bool RuleSet::findBestRuleSetAndAdd(const CSSSelector& component, RuleData& ruleData)
{
AtomicString id;
AtomicString className;
AtomicString customPseudoElementName;
AtomicString tagName;
#ifndef NDEBUG
m_allRules.append(ruleData);
#endif
const CSSSelector* it = &component;
for (; it && it->relation() == CSSSelector::SubSelector; it = it->tagHistory())
extractValuesforSelector(it, id, className, customPseudoElementName, tagName);
if (it)
extractValuesforSelector(it, id, className, customPseudoElementName, tagName);
// Prefer rule sets in order of most likely to apply infrequently.
if (!id.isEmpty()) {
addToRuleSet(id, ensurePendingRules()->idRules, ruleData);
return true;
}
if (!className.isEmpty()) {
addToRuleSet(className, ensurePendingRules()->classRules, ruleData);
return true;
}
if (!customPseudoElementName.isEmpty()) {
// Custom pseudos come before ids and classes in the order of tagHistory, and have a relation of
// ShadowPseudo between them. Therefore we should never be a situation where extractValuesforSelector
// finsd id and className in addition to custom pseudo.
ASSERT(id.isEmpty() && className.isEmpty());
addToRuleSet(customPseudoElementName, ensurePendingRules()->shadowPseudoElementRules, ruleData);
return true;
}
if (component.pseudoType() == CSSSelector::PseudoCue) {
m_cuePseudoRules.append(ruleData);
return true;
}
if (SelectorChecker::isCommonPseudoClassSelector(component)) {
switch (component.pseudoType()) {
case CSSSelector::PseudoLink:
case CSSSelector::PseudoVisited:
case CSSSelector::PseudoAnyLink:
m_linkPseudoClassRules.append(ruleData);
return true;
case CSSSelector::PseudoFocus:
m_focusPseudoClassRules.append(ruleData);
return true;
default:
ASSERT_NOT_REACHED();
return true;
}
}
if (!tagName.isEmpty()) {
addToRuleSet(tagName, ensurePendingRules()->tagRules, ruleData);
return true;
}
if (component.isHostPseudoClass()) {
m_shadowHostRules.append(ruleData);
return true;
}
return false;
}
bool RuleSet::findBestRuleSetAndAdd(const CSSSelector& component, RuleData& ruleData)
{
AtomicString id;
AtomicString className;
AtomicString customPseudoElementName;
AtomicString tagName;
#ifndef NDEBUG
m_allRules.append(ruleData);
#endif
const CSSSelector* it = &component;
for (; it && it->relation() == CSSSelector::SubSelector; it = it->tagHistory())
extractValuesforSelector(it, id, className, customPseudoElementName, tagName);
if (it)
extractValuesforSelector(it, id, className, customPseudoElementName, tagName);
// Prefer rule sets in order of most likely to apply infrequently.
if (!id.isEmpty()) {
addToRuleSet(id, ensurePendingRules()->idRules, ruleData);
return true;
}
if (!className.isEmpty()) {
addToRuleSet(className, ensurePendingRules()->classRules, ruleData);
return true;
}
if (!customPseudoElementName.isEmpty()) {
// Custom pseudos come before ids and classes in the order of tagHistory, and have a relation of
// ShadowPseudo between them. Therefore we should never be a situation where extractValuesforSelector
// finsd id and className in addition to custom pseudo.
ASSERT(id.isEmpty() && className.isEmpty());
addToRuleSet(customPseudoElementName, ensurePendingRules()->shadowPseudoElementRules, ruleData);
return true;
}
switch (component.pseudoType()) {
case CSSSelector::PseudoCue:
m_cuePseudoRules.append(ruleData);
return true;
case CSSSelector::PseudoLink:
case CSSSelector::PseudoVisited:
case CSSSelector::PseudoAnyLink:
m_linkPseudoClassRules.append(ruleData);
return true;
case CSSSelector::PseudoFocus:
m_focusPseudoClassRules.append(ruleData);
return true;
default:
break;
}
if (!tagName.isEmpty()) {
addToRuleSet(tagName, ensurePendingRules()->tagRules, ruleData);
return true;
}
// TODO(esprehn): We shouldn't favor tagName over m_shadowHostRules, it means
// selectors with div:host end up in the tagName list matched against all tags
// even though they can't match anything at all.
if (component.isHostPseudoClass()) {
m_shadowHostRules.append(ruleData);
return true;
}
return false;
}