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   ScreenService,
  16   ServerService,
  17   UserService
  18 } from '@app/core'
  19 import { HooksService } from '@app/core/plugins/hooks.service'
  20 import { RedirectService } from '@app/core/routing/redirect.service'
  21 import { isXPercentInViewport, scrollToTop } from '@app/helpers'
  22 import { Video, VideoCaptionService, VideoDetails, VideoService } from '@app/shared/shared-main'
  23 import { VideoShareComponent } from '@app/shared/shared-share-modal'
  24 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
  25 import { VideoActionsDisplayType, VideoDownloadComponent } from '@app/shared/shared-video-miniature'
  26 import { VideoPlaylist, VideoPlaylistService } from '@app/shared/shared-video-playlist'
  27 import { MetaService } from '@ngx-meta/core'
  28 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  29 import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
  30 import { ServerConfig, ServerErrorCode, UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '@shared/models'
  31 import { getStoredP2PEnabled, getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
  32 import {
  33   CustomizationOptions,
  34   P2PMediaLoaderOptions,
  35   PeertubePlayerManager,
  36   PeertubePlayerManagerOptions,
  37   PlayerMode,
  38   videojs
  39 } from '../../../assets/player/peertube-player-manager'
  40 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  41 import { environment } from '../../../environments/environment'
  42 import { VideoSupportComponent } from './modal/video-support.component'
  43 import { VideoWatchPlaylistComponent } from './video-watch-playlist.component'
  44
  45 type URLOptions = CustomizationOptions & { playerMode: PlayerMode }
  46
  47 @Component({
  48   selector: 'my-video-watch',
  49   templateUrl: './video-watch.component.html',
  50   styleUrls: [ './video-watch.component.scss' ]
  51 })
  52 export class VideoWatchComponent implements OnInit, OnDestroy {
  53   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  54
  55   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  56   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  57   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  58   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  59   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  60
  61   player: any
  62   playerElement: HTMLVideoElement
  63
  64   theaterEnabled = false
  65
  66   userRating: UserVideoRateType = null
  67
  68   playerPlaceholderImgSrc: string
  69
  70   video: VideoDetails = null
  71   videoCaptions: VideoCaption[] = []
  72
  73   playlistPosition: number
  74   playlist: VideoPlaylist = null
  75
  76   descriptionLoading = false
  77   completeDescriptionShown = false
  78   completeVideoDescription: string
  79   shortVideoDescription: string
  80   videoHTMLDescription = ''
  81
  82   likesBarTooltipText = ''
  83
  84   hasAlreadyAcceptedPrivacyConcern = false
  85   remoteServerDown = false
  86
  87   hotkeys: Hotkey[] = []
  88
  89   tooltipLike = ''
  90   tooltipDislike = ''
  91   tooltipSupport = ''
  92   tooltipSaveToPlaylist = ''
  93
  94   videoActionsOptions: VideoActionsDisplayType = {
  95     playlist: false,
  96     download: true,
  97     update: true,
  98     blacklist: true,
  99     delete: true,
 100     report: true,
 101     duplicate: true,
 102     mute: true,
 103     liveInfo: true
 104   }
 105
 106   private nextVideoUuid = ''
 107   private nextVideoTitle = ''
 108   private currentTime: number
 109   private paramsSub: Subscription
 110   private queryParamsSub: Subscription
 111   private configSub: Subscription
 112   private liveVideosSub: Subscription
 113
 114   private serverConfig: ServerConfig
 115
 116   constructor (
 117     private elementRef: ElementRef,
 118     private changeDetector: ChangeDetectorRef,
 119     private route: ActivatedRoute,
 120     private router: Router,
 121     private videoService: VideoService,
 122     private playlistService: VideoPlaylistService,
 123     private confirmService: ConfirmService,
 124     private metaService: MetaService,
 125     private authService: AuthService,
 126     private userService: UserService,
 127     private serverService: ServerService,
 128     private restExtractor: RestExtractor,
 129     private notifier: Notifier,
 130     private markdownService: MarkdownService,
 131     private zone: NgZone,
 132     private redirectService: RedirectService,
 133     private videoCaptionService: VideoCaptionService,
 134     private hotkeysService: HotkeysService,
 135     private hooks: HooksService,
 136     private peertubeSocket: PeerTubeSocket,
