Merge "Do not remove surface when resetting previous PiP" into udc-qpr-dev am: 2307caaea6 am: e018eb4e7d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24590348

Change-Id: I94b74854cd48f62594536aadb2d26ad10575b456
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransition.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransition.java
index e3922d6..018d674 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransition.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransition.java
@@ -1059,7 +1059,21 @@
     private void resetPrevPip(@NonNull TransitionInfo.Change prevPipTaskChange,
             @NonNull SurfaceControl.Transaction startTransaction) {
         final SurfaceControl leash = prevPipTaskChange.getLeash();
-        startTransaction.remove(leash);
+        final Rect bounds = prevPipTaskChange.getEndAbsBounds();
+        final Point offset = prevPipTaskChange.getEndRelOffset();
+        bounds.offset(-offset.x, -offset.y);
+
+        startTransaction.setWindowCrop(leash, null);
+        startTransaction.setMatrix(leash, 1, 0, 0, 1);
+        startTransaction.setCornerRadius(leash, 0);
+        startTransaction.setPosition(leash, bounds.left, bounds.top);
+
+        if (mHasFadeOut && prevPipTaskChange.getTaskInfo().isVisible()) {
+            if (mPipAnimationController.getCurrentAnimator() != null) {
+                mPipAnimationController.getCurrentAnimator().cancel();
+            }
+            startTransaction.setAlpha(leash, 1);
+        }
 
         mHasFadeOut = false;
         mCurrentPipTaskToken = null;