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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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25 #include "core/css/MediaQueryListEvent.h" | 25 #include "core/css/MediaQueryListEvent.h" |
26 #include "core/css/MediaQueryListListener.h" | 26 #include "core/css/MediaQueryListListener.h" |
27 #include "core/css/resolver/StyleResolver.h" | 27 #include "core/css/resolver/StyleResolver.h" |
28 #include "core/dom/Document.h" | 28 #include "core/dom/Document.h" |
29 #include "core/frame/FrameView.h" | 29 #include "core/frame/FrameView.h" |
30 #include "core/frame/LocalFrame.h" | 30 #include "core/frame/LocalFrame.h" |
31 #include "wtf/Vector.h" | 31 #include "wtf/Vector.h" |
32 | 32 |
33 namespace blink { | 33 namespace blink { |
34 | 34 |
35 RawPtr<MediaQueryMatcher> MediaQueryMatcher::create(Document& document) | 35 MediaQueryMatcher* MediaQueryMatcher::create(Document& document) |
36 { | 36 { |
37 return new MediaQueryMatcher(document); | 37 return new MediaQueryMatcher(document); |
38 } | 38 } |
39 | 39 |
40 MediaQueryMatcher::MediaQueryMatcher(Document& document) | 40 MediaQueryMatcher::MediaQueryMatcher(Document& document) |
41 : m_document(&document) | 41 : m_document(&document) |
42 { | 42 { |
43 ASSERT(m_document); | 43 ASSERT(m_document); |
44 } | 44 } |
45 | 45 |
46 MediaQueryMatcher::~MediaQueryMatcher() | 46 MediaQueryMatcher::~MediaQueryMatcher() |
47 { | 47 { |
48 } | 48 } |
49 | 49 |
50 void MediaQueryMatcher::documentDetached() | 50 void MediaQueryMatcher::documentDetached() |
51 { | 51 { |
52 m_document = nullptr; | 52 m_document = nullptr; |
53 m_evaluator = nullptr; | 53 m_evaluator = nullptr; |
54 } | 54 } |
55 | 55 |
56 RawPtr<MediaQueryEvaluator> MediaQueryMatcher::createEvaluator() const | 56 MediaQueryEvaluator* MediaQueryMatcher::createEvaluator() const |
57 { | 57 { |
58 if (!m_document || !m_document->frame()) | 58 if (!m_document || !m_document->frame()) |
59 return nullptr; | 59 return nullptr; |
60 | 60 |
61 return new MediaQueryEvaluator(m_document->frame()); | 61 return new MediaQueryEvaluator(m_document->frame()); |
62 } | 62 } |
63 | 63 |
64 bool MediaQueryMatcher::evaluate(const MediaQuerySet* media) | 64 bool MediaQueryMatcher::evaluate(const MediaQuerySet* media) |
65 { | 65 { |
66 ASSERT(!m_document || m_document->frame() || !m_evaluator); | 66 ASSERT(!m_document || m_document->frame() || !m_evaluator); |
67 | 67 |
68 if (!media) | 68 if (!media) |
69 return false; | 69 return false; |
70 | 70 |
71 // Cache the evaluator to avoid allocating one per evaluation. | 71 // Cache the evaluator to avoid allocating one per evaluation. |
72 if (!m_evaluator) | 72 if (!m_evaluator) |
73 m_evaluator = createEvaluator(); | 73 m_evaluator = createEvaluator(); |
74 | 74 |
75 if (m_evaluator) | 75 if (m_evaluator) |
76 return m_evaluator->eval(media); | 76 return m_evaluator->eval(media); |
77 | 77 |
78 return false; | 78 return false; |
79 } | 79 } |
80 | 80 |
81 RawPtr<MediaQueryList> MediaQueryMatcher::matchMedia(const String& query) | 81 MediaQueryList* MediaQueryMatcher::matchMedia(const String& query) |
82 { | 82 { |
83 if (!m_document) | 83 if (!m_document) |
84 return nullptr; | 84 return nullptr; |
85 | 85 |
86 RawPtr<MediaQuerySet> media = MediaQuerySet::create(query); | 86 MediaQuerySet* media = MediaQuerySet::create(query); |
87 return MediaQueryList::create(m_document, this, media); | 87 return MediaQueryList::create(m_document, this, media); |
88 } | 88 } |
89 | 89 |
90 void MediaQueryMatcher::addMediaQueryList(MediaQueryList* query) | 90 void MediaQueryMatcher::addMediaQueryList(MediaQueryList* query) |
