1/* 2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> 3 * Copyright (C) 2009 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22 23#if ENABLE(SVG_FONTS) 24#include "core/svg/SVGFontFaceUriElement.h" 25 26#include "core/XLinkNames.h" 27#include "core/css/CSSFontFaceSrcValue.h" 28#include "core/dom/Document.h" 29#include "core/fetch/FetchRequest.h" 30#include "core/fetch/ResourceFetcher.h" 31#include "core/svg/SVGFontFaceElement.h" 32 33namespace WebCore { 34 35using namespace SVGNames; 36 37inline SVGFontFaceUriElement::SVGFontFaceUriElement(Document& document) 38 : SVGElement(font_face_uriTag, document) 39{ 40 ScriptWrappable::init(this); 41} 42 43DEFINE_NODE_FACTORY(SVGFontFaceUriElement) 44 45SVGFontFaceUriElement::~SVGFontFaceUriElement() 46{ 47 if (m_resource) 48 m_resource->removeClient(this); 49} 50 51PassRefPtrWillBeRawPtr<CSSFontFaceSrcValue> SVGFontFaceUriElement::srcValue() const 52{ 53 RefPtrWillBeRawPtr<CSSFontFaceSrcValue> src = CSSFontFaceSrcValue::create(getAttribute(XLinkNames::hrefAttr)); 54 AtomicString value(fastGetAttribute(formatAttr)); 55 src->setFormat(value.isEmpty() ? "svg" : value); // Default format 56 return src.release(); 57} 58 59void SVGFontFaceUriElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 60{ 61 if (name.matches(XLinkNames::hrefAttr)) 62 loadFont(); 63 else 64 SVGElement::parseAttribute(name, value); 65} 66 67void SVGFontFaceUriElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) 68{ 69 SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); 70 71 if (!isSVGFontFaceSrcElement(parentNode())) 72 return; 73 74 ContainerNode* grandparent = parentNode()->parentNode(); 75 if (isSVGFontFaceElement(grandparent)) 76 toSVGFontFaceElement(*grandparent).rebuildFontFace(); 77} 78 79Node::InsertionNotificationRequest SVGFontFaceUriElement::insertedInto(ContainerNode* rootParent) 80{ 81 loadFont(); 82 return SVGElement::insertedInto(rootParent); 83} 84 85void SVGFontFaceUriElement::loadFont() 86{ 87 if (m_resource) 88 m_resource->removeClient(this); 89 90 const AtomicString& href = getAttribute(XLinkNames::hrefAttr); 91 if (!href.isNull()) { 92 ResourceFetcher* fetcher = document().fetcher(); 93 FetchRequest request(ResourceRequest(document().completeURL(href)), localName()); 94 m_resource = fetcher->fetchFont(request); 95 if (m_resource) { 96 m_resource->addClient(this); 97 m_resource->beginLoadIfNeeded(fetcher); 98 } 99 } else { 100 m_resource = 0; 101 } 102} 103 104} 105 106#endif // ENABLE(SVG_FONTS) 107