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* Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <>
* Copyright (C) 2004, 2005, 2006 Rob Buis <>
* 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
* 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.
#ifndef SVGElement_h
#define SVGElement_h
#include "core/dom/Element.h"
#include "core/platform/Timer.h"
#include "core/svg/SVGLangSpace.h"
#include "core/svg/SVGLocatable.h"
#include "core/svg/SVGParsingError.h"
#include "core/svg/properties/SVGPropertyInfo.h"
#include <wtf/HashMap.h>
namespace WebCore {
class AffineTransform;
class CSSCursorImageValue;
class Document;
class SVGAttributeToPropertyMap;
class SVGCursorElement;
class SVGDocumentExtensions;
class SVGElementInstance;
class SVGElementRareData;
class SVGSVGElement;
class SVGElement : public Element, public SVGLangSpace {
static PassRefPtr<SVGElement> create(const QualifiedName&, Document*);
virtual ~SVGElement();
bool isOutermostSVGSVGElement() const;
String xmlbase() const;
void setXmlbase(const String&);
SVGSVGElement* ownerSVGElement() const;
SVGElement* viewportElement() const;
SVGDocumentExtensions* accessDocumentSVGExtensions();
virtual bool isSVGStyledElement() const { return false; }
virtual bool isSVGGraphicsElement() const { return false; }
virtual bool isSVGSVGElement() const { return false; }
virtual bool isFilterEffect() const { return false; }
virtual bool isGradientStop() const { return false; }
virtual bool isTextContent() const { return false; }
// For SVGTests
virtual bool isValid() const { return true; }
virtual void svgAttributeChanged(const QualifiedName&) { }
virtual void animatedPropertyTypeForAttribute(const QualifiedName&, Vector<AnimatedPropertyType>&);
void sendSVGLoadEventIfPossible(bool sendParentLoadEvents = false);
void sendSVGLoadEventIfPossibleAsynchronously();
void svgLoadEventTimerFired(Timer<SVGElement>*);
virtual Timer<SVGElement>* svgLoadEventTimer();
virtual AffineTransform* supplementalTransform() { return 0; }
void invalidateSVGAttributes() { ensureUniqueElementData()->m_animatedSVGAttributesAreDirty = true; }
const HashSet<SVGElementInstance*>& instancesForElement() const;
bool getBoundingBox(FloatRect&, SVGLocatable::StyleUpdateStrategy = SVGLocatable::AllowStyleUpdate);
void setCursorElement(SVGCursorElement*);
void cursorElementRemoved();
void setCursorImageValue(CSSCursorImageValue*);
void cursorImageValueRemoved();
SVGElement* correspondingElement();
void setCorrespondingElement(SVGElement*);
void synchronizeAnimatedSVGAttribute(const QualifiedName&) const;
virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
static void synchronizeRequiredFeatures(SVGElement* contextElement);
static void synchronizeRequiredExtensions(SVGElement* contextElement);
static void synchronizeSystemLanguage(SVGElement* contextElement);
virtual void synchronizeRequiredFeatures() { }
virtual void synchronizeRequiredExtensions() { }
virtual void synchronizeSystemLanguage() { }
virtual SVGAttributeToPropertyMap& localAttributeToPropertyMap() const;
#ifndef NDEBUG
bool isAnimatableAttribute(const QualifiedName&) const;
MutableStylePropertySet* animatedSMILStyleProperties() const;
MutableStylePropertySet* ensureAnimatedSMILStyleProperties();
void setUseOverrideComputedStyle(bool);
virtual bool haveLoadedRequiredResources();
virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture) OVERRIDE;
virtual bool removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture) OVERRIDE;
virtual bool shouldMoveToFlowThread(RenderStyle*) const OVERRIDE;
SVGElement(const QualifiedName&, Document*, ConstructionType = CreateSVGElement);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
virtual void finishParsingChildren();
virtual void attributeChanged(const QualifiedName&, const AtomicString&, AttributeModificationReason = ModifiedDirectly) OVERRIDE;
virtual bool childShouldCreateRenderer(const NodeRenderingContext&) const OVERRIDE;
virtual void removedFrom(ContainerNode*) OVERRIDE;
SVGElementRareData* svgRareData() const;
SVGElementRareData* ensureSVGRareData();
void reportAttributeParsingError(SVGParsingError, const QualifiedName&, const AtomicString&);
bool hasFocusEventListeners() const;
friend class SVGElementInstance;
// FIXME: Author shadows should be allowed
virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; }
RenderStyle* computedStyle(PseudoId = NOPSEUDO);
virtual RenderStyle* virtualComputedStyle(PseudoId pseudoElementSpecifier = NOPSEUDO) { return computedStyle(pseudoElementSpecifier); }
virtual void willRecalcStyle(StyleChange) OVERRIDE;
virtual bool isKeyboardFocusable(KeyboardEvent*) const OVERRIDE;
virtual bool rendererIsNeeded(const NodeRenderingContext&) { return false; }
virtual bool isSupported(StringImpl* feature, StringImpl* version) const;
void mapInstanceToElement(SVGElementInstance*);
void removeInstanceMapping(SVGElementInstance*);
struct SVGAttributeHashTranslator {
static unsigned hash(const QualifiedName& key)
if (key.hasPrefix()) {
QualifiedNameComponents components = { nullAtom.impl(), key.localName().impl(), key.namespaceURI().impl() };
return hashComponents(components);
return DefaultHash<QualifiedName>::Hash::hash(key);
static bool equal(const QualifiedName& a, const QualifiedName& b) { return a.matches(b); }
inline SVGElement* toSVGElement(Node* node)
return static_cast<SVGElement*>(node);
inline const SVGElement* toSVGElement(const Node* node)
return static_cast<const SVGElement*>(node);