| 1 | /*
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| 2 | * Copyright (C) 2006 Kimmo Kinnunen <[email protected]>.
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| 3 | * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | * Copyright (C) 2015 Apple Inc. All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | *
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| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
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| 16 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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| 19 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 22 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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| 23 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 26 | */
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| 27 |
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| 28 | #pragma once
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| 29 |
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| 30 | #include "CSSParserTokenRange.h"
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| 31 | #include "CSSValue.h"
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| 32 | #include <memory>
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| 33 |
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| 34 | namespace WTF {
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| 35 | class TextStream;
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| 36 | }
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| 37 |
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| 38 | namespace WebCore {
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| 39 |
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| 40 | struct MediaQueryParserContext;
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| 41 |
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| 42 | class MediaQueryExpression {
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| 43 | WTF_MAKE_FAST_ALLOCATED;
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| 44 | public:
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| 45 | explicit MediaQueryExpression(const String& mediaFeature, CSSParserTokenRange&, MediaQueryParserContext&);
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| 46 |
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| 47 | const AtomString& mediaFeature() const;
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| 48 | CSSValue* value() const;
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| 49 |
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| 50 | bool isValid() const;
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| 51 |
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| 52 | String serialize() const;
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| 53 |
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| 54 | bool operator==(const MediaQueryExpression&) const;
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| 55 |
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| 56 | private:
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| 57 | AtomString m_mediaFeature;
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| 58 | RefPtr<CSSValue> m_value;
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| 59 | bool m_isValid { false };
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| 60 | mutable String m_serializationCache;
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| 61 | };
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| 62 |
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| 63 | inline const AtomString& MediaQueryExpression::mediaFeature() const
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| 64 | {
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| 65 | return m_mediaFeature;
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| 66 | }
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| 67 |
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| 68 | inline CSSValue* MediaQueryExpression::value() const
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| 69 | {
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| 70 | return m_value.get();
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| 71 | }
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| 72 |
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| 73 | inline bool MediaQueryExpression::operator==(const MediaQueryExpression& other) const
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| 74 | {
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| 75 | return other.m_mediaFeature == m_mediaFeature
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| 76 | && ((!m_value && !other.m_value) || (m_value && other.m_value && *m_value == *other.m_value));
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| 77 | }
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| 78 |
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| 79 | inline bool MediaQueryExpression::isValid() const
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| 80 | {
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| 81 | return m_isValid;
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| 82 | }
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| 83 |
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| 84 | WTF::TextStream& operator<<(WTF::TextStream&, const MediaQueryExpression&);
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| 85 |
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| 86 | } // namespace
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