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5efab546 C |
1 | import './embed.scss' |
2 | ||
3 | import * as Channel from 'jschannel' | |
4 | import { PeerTubeResolution } from '../player/definitions' | |
5 | import { PeerTubeEmbed } from './embed' | |
6 | ||
7 | /** | |
8 | * Embed API exposes control of the embed player to the outside world via | |
9 | * JSChannels and window.postMessage | |
10 | */ | |
11 | export class PeerTubeEmbedApi { | |
12 | private channel: Channel.MessagingChannel | |
13 | private isReady = false | |
6377a9f2 | 14 | private resolutions: PeerTubeResolution[] = [] |
5efab546 C |
15 | |
16 | constructor (private embed: PeerTubeEmbed) { | |
17 | } | |
18 | ||
19 | initialize () { | |
20 | this.constructChannel() | |
21 | this.setupStateTracking() | |
22 | ||
23 | // We're ready! | |
24 | ||
25 | this.notifyReady() | |
26 | } | |
27 | ||
28 | private get element () { | |
29 | return this.embed.videoElement | |
30 | } | |
31 | ||
32 | private constructChannel () { | |
33 | const channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope }) | |
34 | ||
35 | channel.bind('play', (txn, params) => this.embed.player.play()) | |
36 | channel.bind('pause', (txn, params) => this.embed.player.pause()) | |
37 | channel.bind('seek', (txn, time) => this.embed.player.currentTime(time)) | |
6377a9f2 | 38 | |
5efab546 C |
39 | channel.bind('setVolume', (txn, value) => this.embed.player.volume(value)) |
40 | channel.bind('getVolume', (txn, value) => this.embed.player.volume()) | |
6377a9f2 | 41 | |
5efab546 | 42 | channel.bind('isReady', (txn, params) => this.isReady) |
6377a9f2 | 43 | |
5efab546 C |
44 | channel.bind('setResolution', (txn, resolutionId) => this.setResolution(resolutionId)) |
45 | channel.bind('getResolutions', (txn, params) => this.resolutions) | |
6377a9f2 | 46 | |
5efab546 C |
47 | channel.bind('setPlaybackRate', (txn, playbackRate) => this.embed.player.playbackRate(playbackRate)) |
48 | channel.bind('getPlaybackRate', (txn, params) => this.embed.player.playbackRate()) | |
6377a9f2 | 49 | channel.bind('getPlaybackRates', (txn, params) => this.embed.player.options_.playbackRates) |
5efab546 C |
50 | this.channel = channel |
51 | } | |
52 | ||
53 | private setResolution (resolutionId: number) { | |
6377a9f2 C |
54 | console.log('set resolution %d', resolutionId) |
55 | ||
56 | if (this.isWebtorrent()) { | |
57 | if (resolutionId === -1 && this.embed.player.webtorrent().isAutoResolutionPossible() === false) return | |
58 | ||
59 | // Auto resolution | |
60 | if (resolutionId === -1) { | |
61 | this.embed.player.webtorrent().enableAutoResolution() | |
62 | return | |
63 | } | |
64 | ||
65 | this.embed.player.webtorrent().disableAutoResolution() | |
66 | this.embed.player.webtorrent().updateResolution(resolutionId) | |
5efab546 | 67 | |
5efab546 C |
68 | return |
69 | } | |
70 | ||
6377a9f2 | 71 | this.embed.player.p2pMediaLoader().getHLSJS().nextLevel = resolutionId |
5efab546 C |
72 | } |
73 | ||
74 | /** | |
75 | * Let the host know that we're ready to go! | |
76 | */ | |
77 | private notifyReady () { | |
78 | this.isReady = true | |
79 | this.channel.notify({ method: 'ready', params: true }) | |
80 | } | |
81 | ||
82 | private setupStateTracking () { | |
83 | let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted' | |
