bool StyleInvalidator::SiblingData::matchCurrentInvalidationSets(Element& element, RecursionData& recursionData)
{
bool thisElementNeedsStyleRecalc = false;
ASSERT(!recursionData.wholeSubtreeInvalid());
unsigned index = 0;
while (index < m_invalidationEntries.size()) {
if (m_elementIndex > m_invalidationEntries[index].m_invalidationLimit) {
// m_invalidationEntries[index] only applies to earlier siblings. Remove it.
m_invalidationEntries[index] = m_invalidationEntries.last();
m_invalidationEntries.removeLast();
continue;
}
const SiblingInvalidationSet& invalidationSet = *m_invalidationEntries[index].m_invalidationSet;
++index;
if (!invalidationSet.invalidatesElement(element))
continue;
if (invalidationSet.invalidatesSelf())
thisElementNeedsStyleRecalc = true;
if (const DescendantInvalidationSet* descendants = invalidationSet.siblingDescendants()) {
if (descendants->wholeSubtreeInvalid()) {
element.setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::StyleInvalidator));
return true;
}
if (!descendants->isEmpty())
recursionData.pushInvalidationSet(*descendants);
}
}
return thisElementNeedsStyleRecalc;
}
void StyleInvalidator::pushInvalidationSetsForElement(Element& element, RecursionData& recursionData, SiblingData& siblingData)
{
PendingInvalidations* pendingInvalidations = m_pendingInvalidationMap.get(&element);
ASSERT(pendingInvalidations);
for (const auto& invalidationSet : pendingInvalidations->siblings())
siblingData.pushInvalidationSet(toSiblingInvalidationSet(*invalidationSet));
if (!pendingInvalidations->descendants().isEmpty()) {
for (const auto& invalidationSet : pendingInvalidations->descendants())
recursionData.pushInvalidationSet(toDescendantInvalidationSet(*invalidationSet));
if (UNLIKELY(*s_tracingEnabled)) {
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.invalidationTracking"),
"StyleInvalidatorInvalidationTracking",
TRACE_EVENT_SCOPE_THREAD,
"data", InspectorStyleInvalidatorInvalidateEvent::invalidationList(element, pendingInvalidations->descendants()));
}
}
}
bool StyleInvalidator::SiblingData::matchCurrentInvalidationSets(Element& element, RecursionData& recursionData) const
{
bool thisElementNeedsStyleRecalc = false;
ASSERT(!recursionData.wholeSubtreeInvalid());
unsigned index = 0;
while (index < m_invalidationEntries.size()) {
if (m_elementIndex > m_invalidationEntries[index].m_invalidationLimit) {
// m_invalidationEntries[index] only applies to earlier siblings. Remove it.
m_invalidationEntries[index] = m_invalidationEntries.last();
m_invalidationEntries.removeLast();
continue;
}
const SiblingInvalidationSet& invalidationSet = *m_invalidationEntries[index].m_invalidationSet;
if (invalidationSet.invalidatesElement(element)) {
const DescendantInvalidationSet& descendants = invalidationSet.descendants();
if (descendants.wholeSubtreeInvalid()) {
// Avoid directly setting SubtreeStyleChange on element, or ContainerNode::checkForChildrenAdjacentRuleChanges()
// may propagate the SubtreeStyleChange to our own siblings' subtrees.
for (Element* child = ElementTraversal::firstChild(element); child; child = ElementTraversal::nextSibling(*child)) {
child->setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::SiblingSelector));
}
return true;
}
if (descendants.invalidatesSelf())
thisElementNeedsStyleRecalc = true;
if (!descendants.isEmpty())
recursionData.pushInvalidationSet(descendants);
}
++index;
}
return thisElementNeedsStyleRecalc;
}
void StyleInvalidator::pushInvalidationSetsForContainerNode(ContainerNode& node, RecursionData& recursionData, SiblingData& siblingData)
{
PendingInvalidations* pendingInvalidations = m_pendingInvalidationMap.get(&node);
ASSERT(pendingInvalidations);
for (const auto& invalidationSet : pendingInvalidations->siblings())
siblingData.pushInvalidationSet(toSiblingInvalidationSet(*invalidationSet));
if (node.getStyleChangeType() >= SubtreeStyleChange)
return;
if (!pendingInvalidations->descendants().isEmpty()) {
for (const auto& invalidationSet : pendingInvalidations->descendants())
recursionData.pushInvalidationSet(*invalidationSet);
if (UNLIKELY(*s_tracingEnabled)) {
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.invalidationTracking"),
"StyleInvalidatorInvalidationTracking",
TRACE_EVENT_SCOPE_THREAD,
"data", InspectorStyleInvalidatorInvalidateEvent::invalidationList(node, pendingInvalidations->descendants()));
}
}
}
