1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(VIDEO)
#include "ContextDestructionObserver.h"
#include "Event.h"
#include "EventTarget.h"
#include "MediaControllerInterface.h"
#include "Timer.h"
#include <wtf/Vector.h>
namespace PAL {
class Clock;
}
namespace WebCore {
class HTMLMediaElement;
class MediaController final
: public RefCounted<MediaController>
, public MediaControllerInterface
, public ContextDestructionObserver
, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(MediaController);
public:
static Ref<MediaController> create(ScriptExecutionContext&);
virtual ~MediaController();
Ref<TimeRanges> buffered() const final;
Ref<TimeRanges> seekable() const final;
Ref<TimeRanges> played() final;
double duration() const final;
double currentTime() const final;
void setCurrentTime(double) final;
bool paused() const final { return m_paused; }
void play() final;
void pause() final;
void unpause();
double defaultPlaybackRate() const final { return m_defaultPlaybackRate; }
void setDefaultPlaybackRate(double) final;
double playbackRate() const final;
void setPlaybackRate(double) final;
double volume() const final { return m_volume; }
ExceptionOr<void> setVolume(double) final;
bool muted() const final { return m_muted; }
void setMuted(bool) final;
const AtomString& playbackState() const;
using RefCounted::ref;
using RefCounted::deref;
private:
explicit MediaController(ScriptExecutionContext&);
void reportControllerState();
void updateReadyState();
void updatePlaybackState();
void updateMediaElements();
void bringElementUpToSpeed(HTMLMediaElement&);
void scheduleEvent(const AtomString& eventName);
void asyncEventTimerFired();
void clearPositionTimerFired();
bool hasEnded() const;
void scheduleTimeupdateEvent();
void startTimeupdateTimer();
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::MediaController; }
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); };
void addMediaElement(HTMLMediaElement&);
void removeMediaElement(HTMLMediaElement&);
bool supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenMode) const final { return false; }
bool isFullscreen() const final { return false; }
void enterFullscreen() final { }
bool hasAudio() const final;
bool hasVideo() const final;
bool hasClosedCaptions() const final;
void setClosedCaptionsVisible(bool) final;
bool closedCaptionsVisible() const final { return m_closedCaptionsVisible; }
bool supportsScanning() const final;
void beginScrubbing() final;
void endScrubbing() final;
void beginScanning(ScanDirection) final;
void endScanning() final;
bool canPlay() const final;
bool isLiveStream() const final;
bool hasCurrentSrc() const final;
bool isBlocked() const;
void returnToRealtime() final;
ReadyState readyState() const final { return m_readyState; }
enum PlaybackState { WAITING, PLAYING, ENDED };
friend class HTMLMediaElement;
friend class MediaControllerEventListener;
Vector<HTMLMediaElement*> m_mediaElements;
bool m_paused;
double m_defaultPlaybackRate;
double m_volume;
mutable double m_position;
bool m_muted;
ReadyState m_readyState;
PlaybackState m_playbackState;
Vector<Ref<Event>> m_pendingEvents;
Timer m_asyncEventTimer;
mutable Timer m_clearPositionTimer;
bool m_closedCaptionsVisible;
std::unique_ptr<PAL::Clock> m_clock;
Timer m_timeupdateTimer;
MonotonicTime m_previousTimeupdateTime;
bool m_resetCurrentTimeInNextPlay { false };
};
} // namespace WebCore
#endif
|