84 | ||
85 | setInterval(() => { | |
86 | const position = this.element.currentTime | |
87 | const volume = this.element.volume | |
88 | ||
89 | this.channel.notify({ | |
90 | method: 'playbackStatusUpdate', | |
91 | params: { | |
92 | position, | |
93 | volume, | |
94 | playbackState: currentState | |
95 | } | |
96 | }) | |
97 | }, 500) | |
98 | ||
99 | this.element.addEventListener('play', ev => { | |
100 | currentState = 'playing' | |
101 | this.channel.notify({ method: 'playbackStatusChange', params: 'playing' }) | |
102 | }) | |
103 | ||
104 | this.element.addEventListener('pause', ev => { | |
105 | currentState = 'paused' | |
106 | this.channel.notify({ method: 'playbackStatusChange', params: 'paused' }) | |
107 | }) | |
108 | ||
109 | // PeerTube specific capabilities | |
110 | ||
6377a9f2 | 111 | if (this.isWebtorrent()) { |
5efab546 C |
112 | this.embed.player.webtorrent().on('autoResolutionUpdate', () => this.loadWebTorrentResolutions()) |
113 | this.embed.player.webtorrent().on('videoFileUpdate', () => this.loadWebTorrentResolutions()) | |
6377a9f2 C |
114 | } else { |
115 | this.embed.player.p2pMediaLoader().on('resolutionChange', () => this.loadP2PMediaLoaderResolutions()) | |
5efab546 | 116 | } |
6377a9f2 C |
117 | |
118 | this.embed.player.on('volumechange', () => { | |
119 | this.channel.notify({ | |
120 | method: 'volumeChange', | |
121 | params: this.embed.player.volume() | |
122 | }) | |
123 | }) | |
5efab546 C |
124 | } |
125 | ||
126 | private loadWebTorrentResolutions () { | |
6377a9f2 C |
127 | this.resolutions = [] |
128 | ||
5efab546 C |
129 | const currentResolutionId = this.embed.player.webtorrent().getCurrentResolutionId() |
130 | ||
131 | for (const videoFile of this.embed.player.webtorrent().videoFiles) { | |
132 | let label = videoFile.resolution.label | |
133 | if (videoFile.fps && videoFile.fps >= 50) { | |
134 | label += videoFile.fps | |
135 | } | |
136 | ||
6377a9f2 | 137 | this.resolutions.push({ |
5efab546 C |
138 | id: videoFile.resolution.id, |
139 | label, | |
140 | src: videoFile.magnetUri, | |
6377a9f2 C |
141 | active: videoFile.resolution.id === currentResolutionId, |
142 | height: videoFile.resolution.id | |
5efab546 C |
143 | }) |
144 | } | |
145 | ||
5efab546 C |
146 | this.channel.notify({ |
147 | method: 'resolutionUpdate', | |
148 | params: this.resolutions | |
149 | }) | |
150 | } | |
6377a9f2 C |
151 | |
152 | private loadP2PMediaLoaderResolutions () { | |
153 | this.resolutions = [] | |
154 | ||
155 | const qualityLevels = this.embed.player.qualityLevels() | |
156 | const currentResolutionId = this.embed.player.qualityLevels().selectedIndex | |
157 | ||
158 | for (let i = 0; i < qualityLevels.length; i++) { | |
159 | const level = qualityLevels[i] | |
160 | ||
161 | this.resolutions.push({ | |
162 | id: level.id, | |
163 | label: level.height + 'p', | |
164 | active: level.id === currentResolutionId, | |
165 | width: level.width, | |
166 | height: level.height | |
167 | }) | |
168 | } | |
169 | ||
170 | this.channel.notify({ | |
171 | method: 'resolutionUpdate', | |
172 | params: this.resolutions | |
173 | }) | |
174 | } | |
175 | ||
176 | private isWebtorrent () { | |
177 | return this.embed.player.webtorrent | |
178 | } | |
5efab546 | 179 | } |