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
|
/*
* Copyright (C) 2021 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. AND ITS CONTRIBUTORS ``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 ITS 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(MEDIA_SESSION_COORDINATOR)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "MediaSession.h"
#include "MediaSessionCoordinatorPrivate.h"
#include "MediaSessionCoordinatorState.h"
#include <wtf/Logger.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
template<typename> class DOMPromiseDeferred;
class MediaSessionCoordinator
: public RefCounted<MediaSessionCoordinator>
, public MediaSessionCoordinatorClient
, public MediaSessionObserver
, public ActiveDOMObject
, public EventTarget {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(MediaSessionCoordinator, WEBCORE_EXPORT);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
WEBCORE_EXPORT static Ref<MediaSessionCoordinator> create(ScriptExecutionContext*);
WEBCORE_EXPORT ~MediaSessionCoordinator();
WEBCORE_EXPORT void setMediaSessionCoordinatorPrivate(Ref<MediaSessionCoordinatorPrivate>&&);
void join(DOMPromiseDeferred<void>&&);
ExceptionOr<void> leave();
void close();
String identifier() const { return m_privateCoordinator ? m_privateCoordinator->identifier() : String(); }
MediaSessionCoordinatorState state() const { return m_state; }
void seekTo(double, DOMPromiseDeferred<void>&&);
void play(DOMPromiseDeferred<void>&&);
void pause(DOMPromiseDeferred<void>&&);
void setTrack(const String&, DOMPromiseDeferred<void>&&);
void setMediaSession(MediaSession*);
USING_CAN_MAKE_WEAKPTR(MediaSessionCoordinatorClient);
struct PlaySessionCommand {
std::optional<double> atTime;
std::optional<MonotonicTime> hostTime;
};
std::optional<PlaySessionCommand> takeCurrentPlaySessionCommand() { return WTFMove(m_currentPlaySessionCommand); }
private:
MediaSessionCoordinator(ScriptExecutionContext*);
// EventTarget
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::MediaSessionCoordinator; }
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
void eventListenersDidChange() final;
// ActiveDOMObject.
bool virtualHasPendingActivity() const final;
// MediaSessionObserver
void metadataChanged(const RefPtr<MediaMetadata>&) final;
void positionStateChanged(const std::optional<MediaPositionState>&) final;
void playbackStateChanged(MediaSessionPlaybackState) final;
void readyStateChanged(MediaSessionReadyState) final;
// MediaSessionCoordinatorClient
void seekSessionToTime(double, CompletionHandler<void(bool)>&&) final;
void playSession(std::optional<double> atTime, std::optional<MonotonicTime> hostTime, CompletionHandler<void(bool)>&&) final;
void pauseSession(CompletionHandler<void(bool)>&&) final;
void setSessionTrack(const String&, CompletionHandler<void(bool)>&&) final;
void coordinatorStateChanged(WebCore::MediaSessionCoordinatorState) final;
bool currentPositionApproximatelyEqualTo(double) const;
const Logger& logger() const { return m_logger; }
uint64_t logIdentifier() const { return m_logIdentifier; }
static WTFLogChannel& logChannel();
static ASCIILiteral logClassName() { return "MediaSessionCoordinator"_s; }
bool shouldFireEvents() const;
WeakPtr<MediaSession> m_session;
RefPtr<MediaSessionCoordinatorPrivate> m_privateCoordinator;
const Ref<const Logger> m_logger;
const uint64_t m_logIdentifier;
MediaSessionCoordinatorState m_state { MediaSessionCoordinatorState::Closed };
bool m_hasCoordinatorsStateChangeEventListener { false };
std::optional<PlaySessionCommand> m_currentPlaySessionCommand;
};
}
#endif // ENABLE(MEDIA_SESSION_COORDINATOR)
|
