Guard against event recursion in QQuickDrag.

Do not emit drag events recursively as this will send events out of
order and corrupt the grab stack.

Change-Id: Ieede7123c96304e23c809ac895318ed76c8c95c1
Reviewed-by: Martin Jones <martin.jones@nokia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/quick/items/qquickdrag_p.h b/src/quick/items/qquickdrag_p.h
index 7b568ecc58..9390401a27 100644
--- a/src/quick/items/qquickdrag_p.h
+++ b/src/quick/items/qquickdrag_p.h
@@ -90,6 +90,8 @@ public:
     void setTarget(QObject *target) { m_target = target; }
     void resetTarget() { m_target = 0; }
 
+    bool isEmpty() const { return m_items.isEmpty(); }
+
     typedef ItemList::iterator iterator;
     iterator begin() { return m_items.begin(); }
     iterator end() { return m_items.end(); }