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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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
* distribution.
* * Neither the name of Google Inc. nor the names of its
* 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
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef Timing_h
#define Timing_h
#include "core/style/DataEquivalency.h"
#include "platform/animation/CompositorAnimation.h"
#include "platform/animation/TimingFunction.h"
#include "wtf/Allocator.h"
#include "wtf/MathExtras.h"
#include "wtf/RefPtr.h"
namespace blink {
struct Timing {
USING_FAST_MALLOC(Timing);
public:
using FillMode = CompositorAnimation::FillMode;
using PlaybackDirection = CompositorAnimation::Direction;
static String fillModeString(FillMode);
static String playbackDirectionString(PlaybackDirection);
static const Timing& defaults() {
DEFINE_STATIC_LOCAL(Timing, timing, ());
return timing;
}
Timing()
: startDelay(0),
endDelay(0),
fillMode(FillMode::AUTO),
iterationStart(0),
iterationCount(1),
iterationDuration(std::numeric_limits<double>::quiet_NaN()),
playbackRate(1),
direction(PlaybackDirection::NORMAL),
timingFunction(LinearTimingFunction::shared()) {}
void assertValid() const {
DCHECK(std::isfinite(startDelay));
DCHECK(std::isfinite(endDelay));
DCHECK(std::isfinite(iterationStart));
DCHECK_GE(iterationStart, 0);
DCHECK_GE(iterationCount, 0);
DCHECK(std::isnan(iterationDuration) || iterationDuration >= 0);
DCHECK(std::isfinite(playbackRate));
DCHECK(timingFunction);
}
bool operator==(const Timing& other) const {
return startDelay == other.startDelay && endDelay == other.endDelay &&
fillMode == other.fillMode &&
iterationStart == other.iterationStart &&
iterationCount == other.iterationCount &&
((std::isnan(iterationDuration) &&
std::isnan(other.iterationDuration)) ||
iterationDuration == other.iterationDuration) &&
playbackRate == other.playbackRate && direction == other.direction &&
dataEquivalent(timingFunction.get(), other.timingFunction.get());
}
bool operator!=(const Timing& other) const { return !(*this == other); }
double startDelay;
double endDelay;
FillMode fillMode;
double iterationStart;
double iterationCount;
double iterationDuration;
// TODO(crbug.com/630915) Remove playbackRate
double playbackRate;
PlaybackDirection direction;
RefPtr<TimingFunction> timingFunction;
};
} // namespace blink
#endif
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