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

   1 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   2 import { forkJoin, Observable, Subscription } from 'rxjs'
   3 import { catchError } from 'rxjs/operators'
   4 import { PlatformLocation } from '@angular/common'
   5 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   6 import { ActivatedRoute, Router } from '@angular/router'
   7 import {
   8   AuthService,
   9   AuthUser,
  10   ConfirmService,
  11   MarkdownService,
  12   Notifier,
  13   PeerTubeSocket,
  14   RestExtractor,
  15   ServerService,
  16   UserService
  17 } from '@app/core'
  18 import { HooksService } from '@app/core/plugins/hooks.service'
  19 import { RedirectService } from '@app/core/routing/redirect.service'
  20 import { isXPercentInViewport, scrollToTop } from '@app/helpers'
  21 import { Video, VideoCaptionService, VideoDetails, VideoService } from '@app/shared/shared-main'
  22 import { VideoShareComponent } from '@app/shared/shared-share-modal'
  23 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
  24 import { VideoActionsDisplayType, VideoDownloadComponent } from '@app/shared/shared-video-miniature'
  25 import { VideoPlaylist, VideoPlaylistService } from '@app/shared/shared-video-playlist'
  26 import { MetaService } from '@ngx-meta/core'
  27 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  28 import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
  29 import { ServerConfig, ServerErrorCode, UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '@shared/models'
  30 import { getStoredP2PEnabled, getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
  31 import {
  32   CustomizationOptions,
  33   P2PMediaLoaderOptions,
  34   PeertubePlayerManager,
  35   PeertubePlayerManagerOptions,
  36   PlayerMode,
  37   videojs
  38 } from '../../../assets/player/peertube-player-manager'
  39 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  40 import { environment } from '../../../environments/environment'
  41 import { VideoSupportComponent } from './modal/video-support.component'
  42 import { VideoWatchPlaylistComponent } from './video-watch-playlist.component'
  43
  44 type URLOptions = CustomizationOptions & { playerMode: PlayerMode }
  45
  46 @Component({
  47   selector: 'my-video-watch',
  48   templateUrl: './video-watch.component.html',
  49   styleUrls: [ './video-watch.component.scss' ]
  50 })
  51 export class VideoWatchComponent implements OnInit, OnDestroy {
  52   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  53
  54   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  55   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  56   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  57   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  58   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  59
  60   player: any
  61   playerElement: HTMLVideoElement
  62   theaterEnabled = false
  63   userRating: UserVideoRateType = null
  64   descriptionLoading = false
  65
  66   video: VideoDetails = null
  67   videoCaptions: VideoCaption[] = []
  68
  69   playlistPosition: number
  70   playlist: VideoPlaylist = null
  71
  72   completeDescriptionShown = false
  73   completeVideoDescription: string
  74   shortVideoDescription: string
  75   videoHTMLDescription = ''
  76   likesBarTooltipText = ''
  77   hasAlreadyAcceptedPrivacyConcern = false
  78   remoteServerDown = false
  79   hotkeys: Hotkey[] = []
  80
  81   tooltipLike = ''
  82   tooltipDislike = ''
  83   tooltipSupport = ''
  84   tooltipSaveToPlaylist = ''
  85
  86   videoActionsOptions: VideoActionsDisplayType = {
  87     playlist: false,
  88     download: true,
  89     update: true,
  90     blacklist: true,
  91     delete: true,
  92     report: true,
  93     duplicate: true,
  94     mute: true,
  95     liveInfo: true
  96   }
  97
  98   private nextVideoUuid = ''
  99   private nextVideoTitle = ''
 100   private currentTime: number
 101   private paramsSub: Subscription
 102   private queryParamsSub: Subscription
 103   private configSub: Subscription
 104   private liveVideosSub: Subscription
 105
 106   private serverConfig: ServerConfig
 107
 108   constructor (
 109     private elementRef: ElementRef,
 110     private changeDetector: ChangeDetectorRef,
 111     private route: ActivatedRoute,
 112     private router: Router,
 113     private videoService: VideoService,
 114     private playlistService: VideoPlaylistService,
 115     private confirmService: ConfirmService,
 116     private metaService: MetaService,
 117     private authService: AuthService,
 118     private userService: UserService,
 119     private serverService: ServerService,
