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 Timing_h
32#define Timing_h
33
34#include "core/platform/animation/TimingFunction.h"
35#include "wtf/MathExtras.h"
36#include "wtf/RefPtr.h"
37
38namespace WebCore {
39
40struct Timing {
41    enum FillMode {
42        FillModeNone,
43        FillModeForwards,
44        FillModeBackwards,
45        FillModeBoth
46    };
47
48    enum PlaybackDirection {
49        PlaybackDirectionNormal,
50        PlaybackDirectionReverse,
51        PlaybackDirectionAlternate,
52        PlaybackDirectionAlternateReverse
53    };
54
55    Timing()
56        : startDelay(0)
57        , fillMode(FillModeForwards)
58        , iterationStart(0)
59        , iterationCount(1)
60        , hasIterationDuration(false)
61        , iterationDuration(0)
62        , playbackRate(1)
63        , direction(PlaybackDirectionNormal)
64        , timingFunction(0)
65    {
66    }
67
68    void assertValid() const
69    {
70        ASSERT(std::isfinite(startDelay));
71        ASSERT(std::isfinite(iterationStart));
72        ASSERT(iterationStart >= 0);
73        ASSERT(iterationCount >= 0);
74        ASSERT(iterationDuration >= 0);
75        ASSERT(std::isfinite(playbackRate));
76    }
77
78    double startDelay;
79    FillMode fillMode;
80    double iterationStart;
81    double iterationCount;
82    bool hasIterationDuration;
83    double iterationDuration;
84    // FIXME: Add activeDuration.
85    double playbackRate;
86    PlaybackDirection direction;
87    RefPtr<TimingFunction> timingFunction;
88
89};
90
91} // namespace WebCore
92
93#endif
94