 137     private screenService: ScreenService,
 138     private location: PlatformLocation,
 139     @Inject(LOCALE_ID) private localeId: string
 140   ) { }
 141
 142   get user () {
 143     return this.authService.getUser()
 144   }
 145
 146   get anonymousUser () {
 147     return this.userService.getAnonymousUser()
 148   }
 149
 150   async ngOnInit () {
 151     // Hide the tooltips for unlogged users in mobile view, this adds confusion with the popover
 152     if (this.user || !this.screenService.isInMobileView()) {
 153       this.tooltipLike = $localize`Like this video`
 154       this.tooltipDislike = $localize`Dislike this video`
 155       this.tooltipSupport = $localize`Support options for this video`
 156       this.tooltipSaveToPlaylist = $localize`Save to playlist`
 157     }
 158
 159     PeertubePlayerManager.initState()
 160
 161     this.serverConfig = this.serverService.getTmpConfig()
 162
 163     this.configSub = this.serverService.getConfig()
 164         .subscribe(config => {
 165           this.serverConfig = config
 166
 167           if (
 168             isWebRTCDisabled() ||
 169             this.serverConfig.tracker.enabled === false ||
 170             getStoredP2PEnabled() === false ||
 171             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 172           ) {
 173             this.hasAlreadyAcceptedPrivacyConcern = true
 174           }
 175         })
 176
 177     this.paramsSub = this.route.params.subscribe(routeParams => {
 178       const videoId = routeParams[ 'videoId' ]
 179       if (videoId) this.loadVideo(videoId)
 180
 181       const playlistId = routeParams[ 'playlistId' ]
 182       if (playlistId) this.loadPlaylist(playlistId)
 183     })
 184
 185     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 186       this.playlistPosition = queryParams[ 'playlistPosition' ]
 187       this.videoWatchPlaylist.updatePlaylistIndex(this.playlistPosition)
 188
 189       const start = queryParams[ 'start' ]
 190       if (this.player && start) this.player.currentTime(parseInt(start, 10))
 191     })
 192
 193     this.initHotkeys()
 194
 195     this.theaterEnabled = getStoredTheater()
 196
 197     this.hooks.runAction('action:video-watch.init', 'video-watch')
 198   }
 199
 200   ngOnDestroy () {
 201     this.flushPlayer()
 202
 203     // Unsubscribe subscriptions
 204     if (this.paramsSub) this.paramsSub.unsubscribe()
 205     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 206     if (this.configSub) this.configSub.unsubscribe()
 207     if (this.liveVideosSub) this.liveVideosSub.unsubscribe()
 208
 209     // Unbind hotkeys
 210     this.hotkeysService.remove(this.hotkeys)
 211   }
 212
 213   setLike () {
 214     if (this.isUserLoggedIn() === false) return
 215
 216     // Already liked this video
 217     if (this.userRating === 'like') this.setRating('none')
 218     else this.setRating('like')
 219   }
 220
 221   setDislike () {
 222     if (this.isUserLoggedIn() === false) return
 223
 224     // Already disliked this video
 225     if (this.userRating === 'dislike') this.setRating('none')
 226     else this.setRating('dislike')
 227   }
 228
 229   getRatePopoverText () {
 230     if (this.isUserLoggedIn()) return undefined
 231
 232     return $localize`You need to be <a href="/login">logged in</a> to rate this video.`
 233   }
 234
 235   showMoreDescription () {
 236     if (this.completeVideoDescription === undefined) {
 237       return this.loadCompleteDescription()
 238     }
 239
 240     this.updateVideoDescription(this.completeVideoDescription)
 241     this.completeDescriptionShown = true
 242   }
 243
 244   showLessDescription () {
 245     this.updateVideoDescription(this.shortVideoDescription)
 246     this.completeDescriptionShown = false
 247   }
 248
 249   showDownloadModal () {
 250     this.videoDownloadModal.show(this.video, this.videoCaptions)
 251   }
 252
 253   isVideoDownloadable () {
 254     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled && !this.video.isLive
 255   }
 256
 257   loadCompleteDescription () {
 258     this.descriptionLoading = true
 259
 260     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 261         .subscribe(
 262           description => {
 263             this.completeDescriptionShown = true
 264             this.descriptionLoading = false
 265
 266             this.shortVideoDescription = this.video.description
 267             this.completeVideoDescription = description
 268
 269             this.updateVideoDescription(this.completeVideoDescription)
 270           },
 271
 272           error => {
 273             this.descriptionLoading = false
 274             this.notifier.error(error.message)
 275           }
