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1 | import './embed.scss' | |
2 | ||
3 | import 'core-js/es6/symbol' | |
4 | import 'core-js/es6/object' | |
5 | import 'core-js/es6/function' | |
6 | import 'core-js/es6/parse-int' | |
7 | import 'core-js/es6/parse-float' | |
8 | import 'core-js/es6/number' | |
9 | import 'core-js/es6/math' | |
10 | import 'core-js/es6/string' | |
11 | import 'core-js/es6/date' | |
12 | import 'core-js/es6/array' | |
13 | import 'core-js/es6/regexp' | |
14 | import 'core-js/es6/map' | |
15 | import 'core-js/es6/weak-map' | |
16 | import 'core-js/es6/set' | |
17 | // For google bot that uses Chrome 41 and does not understand fetch | |
18 | import 'whatwg-fetch' | |
19 | ||
20 | import * as vjs from 'video.js' | |
21 | import * as Channel from 'jschannel' | |
22 | ||
23 | import { VideoDetails } from '../../../../shared' | |
24 | import { addContextMenu, getVideojsOptions, loadLocale } from '../../assets/player/peertube-player' | |
25 | import { PeerTubeResolution } from '../player/definitions' | |
26 | ||
27 | /** | |
28 | * Embed API exposes control of the embed player to the outside world via | |
29 | * JSChannels and window.postMessage | |
30 | */ | |
31 | class PeerTubeEmbedApi { | |
32 | private channel: Channel.MessagingChannel | |
33 | private isReady = false | |
34 | private resolutions: PeerTubeResolution[] = null | |
35 | ||
36 | constructor (private embed: PeerTubeEmbed) { | |
37 | } | |
38 | ||
39 | initialize () { | |
40 | this.constructChannel() | |
41 | this.setupStateTracking() | |
42 | ||
43 | // We're ready! | |
44 | ||
45 | this.notifyReady() | |
46 | } | |
47 | ||
48 | private get element () { | |
49 | return this.embed.videoElement | |
50 | } | |
51 | ||
52 | private constructChannel () { | |
53 | let channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope }) | |
54 | ||
55 | channel.bind('play', (txn, params) => this.embed.player.play()) | |
56 | channel.bind('pause', (txn, params) => this.embed.player.pause()) | |
57 | channel.bind('seek', (txn, time) => this.embed.player.currentTime(time)) | |
58 | channel.bind('setVolume', (txn, value) => this.embed.player.volume(value)) | |
59 | channel.bind('getVolume', (txn, value) => this.embed.player.volume()) | |
60 | channel.bind('isReady', (txn, params) => this.isReady) | |
61 | channel.bind('setResolution', (txn, resolutionId) => this.setResolution(resolutionId)) | |
62 | channel.bind('getResolutions', (txn, params) => this.resolutions) | |
63 | channel.bind('setPlaybackRate', (txn, playbackRate) => this.embed.player.playbackRate(playbackRate)) | |
64 | channel.bind('getPlaybackRate', (txn, params) => this.embed.player.playbackRate()) | |
65 | channel.bind('getPlaybackRates', (txn, params) => this.embed.playerOptions.playbackRates) | |
66 | ||
67 | this.channel = channel | |
68 | } | |
69 | ||
70 | private setResolution (resolutionId: number) { | |
71 | if (resolutionId === -1 && this.embed.player.peertube().isAutoResolutionForbidden()) return | |
72 | ||
73 | // Auto resolution | |
74 | if (resolutionId === -1) { | |
75 | this.embed.player.peertube().enableAutoResolution() | |
76 | return | |
77 | } | |
78 | ||
79 | this.embed.player.peertube().disableAutoResolution() | |
80 | this.embed.player.peertube().updateResolution(resolutionId) | |
81 | } | |
82 | ||
83 | /** | |
84 | * Let the host know that we're ready to go! | |
85 | */ | |
86 | private notifyReady () { | |
87 | this.isReady = true | |
88 | this.channel.notify({ method: 'ready', params: true }) | |
89 | } | |
90 | ||
91 | private setupStateTracking () { | |
92 | let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted' | |
93 | ||
94 | setInterval(() => { | |
