/**

 * This file is part of the DOM implementation for KDE.

 *

 * (C) 1999-2003 Lars Knoll (knoll@kde.org)

 * Copyright (C) 2004, 2006, 2007 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 "StyleSheetList.h"

#include "CSSStyleSheet.h"

#include "Document.h"

#include "HTMLNames.h"

#include "HTMLStyleElement.h"

#include "PlatformString.h"

namespace WebCore {

using namespace HTMLNames;

StyleSheetList::StyleSheetList(Document* doc)

    : m_doc(doc)

{

}

StyleSheetList::~StyleSheetList()

{

}

void StyleSheetList::documentDestroyed()

{

    m_doc = 0;

}

unsigned StyleSheetList::length() const

{

    return m_sheets.size();

}

StyleSheet* StyleSheetList::item(unsigned index)

{

    return index < length() ? m_sheets[index].get() : 0;

}

HTMLStyleElement* StyleSheetList::getNamedItem(const String& name) const

{

    if (!m_doc)

        return 0;

    // IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag

    // (this is consistent with all the other collections)

    // ### Bad implementation because returns a single element (are IDs always unique?)

    // and doesn't look for name attribute.

    // But unicity of stylesheet ids is good practice anyway ;)

    Element* element = m_doc->getElementById(name);

    if (element && element->hasTagName(styleTag))

        return static_cast<HTMLStyleElement*>(element);

    return 0;

}

} // namespace WebCore