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1 /* | 1 /* |
2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) | 2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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70 return nullAtom; | 70 return nullAtom; |
71 | 71 |
72 return m_document->frame()->view()->mediaType(); | 72 return m_document->frame()->view()->mediaType(); |
73 } | 73 } |
74 | 74 |
75 PassOwnPtr<MediaQueryEvaluator> MediaQueryMatcher::prepareEvaluator() const | 75 PassOwnPtr<MediaQueryEvaluator> MediaQueryMatcher::prepareEvaluator() const |
76 { | 76 { |
77 if (!m_document || !m_document->frame()) | 77 if (!m_document || !m_document->frame()) |
78 return nullptr; | 78 return nullptr; |
79 | 79 |
80 Element* documentElement = m_document->documentElement(); | 80 return adoptPtr(new MediaQueryEvaluator(mediaType(), m_document->frame())); |
81 if (!documentElement) | |
82 return nullptr; | |
83 | |
84 StyleResolver& styleResolver = m_document->ensureStyleResolver(); | |
85 RefPtr<RenderStyle> rootStyle = styleResolver.styleForElement(documentElemen
t, 0 /*defaultParent*/, DisallowStyleSharing, MatchOnlyUserAgentRules); | |
86 | |
87 return adoptPtr(new MediaQueryEvaluator(mediaType(), m_document->frame(), ro
otStyle.get())); | |
88 } | 81 } |
89 | 82 |
90 bool MediaQueryMatcher::evaluate(const MediaQuerySet* media) | 83 bool MediaQueryMatcher::evaluate(const MediaQuerySet* media) |
91 { | 84 { |
92 if (!media) | 85 if (!media) |
93 return false; | 86 return false; |
94 | 87 |
95 OwnPtr<MediaQueryEvaluator> evaluator(prepareEvaluator()); | 88 OwnPtr<MediaQueryEvaluator> evaluator(prepareEvaluator()); |
96 return evaluator && evaluator->eval(media); | 89 return evaluator && evaluator->eval(media); |
97 } | 90 } |
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154 void MediaQueryMatcher::trace(Visitor* visitor) | 147 void MediaQueryMatcher::trace(Visitor* visitor) |
155 { | 148 { |
156 // We don't support tracing of vectors of OwnPtrs (ie. Vector<OwnPtr<Listene
r> >). | 149 // We don't support tracing of vectors of OwnPtrs (ie. Vector<OwnPtr<Listene
r> >). |
157 // Since this is a transitional object we are just ifdef'ing it out when oil
pan is not enabled. | 150 // Since this is a transitional object we are just ifdef'ing it out when oil
pan is not enabled. |
158 #if ENABLE(OILPAN) | 151 #if ENABLE(OILPAN) |
159 visitor->trace(m_listeners); | 152 visitor->trace(m_listeners); |
160 #endif | 153 #endif |
161 } | 154 } |
162 | 155 |
163 } | 156 } |
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