void SMILTimeContainer::schedule(SVGSMILElement* animation, SVGElement* target, const QualifiedName& attributeName)
{
ASSERT(animation->timeContainer() == this);
ASSERT(target);
ASSERT(animation->hasValidAttributeName());
#ifndef NDEBUG
ASSERT(!m_preventScheduledAnimationsChanges);
#endif
ElementAttributePair key(target, attributeName);
AnimationsVector* scheduled = m_scheduledAnimations.get(key);
if (!scheduled) {
scheduled = new AnimationsVector();
m_scheduledAnimations.set(key, scheduled);
}
ASSERT(!scheduled->contains(animation));
scheduled->append(animation);
SMILTime nextFireTime = animation->nextProgressTime();
if (nextFireTime.isFinite())
notifyIntervalsChanged();
}
void SMILTimeContainer::updateAnimations(SMILTime elapsed, bool seekToTime)
{
SMILTime earliestFireTime = SMILTime::unresolved();
#ifndef NDEBUG
// This boolean will catch any attempts to schedule/unschedule scheduledAnimations during this critical section.
// Similarly, any elements removed will unschedule themselves, so this will catch modification of animationsToApply.
m_preventScheduledAnimationsChanges = true;
#endif
AnimationsVector animationsToApply;
GroupedAnimationsMap::iterator end = m_scheduledAnimations.end();
for (GroupedAnimationsMap::iterator it = m_scheduledAnimations.begin(); it != end; ++it) {
AnimationsVector* scheduled = it->second;
// Sort according to priority. Elements with later begin time have higher priority.
// In case of a tie, document order decides.
// FIXME: This should also consider timing relationships between the elements. Dependents
// have higher priority.
sortByPriority(*scheduled, elapsed);
SVGSMILElement* resultElement = 0;
unsigned size = scheduled->size();
for (unsigned n = 0; n < size; n++) {
SVGSMILElement* animation = scheduled->at(n);
ASSERT(animation->timeContainer() == this);
ASSERT(animation->targetElement());
ASSERT(animation->hasValidAttributeName());
// Results are accumulated to the first animation that animates and contributes to a particular element/attribute pair.
if (!resultElement) {
if (!animation->hasValidAttributeType())
continue;
resultElement = animation;
}
// This will calculate the contribution from the animation and add it to the resultsElement.
if (!animation->progress(elapsed, resultElement, seekToTime) && resultElement == animation)
resultElement = 0;
SMILTime nextFireTime = animation->nextProgressTime();
if (nextFireTime.isFinite())
earliestFireTime = min(nextFireTime, earliestFireTime);
}
if (resultElement)
animationsToApply.append(resultElement);
}
unsigned animationsToApplySize = animationsToApply.size();
if (!animationsToApplySize) {
#ifndef NDEBUG
m_preventScheduledAnimationsChanges = false;
#endif
startTimer(earliestFireTime, animationFrameDelay);
return;
}
// Apply results to target elements.
for (unsigned i = 0; i < animationsToApplySize; ++i)
animationsToApply[i]->applyResultsToTarget();
#ifndef NDEBUG
m_preventScheduledAnimationsChanges = false;
#endif
startTimer(earliestFireTime, animationFrameDelay);
Document::updateStyleForAllDocuments();
}
SMILTime SMILTimeContainer::updateAnimations(SMILTime elapsed, bool seekToTime)
{
SMILTime earliestFireTime = SMILTime::unresolved();
#if ENABLE(ASSERT)
// This boolean will catch any attempts to schedule/unschedule scheduledAnimations during this critical section.
// Similarly, any elements removed will unschedule themselves, so this will catch modification of animationsToApply.
m_preventScheduledAnimationsChanges = true;
#endif
if (m_documentOrderIndexesDirty)
updateDocumentOrderIndexes();
WillBeHeapHashSet<ElementAttributePair> invalidKeys;
using AnimationsVector = WillBeHeapVector<RefPtrWillBeMember<SVGSMILElement>>;
AnimationsVector animationsToApply;
for (const auto& entry : m_scheduledAnimations) {
if (!entry.key.first || entry.value->isEmpty()) {
invalidKeys.add(entry.key);
continue;
}
AnimationsLinkedHashSet* scheduled = entry.value.get();
// Sort according to priority. Elements with later begin time have higher priority.
// In case of a tie, document order decides.
// FIXME: This should also consider timing relationships between the elements. Dependents
// have higher priority.
AnimationsVector scheduledAnimations;
copyToVector(*scheduled, scheduledAnimations);
std::sort(scheduledAnimations.begin(), scheduledAnimations.end(), PriorityCompare(elapsed));
SVGSMILElement* resultElement = nullptr;
for (const auto& itAnimation : scheduledAnimations) {
SVGSMILElement* animation = itAnimation.get();
ASSERT(animation->timeContainer() == this);
ASSERT(animation->targetElement());
ASSERT(animation->hasValidAttributeName());
// Results are accumulated to the first animation that animates and contributes to a particular element/attribute pair.
// FIXME: we should ensure that resultElement is of an appropriate type.
if (!resultElement) {
if (!animation->hasValidAttributeType())
continue;
resultElement = animation;
}
// This will calculate the contribution from the animation and add it to the resultsElement.
if (!animation->progress(elapsed, resultElement, seekToTime) && resultElement == animation)
resultElement = nullptr;
SMILTime nextFireTime = animation->nextProgressTime();
if (nextFireTime.isFinite())
earliestFireTime = std::min(nextFireTime, earliestFireTime);
}
if (resultElement)
animationsToApply.append(resultElement);
}
m_scheduledAnimations.removeAll(invalidKeys);
std::sort(animationsToApply.begin(), animationsToApply.end(), PriorityCompare(elapsed));
unsigned animationsToApplySize = animationsToApply.size();
if (!animationsToApplySize) {
#if ENABLE(ASSERT)
m_preventScheduledAnimationsChanges = false;
#endif
return earliestFireTime;
}
// Apply results to target elements.
for (unsigned i = 0; i < animationsToApplySize; ++i)
animationsToApply[i]->applyResultsToTarget();
#if ENABLE(ASSERT)
m_preventScheduledAnimationsChanges = false;
#endif
for (unsigned i = 0; i < animationsToApplySize; ++i) {
if (animationsToApply[i]->inDocument() && animationsToApply[i]->isSVGDiscardElement()) {
RefPtrWillBeRawPtr<SVGSMILElement> animDiscard = animationsToApply[i];
RefPtrWillBeRawPtr<SVGElement> targetElement = animDiscard->targetElement();
if (targetElement && targetElement->inDocument()) {
targetElement->remove(IGNORE_EXCEPTION);
ASSERT(!targetElement->inDocument());
}
if (animDiscard->inDocument()) {
animDiscard->remove(IGNORE_EXCEPTION);
ASSERT(!animDiscard->inDocument());
}
}
}
return earliestFireTime;
}