Merge remote-tracking branch 'qt/4.8'

Conflicts:
	doc/src/examples/wheel.qdoc
	src/gui/util/qflickgesture.cpp
	src/gui/util/qflickgesture_p.h
	src/gui/util/qscroller.cpp
	src/gui/util/qscroller.h
	src/gui/util/qscroller_p.h
	src/gui/util/qscrollerproperties.cpp
	src/gui/util/qscrollerproperties.h
	tests/auto/qscroller/tst_qscroller.cpp

5 files changed, 45 insertions, 4 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativegridview.cpp b/src/declarative/graphicsitems/qdeclarativegridview.cpp
index 86cf6a7..34925f1 100644
--- a/src/declarative/graphicsitems/qdeclarativegridview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativegridview.cpp
@@ -1499,6 +1499,7 @@ void QDeclarativeGridView::setDelegate(QDeclarativeComponent *delegate)
         d->ownModel = true;
     }
     if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model)) {
+        int oldCount = dataModel->count();
         dataModel->setDelegate(delegate);
         if (isComponentComplete()) {
             for (int i = 0; i < d->visibleItems.count(); ++i)
@@ -1516,6 +1517,8 @@ void QDeclarativeGridView::setDelegate(QDeclarativeComponent *delegate)
             }
             d->moveReason = QDeclarativeGridViewPrivate::Other;
         }
+        if (oldCount != dataModel->count())
+            emit countChanged();
         emit delegateChanged();
     }
 }
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp
index 0757419..b52b6fc 100644
--- a/src/declarative/graphicsitems/qdeclarativelistview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp
@@ -733,6 +733,7 @@ void QDeclarativeListViewPrivate::refill(qreal from, qreal to, bool doBuffer)
     if (doBuffer && (bufferMode & BufferBefore))
         fillFrom = bufferFrom;
 
+    bool haveValidItems = false;
     int modelIndex = visibleIndex;
     qreal itemEnd = visiblePos-1;
     if (!visibleItems.isEmpty()) {
@@ -741,11 +742,13 @@ void QDeclarativeListViewPrivate::refill(qreal from, qreal to, bool doBuffer)
         int i = visibleItems.count() - 1;
         while (i > 0 && visibleItems.at(i)->index == -1)
             --i;
-        if (visibleItems.at(i)->index != -1)
+        if (visibleItems.at(i)->index != -1) {
+            haveValidItems = true;
             modelIndex = visibleItems.at(i)->index + 1;
+        }
     }
 
-    if (visibleItems.count() && (fillFrom > itemEnd+averageSize+spacing
+    if (haveValidItems && (fillFrom > itemEnd+averageSize+spacing
         || fillTo < visiblePos - averageSize - spacing)) {
         // We've jumped more than a page.  Estimate which items are now
         // visible and fill from there.
@@ -1813,6 +1816,7 @@ void QDeclarativeListView::setDelegate(QDeclarativeComponent *delegate)
         d->ownModel = true;
     }
     if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model)) {
+        int oldCount = dataModel->count();
         dataModel->setDelegate(delegate);
         if (isComponentComplete()) {
             for (int i = 0; i < d->visibleItems.count(); ++i)
@@ -1831,6 +1835,8 @@ void QDeclarativeListView::setDelegate(QDeclarativeComponent *delegate)
             }
             d->updateViewport();
         }
+        if (oldCount != dataModel->count())
+            emit countChanged();
     }
     emit delegateChanged();
 }
@@ -3403,9 +3409,9 @@ void QDeclarativeListView::itemsRemoved(int modelIndex, int count)
         }
     }
 
-    if (removedVisible && !haveVisibleIndex) {
+    if (!haveVisibleIndex) {
         d->timeline.clear();
-        if (d->itemCount == 0) {
+        if (removedVisible && d->itemCount == 0) {
             d->visibleIndex = 0;
             d->visiblePos = d->header ? d->header->size() : 0;
             d->setPosition(0);
diff --git a/src/declarative/graphicsitems/qdeclarativemousearea.cpp b/src/declarative/graphicsitems/qdeclarativemousearea.cpp
index 271a704..20ca0f6 100644
--- a/src/declarative/graphicsitems/qdeclarativemousearea.cpp
+++ b/src/declarative/graphicsitems/qdeclarativemousearea.cpp
@@ -660,6 +660,32 @@ void QDeclarativeMouseArea::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
         setHovered(false);
 }
 
+#ifndef QT_NO_CONTEXTMENU
+void QDeclarativeMouseArea::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
+{
+    bool acceptsContextMenuButton;
+#if defined(Q_OS_SYMBIAN)
+    // In Symbian a Long Tap on the screen will trigger. See QSymbianControl::HandleLongTapEventL().
+    acceptsContextMenuButton = acceptedButtons() & Qt::LeftButton;
+#elif defined(Q_WS_WINCE)
+    // ### WinCE can trigger context menu event with a gesture in the left button or a
+    // click with the right button. Since we have no way here to differentiate them when
+    // event happens, accepting either of the them will block the event.
+    acceptsContextMenuButton = acceptedButtons() & (Qt::LeftButton | Qt::RightButton);
+#else
+    acceptsContextMenuButton = acceptedButtons() & Qt::RightButton;
+#endif
+
+    if (isEnabled() && event->reason() == QGraphicsSceneContextMenuEvent::Mouse
+        && acceptsContextMenuButton) {
+        // Do not let the context menu event propagate to items behind.
+        return;
+    }
+
+    QDeclarativeItem::contextMenuEvent(event);
+}
+#endif // QT_NO_CONTEXTMENU
+
 bool QDeclarativeMouseArea::sceneEvent(QEvent *event)
 {
     bool rv = QDeclarativeItem::sceneEvent(event);
diff --git a/src/declarative/graphicsitems/qdeclarativemousearea_p.h b/src/declarative/graphicsitems/qdeclarativemousearea_p.h
index c3e5d3d..8fd453f 100644
--- a/src/declarative/graphicsitems/qdeclarativemousearea_p.h
+++ b/src/declarative/graphicsitems/qdeclarativemousearea_p.h
@@ -190,6 +190,9 @@ protected:
     void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
     void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
     void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+#ifndef QT_NO_CONTEXTMENU
+    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
+#endif // QT_NO_CONTEXTMENU
     bool sceneEvent(QEvent *);
     bool sendMouseEvent(QGraphicsSceneMouseEvent *event);
     bool sceneEventFilter(QGraphicsItem *i, QEvent *e);
diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
index 9a74b50..79e52cd 100644
--- a/src/declarative/graphicsitems/qdeclarativepathview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -1021,9 +1021,12 @@ void QDeclarativePathView::setDelegate(QDeclarativeComponent *delegate)
         d->ownModel = true;
     }
     if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model)) {
+        int oldCount = dataModel->count();
         dataModel->setDelegate(delegate);
         d->modelCount = dataModel->count();
         d->regenerate();
+        if (oldCount != dataModel->count())
+            emit countChanged();
         emit delegateChanged();
     }
 }