Fix weirdness when home task forces rotation

am: a6c05d5151

* commit 'a6c05d5151027f902c5c56bded008cbe15bd6301':
  Fix weirdness when home task forces rotation

Change-Id: I498aac192a0f819cf0e28c8b32b99380a1acbd0d

packages/SystemUI/src/com/android/systemui/stackdivider/Divider.java

@@ -39,6 +39,7 @@ import java.io.PrintWriter;
 public class Divider extends SystemUI {
     private DividerWindowManager mWindowManager;
     private DividerView mView;
+    private final DividerState mDividerState = new DividerState();
     private DockDividerVisibilityListener mDockDividerVisibilityListener;
     private boolean mVisible = false;
     private boolean mMinimized = false;
@@ -76,7 +77,7 @@ public class Divider extends SystemUI {
         final int width = landscape ? size : MATCH_PARENT;
         final int height = landscape ? MATCH_PARENT : size;
         mWindowManager.add(mView, width, height);
-        mView.setWindowManager(mWindowManager);
+        mView.injectDependencies(mWindowManager, mDividerState);
     }
 
     private void removeDivider() {

packages/SystemUI/src/com/android/systemui/stackdivider/DividerState.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.systemui.stackdivider;
+
+/**
+ * Class to hold state of divider that needs to persist across configuration changes.
+ */
+public class DividerState {
+    public boolean animateAfterRecentsDrawn;
+    public boolean growAfterRecentsDrawn;
+}

packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java

@@ -30,12 +30,12 @@ import android.graphics.Rect;
 import android.graphics.Region.Op;
 import android.hardware.display.DisplayManager;
 import android.os.Bundle;
+import android.os.Handler;
 import android.util.AttributeSet;
 import android.view.Display;
 import android.view.DisplayInfo;
 import android.view.GestureDetector;
 import android.view.GestureDetector.SimpleOnGestureListener;
-import android.view.HapticFeedbackConstants;
 import android.view.MotionEvent;
 import android.view.PointerIcon;
 import android.view.VelocityTracker;
@@ -141,8 +141,6 @@ public class DividerView extends FrameLayout implements OnTouchListener,
     private DividerSnapAlgorithm mSnapAlgorithm;
     private final Rect mStableInsets = new Rect();
 
-    private boolean mAnimateAfterRecentsDrawn;
-    private boolean mGrowAfterRecentsDrawn;
     private boolean mGrowRecents;
     private ValueAnimator mCurrentAnimator;
     private boolean mEntranceAnimationRunning;
@@ -151,6 +149,8 @@ public class DividerView extends FrameLayout implements OnTouchListener,
     private GestureDetector mGestureDetector;
     private boolean mDockedStackMinimized;
     private boolean mAdjustedForIme;
+    private DividerState mState;
+    private final Handler mHandler = new Handler();
 
     private final AccessibilityDelegate mHandleDelegate = new AccessibilityDelegate() {
         @Override
@@ -335,8 +335,9 @@ public class DividerView extends FrameLayout implements OnTouchListener,
         }
     }
 
-    public void setWindowManager(DividerWindowManager windowManager) {
+    public void injectDependencies(DividerWindowManager windowManager, DividerState dividerState) {
         mWindowManager = windowManager;
+        mState = dividerState;
     }
 
     public WindowManagerProxy getWindowManagerProxy() {
@@ -558,7 +559,7 @@ public class DividerView extends FrameLayout implements OnTouchListener,
                 if (endDelay == 0 || mCancelled) {
                     endAction.run();
                 } else {
-                    postDelayed(endAction, endDelay);
+                    mHandler.postDelayed(endAction, endDelay);
                 }
             }
         });
@@ -1048,15 +1049,15 @@ public class DividerView extends FrameLayout implements OnTouchListener,
     public final void onBusEvent(RecentsActivityStartingEvent recentsActivityStartingEvent) {
         if (mGrowRecents && getWindowManagerProxy().getDockSide() == WindowManager.DOCKED_TOP
                 && getCurrentPosition() == getSnapAlgorithm().getLastSplitTarget().position) {
-            mGrowAfterRecentsDrawn = true;
+            mState.growAfterRecentsDrawn = true;
             startDragging(false /* animate */, false /* touching */);
         }
     }
 
     public final void onBusEvent(DockedTopTaskEvent event) {
         if (event.dragMode == NavigationBarGestureHelper.DRAG_MODE_NONE) {
-            mGrowAfterRecentsDrawn = false;
-            mAnimateAfterRecentsDrawn = true;
+            mState.growAfterRecentsDrawn = false;
+            mState.animateAfterRecentsDrawn = true;
             startDragging(false /* animate */, false /* touching */);
         }
         updateDockSide();
@@ -1068,11 +1069,11 @@ public class DividerView extends FrameLayout implements OnTouchListener,
     }
 
     public final void onBusEvent(RecentsDrawnEvent drawnEvent) {
-        if (mAnimateAfterRecentsDrawn) {
-            mAnimateAfterRecentsDrawn = false;
+        if (mState.animateAfterRecentsDrawn) {
+            mState.animateAfterRecentsDrawn = false;
             updateDockSide();
 
-            post(() -> {
+            mHandler.post(() -> {
                 // Delay switching resizing mode because this might cause jank in recents animation
                 // that's longer than this animation.
                 stopDragging(getCurrentPosition(), mSnapAlgorithm.getMiddleTarget(),
@@ -1080,8 +1081,8 @@ public class DividerView extends FrameLayout implements OnTouchListener,
                         200 /* endDelay */);
             });
         }
-        if (mGrowAfterRecentsDrawn) {
-            mGrowAfterRecentsDrawn = false;
+        if (mState.growAfterRecentsDrawn) {
+            mState.growAfterRecentsDrawn = false;
             updateDockSide();
             EventBus.getDefault().send(new RecentsGrowingEvent());
             stopDragging(getCurrentPosition(), mSnapAlgorithm.getMiddleTarget(), 336,

services/core/java/com/android/server/wm/WindowManagerService.java

@@ -3569,6 +3569,8 @@ public class WindowManagerService extends IWindowManager.Stub
         final ArrayList<Task> tasks = displayContent.getTasks();
         final boolean inMultiWindow = isStackVisibleLocked(DOCKED_STACK_ID)
                 || isStackVisibleLocked(FREEFORM_WORKSPACE_STACK_ID);
+        final boolean dockMinimized =
+                getDefaultDisplayContentLocked().mDividerControllerLocked.isMinimizedDock();
         for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
             AppTokenList tokens = tasks.get(taskNdx).mAppTokens;
             final int firstToken = tokens.size() - 1;
@@ -3603,8 +3605,10 @@ public class WindowManagerService extends IWindowManager.Stub
                     continue;
                 }
 
-                // No app except the home app may specify the screen orientation in multi-window.
-                if (inMultiWindow && !atoken.mTask.isHomeTask()) {
+                // No app except the home app may specify the screen orientation in multi-window,
+                // and only if the docked stack is minimized to avoid weirdness when home task
+                // temporarily gets moved to the front.
+                if (inMultiWindow && (!atoken.mTask.isHomeTask() || !dockMinimized)) {
                     continue;
                 }