void CompositorAnimations::attachCompositedLayers(const Element& element, const AnimationPlayer& player)
{
ASSERT(element.layoutObject());
DeprecatedPaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
ASSERT(layer);
WebCompositorAnimationPlayer* compositorPlayer = player.compositorPlayer();
ASSERT(compositorPlayer);
ASSERT(layer->compositedDeprecatedPaintLayerMapping());
compositorPlayer->attachLayer(layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer()->platformLayer());
}
bool CompositorAnimations::startAnimationOnCompositor(const Element& element, int group, double startTime, double timeOffset, const Timing& timing, const AnimationPlayer& player, const AnimationEffect& effect, Vector<int>& startedAnimationIds, double playerPlaybackRate)
{
ASSERT(startedAnimationIds.isEmpty());
ASSERT(isCandidateForAnimationOnCompositor(timing, element, &player, effect, playerPlaybackRate));
ASSERT(canStartAnimationOnCompositor(element));
const KeyframeEffectModelBase& keyframeEffect = toKeyframeEffectModelBase(effect);
DeprecatedPaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
ASSERT(layer);
Vector<OwnPtr<WebCompositorAnimation>> animations;
CompositorAnimationsImpl::getAnimationOnCompositor(timing, group, startTime, timeOffset, keyframeEffect, animations, playerPlaybackRate);
ASSERT(!animations.isEmpty());
for (auto& animation : animations) {
int id = animation->id();
if (RuntimeEnabledFeatures::compositorAnimationTimelinesEnabled()) {
WebCompositorAnimationPlayer* compositorPlayer = player.compositorPlayer();
ASSERT(compositorPlayer);
compositorPlayer->addAnimation(animation.leakPtr());
} else if (!layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer()->addAnimation(animation.release())) {
// FIXME: We should know ahead of time whether these animations can be started.
for (int startedAnimationId : startedAnimationIds)
cancelAnimationOnCompositor(element, player, startedAnimationId);
startedAnimationIds.clear();
return false;
}
startedAnimationIds.append(id);
}
ASSERT(!startedAnimationIds.isEmpty());
return true;
}
bool CompositorAnimations::canAttachCompositedLayers(const Element& element, const AnimationPlayer& player)
{
if (!RuntimeEnabledFeatures::compositorAnimationTimelinesEnabled())
return false;
if (!player.compositorPlayer())
return false;
if (!element.layoutObject() || !element.layoutObject()->isBoxModelObject())
return false;
DeprecatedPaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
if (!layer || !layer->isAllowedToQueryCompositingState()
|| !layer->compositedDeprecatedPaintLayerMapping()
|| !layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer())
return false;
if (!layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer()->platformLayer())
return false;
return true;
}