diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGFEImageElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGFEImageElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,152 @@
+/*
+    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
+                  2004, 2005 Rob Buis <buis@kde.org>
+                  2010 Dirk Schulze <krit@webkit.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) && ENABLE(FILTERS)
+#include "SVGFEImageElement.h"
+
+#include "Attr.h"
+#include "CachedImage.h"
+#include "DocLoader.h"
+#include "Document.h"
+#include "RenderObject.h"
+#include "RenderSVGResource.h"
+#include "SVGLength.h"
+#include "SVGNames.h"
+#include "SVGPreserveAspectRatio.h"
+#include "SVGRenderSupport.h"
+
+namespace WebCore {
+
+SVGFEImageElement::SVGFEImageElement(const QualifiedName& tagName, Document* doc)
+    : SVGFilterPrimitiveStandardAttributes(tagName, doc)
+    , SVGURIReference()
+    , SVGLangSpace()
+    , SVGExternalResourcesRequired()
+{
+}
+
+SVGFEImageElement::~SVGFEImageElement()
+{
+    if (m_cachedImage)
+        m_cachedImage->removeClient(this);
+}
+
+void SVGFEImageElement::requestImageResource()
+{
+    if (m_cachedImage) {
+        m_cachedImage->removeClient(this);
+        m_cachedImage = 0;
+    }
+
+    Element* hrefElement = document()->getElementById(SVGURIReference::getTarget(href()));
+    if (hrefElement && hrefElement->isSVGElement() && hrefElement->renderer())
+        return;
+
+    m_cachedImage = ownerDocument()->docLoader()->requestImage(href());
+
+    if (m_cachedImage)
+        m_cachedImage->addClient(this);
+}
+
+void SVGFEImageElement::parseMappedAttribute(Attribute* attr)
+{
+    const String& value = attr->value();
+    if (attr->name() == SVGNames::preserveAspectRatioAttr)
+        SVGPreserveAspectRatio::parsePreserveAspectRatio(this, value);
+    else {
+        if (SVGURIReference::parseMappedAttribute(attr)) {
+            requestImageResource();
+            return;
+        }
+        if (SVGLangSpace::parseMappedAttribute(attr))
+            return;
+        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
+            return;
+
+        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
+    }
+}
+
+void SVGFEImageElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizePreserveAspectRatio();
+        synchronizeHref();
+        synchronizeExternalResourcesRequired();
+        return;
+    }
+
+    if (attrName == SVGNames::preserveAspectRatioAttr)
+        synchronizePreserveAspectRatio();
+    else if (SVGURIReference::isKnownAttribute(attrName))
+        synchronizeHref();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+}
+
+void SVGFEImageElement::notifyFinished(CachedResource*)
+{
+    if (!inDocument())
+        return;
+
+    Element* parent = parentElement();
+    ASSERT(parent);
+
+    if (!parent->hasTagName(SVGNames::filterTag) || !parent->renderer())
+        return;
+
+    RenderSVGResource::markForLayoutAndParentResourceInvalidation(parent->renderer());
+}
+
+PassRefPtr<FilterEffect> SVGFEImageElement::build(SVGFilterBuilder*)
+{
+    if (!m_cachedImage && !m_targetImage) {
+        Element* hrefElement = document()->getElementById(SVGURIReference::getTarget(href()));
+        if (!hrefElement || !hrefElement->isSVGElement())
+            return 0;
+
+        RenderObject* renderer = hrefElement->renderer();
+        if (!renderer)
+            return 0;
+
+        IntRect targetRect = enclosingIntRect(renderer->objectBoundingBox());
+        m_targetImage = ImageBuffer::create(targetRect.size(), LinearRGB);
+
+        SVGRenderSupport::renderSubtreeToImage(m_targetImage.get(), renderer);
+    }
+
+    return FEImage::create(m_targetImage ? m_targetImage->image() : m_cachedImage->image(), preserveAspectRatio());
+}
+
+void SVGFEImageElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
+{
+    SVGFilterPrimitiveStandardAttributes::addSubresourceAttributeURLs(urls);
+
+    addSubresourceURL(urls, document()->completeURL(href()));
+}
+
+}
+
+#endif // ENABLE(SVG)