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 AnimatableLength_h
32#define AnimatableLength_h
33
34#include "core/animation/animatable/AnimatableValue.h"
35#include "platform/Length.h"
36
37namespace blink {
38
39class AnimatableLength FINAL : public AnimatableValue {
40public:
41    static PassRefPtrWillBeRawPtr<AnimatableLength> create(const Length& length, float zoom)
42    {
43        return adoptRefWillBeNoop(new AnimatableLength(length, zoom));
44    }
45    Length length(float zoom, ValueRange) const;
46
47protected:
48    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
49
50private:
51    static PassRefPtrWillBeRawPtr<AnimatableLength> create(double pixels, double percent, bool hasPixels, bool hasPercent)
52    {
53        return adoptRefWillBeNoop(new AnimatableLength(pixels, percent, hasPixels, hasPercent));
54    }
55    AnimatableLength(const Length&, float zoom);
56    AnimatableLength(double pixels, double percent, bool hasPixels, bool hasPercent)
57        : m_pixels(pixels)
58        , m_percent(percent)
59        , m_hasPixels(hasPixels)
60        , m_hasPercent(hasPercent)
61    {
62        ASSERT(m_hasPixels || m_hasPercent);
63    }
64    virtual AnimatableType type() const OVERRIDE { return TypeLength; }
65    virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
66
67    virtual void trace(Visitor* visitor) OVERRIDE { AnimatableValue::trace(visitor); }
68
69    double m_pixels;
70    double m_percent;
71    bool m_hasPixels;
72    bool m_hasPercent;
73};
74
75DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLength, isLength());
76
77} // namespace blink
78
79#endif // AnimatableLength_h
80