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/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* 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_FONTS)
#include "core/svg/SVGFontFaceUriElement.h"
#include "SVGNames.h"
#include "XLinkNames.h"
#include "core/css/CSSFontFaceSrcValue.h"
#include "core/dom/Document.h"
#include "core/loader/cache/FetchRequest.h"
#include "core/loader/cache/FontResource.h"
#include "core/loader/cache/ResourceFetcher.h"
#include "core/svg/SVGFontFaceElement.h"
namespace WebCore {
using namespace SVGNames;
inline SVGFontFaceUriElement::SVGFontFaceUriElement(const QualifiedName& tagName, Document* document)
: SVGElement(tagName, document)
{
ASSERT(hasTagName(font_face_uriTag));
ScriptWrappable::init(this);
}
PassRefPtr<SVGFontFaceUriElement> SVGFontFaceUriElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGFontFaceUriElement(tagName, document));
}
SVGFontFaceUriElement::~SVGFontFaceUriElement()
{
if (m_resource)
m_resource->removeClient(this);
}
PassRefPtr<CSSFontFaceSrcValue> SVGFontFaceUriElement::srcValue() const
{
RefPtr<CSSFontFaceSrcValue> src = CSSFontFaceSrcValue::create(getAttribute(XLinkNames::hrefAttr));
AtomicString value(fastGetAttribute(formatAttr));
src->setFormat(value.isEmpty() ? "svg" : value); // Default format
return src.release();
}
void SVGFontFaceUriElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == XLinkNames::hrefAttr)
loadFont();
else
SVGElement::parseAttribute(name, value);
}
void SVGFontFaceUriElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
if (!parentNode() || !parentNode()->hasTagName(font_face_srcTag))
return;
ContainerNode* grandparent = parentNode()->parentNode();
if (grandparent && grandparent->hasTagName(font_faceTag))
toSVGFontFaceElement(grandparent)->rebuildFontFace();
}
Node::InsertionNotificationRequest SVGFontFaceUriElement::insertedInto(ContainerNode* rootParent)
{
loadFont();
return SVGElement::insertedInto(rootParent);
}
void SVGFontFaceUriElement::loadFont()
{
if (m_resource)
m_resource->removeClient(this);
const AtomicString& href = getAttribute(XLinkNames::hrefAttr);
if (!href.isNull()) {
ResourceFetcher* fetcher = document()->fetcher();
FetchRequest request(ResourceRequest(document()->completeURL(href)), localName());
m_resource = fetcher->requestFont(request);
if (m_resource) {
m_resource->addClient(this);
m_resource->beginLoadIfNeeded(fetcher);
}
} else {
m_resource = 0;
}
}
}
#endif // ENABLE(SVG_FONTS)
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