Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml:
  Don't leak ScopeChainNode's
  Rename 'plugins\qmldebugging' (work around qmake issues)
  Correct the "module not installed" error handling
  Flickable uses the flick velocity to determine whether to retain grab
  Make addImportPath() work for windows paths starting with lower case
  Report any exceptions occurring in WorkerScript javascript code
  MouseArea docs - link to onCanceled() from onReleased()

1 files changed, 6 insertions, 1 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp
index a12a5ed..8b2d094 100644
--- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp
+++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp
@@ -53,6 +53,10 @@ QT_BEGIN_NAMESPACE
 // before we perform a flick.
 static const int FlickThreshold = 20;
 
+// RetainGrabVelocity is the maxmimum instantaneous velocity that
+// will ensure the  Flickable retains the grab on consecutive flicks.
+static const int RetainGrabVelocity = 15;
+
 QDeclarativeFlickableVisibleArea::QDeclarativeFlickableVisibleArea(QDeclarativeFlickable *parent)
     : QObject(parent), flickable(parent), m_xPosition(0.), m_widthRatio(0.)
     , m_yPosition(0.), m_heightRatio(0.)
@@ -672,7 +676,8 @@ void QDeclarativeFlickable::setFlickableDirection(FlickableDirection direction)
 void QDeclarativeFlickablePrivate::handleMousePressEvent(QGraphicsSceneMouseEvent *event)
 {
     Q_Q(QDeclarativeFlickable);
-    if (interactive && timeline.isActive() && (qAbs(hData.velocity) > 10 || qAbs(vData.velocity) > 10))
+    if (interactive && timeline.isActive()
+            && (qAbs(hData.smoothVelocity.value()) > RetainGrabVelocity || qAbs(vData.smoothVelocity.value()) > RetainGrabVelocity))
         stealMouse = true; // If we've been flicked then steal the click.
     else
         stealMouse = false;