PseudoClassChangeInvalidation.cpp   [plain text]

/*
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#include "config.h"
#include "PseudoClassChangeInvalidation.h"

#include "ElementChildIterator.h"
#include "StyleInvalidationFunctions.h"

namespace WebCore {
namespace Style {

void PseudoClassChangeInvalidation::computeInvalidation(CSSSelector::PseudoClassType pseudoClass)
{
    bool shouldInvalidateCurrent = false;
    bool mayAffectStyleInShadowTree = false;

    traverseRuleFeatures(m_element, [&] (const RuleFeatureSet& features, bool mayAffectShadowTree) {
        if (mayAffectShadowTree && features.pseudoClassRules.contains(pseudoClass))
            mayAffectStyleInShadowTree = true;
        if (m_element.shadowRoot() && features.pseudoClassesAffectingHost.contains(pseudoClass))
            shouldInvalidateCurrent = true;
    });

    if (mayAffectStyleInShadowTree) {
        // FIXME: We should do fine-grained invalidation for shadow tree.
        m_element.invalidateStyleForSubtree();
    }

    if (shouldInvalidateCurrent)
        m_element.invalidateStyle();

    auto& ruleSets = m_element.styleResolver().ruleSets();
    if (auto* invalidationRuleSets = ruleSets.pseudoClassInvalidationRuleSets(pseudoClass)) {
        for (auto& invalidationRuleSet : *invalidationRuleSets)
            Invalidator::addToMatchElementRuleSets(m_matchElementRuleSets, invalidationRuleSet);
    }
}

void PseudoClassChangeInvalidation::invalidateStyleWithRuleSets()
{
    Invalidator::invalidateWithMatchElementRuleSets(m_element, m_matchElementRuleSets);
}

}
}