1 files changed, 110 insertions, 0 deletions
diff --git a/Source/WebCore/svg/SVGFontFaceUriElement.cpp b/Source/WebCore/svg/SVGFontFaceUriElement.cpp
new file mode 100644
index 0000000..58a22c7
--- /dev/null
+++ b/Source/WebCore/svg/SVGFontFaceUriElement.cpp
@@ -0,0 +1,110 @@
+/*
+ * 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 "SVGFontFaceUriElement.h"
+
+#include "Attribute.h"
+#include "CSSFontFaceSrcValue.h"
+#include "CachedFont.h"
+#include "CachedResourceLoader.h"
+#include "Document.h"
+#include "SVGFontFaceElement.h"
+#include "SVGNames.h"
+#include "XLinkNames.h"
+
+namespace WebCore {
+    
+using namespace SVGNames;
+    
+inline SVGFontFaceUriElement::SVGFontFaceUriElement(const QualifiedName& tagName, Document* document)
+    : SVGElement(tagName, document)
+{
+}
+
+PassRefPtr<SVGFontFaceUriElement> SVGFontFaceUriElement::create(const QualifiedName& tagName, Document* document)
+{
+    return adoptRef(new SVGFontFaceUriElement(tagName, document));
+}
+
+SVGFontFaceUriElement::~SVGFontFaceUriElement()
+{
+    if (m_cachedFont)
+        m_cachedFont->removeClient(this);
+}
+
+PassRefPtr<CSSFontFaceSrcValue> SVGFontFaceUriElement::srcValue() const
+{
+    RefPtr<CSSFontFaceSrcValue> src = CSSFontFaceSrcValue::create(getAttribute(XLinkNames::hrefAttr));
+    AtomicString value(getAttribute(formatAttr));
+    src->setFormat(value.isEmpty() ? "svg" : value); // Default format
+    return src.release();
+}
+
+void SVGFontFaceUriElement::parseMappedAttribute(Attribute* attr)
+{
+    const QualifiedName& attrName = attr->name();
+    if (attrName == XLinkNames::hrefAttr)
+        loadFont();
+    else
+        SVGElement::parseMappedAttribute(attr);
+}
+
+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))
+        static_cast<SVGFontFaceElement*>(grandparent)->rebuildFontFace();
+}
+
+void SVGFontFaceUriElement::insertedIntoDocument()
+{
+    loadFont();
+    SVGElement::insertedIntoDocument();
+}
+
+void SVGFontFaceUriElement::loadFont()
+{
+    if (m_cachedFont)
+        m_cachedFont->removeClient(this);
+
+    String href = getAttribute(XLinkNames::hrefAttr);
+    if (!href.isNull()) {        
+        CachedResourceLoader* cachedResourceLoader = document()->cachedResourceLoader();
+        m_cachedFont = cachedResourceLoader->requestFont(href);
+        if (m_cachedFont) {
+            m_cachedFont->setSVGFont(true);
+            m_cachedFont->addClient(this);
+            m_cachedFont->beginLoadIfNeeded(cachedResourceLoader);
+        }
+    } else
+        m_cachedFont = 0;
+}
+
+}
+
+#endif // ENABLE(SVG_FONTS)