1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 * Copyright (C) 2013 Samsung Electronics. All rights reserved.
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 SVGAnimatedProperty_h
22#define SVGAnimatedProperty_h
23
24#include "SVGAnimatedPropertyDescription.h"
25#include "SVGPropertyInfo.h"
26#include <wtf/RefCounted.h>
27
28namespace WebCore {
29
30class SVGElement;
31
32class SVGAnimatedProperty : public RefCounted<SVGAnimatedProperty> {
33public:
34    SVGElement* contextElement() const { return m_contextElement.get(); }
35    const QualifiedName& attributeName() const { return m_attributeName; }
36    AnimatedPropertyType animatedPropertyType() const { return m_animatedPropertyType; }
37    bool isAnimating() const { return m_isAnimating; }
38    bool isReadOnly() const { return m_isReadOnly; }
39    void setIsReadOnly() { m_isReadOnly = true; }
40
41    void commitChange();
42
43    virtual bool isAnimatedListTearOff() const { return false; }
44
45    // Caching facilities.
46    typedef HashMap<SVGAnimatedPropertyDescription, SVGAnimatedProperty*, SVGAnimatedPropertyDescriptionHash, SVGAnimatedPropertyDescriptionHashTraits> Cache;
47
48    virtual ~SVGAnimatedProperty();
49
50    template<typename OwnerType, typename TearOffType, typename PropertyType>
51    static PassRefPtr<TearOffType> lookupOrCreateWrapper(OwnerType* element, const SVGPropertyInfo* info, PropertyType& property)
52    {
53        ASSERT(info);
54        SVGAnimatedPropertyDescription key(element, info->propertyIdentifier);
55        RefPtr<SVGAnimatedProperty> wrapper = animatedPropertyCache()->get(key);
56        if (!wrapper) {
57            wrapper = TearOffType::create(element, info->attributeName, info->animatedPropertyType, property);
58            if (info->animatedPropertyState == PropertyIsReadOnly)
59                wrapper->setIsReadOnly();
60            animatedPropertyCache()->set(key, wrapper.get());
61        }
62        return static_pointer_cast<TearOffType>(wrapper);
63    }
64
65    template<typename OwnerType, typename TearOffType>
66    static TearOffType* lookupWrapper(OwnerType* element, const SVGPropertyInfo* info)
67    {
68        ASSERT(info);
69        SVGAnimatedPropertyDescription key(element, info->propertyIdentifier);
70        return static_cast<TearOffType*>(animatedPropertyCache()->get(key));
71    }
72
73    template<typename OwnerType, typename TearOffType>
74    static TearOffType* lookupWrapper(const OwnerType* element, const SVGPropertyInfo* info)
75    {
76        return lookupWrapper<OwnerType, TearOffType>(const_cast<OwnerType*>(element), info);
77    }
78
79protected:
80    SVGAnimatedProperty(SVGElement*, const QualifiedName&, AnimatedPropertyType);
81
82private:
83    static Cache* animatedPropertyCache();
84
85    RefPtr<SVGElement> m_contextElement;
86    const QualifiedName& m_attributeName;
87    AnimatedPropertyType m_animatedPropertyType;
88
89protected:
90    bool m_isAnimating;
91    bool m_isReadOnly;
92};
93
94}
95
96#endif // SVGAnimatedProperty_h
97