Source/core/dom/CustomElementUpgradeCandidateMap.cpp

/*
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#include "config.h"

#include "core/dom/CustomElementUpgradeCandidateMap.h"

namespace WebCore {

void CustomElementUpgradeCandidateMap::add(CustomElementDefinition::CustomElementKind kind, const AtomicString& type, Element* element)
{
    m_unresolvedElements.add(element, RequiredDefinition(kind, type));

    UnresolvedDefinitionMap::iterator it = m_unresolvedDefinitions.find(type);
    if (it == m_unresolvedDefinitions.end())
        it = m_unresolvedDefinitions.add(type, ElementSet()).iterator;
    it->value.add(element);
}

bool CustomElementUpgradeCandidateMap::contains(Element* element) const
{
    return m_unresolvedElements.contains(element);
}

void CustomElementUpgradeCandidateMap::remove(Element* element)
{
    UnresolvedElementMap::iterator it = m_unresolvedElements.find(element);
    if (it == m_unresolvedElements.end())
        return;

    const AtomicString& type = it->value.second;
    m_unresolvedDefinitions.get(type).remove(element);
    m_unresolvedElements.remove(it);
}

CustomElementUpgradeCandidateMap::ElementSet CustomElementUpgradeCandidateMap::takeUpgradeCandidatesFor(CustomElementDefinition* definition)
{
    UnresolvedDefinitionMap::iterator it = m_unresolvedDefinitions.find(definition->type());
    if (it == m_unresolvedDefinitions.end())
        return ElementSet();

    const ElementSet& candidatesForThisType = it->value;
    ElementSet matchingCandidates;

    // Filter the set based on whether the definition matches
    for (ElementSet::const_iterator candidate = candidatesForThisType.begin(); candidate != candidatesForThisType.end(); ++candidate) {
        if (matches(definition, *candidate)) {
            matchingCandidates.add(*candidate);
            m_unresolvedElements.remove(*candidate);
        }
    }

    m_unresolvedDefinitions.remove(it);
    return matchingCandidates;
}

bool CustomElementUpgradeCandidateMap::matches(CustomElementDefinition* definition, Element* element)
{
    ASSERT(m_unresolvedElements.contains(element));
    const RequiredDefinition& requirement = m_unresolvedElements.get(element);
    return definition->kind() == requirement.first && definition->type() == requirement.second && definition->namespaceURI() == element->namespaceURI() && definition->name() == element->localName();
}

}