Source/core/dom/CustomElementUpgradeCandidateMap.cpp

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "core/dom/CustomElementUpgradeCandidateMap.h"

namespace WebCore {

void CustomElementUpgradeCandidateMap::add(const CustomElementDescriptor& descriptor, Element* element)
{
    m_upgradeCandidates.add(element, descriptor);

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

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

    const CustomElementDescriptor& descriptor = it->value;
    m_unresolvedDefinitions.get(descriptor).remove(element);
    m_upgradeCandidates.remove(it);
}

ListHashSet<Element*> CustomElementUpgradeCandidateMap::takeUpgradeCandidatesFor(const CustomElementDescriptor& descriptor)
{
    const ListHashSet<Element*>& candidates = m_unresolvedDefinitions.take(descriptor);

    for (ElementSet::const_iterator candidate = candidates.begin(); candidate != candidates.end(); ++candidate)
        m_upgradeCandidates.remove(*candidate);

    return candidates;
}

}