Handle QEvent::TouchCancel in QML_TRANSLATE_TOUCH_TO_MOUSE mode

Just remove the mouse grab.  The elements will react to this and
correct their state.

Change-Id: I8b91295606eaface54aa95b1500e7b138d9bc82e
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

diff --git a/src/quick/items/qquickcanvas.cpp b/src/quick/items/qquickcanvas.cpp
index 461236d..d73701e 100644 (file)
--- a/src/quick/items/qquickcanvas.cpp
+++ b/src/quick/items/qquickcanvas.cpp
@@ -374,6 +374,14 @@ static QQuickMouseEventEx touchToMouseEvent(QEvent::Type type, const QTouchEvent
 
 void QQuickCanvasPrivate::translateTouchToMouse(QTouchEvent *event)
 {
+    if (event->type() == QEvent::TouchCancel) {
+        touchMouseId = -1;
+        if (!mouseGrabberItem)
+            return;
+        mouseGrabberItem->ungrabMouse();
+        mouseGrabberItem = 0;
+        return;
+    }
     for (int i = 0; i < event->touchPoints().count(); ++i) {
         QTouchEvent::TouchPoint p = event->touchPoints().at(i);
         if (touchMouseId == -1 && p.state() & Qt::TouchPointPressed) {