Ensures display rotation triggers PiP re-position

Fixed in this CL, upon rotation change
- Updates display bounds in PipTaskOrganizer
- Issues PiP offset from PipTouchHandler (-> PipMotionHelper)

Bug: 150300422
Bug: 150275283
Test: manually rotating screen
Change-Id: I4262df6ddc306732693150f27ca0da6e294df5ab

packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java

@@ -339,7 +339,10 @@ public class PipManager implements BasePipManager, PipTaskOrganizer.PipTransitio
 
     private void updateMovementBounds(Rect animatingBounds, boolean fromImeAdjustment,
             boolean fromShelfAdjustment) {
-        // Populate inset / normal bounds and DisplayInfo from mPipBoundsHandler first.
+        mPipTaskOrganizer.onDisplayInfoChanged(mTmpDisplayInfo);
+        // Populate inset / normal bounds and DisplayInfo from mPipBoundsHandler before
+        // passing to mTouchHandler, mTouchHandler would rely on the bounds calculated by
+        // mPipBoundsHandler with up-to-dated information
         mPipBoundsHandler.onMovementBoundsChanged(mTmpInsetBounds, mTmpNormalBounds,
                 animatingBounds, mTmpDisplayInfo);
         mTouchHandler.onMovementBoundsChanged(mTmpInsetBounds, mTmpNormalBounds,

packages/SystemUI/src/com/android/systemui/pip/phone/PipMotionHelper.java

@@ -411,11 +411,9 @@ public class PipMotionHelper implements Handler.Callback, PipAppOpsListener.Call
     }
 
     private void adjustAndAnimatePipOffset(Rect originalBounds, int offset, int duration) {
-        if (offset == 0) {
-            return;
-        }
         SomeArgs args = SomeArgs.obtain();
         args.arg1 = originalBounds;
+        // offset would be zero if triggered from screen rotation.
         args.argi1 = offset;
         args.argi2 = duration;
         mHandler.sendMessage(mHandler.obtainMessage(MSG_OFFSET_ANIMATE, args));

packages/SystemUI/src/com/android/systemui/pip/phone/PipTouchHandler.java

@@ -263,6 +263,10 @@ public class PipTouchHandler {
     public void onMovementBoundsChanged(Rect insetBounds, Rect normalBounds, Rect curBounds,
             boolean fromImeAdjustment, boolean fromShelfAdjustment, int displayRotation) {
         final int bottomOffset = mIsImeShowing ? mImeHeight : 0;
+        final boolean fromDisplayRotationChanged = (mDisplayRotation != displayRotation);
+        if (fromDisplayRotationChanged) {
+            mTouchState.reset();
+        }
 
         // Re-calculate the expanded bounds
         mNormalBounds = normalBounds;
@@ -290,7 +294,7 @@ public class PipTouchHandler {
 
         // If this is from an IME or shelf adjustment, then we should move the PiP so that it is not
         // occluded by the IME or shelf.
-        if (fromImeAdjustment || fromShelfAdjustment) {
+        if (fromImeAdjustment || fromShelfAdjustment || fromDisplayRotationChanged) {
             if (mTouchState.isUserInteracting()) {
                 // Defer the update of the current movement bounds until after the user finishes
                 // touching the screen