double Animation::calculateTimeToEffectChange(bool forwards, double localTime, double timeToNextIteration) const
{
const double start = startTimeInternal() + specifiedTiming().startDelay;
const double end = start + activeDurationInternal();
switch (phase()) {
case PhaseBefore:
ASSERT(start >= localTime);
return forwards
? start - localTime
: std::numeric_limits<double>::infinity();
case PhaseActive:
if (forwards && hasActiveAnimationsOnCompositor()) {
ASSERT(specifiedTiming().playbackRate == 1);
// Need service to apply fill / fire events.
const double timeToEnd = end - localTime;
if (hasEvents()) {
return std::min(timeToEnd, timeToNextIteration);
} else {
return timeToEnd;
}
}
return 0;
case PhaseAfter:
ASSERT(localTime >= end);
// If this Animation is still in effect then it will need to update
// when its parent goes out of effect. We have no way of knowing when
// that will be, however, so the parent will need to supply it.
return forwards
? std::numeric_limits<double>::infinity()
: localTime - end;
default:
ASSERT_NOT_REACHED();
return std::numeric_limits<double>::infinity();
}
}
void DummyEventLoop::processEvents() {
while(hasEvents()) {
hasEvents_ = false;
handleNextEvents();
}
}
DummyEventLoop::~DummyEventLoop() {
if (hasEvents()) {
std::cerr << "DummyEventLoop: Unhandled events at destruction time" << std::endl;
}
}
