client/src/app/videos/+video-watch/video-watch.component.ts

   1 import { catchError } from 'rxjs/operators'
   2 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { RedirectService } from '@app/core/routing/redirect.service'
   5 import { peertubeLocalStorage, peertubeSessionStorage } from '@app/shared/misc/peertube-web-storage'
   6 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   7 import { MetaService } from '@ngx-meta/core'
   8 import { AuthUser, Notifier, ServerService } from '@app/core'
   9 import { forkJoin, Observable, Subscription } from 'rxjs'
  10 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
  11 import { UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '../../../../../shared'
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { RestExtractor, VideoBlacklistService } from '../../shared'
  14 import { VideoDetails } from '../../shared/video/video-details.model'
  15 import { VideoService } from '../../shared/video/video.service'
  16 import { VideoShareComponent } from './modal/video-share.component'
  17 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  18 import { I18n } from '@ngx-translate/i18n-polyfill'
  19 import { environment } from '../../../environments/environment'
  20 import { VideoCaptionService } from '@app/shared/video-caption'
  21 import { MarkdownService } from '@app/shared/renderer'
  22 import {
  23   videojs,
  24   CustomizationOptions,
  25   P2PMediaLoaderOptions,
  26   PeertubePlayerManager,
  27   PeertubePlayerManagerOptions,
  28   PlayerMode
  29 } from '../../../assets/player/peertube-player-manager'
  30 import { VideoPlaylist } from '@app/shared/video-playlist/video-playlist.model'
  31 import { VideoPlaylistService } from '@app/shared/video-playlist/video-playlist.service'
  32 import { Video } from '@app/shared/video/video.model'
  33 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  34 import { VideoWatchPlaylistComponent } from '@app/videos/+video-watch/video-watch-playlist.component'
  35 import { getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
  36 import { PluginService } from '@app/core/plugins/plugin.service'
  37 import { HooksService } from '@app/core/plugins/hooks.service'
  38 import { PlatformLocation } from '@angular/common'
  39 import { randomInt } from '@shared/core-utils/miscs/miscs'
  40 import { RecommendedVideosComponent } from '../recommendations/recommended-videos.component'
  41
  42 @Component({
  43   selector: 'my-video-watch',
  44   templateUrl: './video-watch.component.html',
  45   styleUrls: [ './video-watch.component.scss' ]
  46 })
  47 export class VideoWatchComponent implements OnInit, OnDestroy {
  48   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  49
  50   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  51   @ViewChild('videoShareModal', { static: false }) videoShareModal: VideoShareComponent
  52   @ViewChild('videoSupportModal', { static: false }) videoSupportModal: VideoSupportComponent
  53   @ViewChild('subscribeButton', { static: false }) subscribeButton: SubscribeButtonComponent
  54
  55   player: any
  56   playerElement: HTMLVideoElement
  57   theaterEnabled = false
  58   userRating: UserVideoRateType = null
  59   descriptionLoading = false
  60
  61   video: VideoDetails = null
  62   videoCaptions: VideoCaption[] = []
  63
  64   playlist: VideoPlaylist = null
  65
  66   completeDescriptionShown = false
  67   completeVideoDescription: string
  68   shortVideoDescription: string
  69   videoHTMLDescription = ''
  70   likesBarTooltipText = ''
  71   hasAlreadyAcceptedPrivacyConcern = false
  72   remoteServerDown = false
  73   hotkeys: Hotkey[] = []
  74
  75   private nextVideoUuid = ''
  76   private currentTime: number
  77   private paramsSub: Subscription
  78   private queryParamsSub: Subscription
  79   private configSub: Subscription
  80
  81   constructor (
  82     private elementRef: ElementRef,
  83     private changeDetector: ChangeDetectorRef,
  84     private route: ActivatedRoute,
  85     private router: Router,
  86     private videoService: VideoService,
  87     private playlistService: VideoPlaylistService,
  88     private videoBlacklistService: VideoBlacklistService,
  89     private confirmService: ConfirmService,
