QQuickWindowPrivate::deliverTouchCancelEvent: deliver to handlers too

Now that onGrabChanged() is unified, we have a means to tell the
handler when it loses its grab due to a touch event being canceled.

Change-Id: Idf3649242233ac7fb8c1fa80ad257ee14b861090
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/quick/items/qquickevents_p_p.h b/src/quick/items/qquickevents_p_p.h
index 455648a743..d046480f25 100644
--- a/src/quick/items/qquickevents_p_p.h
+++ b/src/quick/items/qquickevents_p_p.h
@@ -320,6 +320,9 @@ public:
     void setPassiveGrabbers(const QVector<QPointer <QQuickPointerHandler> > &grabbers) { m_passiveGrabbers = grabbers; }
     void clearPassiveGrabbers() { m_passiveGrabbers.clear(); }
 
+protected:
+    void cancelExclusiveGrabImpl(QTouchEvent *cancelEvent = nullptr);
+
 private:
     QVector2D estimatedVelocity() const;
 
@@ -339,6 +342,8 @@ private:
     bool m_grabberIsHandler : 1;
     int m_reserved : 29;
 
+    friend class QQuickWindowPrivate;
+
     Q_DISABLE_COPY(QQuickEventPoint)
 };