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Bug 809565: Skip onScale and onScaleEnd events if onScaleBegin returned false to make reflow-on-zoom assumptions on order of these events remain valid. [r=kats]

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This commit is contained in:
Scott Johnson 2012-11-14 15:58:12 -08:00
parent bb1d6972af
commit fb58fcba20
1 changed files with 14 additions and 3 deletions
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17
mobile/android/base/ui/SimpleScaleGestureDetector.java
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@ -40,6 +40,7 @@ public class SimpleScaleGestureDetector {
private SimpleScaleGestureListener mListener;
private long mLastEventTime;
private boolean mScaleResult;
/* Information about all pointers that are down. */
private LinkedList<PointerInfo> mPointerInfo;
@ -206,9 +207,19 @@ public class SimpleScaleGestureDetector {
/* Sends the requested scale gesture notification to the listener. */
private void sendScaleGesture(EventType eventType) {
switch (eventType) {
case BEGIN: mListener.onScaleBegin(this); break;
case CONTINUE: mListener.onScale(this); break;
case END: mListener.onScaleEnd(this); break;
case BEGIN:
mScaleResult = mListener.onScaleBegin(this);
break;
case CONTINUE:
if (mScaleResult) {
mListener.onScale(this);
}
break;
case END:
if (mScaleResult) {
mListener.onScaleEnd(this);
}
break;
}
}