Quick: Support reparenting

To support reparenting, we make the compositing surface independent of
the window by using gfx::TEXTURE_TRANSPORT. We also need to be able to
keep frame data across window changes so we can reconstruct the QSGNode
tree in a new context, so extract that data into DelegatedFrameNodeData
class. Any context-specific data is still stored in DelegatedFrameNode.

Also hook up window changes to WebContents::WasShown/Hidden for Quick.
Remove checking of Qt isVisible state, this mechanism is used to sync
Chromium with Qt, not the other way around. WasShown/Hidden is
orthogonal to Show/Hide, and can use different triggers. However for
Widgets it probably makes sense to hook both up to widget visibility.

Change-Id: I1ef4b50cd61b8e54b791e03f0b41929c42fec8bf
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/webengine/render_widget_host_view_qt_delegate_quick.h b/src/webengine/render_widget_host_view_qt_delegate_quick.h
index b31a9c873..9c7bba35e 100644
--- a/src/webengine/render_widget_host_view_qt_delegate_quick.h
+++ b/src/webengine/render_widget_host_view_qt_delegate_quick.h
@@ -126,6 +126,11 @@ public:
         this->setSize(QSizeF(width, height));
     }
 
+    virtual bool supportsHardwareAcceleration() const Q_DECL_OVERRIDE
+    {
+        return false;
+    }
+
     void focusInEvent(QFocusEvent *event)
     {
         m_client->forwardEvent(event);
@@ -214,8 +219,8 @@ class RenderWidgetHostViewQtDelegateQuick : public RenderWidgetHostViewQtDelegat
 public:
     RenderWidgetHostViewQtDelegateQuick(RenderWidgetHostViewQtDelegateClient *client, QQuickItem *parent = 0);
 
-    virtual WId nativeWindowIdForCompositor() const;
     virtual void update(const QRect& rect = QRect()) Q_DECL_OVERRIDE;
+    virtual bool supportsHardwareAcceleration() const Q_DECL_OVERRIDE;
 
     virtual void itemChange(ItemChange change, const ItemChangeData &value) Q_DECL_OVERRIDE;
     virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) Q_DECL_OVERRIDE;
@@ -228,7 +233,6 @@ class RenderWidgetHostViewQtDelegateQuickPainted : public RenderWidgetHostViewQt
 public:
     RenderWidgetHostViewQtDelegateQuickPainted(RenderWidgetHostViewQtDelegateClient *client, QQuickItem *parent = 0);
 
-    virtual WId nativeWindowIdForCompositor() const Q_DECL_OVERRIDE;
     virtual void update(const QRect& rect = QRect()) Q_DECL_OVERRIDE;
 
     void paint(QPainter *painter);