client/src/assets/player/peertube-player-manager.ts

   1 import { VideoFile } from '../../../../shared/models/videos'
   2 // @ts-ignore
   3 import * as videojs from 'video.js'
   4 import 'videojs-hotkeys'
   5 import 'videojs-dock'
   6 import 'videojs-contextmenu-ui'
   7 import 'videojs-contrib-quality-levels'
   8 import './peertube-plugin'
   9 import './videojs-components/peertube-link-button'
  10 import './videojs-components/resolution-menu-button'
  11 import './videojs-components/settings-menu-button'
  12 import './videojs-components/p2p-info-button'
  13 import './videojs-components/peertube-load-progress-bar'
  14 import './videojs-components/theater-button'
  15 import { P2PMediaLoaderPluginOptions, UserWatching, VideoJSCaption, VideoJSPluginOptions, videojsUntyped } from './peertube-videojs-typings'
  16 import { buildVideoEmbed, buildVideoLink, copyToClipboard, getRtcConfig } from './utils'
  17 import { getCompleteLocale, getShortLocale, is18nLocale, isDefaultLocale } from '../../../../shared/models/i18n/i18n'
  18 import { segmentValidatorFactory } from './p2p-media-loader/segment-validator'
  19 import { segmentUrlBuilderFactory } from './p2p-media-loader/segment-url-builder'
  20
  21 // Change 'Playback Rate' to 'Speed' (smaller for our settings menu)
  22 videojsUntyped.getComponent('PlaybackRateMenuButton').prototype.controlText_ = 'Speed'
  23 // Change Captions to Subtitles/CC
  24 videojsUntyped.getComponent('CaptionsButton').prototype.controlText_ = 'Subtitles/CC'
  25 // We just want to display 'Off' instead of 'captions off', keep a space so the variable == true (hacky I know)
  26 videojsUntyped.getComponent('CaptionsButton').prototype.label_ = ' '
  27
  28 export type PlayerMode = 'webtorrent' | 'p2p-media-loader'
  29
  30 export type WebtorrentOptions = {
  31   videoFiles: VideoFile[]
  32 }
  33
  34 export type P2PMediaLoaderOptions = {
  35   playlistUrl: string
  36   segmentsSha256Url: string
  37   trackerAnnounce: string[]
  38   redundancyBaseUrls: string[]
  39   videoFiles: VideoFile[]
  40 }
  41
  42 export type CommonOptions = {
  43   playerElement: HTMLVideoElement
  44   onPlayerElementChange: (element: HTMLVideoElement) => void
  45
  46   autoplay: boolean
  47   videoDuration: number
  48   enableHotkeys: boolean
  49   inactivityTimeout: number
  50   poster: string
  51   startTime: number | string
  52
  53   theaterMode: boolean
  54   captions: boolean
  55   peertubeLink: boolean
  56
  57   videoViewUrl: string
  58   embedUrl: string
  59
  60   language?: string
  61   controls?: boolean
  62   muted?: boolean
  63   loop?: boolean
  64   subtitle?: string
  65
  66   videoCaptions: VideoJSCaption[]
  67
  68   userWatching?: UserWatching
  69
  70   serverUrl: string
  71 }
  72
  73 export type PeertubePlayerManagerOptions = {
  74   common: CommonOptions,
  75   webtorrent: WebtorrentOptions,
  76   p2pMediaLoader?: P2PMediaLoaderOptions
  77 }
  78
  79 export class PeertubePlayerManager {
  80
  81   private static videojsLocaleCache: { [ path: string ]: any } = {}
  82   private static playerElementClassName: string
  83
  84   static getServerTranslations (serverUrl: string, locale: string) {
  85     const path = PeertubePlayerManager.getLocalePath(serverUrl, locale)
  86     // It is the default locale, nothing to translate
  87     if (!path) return Promise.resolve(undefined)
  88
  89     return fetch(path + '/server.json')
  90       .then(res => res.json())
  91       .catch(err => {
  92         console.error('Cannot get server translations', err)
  93         return undefined
  94       })
  95   }
  96
  97   static async initialize (mode: PlayerMode, options: PeertubePlayerManagerOptions) {
  98     let p2pMediaLoader: any
  99
 100     this.playerElementClassName = options.common.playerElement.className
 101
 102     if (mode === 'webtorrent') await import('./webtorrent/webtorrent-plugin')
 103     if (mode === 'p2p-media-loader') {
 104       [ p2pMediaLoader ] = await Promise.all([
 105         import('p2p-media-loader-hlsjs'),
 106         import('./p2p-media-loader/p2p-media-loader-plugin')
 107       ])
 108     }
 109
 110     const videojsOptions = this.getVideojsOptions(mode, options, p2pMediaLoader)
 111
 112     await this.loadLocaleInVideoJS(options.common.serverUrl, options.common.language)
 113
 114     const self = this
 115     return new Promise(res => {
 116       videojs(options.common.playerElement, videojsOptions, function (this: any) {
 117         const player = this
 118
 119         player.tech_.on('error', () => {
 120           // Fallback to webtorrent?
