/*

 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)

 *           (C) 1999 Antti Koivisto (koivisto@kde.org)

 *           (C) 2001 Dirk Mueller (mueller@kde.org)

 * Copyright (C) 2003, 2010 Apple Inc. All rights reserved.

 *

 * 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 "HTMLMetaElement.h"

#include "Attribute.h"

#include "Document.h"

#include "HTMLNames.h"

namespace WebCore {

using namespace HTMLNames;

inline HTMLMetaElement::HTMLMetaElement(const QualifiedName& tagName, Document* document)

    : HTMLElement(tagName, document)

{

    ASSERT(hasTagName(metaTag));

}

PassRefPtr<HTMLMetaElement> HTMLMetaElement::create(const QualifiedName& tagName, Document* document)

{

    return adoptRef(new HTMLMetaElement(tagName, document));

}

void HTMLMetaElement::parseMappedAttribute(Attribute* attr)

{

    if (attr->name() == http_equivAttr) {

        m_equiv = attr->value();

        process();

    } else if (attr->name() == contentAttr) {

        m_content = attr->value();

        process();

    } else if (attr->name() == nameAttr) {

        // Do nothing.

    } else

        HTMLElement::parseMappedAttribute(attr);

}

void HTMLMetaElement::insertedIntoDocument()

{

    HTMLElement::insertedIntoDocument();

    process();

}

void HTMLMetaElement::process()

{

    if (!inDocument() || m_content.isNull())

        return;

    if (equalIgnoringCase(name(), "viewport"))

        document()->processViewport(m_content);

    // Get the document to process the tag, but only if we're actually part of DOM tree (changing a meta tag while

    // it's not in the tree shouldn't have any effect on the document)

    if (!m_equiv.isNull())

        document()->processHttpEquiv(m_equiv, m_content);

}

String HTMLMetaElement::content() const

{

    return getAttribute(contentAttr);

}

String HTMLMetaElement::httpEquiv() const

{

    return getAttribute(http_equivAttr);

}

String HTMLMetaElement::name() const

{

    return getAttribute(nameAttr);

}

}