Merge remote-tracking branch 'origin/5.3' into 5.4

Conflicts:
	src/qml/jsruntime/qv4include.cpp
	src/quick/items/qquickrendercontrol.cpp
	src/quick/items/qquickrendercontrol_p.h
	src/quickwidgets/qquickwidget.cpp

Change-Id: Ib2dc0051a38cd283a37a7665eb4a76f6f7ec8b15

5 files changed, 22 insertions, 13 deletions

diff --git a/src/quick/items/qquickframebufferobject.cpp b/src/quick/items/qquickframebufferobject.cpp
index 0a8ad36476..fea6aadc23 100644
--- a/src/quick/items/qquickframebufferobject.cpp
+++ b/src/quick/items/qquickframebufferobject.cpp
@@ -235,8 +235,12 @@ QSGNode *QQuickFramebufferObject::updatePaintNode(QSGNode *node, UpdatePaintNode
 
     n->renderer->synchronize(this);
 
+    QSize minFboSize = d->sceneGraphContext()->minimumFBOSize();
+    QSize desiredFboSize(qMax<int>(minFboSize.width(), width()),
+                         qMax<int>(minFboSize.height(), height()));
+
     if (n->fbo && (d->followsItemSize || n->invalidatePending)) {
-        if (n->fbo->width() != width() || n->fbo->height() != height()) {
+        if (n->fbo->size() != desiredFboSize) {
             delete n->fbo;
             n->fbo = 0;
             delete n->msDisplayFbo;
@@ -245,10 +249,7 @@ QSGNode *QQuickFramebufferObject::updatePaintNode(QSGNode *node, UpdatePaintNode
     }
 
     if (!n->fbo) {
-        QSize minFboSize = d->sceneGraphContext()->minimumFBOSize();
-        QSize fboSize(qMax<int>(minFboSize.width(), width()),
-                      qMax<int>(minFboSize.height(), height()));
-        n->fbo = n->renderer->createFramebufferObject(fboSize);
+        n->fbo = n->renderer->createFramebufferObject(desiredFboSize);
 
         GLuint displayTexture = n->fbo->texture();
 
diff --git a/src/quick/items/qquickimagebase.cpp b/src/quick/items/qquickimagebase.cpp
index bf67cbef26..738430dc89 100644
--- a/src/quick/items/qquickimagebase.cpp
+++ b/src/quick/items/qquickimagebase.cpp
@@ -292,10 +292,10 @@ void QQuickImageBase::handleWindowChanged(QQuickWindow* window)
         connect(window, SIGNAL(screenChanged(QScreen*)), this, SLOT(handleScreenChanged(QScreen*)));
 }
 
-void QQuickImageBase::handleScreenChanged(QScreen*)
+void QQuickImageBase::handleScreenChanged(QScreen* screen)
 {
     // Screen DPI might have changed, reload images on screen change.
-    if (isComponentComplete())
+    if (screen && isComponentComplete())
         load();
 }
 
diff --git a/src/quick/items/qquickimagebase_p.h b/src/quick/items/qquickimagebase_p.h
index 67f1e81cae..a3d9e3ace2 100644
--- a/src/quick/items/qquickimagebase_p.h
+++ b/src/quick/items/qquickimagebase_p.h
@@ -107,7 +107,7 @@ private Q_SLOTS:
     virtual void requestFinished();
     void requestProgress(qint64,qint64);
     void handleWindowChanged(QQuickWindow *window);
-    void handleScreenChanged(QScreen *);
+    void handleScreenChanged(QScreen *screen);
 
 private:
     Q_DISABLE_COPY(QQuickImageBase)
diff --git a/src/quick/items/qquickpathview.cpp b/src/quick/items/qquickpathview.cpp
index efce244f7d..216b7cc7c1 100644
--- a/src/quick/items/qquickpathview.cpp
+++ b/src/quick/items/qquickpathview.cpp
@@ -1599,6 +1599,7 @@ void QQuickPathViewPrivate::handleMousePressEvent(QMouseEvent *event)
         return;
 
     startPoint = pointNear(event->localPos(), &startPc);
+    startPos = event->localPos();
     if (idx == items.count()) {
         qreal distance = qAbs(event->localPos().x() - startPoint.x()) + qAbs(event->localPos().y() - startPoint.y());
         if (distance > dragMargin)
@@ -1621,8 +1622,6 @@ void QQuickPathView::mouseMoveEvent(QMouseEvent *event)
     Q_D(QQuickPathView);
     if (d->interactive) {
         d->handleMouseMoveEvent(event);
-        if (d->stealMouse)
-            setKeepMouseGrab(true);
         event->accept();
     } else {
         QQuickItem::mouseMoveEvent(event);
@@ -1639,9 +1638,17 @@ void QQuickPathViewPrivate::handleMouseMoveEvent(QMouseEvent *event)
     qreal newPc;
     QPointF pathPoint = pointNear(event->localPos(), &newPc);
     if (!stealMouse) {
-        QPointF delta = pathPoint - startPoint;
-        if (qAbs(delta.x()) > qApp->styleHints()->startDragDistance() || qAbs(delta.y()) > qApp->styleHints()->startDragDistance()) {
-            stealMouse = true;
+        QPointF posDelta = event->localPos() - startPos;
+        if (QQuickWindowPrivate::dragOverThreshold(posDelta.y(), Qt::YAxis, event) || QQuickWindowPrivate::dragOverThreshold(posDelta.x(), Qt::XAxis, event)) {
+            // The touch has exceeded the threshold. If the movement along the path is close to the drag threshold
+            // then we'll assume that this gesture targets the PathView. This ensures PathView gesture grabbing
+            // is in sync with other items.
+            QPointF pathDelta = pathPoint - startPoint;
+            if (qAbs(pathDelta.x()) > qApp->styleHints()->startDragDistance() * 0.8
+                    || qAbs(pathDelta.y()) > qApp->styleHints()->startDragDistance() * 0.8) {
+                stealMouse = true;
+                q->setKeepMouseGrab(true);
+            }
         }
     } else {
         moveReason = QQuickPathViewPrivate::Mouse;
diff --git a/src/quick/items/qquickpathview_p_p.h b/src/quick/items/qquickpathview_p_p.h
index e21f3757e6..59a7ac231b 100644
--- a/src/quick/items/qquickpathview_p_p.h
+++ b/src/quick/items/qquickpathview_p_p.h
@@ -135,6 +135,7 @@ public:
     qreal currentItemOffset;
     qreal startPc;
     QPointF startPoint;
+    QPointF startPos;
     qreal offset;
     qreal offsetAdj;
     qreal mappedRange;