#ifndef SVGUseElement_h
#define SVGUseElement_h
#include "CachedResourceHandle.h"
#include "CachedSVGDocumentClient.h"
#include "SVGAnimatedBoolean.h"
#include "SVGAnimatedLength.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGGraphicsElement.h"
#include "SVGNames.h"
#include "SVGURIReference.h"
namespace WebCore {
class CachedSVGDocument;
class SVGElementInstance;
class SVGUseElement final : public SVGGraphicsElement,
public SVGExternalResourcesRequired,
public SVGURIReference,
public CachedSVGDocumentClient {
public:
static PassRefPtr<SVGUseElement> create(const QualifiedName&, Document&, bool wasInsertedByParser);
virtual ~SVGUseElement();
SVGElementInstance* instanceRoot();
SVGElementInstance* animatedInstanceRoot() const;
SVGElementInstance* instanceForShadowTreeElement(Node*) const;
void invalidateShadowTree();
void invalidateDependentShadowTrees();
RenderElement* rendererClipChild() const;
protected:
virtual void didNotifySubtreeInsertions(ContainerNode*) override;
private:
SVGUseElement(const QualifiedName&, Document&, bool wasInsertedByParser);
virtual bool isValid() const override { return SVGTests::isValid(); }
virtual InsertionNotificationRequest insertedInto(ContainerNode&) override;
virtual void removedFrom(ContainerNode&) override;
virtual void buildPendingResource() override;
bool isSupportedAttribute(const QualifiedName&);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
virtual void svgAttributeChanged(const QualifiedName&) override;
virtual void willAttachRenderers() override;
virtual RenderPtr<RenderElement> createElementRenderer(PassRef<RenderStyle>) override;
virtual void toClipPath(Path&) override;
void clearResourceReferences();
void buildShadowAndInstanceTree(SVGElement* target);
void detachInstance();
virtual bool haveLoadedRequiredResources() override { return SVGExternalResourcesRequired::haveLoadedRequiredResources(); }
virtual void finishParsingChildren() override;
virtual bool selfHasRelativeLengths() const override;
void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle, bool foundUse);
bool hasCycleUseReferencing(SVGUseElement*, SVGElementInstance* targetInstance, SVGElement*& newTarget);
void buildShadowTree(SVGElement* target, SVGElementInstance* targetInstance);
void expandUseElementsInShadowTree(Node* element);
void expandSymbolElementsInShadowTree(Node* element);
void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
void transferEventListenersToShadowTree(SVGElementInstance* target);
BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGUseElement)
DECLARE_ANIMATED_LENGTH(X, x)
DECLARE_ANIMATED_LENGTH(Y, y)
DECLARE_ANIMATED_LENGTH(Width, width)
DECLARE_ANIMATED_LENGTH(Height, height)
DECLARE_ANIMATED_STRING(Href, href)
DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
END_DECLARE_ANIMATED_PROPERTIES
bool cachedDocumentIsStillLoading();
Document* externalDocument() const;
bool instanceTreeIsLoading(SVGElementInstance*);
virtual void notifyFinished(CachedResource*) override;
Document* referencedDocument() const;
void setCachedDocument(CachedResourceHandle<CachedSVGDocument>);
virtual void setHaveFiredLoadEvent(bool haveFiredLoadEvent) override { m_haveFiredLoadEvent = haveFiredLoadEvent; }
virtual bool isParserInserted() const override { return m_wasInsertedByParser; }
virtual bool haveFiredLoadEvent() const override { return m_haveFiredLoadEvent; }
virtual Timer<SVGElement>* svgLoadEventTimer() override { return &m_svgLoadEventTimer; }
bool m_wasInsertedByParser;
bool m_haveFiredLoadEvent;
bool m_needsShadowTreeRecreation;
RefPtr<SVGElementInstance> m_targetElementInstance;
CachedResourceHandle<CachedSVGDocument> m_cachedDocument;
Timer<SVGElement> m_svgLoadEventTimer;
};
NODE_TYPE_CASTS(SVGUseElement)
}
#endif