void CompositeAnimation::updateTransitions(RenderObject* renderer, RenderStyle* currentStyle, RenderStyle* targetStyle)
{
// If currentStyle is null or there are no old or new transitions, just skip it
if (!currentStyle || (!targetStyle->transitions() && m_transitions.isEmpty()))
return;
// Mark all existing transitions as no longer active. We will mark the still active ones
// in the next loop and then toss the ones that didn't get marked.
CSSPropertyTransitionsMap::const_iterator end = m_transitions.end();
for (CSSPropertyTransitionsMap::const_iterator it = m_transitions.begin(); it != end; ++it)
it->second->setActive(false);
RefPtr<RenderStyle> modifiedCurrentStyle;
// Check to see if we need to update the active transitions
if (targetStyle->transitions()) {
for (size_t i = 0; i < targetStyle->transitions()->size(); ++i) {
const Animation* anim = targetStyle->transitions()->animation(i);
bool isActiveTransition = anim->duration() || anim->delay() > 0;
int prop = anim->property();
if (prop == cAnimateNone)
continue;
bool all = prop == cAnimateAll;
// Handle both the 'all' and single property cases. For the single prop case, we make only one pass
// through the loop.
for (int propertyIndex = 0; propertyIndex < AnimationBase::getNumProperties(); ++propertyIndex) {
if (all) {
// Get the next property which is not a shorthand.
bool isShorthand;
prop = AnimationBase::getPropertyAtIndex(propertyIndex, isShorthand);
if (isShorthand)
continue;
}
// ImplicitAnimations are always hashed by actual properties, never cAnimateAll
ASSERT(prop >= firstCSSProperty && prop < (firstCSSProperty + numCSSProperties));
// If there is a running animation for this property, the transition is overridden
// and we have to use the unanimatedStyle from the animation. We do the test
// against the unanimated style here, but we "override" the transition later.
RefPtr<KeyframeAnimation> keyframeAnim = getAnimationForProperty(prop);
RenderStyle* fromStyle = keyframeAnim ? keyframeAnim->unanimatedStyle() : currentStyle;
// See if there is a current transition for this prop
ImplicitAnimation* implAnim = m_transitions.get(prop).get();
bool equal = true;
if (implAnim) {
// If we are post active don't bother setting the active flag. This will cause
// this animation to get removed at the end of this function.
if (!implAnim->postActive())
implAnim->setActive(true);
// This might be a transition that is just finishing. That would be the case
// if it were postActive. But we still need to check for equality because
// it could be just finishing AND changing to a new goal state.
//
// This implAnim might also not be an already running transition. It might be
// newly added to the list in a previous iteration. This would happen if
// you have both an explicit transition-property and 'all' in the same
// list. In this case, the latter one overrides the earlier one, so we
// behave as though this is a running animation being replaced.
if (!implAnim->isTargetPropertyEqual(prop, targetStyle)) {
#if USE(ACCELERATED_COMPOSITING)
// For accelerated animations we need to return a new RenderStyle with the _current_ value
// of the property, so that restarted transitions use the correct starting point.
if (AnimationBase::animationOfPropertyIsAccelerated(prop) && !implAnim->isFallbackAnimating()) {
if (!modifiedCurrentStyle)
modifiedCurrentStyle = RenderStyle::clone(currentStyle);
implAnim->blendPropertyValueInStyle(prop, modifiedCurrentStyle.get());
}
#endif
m_transitions.remove(prop);
equal = false;
}
} else {
// We need to start a transition if it is active and the properties don't match
equal = !isActiveTransition || AnimationBase::propertiesEqual(prop, fromStyle, targetStyle);
}
// We can be in this loop with an inactive transition (!isActiveTransition). We need
// to do that to check to see if we are canceling a transition. But we don't want to
// start one of the inactive transitions. So short circuit that here. (See
// <https://bugs.webkit.org/show_bug.cgi?id=24787>
if (!equal && isActiveTransition) {
// Add the new transition
m_transitions.set(prop, ImplicitAnimation::create(const_cast<Animation*>(anim), prop, renderer, this, modifiedCurrentStyle ? modifiedCurrentStyle.get() : fromStyle));
}
// We only need one pass for the single prop case
if (!all)
break;
}
}
}
// Make a list of transitions to be removed
Vector<int> toBeRemoved;
end = m_transitions.end();
for (CSSPropertyTransitionsMap::const_iterator it = m_transitions.begin(); it != end; ++it) {
ImplicitAnimation* anim = it->second.get();
if (!anim->active())
toBeRemoved.append(anim->animatingProperty());
}
// Now remove the transitions from the list
for (size_t j = 0; j < toBeRemoved.size(); ++j)
m_transitions.remove(toBeRemoved[j]);
}
void CompositeAnimation::updateTransitions(RenderElement* renderer, RenderStyle* currentStyle, RenderStyle* targetStyle)
{
// If currentStyle is null or there are no old or new transitions, just skip it
if (!currentStyle || (!targetStyle->transitions() && m_transitions.isEmpty()))
return;
// Mark all existing transitions as no longer active. We will mark the still active ones
// in the next loop and then toss the ones that didn't get marked.
