void KeyframeEffectModelBase::ensureKeyframeGroups() const
{
if (m_keyframeGroups)
return;
m_keyframeGroups = adoptPtrWillBeNoop(new KeyframeGroupMap);
const KeyframeVector keyframes = normalizedKeyframes(getFrames());
for (KeyframeVector::const_iterator keyframeIter = keyframes.begin(); keyframeIter != keyframes.end(); ++keyframeIter) {
const Keyframe* keyframe = keyframeIter->get();
PropertySet keyframeProperties = keyframe->properties();
for (PropertySet::const_iterator propertyIter = keyframeProperties.begin(); propertyIter != keyframeProperties.end(); ++propertyIter) {
CSSPropertyID property = *propertyIter;
ASSERT_WITH_MESSAGE(!isExpandedShorthand(property), "Web Animations: Encountered shorthand CSS property (%d) in normalized keyframes.", property);
KeyframeGroupMap::iterator groupIter = m_keyframeGroups->find(property);
PropertySpecificKeyframeGroup* group;
if (groupIter == m_keyframeGroups->end())
group = m_keyframeGroups->add(property, adoptPtrWillBeNoop(new PropertySpecificKeyframeGroup)).storedValue->value.get();
else
group = groupIter->value.get();
group->appendKeyframe(keyframe->createPropertySpecificKeyframe(property));
}
}
// Add synthetic keyframes.
for (KeyframeGroupMap::iterator iter = m_keyframeGroups->begin(); iter != m_keyframeGroups->end(); ++iter) {
iter->value->addSyntheticKeyframeIfRequired(this);
iter->value->removeRedundantKeyframes();
}
}
