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
159
160
161
162
163
|
/*
* 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.
*/
#ifndef MediaController_h
#define MediaController_h
#if ENABLE(VIDEO)
#include "Event.h"
#include "EventTarget.h"
#include "MediaControllerInterface.h"
#include "Timer.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class Clock;
class HTMLMediaElement;
class Event;
class ScriptExecutionContext;
class MediaController final : public RefCounted<MediaController>, public MediaControllerInterface, public EventTargetWithInlineData {
public:
static Ref<MediaController> create(ScriptExecutionContext&);
virtual ~MediaController();
void addMediaElement(HTMLMediaElement*);
void removeMediaElement(HTMLMediaElement*);
bool containsMediaElement(HTMLMediaElement*) const;
const String& mediaGroup() const { return m_mediaGroup; }
virtual PassRefPtr<TimeRanges> buffered() const override;
virtual PassRefPtr<TimeRanges> seekable() const override;
virtual PassRefPtr<TimeRanges> played() override;
virtual double duration() const override;
virtual double currentTime() const override;
virtual void setCurrentTime(double) override;
virtual bool paused() const override { return m_paused; }
virtual void play() override;
virtual void pause() override;
void unpause();
virtual double defaultPlaybackRate() const override { return m_defaultPlaybackRate; }
virtual void setDefaultPlaybackRate(double) override;
virtual double playbackRate() const override;
virtual void setPlaybackRate(double) override;
virtual double volume() const override { return m_volume; }
virtual void setVolume(double, ExceptionCode&) override;
virtual bool muted() const override { return m_muted; }
virtual void setMuted(bool) override;
virtual ReadyState readyState() const override { return m_readyState; }
enum PlaybackState { WAITING, PLAYING, ENDED };
const AtomicString& playbackState() const;
virtual bool supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenMode) const override { return false; }
virtual bool isFullscreen() const override { return false; }
virtual void enterFullscreen() override { }
virtual bool hasAudio() const override;
virtual bool hasVideo() const override;
virtual bool hasClosedCaptions() const override;
virtual void setClosedCaptionsVisible(bool) override;
virtual bool closedCaptionsVisible() const override { return m_closedCaptionsVisible; }
virtual bool supportsScanning() const override;
virtual void beginScrubbing() override;
virtual void endScrubbing() override;
virtual void beginScanning(ScanDirection) override;
virtual void endScanning() override;
virtual bool canPlay() const override;
virtual bool isLiveStream() const override;
virtual bool hasCurrentSrc() const override;
virtual void returnToRealtime() override;
bool isBlocked() const;
// EventTarget
using RefCounted<MediaController>::ref;
using RefCounted<MediaController>::deref;
private:
explicit MediaController(ScriptExecutionContext&);
void reportControllerState();
void updateReadyState();
void updatePlaybackState();
void updateMediaElements();
void bringElementUpToSpeed(HTMLMediaElement*);
void scheduleEvent(const AtomicString& eventName);
void asyncEventTimerFired();
void clearPositionTimerFired();
bool hasEnded() const;
void scheduleTimeupdateEvent();
void startTimeupdateTimer();
// EventTarget
virtual void refEventTarget() override { ref(); }
virtual void derefEventTarget() override { deref(); }
virtual EventTargetInterface eventTargetInterface() const override { return MediaControllerEventTargetInterfaceType; }
virtual ScriptExecutionContext* scriptExecutionContext() const override { return &m_scriptExecutionContext; };
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;
String m_mediaGroup;
bool m_closedCaptionsVisible;
std::unique_ptr<Clock> m_clock;
ScriptExecutionContext& m_scriptExecutionContext;
Timer m_timeupdateTimer;
double m_previousTimeupdateTime;
bool m_resetCurrentTimeInNextPlay { false };
};
} // namespace WebCore
#endif
#endif
|