 276         )
 277   }
 278
 279   showSupportModal () {
 280     // Check video was playing before opening support modal
 281     const isVideoPlaying = this.isPlaying()
 282
 283     this.pausePlayer()
 284
 285     const modalRef = this.videoSupportModal.show()
 286
 287     modalRef.result.then(() => {
 288       if (isVideoPlaying) {
 289         this.resumePlayer()
 290       }
 291     })
 292   }
 293
 294   showShareModal () {
 295     this.pausePlayer()
 296
 297     this.videoShareModal.show(this.currentTime, this.videoWatchPlaylist.currentPlaylistPosition)
 298   }
 299
 300   isUserLoggedIn () {
 301     return this.authService.isLoggedIn()
 302   }
 303
 304   getVideoTags () {
 305     if (!this.video || Array.isArray(this.video.tags) === false) return []
 306
 307     return this.video.tags
 308   }
 309
 310   onRecommendations (videos: Video[]) {
 311     if (videos.length > 0) {
 312       // The recommended videos's first element should be the next video
 313       const video = videos[0]
 314       this.nextVideoUuid = video.uuid
 315       this.nextVideoTitle = video.name
 316     }
 317   }
 318
 319   onModalOpened () {
 320     this.pausePlayer()
 321   }
 322
 323   onVideoRemoved () {
 324     this.redirectService.redirectToHomepage()
 325   }
 326
 327   declinedPrivacyConcern () {
 328     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'false')
 329     this.hasAlreadyAcceptedPrivacyConcern = false
 330   }
 331
 332   acceptedPrivacyConcern () {
 333     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 334     this.hasAlreadyAcceptedPrivacyConcern = true
 335   }
 336
 337   isVideoToTranscode () {
 338     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 339   }
 340
 341   isVideoToImport () {
 342     return this.video && this.video.state.id === VideoState.TO_IMPORT
 343   }
 344
 345   hasVideoScheduledPublication () {
 346     return this.video && this.video.scheduledUpdate !== undefined
 347   }
 348
 349   isLive () {
 350     return !!(this.video?.isLive)
 351   }
 352
 353   isWaitingForLive () {
 354     return this.video?.state.id === VideoState.WAITING_FOR_LIVE
 355   }
 356
 357   isLiveEnded () {
 358     return this.video?.state.id === VideoState.LIVE_ENDED
 359   }
 360
 361   isVideoBlur (video: Video) {
 362     return video.isVideoNSFWForUser(this.user, this.serverConfig)
 363   }
 364
 365   isAutoPlayEnabled () {
 366     return (
 367       (this.user && this.user.autoPlayNextVideo) ||
 368       this.anonymousUser.autoPlayNextVideo
 369     )
 370   }
 371
 372   handleTimestampClicked (timestamp: number) {
 373     if (!this.player || this.video.isLive) return
 374
 375     this.player.currentTime(timestamp)
 376     scrollToTop()
 377   }
 378
 379   isPlaylistAutoPlayEnabled () {
 380     return (
 381       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 382       this.anonymousUser.autoPlayNextVideoPlaylist
 383     )
 384   }
 385
 386   isChannelDisplayNameGeneric () {
 387     const genericChannelDisplayName = [
 388       `Main ${this.video.channel.ownerAccount.name} channel`,
 389       `Default ${this.video.channel.ownerAccount.name} channel`
 390     ]
 391
 392     return genericChannelDisplayName.includes(this.video.channel.displayName)
 393   }
 394
 395   onPlaylistVideoFound (videoId: string) {
 396     this.loadVideo(videoId)
 397   }
 398
 399   private loadVideo (videoId: string) {
 400     // Video did not change
 401     if (this.video && this.video.uuid === videoId) return
 402
 403     if (this.player) this.player.pause()
 404
 405     const videoObs = this.hooks.wrapObsFun(
 406       this.videoService.getVideo.bind(this.videoService),
 407       { videoId },
 408       'video-watch',
 409       'filter:api.video-watch.video.get.params',
 410       'filter:api.video-watch.video.get.result'
 411     )
 412
 413     // Video did change
 414     forkJoin([
 415       videoObs,
 416       this.videoCaptionService.listCaptions(videoId)
 417     ])
 418       .pipe(
 419         // If 400, 403 or 404, the video is private or blocked so redirect to 404
 420         catchError(err => {
 421           if (err.body.errorCode === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && err.body.originUrl) {
 422             const search = window.location.search
 423             let originUrl = err.body.originUrl
 424             if (search) originUrl += search
 425
 426             this.confirmService.confirm(
 427               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 428               $localize`Redirection`
 429             ).then(res => {
 430               if (res === false) {
