void AnimationEffect::updateInheritedTime(double inheritedTime, TimingUpdateReason reason) const
{
bool needsUpdate = m_needsUpdate || (m_lastUpdateTime != inheritedTime && !(isNull(m_lastUpdateTime) && isNull(inheritedTime))) || (animation() && animation()->effectSuppressed());
m_needsUpdate = false;
m_lastUpdateTime = inheritedTime;
const double localTime = inheritedTime;
double timeToNextIteration = std::numeric_limits<double>::infinity();
if (needsUpdate) {
const double activeDuration = this->activeDurationInternal();
const Phase currentPhase = calculatePhase(activeDuration, localTime, m_timing);
// FIXME: parentPhase depends on groups being implemented.
const AnimationEffect::Phase parentPhase = AnimationEffect::PhaseActive;
const double activeTime = calculateActiveTime(activeDuration, resolvedFillMode(m_timing.fillMode, isKeyframeEffect()), localTime, parentPhase, currentPhase, m_timing);
double currentIteration;
double progress;
if (const double iterationDuration = this->iterationDuration()) {
const double startOffset = multiplyZeroAlwaysGivesZero(m_timing.iterationStart, iterationDuration);
ASSERT(startOffset >= 0);
const double scaledActiveTime = calculateScaledActiveTime(activeDuration, activeTime, startOffset, m_timing);
const double iterationTime = calculateIterationTime(iterationDuration, repeatedDuration(), scaledActiveTime, startOffset, m_timing);
currentIteration = calculateCurrentIteration(iterationDuration, iterationTime, scaledActiveTime, m_timing);
const double transformedTime = calculateTransformedTime(currentIteration, iterationDuration, iterationTime, m_timing);
// The infinite iterationDuration case here is a workaround because
// the specified behaviour does not handle infinite durations well.
// There is an open issue against the spec to fix this:
// https://github.com/w3c/web-animations/issues/142
if (!std::isfinite(iterationDuration))
progress = fmod(m_timing.iterationStart, 1.0);
else
progress = transformedTime / iterationDuration;
if (!isNull(iterationTime)) {
timeToNextIteration = (iterationDuration - iterationTime) / std::abs(m_timing.playbackRate);
if (activeDuration - activeTime < timeToNextIteration)
timeToNextIteration = std::numeric_limits<double>::infinity();
}
} else {
const double localIterationDuration = 1;
const double localRepeatedDuration = localIterationDuration * m_timing.iterationCount;
ASSERT(localRepeatedDuration >= 0);
const double localActiveDuration = m_timing.playbackRate ? localRepeatedDuration / std::abs(m_timing.playbackRate) : std::numeric_limits<double>::infinity();
ASSERT(localActiveDuration >= 0);
const double localLocalTime = localTime < m_timing.startDelay ? localTime : localActiveDuration + m_timing.startDelay;
const AnimationEffect::Phase localCurrentPhase = calculatePhase(localActiveDuration, localLocalTime, m_timing);
const double localActiveTime = calculateActiveTime(localActiveDuration, resolvedFillMode(m_timing.fillMode, isKeyframeEffect()), localLocalTime, parentPhase, localCurrentPhase, m_timing);
const double startOffset = m_timing.iterationStart * localIterationDuration;
ASSERT(startOffset >= 0);
const double scaledActiveTime = calculateScaledActiveTime(localActiveDuration, localActiveTime, startOffset, m_timing);
const double iterationTime = calculateIterationTime(localIterationDuration, localRepeatedDuration, scaledActiveTime, startOffset, m_timing);
currentIteration = calculateCurrentIteration(localIterationDuration, iterationTime, scaledActiveTime, m_timing);
progress = calculateTransformedTime(currentIteration, localIterationDuration, iterationTime, m_timing);
}
m_calculated.currentIteration = currentIteration;
m_calculated.progress = progress;
m_calculated.phase = currentPhase;
m_calculated.isInEffect = !isNull(activeTime);
m_calculated.isInPlay = getPhase() == PhaseActive;
m_calculated.isCurrent = getPhase() == PhaseBefore || isInPlay();
m_calculated.localTime = m_lastUpdateTime;
}
// Test for events even if timing didn't need an update as the animation may have gained a start time.
