| /* |
| * Copyright (C) 2006 Apple Inc. All rights reserved. |
| * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * |
| * 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 |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * 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 SVGDocumentExtensions_h |
| #define SVGDocumentExtensions_h |
| |
| #include "core/layout/svg/SVGResourcesCache.h" |
| #include "platform/geometry/FloatPoint.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Forward.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/HashSet.h" |
| #include "wtf/text/AtomicStringHash.h" |
| |
| namespace blink { |
| |
| class Document; |
| class LayoutSVGResourceContainer; |
| class SubtreeLayoutScope; |
| class SVGSVGElement; |
| class SVGElement; |
| class Element; |
| |
| class SVGDocumentExtensions |
| : public GarbageCollectedFinalized<SVGDocumentExtensions> { |
| WTF_MAKE_NONCOPYABLE(SVGDocumentExtensions); |
| |
| public: |
| typedef HeapHashSet<Member<Element>> SVGPendingElements; |
| explicit SVGDocumentExtensions(Document*); |
| ~SVGDocumentExtensions(); |
| |
| void addTimeContainer(SVGSVGElement*); |
| void removeTimeContainer(SVGSVGElement*); |
| |
| // Records the SVG element as having a Web Animation on an SVG attribute that |
| // needs applying. |
| void addWebAnimationsPendingSVGElement(SVGElement&); |
| |
| void addResource(const AtomicString& id, LayoutSVGResourceContainer*); |
| void removeResource(const AtomicString& id); |
| LayoutSVGResourceContainer* resourceById(const AtomicString& id) const; |
| |
| static void serviceOnAnimationFrame(Document&); |
| |
| void startAnimations(); |
| void pauseAnimations(); |
| void dispatchSVGLoadEventToOutermostSVGElements(); |
| |
| void reportError(const String&); |
| |
| SVGResourcesCache& resourcesCache() { return m_resourcesCache; } |
| |
| void addSVGRootWithRelativeLengthDescendents(SVGSVGElement*); |
| void removeSVGRootWithRelativeLengthDescendents(SVGSVGElement*); |
| bool isSVGRootWithRelativeLengthDescendents(SVGSVGElement*) const; |
| void invalidateSVGRootsWithRelativeLengthDescendents(SubtreeLayoutScope*); |
| |
| bool zoomAndPanEnabled() const; |
| |
| void startPan(const FloatPoint& start); |
| void updatePan(const FloatPoint& pos) const; |
| |
| static SVGSVGElement* rootElement(const Document&); |
| SVGSVGElement* rootElement() const; |
| |
| DECLARE_TRACE(); |
| |
| private: |
| Member<Document> m_document; |
| // For SVG 1.2 support this will need to be made more general. |
| HeapHashSet<Member<SVGSVGElement>> m_timeContainers; |
| using SVGElementSet = HeapHashSet<Member<SVGElement>>; |
| SVGElementSet m_webAnimationsPendingSVGElements; |
| HashMap<AtomicString, LayoutSVGResourceContainer*> m_resources; |
| // Resources that are pending. |
| HeapHashMap<AtomicString, Member<SVGPendingElements>> m_pendingResources; |
| // Resources that are pending and scheduled for removal. |
| HeapHashMap<AtomicString, Member<SVGPendingElements>> |
| m_pendingResourcesForRemoval; |
| SVGResourcesCache m_resourcesCache; |
| // Root SVG elements with relative length descendants. |
| HeapHashSet<Member<SVGSVGElement>> m_relativeLengthSVGRoots; |
| FloatPoint m_translate; |
| #if ENABLE(ASSERT) |
| bool m_inRelativeLengthSVGRootsInvalidation; |
| #endif |
| |
| public: |
| // This HashMap contains a list of pending resources. Pending resources, are |
| // such which are referenced by any object in the SVG document, but do NOT |
| // exist yet. |
| // For instance, dynamically build gradients / patterns / clippers... |
| void addPendingResource(const AtomicString& id, Element*); |
| bool hasPendingResource(const AtomicString& id) const; |
| bool isElementPendingResources(Element*) const; |
| bool isElementPendingResource(Element*, const AtomicString& id) const; |
| void clearHasPendingResourcesIfPossible(Element*); |
| void removeElementFromPendingResources(Element*); |
| SVGPendingElements* removePendingResource(const AtomicString& id); |
| |
| void serviceAnimations(); |
| |
| // The following two functions are used for scheduling a pending resource to |
| // be removed. |
| void markPendingResourcesForRemoval(const AtomicString&); |
| Element* removeElementFromPendingResourcesForRemoval(const AtomicString&); |
| |
| private: |
| SVGPendingElements* removePendingResourceForRemoval(const AtomicString&); |
| }; |
| |
| } // namespace blink |
| |
| #endif |