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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 | // FIXME: something weird with our path definition in tsconfig and typings | |
21 | // @ts-ignore | |
22 | import * as vjs from 'video.js' | |
23 | ||
24 | import * as Channel from 'jschannel' | |
25 | ||
26 | import { peertubeTranslate, ResultList, VideoDetails } from '../../../../shared' | |
27 | import { addContextMenu, getServerTranslations, getVideojsOptions, loadLocaleInVideoJS } from '../../assets/player/peertube-player' | |
28 | import { PeerTubeResolution } from '../player/definitions' | |
29 | import { VideoJSCaption } from '../../assets/player/peertube-videojs-typings' | |
30 | import { VideoCaption } from '../../../../shared/models/videos/caption/video-caption.model' | |
31 | ||
32 | /** | |
33 | * Embed API exposes control of the embed player to the outside world via | |
34 | * JSChannels and window.postMessage | |
35 | */ | |
36 | class PeerTubeEmbedApi { | |
37 | private channel: Channel.MessagingChannel | |
38 | private isReady = false | |
39 | private resolutions: PeerTubeResolution[] = null | |
40 | ||
41 | constructor (private embed: PeerTubeEmbed) { | |
42 | } | |
43 | ||
44 | initialize () { | |
45 | this.constructChannel() | |
46 | this.setupStateTracking() | |
47 | ||
48 | // We're ready! | |
49 | ||
50 | this.notifyReady() | |
51 | } | |
52 | ||
53 | private get element () { | |
54 | return this.embed.videoElement | |
55 | } | |
56 | ||
57 | private constructChannel () { | |
58 | let channel = Channel.build({ window: window.parent, origin: '*', scope: this.embed.scope }) | |
59 | ||
60 | channel.bind('play', (txn, params) => this.embed.player.play()) | |
61 | channel.bind('pause', (txn, params) => this.embed.player.pause()) | |
62 | channel.bind('seek', (txn, time) => this.embed.player.currentTime(time)) | |
63 | channel.bind('setVolume', (txn, value) => this.embed.player.volume(value)) | |
64 | channel.bind('getVolume', (txn, value) => this.embed.player.volume()) | |
65 | channel.bind('isReady', (txn, params) => this.isReady) | |
66 | channel.bind('setResolution', (txn, resolutionId) => this.setResolution(resolutionId)) | |
67 | channel.bind('getResolutions', (txn, params) => this.resolutions) | |
68 | channel.bind('setPlaybackRate', (txn, playbackRate) => this.embed.player.playbackRate(playbackRate)) | |
69 | channel.bind('getPlaybackRate', (txn, params) => this.embed.player.playbackRate()) | |
70 | channel.bind('getPlaybackRates', (txn, params) => this.embed.playerOptions.playbackRates) | |
71 | ||
72 | this.channel = channel | |
73 | } | |
74 | ||
75 | private setResolution (resolutionId: number) { | |
76 | if (resolutionId === -1 && this.embed.player.peertube().isAutoResolutionForbidden()) return | |
77 | ||
78 | // Auto resolution | |
79 | if (resolutionId === -1) { | |
80 | this.embed.player.peertube().enableAutoResolution() | |
81 | return | |
82 | } | |
83 | ||
84 | this.embed.player.peertube().disableAutoResolution() | |
85 | this.embed.player.peertube().updateResolution(resolutionId) | |
86 | } | |
87 | ||
88 | /** | |
89 | * Let the host know that we're ready to go! | |
90 | */ | |
91 | private notifyReady () { | |
92 | this.isReady = true | |
93 | this.channel.notify({ method: 'ready', params: true }) | |
94 | } | |
95 | ||
96 | private setupStateTracking () { | |
97 | let currentState: 'playing' | 'paused' | 'unstarted' = 'unstarted' | |
98 | ||
99 | setInterval(() => { | |
100 | let position = this.element.currentTime | |
101 | let volume = this.element.volume | |
102 | ||
103 | this.channel.notify({ | |
104 | method: 'playbackStatusUpdate', | |
105 | params: { | |
106 | position, | |
107 | volume, | |
108 | playbackState: currentState | |
109 | } | |
110 | }) | |
111 | }, 500) | |
112 | ||
113 | this.element.addEventListener('play', ev => { | |
114 | currentState = 'playing' | |
115 | this.channel.notify({ method: 'playbackStatusChange', params: 'playing' }) | |
116 | }) | |
