/*

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

 *

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

 *               1999 Waldo Bastian (bastian@kde.org)

 *               2001 Andreas Schlapbach (schlpbch@iam.unibe.ch)

 *               2001-2003 Dirk Mueller (mueller@kde.org)

 * Copyright (C) 2002, 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 "StyleBase.h"

#include "Document.h"

#include "Node.h"

#include "StyleSheet.h"

namespace WebCore {

void StyleBase::checkLoaded()

{

    if (parent())

        parent()->checkLoaded();

}

StyleSheet* StyleBase::stylesheet()

{

    StyleBase *b = this;

    while (b && !b->isStyleSheet())

        b = b->parent();

    return static_cast<StyleSheet*>(b);

}

String StyleBase::baseURL()

{

    // try to find the style sheet. If found look for its url.

    // If it has none, look for the parentsheet, or the parentNode and

    // try to find out about their url

    StyleSheet* sheet = stylesheet();

    if (!sheet)

        return String();

    if (!sheet->href().isNull())

        return sheet->href();

    // find parent

    if (sheet->parent()) 

        return sheet->parent()->baseURL();

    if (!sheet->ownerNode()) 

        return String();

    return sheet->ownerNode()->document()->baseURL();

}

}