for (auto& transition : m_transitions.values())
transition->setActive(false);
RefPtr<RenderStyle> modifiedCurrentStyle;
// Check to see if we need to update the active transitions
if (targetStyle->transitions()) {
for (size_t i = 0; i < targetStyle->transitions()->size(); ++i) {
Animation& animation = targetStyle->transitions()->animation(i);
bool isActiveTransition = !m_suspended && (animation.duration() || animation.delay() > 0);
Animation::AnimationMode mode = animation.animationMode();
if (mode == Animation::AnimateNone)
continue;
CSSPropertyID prop = animation.property();
bool all = mode == Animation::AnimateAll;
// Handle both the 'all' and single property cases. For the single prop case, we make only one pass
// through the loop.
for (int propertyIndex = 0; propertyIndex < CSSPropertyAnimation::getNumProperties(); ++propertyIndex) {
if (all) {
// Get the next property which is not a shorthand.
bool isShorthand;
prop = CSSPropertyAnimation::getPropertyAtIndex(propertyIndex, isShorthand);
if (isShorthand)
continue;
}
// ImplicitAnimations are always hashed by actual properties, never animateAll.
ASSERT(prop >= firstCSSProperty && prop < (firstCSSProperty + numCSSProperties));
// If there is a running animation for this property, the transition is overridden
// and we have to use the unanimatedStyle from the animation. We do the test
// against the unanimated style here, but we "override" the transition later.
RefPtr<KeyframeAnimation> keyframeAnim = getAnimationForProperty(prop);
RenderStyle* fromStyle = keyframeAnim ? keyframeAnim->unanimatedStyle() : currentStyle;
// See if there is a current transition for this prop
ImplicitAnimation* implAnim = m_transitions.get(prop);
bool equal = true;
if (implAnim) {
// If we are post active don't bother setting the active flag. This will cause
// this animation to get removed at the end of this function.
if (!implAnim->postActive())
implAnim->setActive(true);
// This might be a transition that is just finishing. That would be the case
// if it were postActive. But we still need to check for equality because
// it could be just finishing AND changing to a new goal state.
//
// This implAnim might also not be an already running transition. It might be
// newly added to the list in a previous iteration. This would happen if
// you have both an explicit transition-property and 'all' in the same
// list. In this case, the latter one overrides the earlier one, so we
// behave as though this is a running animation being replaced.
if (!implAnim->isTargetPropertyEqual(prop, targetStyle)) {
// For accelerated animations we need to return a new RenderStyle with the _current_ value
// of the property, so that restarted transitions use the correct starting point.
if (CSSPropertyAnimation::animationOfPropertyIsAccelerated(prop) && implAnim->isAccelerated()) {
if (!modifiedCurrentStyle)
modifiedCurrentStyle = RenderStyle::clone(currentStyle);
implAnim->blendPropertyValueInStyle(prop, modifiedCurrentStyle.get());
}
LOG(Animations, "Removing existing ImplicitAnimation %p for property %s", implAnim, getPropertyName(prop));
animationController().animationWillBeRemoved(implAnim);
m_transitions.remove(prop);
equal = false;
}
} else {
// We need to start a transition if it is active and the properties don't match
equal = !isActiveTransition || CSSPropertyAnimation::propertiesEqual(prop, fromStyle, targetStyle);
}
// We can be in this loop with an inactive transition (!isActiveTransition). We need
// to do that to check to see if we are canceling a transition. But we don't want to
// start one of the inactive transitions. So short circuit that here. (See
// <https://bugs.webkit.org/show_bug.cgi?id=24787>
if (!equal && isActiveTransition) {
// Add the new transition
RefPtr<ImplicitAnimation> implicitAnimation = ImplicitAnimation::create(animation, prop, renderer, this, modifiedCurrentStyle ? modifiedCurrentStyle.get() : fromStyle);
LOG(Animations, "Created ImplicitAnimation %p for property %s duration %.2f delay %.2f", implicitAnimation.get(), getPropertyName(prop), animation.duration(), animation.delay());
m_transitions.set(prop, implicitAnimation.release());
}
// We only need one pass for the single prop case
if (!all)
break;
}
}
}
// Make a list of transitions to be removed
Vector<int> toBeRemoved;
for (auto& transition : m_transitions.values()) {
if (!transition->active()) {
animationController().animationWillBeRemoved(transition.get());
toBeRemoved.append(transition->animatingProperty());
LOG(Animations, "Removing ImplicitAnimation %p for property %s", transition.get(), getPropertyName(transition->animatingProperty()));
}
}
// Now remove the transitions from the list
for (auto propertyToRemove : toBeRemoved)
m_transitions.remove(propertyToRemove);
}
