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 "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 43PassRefPtr<SVGFontFaceUriElement> SVGFontFaceUriElement::create(Document& document) 44{ 45 return adoptRef(new SVGFontFaceUriElement(document)); 46} 47 48SVGFontFaceUriElement::~SVGFontFaceUriElement() 49{ 50 if (m_resource) 51 m_resource->removeClient(this); 52} 53 54PassRefPtr<CSSFontFaceSrcValue> SVGFontFaceUriElement::srcValue() const 55{ 56 RefPtr<CSSFontFaceSrcValue> src = CSSFontFaceSrcValue::create(getAttribute(XLinkNames::hrefAttr)); 57 AtomicString value(fastGetAttribute(formatAttr)); 58 src->setFormat(value.isEmpty() ? "svg" : value); // Default format 59 return src.release(); 60} 61 62void SVGFontFaceUriElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 63{ 64 if (name == XLinkNames::hrefAttr) 65 loadFont(); 66 else 67 SVGElement::parseAttribute(name, value); 68} 69 70void SVGFontFaceUriElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) 71{ 72 SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); 73 74 if (!parentNode() || !parentNode()->hasTagName(font_face_srcTag)) 75 return; 76 77 ContainerNode* grandparent = parentNode()->parentNode(); 78 if (grandparent && grandparent->hasTagName(font_faceTag)) 79 toSVGFontFaceElement(grandparent)->rebuildFontFace(); 80} 81 82Node::InsertionNotificationRequest SVGFontFaceUriElement::insertedInto(ContainerNode* rootParent) 83{ 84 loadFont(); 85 return SVGElement::insertedInto(rootParent); 86} 87 88void SVGFontFaceUriElement::loadFont() 89{ 90 if (m_resource) 91 m_resource->removeClient(this); 92 93 const AtomicString& href = getAttribute(XLinkNames::hrefAttr); 94 if (!href.isNull()) { 95 ResourceFetcher* fetcher = document().fetcher(); 96 FetchRequest request(ResourceRequest(document().completeURL(href)), localName()); 97 m_resource = fetcher->fetchFont(request); 98 if (m_resource) { 99 m_resource->addClient(this); 100 m_resource->beginLoadIfNeeded(fetcher); 101 } 102 } else { 103 m_resource = 0; 104 } 105} 106 107} 108 109#endif // ENABLE(SVG_FONTS) 110