 431                 return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 432                   HttpStatusCode.BAD_REQUEST_400,
 433                   HttpStatusCode.FORBIDDEN_403,
 434                   HttpStatusCode.NOT_FOUND_404
 435                 ])
 436               }
 437
 438               return window.location.href = originUrl
 439             })
 440           }
 441
 442           return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 443             HttpStatusCode.BAD_REQUEST_400,
 444             HttpStatusCode.FORBIDDEN_403,
 445             HttpStatusCode.NOT_FOUND_404
 446           ])
 447         })
 448       )
 449       .subscribe(([ video, captionsResult ]) => {
 450         const queryParams = this.route.snapshot.queryParams
 451
 452         const urlOptions = {
 453           resume: queryParams.resume,
 454
 455           startTime: queryParams.start,
 456           stopTime: queryParams.stop,
 457
 458           muted: queryParams.muted,
 459           loop: queryParams.loop,
 460           subtitle: queryParams.subtitle,
 461
 462           playerMode: queryParams.mode,
 463           peertubeLink: false
 464         }
 465
 466         this.onVideoFetched(video, captionsResult.data, urlOptions)
 467             .catch(err => this.handleError(err))
 468       })
 469   }
 470
 471   private loadPlaylist (playlistId: string) {
 472     // Playlist did not change
 473     if (this.playlist && this.playlist.uuid === playlistId) return
 474
 475     this.playlistService.getVideoPlaylist(playlistId)
 476       .pipe(
 477         // If 400 or 403, the video is private or blocked so redirect to 404
 478         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 479           HttpStatusCode.BAD_REQUEST_400,
 480           HttpStatusCode.FORBIDDEN_403,
 481           HttpStatusCode.NOT_FOUND_404
 482         ]))
 483       )
 484       .subscribe(playlist => {
 485         this.playlist = playlist
 486
 487         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 488       })
 489   }
 490
 491   private updateVideoDescription (description: string) {
 492     this.video.description = description
 493     this.setVideoDescriptionHTML()
 494       .catch(err => console.error(err))
 495   }
 496
 497   private async setVideoDescriptionHTML () {
 498     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 499     this.videoHTMLDescription = await this.markdownService.processVideoTimestamps(html)
 500   }
 501
 502   private setVideoLikesBarTooltipText () {
 503     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 504   }
 505
 506   private handleError (err: any) {
 507     const errorMessage: string = typeof err === 'string' ? err : err.message
 508     if (!errorMessage) return
 509
 510     // Display a message in the video player instead of a notification
 511     if (errorMessage.indexOf('from xs param') !== -1) {
 512       this.flushPlayer()
 513       this.remoteServerDown = true
 514       this.changeDetector.detectChanges()
 515
 516       return
 517     }
 518
 519     this.notifier.error(errorMessage)
 520   }
 521
 522   private checkUserRating () {
 523     // Unlogged users do not have ratings
 524     if (this.isUserLoggedIn() === false) return
 525
 526     this.videoService.getUserVideoRating(this.video.id)
 527         .subscribe(
 528           ratingObject => {
 529             if (ratingObject) {
 530               this.userRating = ratingObject.rating
 531             }
 532           },
 533
 534           err => this.notifier.error(err.message)
 535         )
 536   }
 537
 538   private async onVideoFetched (
 539     video: VideoDetails,
 540     videoCaptions: VideoCaption[],
 541     urlOptions: URLOptions
 542   ) {
 543     this.subscribeToLiveEventsIfNeeded(this.video, video)
 544
 545     this.video = video
 546     this.videoCaptions = videoCaptions
 547
 548     // Re init attributes
 549     this.playerPlaceholderImgSrc = undefined
 550     this.descriptionLoading = false
 551     this.completeDescriptionShown = false
 552     this.completeVideoDescription = undefined
 553     this.remoteServerDown = false
 554     this.currentTime = undefined
 555
 556     if (this.isVideoBlur(this.video)) {
 557       const res = await this.confirmService.confirm(
 558         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 559         $localize`Mature or explicit content`
 560       )
 561       if (res === false) return this.location.back()
 562     }
 563
 564     this.buildPlayer(urlOptions)
 565       .catch(err => console.error('Cannot build the player', err))
 566
 567     this.setVideoDescriptionHTML()
 568     this.setVideoLikesBarTooltipText()
 569
 570     this.setOpenGraphTags()
 571     this.checkUserRating()
 572
