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      1 /*
      2  * CSS Media Query
      3  *
      4  * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen (at) nokia.com>.
      5  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
     17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     20  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     21  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     23  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     24  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef MediaQuery_h
     30 #define MediaQuery_h
     31 
     32 #include "PlatformString.h"
     33 #include <wtf/PassOwnPtr.h>
     34 #include <wtf/Vector.h>
     35 #include <wtf/text/StringHash.h>
     36 
     37 namespace WebCore {
     38 class MediaQueryExp;
     39 
     40 class MediaQuery {
     41     WTF_MAKE_NONCOPYABLE(MediaQuery); WTF_MAKE_FAST_ALLOCATED;
     42 public:
     43     enum Restrictor {
     44         Only, Not, None
     45     };
     46 
     47     MediaQuery(Restrictor, const String& mediaType, PassOwnPtr<Vector<OwnPtr<MediaQueryExp> > > exprs);
     48     ~MediaQuery();
     49 
     50     Restrictor restrictor() const { return m_restrictor; }
     51     const Vector<OwnPtr<MediaQueryExp> >* expressions() const { return m_expressions.get(); }
     52     String mediaType() const { return m_mediaType; }
     53     bool operator==(const MediaQuery& other) const;
     54     String cssText() const;
     55     bool ignored() const { return m_ignored; }
     56 
     57  private:
     58     Restrictor m_restrictor;
     59     String m_mediaType;
     60     OwnPtr<Vector<OwnPtr<MediaQueryExp> > > m_expressions;
     61     bool m_ignored;
     62     String m_serializationCache;
     63 
     64     String serialize() const;
     65 };
     66 
     67 } // namespace
     68 
     69 #endif
     70