 120     private restExtractor: RestExtractor,
 121     private notifier: Notifier,
 122     private markdownService: MarkdownService,
 123     private zone: NgZone,
 124     private redirectService: RedirectService,
 125     private videoCaptionService: VideoCaptionService,
 126     private hotkeysService: HotkeysService,
 127     private hooks: HooksService,
 128     private peertubeSocket: PeerTubeSocket,
 129     private location: PlatformLocation,
 130     @Inject(LOCALE_ID) private localeId: string
 131   ) {
 132     this.tooltipLike = $localize`Like this video`
 133     this.tooltipDislike = $localize`Dislike this video`
 134     this.tooltipSupport = $localize`Support options for this video`
 135     this.tooltipSaveToPlaylist = $localize`Save to playlist`
 136   }
 137
 138   get user () {
 139     return this.authService.getUser()
 140   }
 141
 142   get anonymousUser () {
 143     return this.userService.getAnonymousUser()
 144   }
 145
 146   async ngOnInit () {
 147     PeertubePlayerManager.initState()
 148
 149     this.serverConfig = this.serverService.getTmpConfig()
 150
 151     this.configSub = this.serverService.getConfig()
 152         .subscribe(config => {
 153           this.serverConfig = config
 154
 155           if (
 156             isWebRTCDisabled() ||
 157             this.serverConfig.tracker.enabled === false ||
 158             getStoredP2PEnabled() === false ||
 159             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 160           ) {
 161             this.hasAlreadyAcceptedPrivacyConcern = true
 162           }
 163         })
 164
 165     this.paramsSub = this.route.params.subscribe(routeParams => {
 166       const videoId = routeParams[ 'videoId' ]
 167       if (videoId) this.loadVideo(videoId)
 168
 169       const playlistId = routeParams[ 'playlistId' ]
 170       if (playlistId) this.loadPlaylist(playlistId)
 171     })
 172
 173     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 174       this.playlistPosition = queryParams[ 'playlistPosition' ]
 175       this.videoWatchPlaylist.updatePlaylistIndex(this.playlistPosition)
 176
 177       const start = queryParams[ 'start' ]
 178       if (this.player && start) this.player.currentTime(parseInt(start, 10))
 179     })
 180
 181     this.initHotkeys()
 182
 183     this.theaterEnabled = getStoredTheater()
 184
 185     this.hooks.runAction('action:video-watch.init', 'video-watch')
 186   }
 187
 188   ngOnDestroy () {
 189     this.flushPlayer()
 190
 191     // Unsubscribe subscriptions
 192     if (this.paramsSub) this.paramsSub.unsubscribe()
 193     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 194     if (this.configSub) this.configSub.unsubscribe()
 195     if (this.liveVideosSub) this.liveVideosSub.unsubscribe()
 196
 197     // Unbind hotkeys
 198     this.hotkeysService.remove(this.hotkeys)
 199   }
 200
 201   setLike () {
 202     if (this.isUserLoggedIn() === false) return
 203
 204     // Already liked this video
 205     if (this.userRating === 'like') this.setRating('none')
 206     else this.setRating('like')
 207   }
 208
 209   setDislike () {
 210     if (this.isUserLoggedIn() === false) return
 211
 212     // Already disliked this video
 213     if (this.userRating === 'dislike') this.setRating('none')
 214     else this.setRating('dislike')
 215   }
 216
 217   getRatePopoverText () {
 218     if (this.isUserLoggedIn()) return undefined
 219
 220     return $localize`You need to be <a href="/login">logged in</a> to rate this video.`
 221   }
 222
 223   showMoreDescription () {
 224     if (this.completeVideoDescription === undefined) {
 225       return this.loadCompleteDescription()
 226     }
 227
 228     this.updateVideoDescription(this.completeVideoDescription)
 229     this.completeDescriptionShown = true
 230   }
 231
 232   showLessDescription () {
 233     this.updateVideoDescription(this.shortVideoDescription)
 234     this.completeDescriptionShown = false
 235   }
 236
 237   showDownloadModal () {
 238     this.videoDownloadModal.show(this.video, this.videoCaptions)
 239   }
 240
 241   isVideoDownloadable () {
 242     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled && !this.video.isLive
 243   }
 244
 245   loadCompleteDescription () {
 246     this.descriptionLoading = true
 247
 248     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 249         .subscribe(
 250           description => {
 251             this.completeDescriptionShown = true
 252             this.descriptionLoading = false
 253
 254             this.shortVideoDescription = this.video.description
 255             this.completeVideoDescription = description
 256
