1/*
2 * Copyright (C) 2006 Apple Inc. All rights reserved.
3 * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
4 *
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.
9 *
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.
14 *
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.
19 */
20
21#ifndef SVGDocumentExtensions_h
22#define SVGDocumentExtensions_h
23
24#if ENABLE(SVG)
25#include "SVGResourcesCache.h"
26#include <wtf/Forward.h>
27#include <wtf/HashMap.h>
28#include <wtf/HashSet.h>
29#include <wtf/PassOwnPtr.h>
30#include <wtf/text/AtomicStringHash.h>
31#include <wtf/text/StringImpl.h>
32
33namespace WebCore {
34
35class Document;
36class RenderSVGResourceContainer;
37class SVGElement;
38class SVGStyledElement;
39class SVGSMILElement;
40class SVGSVGElement;
41
42class SVGDocumentExtensions {
43    WTF_MAKE_NONCOPYABLE(SVGDocumentExtensions); WTF_MAKE_FAST_ALLOCATED;
44public:
45    typedef HashSet<RefPtr<SVGStyledElement> > SVGPendingElements;
46    SVGDocumentExtensions(Document*);
47    ~SVGDocumentExtensions();
48
49    void addTimeContainer(SVGSVGElement*);
50    void removeTimeContainer(SVGSVGElement*);
51
52    void addResource(const AtomicString& id, RenderSVGResourceContainer*);
53    void removeResource(const AtomicString& id);
54    RenderSVGResourceContainer* resourceById(const AtomicString& id) const;
55
56    void startAnimations();
57    void pauseAnimations();
58    void unpauseAnimations();
59    bool sampleAnimationAtTime(const String& elementId, SVGSMILElement*, double time);
60
61    void addAnimationElementToTarget(SVGSMILElement*, SVGElement*);
62    void removeAnimationElementFromTarget(SVGSMILElement*, SVGElement*);
63    void removeAllAnimationElementsFromTarget(SVGElement*);
64
65    void reportWarning(const String&);
66    void reportError(const String&);
67
68    SVGResourcesCache* resourcesCache() const { return m_resourcesCache.get(); }
69
70private:
71    Document* m_document; // weak reference
72    HashSet<SVGSVGElement*> m_timeContainers; // For SVG 1.2 support this will need to be made more general.
73    HashMap<SVGElement*, HashSet<SVGSMILElement*>* > m_animatedElements;
74    HashMap<AtomicString, RenderSVGResourceContainer*> m_resources;
75    HashMap<AtomicString, SVGPendingElements*> m_pendingResources;
76    OwnPtr<SVGResourcesCache> m_resourcesCache;
77
78public:
79    // This HashMap contains a list of pending resources. Pending resources, are such
80    // which are referenced by any object in the SVG document, but do NOT exist yet.
81    // For instance, dynamically build gradients / patterns / clippers...
82    void addPendingResource(const AtomicString& id, PassRefPtr<SVGStyledElement>);
83    bool isPendingResource(const AtomicString& id) const;
84    PassOwnPtr<SVGPendingElements> removePendingResource(const AtomicString& id);
85};
86
87}
88
89#endif
90#endif
91