  90     private metaService: MetaService,
  91     private authService: AuthService,
  92     private serverService: ServerService,
  93     private restExtractor: RestExtractor,
  94     private notifier: Notifier,
  95     private pluginService: PluginService,
  96     private markdownService: MarkdownService,
  97     private zone: NgZone,
  98     private redirectService: RedirectService,
  99     private videoCaptionService: VideoCaptionService,
 100     private i18n: I18n,
 101     private hotkeysService: HotkeysService,
 102     private hooks: HooksService,
 103     private location: PlatformLocation,
 104     @Inject(LOCALE_ID) private localeId: string
 105   ) {}
 106
 107   get user () {
 108     return this.authService.getUser()
 109   }
 110
 111   async ngOnInit () {
 112     this.configSub = this.serverService.configLoaded
 113         .subscribe(() => {
 114           if (
 115             isWebRTCDisabled() ||
 116             this.serverService.getConfig().tracker.enabled === false ||
 117             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 118           ) {
 119             this.hasAlreadyAcceptedPrivacyConcern = true
 120           }
 121         })
 122
 123     this.paramsSub = this.route.params.subscribe(routeParams => {
 124       const videoId = routeParams[ 'videoId' ]
 125       if (videoId) this.loadVideo(videoId)
 126
 127       const playlistId = routeParams[ 'playlistId' ]
 128       if (playlistId) this.loadPlaylist(playlistId)
 129     })
 130
 131     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 132       const videoId = queryParams[ 'videoId' ]
 133       if (videoId) this.loadVideo(videoId)
 134     })
 135
 136     this.initHotkeys()
 137
 138     this.theaterEnabled = getStoredTheater()
 139
 140     this.hooks.runAction('action:video-watch.init', 'video-watch')
 141   }
 142
 143   ngOnDestroy () {
 144     this.flushPlayer()
 145
 146     // Unsubscribe subscriptions
 147     if (this.paramsSub) this.paramsSub.unsubscribe()
 148     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 149
 150     // Unbind hotkeys
 151     this.hotkeysService.remove(this.hotkeys)
 152   }
 153
 154   setLike () {
 155     if (this.isUserLoggedIn() === false) return
 156
 157     // Already liked this video
 158     if (this.userRating === 'like') this.setRating('none')
 159     else this.setRating('like')
 160   }
 161
 162   setDislike () {
 163     if (this.isUserLoggedIn() === false) return
 164
 165     // Already disliked this video
 166     if (this.userRating === 'dislike') this.setRating('none')
 167     else this.setRating('dislike')
 168   }
 169
 170   getRatePopoverText () {
 171     if (this.isUserLoggedIn()) return undefined
 172
 173     return this.i18n('You need to be connected to rate this content.')
 174   }
 175
 176   showMoreDescription () {
 177     if (this.completeVideoDescription === undefined) {
 178       return this.loadCompleteDescription()
 179     }
 180
 181     this.updateVideoDescription(this.completeVideoDescription)
 182     this.completeDescriptionShown = true
 183   }
 184
 185   showLessDescription () {
 186     this.updateVideoDescription(this.shortVideoDescription)
 187     this.completeDescriptionShown = false
 188   }
 189
 190   loadCompleteDescription () {
 191     this.descriptionLoading = true
 192
 193     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 194         .subscribe(
 195           description => {
 196             this.completeDescriptionShown = true
 197             this.descriptionLoading = false
 198
 199             this.shortVideoDescription = this.video.description
 200             this.completeVideoDescription = description
 201
 202             this.updateVideoDescription(this.completeVideoDescription)
 203           },
 204
 205           error => {
 206             this.descriptionLoading = false
 207             this.notifier.error(error.message)
 208           }
 209         )
 210   }
 211
 212   showSupportModal () {
 213     this.pausePlayer()
 214
 215     this.videoSupportModal.show()
 216   }
 217
 218   showShareModal () {
 219     this.pausePlayer()
 220
 221     this.videoShareModal.show(this.currentTime)
 222   }
 223
 224   isUserLoggedIn () {
 225     return this.authService.isLoggedIn()