 573     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', { videojs })
 574   }
 575
 576   private async buildPlayer (urlOptions: URLOptions) {
 577     // Flush old player if needed
 578     this.flushPlayer()
 579
 580     const videoState = this.video.state.id
 581     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) {
 582       this.playerPlaceholderImgSrc = this.video.previewPath
 583       return
 584     }
 585
 586     // Build video element, because videojs removes it on dispose
 587     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 588     this.playerElement = document.createElement('video')
 589     this.playerElement.className = 'video-js vjs-peertube-skin'
 590     this.playerElement.setAttribute('playsinline', 'true')
 591     playerElementWrapper.appendChild(this.playerElement)
 592
 593     const params = {
 594       video: this.video,
 595       videoCaptions: this.videoCaptions,
 596       urlOptions,
 597       user: this.user
 598     }
 599     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 600       this.buildPlayerManagerOptions.bind(this),
 601       params,
 602       'video-watch',
 603       'filter:internal.video-watch.player.build-options.params',
 604       'filter:internal.video-watch.player.build-options.result'
 605     )
 606
 607     this.zone.runOutsideAngular(async () => {
 608       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 609
 610       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 611
 612       this.player.on('timeupdate', () => {
 613         this.currentTime = Math.floor(this.player.currentTime())
 614       })
 615
 616       /**
 617        * replaces this.player.one('ended')
 618        * 'condition()': true to make the upnext functionality trigger,
 619        *                false to disable the upnext functionality
 620        * go to the next video in 'condition()' if you don't want of the timer.
 621        * 'next': function triggered at the end of the timer.
 622        * 'suspended': function used at each clic of the timer checking if we need
 623        * to reset progress and wait until 'suspended' becomes truthy again.
 624        */
 625       this.player.upnext({
 626         timeout: 10000, // 10s
 627         headText: $localize`Up Next`,
 628         cancelText: $localize`Cancel`,
 629         suspendedText: $localize`Autoplay is suspended`,
 630         getTitle: () => this.nextVideoTitle,
 631         next: () => this.zone.run(() => this.autoplayNext()),
 632         condition: () => {
 633           if (this.playlist) {
 634             if (this.isPlaylistAutoPlayEnabled()) {
 635               // upnext will not trigger, and instead the next video will play immediately
 636               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 637             }
 638           } else if (this.isAutoPlayEnabled()) {
 639             return true // upnext will trigger
 640           }
 641           return false // upnext will not trigger, and instead leave the video stopping
 642         },
 643         suspended: () => {
 644           return (
 645             !isXPercentInViewport(this.player.el(), 80) ||
 646             !document.getElementById('content').contains(document.activeElement)
 647           )
 648         }
 649       })
 650
 651       this.player.one('stopped', () => {
 652         if (this.playlist) {
 653           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 654         }
 655       })
 656
 657       this.player.one('ended', () => {
 658         if (this.video.isLive) {
 659           this.video.state.id = VideoState.LIVE_ENDED
 660         }
 661       })
 662
 663       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 664         this.zone.run(() => this.theaterEnabled = enabled)
 665       })
 666
 667       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 668     })
 669   }
 670
 671   private autoplayNext () {
 672     if (this.playlist) {
 673       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 674     } else if (this.nextVideoUuid) {
 675       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 676     }
 677   }
 678
 679   private setRating (nextRating: UserVideoRateType) {
 680     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 681       like: this.videoService.setVideoLike,
 682       dislike: this.videoService.setVideoDislike,
 683       none: this.videoService.unsetVideoLike
 684     }
 685
 686     ratingMethods[nextRating].call(this.videoService, this.video.id)
 687           .subscribe(
 688             () => {
 689               // Update the video like attribute
 690               this.updateVideoRating(this.userRating, nextRating)
 691               this.userRating = nextRating
