Open a Desktop mode app in full screen while split screen is active.

Fixes: 372185677
Flag: com.android.window.flags.enable_desktop_windowing_mode
Test: manual test and atest StageCoordinatorTests
Change-Id: I16a04c3952627c308c8e6633276ff234bdc4c887

1 files changed, 10 insertions, 0 deletions

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 e48c887c625f..d0c21c9ec7c0 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
@@ -20,6 +20,7 @@ import static android.app.ActivityOptions.MODE_BACKGROUND_ACTIVITY_START_ALLOW_A
 import static android.app.ActivityTaskManager.INVALID_TASK_ID;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
+import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
 import static android.content.Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT;
@@ -145,6 +146,7 @@ import com.android.wm.shell.protolog.ShellProtoLogGroup;
 import com.android.wm.shell.recents.RecentTasksController;
 import com.android.wm.shell.shared.TransactionPool;
 import com.android.wm.shell.shared.TransitionUtil;
+import com.android.wm.shell.shared.desktopmode.DesktopModeStatus;
 import com.android.wm.shell.shared.split.SplitBounds;
 import com.android.wm.shell.shared.split.SplitScreenConstants.PersistentSnapPosition;
 import com.android.wm.shell.shared.split.SplitScreenConstants.SplitIndex;
@@ -2766,6 +2768,8 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         final @WindowManager.TransitionType int type = request.getType();
         final boolean isOpening = isOpeningType(type);
         final boolean inFullscreen = triggerTask.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
+        final boolean inDesktopMode = DesktopModeStatus.canEnterDesktopMode(mContext)
+                && triggerTask.getWindowingMode() == WINDOWING_MODE_FREEFORM;
         final StageTaskListener stage = getStageOfTask(triggerTask);
 
         if (isOpening && inFullscreen) {
@@ -2820,6 +2824,12 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
                     mSplitTransitions.setDismissTransition(transition, stageType,
                             EXIT_REASON_FULLSCREEN_REQUEST);
                 }
+            } else if (isOpening && inDesktopMode) {
+                // If the app being opened is in Desktop mode, set it to full screen and dismiss
+                // split screen stage.
+                prepareExitSplitScreen(STAGE_TYPE_UNDEFINED, out);
+                out.setWindowingMode(triggerTask.token, WINDOWING_MODE_UNDEFINED)
+                        .setBounds(triggerTask.token, null);
             } else if (isOpening && inFullscreen) {
                 final int activityType = triggerTask.getActivityType();
                 if (activityType == ACTIVITY_TYPE_HOME || activityType == ACTIVITY_TYPE_RECENTS) {