2 * Copyright (C) 2006 Apple Inc. All rights reserved.
3 * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
21 #ifndef SVGDocumentExtensions_h
22 #define SVGDocumentExtensions_h
24 #include "platform/geometry/FloatPoint.h"
25 #include "platform/heap/Handle.h"
26 #include "wtf/Forward.h"
27 #include "wtf/HashMap.h"
28 #include "wtf/HashSet.h"
29 #include "wtf/text/AtomicStringHash.h"
34 class RenderSVGResourceContainer;
35 class SubtreeLayoutScope;
37 class SVGFontFaceElement;
39 class SVGResourcesCache;
43 class SVGDocumentExtensions : public NoBaseWillBeGarbageCollectedFinalized<SVGDocumentExtensions> {
44 WTF_MAKE_NONCOPYABLE(SVGDocumentExtensions); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
46 typedef WillBeHeapHashSet<RawPtrWillBeMember<Element> > SVGPendingElements;
47 explicit SVGDocumentExtensions(Document*);
48 ~SVGDocumentExtensions();
50 void addTimeContainer(SVGSVGElement*);
51 void removeTimeContainer(SVGSVGElement*);
53 void addResource(const AtomicString& id, RenderSVGResourceContainer*);
54 void removeResource(const AtomicString& id);
55 RenderSVGResourceContainer* resourceById(const AtomicString& id) const;
57 static void serviceOnAnimationFrame(Document&, double monotonicAnimationStartTime);
59 void startAnimations();
60 void pauseAnimations();
61 void dispatchSVGLoadEventToOutermostSVGElements();
63 void reportWarning(const String&);
64 void reportError(const String&);
66 SVGResourcesCache* resourcesCache() const { return m_resourcesCache.get(); }
68 void addSVGRootWithRelativeLengthDescendents(SVGSVGElement*);
69 void removeSVGRootWithRelativeLengthDescendents(SVGSVGElement*);
70 bool isSVGRootWithRelativeLengthDescendents(SVGSVGElement*) const;
71 void invalidateSVGRootsWithRelativeLengthDescendents(SubtreeLayoutScope*);
74 const WillBeHeapHashSet<RawPtrWillBeMember<SVGFontFaceElement> >& svgFontFaceElements() const { return m_svgFontFaceElements; }
75 void registerSVGFontFaceElement(SVGFontFaceElement*);
76 void unregisterSVGFontFaceElement(SVGFontFaceElement*);
78 void registerPendingSVGFontFaceElementsForRemoval(PassRefPtrWillBeRawPtr<SVGFontFaceElement>);
79 void removePendingSVGFontFaceElementsForRemoval();
82 bool zoomAndPanEnabled() const;
84 void startPan(const FloatPoint& start);
85 void updatePan(const FloatPoint& pos) const;
87 static SVGSVGElement* rootElement(const Document&);
88 SVGSVGElement* rootElement() const;
93 RawPtrWillBeMember<Document> m_document;
94 WillBeHeapHashSet<RawPtrWillBeMember<SVGSVGElement> > m_timeContainers; // For SVG 1.2 support this will need to be made more general.
96 WillBeHeapHashSet<RawPtrWillBeMember<SVGFontFaceElement> > m_svgFontFaceElements;
97 // SVGFontFaceElements that are pending and scheduled for removal.
98 WillBeHeapHashSet<RefPtrWillBeMember<SVGFontFaceElement> > m_pendingSVGFontFaceElementsForRemoval;
100 HashMap<AtomicString, RenderSVGResourceContainer*> m_resources;
101 WillBeHeapHashMap<AtomicString, OwnPtrWillBeMember<SVGPendingElements> > m_pendingResources; // Resources that are pending.
102 WillBeHeapHashMap<AtomicString, OwnPtrWillBeMember<SVGPendingElements> > m_pendingResourcesForRemoval; // Resources that are pending and scheduled for removal.
103 OwnPtr<SVGResourcesCache> m_resourcesCache;
104 WillBeHeapHashSet<RawPtrWillBeMember<SVGSVGElement> > m_relativeLengthSVGRoots; // Root SVG elements with relative length descendants.
105 FloatPoint m_translate;
107 bool m_inRelativeLengthSVGRootsInvalidation;
111 // This HashMap contains a list of pending resources. Pending resources, are such
112 // which are referenced by any object in the SVG document, but do NOT exist yet.
113 // For instance, dynamically build gradients / patterns / clippers...
114 void addPendingResource(const AtomicString& id, Element*);
115 bool hasPendingResource(const AtomicString& id) const;
116 bool isElementPendingResources(Element*) const;
117 bool isElementPendingResource(Element*, const AtomicString& id) const;
118 void clearHasPendingResourcesIfPossible(Element*);
119 void removeElementFromPendingResources(Element*);
120 PassOwnPtrWillBeRawPtr<SVGPendingElements> removePendingResource(const AtomicString& id);
122 void serviceAnimations(double monotonicAnimationStartTime);
124 // The following two functions are used for scheduling a pending resource to be removed.
125 void markPendingResourcesForRemoval(const AtomicString&);
126 Element* removeElementFromPendingResourcesForRemoval(const AtomicString&);
129 PassOwnPtrWillBeRawPtr<SVGPendingElements> removePendingResourceForRemoval(const AtomicString&);