 226   }
 227
 228   getVideoTags () {
 229     if (!this.video || Array.isArray(this.video.tags) === false) return []
 230
 231     return this.video.tags
 232   }
 233
 234   onRecommendations (videos: Video[]) {
 235     if (videos.length > 0) {
 236       // Pick a random video until the recommendations are improved
 237       this.nextVideoUuid = videos[randomInt(0,videos.length - 1)].uuid
 238     }
 239   }
 240
 241   onModalOpened () {
 242     this.pausePlayer()
 243   }
 244
 245   onVideoRemoved () {
 246     this.redirectService.redirectToHomepage()
 247   }
 248
 249   acceptedPrivacyConcern () {
 250     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 251     this.hasAlreadyAcceptedPrivacyConcern = true
 252   }
 253
 254   isVideoToTranscode () {
 255     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 256   }
 257
 258   isVideoToImport () {
 259     return this.video && this.video.state.id === VideoState.TO_IMPORT
 260   }
 261
 262   hasVideoScheduledPublication () {
 263     return this.video && this.video.scheduledUpdate !== undefined
 264   }
 265
 266   isVideoBlur (video: Video) {
 267     return video.isVideoNSFWForUser(this.user, this.serverService.getConfig())
 268   }
 269
 270   isAutoPlayEnabled () {
 271     return (
 272       this.user && this.user.autoPlayNextVideo ||
 273       peertubeSessionStorage.getItem(RecommendedVideosComponent.SESSION_STORAGE_AUTO_PLAY_NEXT_VIDEO) === 'true'
 274     )
 275   }
 276
 277   isPlaylistAutoPlayEnabled () {
 278     return (
 279       this.user && this.user.autoPlayNextVideoPlaylist ||
 280       peertubeSessionStorage.getItem(VideoWatchPlaylistComponent.SESSION_STORAGE_AUTO_PLAY_NEXT_VIDEO_PLAYLIST) === 'true'
 281     )
 282   }
 283
 284   private loadVideo (videoId: string) {
 285     // Video did not change
 286     if (this.video && this.video.uuid === videoId) return
 287
 288     if (this.player) this.player.pause()
 289
 290     const videoObs = this.hooks.wrapObsFun(
 291       this.videoService.getVideo.bind(this.videoService),
 292       { videoId },
 293       'video-watch',
 294       'filter:api.video-watch.video.get.params',
 295       'filter:api.video-watch.video.get.result'
 296     )
 297
 298     // Video did change
 299     forkJoin([
 300       videoObs,
 301       this.videoCaptionService.listCaptions(videoId)
 302     ])
 303       .pipe(
 304         // If 401, the video is private or blacklisted so redirect to 404
 305         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 306       )
 307       .subscribe(([ video, captionsResult ]) => {
 308         const queryParams = this.route.snapshot.queryParams
 309
 310         const urlOptions = {
 311           startTime: queryParams.start,
 312           stopTime: queryParams.stop,
 313
 314           muted: queryParams.muted,
 315           loop: queryParams.loop,
 316           subtitle: queryParams.subtitle,
 317
 318           playerMode: queryParams.mode,
 319           peertubeLink: false
 320         }
 321
 322         this.onVideoFetched(video, captionsResult.data, urlOptions)
 323             .catch(err => this.handleError(err))
 324       })
 325   }
 326
 327   private loadPlaylist (playlistId: string) {
 328     // Playlist did not change
 329     if (this.playlist && this.playlist.uuid === playlistId) return
 330
 331     this.playlistService.getVideoPlaylist(playlistId)
 332       .pipe(
 333         // If 401, the video is private or blacklisted so redirect to 404
 334         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 335       )
 336       .subscribe(playlist => {
 337         this.playlist = playlist
 338
 339         const videoId = this.route.snapshot.queryParams['videoId']
 340         this.videoWatchPlaylist.loadPlaylistElements(playlist, !videoId)
 341       })
 342   }
 343
 344   private updateVideoDescription (description: string) {
 345     this.video.description = description
 346     this.setVideoDescriptionHTML()
 347       .catch(err => console.error(err))
 348   }
 349
 350   private async setVideoDescriptionHTML () {
 351     this.videoHTMLDescription = await this.markdownService.textMarkdownToHTML(this.video.description)
 352   }
 353
 354   private setVideoLikesBarTooltipText () {
