/**

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

 *

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

 * (C) 2002-2003 Dirk Mueller (mueller@kde.org)

 * Copyright (C) 2002, 2005, 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 "CSSRuleList.h"

#include "CSSRule.h"

#include "StyleList.h"

namespace WebCore {

CSSRuleList::CSSRuleList()

{

}

CSSRuleList::CSSRuleList(StyleList* list, bool omitCharsetRules)

{

    if (list) {

        unsigned len = list->length();

        for (unsigned i = 0; i < len; ++i) {

            StyleBase* style = list->item(i);

            if (style->isRule() && !(omitCharsetRules && style->isCharsetRule()))

                append(static_cast<CSSRule*>(style));

        }

    }

}

CSSRuleList::~CSSRuleList()

{

    CSSRule* rule;

    while (!m_lstCSSRules.isEmpty() && (rule = m_lstCSSRules.take(0)))

        rule->deref();

}

void CSSRuleList::deleteRule(unsigned index)

{

    CSSRule* rule = m_lstCSSRules.take(index);

    if (rule)

        rule->deref();

    else

        ; // FIXME: Throw INDEX_SIZE_ERR exception here

}

void CSSRuleList::append(CSSRule* rule)

{

    insertRule(rule, m_lstCSSRules.count()) ;

}

unsigned CSSRuleList::insertRule(CSSRule* rule, unsigned index)

{

    if (rule && m_lstCSSRules.insert(index, rule)) {

        rule->ref();

        return index;

    }

    // FIXME: Should throw INDEX_SIZE_ERR exception instead!

    return 0;

}

} // namespace WebCore