Merge "Consolidate leaving split screen to pip mode behavior" into tm-qpr-dev

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitLayout.java

@@ -122,6 +122,7 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
     private int mDensity;
 
     private final boolean mDimNonImeSide;
+    private ValueAnimator mDividerFlingAnimator;
 
     public SplitLayout(String windowName, Context context, Configuration configuration,
             SplitLayoutHandler splitLayoutHandler,
@@ -395,6 +396,10 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
         mSplitWindowManager.release(t);
         mDisplayImeController.removePositionProcessor(mImePositionProcessor);
         mImePositionProcessor.reset();
+        if (mDividerFlingAnimator != null) {
+            mDividerFlingAnimator.cancel();
+        }
+        resetDividerPosition();
     }
 
     public void release() {
@@ -577,13 +582,18 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
                     CUJ_SPLIT_SCREEN_RESIZE);
             return;
         }
-        ValueAnimator animator = ValueAnimator
+
+        if (mDividerFlingAnimator != null) {
+            mDividerFlingAnimator.cancel();
+        }
+
+        mDividerFlingAnimator = ValueAnimator
                 .ofInt(from, to)
                 .setDuration(duration);
-        animator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
+        mDividerFlingAnimator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
-        animator.addUpdateListener(
+        mDividerFlingAnimator.addUpdateListener(
                 animation -> updateDivideBounds((int) animation.getAnimatedValue()));
-        animator.addListener(new AnimatorListenerAdapter() {
+        mDividerFlingAnimator.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator animation) {
                 if (flingFinishedCallback != null) {
@@ -591,14 +601,15 @@ public final class SplitLayout implements DisplayInsetsController.OnInsetsChange
                 }
                 InteractionJankMonitorUtils.endTracing(
                         CUJ_SPLIT_SCREEN_RESIZE);
+                mDividerFlingAnimator = null;
             }
 
             @Override
             public void onAnimationCancel(Animator animation) {
-                setDividePosition(to, true /* applyLayoutChange */);
+                mDividerFlingAnimator = null;
             }
         });
-        animator.start();
+        mDividerFlingAnimator.start();
     }
 
     /** Switch both surface position with animation. */

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java

@@ -1040,7 +1040,7 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         mIsDividerRemoteAnimating = false;
 
         mSplitLayout.getInvisibleBounds(mTempRect1);
-        if (childrenToTop == null) {
+        if (childrenToTop == null || childrenToTop.getTopVisibleChildTaskId() == INVALID_TASK_ID) {
             mSideStage.removeAllTasks(wct, false /* toTop */);
             mMainStage.deactivate(wct, false /* toTop */);
             wct.reorder(mRootTaskInfo.token, false /* onTop */);
@@ -1299,13 +1299,6 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
         }
     }
 
-    private void onStageChildTaskEnterPip() {
-        // When the exit split-screen is caused by one of the task enters auto pip,
-        // we want both tasks to be put to bottom instead of top, otherwise it will end up
-        // a fullscreen plus a pinned task instead of pinned only at the end of the transition.
-        exitSplitScreen(null, EXIT_REASON_CHILD_TASK_ENTER_PIP);
-    }
-
     private void updateRecentTasksSplitPair() {
         if (!mShouldUpdateRecents) {
             return;
@@ -2068,7 +2061,6 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
             // Update divider state after animation so that it is still around and positioned
             // properly for the animation itself.
             mSplitLayout.release();
-            mSplitLayout.resetDividerPosition();
             mTopStageAfterFoldDismiss = STAGE_TYPE_UNDEFINED;
         }
     }
@@ -2344,11 +2336,6 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
             StageCoordinator.this.onStageChildTaskStatusChanged(this, taskId, present, visible);
         }
 
-        @Override
-        public void onChildTaskEnterPip() {
-            StageCoordinator.this.onStageChildTaskEnterPip();
-        }
-
         @Override
         public void onRootTaskVanished() {
             reset();

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java

@@ -18,7 +18,6 @@ package com.android.wm.shell.splitscreen;
 
 import static android.app.ActivityTaskManager.INVALID_TASK_ID;
 import static android.app.WindowConfiguration.WINDOWING_MODE_MULTI_WINDOW;
-import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
 import static android.view.RemoteAnimationTarget.MODE_OPENING;
 
@@ -74,8 +73,6 @@ class StageTaskListener implements ShellTaskOrganizer.TaskListener {
 
         void onChildTaskStatusChanged(int taskId, boolean present, boolean visible);
 
-        void onChildTaskEnterPip();
-
         void onRootTaskVanished();
 
         void onNoLongerSupportMultiWindow();
@@ -257,9 +254,6 @@ class StageTaskListener implements ShellTaskOrganizer.TaskListener {
                 // Status is managed/synchronized by the transition lifecycle.
                 return;
             }
-            if (taskInfo.getWindowingMode() == WINDOWING_MODE_PINNED) {
-                mCallbacks.onChildTaskEnterPip();
-            }
             sendStatusChanged();
         } else {
             throw new IllegalArgumentException(this + "\n Unknown task: " + taskInfo