 355     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 356       likesNumber: this.video.likes,
 357       dislikesNumber: this.video.dislikes
 358     })
 359   }
 360
 361   private handleError (err: any) {
 362     const errorMessage: string = typeof err === 'string' ? err : err.message
 363     if (!errorMessage) return
 364
 365     // Display a message in the video player instead of a notification
 366     if (errorMessage.indexOf('from xs param') !== -1) {
 367       this.flushPlayer()
 368       this.remoteServerDown = true
 369       this.changeDetector.detectChanges()
 370
 371       return
 372     }
 373
 374     this.notifier.error(errorMessage)
 375   }
 376
 377   private checkUserRating () {
 378     // Unlogged users do not have ratings
 379     if (this.isUserLoggedIn() === false) return
 380
 381     this.videoService.getUserVideoRating(this.video.id)
 382         .subscribe(
 383           ratingObject => {
 384             if (ratingObject) {
 385               this.userRating = ratingObject.rating
 386             }
 387           },
 388
 389           err => this.notifier.error(err.message)
 390         )
 391   }
 392
 393   private async onVideoFetched (
 394     video: VideoDetails,
 395     videoCaptions: VideoCaption[],
 396     urlOptions: CustomizationOptions & { playerMode: PlayerMode }
 397   ) {
 398     this.video = video
 399     this.videoCaptions = videoCaptions
 400
 401     // Re init attributes
 402     this.descriptionLoading = false
 403     this.completeDescriptionShown = false
 404     this.remoteServerDown = false
 405     this.currentTime = undefined
 406
 407     this.videoWatchPlaylist.updatePlaylistIndex(video)
 408
 409     if (this.isVideoBlur(this.video)) {
 410       const res = await this.confirmService.confirm(
 411         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 412         this.i18n('Mature or explicit content')
 413       )
 414       if (res === false) return this.location.back()
 415     }
 416
 417     // Flush old player if needed
 418     this.flushPlayer()
 419
 420     // Build video element, because videojs removes it on dispose
 421     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 422     this.playerElement = document.createElement('video')
 423     this.playerElement.className = 'video-js vjs-peertube-skin'
 424     this.playerElement.setAttribute('playsinline', 'true')
 425     playerElementWrapper.appendChild(this.playerElement)
 426
 427     const params = {
 428       video: this.video,
 429       videoCaptions,
 430       urlOptions,
 431       user: this.user
 432     }
 433     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 434       this.buildPlayerManagerOptions.bind(this),
 435       params,
 436       'video-watch',
 437       'filter:internal.video-watch.player.build-options.params',
 438       'filter:internal.video-watch.player.build-options.result'
 439     )
 440
 441     this.zone.runOutsideAngular(async () => {
 442       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 443       this.player.focus()
 444
 445       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 446
 447       this.player.on('timeupdate', () => {
 448         this.currentTime = Math.floor(this.player.currentTime())
 449       })
 450
 451       this.player.one('ended', () => {
 452         if (this.playlist) {
 453           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 454         } else if (this.isAutoPlayEnabled()) {
 455           this.zone.run(() => this.autoplayNext())
 456         }
 457       })
 458
 459       this.player.one('stopped', () => {
 460         if (this.playlist) {
 461           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 462         }
 463       })
 464
 465       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 466         this.zone.run(() => this.theaterEnabled = enabled)
 467       })
 468
 469       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player })
 470     })
 471
 472     this.setVideoDescriptionHTML()
 473     this.setVideoLikesBarTooltipText()
 474
 475     this.setOpenGraphTags()
 476     this.checkUserRating()
 477
 478     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', { videojs })
 479   }
 480
 481   private autoplayNext () {
 482     if (this.nextVideoUuid) {
