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.player.currentTime(timestamp)
 362     scrollToTop()
 363   }
 364
 365   isPlaylistAutoPlayEnabled () {
 366     return (
 367       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 368       this.anonymousUser.autoPlayNextVideoPlaylist
 369     )
 370   }
 371
 372   isChannelDisplayNameGeneric () {
 373     const genericChannelDisplayName = [
 374       `Main ${this.video.channel.ownerAccount.name} channel`,
 375       `Default ${this.video.channel.ownerAccount.name} channel`
 376     ]
 377
 378     return genericChannelDisplayName.includes(this.video.channel.displayName)
 379   }
 380
 381   onPlaylistVideoFound (videoId: string) {
 382     this.loadVideo(videoId)
 383   }
 384
 385   private loadVideo (videoId: string) {
 386     // Video did not change
 387     if (this.video && this.video.uuid === videoId) return
 388
 389     if (this.player) this.player.pause()
 390
 391     const videoObs = this.hooks.wrapObsFun(
 392       this.videoService.getVideo.bind(this.videoService),
 393       { videoId },
 394       'video-watch',
 395       'filter:api.video-watch.video.get.params',
 396       'filter:api.video-watch.video.get.result'
 397     )
 398
 399     // Video did change
 400     forkJoin([
 401       videoObs,
 402       this.videoCaptionService.listCaptions(videoId)
 403     ])
 404       .pipe(
 405         // If 401, the video is private or blocked so redirect to 404
 406         catchError(err => {
 407           if (err.body.errorCode === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && err.body.originUrl) {
 408             const search = window.location.search
 409             let originUrl = err.body.originUrl
 410             if (search) originUrl += search
 411
 412             this.confirmService.confirm(
 413               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 414               $localize`Redirection`
 415             ).then(res => {
 416               if (res === false) {
 417                 return this.restExtractor.redirectTo404IfNotFound(err, [
 418                   HttpStatusCode.BAD_REQUEST_400,
 419                   HttpStatusCode.UNAUTHORIZED_401,
 420                   HttpStatusCode.FORBIDDEN_403,
 421                   HttpStatusCode.NOT_FOUND_404
 422                 ])
 423               }
 424
 425               return window.location.href = originUrl
 426             })
 427           }
 428
 429           return this.restExtractor.redirectTo404IfNotFound(err, [
 430             HttpStatusCode.BAD_REQUEST_400,
 431             HttpStatusCode.UNAUTHORIZED_401,
 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 401, the video is private or blocked so redirect to 404
 466         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [
 467           HttpStatusCode.BAD_REQUEST_400,
 468           HttpStatusCode.UNAUTHORIZED_401,
 469           HttpStatusCode.FORBIDDEN_403,
 470           HttpStatusCode.NOT_FOUND_404
 471         ]))
 472       )
 473       .subscribe(playlist => {
 474         this.playlist = playlist
 475
 476         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 477       })
 478   }
 479
 480   private updateVideoDescription (description: string) {
 481     this.video.description = description
 482     this.setVideoDescriptionHTML()
 483       .catch(err => console.error(err))
 484   }
 485
 486   private async setVideoDescriptionHTML () {
 487     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 488     this.videoHTMLDescription = await this.markdownService.processVideoTimestamps(html)
 489   }
 490
 491   private setVideoLikesBarTooltipText () {
 492     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 493   }
 494
 495   private handleError (err: any) {
 496     const errorMessage: string = typeof err === 'string' ? err : err.message
 497     if (!errorMessage) return
 498
 499     // Display a message in the video player instead of a notification
 500     if (errorMessage.indexOf('from xs param') !== -1) {
 501       this.flushPlayer()
 502       this.remoteServerDown = true
 503       this.changeDetector.detectChanges()
 504
 505       return
 506     }
 507
 508     this.notifier.error(errorMessage)
 509   }
 510
 511   private checkUserRating () {
 512     // Unlogged users do not have ratings
 513     if (this.isUserLoggedIn() === false) return
 514
 515     this.videoService.getUserVideoRating(this.video.id)
 516         .subscribe(
 517           ratingObject => {
 518             if (ratingObject) {
 519               this.userRating = ratingObject.rating
 520             }
 521           },
 522
 523           err => this.notifier.error(err.message)
 524         )
 525   }
 526
 527   private async onVideoFetched (
 528     video: VideoDetails,
 529     videoCaptions: VideoCaption[],
 530     urlOptions: URLOptions
 531   ) {
