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 AnimatableLengthBox_h
32#define AnimatableLengthBox_h
33
34#include "core/animation/AnimatableValue.h"
35
36namespace WebCore {
37
38class AnimatableLengthBox : public AnimatableValue {
39public:
40    virtual ~AnimatableLengthBox() { }
41    static PassRefPtr<AnimatableLengthBox> create(PassRefPtr<AnimatableValue> left, PassRefPtr<AnimatableValue> right, PassRefPtr<AnimatableValue> top, PassRefPtr<AnimatableValue> bottom)
42    {
43        return adoptRef(new AnimatableLengthBox(left, right, top, bottom));
44    }
45    const AnimatableValue* left() const { return m_left.get(); }
46    const AnimatableValue* right() const { return m_right.get(); }
47    const AnimatableValue* top() const { return m_top.get(); }
48    const AnimatableValue* bottom() const { return m_bottom.get(); }
49
50protected:
51    virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
52    virtual PassRefPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
53
54private:
55    AnimatableLengthBox(PassRefPtr<AnimatableValue> left, PassRefPtr<AnimatableValue> right, PassRefPtr<AnimatableValue> top, PassRefPtr<AnimatableValue> bottom)
56        : m_left(left)
57        , m_right(right)
58        , m_top(top)
59        , m_bottom(bottom)
60    {
61    }
62    virtual AnimatableType type() const OVERRIDE { return TypeLengthBox; }
63    virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
64
65    RefPtr<AnimatableValue> m_left;
66    RefPtr<AnimatableValue> m_right;
67    RefPtr<AnimatableValue> m_top;
68    RefPtr<AnimatableValue> m_bottom;
69};
70
71DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthBox, isLengthBox());
72
73} // namespace WebCore
74
75#endif // AnimatableLengthBox_h
76