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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/animation/TimingInput.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/animation/AnimationInputHelpers.h"
#include "core/animation/KeyframeEffectOptions.h"
namespace blink {
void TimingInput::setStartDelay(Timing& timing, double startDelay) {
if (std::isfinite(startDelay))
timing.startDelay = startDelay / 1000;
else
timing.startDelay = Timing::defaults().startDelay;
}
void TimingInput::setEndDelay(Timing& timing, double endDelay) {
if (std::isfinite(endDelay))
timing.endDelay = endDelay / 1000;
else
timing.endDelay = Timing::defaults().endDelay;
}
void TimingInput::setFillMode(Timing& timing, const String& fillMode) {
if (fillMode == "none") {
timing.fillMode = Timing::FillMode::NONE;
} else if (fillMode == "backwards") {
timing.fillMode = Timing::FillMode::BACKWARDS;
} else if (fillMode == "both") {
timing.fillMode = Timing::FillMode::BOTH;
} else if (fillMode == "forwards") {
timing.fillMode = Timing::FillMode::FORWARDS;
} else {
timing.fillMode = Timing::defaults().fillMode;
}
}
bool TimingInput::setIterationStart(Timing& timing,
double iterationStart,
ExceptionState& exceptionState) {
DCHECK(std::isfinite(iterationStart));
if (std::isnan(iterationStart) || iterationStart < 0) {
exceptionState.throwTypeError("iterationStart must be non-negative.");
return false;
}
timing.iterationStart = iterationStart;
return true;
}
bool TimingInput::setIterationCount(Timing& timing,
double iterationCount,
ExceptionState& exceptionState) {
if (std::isnan(iterationCount) || iterationCount < 0) {
exceptionState.throwTypeError("iterationCount must be non-negative.");
return false;
}
timing.iterationCount = iterationCount;
return true;
}
bool TimingInput::setIterationDuration(
Timing& timing,
const UnrestrictedDoubleOrString& iterationDuration,
ExceptionState& exceptionState) {
static const char* errorMessage = "duration must be non-negative or auto.";
if (iterationDuration.isUnrestrictedDouble()) {
double durationNumber = iterationDuration.getAsUnrestrictedDouble();
if (std::isnan(durationNumber) || durationNumber < 0) {
exceptionState.throwTypeError(errorMessage);
return false;
}
timing.iterationDuration = durationNumber / 1000;
return true;
}
if (iterationDuration.getAsString() != "auto") {
exceptionState.throwTypeError(errorMessage);
return false;
}
timing.iterationDuration = Timing::defaults().iterationDuration;
return true;
}
void TimingInput::setPlaybackRate(Timing& timing, double playbackRate) {
if (std::isfinite(playbackRate))
timing.playbackRate = playbackRate;
else
timing.playbackRate = Timing::defaults().playbackRate;
}
void TimingInput::setPlaybackDirection(Timing& timing,
const String& direction) {
if (direction == "reverse") {
timing.direction = Timing::PlaybackDirection::REVERSE;
} else if (direction == "alternate") {
timing.direction = Timing::PlaybackDirection::ALTERNATE_NORMAL;
} else if (direction == "alternate-reverse") {
timing.direction = Timing::PlaybackDirection::ALTERNATE_REVERSE;
} else {
timing.direction = Timing::defaults().direction;
}
}
bool TimingInput::setTimingFunction(Timing& timing,
const String& timingFunctionString,
Document* document,
ExceptionState& exceptionState) {
if (RefPtr<TimingFunction> timingFunction =
AnimationInputHelpers::parseTimingFunction(
timingFunctionString, document, exceptionState)) {
timing.timingFunction = timingFunction;
return true;
}
return false;
}
bool TimingInput::convert(const KeyframeEffectOptions& timingInput,
Timing& timingOutput,
Document* document,
ExceptionState& exceptionState) {
setStartDelay(timingOutput, timingInput.delay());
setEndDelay(timingOutput, timingInput.endDelay());
setFillMode(timingOutput, timingInput.fill());
if (!setIterationStart(timingOutput, timingInput.iterationStart(),
exceptionState))
return false;
if (!setIterationCount(timingOutput, timingInput.iterations(),
exceptionState))
return false;
if (!setIterationDuration(timingOutput, timingInput.duration(),
exceptionState))
return false;
setPlaybackRate(timingOutput, 1.0);
setPlaybackDirection(timingOutput, timingInput.direction());
if (!setTimingFunction(timingOutput, timingInput.easing(), document,
exceptionState))
return false;
timingOutput.assertValid();
return true;
}
bool TimingInput::convert(double duration,
Timing& timingOutput,
ExceptionState& exceptionState) {
DCHECK(timingOutput == Timing::defaults());
return setIterationDuration(
timingOutput,
UnrestrictedDoubleOrString::fromUnrestrictedDouble(duration),
exceptionState);
}
} // namespace blink
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