void ScopedStyleResolver::matchAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, bool applyAuthorStyles)
{
collector.clearMatchedRules();
collector.matchedResult().ranges.lastAuthorRule = collector.matchedResult().matchedProperties.size() - 1;
collectMatchingAuthorRules(collector, includeEmptyRules, applyAuthorStyles, ignoreCascadeScope);
collector.sortAndTransferMatchedRules();
}
void ScopedStyleResolver::matchHostRules(ElementRuleCollector& collector, bool includeEmptyRules)
{
if (m_atHostRules.isEmpty() || !m_scopingNode->isElementNode())
return;
ElementShadow* shadow = toElement(m_scopingNode)->shadow();
if (!shadow)
return;
collector.clearMatchedRules();
collector.matchedResult().ranges.lastAuthorRule = collector.matchedResult().matchedProperties.size() - 1;
// FIXME(99827): https://bugs.webkit.org/show_bug.cgi?id=99827
// add a new flag to ElementShadow and cache whether any @host @-rules are
// applied to the element or not. So we can quickly exit this method
// by using the flag.
ShadowRoot* shadowRoot = shadow->youngestShadowRoot();
for (; shadowRoot; shadowRoot = shadowRoot->olderShadowRoot())
if (!ScopeContentDistribution::hasShadowElement(shadowRoot))
break;
// All shadow roots have <shadow>.
if (!shadowRoot)
shadowRoot = shadow->oldestShadowRoot();
StyleResolver::RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
collector.setBehaviorAtBoundary(static_cast<SelectorChecker::BehaviorAtBoundary>(SelectorChecker::DoesNotCrossBoundary | SelectorChecker::ScopeContainsLastMatchedElement));
for (; shadowRoot; shadowRoot = shadowRoot->youngerShadowRoot()) {
if (RuleSet* ruleSet = atHostRuleSetFor(shadowRoot))
collector.collectMatchingRules(MatchRequest(ruleSet, includeEmptyRules, m_scopingNode), ruleRange);
}
collector.sortAndTransferMatchedRules();
}
void ScopedStyleResolver::matchAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, bool applyAuthorStyles)
{
if (m_authorStyle) {
collector.clearMatchedRules();
collector.matchedResult().ranges.lastAuthorRule = collector.matchedResult().matchedProperties.size() - 1;
// Match author rules.
MatchRequest matchRequest(m_authorStyle.get(), includeEmptyRules, m_scopingNode);
StyleResolver::RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
collector.setBehaviorAtBoundary(applyAuthorStyles ? SelectorChecker::DoesNotCrossBoundary : static_cast<SelectorChecker::BehaviorAtBoundary>(SelectorChecker::DoesNotCrossBoundary | SelectorChecker::ScopeContainsLastMatchedElement));
collector.collectMatchingRules(matchRequest, ruleRange);
collector.collectMatchingRulesForRegion(matchRequest, ruleRange);
collector.sortAndTransferMatchedRules();
}
}
void TreeBoundaryCrossingRules::collectTreeBoundaryCrossingRules(Element* element, ElementRuleCollector& collector, bool includeEmptyRules)
{
if (m_treeBoundaryCrossingRuleSetMap.isEmpty())
return;
RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
// When comparing rules declared in outer treescopes, outer's rules win.
CascadeOrder outerCascadeOrder = size() + size();
// When comparing rules declared in inner treescopes, inner's rules win.
CascadeOrder innerCascadeOrder = size();
for (DocumentOrderedList::iterator it = m_scopingNodes.begin(); it != m_scopingNodes.end(); ++it) {
const ContainerNode* scopingNode = toContainerNode(*it);
CSSStyleSheetRuleSubSet* ruleSubSet = m_treeBoundaryCrossingRuleSetMap.get(scopingNode);
bool isInnerTreeScope = element->treeScope().isInclusiveAncestorOf(scopingNode->treeScope());
CascadeOrder cascadeOrder = isInnerTreeScope ? innerCascadeOrder : outerCascadeOrder;
for (CSSStyleSheetRuleSubSet::iterator it = ruleSubSet->begin(); it != ruleSubSet->end(); ++it) {
CSSStyleSheet* parentStyleSheet = it->first;
RuleSet* ruleSet = it->second.get();
collector.collectMatchingRules(MatchRequest(ruleSet, includeEmptyRules, scopingNode, parentStyleSheet), ruleRange, SelectorChecker::ScopeContainsLastMatchedElement, ignoreCascadeScope, cascadeOrder);
}
++innerCascadeOrder;
--outerCascadeOrder;
}
}
void ScopedStyleResolver::collectMatchingTreeBoundaryCrossingRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeOrder cascadeOrder)
{
RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
for (const auto& rules : *m_treeBoundaryCrossingRuleSet) {
MatchRequest request(rules->m_ruleSet.get(), includeEmptyRules, &treeScope().rootNode(), rules->m_parentStyleSheet, rules->m_parentIndex);
