void RuleFeatureSet::addClassToInvalidationSet(const AtomicString& className, Element* element)
{
if (DescendantInvalidationSet* invalidationSet = m_classInvalidationSets.get(className)) {
ensurePendingInvalidationList(element).append(invalidationSet);
element->setNeedsStyleInvalidation();
}
}
void StyleInvalidator::scheduleInvalidation(PassRefPtrWillBeRawPtr<DescendantInvalidationSet> invalidationSet, Element& element)
{
ASSERT(element.inActiveDocument());
ASSERT(element.styleChangeType() < SubtreeStyleChange);
InvalidationList& list = ensurePendingInvalidationList(element);
// If we're already going to invalidate the whole subtree we don't need to store any new sets.
if (!list.isEmpty() && list.last()->wholeSubtreeInvalid())
return;
// If this set would invalidate the whole subtree we can discard all existing sets.
if (invalidationSet->wholeSubtreeInvalid())
list.clear();
list.append(invalidationSet);
element.setNeedsStyleInvalidation();
}
