diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGTRefElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGTRefElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,99 @@
+/*
+    Copyright (C) 2004, 2005 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 "SVGTRefElement.h"
+
+#include "RenderSVGInline.h"
+#include "RenderSVGResource.h"
+#include "SVGDocument.h"
+#include "SVGNames.h"
+#include "Text.h"
+#include "XLinkNames.h"
+
+namespace WebCore {
+
+SVGTRefElement::SVGTRefElement(const QualifiedName& tagName, Document* doc)
+    : SVGTextPositioningElement(tagName, doc)
+    , SVGURIReference()
+{
+}
+
+SVGTRefElement::~SVGTRefElement()
+{
+}
+
+void SVGTRefElement::updateReferencedText()
+{
+    Element* target = document()->getElementById(SVGURIReference::getTarget(href()));
+    String textContent;
+    if (target && target->isSVGElement())
+        textContent = static_cast<SVGElement*>(target)->textContent();
+    ExceptionCode ignore = 0;
+    setTextContent(textContent, ignore);
+}
+
+void SVGTRefElement::parseMappedAttribute(Attribute* attr)
+{
+    if (SVGURIReference::parseMappedAttribute(attr)) {
+        updateReferencedText();
+        return;
+    }
+
+    SVGTextPositioningElement::parseMappedAttribute(attr);
+}
+
+void SVGTRefElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGTextPositioningElement::svgAttributeChanged(attrName);
+
+    if (!renderer())
+        return;
+
+    if (SVGURIReference::isKnownAttribute(attrName))
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer());
+}
+
+void SVGTRefElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGTextPositioningElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName() || SVGURIReference::isKnownAttribute(attrName))
+        synchronizeHref();
+}
+
+bool SVGTRefElement::childShouldCreateRenderer(Node* child) const
+{
+    if (child->isTextNode() || child->hasTagName(SVGNames::tspanTag) ||
+        child->hasTagName(SVGNames::trefTag))
+        return true;
+    return false;
+}
+
+RenderObject* SVGTRefElement::createRenderer(RenderArena* arena, RenderStyle*)
+{
+    return new (arena) RenderSVGInline(this);
+}
+
+}
+
+#endif // ENABLE(SVG)