mirror of
https://github.com/darlinghq/darling-WebCore.git
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111 lines
4.5 KiB
C++
111 lines
4.5 KiB
C++
/*
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* Copyright (C) 2006 Apple Inc. All rights reserved.
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* Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <wtf/Forward.h>
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#include <wtf/HashMap.h>
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#include <wtf/HashSet.h>
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#include <wtf/text/AtomStringHash.h>
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namespace WebCore {
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class Document;
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class Element;
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class RenderSVGResourceContainer;
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class SVGElement;
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class SVGFontFaceElement;
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class SVGResourcesCache;
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class SVGSMILElement;
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class SVGSVGElement;
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class SVGDocumentExtensions {
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WTF_MAKE_NONCOPYABLE(SVGDocumentExtensions); WTF_MAKE_FAST_ALLOCATED;
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public:
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typedef HashSet<Element*> PendingElements;
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explicit SVGDocumentExtensions(Document&);
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~SVGDocumentExtensions();
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void addTimeContainer(SVGSVGElement&);
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void removeTimeContainer(SVGSVGElement&);
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void addResource(const AtomString& id, RenderSVGResourceContainer&);
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void removeResource(const AtomString& id);
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RenderSVGResourceContainer* resourceById(const AtomString& id) const;
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void startAnimations();
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void pauseAnimations();
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void unpauseAnimations();
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void dispatchLoadEventToOutermostSVGElements();
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bool areAnimationsPaused() const { return m_areAnimationsPaused; }
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void reportWarning(const String&);
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void reportError(const String&);
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SVGResourcesCache& resourcesCache() { return *m_resourcesCache; }
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HashSet<SVGElement*>* setOfElementsReferencingTarget(SVGElement& referencedElement) const;
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void addElementReferencingTarget(SVGElement& referencingElement, SVGElement& referencedElement);
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void removeAllTargetReferencesForElement(SVGElement&);
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void rebuildAllElementReferencesForTarget(SVGElement&);
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void removeAllElementReferencesForTarget(SVGElement&);
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void clearTargetDependencies(SVGElement&);
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void rebuildElements();
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const HashSet<SVGFontFaceElement*>& svgFontFaceElements() const { return m_svgFontFaceElements; }
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void registerSVGFontFaceElement(SVGFontFaceElement&);
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void unregisterSVGFontFaceElement(SVGFontFaceElement&);
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private:
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Document& m_document;
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HashSet<SVGSVGElement*> m_timeContainers; // For SVG 1.2 support this will need to be made more general.
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HashSet<SVGFontFaceElement*> m_svgFontFaceElements;
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HashMap<AtomString, RenderSVGResourceContainer*> m_resources;
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HashMap<AtomString, std::unique_ptr<PendingElements>> m_pendingResources; // Resources that are pending.
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HashMap<AtomString, std::unique_ptr<PendingElements>> m_pendingResourcesForRemoval; // Resources that are pending and scheduled for removal.
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HashMap<SVGElement*, std::unique_ptr<HashSet<SVGElement*>>> m_elementDependencies;
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std::unique_ptr<SVGResourcesCache> m_resourcesCache;
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Vector<SVGElement*> m_rebuildElements;
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bool m_areAnimationsPaused;
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public:
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// This HashMap contains a list of pending resources. Pending resources, are such
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// which are referenced by any object in the SVG document, but do NOT exist yet.
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// For instance, dynamically build gradients / patterns / clippers...
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void addPendingResource(const AtomString& id, Element&);
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bool isIdOfPendingResource(const AtomString& id) const;
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bool isPendingResource(Element&, const AtomString& id) const;
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void clearHasPendingResourcesIfPossible(Element&);
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void removeElementFromPendingResources(Element&);
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std::unique_ptr<PendingElements> removePendingResource(const AtomString& id);
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// The following two functions are used for scheduling a pending resource to be removed.
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void markPendingResourcesForRemoval(const AtomString&);
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RefPtr<Element> removeElementFromPendingResourcesForRemovalMap(const AtomString&);
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private:
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bool isElementWithPendingResources(Element&) const;
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std::unique_ptr<PendingElements> removePendingResourceForRemoval(const AtomString&);
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};
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} // namespace WebCore
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