/*
* Copyright (C) 2013 Google Inc. All rights reserved.
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* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* 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
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*/
#ifndef Timing_h
#define Timing_h
#include "platform/animation/TimingFunction.h"
#include "wtf/MathExtras.h"
#include "wtf/RefPtr.h"
namespace WebCore {
struct Timing {
enum FillMode {
FillModeAuto,
FillModeNone,
FillModeForwards,
FillModeBackwards,
FillModeBoth
};
enum PlaybackDirection {
PlaybackDirectionNormal,
PlaybackDirectionReverse,
PlaybackDirectionAlternate,
PlaybackDirectionAlternateReverse
};
static const Timing& defaults()
{
DEFINE_STATIC_LOCAL(Timing, timing, ());
return timing;
}
Timing()
: startDelay(0)
, endDelay(0)
, fillMode(FillModeAuto)
, iterationStart(0)
, iterationCount(1)
, iterationDuration(std::numeric_limits<double>::quiet_NaN())
, playbackRate(1)
, direction(PlaybackDirectionNormal)
, timingFunction(LinearTimingFunction::preset())
{
}
void assertValid() const
{
ASSERT(std::isfinite(startDelay));
ASSERT(std::isfinite(endDelay));
ASSERT(std::isfinite(iterationStart));
ASSERT(iterationStart >= 0);
ASSERT(iterationCount >= 0);
ASSERT(std::isnan(iterationDuration) || iterationDuration >= 0);
ASSERT(std::isfinite(playbackRate));
ASSERT(timingFunction);
}
double startDelay;
double endDelay;
FillMode fillMode;
double iterationStart;
double iterationCount;
double iterationDuration;
double playbackRate;
PlaybackDirection direction;
RefPtr<TimingFunction> timingFunction;
};
} // namespace WebCore
#endif