1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef AnimatableImage_h
32#define AnimatableImage_h
33
34#include "core/animation/animatable/AnimatableValue.h"
35#include "core/css/CSSCrossfadeValue.h"
36#include "core/rendering/style/StyleImage.h"
37
38namespace blink {
39
40class AnimatableImage FINAL : public AnimatableValue {
41public:
42    virtual ~AnimatableImage() { }
43    static PassRefPtrWillBeRawPtr<AnimatableImage> create(PassRefPtrWillBeRawPtr<CSSValue> value)
44    {
45        return adoptRefWillBeNoop(new AnimatableImage(value));
46    }
47    CSSValue* toCSSValue() const { return m_value.get(); }
48
49    virtual void trace(Visitor* visitor) OVERRIDE
50    {
51        visitor->trace(m_value);
52        AnimatableValue::trace(visitor);
53    }
54
55protected:
56    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
57    virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE;
58
59private:
60    AnimatableImage(PassRefPtrWillBeRawPtr<CSSValue> value)
61        : m_value(value)
62    {
63        ASSERT(m_value.get());
64    }
65    virtual AnimatableType type() const OVERRIDE { return TypeImage; }
66    virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
67
68    const RefPtrWillBeMember<CSSValue> m_value;
69};
70
71DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableImage, isImage());
72
73} // namespace blink
74
75#endif // AnimatableImage_h
76