91 { | 91 { |
92 if (!m_document) | 92 if (!m_document) |
93 return; | 93 return; |
94 m_mediaLists.add(query); | 94 m_mediaLists.add(query); |
95 } | 95 } |
96 | 96 |
97 void MediaQueryMatcher::removeMediaQueryList(MediaQueryList* query) | 97 void MediaQueryMatcher::removeMediaQueryList(MediaQueryList* query) |
98 { | 98 { |
99 if (!m_document) | 99 if (!m_document) |
100 return; | 100 return; |
101 m_mediaLists.remove(query); | 101 m_mediaLists.remove(query); |
102 } | 102 } |
103 | 103 |
104 void MediaQueryMatcher::addViewportListener(RawPtr<MediaQueryListListener> liste
ner) | 104 void MediaQueryMatcher::addViewportListener(MediaQueryListListener* listener) |
105 { | 105 { |
106 if (!m_document) | 106 if (!m_document) |
107 return; | 107 return; |
108 m_viewportListeners.add(listener); | 108 m_viewportListeners.add(listener); |
109 } | 109 } |
110 | 110 |
111 void MediaQueryMatcher::removeViewportListener(RawPtr<MediaQueryListListener> li
stener) | 111 void MediaQueryMatcher::removeViewportListener(MediaQueryListListener* listener) |
112 { | 112 { |
113 if (!m_document) | 113 if (!m_document) |
114 return; | 114 return; |
115 m_viewportListeners.remove(listener); | 115 m_viewportListeners.remove(listener); |
116 } | 116 } |
117 | 117 |
118 void MediaQueryMatcher::mediaFeaturesChanged() | 118 void MediaQueryMatcher::mediaFeaturesChanged() |
119 { | 119 { |
120 if (!m_document) | 120 if (!m_document) |
121 return; | 121 return; |
122 | 122 |
123 HeapVector<Member<MediaQueryListListener>> listenersToNotify; | 123 HeapVector<Member<MediaQueryListListener>> listenersToNotify; |
124 for (const auto& list : m_mediaLists) { | 124 for (const auto& list : m_mediaLists) { |
125 if (list->mediaFeaturesChanged(&listenersToNotify)) { | 125 if (list->mediaFeaturesChanged(&listenersToNotify)) { |
126 RawPtr<Event> event(MediaQueryListEvent::create(list)); | 126 Event* event = MediaQueryListEvent::create(list); |
127 event->setTarget(list); | 127 event->setTarget(list); |
128 m_document->enqueueUniqueAnimationFrameEvent(event); | 128 m_document->enqueueUniqueAnimationFrameEvent(event); |
129 } | 129 } |
130 } | 130 } |
131 m_document->enqueueMediaQueryChangeListeners(listenersToNotify); | 131 m_document->enqueueMediaQueryChangeListeners(listenersToNotify); |
132 } | 132 } |
133 | 133 |
134 void MediaQueryMatcher::viewportChanged() | 134 void MediaQueryMatcher::viewportChanged() |
135 { | 135 { |
136 if (!m_document) | 136 if (!m_document) |
137 return; | 137 return; |
138 | 138 |
139 HeapVector<Member<MediaQueryListListener>> listenersToNotify; | 139 HeapVector<Member<MediaQueryListListener>> listenersToNotify; |
140 for (const auto& listener : m_viewportListeners) | 140 for (const auto& listener : m_viewportListeners) |
141 listenersToNotify.append(listener); | 141 listenersToNotify.append(listener); |
142 | 142 |
143 m_document->enqueueMediaQueryChangeListeners(listenersToNotify); | 143 m_document->enqueueMediaQueryChangeListeners(listenersToNotify); |
144 } | 144 } |
145 | 145 |
146 DEFINE_TRACE(MediaQueryMatcher) | 146 DEFINE_TRACE(MediaQueryMatcher) |
147 { | 147 { |
148 visitor->trace(m_document); | 148 visitor->trace(m_document); |
149 visitor->trace(m_evaluator); | 149 visitor->trace(m_evaluator); |
150 visitor->trace(m_mediaLists); | 150 visitor->trace(m_mediaLists); |
151 visitor->trace(m_viewportListeners); | 151 visitor->trace(m_viewportListeners); |
152 } | 152 } |
153 | 153 |
154 } // namespace blink | 154 } // namespace blink |
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