Render the widgets view using the scene graph into a QOpenGLWidget

This means that widgets application now need to setup the GL context
sharing as well. QWebEngineWidgets::initialize() must be called,
which has the same effect as QWebEngine::initialize().
The QtWebEngineWidgets now depends on the QtWebEngine module to make
this happen.

Since QOpenGLWidget is only available in Qt 5.3, this patch also
disables the webenginewidgets module completely when building using
Qt 5.2.

Change-Id: I0e99a779d1eb080f2ccf5a338ff0763ad64e6eba
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/render_widget_host_view_qt_delegate.h b/src/core/render_widget_host_view_qt_delegate.h
index 08d66745b..ddfa2b3c8 100644
--- a/src/core/render_widget_host_view_qt_delegate.h
+++ b/src/core/render_widget_host_view_qt_delegate.h
@@ -51,8 +51,8 @@ QT_BEGIN_NAMESPACE
 class QCursor;
 class QEvent;
 class QPainter;
-class QQuickWindow;
 class QSGNode;
+class QSGRenderContext;
 class QVariant;
 class QWindow;
 class QInputMethodEvent;
@@ -64,7 +64,7 @@ class QWEBENGINE_EXPORT RenderWidgetHostViewQtDelegateClient {
 public:
     virtual ~RenderWidgetHostViewQtDelegateClient() { }
     virtual void paint(QPainter *, const QRectF& boundingRect) = 0;
-    virtual QSGNode *updatePaintNode(QSGNode *, QQuickWindow *) = 0;
+    virtual QSGNode *updatePaintNode(QSGNode *, QSGRenderContext *) = 0;
     virtual void fetchBackingStore() = 0;
     virtual void notifyResize() = 0;
     virtual bool forwardEvent(QEvent *) = 0;