 257             this.updateVideoDescription(this.completeVideoDescription)
 258           },
 259
 260           error => {
 261             this.descriptionLoading = false
 262             this.notifier.error(error.message)
 263           }
 264         )
 265   }
 266
 267   showSupportModal () {
 268     // Check video was playing before opening support modal
 269     const isVideoPlaying = this.isPlaying()
 270
 271     this.pausePlayer()
 272
 273     const modalRef = this.videoSupportModal.show()
 274
 275     modalRef.result.then(() => {
 276       if (isVideoPlaying) {
 277         this.resumePlayer()
 278       }
 279     })
 280   }
 281
 282   showShareModal () {
 283     this.pausePlayer()
 284
 285     this.videoShareModal.show(this.currentTime, this.videoWatchPlaylist.currentPlaylistPosition)
 286   }
 287
 288   isUserLoggedIn () {
 289     return this.authService.isLoggedIn()
 290   }
 291
 292   getVideoTags () {
 293     if (!this.video || Array.isArray(this.video.tags) === false) return []
 294
 295     return this.video.tags
 296   }
 297
 298   onRecommendations (videos: Video[]) {
 299     if (videos.length > 0) {
 300       // The recommended videos's first element should be the next video
 301       const video = videos[0]
 302       this.nextVideoUuid = video.uuid
 303       this.nextVideoTitle = video.name
 304     }
 305   }
 306
 307   onModalOpened () {
 308     this.pausePlayer()
 309   }
 310
 311   onVideoRemoved () {
 312     this.redirectService.redirectToHomepage()
 313   }
 314
 315   declinedPrivacyConcern () {
 316     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'false')
 317     this.hasAlreadyAcceptedPrivacyConcern = false
 318   }
 319
 320   acceptedPrivacyConcern () {
 321     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 322     this.hasAlreadyAcceptedPrivacyConcern = true
 323   }
 324
 325   isVideoToTranscode () {
 326     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 327   }
 328
 329   isVideoToImport () {
 330     return this.video && this.video.state.id === VideoState.TO_IMPORT
 331   }
 332
 333   hasVideoScheduledPublication () {
 334     return this.video && this.video.scheduledUpdate !== undefined
 335   }
 336
 337   isLive () {
 338     return !!(this.video?.isLive)
 339   }
 340
 341   isWaitingForLive () {
 342     return this.video?.state.id === VideoState.WAITING_FOR_LIVE
 343   }
 344
 345   isLiveEnded () {
 346     return this.video?.state.id === VideoState.LIVE_ENDED
 347   }
 348
 349   isVideoBlur (video: Video) {
 350     return video.isVideoNSFWForUser(this.user, this.serverConfig)
 351   }
 352
 353   isAutoPlayEnabled () {
 354     return (
 355       (this.user && this.user.autoPlayNextVideo) ||
 356       this.anonymousUser.autoPlayNextVideo
 357     )
 358   }
 359
 360   handleTimestampClicked (timestamp: number) {
 361     if (!this.player || this.video.isLive) return
 362
 363     this.player.currentTime(timestamp)
 364     scrollToTop()
 365   }
 366
 367   isPlaylistAutoPlayEnabled () {
 368     return (
 369       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 370       this.anonymousUser.autoPlayNextVideoPlaylist
 371     )
 372   }
 373
 374   isChannelDisplayNameGeneric () {
 375     const genericChannelDisplayName = [
 376       `Main ${this.video.channel.ownerAccount.name} channel`,
 377       `Default ${this.video.channel.ownerAccount.name} channel`
 378     ]
 379
 380     return genericChannelDisplayName.includes(this.video.channel.displayName)
 381   }
 382
 383   onPlaylistVideoFound (videoId: string) {
 384     this.loadVideo(videoId)
 385   }
 386
 387   private loadVideo (videoId: string) {
 388     // Video did not change
 389     if (this.video && this.video.uuid === videoId) return
 390
 391     if (this.player) this.player.pause()
 392
 393     const videoObs = this.hooks.wrapObsFun(
 394       this.videoService.getVideo.bind(this.videoService),
 395       { videoId },
 396       'video-watch',
 397       'filter:api.video-watch.video.get.params',
 398       'filter:api.video-watch.video.get.result'
 399     )
 400
 401     // Video did change
 402     forkJoin([
 403       videoObs,
 404       this.videoCaptionService.listCaptions(videoId)
 405     ])
 406       .pipe(
 407         // If 400, 403 or 404, the video is private or blocked so redirect to 404
 408         catchError(err => {
 409           if (err.body.errorCode === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && err.body.originUrl) {
 410             const search = window.location.search
 411             let originUrl = err.body.originUrl
 412             if (search) originUrl += search
 413
 414             this.confirmService.confirm(
