SVGDocumentExtensions.h [plain text]
#ifndef SVGDocumentExtensions_h
#define SVGDocumentExtensions_h
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class Document;
class RenderSVGResourceContainer;
class SVGElement;
#if ENABLE(SVG_FONTS)
class SVGFontFaceElement;
#endif
class SVGResourcesCache;
class SVGSMILElement;
class SVGSVGElement;
class Element;
class SVGDocumentExtensions {
WTF_MAKE_NONCOPYABLE(SVGDocumentExtensions); WTF_MAKE_FAST_ALLOCATED;
public:
typedef HashSet<Element*> PendingElements;
explicit SVGDocumentExtensions(Document*);
~SVGDocumentExtensions();
void addTimeContainer(SVGSVGElement*);
void removeTimeContainer(SVGSVGElement*);
void addResource(const AtomicString& id, RenderSVGResourceContainer*);
void removeResource(const AtomicString& id);
RenderSVGResourceContainer* resourceById(const AtomicString& id) const;
void startAnimations();
void pauseAnimations();
void unpauseAnimations();
void dispatchSVGLoadEventToOutermostSVGElements();
void reportWarning(const String&);
void reportError(const String&);
SVGResourcesCache& resourcesCache() { return *m_resourcesCache; }
HashSet<SVGElement*>* setOfElementsReferencingTarget(SVGElement* referencedElement) const;
void addElementReferencingTarget(SVGElement* referencingElement, SVGElement* referencedElement);
void removeAllTargetReferencesForElement(SVGElement*);
void rebuildAllElementReferencesForTarget(SVGElement&);
void removeAllElementReferencesForTarget(SVGElement*);
void clearTargetDependencies(SVGElement&);
void rebuildElements();
#if ENABLE(SVG_FONTS)
const HashSet<SVGFontFaceElement*>& svgFontFaceElements() const { return m_svgFontFaceElements; }
void registerSVGFontFaceElement(SVGFontFaceElement*);
void unregisterSVGFontFaceElement(SVGFontFaceElement*);
#endif
private:
Document* m_document; HashSet<SVGSVGElement*> m_timeContainers; #if ENABLE(SVG_FONTS)
HashSet<SVGFontFaceElement*> m_svgFontFaceElements;
#endif
HashMap<AtomicString, RenderSVGResourceContainer*> m_resources;
HashMap<AtomicString, std::unique_ptr<PendingElements>> m_pendingResources; HashMap<AtomicString, std::unique_ptr<PendingElements>> m_pendingResourcesForRemoval; HashMap<SVGElement*, std::unique_ptr<HashSet<SVGElement*>>> m_elementDependencies;
std::unique_ptr<SVGResourcesCache> m_resourcesCache;
Vector<SVGElement*> m_rebuildElements;
public:
void addPendingResource(const AtomicString& id, Element*);
bool isIdOfPendingResource(const AtomicString& id) const;
bool isPendingResource(Element*, const AtomicString& id) const;
void clearHasPendingResourcesIfPossible(Element*);
void removeElementFromPendingResources(Element*);
std::unique_ptr<PendingElements> removePendingResource(const AtomicString& id);
void markPendingResourcesForRemoval(const AtomicString&);
Element* removeElementFromPendingResourcesForRemovalMap(const AtomicString&);
private:
bool isElementWithPendingResources(Element*) const;
std::unique_ptr<PendingElements> removePendingResourceForRemoval(const AtomicString&);
};
}
#endif