Fix a corner case where a gesture sometimes doesn't start.

gestures are re-used per widget / recognizer and in the case
of a gesture getting cancelled we sometimes didn't properly
'start' the gesture on new incoming events since the manager
forgot to mark it as not running.
Add a test case and a one line fix.

Reviewed-by: Denis

Task-number: QTBUG-11076

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gui/kernel/qgesturemanager.cpp b/src/gui/kernel/qgesturemanager.cpp
index 43facef..a81d4e4 100644
--- a/src/gui/kernel/qgesturemanager.cpp
+++ b/src/gui/kernel/qgesturemanager.cpp
@@ -684,6 +684,7 @@ void QGestureManager::recycle(QGesture *gesture)
     if (recognizer) {
         gesture->setGestureCancelPolicy(QGesture::CancelNone);
         recognizer->reset(gesture);
+        m_activeGestures.remove(gesture);
     } else {
         cleanupGesturesForRemovedRecognizer(gesture);
     }