 483       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 484     }
 485   }
 486
 487   private setRating (nextRating: UserVideoRateType) {
 488     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 489       like: this.videoService.setVideoLike,
 490       dislike: this.videoService.setVideoDislike,
 491       none: this.videoService.unsetVideoLike
 492     }
 493
 494     ratingMethods[nextRating].call(this.videoService, this.video.id)
 495           .subscribe(
 496             () => {
 497               // Update the video like attribute
 498               this.updateVideoRating(this.userRating, nextRating)
 499               this.userRating = nextRating
 500             },
 501
 502             (err: { message: string }) => this.notifier.error(err.message)
 503           )
 504   }
 505
 506   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 507     let likesToIncrement = 0
 508     let dislikesToIncrement = 0
 509
 510     if (oldRating) {
 511       if (oldRating === 'like') likesToIncrement--
 512       if (oldRating === 'dislike') dislikesToIncrement--
 513     }
 514
 515     if (newRating === 'like') likesToIncrement++
 516     if (newRating === 'dislike') dislikesToIncrement++
 517
 518     this.video.likes += likesToIncrement
 519     this.video.dislikes += dislikesToIncrement
 520
 521     this.video.buildLikeAndDislikePercents()
 522     this.setVideoLikesBarTooltipText()
 523   }
 524
 525   private setOpenGraphTags () {
 526     this.metaService.setTitle(this.video.name)
 527
 528     this.metaService.setTag('og:type', 'video')
 529
 530     this.metaService.setTag('og:title', this.video.name)
 531     this.metaService.setTag('name', this.video.name)
 532
 533     this.metaService.setTag('og:description', this.video.description)
 534     this.metaService.setTag('description', this.video.description)
 535
 536     this.metaService.setTag('og:image', this.video.previewPath)
 537
 538     this.metaService.setTag('og:duration', this.video.duration.toString())
 539
 540     this.metaService.setTag('og:site_name', 'PeerTube')
 541
 542     this.metaService.setTag('og:url', window.location.href)
 543     this.metaService.setTag('url', window.location.href)
 544   }
 545
 546   private isAutoplay () {
 547     // We'll jump to the thread id, so do not play the video
 548     if (this.route.snapshot.params['threadId']) return false
 549
 550     // Otherwise true by default
 551     if (!this.user) return true
 552
 553     // Be sure the autoPlay is set to false
 554     return this.user.autoPlayVideo !== false
 555   }
 556
 557   private flushPlayer () {
 558     // Remove player if it exists
 559     if (this.player) {
 560       try {
 561         this.player.dispose()
 562         this.player = undefined
 563       } catch (err) {
 564         console.error('Cannot dispose player.', err)
 565       }
 566     }
 567   }
 568
 569   private buildPlayerManagerOptions (params: {
 570     video: VideoDetails,
 571     videoCaptions: VideoCaption[],
 572     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 573     user?: AuthUser
 574   }) {
 575     const { video, videoCaptions, urlOptions, user } = params
 576     const getStartTime = () => {
 577       const byUrl = urlOptions.startTime !== undefined
 578       const byHistory = video.userHistory && !this.playlist
 579
 580       if (byUrl) {
 581         return timeToInt(urlOptions.startTime)
 582       } else if (byHistory) {
 583         return video.userHistory.currentTime
 584       } else {
 585         return 0
 586       }
 587     }
 588
 589     let startTime = getStartTime()
 590     // If we are at the end of the video, reset the timer
 591     if (video.duration - startTime <= 1) startTime = 0
 592
 593     const playerCaptions = videoCaptions.map(c => ({
 594       label: c.language.label,
 595       language: c.language.id,
 596       src: environment.apiUrl + c.captionPath
 597     }))
 598
 599     const options: PeertubePlayerManagerOptions = {
 600       common: {
 601         autoplay: this.isAutoplay(),
 602
 603         playerElement: this.playerElement,
 604         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 605
 606         videoDuration: video.duration,
 607         enableHotkeys: true,
