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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef TrackListBase_h | |
6 #define TrackListBase_h | |
7 | |
8 #include "core/events/EventTarget.h" | |
9 | |
10 #include "core/html/HTMLMediaElement.h" | |
11 #include "core/html/track/TrackEvent.h" | |
12 | |
13 namespace WebCore { | |
14 | |
15 template<class T> | |
16 class TrackListBase : public RefCountedWillBeRefCountedGarbageCollected<TrackLis tBase<T> >, public EventTargetWithInlineData { | |
17 DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<T rackListBase<T> >); | |
haraken
2014/06/03 05:48:29
You can use REFCOUNTED_EVENT_TARGET(TrackListBase)
philipj_slow
2014/06/11 10:03:48
Done.
| |
18 | |
19 public: | |
20 explicit TrackListBase(HTMLMediaElement* mediaElement) | |
21 : m_mediaElement(mediaElement) | |
22 { | |
23 } | |
24 | |
25 virtual ~TrackListBase() | |
26 { | |
27 ASSERT(m_tracks.isEmpty()); | |
haraken
2014/06/03 05:48:29
I don't think this holds in oilpan builds, because
philipj_slow
2014/06/11 10:03:48
Done.
| |
28 ASSERT(!m_mediaElement); | |
haraken
2014/06/03 05:48:29
Ditto. This won't hold in oilpan builds, because y
| |
29 } | |
30 | |
31 unsigned length() const { return m_tracks.size(); } | |
32 T* anonymousIndexedGetter(unsigned index) const | |
33 { | |
34 if (index >= m_tracks.size()) | |
35 return 0; | |
36 return m_tracks[index].get(); | |
37 } | |
38 | |
39 T* getTrackById(const String& id) const | |
40 { | |
41 for (unsigned i = 0; i < m_tracks.size(); ++i) { | |
42 if (m_tracks[i]->id() == id) | |
43 return m_tracks[i].get(); | |
44 } | |
45 | |
46 return 0; | |
47 } | |
48 | |
49 DEFINE_ATTRIBUTE_EVENT_LISTENER(change); | |
50 DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack); | |
51 DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack); | |
52 | |
53 // EventTarget interface | |
54 virtual ExecutionContext* executionContext() const OVERRIDE | |
55 { | |
56 if (m_mediaElement) | |
57 return m_mediaElement->executionContext(); | |
58 return 0; | |
59 } | |
60 | |
61 #if !ENABLE(OILPAN) | |
62 void shutdown() | |
63 { | |
64 removeAll(); | |
acolwell GONE FROM CHROMIUM
2014/06/02 20:28:14
I believe you should be able to assert m_tracks.is
philipj_slow
2014/06/11 12:48:15
shutdown() is called from ~HTMLMediaElement() and
| |
65 m_mediaElement = nullptr; | |
66 } | |
67 #endif | |
68 | |
69 void add(PassRefPtrWillBeRawPtr<T> prpTrack) | |
70 { | |
71 RefPtrWillBeRawPtr<T> track = prpTrack; | |
72 | |
73 track->setMediaElement(m_mediaElement); | |
74 m_tracks.append(track); | |
75 scheduleTrackEvent(EventTypeNames::addtrack, track.release()); | |
76 } | |
77 | |
78 void remove(blink::WebMediaPlayer::TrackId trackId) | |
79 { | |
80 for (unsigned i = 0; i < m_tracks.size(); ++i) { | |
81 if (m_tracks[i]->trackId() != trackId) | |
82 continue; | |
83 | |
84 m_tracks[i]->setMediaElement(0); | |
85 scheduleTrackEvent(EventTypeNames::removetrack, m_tracks[i]); | |
86 m_tracks.remove(i); | |
87 return; | |
88 } | |
89 } | |
90 | |
91 void removeAll() | |
92 { | |
93 for (unsigned i = 0; i < m_tracks.size(); ++i) | |
94 m_tracks[i]->setMediaElement(0); | |
95 | |
96 m_tracks.clear(); | |
97 } | |
98 | |
99 void scheduleChangeEvent() | |
100 { | |
101 EventInit initializer; | |
102 initializer.bubbles = false; | |
103 initializer.cancelable = false; | |
104 RefPtrWillBeRawPtr<Event> event = Event::create(EventTypeNames::change, initializer); | |
105 event->setTarget(this); | |
106 m_mediaElement->scheduleEvent(event); | |
107 } | |
108 | |
109 void trace(Visitor* visitor) | |
110 { | |
111 visitor->trace(m_tracks); | |
112 visitor->trace(m_mediaElement); | |
113 } | |
114 | |
115 private: | |
116 void scheduleTrackEvent(const AtomicString& eventName, PassRefPtrWillBeRawPt r<T> track) | |
117 { | |
118 TrackEventInit initializer; | |
119 initializer.track = track; | |
120 initializer.bubbles = false; | |
121 initializer.cancelable = false; | |
122 RefPtrWillBeRawPtr<Event> event = TrackEvent::create(eventName, initiali zer); | |
123 event->setTarget(this); | |
124 m_mediaElement->scheduleEvent(event); | |
125 } | |
126 | |
127 WillBeHeapVector<RefPtrWillBeMember<T> > m_tracks; | |
128 RawPtrWillBeMember<HTMLMediaElement> m_mediaElement; | |
129 }; | |
130 | |
131 } | |
132 | |
133 #endif | |
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