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 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 <memory>
33#include <wtf/Vector.h>
34#include <wtf/text/StringHash.h>
35#include <wtf/text/WTFString.h>
36
37namespace WebCore {
38class MediaQueryExp;
39
40class MediaQuery {
41    WTF_MAKE_FAST_ALLOCATED;
42public:
43    enum Restrictor {
44        Only, Not, None
45    };
46
47    typedef Vector<std::unique_ptr<MediaQueryExp>> ExpressionVector;
48
49    MediaQuery(Restrictor, const String& mediaType, std::unique_ptr<Vector<std::unique_ptr<MediaQueryExp>>> exprs);
50    MediaQuery(const MediaQuery&);
51    ~MediaQuery();
52
53    Restrictor restrictor() const { return m_restrictor; }
54    const Vector<std::unique_ptr<MediaQueryExp>>& expressions() const { return *m_expressions; }
55    String mediaType() const { return m_mediaType; }
56    bool operator==(const MediaQuery& other) const;
57    String cssText() const;
58    bool ignored() const { return m_ignored; }
59
60    std::unique_ptr<MediaQuery> copy() const { return std::make_unique<MediaQuery>(*this); }
61
62 private:
63    Restrictor m_restrictor;
64    String m_mediaType;
65    std::unique_ptr<ExpressionVector> m_expressions;
66    bool m_ignored;
67    String m_serializationCache;
68
69    String serialize() const;
70};
71
72} // namespace
73
74#endif
75