95 | let position = this.element.currentTime | |
96 | let volume = this.element.volume | |
97 | ||
98 | this.channel.notify({ | |
99 | method: 'playbackStatusUpdate', | |
100 | params: { | |
101 | position, | |
102 | volume, | |
103 | playbackState: currentState | |
104 | } | |
105 | }) | |
106 | }, 500) | |
107 | ||
108 | this.element.addEventListener('play', ev => { | |
109 | currentState = 'playing' | |
110 | this.channel.notify({ method: 'playbackStatusChange', params: 'playing' }) | |
111 | }) | |
112 | ||
113 | this.element.addEventListener('pause', ev => { | |
114 | currentState = 'paused' | |
115 | this.channel.notify({ method: 'playbackStatusChange', params: 'paused' }) | |
116 | }) | |
117 | ||
118 | // PeerTube specific capabilities | |
119 | ||
120 | this.embed.player.peertube().on('autoResolutionUpdate', () => this.loadResolutions()) | |
121 | this.embed.player.peertube().on('videoFileUpdate', () => this.loadResolutions()) | |
122 | } | |
123 | ||
124 | private loadResolutions () { | |
125 | let resolutions = [] | |
126 | let currentResolutionId = this.embed.player.peertube().getCurrentResolutionId() | |
127 | ||
128 | for (const videoFile of this.embed.player.peertube().videoFiles) { | |
129 | let label = videoFile.resolution.label | |
130 | if (videoFile.fps && videoFile.fps >= 50) { | |
131 | label += videoFile.fps | |
132 | } | |
133 | ||
134 | resolutions.push({ | |
135 | id: videoFile.resolution.id, | |
136 | label, | |
137 | src: videoFile.magnetUri, | |
138 | active: videoFile.resolution.id === currentResolutionId | |
139 | }) | |
140 | } | |
141 | ||
142 | this.resolutions = resolutions | |
143 | this.channel.notify({ | |
144 | method: 'resolutionUpdate', | |
145 | params: this.resolutions | |
146 | }) | |
147 | } | |
148 | } | |
149 | ||
150 | class PeerTubeEmbed { | |
151 | videoElement: HTMLVideoElement | |
152 | player: any | |
153 | playerOptions: any | |
154 | api: PeerTubeEmbedApi = null | |
155 | autoplay = false | |
156 | controls = true | |
157 | muted = false | |
158 | loop = false | |
159 | enableApi = false | |
160 | startTime = 0 | |
161 | scope = 'peertube' | |
162 | ||
163 | static async main () { | |
164 | const videoContainerId = 'video-container' | |
165 | const embed = new PeerTubeEmbed(videoContainerId) | |
166 | await embed.init() | |
167 | } | |
168 | ||
169 | constructor (private videoContainerId: string) { | |
170 | this.videoElement = document.getElementById(videoContainerId) as HTMLVideoElement | |
171 | } | |
172 | ||
173 | getVideoUrl (id: string) { | |
174 | return window.location.origin + '/api/v1/videos/' + id | |
175 | } | |
176 | ||
177 | loadVideoInfo (videoId: string): Promise<Response> { | |
178 | return fetch(this.getVideoUrl(videoId)) | |
179 | } | |
180 | ||
181 | removeElement (element: HTMLElement) { | |
182 | element.parentElement.removeChild(element) | |
183 | } | |
184 | ||
185 | displayError (videoElement: HTMLVideoElement, text: string) { | |
186 | // Remove video element | |
187 | this.removeElement(videoElement) | |
188 | ||
189 | document.title = 'Sorry - ' + text | |
190 | ||
191 | const errorBlock = document.getElementById('error-block') | |
192 | errorBlock.style.display = 'flex' | |
193 | ||
194 | const errorText = document.getElementById('error-content') | |
195 | errorText.innerHTML = text | |
196 | } | |
197 | ||
198 | videoNotFound (videoElement: HTMLVideoElement) { | |
199 | const text = 'This video does not exist.' | |
200 | this.displayError(videoElement, text) | |
201 | } | |
202 | ||
203 | videoFetchError (videoElement: HTMLVideoElement) { | |
204 | const text = 'We cannot fetch the video. Please try again later.' | |
205 | this.displayError(videoElement, text) | |
206 | } | |