 692             },
 693
 694             (err: { message: string }) => this.notifier.error(err.message)
 695           )
 696   }
 697
 698   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 699     let likesToIncrement = 0
 700     let dislikesToIncrement = 0
 701
 702     if (oldRating) {
 703       if (oldRating === 'like') likesToIncrement--
 704       if (oldRating === 'dislike') dislikesToIncrement--
 705     }
 706
 707     if (newRating === 'like') likesToIncrement++
 708     if (newRating === 'dislike') dislikesToIncrement++
 709
 710     this.video.likes += likesToIncrement
 711     this.video.dislikes += dislikesToIncrement
 712
 713     this.video.buildLikeAndDislikePercents()
 714     this.setVideoLikesBarTooltipText()
 715   }
 716
 717   private setOpenGraphTags () {
 718     this.metaService.setTitle(this.video.name)
 719
 720     this.metaService.setTag('og:type', 'video')
 721
 722     this.metaService.setTag('og:title', this.video.name)
 723     this.metaService.setTag('name', this.video.name)
 724
 725     this.metaService.setTag('og:description', this.video.description)
 726     this.metaService.setTag('description', this.video.description)
 727
 728     this.metaService.setTag('og:image', this.video.previewPath)
 729
 730     this.metaService.setTag('og:duration', this.video.duration.toString())
 731
 732     this.metaService.setTag('og:site_name', 'PeerTube')
 733
 734     this.metaService.setTag('og:url', window.location.href)
 735     this.metaService.setTag('url', window.location.href)
 736   }
 737
 738   private isAutoplay () {
 739     // We'll jump to the thread id, so do not play the video
 740     if (this.route.snapshot.params['threadId']) return false
 741
 742     // Otherwise true by default
 743     if (!this.user) return true
 744
 745     // Be sure the autoPlay is set to false
 746     return this.user.autoPlayVideo !== false
 747   }
 748
 749   private flushPlayer () {
 750     // Remove player if it exists
 751     if (this.player) {
 752       try {
 753         this.player.dispose()
 754         this.player = undefined
 755       } catch (err) {
 756         console.error('Cannot dispose player.', err)
 757       }
 758     }
 759   }
 760
 761   private buildPlayerManagerOptions (params: {
 762     video: VideoDetails,
 763     videoCaptions: VideoCaption[],
 764     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 765     user?: AuthUser
 766   }) {
 767     const { video, videoCaptions, urlOptions, user } = params
 768     const getStartTime = () => {
 769       const byUrl = urlOptions.startTime !== undefined
 770       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 771
 772       if (byUrl) return timeToInt(urlOptions.startTime)
 773       if (byHistory) return video.userHistory.currentTime
 774
 775       return 0
 776     }
 777
 778     let startTime = getStartTime()
 779
 780     // If we are at the end of the video, reset the timer
 781     if (video.duration - startTime <= 1) startTime = 0
 782
 783     const playerCaptions = videoCaptions.map(c => ({
 784       label: c.language.label,
 785       language: c.language.id,
 786       src: environment.apiUrl + c.captionPath
 787     }))
 788
 789     const options: PeertubePlayerManagerOptions = {
 790       common: {
 791         autoplay: this.isAutoplay(),
 792         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 793
 794         playerElement: this.playerElement,
 795         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 796
 797         videoDuration: video.duration,
 798         enableHotkeys: true,
 799         inactivityTimeout: 2500,
 800         poster: video.previewUrl,
 801
 802         startTime,
 803         stopTime: urlOptions.stopTime,
 804         controls: urlOptions.controls,
 805         muted: urlOptions.muted,
 806         loop: urlOptions.loop,
 807         subtitle: urlOptions.subtitle,
 808
 809         peertubeLink: urlOptions.peertubeLink,
 810
 811         theaterButton: true,
 812         captions: videoCaptions.length !== 0,
 813
 814         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 815           ? this.videoService.getVideoViewUrl(video.uuid)
 816           : null,
 817         embedUrl: video.embedUrl,
 818         embedTitle: video.name,
 819
 820         isLive: video.isLive,
 821
 822         language: this.localeId,
 823
 824         userWatching: user && user.videosHistoryEnabled === true ? {
 825           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 826           authorizationHeader: this.authService.getRequestHeaderValue()
 827         } : undefined,
 828
 829         serverUrl: environment.apiUrl,
 830
 831         videoCaptions: playerCaptions
