/*

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

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

 *           (C) 2000 Simon Hausmann (hausmann@kde.org)

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

 * Copyright (C) 2004, 2006, 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 "HTMLHeadElement.h"

#include "HTMLNames.h"

#include "Text.h"

namespace WebCore {

using namespace HTMLNames;

HTMLHeadElement::HTMLHeadElement(const QualifiedName& tagName, Document* document)

    : HTMLElement(tagName, document)

{

    ASSERT(hasTagName(headTag));

}

PassRefPtr<HTMLHeadElement> HTMLHeadElement::create(Document* document)

{

    return adoptRef(new HTMLHeadElement(headTag, document));

}

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

{

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

}

bool HTMLHeadElement::childAllowed(Node* newChild)

{

    // Do not allow non-whitespace text nodes in the head

    if (newChild->isTextNode())

        return static_cast<Text*>(newChild)->containsOnlyWhitespace();

    return HTMLElement::childAllowed(newChild);

}

bool HTMLHeadElement::checkDTD(const Node* newChild)

{

    return newChild->hasTagName(noscriptTag) || newChild->hasTagName(titleTag) || newChild->hasTagName(isindexTag) ||

           newChild->hasTagName(baseTag) || newChild->hasTagName(scriptTag) ||

           newChild->hasTagName(styleTag) || newChild->hasTagName(metaTag) ||

           newChild->hasTagName(linkTag) || newChild->isTextNode();

}

}