/**

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

 * Copyright (C) 2004, 2006 Apple Computer, Inc.

 *

 * 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 "StyleSheet.h"

#include "MediaList.h"

namespace WebCore {

StyleSheet::StyleSheet(StyleSheet* parentSheet, const String& originalURL, const KURL& finalURL)

    : StyleList(parentSheet)

    , m_parentNode(0)

    , m_originalURL(originalURL)

    , m_finalURL(finalURL)

    , m_disabled(false)

{

}

StyleSheet::StyleSheet(Node* parentNode, const String& originalURL, const KURL& finalURL)

    : StyleList(0)

    , m_parentNode(parentNode)

    , m_originalURL(originalURL)

    , m_finalURL(finalURL)

    , m_disabled(false)

{

}

StyleSheet::StyleSheet(StyleBase* owner, const String& originalURL, const KURL& finalURL)

    : StyleList(owner)

    , m_parentNode(0)

    , m_originalURL(originalURL)

    , m_finalURL(finalURL)

    , m_disabled(false)

{

}

StyleSheet::~StyleSheet()

{

    if (m_media)

        m_media->setParent(0);

}

StyleSheet* StyleSheet::parentStyleSheet() const

{

    return (parent() && parent()->isStyleSheet()) ? static_cast<StyleSheet*>(parent()) : 0;

}

void StyleSheet::setMedia(PassRefPtr<MediaList> media)

{

    if (m_media)

        m_media->setParent(0);

    m_media = media;

    m_media->setParent(this);

}

KURL StyleSheet::completeURL(const String& url) const

{

    // Always return a null URL when passed a null string.

    // FIXME: Should we change the KURL constructor to have this behavior?

    // See also Document::completeURL(const String&)

    if (url.isNull())

        return KURL();

    return KURL(baseURL(), url);

}

}