 121           if (mode === 'p2p-media-loader') {
 122             self.fallbackToWebTorrent(player, options)
 123           }
 124         })
 125
 126         self.addContextMenu(mode, player, options.common.embedUrl)
 127
 128         return res(player)
 129       })
 130     })
 131   }
 132
 133   private static async fallbackToWebTorrent (player: any, options: PeertubePlayerManagerOptions) {
 134     const newVideoElement = document.createElement('video')
 135     newVideoElement.className = this.playerElementClassName
 136
 137     // VideoJS wraps our video element inside a div
 138     const currentParentPlayerElement = options.common.playerElement.parentNode
 139     currentParentPlayerElement.parentNode.insertBefore(newVideoElement, currentParentPlayerElement)
 140
 141     options.common.playerElement = newVideoElement
 142     options.common.onPlayerElementChange(newVideoElement)
 143
 144     player.dispose()
 145
 146     await import('./webtorrent/webtorrent-plugin')
 147
 148     const mode = 'webtorrent'
 149     const videojsOptions = this.getVideojsOptions(mode, options)
 150
 151     const self = this
 152     videojs(newVideoElement, videojsOptions, function (this: any) {
 153       const player = this
 154
 155       self.addContextMenu(mode, player, options.common.embedUrl)
 156     })
 157   }
 158
 159   private static loadLocaleInVideoJS (serverUrl: string, locale: string) {
 160     const path = PeertubePlayerManager.getLocalePath(serverUrl, locale)
 161     // It is the default locale, nothing to translate
 162     if (!path) return Promise.resolve(undefined)
 163
 164     let p: Promise<any>
 165
 166     if (PeertubePlayerManager.videojsLocaleCache[path]) {
 167       p = Promise.resolve(PeertubePlayerManager.videojsLocaleCache[path])
 168     } else {
 169       p = fetch(path + '/player.json')
 170         .then(res => res.json())
 171         .then(json => {
 172           PeertubePlayerManager.videojsLocaleCache[path] = json
 173           return json
 174         })
 175         .catch(err => {
 176           console.error('Cannot get player translations', err)
 177           return undefined
 178         })
 179     }
 180
 181     const completeLocale = getCompleteLocale(locale)
 182     return p.then(json => videojs.addLanguage(getShortLocale(completeLocale), json))
 183   }
 184
 185   private static getVideojsOptions (mode: PlayerMode, options: PeertubePlayerManagerOptions, p2pMediaLoaderModule?: any) {
 186     const commonOptions = options.common
 187     const webtorrentOptions = options.webtorrent
 188     const p2pMediaLoaderOptions = options.p2pMediaLoader
 189
 190     let autoplay = options.common.autoplay
 191     let html5 = {}
 192
 193     const plugins: VideoJSPluginOptions = {
 194       peertube: {
 195         mode,
 196         autoplay, // Use peertube plugin autoplay because we get the file by webtorrent
 197         videoViewUrl: commonOptions.videoViewUrl,
 198         videoDuration: commonOptions.videoDuration,
 199         startTime: commonOptions.startTime,
 200         userWatching: commonOptions.userWatching,
 201         subtitle: commonOptions.subtitle,
 202         videoCaptions: commonOptions.videoCaptions
 203       }
 204     }
 205
 206     if (mode === 'p2p-media-loader') {
 207       const p2pMediaLoader: P2PMediaLoaderPluginOptions = {
 208         redundancyBaseUrls: options.p2pMediaLoader.redundancyBaseUrls,
 209         type: 'application/x-mpegURL',
 210         src: p2pMediaLoaderOptions.playlistUrl
 211       }
 212
 213       const trackerAnnounce = p2pMediaLoaderOptions.trackerAnnounce
 214         .filter(t => t.startsWith('ws'))
 215
 216       const p2pMediaLoaderConfig = {
 217         loader: {
 218           trackerAnnounce,
 219           segmentValidator: segmentValidatorFactory(options.p2pMediaLoader.segmentsSha256Url),
 220           rtcConfig: getRtcConfig(),
 221           requiredSegmentsPriority: 5,
 222           segmentUrlBuilder: segmentUrlBuilderFactory(options.p2pMediaLoader.redundancyBaseUrls)
 223         },
 224         segments: {
 225           swarmId: p2pMediaLoaderOptions.playlistUrl