 532     this.subscribeToLiveEventsIfNeeded(this.video, video)
 533
 534     this.video = video
 535     this.videoCaptions = videoCaptions
 536
 537     // Re init attributes
 538     this.descriptionLoading = false
 539     this.completeDescriptionShown = false
 540     this.remoteServerDown = false
 541     this.currentTime = undefined
 542
 543     if (this.isVideoBlur(this.video)) {
 544       const res = await this.confirmService.confirm(
 545         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 546         $localize`Mature or explicit content`
 547       )
 548       if (res === false) return this.location.back()
 549     }
 550
 551     const videoState = this.video.state.id
 552     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) return
 553
 554     // Flush old player if needed
 555     this.flushPlayer()
 556
 557     // Build video element, because videojs removes it on dispose
 558     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 559     this.playerElement = document.createElement('video')
 560     this.playerElement.className = 'video-js vjs-peertube-skin'
 561     this.playerElement.setAttribute('playsinline', 'true')
 562     playerElementWrapper.appendChild(this.playerElement)
 563
 564     const params = {
 565       video: this.video,
 566       videoCaptions,
 567       urlOptions,
 568       user: this.user
 569     }
 570     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 571       this.buildPlayerManagerOptions.bind(this),
 572       params,
 573       'video-watch',
 574       'filter:internal.video-watch.player.build-options.params',
 575       'filter:internal.video-watch.player.build-options.result'
 576     )
 577
 578     this.zone.runOutsideAngular(async () => {
 579       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 580
 581       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 582
 583       this.player.on('timeupdate', () => {
 584         this.currentTime = Math.floor(this.player.currentTime())
 585       })
 586
 587       /**
 588        * replaces this.player.one('ended')
 589        * 'condition()': true to make the upnext functionality trigger,
 590        *                false to disable the upnext functionality
 591        * go to the next video in 'condition()' if you don't want of the timer.
 592        * 'next': function triggered at the end of the timer.
 593        * 'suspended': function used at each clic of the timer checking if we need
 594        * to reset progress and wait until 'suspended' becomes truthy again.
 595        */
 596       this.player.upnext({
 597         timeout: 10000, // 10s
 598         headText: $localize`Up Next`,
 599         cancelText: $localize`Cancel`,
 600         suspendedText: $localize`Autoplay is suspended`,
 601         getTitle: () => this.nextVideoTitle,
 602         next: () => this.zone.run(() => this.autoplayNext()),
 603         condition: () => {
 604           if (this.playlist) {
 605             if (this.isPlaylistAutoPlayEnabled()) {
 606               // upnext will not trigger, and instead the next video will play immediately
 607               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 608             }
 609           } else if (this.isAutoPlayEnabled()) {
 610             return true // upnext will trigger
 611           }
 612           return false // upnext will not trigger, and instead leave the video stopping
 613         },
 614         suspended: () => {
 615           return (
 616             !isXPercentInViewport(this.player.el(), 80) ||
 617             !document.getElementById('content').contains(document.activeElement)
 618           )
 619         }
 620       })
 621
 622       this.player.one('stopped', () => {
 623         if (this.playlist) {
 624           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 625         }
 626       })
 627
 628       this.player.one('ended', () => {
 629         if (this.video.isLive) {
 630           this.video.state.id = VideoState.LIVE_ENDED
 631         }
 632       })
 633
 634       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 635         this.zone.run(() => this.theaterEnabled = enabled)
 636       })
 637
 638       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 639     })
 640
 641     this.setVideoDescriptionHTML()
 642     this.setVideoLikesBarTooltipText()
 643
 644     this.setOpenGraphTags()
 645     this.checkUserRating()
 646
 647     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', { videojs })
 648   }
 649
 650   private autoplayNext () {
 651     if (this.playlist) {
 652       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 653     } else if (this.nextVideoUuid) {
 654       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 655     }
 656   }
 657
 658   private setRating (nextRating: UserVideoRateType) {
 659     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 660       like: this.videoService.setVideoLike,
