/*

 * CSS Media Query

 *

 * Copyright (C) 2005, 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#include "config.h"

#include "MediaQuery.h"

#include "MediaQueryExp.h"

namespace WebCore {

MediaQuery::MediaQuery(Restrictor r, const String& mediaType, Vector<MediaQueryExp*>* exprs)

    : m_restrictor(r)

    , m_mediaType(mediaType)

    , m_expressions(exprs)

{

    if (!m_expressions)

        m_expressions = new Vector<MediaQueryExp*>;

}

MediaQuery::~MediaQuery()

{

    if (m_expressions) {

        deleteAllValues(*m_expressions);

        delete m_expressions;

    }

}

bool MediaQuery::operator==(const MediaQuery& other) const

{

    if (m_restrictor != other.m_restrictor

        || m_mediaType != other.m_mediaType

        || m_expressions->size() != other.m_expressions->size())

        return false;

    for (size_t i = 0; i < m_expressions->size(); ++i) {

        MediaQueryExp* exp = m_expressions->at(i);

        MediaQueryExp* oexp = other.m_expressions->at(i);

        if (!(*exp == *oexp))

            return false;

    }

    return true;

}

String MediaQuery::cssText() const

{

    String text;

    switch (m_restrictor) {

        case MediaQuery::Only:

            text += "only ";

            break;

        case MediaQuery::Not:

            text += "not ";

            break;

        case MediaQuery::None:

        default:

            break;

    }

    text += m_mediaType;

    for (size_t i = 0; i < m_expressions->size(); ++i) {

        MediaQueryExp* exp = m_expressions->at(i);

        text += " and (";

        text += exp->mediaFeature();

        if (exp->value()) {

            text += ": ";

            text += exp->value()->cssText();

        }

        text += ")";

    }

    return text;

}

} //namespace