 226         }
 227       }
 228       const streamrootHls = {
 229         levelLabelHandler: (level: { height: number, width: number }) => {
 230           const file = p2pMediaLoaderOptions.videoFiles.find(f => f.resolution.id === level.height)
 231
 232           let label = file.resolution.label
 233           if (file.fps >= 50) label += file.fps
 234
 235           return label
 236         },
 237         html5: {
 238           hlsjsConfig: {
 239             liveSyncDurationCount: 7,
 240             loader: new p2pMediaLoaderModule.Engine(p2pMediaLoaderConfig).createLoaderClass()
 241           }
 242         }
 243       }
 244
 245       Object.assign(plugins, { p2pMediaLoader, streamrootHls })
 246       html5 = streamrootHls.html5
 247     }
 248
 249     if (mode === 'webtorrent') {
 250       const webtorrent = {
 251         autoplay,
 252         videoDuration: commonOptions.videoDuration,
 253         playerElement: commonOptions.playerElement,
 254         videoFiles: webtorrentOptions.videoFiles
 255       }
 256       Object.assign(plugins, { webtorrent })
 257
 258       // WebTorrent plugin handles autoplay, because we do some hackish stuff in there
 259       autoplay = false
 260     }
 261
 262     const videojsOptions = {
 263       html5,
 264
 265       // We don't use text track settings for now
 266       textTrackSettings: false,
 267       controls: commonOptions.controls !== undefined ? commonOptions.controls : true,
 268       loop: commonOptions.loop !== undefined ? commonOptions.loop : false,
 269
 270       muted: commonOptions.muted !== undefined
 271         ? commonOptions.muted
 272         : undefined, // Undefined so the player knows it has to check the local storage
 273
 274       poster: commonOptions.poster,
 275       autoplay: autoplay === true ? 'any' : autoplay, // Use 'any' instead of true to get notifier by videojs if autoplay fails
 276       inactivityTimeout: commonOptions.inactivityTimeout,
 277       playbackRates: [ 0.5, 0.75, 1, 1.25, 1.5, 2 ],
 278       plugins,
 279       controlBar: {
 280         children: this.getControlBarChildren(mode, {
 281           captions: commonOptions.captions,
 282           peertubeLink: commonOptions.peertubeLink,
 283           theaterMode: commonOptions.theaterMode
 284         })
 285       }
 286     }
 287
 288     if (commonOptions.enableHotkeys === true) {
 289       Object.assign(videojsOptions.plugins, {
 290         hotkeys: {
 291           enableVolumeScroll: false,
 292           enableModifiersForNumbers: false,
 293
 294           fullscreenKey: function (event: KeyboardEvent) {
 295             // fullscreen with the f key or Ctrl+Enter
 296             return event.key === 'f' || (event.ctrlKey && event.key === 'Enter')
 297           },
 298
 299           seekStep: function (event: KeyboardEvent) {
 300             // mimic VLC seek behavior, and default to 5 (original value is 5).
 301             if (event.ctrlKey && event.altKey) {
 302               return 5 * 60
 303             } else if (event.ctrlKey) {
 304               return 60
 305             } else if (event.altKey) {
 306               return 10
 307             } else {
 308               return 5
 309             }
 310           },
 311
 312           customKeys: {
 313             increasePlaybackRateKey: {
 314               key: function (event: KeyboardEvent) {
 315                 return event.key === '>'
 316               },
 317               handler: function (player: videojs.Player) {
 318                 player.playbackRate((player.playbackRate() + 0.1).toFixed(2))
 319               }
 320             },
 321             decreasePlaybackRateKey: {
 322               key: function (event: KeyboardEvent) {
 323                 return event.key === '<'
 324               },
 325               handler: function (player: videojs.Player) {
 326                 player.playbackRate((player.playbackRate() - 0.1).toFixed(2))
 327               }
 328             },
 329             frameByFrame: {
 330               key: function (event: KeyboardEvent) {
 331                 return event.key === '.'