collector.collectMatchingRules(request, ruleRange, cascadeOrder, true);
}
}
void ScopedStyleResolver::collectMatchingShadowHostRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeOrder cascadeOrder)
{
RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
ASSERT(!collector.scopeContainsLastMatchedElement());
collector.setScopeContainsLastMatchedElement(true);
for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
ASSERT(m_authorStyleSheets[i]->ownerNode());
MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), includeEmptyRules, &m_scope->rootNode(), m_authorStyleSheets[i], i);
collector.collectMatchingShadowHostRules(matchRequest, ruleRange, cascadeOrder);
}
collector.setScopeContainsLastMatchedElement(false);
}
void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope cascadeScope, CascadeOrder cascadeOrder)
{
const ContainerNode* scopingNode = &m_scopingNode;
unsigned behaviorAtBoundary = SelectorChecker::DoesNotCrossBoundary;
if (!applyAuthorStyles)
behaviorAtBoundary |= SelectorChecker::ScopeContainsLastMatchedElement;
if (m_scopingNode.isShadowRoot()) {
scopingNode = toShadowRoot(m_scopingNode).host();
behaviorAtBoundary |= SelectorChecker::ScopeIsShadowHost;
}
for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), includeEmptyRules, scopingNode, applyAuthorStyles, i, m_authorStyleSheets[i]);
collector.collectMatchingRules(matchRequest, collector.matchedResult().ranges.authorRuleRange(), static_cast<SelectorChecker::BehaviorAtBoundary>(behaviorAtBoundary), cascadeScope, cascadeOrder);
}
}
void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, bool applyAuthorStyles, CascadeScope cascadeScope, CascadeOrder cascadeOrder)
{
if (!m_authorStyle)
return;
const ContainerNode* scopingNode = &m_scopingNode;
unsigned behaviorAtBoundary = SelectorChecker::DoesNotCrossBoundary;
if (!applyAuthorStyles)
behaviorAtBoundary |= SelectorChecker::ScopeContainsLastMatchedElement;
if (m_scopingNode.isShadowRoot()) {
scopingNode = toShadowRoot(m_scopingNode).host();
behaviorAtBoundary |= SelectorChecker::ScopeIsShadowHost;
}
MatchRequest matchRequest(m_authorStyle.get(), includeEmptyRules, scopingNode, applyAuthorStyles);
RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
collector.collectMatchingRules(matchRequest, ruleRange, static_cast<SelectorChecker::BehaviorAtBoundary>(behaviorAtBoundary), cascadeScope, cascadeOrder);
collector.collectMatchingRulesForRegion(matchRequest, ruleRange, static_cast<SelectorChecker::BehaviorAtBoundary>(behaviorAtBoundary), cascadeScope, cascadeOrder);
}
void TreeBoundaryCrossingRules::collectTreeBoundaryCrossingRules(Element* element, ElementRuleCollector& collector, bool includeEmptyRules)
{
if (m_treeBoundaryCrossingRuleSetMap.isEmpty())
return;
RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
// When comparing rules declared in outer treescopes, outer's rules win.
CascadeOrder outerCascadeOrder = size() + size();
// When comparing rules declared in inner treescopes, inner's rules win.
CascadeOrder innerCascadeOrder = size();
for (DocumentOrderedList::iterator it = m_scopingNodes.begin(); it != m_scopingNodes.end(); ++it) {
const ContainerNode* scopingNode = toContainerNode(*it);
CSSStyleSheetRuleSubSet* ruleSubSet = m_treeBoundaryCrossingRuleSetMap.get(scopingNode);
unsigned boundaryBehavior = SelectorChecker::ScopeContainsLastMatchedElement;
bool isInnerTreeScope = element->treeScope().isInclusiveAncestorOf(scopingNode->treeScope());
// If a given scoping node is a shadow root and a given element is in a descendant tree of tree hosted by
// the scoping node's shadow host, we should use ScopeIsShadowHost.
if (scopingNode && scopingNode->isShadowRoot()) {
if (element->isInDescendantTreeOf(toShadowRoot(scopingNode)->host()))
boundaryBehavior |= SelectorChecker::ScopeIsShadowHost;
scopingNode = toShadowRoot(scopingNode)->host();
}
CascadeOrder cascadeOrder = isInnerTreeScope ? innerCascadeOrder : outerCascadeOrder;
for (CSSStyleSheetRuleSubSet::iterator it = ruleSubSet->begin(); it != ruleSubSet->end(); ++it) {
CSSStyleSheet* parentStyleSheet = it->first;
RuleSet* ruleSet = it->second.get();
collector.collectMatchingRules(MatchRequest(ruleSet, includeEmptyRules, scopingNode, parentStyleSheet), ruleRange, static_cast<SelectorChecker::BehaviorAtBoundary>(boundaryBehavior), ignoreCascadeScope, cascadeOrder);
}
++innerCascadeOrder;
--outerCascadeOrder;
}
}