/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 *           (C) 2001 Peter Kelly (pmk@post.com)
 *           (C) 2001 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2013 Apple Inc. All rights reserved.
 *           (C) 2007 Eric Seidel (eric@webkit.org)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

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

#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/Attr.h"
#include "core/dom/Element.h"
#include "core/dom/ExceptionCode.h"

namespace blink {

NamedNodeMap::NamedNodeMap(Element* element)
    : m_element(element)
{
    // Only supports NamedNodeMaps with Element associated.
    ASSERT(m_element);
    ScriptWrappable::init(this);
}

#if !ENABLE(OILPAN)
void NamedNodeMap::ref()
{
    m_element->ref();
}

void NamedNodeMap::deref()
{
    m_element->deref();
}
#endif

PassRefPtrWillBeRawPtr<Attr> NamedNodeMap::getNamedItem(const AtomicString& name) const
{
    return m_element->getAttributeNode(name);
}

PassRefPtrWillBeRawPtr<Attr> NamedNodeMap::item(unsigned index) const
{
    AttributeCollection attributes = m_element->attributes();
    if (index >= attributes.size())
        return nullptr;
    return m_element->ensureAttr(attributes[index].name());
}

size_t NamedNodeMap::length() const
{
    return m_element->attributes().size();
}

void NamedNodeMap::trace(Visitor* visitor)
{
    visitor->trace(m_element);
}

} // namespace blink