 332               },
 333               handler: function (player: videojs.Player) {
 334                 player.pause()
 335                 // Calculate movement distance (assuming 30 fps)
 336                 const dist = 1 / 30
 337                 player.currentTime(player.currentTime() + dist)
 338               }
 339             }
 340           }
 341         }
 342       })
 343     }
 344
 345     if (commonOptions.language && !isDefaultLocale(commonOptions.language)) {
 346       Object.assign(videojsOptions, { language: commonOptions.language })
 347     }
 348
 349     return videojsOptions
 350   }
 351
 352   private static getControlBarChildren (mode: PlayerMode, options: {
 353     peertubeLink: boolean
 354     theaterMode: boolean,
 355     captions: boolean
 356   }) {
 357     const settingEntries = []
 358     const loadProgressBar = mode === 'webtorrent' ? 'peerTubeLoadProgressBar' : 'loadProgressBar'
 359
 360     // Keep an order
 361     settingEntries.push('playbackRateMenuButton')
 362     if (options.captions === true) settingEntries.push('captionsButton')
 363     settingEntries.push('resolutionMenuButton')
 364
 365     const children = {
 366       'playToggle': {},
 367       'currentTimeDisplay': {},
 368       'timeDivider': {},
 369       'durationDisplay': {},
 370       'liveDisplay': {},
 371
 372       'flexibleWidthSpacer': {},
 373       'progressControl': {
 374         children: {
 375           'seekBar': {
 376             children: {
 377               [loadProgressBar]: {},
 378               'mouseTimeDisplay': {},
 379               'playProgressBar': {}
 380             }
 381           }
 382         }
 383       },
 384
 385       'p2PInfoButton': {},
 386
 387       'muteToggle': {},
 388       'volumeControl': {},
 389
 390       'settingsButton': {
 391         setup: {
 392           maxHeightOffset: 40
 393         },
 394         entries: settingEntries
 395       }
 396     }
 397
 398     if (options.peertubeLink === true) {
 399       Object.assign(children, {
 400         'peerTubeLinkButton': {}
 401       })
 402     }
 403
 404     if (options.theaterMode === true) {
 405       Object.assign(children, {
 406         'theaterButton': {}
 407       })
 408     }
 409
 410     Object.assign(children, {
 411       'fullscreenToggle': {}
 412     })
 413
 414     return children
 415   }
 416
 417   private static addContextMenu (mode: PlayerMode, player: any, videoEmbedUrl: string) {
 418     const content = [
 419       {
 420         label: player.localize('Copy the video URL'),
 421         listener: function () {
 422           copyToClipboard(buildVideoLink())
 423         }
 424       },
 425       {
 426         label: player.localize('Copy the video URL at the current time'),
 427         listener: function () {
 428           const player = this as videojs.Player
 429           copyToClipboard(buildVideoLink(player.currentTime()))
 430         }
 431       },
 432       {
 433         label: player.localize('Copy embed code'),
 434         listener: () => {
 435           copyToClipboard(buildVideoEmbed(videoEmbedUrl))
 436         }
 437       }
 438     ]
 439
 440     if (mode === 'webtorrent') {
 441       content.push({
 442         label: player.localize('Copy magnet URI'),
 443         listener: function () {
 444           const player = this as videojs.Player
 445           copyToClipboard(player.webtorrent().getCurrentVideoFile().magnetUri)
 446         }
 447       })
 448     }
 449
 450     player.contextmenuUI({ content })
 451   }
 452
 453   private static getLocalePath (serverUrl: string, locale: string) {
 454     const completeLocale = getCompleteLocale(locale)
 455
 456     if (!is18nLocale(completeLocale) || isDefaultLocale(completeLocale)) return undefined
 457
 458     return serverUrl + '/client/locales/' + completeLocale
 459   }
 460 }
 461
 462 // ############################################################################
 463
 464 export {
 465   videojs
 466 }