 415               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 416               $localize`Redirection`
 417             ).then(res => {
 418               if (res === false) {
 419                 return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 420                   HttpStatusCode.BAD_REQUEST_400,
 421                   HttpStatusCode.FORBIDDEN_403,
 422                   HttpStatusCode.NOT_FOUND_404
 423                 ])
 424               }
 425
 426               return window.location.href = originUrl
 427             })
 428           }
 429
 430           return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 431             HttpStatusCode.BAD_REQUEST_400,
 432             HttpStatusCode.FORBIDDEN_403,
 433             HttpStatusCode.NOT_FOUND_404
 434           ])
 435         })
 436       )
 437       .subscribe(([ video, captionsResult ]) => {
 438         const queryParams = this.route.snapshot.queryParams
 439
 440         const urlOptions = {
 441           resume: queryParams.resume,
 442
 443           startTime: queryParams.start,
 444           stopTime: queryParams.stop,
 445
 446           muted: queryParams.muted,
 447           loop: queryParams.loop,
 448           subtitle: queryParams.subtitle,
 449
 450           playerMode: queryParams.mode,
 451           peertubeLink: false
 452         }
 453
 454         this.onVideoFetched(video, captionsResult.data, urlOptions)
 455             .catch(err => this.handleError(err))
 456       })
 457   }
 458
 459   private loadPlaylist (playlistId: string) {
 460     // Playlist did not change
 461     if (this.playlist && this.playlist.uuid === playlistId) return
 462
 463     this.playlistService.getVideoPlaylist(playlistId)
 464       .pipe(
 465         // If 400 or 403, the video is private or blocked so redirect to 404
 466         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 467           HttpStatusCode.BAD_REQUEST_400,
 468           HttpStatusCode.FORBIDDEN_403,
 469           HttpStatusCode.NOT_FOUND_404
 470         ]))
 471       )
 472       .subscribe(playlist => {
 473         this.playlist = playlist
 474
 475         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 476       })
 477   }
 478
 479   private updateVideoDescription (description: string) {
 480     this.video.description = description
 481     this.setVideoDescriptionHTML()
 482       .catch(err => console.error(err))
 483   }
 484
 485   private async setVideoDescriptionHTML () {
 486     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 487     this.videoHTMLDescription = await this.markdownService.processVideoTimestamps(html)
 488   }
 489
 490   private setVideoLikesBarTooltipText () {
 491     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 492   }
 493
 494   private handleError (err: any) {
 495     const errorMessage: string = typeof err === 'string' ? err : err.message
 496     if (!errorMessage) return
 497
 498     // Display a message in the video player instead of a notification
 499     if (errorMessage.indexOf('from xs param') !== -1) {
 500       this.flushPlayer()
 501       this.remoteServerDown = true
 502       this.changeDetector.detectChanges()
 503
 504       return
 505     }
 506
 507     this.notifier.error(errorMessage)
 508   }
 509
 510   private checkUserRating () {
 511     // Unlogged users do not have ratings
 512     if (this.isUserLoggedIn() === false) return
 513
 514     this.videoService.getUserVideoRating(this.video.id)
 515         .subscribe(
 516           ratingObject => {
 517             if (ratingObject) {
 518               this.userRating = ratingObject.rating
 519             }
 520           },
 521
 522           err => this.notifier.error(err.message)
 523         )
 524   }
 525
 526   private async onVideoFetched (
 527     video: VideoDetails,
 528     videoCaptions: VideoCaption[],
 529     urlOptions: URLOptions
 530   ) {
 531     this.subscribeToLiveEventsIfNeeded(this.video, video)
 532
 533     this.video = video
 534     this.videoCaptions = videoCaptions
 535
 536     // Re init attributes
 537     this.descriptionLoading = false
 538     this.completeDescriptionShown = false
 539     this.remoteServerDown = false
 540     this.currentTime = undefined
 541
 542     if (this.isVideoBlur(this.video)) {
 543       const res = await this.confirmService.confirm(
 544         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 545         $localize`Mature or explicit content`
 546       )
 547       if (res === false) return this.location.back()
 548     }
 549
 550     const videoState = this.video.state.id
 551     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) return