 608         inactivityTimeout: 2500,
 609         poster: video.previewUrl,
 610
 611         startTime,
 612         stopTime: urlOptions.stopTime,
 613         controls: urlOptions.controls,
 614         muted: urlOptions.muted,
 615         loop: urlOptions.loop,
 616         subtitle: urlOptions.subtitle,
 617
 618         peertubeLink: urlOptions.peertubeLink,
 619
 620         theaterButton: true,
 621         captions: videoCaptions.length !== 0,
 622
 623         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 624           ? this.videoService.getVideoViewUrl(video.uuid)
 625           : null,
 626         embedUrl: video.embedUrl,
 627
 628         language: this.localeId,
 629
 630         userWatching: user && user.videosHistoryEnabled === true ? {
 631           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 632           authorizationHeader: this.authService.getRequestHeaderValue()
 633         } : undefined,
 634
 635         serverUrl: environment.apiUrl,
 636
 637         videoCaptions: playerCaptions
 638       },
 639
 640       webtorrent: {
 641         videoFiles: video.files
 642       }
 643     }
 644
 645     let mode: PlayerMode
 646
 647     if (urlOptions.playerMode) {
 648       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 649       else mode = 'webtorrent'
 650     } else {
 651       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 652       else mode = 'webtorrent'
 653     }
 654
 655     if (mode === 'p2p-media-loader') {
 656       const hlsPlaylist = video.getHlsPlaylist()
 657
 658       const p2pMediaLoader = {
 659         playlistUrl: hlsPlaylist.playlistUrl,
 660         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 661         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 662         trackerAnnounce: video.trackerUrls,
 663         videoFiles: hlsPlaylist.files
 664       } as P2PMediaLoaderOptions
 665
 666       Object.assign(options, { p2pMediaLoader })
 667     }
 668
 669     return { playerMode: mode, playerOptions: options }
 670   }
 671
 672   private pausePlayer () {
 673     if (!this.player) return
 674
 675     this.player.pause()
 676   }
 677
 678   private initHotkeys () {
 679     this.hotkeys = [
 680       // These hotkeys are managed by the player
 681       new Hotkey('f', e => e, undefined, this.i18n('Enter/exit fullscreen (requires player focus)')),
 682       new Hotkey('space', e => e, undefined, this.i18n('Play/Pause the video (requires player focus)')),
 683       new Hotkey('m', e => e, undefined, this.i18n('Mute/unmute the video (requires player focus)')),
 684
 685       new Hotkey('0-9', e => e, undefined, this.i18n('Skip to a percentage of the video: 0 is 0% and 9 is 90% (requires player focus)')),
 686
 687       new Hotkey('up', e => e, undefined, this.i18n('Increase the volume (requires player focus)')),
 688       new Hotkey('down', e => e, undefined, this.i18n('Decrease the volume (requires player focus)')),
 689
 690       new Hotkey('right', e => e, undefined, this.i18n('Seek the video forward (requires player focus)')),
 691       new Hotkey('left', e => e, undefined, this.i18n('Seek the video backward (requires player focus)')),
 692
 693       new Hotkey('>', e => e, undefined, this.i18n('Increase playback rate (requires player focus)')),
 694       new Hotkey('<', e => e, undefined, this.i18n('Decrease playback rate (requires player focus)')),
 695
 696       new Hotkey('.', e => e, undefined, this.i18n('Navigate in the video frame by frame (requires player focus)'))
 697     ]
 698
 699     if (this.isUserLoggedIn()) {
 700       this.hotkeys = this.hotkeys.concat([
 701         new Hotkey('shift+l', () => {
 702           this.setLike()
 703           return false
 704         }, undefined, this.i18n('Like the video')),
 705
 706         new Hotkey('shift+d', () => {
 707           this.setDislike()
 708           return false
 709         }, undefined, this.i18n('Dislike the video')),
 710
 711         new Hotkey('shift+s', () => {
 712           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 713           return false
 714         }, undefined, this.i18n('Subscribe to the account'))
 715       ])
 716     }
 717
 718     this.hotkeysService.add(this.hotkeys)
 719   }
 720 }