_setDidMoveSwipeSnapshotCallback's block should only be called if the snapshot is...

[WebKit-https.git] / Source / WebKit2 / ChangeLog

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+2014-08-28  Tim Horton  <timothy_horton@apple.com>
+
+        _setDidMoveSwipeSnapshotCallback's block should only be called if the snapshot is going to move
+        https://bugs.webkit.org/show_bug.cgi?id=136354
+        <rdar://problem/18167791>
+
+        Reviewed by Simon Fraser.
+
+        * UIProcess/API/Cocoa/WKViewPrivate.h:
+        Update the comment to note the new behavior.
+
+        * UIProcess/mac/ViewGestureControllerMac.mm:
+        (WebKit::ViewGestureController::beginSwipeGesture):
+        Don't call the block until the snapshot is actually moving (if the snapshot
+        never moves because it's behind the live view, don't call the block at all).
+
 2014-08-28  Tim Horton  <timothy_horton@apple.com>
 
         Occasional thread-safety-related crashes on the ServicesController queue