/*

 * CSS Media Query

 *

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

 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * 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. 

 */

#ifndef MediaQuery_h

#define MediaQuery_h

#include "PlatformString.h"

#include <wtf/PassOwnPtr.h>

#include <wtf/Vector.h>

#include <wtf/text/StringHash.h>

namespace WebCore {

class MediaQueryExp;

class MediaQuery : public Noncopyable {

public:

    enum Restrictor {

        Only, Not, None

    };

    MediaQuery(Restrictor, const String& mediaType, PassOwnPtr<Vector<MediaQueryExp*> > exprs);

    ~MediaQuery();

    Restrictor restrictor() const { return m_restrictor; }

    const Vector<MediaQueryExp*>* expressions() const { return m_expressions.get(); }

    String mediaType() const { return m_mediaType; }

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

    String cssText() const;

    bool ignored() const { return m_ignored; }

 private:

    Restrictor m_restrictor;

    String m_mediaType;

    OwnPtr<Vector<MediaQueryExp*> > m_expressions;

    bool m_ignored;

    String m_serializationCache;

    String serialize() const;

};

} // namespace

#endif