 661       dislike: this.videoService.setVideoDislike,
 662       none: this.videoService.unsetVideoLike
 663     }
 664
 665     ratingMethods[nextRating].call(this.videoService, this.video.id)
 666           .subscribe(
 667             () => {
 668               // Update the video like attribute
 669               this.updateVideoRating(this.userRating, nextRating)
 670               this.userRating = nextRating
 671             },
 672
 673             (err: { message: string }) => this.notifier.error(err.message)
 674           )
 675   }
 676
 677   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 678     let likesToIncrement = 0
 679     let dislikesToIncrement = 0
 680
 681     if (oldRating) {
 682       if (oldRating === 'like') likesToIncrement--
 683       if (oldRating === 'dislike') dislikesToIncrement--
 684     }
 685
 686     if (newRating === 'like') likesToIncrement++
 687     if (newRating === 'dislike') dislikesToIncrement++
 688
 689     this.video.likes += likesToIncrement
 690     this.video.dislikes += dislikesToIncrement
 691
 692     this.video.buildLikeAndDislikePercents()
 693     this.setVideoLikesBarTooltipText()
 694   }
 695
 696   private setOpenGraphTags () {
 697     this.metaService.setTitle(this.video.name)
 698
 699     this.metaService.setTag('og:type', 'video')
 700
 701     this.metaService.setTag('og:title', this.video.name)
 702     this.metaService.setTag('name', this.video.name)
 703
 704     this.metaService.setTag('og:description', this.video.description)
 705     this.metaService.setTag('description', this.video.description)
 706
 707     this.metaService.setTag('og:image', this.video.previewPath)
 708
 709     this.metaService.setTag('og:duration', this.video.duration.toString())
 710
 711     this.metaService.setTag('og:site_name', 'PeerTube')
 712
 713     this.metaService.setTag('og:url', window.location.href)
 714     this.metaService.setTag('url', window.location.href)
 715   }
 716
 717   private isAutoplay () {
 718     // We'll jump to the thread id, so do not play the video
 719     if (this.route.snapshot.params['threadId']) return false
 720
 721     // Otherwise true by default
 722     if (!this.user) return true
 723
 724     // Be sure the autoPlay is set to false
 725     return this.user.autoPlayVideo !== false
 726   }
 727
 728   private flushPlayer () {
 729     // Remove player if it exists
 730     if (this.player) {
 731       try {
 732         this.player.dispose()
 733         this.player = undefined
 734       } catch (err) {
 735         console.error('Cannot dispose player.', err)
 736       }
 737     }
 738   }
 739
 740   private buildPlayerManagerOptions (params: {
 741     video: VideoDetails,
 742     videoCaptions: VideoCaption[],
 743     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 744     user?: AuthUser
 745   }) {
 746     const { video, videoCaptions, urlOptions, user } = params
 747     const getStartTime = () => {
 748       const byUrl = urlOptions.startTime !== undefined
 749       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 750
 751       if (byUrl) return timeToInt(urlOptions.startTime)
 752       if (byHistory) return video.userHistory.currentTime
 753
 754       return 0
 755     }
 756
 757     let startTime = getStartTime()
 758
 759     // If we are at the end of the video, reset the timer
 760     if (video.duration - startTime <= 1) startTime = 0
 761
 762     const playerCaptions = videoCaptions.map(c => ({
 763       label: c.language.label,
 764       language: c.language.id,
 765       src: environment.apiUrl + c.captionPath
 766     }))
 767
 768     const options: PeertubePlayerManagerOptions = {
 769       common: {
 770         autoplay: this.isAutoplay(),
 771         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 772
 773         playerElement: this.playerElement,
 774         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 775
 776         videoDuration: video.duration,
 777         enableHotkeys: true,
 778         inactivityTimeout: 2500,
 779         poster: video.previewUrl,
 780
 781         startTime,
 782         stopTime: urlOptions.stopTime,
 783         controls: urlOptions.controls,
 784         muted: urlOptions.muted,
 785         loop: urlOptions.loop,
 786         subtitle: urlOptions.subtitle,
 787
 788         peertubeLink: urlOptions.peertubeLink,
 789
 790         theaterButton: true,
 791         captions: videoCaptions.length !== 0,
 792
 793         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 794           ? this.videoService.getVideoViewUrl(video.uuid)
 795           : null,
 796         embedUrl: video.embedUrl,
 797
 798         isLive: video.isLive,
 799
 800         language: this.localeId,
 801
 802         userWatching: user && user.videosHistoryEnabled === true ? {