 552
 553     // Flush old player if needed
 554     this.flushPlayer()
 555
 556     // Build video element, because videojs removes it on dispose
 557     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 558     this.playerElement = document.createElement('video')
 559     this.playerElement.className = 'video-js vjs-peertube-skin'
 560     this.playerElement.setAttribute('playsinline', 'true')
 561     playerElementWrapper.appendChild(this.playerElement)
 562
 563     const params = {
 564       video: this.video,
 565       videoCaptions,
 566       urlOptions,
 567       user: this.user
 568     }
 569     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 570       this.buildPlayerManagerOptions.bind(this),
 571       params,
 572       'video-watch',
 573       'filter:internal.video-watch.player.build-options.params',
 574       'filter:internal.video-watch.player.build-options.result'
 575     )
 576
 577     this.zone.runOutsideAngular(async () => {
 578       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 579
 580       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 581
 582       this.player.on('timeupdate', () => {
 583         this.currentTime = Math.floor(this.player.currentTime())
 584       })
 585
 586       /**
 587        * replaces this.player.one('ended')
 588        * 'condition()': true to make the upnext functionality trigger,
 589        *                false to disable the upnext functionality
 590        * go to the next video in 'condition()' if you don't want of the timer.
 591        * 'next': function triggered at the end of the timer.
 592        * 'suspended': function used at each clic of the timer checking if we need
 593        * to reset progress and wait until 'suspended' becomes truthy again.
 594        */
 595       this.player.upnext({
 596         timeout: 10000, // 10s
 597         headText: $localize`Up Next`,
 598         cancelText: $localize`Cancel`,
 599         suspendedText: $localize`Autoplay is suspended`,
 600         getTitle: () => this.nextVideoTitle,
 601         next: () => this.zone.run(() => this.autoplayNext()),
 602         condition: () => {
 603           if (this.playlist) {
 604             if (this.isPlaylistAutoPlayEnabled()) {
 605               // upnext will not trigger, and instead the next video will play immediately
 606               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 607             }
 608           } else if (this.isAutoPlayEnabled()) {
 609             return true // upnext will trigger
 610           }
 611           return false // upnext will not trigger, and instead leave the video stopping
 612         },
 613         suspended: () => {
 614           return (
 615             !isXPercentInViewport(this.player.el(), 80) ||
 616             !document.getElementById('content').contains(document.activeElement)
 617           )
 618         }
 619       })
 620
 621       this.player.one('stopped', () => {
 622         if (this.playlist) {
 623           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 624         }
 625       })
 626
 627       this.player.one('ended', () => {
 628         if (this.video.isLive) {
 629           this.video.state.id = VideoState.LIVE_ENDED
 630         }
 631       })
 632
 633       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 634         this.zone.run(() => this.theaterEnabled = enabled)
 635       })
 636
 637       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 638     })
 639
 640     this.setVideoDescriptionHTML()
 641     this.setVideoLikesBarTooltipText()
 642
 643     this.setOpenGraphTags()
 644     this.checkUserRating()
 645
 646     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', { videojs })
 647   }
 648
 649   private autoplayNext () {
 650     if (this.playlist) {
 651       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 652     } else if (this.nextVideoUuid) {
 653       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 654     }
 655   }
 656
 657   private setRating (nextRating: UserVideoRateType) {
 658     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 659       like: this.videoService.setVideoLike,
 660       dislike: this.videoService.setVideoDislike,
 661       none: this.videoService.unsetVideoLike
 662     }
 663
 664     ratingMethods[nextRating].call(this.videoService, this.video.id)
 665           .subscribe(
 666             () => {
 667               // Update the video like attribute
 668               this.updateVideoRating(this.userRating, nextRating)
 669               this.userRating = nextRating
 670             },
 671
 672             (err: { message: string }) => this.notifier.error(err.message)
