From ad0d549d4cc13433f77c1ac8f0ab379c83d93f28 Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@nokia.com>
Date: Fri, 24 Feb 2012 16:36:50 +0100
Subject: Imported WebKit commit bb52bf3c0119e8a128cd93afe5572413a8617de9
 (http://svn.webkit.org/repository/webkit/trunk@108790)

---
 Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp | 74 +++++------------------
 1 file changed, 14 insertions(+), 60 deletions(-)

(limited to 'Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp')

diff --git a/Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp b/Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp
index 22c6703c4..d164a6b85 100644
--- a/Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp
+++ b/Source/WebKit2/UIProcess/API/qt/qquickwebpage.cpp
@@ -29,6 +29,7 @@
 #include <QtQuick/QQuickCanvas>
 #include <QtQuick/QSGGeometryNode>
 #include <QtQuick/QSGMaterial>
+#include <private/qsgrendernode_p.h>
 
 QQuickWebPage::QQuickWebPage(QQuickWebView* viewportItem)
     : QQuickItem(viewportItem)
@@ -97,7 +98,7 @@ void QQuickWebPagePrivate::paintToCurrentGLContext()
     transform.scale(contentsScale, contentsScale);
 
     float opacity = computeEffectiveOpacity(q);
-    QRectF clipRect = q->parentItem()->mapRectToScene(q->parentItem()->boundingRect());
+    QRectF clipRect = viewportItem->mapRectToScene(viewportItem->boundingRect());
 
     if (!clipRect.isValid())
         return;
@@ -109,57 +110,22 @@ void QQuickWebPagePrivate::paintToCurrentGLContext()
     drawingArea->paintToCurrentGLContext(transform, opacity, clipRect);
 }
 
-struct PageProxyMaterial;
-struct PageProxyNode;
-
-// FIXME: temporary until Qt Scenegraph will support custom painting.
-struct PageProxyMaterialShader : public QSGMaterialShader {
-    virtual void updateState(const RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial);
-    virtual char const* const* attributeNames() const
-    {
-        static char const* const attr[] = { "vertex", 0 };
-        return attr;
-    }
-
-    // vertexShader and fragmentShader are no-op shaders.
-    // All real painting is gone by TextureMapper through LayerTreeHostProxy.
-    virtual const char* vertexShader() const
-    {
-        return "attribute highp vec4 vertex; \n"
-               "void main() { gl_Position = vertex; }";
-    }
-
-    virtual const char* fragmentShader() const
-    {
-        return "void main() { gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0); }";
-    }
-};
-
-struct PageProxyMaterial : public QSGMaterial {
-    PageProxyMaterial(PageProxyNode* node) : m_node(node) { }
-
-    QSGMaterialType* type() const
+struct PageProxyNode : public QSGRenderNode {
+    PageProxyNode(QQuickWebPagePrivate* page)
+        : m_pagePrivate(page)
     {
-        static QSGMaterialType type;
-        return &type;
     }
 
-    QSGMaterialShader* createShader() const
+    virtual StateFlags changedStates()
     {
-        return new PageProxyMaterialShader;
+        return StateFlags(DepthState) | StencilState | ScissorState | ColorState | BlendState
+               | CullState | ViewportState;
     }
 
-    PageProxyNode* m_node;
-};
-
-struct PageProxyNode : public QSGGeometryNode {
-    PageProxyNode(QQuickWebPagePrivate* page) :
-        m_pagePrivate(page)
-      , m_material(this)
-      , m_geometry(QSGGeometry::defaultAttributes_Point2D(), 4)
+    virtual void render(const RenderState &)
     {
-        setGeometry(&m_geometry);
-        setMaterial(&m_material);
+        if (m_pagePrivate)
+            m_pagePrivate->paintToCurrentGLContext();
     }
 
     ~PageProxyNode()
@@ -169,22 +135,8 @@ struct PageProxyNode : public QSGGeometryNode {
     }
 
     QQuickWebPagePrivate* m_pagePrivate;
-    PageProxyMaterial m_material;
-    QSGGeometry m_geometry;
 };
 
-void PageProxyMaterialShader::updateState(const RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial)
-{
-    if (!newMaterial)
-        return;
-
-    PageProxyNode* node = static_cast<PageProxyMaterial*>(newMaterial)->m_node;
-    // FIXME: Normally we wouldn't paint inside QSGMaterialShader::updateState,
-    // but this is a temporary hack until custom paint nodes are available.
-    if (node->m_pagePrivate)
-        node->m_pagePrivate->paintToCurrentGLContext();
-}
-
 QSGNode* QQuickWebPage::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*)
 {
     if (!(flags() & ItemHasContents)) {
@@ -242,13 +194,15 @@ QTransform QQuickWebPage::transformFromItem() const
 
 QTransform QQuickWebPage::transformToItem() const
 {
-    return QTransform(d->contentsScale, 0, 0, 0, d->contentsScale, 0, x(), y(), 1);
+    QPointF pos = d->viewportItem->pageItemPos();
+    return QTransform(d->contentsScale, 0, 0, 0, d->contentsScale, 0, pos.x(), pos.y(), 1);
 }
 
 void QQuickWebPagePrivate::updateSize()
 {
     QSizeF scaledSize = contentsSize * contentsScale;
     q->setSize(scaledSize);
+    viewportItem->updateContentsSize(scaledSize);
 }
 
 void QQuickWebPagePrivate::resetPaintNode()
-- 
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