 803           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 804           authorizationHeader: this.authService.getRequestHeaderValue()
 805         } : undefined,
 806
 807         serverUrl: environment.apiUrl,
 808
 809         videoCaptions: playerCaptions
 810       },
 811
 812       webtorrent: {
 813         videoFiles: video.files
 814       }
 815     }
 816
 817     let mode: PlayerMode
 818
 819     if (urlOptions.playerMode) {
 820       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 821       else mode = 'webtorrent'
 822     } else {
 823       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 824       else mode = 'webtorrent'
 825     }
 826
 827     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 828     if (typeof TextEncoder === 'undefined') {
 829       mode = 'webtorrent'
 830     }
 831
 832     if (mode === 'p2p-media-loader') {
 833       const hlsPlaylist = video.getHlsPlaylist()
 834
 835       const p2pMediaLoader = {
 836         playlistUrl: hlsPlaylist.playlistUrl,
 837         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 838         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 839         trackerAnnounce: video.trackerUrls,
 840         videoFiles: hlsPlaylist.files
 841       } as P2PMediaLoaderOptions
 842
 843       Object.assign(options, { p2pMediaLoader })
 844     }
 845
 846     return { playerMode: mode, playerOptions: options }
 847   }
 848
 849   private pausePlayer () {
 850     if (!this.player) return
 851
 852     this.player.pause()
 853   }
 854
 855   private resumePlayer () {
 856     if (!this.player) return
 857
 858     this.player.play()
 859   }
 860
 861   private isPlaying () {
 862     if (!this.player) return
 863
 864     return !this.player.paused()
 865   }
 866
 867   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 868     if (!this.liveVideosSub) {
 869       this.liveVideosSub = this.buildLiveEventsSubscription()
 870     }
 871
 872     if (oldVideo && oldVideo.id !== newVideo.id) {
 873       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 874     }
 875
 876     if (!newVideo.isLive) return
 877
 878     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 879   }
 880
 881   private buildLiveEventsSubscription () {
 882     return this.peertubeSocket.getLiveVideosObservable()
 883       .subscribe(({ type, payload }) => {
 884         if (type === 'state-change') return this.handleLiveStateChange(payload.state)
 885         if (type === 'views-change') return this.handleLiveViewsChange(payload.views)
 886       })
 887   }
 888
 889   private handleLiveStateChange (newState: VideoState) {
 890     if (newState !== VideoState.PUBLISHED) return
 891
 892     const videoState = this.video.state.id
 893     if (videoState !== VideoState.WAITING_FOR_LIVE && videoState !== VideoState.LIVE_ENDED) return
 894
 895     console.log('Loading video after live update.')
 896
 897     const videoUUID = this.video.uuid
 898
 899     // Reset to refetch the video
 900     this.video = undefined
 901     this.loadVideo(videoUUID)
 902   }
 903
 904   private handleLiveViewsChange (newViews: number) {
 905     if (!this.video) {
 906       console.error('Cannot update video live views because video is no defined.')
 907       return
 908     }
 909
 910     this.video.views = newViews
 911   }
 912
 913   private initHotkeys () {
 914     this.hotkeys = [
 915       // These hotkeys are managed by the player
 916       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 917       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 918       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 919
 920       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)`),
 921
 922       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 923       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 924
 925       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 926       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 927
 928       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 929       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 930
 931       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 932     ]
 933
 934     if (this.isUserLoggedIn()) {
 935       this.hotkeys = this.hotkeys.concat([
 936         new Hotkey('shift+l', () => {
 937           this.setLike()
 938           return false
 939         }, undefined, $localize`Like the video`),
 940
 941         new Hotkey('shift+d', () => {
 942           this.setDislike()
 943           return false
 944         }, undefined, $localize`Dislike the video`),
 945
 946         new Hotkey('shift+s', () => {
 947           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 948           return false
 949         }, undefined, $localize`Subscribe to the account`)
 950       ])
 951     }
 952
 953     this.hotkeysService.add(this.hotkeys)
 954   }
 955 }