1 /*
2  * CSS Media Query
3  *
4  * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@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     typedef Vector<OwnPtr<MediaQueryExp> > ExpressionVector;
48 
49     MediaQuery(Restrictor, const String& mediaType, PassOwnPtr<ExpressionVector> exprs);
50     ~MediaQuery();
51 
restrictor()52     Restrictor restrictor() const { return m_restrictor; }
expressions()53     const Vector<OwnPtr<MediaQueryExp> >* expressions() const { return m_expressions.get(); }
mediaType()54     String mediaType() const { return m_mediaType; }
55     bool operator==(const MediaQuery& other) const;
56     String cssText() const;
ignored()57     bool ignored() const { return m_ignored; }
58 
59  private:
60     Restrictor m_restrictor;
61     String m_mediaType;
62     OwnPtr<ExpressionVector> m_expressions;
63     bool m_ignored;
64     String m_serializationCache;
65 
66     String serialize() const;
67 };
68 
69 } // namespace
70 
71 #endif
72