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#include "config.h"
32#include "core/animation/InertAnimation.h"
33#include "core/animation/Interpolation.h"
34
35namespace blink {
36
37PassRefPtrWillBeRawPtr<InertAnimation> InertAnimation::create(PassRefPtrWillBeRawPtr<AnimationEffect> effect, const Timing& timing, bool paused)
38{
39    return adoptRefWillBeNoop(new InertAnimation(effect, timing, paused));
40}
41
42InertAnimation::InertAnimation(PassRefPtrWillBeRawPtr<AnimationEffect> effect, const Timing& timing, bool paused)
43    : AnimationNode(timing)
44    , m_effect(effect)
45    , m_paused(paused)
46{
47}
48
49PassOwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > InertAnimation::sample(double inheritedTime)
50{
51    updateInheritedTime(inheritedTime, TimingUpdateOnDemand);
52    if (!isInEffect())
53        return nullptr;
54
55    double iteration = currentIteration();
56    ASSERT(iteration >= 0);
57    // FIXME: Handle iteration values which overflow int.
58    return m_effect->sample(static_cast<int>(iteration), timeFraction(), iterationDuration());
59}
60
61double InertAnimation::calculateTimeToEffectChange(bool, double, double) const
62{
63    return std::numeric_limits<double>::infinity();
64}
65
66void InertAnimation::trace(Visitor* visitor)
67{
68    visitor->trace(m_effect);
69    AnimationNode::trace(visitor);
70}
71
72} // namespace blink
73