 832       },
 833
 834       webtorrent: {
 835         videoFiles: video.files
 836       }
 837     }
 838
 839     let mode: PlayerMode
 840
 841     if (urlOptions.playerMode) {
 842       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 843       else mode = 'webtorrent'
 844     } else {
 845       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 846       else mode = 'webtorrent'
 847     }
 848
 849     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 850     if (typeof TextEncoder === 'undefined') {
 851       mode = 'webtorrent'
 852     }
 853
 854     if (mode === 'p2p-media-loader') {
 855       const hlsPlaylist = video.getHlsPlaylist()
 856
 857       const p2pMediaLoader = {
 858         playlistUrl: hlsPlaylist.playlistUrl,
 859         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 860         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 861         trackerAnnounce: video.trackerUrls,
 862         videoFiles: hlsPlaylist.files
 863       } as P2PMediaLoaderOptions
 864
 865       Object.assign(options, { p2pMediaLoader })
 866     }
 867
 868     return { playerMode: mode, playerOptions: options }
 869   }
 870
 871   private pausePlayer () {
 872     if (!this.player) return
 873
 874     this.player.pause()
 875   }
 876
 877   private resumePlayer () {
 878     if (!this.player) return
 879
 880     this.player.play()
 881   }
 882
 883   private isPlaying () {
 884     if (!this.player) return
 885
 886     return !this.player.paused()
 887   }
 888
 889   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 890     if (!this.liveVideosSub) {
 891       this.liveVideosSub = this.buildLiveEventsSubscription()
 892     }
 893
 894     if (oldVideo && oldVideo.id !== newVideo.id) {
 895       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 896     }
 897
 898     if (!newVideo.isLive) return
 899
 900     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 901   }
 902
 903   private buildLiveEventsSubscription () {
 904     return this.peertubeSocket.getLiveVideosObservable()
 905       .subscribe(({ type, payload }) => {
 906         if (type === 'state-change') return this.handleLiveStateChange(payload.state)
 907         if (type === 'views-change') return this.handleLiveViewsChange(payload.views)
 908       })
 909   }
 910
 911   private handleLiveStateChange (newState: VideoState) {
 912     if (newState !== VideoState.PUBLISHED) return
 913
 914     const videoState = this.video.state.id
 915     if (videoState !== VideoState.WAITING_FOR_LIVE && videoState !== VideoState.LIVE_ENDED) return
 916
 917     console.log('Loading video after live update.')
 918
 919     const videoUUID = this.video.uuid
 920
 921     // Reset to refetch the video
 922     this.video = undefined
 923     this.loadVideo(videoUUID)
 924   }
 925
 926   private handleLiveViewsChange (newViews: number) {
 927     if (!this.video) {
 928       console.error('Cannot update video live views because video is no defined.')
 929       return
 930     }
 931
 932     console.log('Updating live views.')
 933
 934     this.video.views = newViews
 935   }
 936
 937   private initHotkeys () {
 938     this.hotkeys = [
 939       // These hotkeys are managed by the player
 940       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 941       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 942       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 943
 944       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)`),
 945
 946       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 947       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 948
 949       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 950       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 951
 952       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 953       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 954
 955       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 956     ]
 957
 958     if (this.isUserLoggedIn()) {
 959       this.hotkeys = this.hotkeys.concat([
 960         new Hotkey('shift+l', () => {
 961           this.setLike()
 962           return false
 963         }, undefined, $localize`Like the video`),
 964
 965         new Hotkey('shift+d', () => {
 966           this.setDislike()
 967           return false
 968         }, undefined, $localize`Dislike the video`),
 969
 970         new Hotkey('shift+s', () => {
 971           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 972           return false
 973         }, undefined, $localize`Subscribe to the account`)
 974       ])
 975     }
 976
 977     this.hotkeysService.add(this.hotkeys)
 978   }
 979 }