207 | ||
208 | getParamToggle (params: URLSearchParams, name: string, defaultValue: boolean) { | |
209 | return params.has(name) ? (params.get(name) === '1' || params.get(name) === 'true') : defaultValue | |
210 | } | |
211 | ||
212 | getParamString (params: URLSearchParams, name: string, defaultValue: string) { | |
213 | return params.has(name) ? params.get(name) : defaultValue | |
214 | } | |
215 | ||
216 | async init () { | |
217 | try { | |
218 | await this.initCore() | |
219 | } catch (e) { | |
220 | console.error(e) | |
221 | } | |
222 | } | |
223 | ||
224 | private initializeApi () { | |
225 | if (!this.enableApi) return | |
226 | ||
227 | this.api = new PeerTubeEmbedApi(this) | |
228 | this.api.initialize() | |
229 | } | |
230 | ||
231 | private loadParams () { | |
232 | try { | |
233 | let params = new URL(window.location.toString()).searchParams | |
234 | ||
235 | this.autoplay = this.getParamToggle(params, 'autoplay', this.autoplay) | |
236 | this.controls = this.getParamToggle(params, 'controls', this.controls) | |
237 | this.muted = this.getParamToggle(params, 'muted', this.muted) | |
238 | this.loop = this.getParamToggle(params, 'loop', this.loop) | |
239 | this.enableApi = this.getParamToggle(params, 'api', this.enableApi) | |
240 | this.scope = this.getParamString(params, 'scope', this.scope) | |
241 | ||
242 | const startTimeParamString = params.get('start') | |
243 | const startTimeParamNumber = parseInt(startTimeParamString, 10) | |
244 | ||
245 | if (isNaN(startTimeParamNumber) === false) this.startTime = startTimeParamNumber | |
246 | } catch (err) { | |
247 | console.error('Cannot get params from URL.', err) | |
248 | } | |
249 | } | |
250 | ||
251 | private async initCore () { | |
252 | const urlParts = window.location.href.split('/') | |
253 | const lastPart = urlParts[ urlParts.length - 1 ] | |
254 | const videoId = lastPart.indexOf('?') === -1 ? lastPart : lastPart.split('?')[ 0 ] | |
255 | ||
256 | await loadLocale(window.location.origin, vjs, navigator.language) | |
257 | let response = await this.loadVideoInfo(videoId) | |
258 | ||
259 | if (!response.ok) { | |
260 | if (response.status === 404) return this.videoNotFound(this.videoElement) | |
261 | ||
262 | return this.videoFetchError(this.videoElement) | |
263 | } | |
264 | ||
265 | const videoInfo: VideoDetails = await response.json() | |
266 | ||
267 | this.loadParams() | |
268 | ||
269 | const videojsOptions = getVideojsOptions({ | |
270 | autoplay: this.autoplay, | |
271 | controls: this.controls, | |
272 | muted: this.muted, | |
273 | loop: this.loop, | |
274 | startTime: this.startTime, | |
275 | ||
276 | inactivityTimeout: 1500, | |
277 | videoViewUrl: this.getVideoUrl(videoId) + '/views', | |
278 | playerElement: this.videoElement, | |
279 | videoFiles: videoInfo.files, | |
280 | videoDuration: videoInfo.duration, | |
281 | enableHotkeys: true, | |
282 | peertubeLink: true, | |
283 | poster: window.location.origin + videoInfo.previewPath, | |
284 | theaterMode: false | |
285 | }) | |
286 | ||
287 | this.playerOptions = videojsOptions | |
288 | this.player = vjs(this.videoContainerId, videojsOptions, () => { | |
289 | ||
290 | window[ 'videojsPlayer' ] = this.player | |
291 | ||
292 | if (this.controls) { | |
293 | this.player.dock({ | |
294 | title: videoInfo.name, | |
295 | description: this.player.localize('Uses P2P, others may know your IP is downloading this video.') | |
296 | }) | |
297 | } | |
298 | ||
299 | addContextMenu(this.player, window.location.origin + videoInfo.embedPath) | |
300 | this.initializeApi() | |
301 | }) | |
302 | } | |
303 | } | |
304 | ||
305 | PeerTubeEmbed.main() | |
306 | .catch(err => console.error('Cannot init embed.', err)) |