117 | ||
118 | this.element.addEventListener('pause', ev => { | |
119 | currentState = 'paused' | |
120 | this.channel.notify({ method: 'playbackStatusChange', params: 'paused' }) | |
121 | }) | |
122 | ||
123 | // PeerTube specific capabilities | |
124 | ||
125 | this.embed.player.peertube().on('autoResolutionUpdate', () => this.loadResolutions()) | |
126 | this.embed.player.peertube().on('videoFileUpdate', () => this.loadResolutions()) | |
127 | } | |
128 | ||
129 | private loadResolutions () { | |
130 | let resolutions = [] | |
131 | let currentResolutionId = this.embed.player.peertube().getCurrentResolutionId() | |
132 | ||
133 | for (const videoFile of this.embed.player.peertube().videoFiles) { | |
134 | let label = videoFile.resolution.label | |
135 | if (videoFile.fps && videoFile.fps >= 50) { | |
136 | label += videoFile.fps | |
137 | } | |
138 | ||
139 | resolutions.push({ | |
140 | id: videoFile.resolution.id, | |
141 | label, | |
142 | src: videoFile.magnetUri, | |
143 | active: videoFile.resolution.id === currentResolutionId | |
144 | }) | |
145 | } | |
146 | ||
147 | this.resolutions = resolutions | |
148 | this.channel.notify({ | |
149 | method: 'resolutionUpdate', | |
150 | params: this.resolutions | |
151 | }) | |
152 | } | |
153 | } | |
154 | ||
155 | class PeerTubeEmbed { | |
156 | videoElement: HTMLVideoElement | |
157 | player: any | |
158 | playerOptions: any | |
159 | api: PeerTubeEmbedApi = null | |
160 | autoplay = false | |
161 | controls = true | |
162 | muted = false | |
163 | loop = false | |
164 | enableApi = false | |
165 | startTime: number | string = 0 | |
166 | scope = 'peertube' | |
167 | ||
168 | static async main () { | |
169 | const videoContainerId = 'video-container' | |
170 | const embed = new PeerTubeEmbed(videoContainerId) | |
171 | await embed.init() | |
172 | } | |
173 | ||
174 | constructor (private videoContainerId: string) { | |
175 | this.videoElement = document.getElementById(videoContainerId) as HTMLVideoElement | |
176 | } | |
177 | ||
178 | getVideoUrl (id: string) { | |
179 | return window.location.origin + '/api/v1/videos/' + id | |
180 | } | |
181 | ||
182 | loadVideoInfo (videoId: string): Promise<Response> { | |
183 | return fetch(this.getVideoUrl(videoId)) | |
184 | } | |
185 | ||
186 | loadVideoCaptions (videoId: string): Promise<Response> { | |
187 | return fetch(this.getVideoUrl(videoId) + '/captions') | |
188 | } | |
189 | ||
190 | removeElement (element: HTMLElement) { | |
191 | element.parentElement.removeChild(element) | |
192 | } | |
193 | ||
194 | displayError (text: string) { | |
195 | // Remove video element | |
196 | if (this.videoElement) this.removeElement(this.videoElement) | |
197 | ||
198 | document.title = 'Sorry - ' + text | |
199 | ||
200 | const errorBlock = document.getElementById('error-block') | |
201 | errorBlock.style.display = 'flex' | |
202 | ||
203 | const errorText = document.getElementById('error-content') | |
204 | errorText.innerHTML = text | |
205 | } | |
206 | ||
207 | videoNotFound () { | |
208 | const text = 'This video does not exist.' | |
209 | this.displayError(text) | |
210 | } | |
211 | ||
212 | videoFetchError () { | |
213 | const text = 'We cannot fetch the video. Please try again later.' | |
214 | this.displayError(text) | |
215 | } | |
216 | ||
217 | getParamToggle (params: URLSearchParams, name: string, defaultValue: boolean) { | |
218 | return params.has(name) ? (params.get(name) === '1' || params.get(name) === 'true') : defaultValue | |
219 | } | |
220 | ||
221 | getParamString (params: URLSearchParams, name: string, defaultValue: string) { | |
222 | return params.has(name) ? params.get(name) : defaultValue | |
223 | } | |
224 | ||
225 | async init () { | |
226 | try { | |
227 | await this.initCore() | |
228 | } catch (e) { | |
229 | console.error(e) | |
230 | } | |
231 | } | |
232 | ||
233 | private initializeApi () { | |
234 | if (!this.enableApi) return | |
235 | ||
236 | this.api = new PeerTubeEmbedApi(this) | |
