void CSSAnimations::calculateTransitionActiveInterpolations(CSSAnimationUpdate& update, const Element* animatingElement, double timelineCurrentTime)
{
ElementAnimations* elementAnimations = animatingElement ? animatingElement->elementAnimations() : nullptr;
AnimationStack* animationStack = elementAnimations ? &elementAnimations->defaultStack() : nullptr;
ActiveInterpolationsMap activeInterpolationsForTransitions;
if (update.newTransitions().isEmpty() && update.cancelledTransitions().isEmpty()) {
activeInterpolationsForTransitions = AnimationStack::activeInterpolations(animationStack, 0, 0, KeyframeEffect::TransitionPriority, timelineCurrentTime);
} else {
HeapVector<Member<InertEffect>> newTransitions;
for (const auto& entry : update.newTransitions())
newTransitions.append(entry.value.effect.get());
HeapHashSet<Member<const Animation>> cancelledAnimations;
if (!update.cancelledTransitions().isEmpty()) {
ASSERT(elementAnimations);
const TransitionMap& transitionMap = elementAnimations->cssAnimations().m_transitions;
for (CSSPropertyID id : update.cancelledTransitions()) {
ASSERT(transitionMap.contains(id));
cancelledAnimations.add(transitionMap.get(id).animation.get());
}
}
activeInterpolationsForTransitions = AnimationStack::activeInterpolations(animationStack, &newTransitions, &cancelledAnimations, KeyframeEffect::TransitionPriority, timelineCurrentTime);
}
// Properties being animated by animations don't get values from transitions applied.
if (!update.activeInterpolationsForAnimations().isEmpty() && !activeInterpolationsForTransitions.isEmpty()) {
for (const auto& entry : update.activeInterpolationsForAnimations())
activeInterpolationsForTransitions.remove(entry.key);
}
update.adoptActiveInterpolationsForTransitions(activeInterpolationsForTransitions);
}
void CSSAnimations::calculateCompositorAnimationUpdate(CSSAnimationUpdate& update, const Element* animatingElement, Element& element, const ComputedStyle& style)
{
ElementAnimations* elementAnimations = animatingElement ? animatingElement->elementAnimations() : nullptr;
// We only update compositor animations in response to changes in the base style.
if (!elementAnimations || elementAnimations->isAnimationStyleChange())
return;
if (!animatingElement->layoutObject() || !animatingElement->layoutObject()->style())
return;
const ComputedStyle& oldStyle = *animatingElement->layoutObject()->style();
if (!oldStyle.shouldCompositeForCurrentAnimations())
return;
CSSAnimations& cssAnimations = elementAnimations->cssAnimations();
for (auto& runningAnimation : cssAnimations.m_animations.values()) {
Animation& animation = *runningAnimation->animation;
if (animation.effect() && animation.effect()->isKeyframeEffect()) {
EffectModel* model = toKeyframeEffect(animation.effect())->model();
if (model && model->isKeyframeEffectModel()) {
KeyframeEffectModelBase* keyframeEffect = toKeyframeEffectModelBase(model);
if (keyframeEffect->hasSyntheticKeyframes() && keyframeEffect->snapshotNeutralCompositorKeyframes(element, oldStyle, style))
update.updateCompositorKeyframes(&animation);
}
}
}
if (oldStyle.hasCurrentTransformAnimation() && oldStyle.effectiveZoom() != style.effectiveZoom()) {
for (auto& entry : elementAnimations->animations()) {
Animation& animation = *entry.key;
if (animation.effect() && animation.effect()->isKeyframeEffect()) {
EffectModel* model = toKeyframeEffect(animation.effect())->model();
if (model && model->isKeyframeEffectModel()) {
KeyframeEffectModelBase* keyframeEffect = toKeyframeEffectModelBase(model);
if (keyframeEffect->affects(PropertyHandle(CSSPropertyTransform)) && keyframeEffect->snapshotAllCompositorKeyframes(element, &style))
update.updateCompositorKeyframes(&animation);
}
}
}
}
}
void CSSAnimations::calculateTransitionUpdate(CSSAnimationUpdate& update, const Element* animatingElement, const ComputedStyle& style)
{
if (!animatingElement)
return;
if (animatingElement->document().printing() || animatingElement->document().wasPrinting())
return;
ElementAnimations* elementAnimations = animatingElement->elementAnimations();
const TransitionMap* activeTransitions = elementAnimations ? &elementAnimations->cssAnimations().m_transitions : nullptr;
const CSSTransitionData* transitionData = style.transitions();
#if ENABLE(ASSERT)
// In debug builds we verify that it would have been safe to avoid populating and testing listedProperties if the style recalc is due to animation.
const bool animationStyleRecalc = false;
#else
// In release builds we avoid the cost of checking for new and interrupted transitions if the style recalc is due to animation.
const bool animationStyleRecalc = elementAnimations && elementAnimations->isAnimationStyleChange();
#endif
BitArray<numCSSProperties> listedProperties;
bool anyTransitionHadTransitionAll = false;
const LayoutObject* layoutObject = animatingElement->layoutObject();
if (!animationStyleRecalc && style.display() != NONE && layoutObject && layoutObject->style() && transitionData) {
const ComputedStyle& oldStyle = *layoutObject->style();
for (size_t i = 0; i < transitionData->propertyList().size(); ++i) {
const CSSTransitionData::TransitionProperty& transitionProperty = transitionData->propertyList()[i];
if (transitionProperty.propertyType != CSSTransitionData::TransitionKnownProperty)
continue;
CSSPropertyID property = resolveCSSPropertyID(transitionProperty.unresolvedProperty);
bool animateAll = property == CSSPropertyAll;
if (animateAll)
anyTransitionHadTransitionAll = true;
const StylePropertyShorthand& propertyList = animateAll ? CSSAnimations::propertiesForTransitionAll() : shorthandForProperty(property);
// If not a shorthand we only execute one iteration of this loop, and refer to the property directly.
for (unsigned j = 0; !j || j < propertyList.length(); ++j) {
CSSPropertyID id = propertyList.length() ? propertyList.properties()[j] : property;
ASSERT(id >= firstCSSProperty);
if (!animateAll) {
if (CSSPropertyMetadata::isInterpolableProperty(id))
listedProperties.set(id - firstCSSProperty);
else
continue;
}
// FIXME: We should transition if an !important property changes even when an animation is running,
// but this is a bit hard to do with the current applyMatchedProperties system.
PropertyHandle property = PropertyHandle(id);
if (!update.activeInterpolationsForAnimations().contains(property)
&& (!elementAnimations || !elementAnimations->cssAnimations().m_previousActiveInterpolationsForAnimations.contains(property))) {
calculateTransitionUpdateForProperty(id, *transitionData, i, oldStyle, style, activeTransitions, update, animatingElement);
}
}
}
}
if (activeTransitions) {
for (const auto& entry : *activeTransitions) {
CSSPropertyID id = entry.key;
if (!anyTransitionHadTransitionAll && !animationStyleRecalc && !listedProperties.get(id - firstCSSProperty)) {
// TODO: Figure out why this fails on Chrome OS login page. crbug.com/365507
// ASSERT(animation.playStateInternal() == Animation::Finished || !(elementAnimations && elementAnimations->isAnimationStyleChange()));
update.cancelTransition(id);
} else if (entry.value.animation->finishedInternal()) {
update.finishTransition(id);
}
}
}
}