 673           )
 674   }
 675
 676   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 677     let likesToIncrement = 0
 678     let dislikesToIncrement = 0
 679
 680     if (oldRating) {
 681       if (oldRating === 'like') likesToIncrement--
 682       if (oldRating === 'dislike') dislikesToIncrement--
 683     }
 684
 685     if (newRating === 'like') likesToIncrement++
 686     if (newRating === 'dislike') dislikesToIncrement++
 687
 688     this.video.likes += likesToIncrement
 689     this.video.dislikes += dislikesToIncrement
 690
 691     this.video.buildLikeAndDislikePercents()
 692     this.setVideoLikesBarTooltipText()
 693   }
 694
 695   private setOpenGraphTags () {
 696     this.metaService.setTitle(this.video.name)
 697
 698     this.metaService.setTag('og:type', 'video')
 699
 700     this.metaService.setTag('og:title', this.video.name)
 701     this.metaService.setTag('name', this.video.name)
 702
 703     this.metaService.setTag('og:description', this.video.description)
 704     this.metaService.setTag('description', this.video.description)
 705
 706     this.metaService.setTag('og:image', this.video.previewPath)
 707
 708     this.metaService.setTag('og:duration', this.video.duration.toString())
 709
 710     this.metaService.setTag('og:site_name', 'PeerTube')
 711
 712     this.metaService.setTag('og:url', window.location.href)
 713     this.metaService.setTag('url', window.location.href)
 714   }
 715
 716   private isAutoplay () {
 717     // We'll jump to the thread id, so do not play the video
 718     if (this.route.snapshot.params['threadId']) return false
 719
 720     // Otherwise true by default
 721     if (!this.user) return true
 722
 723     // Be sure the autoPlay is set to false
 724     return this.user.autoPlayVideo !== false
 725   }
 726
 727   private flushPlayer () {
 728     // Remove player if it exists
 729     if (this.player) {
 730       try {
 731         this.player.dispose()
 732         this.player = undefined
 733       } catch (err) {
 734         console.error('Cannot dispose player.', err)
 735       }
 736     }
 737   }
 738
 739   private buildPlayerManagerOptions (params: {
 740     video: VideoDetails,
 741     videoCaptions: VideoCaption[],
 742     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 743     user?: AuthUser
 744   }) {
 745     const { video, videoCaptions, urlOptions, user } = params
 746     const getStartTime = () => {
 747       const byUrl = urlOptions.startTime !== undefined
 748       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 749
 750       if (byUrl) return timeToInt(urlOptions.startTime)
 751       if (byHistory) return video.userHistory.currentTime
 752
 753       return 0
 754     }
 755
 756     let startTime = getStartTime()
 757
 758     // If we are at the end of the video, reset the timer
 759     if (video.duration - startTime <= 1) startTime = 0
 760
 761     const playerCaptions = videoCaptions.map(c => ({
 762       label: c.language.label,
 763       language: c.language.id,
 764       src: environment.apiUrl + c.captionPath
 765     }))
 766
 767     const options: PeertubePlayerManagerOptions = {
 768       common: {
 769         autoplay: this.isAutoplay(),
 770         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 771
 772         playerElement: this.playerElement,
 773         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 774
 775         videoDuration: video.duration,
 776         enableHotkeys: true,
 777         inactivityTimeout: 2500,
 778         poster: video.previewUrl,
 779
 780         startTime,
 781         stopTime: urlOptions.stopTime,
 782         controls: urlOptions.controls,
 783         muted: urlOptions.muted,
 784         loop: urlOptions.loop,
 785         subtitle: urlOptions.subtitle,
 786
 787         peertubeLink: urlOptions.peertubeLink,
 788
 789         theaterButton: true,
 790         captions: videoCaptions.length !== 0,
 791
 792         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 793           ? this.videoService.getVideoViewUrl(video.uuid)
 794           : null,
 795         embedUrl: video.embedUrl,
 796
 797         isLive: video.isLive,
 798
 799         language: this.localeId,
 800
 801         userWatching: user && user.videosHistoryEnabled === true ? {
 802           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 803           authorizationHeader: this.authService.getRequestHeaderValue()
 804         } : undefined,
 805
 806         serverUrl: environment.apiUrl,
 807
 808         videoCaptions: playerCaptions
 809       },
 810
 811       webtorrent: {
 812         videoFiles: video.files
