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am f3eb33f4: am 1c36cfd2: am d8fed39f: am c7a873e3: Merge "Ensure we update the active pointer id on pointer up/down." into mnc-dr-dev

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* commit 'f3eb33f437948118a9b08767f18b76f6f83ca52d':
  Ensure we update the active pointer id on pointer up/down.
This commit is contained in:
Winson Chung
2015-10-14 21:06:25 +00:00
committed by Android Git Automerger
parent d772af29d6 f3eb33f437
commit 1723305878
1 changed files with 22 additions and 0 deletions
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22
packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
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@@ -157,6 +157,14 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
mVelocityTracker.addMovement(createMotionEventForStackScroll(ev));
break;
}
case MotionEvent.ACTION_POINTER_DOWN: {
final int index = ev.getActionIndex();
mActivePointerId = ev.getPointerId(index);
mLastMotionX = (int) ev.getX(index);
mLastMotionY = (int) ev.getY(index);
mLastP = mSv.mLayoutAlgorithm.screenYToCurveProgress(mLastMotionY);
break;
}
case MotionEvent.ACTION_MOVE: {
if (mActivePointerId == INACTIVE_POINTER_ID) break;
@@ -182,6 +190,20 @@ class TaskStackViewTouchHandler implements SwipeHelper.Callback {
mLastP = layoutAlgorithm.sCurve.xToP(mLastMotionY, layoutAlgorithm.mStackRect);
break;
}
case MotionEvent.ACTION_POINTER_UP: {
int pointerIndex = ev.getActionIndex();
int pointerId = ev.getPointerId(pointerIndex);
if (pointerId == mActivePointerId) {
// Select a new active pointer id and reset the motion state
final int newPointerIndex = (pointerIndex == 0) ? 1 : 0;
mActivePointerId = ev.getPointerId(newPointerIndex);
mLastMotionX = (int) ev.getX(newPointerIndex);
mLastMotionY = (int) ev.getY(newPointerIndex);
mLastP = mSv.mLayoutAlgorithm.screenYToCurveProgress(mLastMotionY);
mVelocityTracker.clear();
}
break;
}
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP: {
// Animate the scroll back if we've cancelled