/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "sky/engine/core/animation/InertAnimation.h"
#include "sky/engine/core/animation/Interpolation.h"

namespace blink {

PassRefPtr<InertAnimation> InertAnimation::create(PassRefPtr<AnimationEffect> effect, const Timing& timing, bool paused)
{
    return adoptRef(new InertAnimation(effect, timing, paused));
}

InertAnimation::InertAnimation(PassRefPtr<AnimationEffect> effect, const Timing& timing, bool paused)
    : AnimationNode(timing)
    , m_effect(effect)
    , m_paused(paused)
{
}

PassOwnPtr<Vector<RefPtr<Interpolation> > > InertAnimation::sample(double inheritedTime)
{
    updateInheritedTime(inheritedTime, TimingUpdateOnDemand);
    if (!isInEffect())
        return nullptr;

    double iteration = currentIteration();
    ASSERT(iteration >= 0);
    // FIXME: Handle iteration values which overflow int.
    return m_effect->sample(static_cast<int>(iteration), timeFraction(), iterationDuration());
}

double InertAnimation::calculateTimeToEffectChange(bool, double, double) const
{
    return std::numeric_limits<double>::infinity();
}

} // namespace blink