 813       }
 814     }
 815
 816     let mode: PlayerMode
 817
 818     if (urlOptions.playerMode) {
 819       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 820       else mode = 'webtorrent'
 821     } else {
 822       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 823       else mode = 'webtorrent'
 824     }
 825
 826     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 827     if (typeof TextEncoder === 'undefined') {
 828       mode = 'webtorrent'
 829     }
 830
 831     if (mode === 'p2p-media-loader') {
 832       const hlsPlaylist = video.getHlsPlaylist()
 833
 834       const p2pMediaLoader = {
 835         playlistUrl: hlsPlaylist.playlistUrl,
 836         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 837         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 838         trackerAnnounce: video.trackerUrls,
 839         videoFiles: hlsPlaylist.files
 840       } as P2PMediaLoaderOptions
 841
 842       Object.assign(options, { p2pMediaLoader })
 843     }
 844
 845     return { playerMode: mode, playerOptions: options }
 846   }
 847
 848   private pausePlayer () {
 849     if (!this.player) return
 850
 851     this.player.pause()
 852   }
 853
 854   private resumePlayer () {
 855     if (!this.player) return
 856
 857     this.player.play()
 858   }
 859
 860   private isPlaying () {
 861     if (!this.player) return
 862
 863     return !this.player.paused()
 864   }
 865
 866   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 867     if (!this.liveVideosSub) {
 868       this.liveVideosSub = this.buildLiveEventsSubscription()
 869     }
 870
 871     if (oldVideo && oldVideo.id !== newVideo.id) {
 872       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 873     }
 874
 875     if (!newVideo.isLive) return
 876
 877     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 878   }
 879
 880   private buildLiveEventsSubscription () {
 881     return this.peertubeSocket.getLiveVideosObservable()
 882       .subscribe(({ type, payload }) => {
 883         if (type === 'state-change') return this.handleLiveStateChange(payload.state)
 884         if (type === 'views-change') return this.handleLiveViewsChange(payload.views)
 885       })
 886   }
 887
 888   private handleLiveStateChange (newState: VideoState) {
 889     if (newState !== VideoState.PUBLISHED) return
 890
 891     const videoState = this.video.state.id
 892     if (videoState !== VideoState.WAITING_FOR_LIVE && videoState !== VideoState.LIVE_ENDED) return
 893
 894     console.log('Loading video after live update.')
 895
 896     const videoUUID = this.video.uuid
 897
 898     // Reset to refetch the video
 899     this.video = undefined
 900     this.loadVideo(videoUUID)
 901   }
 902
 903   private handleLiveViewsChange (newViews: number) {
 904     if (!this.video) {
 905       console.error('Cannot update video live views because video is no defined.')
 906       return
 907     }
 908
 909     console.log('Updating live views.')
 910
 911     this.video.views = newViews
 912   }
 913
 914   private initHotkeys () {
 915     this.hotkeys = [
 916       // These hotkeys are managed by the player
 917       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 918       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 919       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 920
 921       new Hotkey('0-9', e => e, undefined, $localize`Skip to a percentage of the video: 0 is 0% and 9 is 90% (requires player focus)`),
 922
 923       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 924       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 925
 926       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 927       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 928
 929       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 930       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 931
 932       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 933     ]
 934
 935     if (this.isUserLoggedIn()) {
 936       this.hotkeys = this.hotkeys.concat([
 937         new Hotkey('shift+l', () => {
 938           this.setLike()
 939           return false
 940         }, undefined, $localize`Like the video`),
 941
 942         new Hotkey('shift+d', () => {
 943           this.setDislike()
 944           return false
 945         }, undefined, $localize`Dislike the video`),
 946
 947         new Hotkey('shift+s', () => {
 948           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 949           return false
 950         }, undefined, $localize`Subscribe to the account`)
 951       ])
 952     }
 953
 954     this.hotkeysService.add(this.hotkeys)
 955   }
 956 }