diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGGElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGGElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,98 @@
+/*
+    Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005, 2006 Rob Buis <buis@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "SVGGElement.h"
+
+#include "RenderSVGHiddenContainer.h"
+#include "RenderSVGResource.h"
+#include "RenderSVGTransformableContainer.h"
+
+namespace WebCore {
+
+SVGGElement::SVGGElement(const QualifiedName& tagName, Document* doc)
+    : SVGStyledTransformableElement(tagName, doc)
+    , SVGTests()
+    , SVGLangSpace()
+    , SVGExternalResourcesRequired()
+{
+}
+
+SVGGElement::~SVGGElement()
+{
+}
+
+void SVGGElement::parseMappedAttribute(Attribute* attr)
+{
+    if (SVGTests::parseMappedAttribute(attr))
+        return;
+    if (SVGLangSpace::parseMappedAttribute(attr))
+        return;
+    if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
+        return;
+
+    SVGStyledTransformableElement::parseMappedAttribute(attr);
+}
+
+void SVGGElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGStyledTransformableElement::svgAttributeChanged(attrName);
+
+    RenderObject* renderer = this->renderer();
+    if (!renderer)
+        return;
+
+    if (SVGStyledTransformableElement::isKnownAttribute(attrName)) {
+        renderer->setNeedsTransformUpdate();
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+        return;
+    }
+
+    if (SVGTests::isKnownAttribute(attrName)
+        || SVGLangSpace::isKnownAttribute(attrName)
+        || SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+}
+
+void SVGGElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGStyledTransformableElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName() || SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+}
+
+RenderObject* SVGGElement::createRenderer(RenderArena* arena, RenderStyle* style)
+{
+    // SVG 1.1 testsuite explicitely uses constructs like <g display="none"><linearGradient>
+    // We still have to create renderers for the <g> & <linearGradient> element, though the
+    // subtree may be hidden - we only want the resource renderers to exist so they can be
+    // referenced from somewhere else.
+    if (style->display() == NONE)
+        return new (arena) RenderSVGHiddenContainer(this);
+
+    return new (arena) RenderSVGTransformableContainer(this);
+}
+
+}
+
+#endif // ENABLE(SVG)