237 | this.api.initialize() | |
238 | } | |
239 | ||
240 | private loadParams () { | |
241 | try { | |
242 | let params = new URL(window.location.toString()).searchParams | |
243 | ||
244 | this.autoplay = this.getParamToggle(params, 'autoplay', this.autoplay) | |
245 | this.controls = this.getParamToggle(params, 'controls', this.controls) | |
246 | this.muted = this.getParamToggle(params, 'muted', this.muted) | |
247 | this.loop = this.getParamToggle(params, 'loop', this.loop) | |
248 | this.enableApi = this.getParamToggle(params, 'api', this.enableApi) | |
249 | this.scope = this.getParamString(params, 'scope', this.scope) | |
250 | ||
251 | const startTimeParamString = params.get('start') | |
252 | if (startTimeParamString) this.startTime = startTimeParamString | |
253 | } catch (err) { | |
254 | console.error('Cannot get params from URL.', err) | |
255 | } | |
256 | } | |
257 | ||
258 | private async initCore () { | |
259 | const urlParts = window.location.href.split('/') | |
260 | const lastPart = urlParts[ urlParts.length - 1 ] | |
261 | const videoId = lastPart.indexOf('?') === -1 ? lastPart : lastPart.split('?')[ 0 ] | |
262 | ||
263 | const [ , serverTranslations, videoResponse, captionsResponse ] = await Promise.all([ | |
264 | loadLocaleInVideoJS(window.location.origin, vjs, navigator.language), | |
265 | getServerTranslations(window.location.origin, navigator.language), | |
266 | this.loadVideoInfo(videoId), | |
267 | this.loadVideoCaptions(videoId) | |
268 | ]) | |
269 | ||
270 | if (!videoResponse.ok) { | |
271 | if (videoResponse.status === 404) return this.videoNotFound() | |
272 | ||
273 | return this.videoFetchError() | |
274 | } | |
275 | ||
276 | const videoInfo: VideoDetails = await videoResponse.json() | |
277 | let videoCaptions: VideoJSCaption[] = [] | |
278 | if (captionsResponse.ok) { | |
279 | const { data } = (await captionsResponse.json()) as ResultList<VideoCaption> | |
280 | videoCaptions = data.map(c => ({ | |
281 | label: peertubeTranslate(c.language.label, serverTranslations), | |
282 | language: c.language.id, | |
283 | src: window.location.origin + c.captionPath | |
284 | })) | |
285 | } | |
286 | ||
287 | this.loadParams() | |
288 | ||
289 | const videojsOptions = getVideojsOptions({ | |
290 | autoplay: this.autoplay, | |
291 | controls: this.controls, | |
292 | muted: this.muted, | |
293 | loop: this.loop, | |
294 | startTime: this.startTime, | |
295 | ||
296 | videoCaptions, | |
297 | inactivityTimeout: 1500, | |
298 | videoViewUrl: this.getVideoUrl(videoId) + '/views', | |
299 | playerElement: this.videoElement, | |
300 | videoFiles: videoInfo.files, | |
301 | videoDuration: videoInfo.duration, | |
302 | enableHotkeys: true, | |
303 | peertubeLink: true, | |
304 | poster: window.location.origin + videoInfo.previewPath, | |
305 | theaterMode: false | |
306 | }) | |
307 | ||
308 | this.playerOptions = videojsOptions | |
309 | this.player = vjs(this.videoContainerId, videojsOptions, () => { | |
310 | this.player.on('customError', (event: any, data: any) => this.handleError(data.err)) | |
311 | ||
312 | window[ 'videojsPlayer' ] = this.player | |
313 | ||
314 | if (this.controls) { | |
315 | this.player.dock({ | |
316 | title: videoInfo.name, | |
317 | description: this.player.localize('Uses P2P, others may know your IP is downloading this video.') | |
318 | }) | |
319 | } | |
320 | ||
321 | addContextMenu(this.player, window.location.origin + videoInfo.embedPath) | |
322 | ||
323 | this.initializeApi() | |
324 | }) | |
325 | } | |
326 | ||
327 | private handleError (err: Error) { | |
328 | if (err.message.indexOf('from xs param') !== -1) { | |
329 | this.player.dispose() | |
330 | this.videoElement = null | |
331 | this.displayError('This video is not available because the remote instance is not responding.') | |
332 | return | |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | PeerTubeEmbed.main() | |
338 | .catch(err => console.error('Cannot init embed.', err)) |