FLAG_ACTIVITY_MULTIPLE_TASK) != 0) {
-                        setSideStagePosition(SplitLayout.reversePosition(
-                                getSideStagePosition()), null);
+                    if (mMainStage.getChildCount() == 0 || mSideStage.getChildCount() == 0) {
+                        mMainExecutor.execute(() ->
+                                exitSplitScreen(mMainStage.getChildCount() == 0
+                                        ? mSideStage : mMainStage, EXIT_REASON_UNKNOWN));
+                    } else {
+                        // Switch the split position if launching as MULTIPLE_TASK failed.
+                        if ((fillInIntent.getFlags() & FLAG_ACTIVITY_MULTIPLE_TASK) != 0) {
+                            setSideStagePosition(SplitLayout.reversePosition(
+                                    getSideStagePosition()), null);
+                        }
                     }
 
                     // Do nothing when the animation was cancelled.
@@ -651,7 +657,7 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         mShouldUpdateRecents = true;
         // If any stage has no child after animation finished, it means that split will display
         // nothing, such status will happen if task and intent is same app but not support
-        // multi-instagce, we should exit split and expand that app as full screen.
+        // multi-instance, we should exit split and expand that app as full screen.
         if (!cancel && (mMainStage.getChildCount() == 0 || mSideStage.getChildCount() == 0)) {
             mMainExecutor.execute(() ->
                     exitSplitScreen(mMainStage.getChildCount() == 0