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      1 /*
      2  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2008 Apple Inc. All rights reserved.
      5  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #include "config.h"
     24 
     25 #if ENABLE(SVG_FONTS)
     26 #include "core/svg/SVGAltGlyphElement.h"
     27 
     28 #include "bindings/core/v8/ExceptionMessages.h"
     29 #include "bindings/core/v8/ExceptionState.h"
     30 #include "core/SVGNames.h"
     31 #include "core/XLinkNames.h"
     32 #include "core/dom/ExceptionCode.h"
     33 #include "core/rendering/svg/RenderSVGTSpan.h"
     34 #include "core/svg/SVGAltGlyphDefElement.h"
     35 
     36 namespace blink {
     37 
     38 inline SVGAltGlyphElement::SVGAltGlyphElement(Document& document)
     39     : SVGTextPositioningElement(SVGNames::altGlyphTag, document)
     40     , SVGURIReference(this)
     41 {
     42 }
     43 
     44 DEFINE_NODE_FACTORY(SVGAltGlyphElement)
     45 
     46 void SVGAltGlyphElement::setGlyphRef(const AtomicString&, ExceptionState& exceptionState)
     47 {
     48     exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::readOnly());
     49 }
     50 
     51 const AtomicString& SVGAltGlyphElement::glyphRef() const
     52 {
     53     return fastGetAttribute(SVGNames::glyphRefAttr);
     54 }
     55 
     56 void SVGAltGlyphElement::setFormat(const AtomicString&, ExceptionState& exceptionState)
     57 {
     58     exceptionState.throwDOMException(NoModificationAllowedError, ExceptionMessages::readOnly());
     59 }
     60 
     61 const AtomicString& SVGAltGlyphElement::format() const
     62 {
     63     return fastGetAttribute(SVGNames::formatAttr);
     64 }
     65 
     66 RenderObject* SVGAltGlyphElement::createRenderer(RenderStyle*)
     67 {
     68     return new RenderSVGTSpan(this);
     69 }
     70 
     71 bool SVGAltGlyphElement::hasValidGlyphElements(Vector<AtomicString>& glyphNames) const
     72 {
     73     AtomicString target;
     74     Element* element = targetElementFromIRIString(getAttribute(XLinkNames::hrefAttr), treeScope(), &target);
     75     if (!element)
     76         return false;
     77 
     78     if (isSVGGlyphElement(*element)) {
     79         glyphNames.append(target);
     80         return true;
     81     }
     82 
     83     if (isSVGAltGlyphDefElement(*element) && toSVGAltGlyphDefElement(*element).hasValidGlyphElements(glyphNames))
     84         return true;
     85 
     86     return false;
     87 }
     88 
     89 }
     90 
     91 #endif
     92