// FIXME: Refactor so that we can ASSERT(m_animation) here, this is currently required to be nullable for testing.
if (reason == TimingUpdateForAnimationFrame && (!m_animation || m_animation->hasStartTime() || m_animation->paused())) {
if (m_eventDelegate)
m_eventDelegate->onEventCondition(*this);
}
if (needsUpdate) {
// FIXME: This probably shouldn't be recursive.
updateChildrenAndEffects();
m_calculated.timeToForwardsEffectChange = calculateTimeToEffectChange(true, localTime, timeToNextIteration);
m_calculated.timeToReverseEffectChange = calculateTimeToEffectChange(false, localTime, timeToNextIteration);
}
}
double AnimationEffect::repeatedDuration() const
{
const double result = multiplyZeroAlwaysGivesZero(iterationDuration(), m_timing.iterationCount);
ASSERT(result >= 0);
return result;
}
void AnimationNode::updateInheritedTime(double inheritedTime, TimingUpdateReason reason) const
{
bool needsUpdate = m_needsUpdate || (m_lastUpdateTime != inheritedTime && !(isNull(m_lastUpdateTime) && isNull(inheritedTime)));
m_needsUpdate = false;
m_lastUpdateTime = inheritedTime;
const double localTime = inheritedTime - m_startTime;
double timeToNextIteration = std::numeric_limits<double>::infinity();
if (needsUpdate) {
const double activeDuration = this->activeDurationInternal();
const Phase currentPhase = calculatePhase(activeDuration, localTime, m_timing);
// FIXME: parentPhase depends on groups being implemented.
const AnimationNode::Phase parentPhase = AnimationNode::PhaseActive;
const double activeTime = calculateActiveTime(activeDuration, resolvedFillMode(m_timing.fillMode, isAnimation()), localTime, parentPhase, currentPhase, m_timing);
double currentIteration;
double timeFraction;
if (const double iterationDuration = this->iterationDuration()) {
const double startOffset = multiplyZeroAlwaysGivesZero(m_timing.iterationStart, iterationDuration);
ASSERT(startOffset >= 0);
const double scaledActiveTime = calculateScaledActiveTime(activeDuration, activeTime, startOffset, m_timing);
const double iterationTime = calculateIterationTime(iterationDuration, repeatedDuration(), scaledActiveTime, startOffset, m_timing);
currentIteration = calculateCurrentIteration(iterationDuration, iterationTime, scaledActiveTime, m_timing);
timeFraction = calculateTransformedTime(currentIteration, iterationDuration, iterationTime, m_timing) / iterationDuration;
if (!isNull(iterationTime)) {
timeToNextIteration = (iterationDuration - iterationTime) / std::abs(m_timing.playbackRate);
if (activeDuration - activeTime < timeToNextIteration)
timeToNextIteration = std::numeric_limits<double>::infinity();
}
} else {
const double localIterationDuration = 1;
const double localRepeatedDuration = localIterationDuration * m_timing.iterationCount;
ASSERT(localRepeatedDuration >= 0);
const double localActiveDuration = m_timing.playbackRate ? localRepeatedDuration / std::abs(m_timing.playbackRate) : std::numeric_limits<double>::infinity();
ASSERT(localActiveDuration >= 0);
const double localLocalTime = localTime < m_timing.startDelay ? localTime : localActiveDuration + m_timing.startDelay;
const AnimationNode::Phase localCurrentPhase = calculatePhase(localActiveDuration, localLocalTime, m_timing);
const double localActiveTime = calculateActiveTime(localActiveDuration, resolvedFillMode(m_timing.fillMode, isAnimation()), localLocalTime, parentPhase, localCurrentPhase, m_timing);
const double startOffset = m_timing.iterationStart * localIterationDuration;
ASSERT(startOffset >= 0);
const double scaledActiveTime = calculateScaledActiveTime(localActiveDuration, localActiveTime, startOffset, m_timing);
const double iterationTime = calculateIterationTime(localIterationDuration, localRepeatedDuration, scaledActiveTime, startOffset, m_timing);
currentIteration = calculateCurrentIteration(localIterationDuration, iterationTime, scaledActiveTime, m_timing);
timeFraction = calculateTransformedTime(currentIteration, localIterationDuration, iterationTime, m_timing);
}
m_calculated.currentIteration = currentIteration;
m_calculated.timeFraction = timeFraction;
m_calculated.phase = currentPhase;
m_calculated.isInEffect = !isNull(activeTime);
m_calculated.isInPlay = phase() == PhaseActive && (!m_parent || m_parent->isInPlay());
m_calculated.isCurrent = phase() == PhaseBefore || isInPlay() || (m_parent && m_parent->isCurrent());
m_calculated.localTime = m_lastUpdateTime - m_startTime;
}
// Test for events even if timing didn't need an update as the player may have gained a start time.
// FIXME: Refactor so that we can ASSERT(m_player) here, this is currently required to be nullable for testing.
if (reason == TimingUpdateForAnimationFrame && (!m_player || m_player->hasStartTime() || m_player->paused())) {
if (m_eventDelegate)
m_eventDelegate->onEventCondition(this);
}
if (needsUpdate) {
// FIXME: This probably shouldn't be recursive.
updateChildrenAndEffects();
m_calculated.timeToForwardsEffectChange = calculateTimeToEffectChange(true, localTime, timeToNextIteration);
m_calculated.timeToReverseEffectChange = calculateTimeToEffectChange(false, localTime, timeToNextIteration);
}
}