src/third_party/WebKit/Source/core/svg/SVGViewElement.cpp

   1 /*
   2  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
   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 #include "core/svg/SVGViewElement.h"
  24
  25 #include "SVGNames.h"
  26 #include "core/svg/SVGFitToViewBox.h"
  27 #include "core/svg/SVGStringList.h"
  28 #include "core/svg/SVGZoomAndPan.h"
  29
  30 namespace WebCore {
  31
  32 // Animated property definitions
  33 DEFINE_ANIMATED_BOOLEAN(SVGViewElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
  34 DEFINE_ANIMATED_RECT(SVGViewElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
  35 DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGViewElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio)
  36
  37 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGViewElement)
  38     REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
  39     REGISTER_LOCAL_ANIMATED_PROPERTY(viewBox)
  40     REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio)
  41     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGElement)
  42 END_REGISTER_ANIMATED_PROPERTIES
  43
  44 inline SVGViewElement::SVGViewElement(const QualifiedName& tagName, Document& document)
  45     : SVGElement(tagName, document)
  46     , m_zoomAndPan(SVGZoomAndPanMagnify)
  47     , m_viewTarget(SVGNames::viewTargetAttr)
  48 {
  49     ASSERT(hasTagName(SVGNames::viewTag));
  50     ScriptWrappable::init(this);
  51     registerAnimatedPropertiesForSVGViewElement();
  52 }
  53
  54 PassRefPtr<SVGViewElement> SVGViewElement::create(const QualifiedName& tagName, Document& document)
  55 {
  56     return adoptRef(new SVGViewElement(tagName, document));
  57 }
  58
  59 bool SVGViewElement::isSupportedAttribute(const QualifiedName& attrName)
  60 {
  61     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
  62     if (supportedAttributes.isEmpty()) {
  63         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
  64         SVGFitToViewBox::addSupportedAttributes(supportedAttributes);
  65         SVGZoomAndPan::addSupportedAttributes(supportedAttributes);
  66         supportedAttributes.add(SVGNames::viewTargetAttr);
  67     }
  68     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
  69 }
  70
  71 void SVGViewElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
  72 {
  73     if (!isSupportedAttribute(name)) {
  74         SVGElement::parseAttribute(name, value);
  75         return;
  76     }
  77
  78     if (name == SVGNames::viewTargetAttr) {
  79         viewTarget().reset(value);
  80         return;
  81     }
  82
  83     if (SVGExternalResourcesRequired::parseAttribute(name, value))
  84         return;
  85     if (SVGFitToViewBox::parseAttribute(this, name, value))
  86         return;
  87     if (SVGZoomAndPan::parseAttribute(this, name, value))
  88         return;
  89
  90     ASSERT_NOT_REACHED();
  91 }
  92
  93 }