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   MetaService,
  13   Notifier,
  14   PeerTubeSocket,
  15   RestExtractor,
  16   ScreenService,
  17   ServerService,
  18   UserService
  19 } from '@app/core'
  20 import { HooksService } from '@app/core/plugins/hooks.service'
  21 import { RedirectService } from '@app/core/routing/redirect.service'
  22 import { isXPercentInViewport, scrollToTop } from '@app/helpers'
  23 import { Video, VideoCaptionService, VideoDetails, VideoService } from '@app/shared/shared-main'
  24 import { VideoShareComponent } from '@app/shared/shared-share-modal'
  25 import { SupportModalComponent } from '@app/shared/shared-support-modal'
  26 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
  27 import { VideoActionsDisplayType, VideoDownloadComponent } from '@app/shared/shared-video-miniature'
  28 import { VideoPlaylist, VideoPlaylistService } from '@app/shared/shared-video-playlist'
  29 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  30 import { HttpStatusCode } from '@shared/core-utils/miscs/http-error-codes'
  31 import {
  32   HTMLServerConfig,
  33   PeerTubeProblemDocument,
  34   ServerErrorCode,
  35   UserVideoRateType,
  36   VideoCaption,
  37   VideoPrivacy,
  38   VideoState
  39 } from '@shared/models'
  40 import {
  41   cleanupVideoWatch,
  42   getStoredP2PEnabled,
  43   getStoredTheater,
  44   getStoredVideoWatchHistory
  45 } from '../../../assets/player/peertube-player-local-storage'
  46 import {
  47   CustomizationOptions,
  48   P2PMediaLoaderOptions,
  49   PeertubePlayerManager,
  50   PeertubePlayerManagerOptions,
  51   PlayerMode,
  52   videojs
  53 } from '../../../assets/player/peertube-player-manager'
  54 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  55 import { environment } from '../../../environments/environment'
  56 import { VideoWatchPlaylistComponent } from './video-watch-playlist.component'
  57
  58 type URLOptions = CustomizationOptions & { playerMode: PlayerMode }
  59
  60 @Component({
  61   selector: 'my-video-watch',
  62   templateUrl: './video-watch.component.html',
  63   styleUrls: [ './video-watch.component.scss' ]
  64 })
  65 export class VideoWatchComponent implements OnInit, OnDestroy {
  66   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  67
  68   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  69   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  70   @ViewChild('supportModal') supportModal: SupportModalComponent
  71   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  72   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  73
  74   player: any
  75   playerElement: HTMLVideoElement
  76
  77   theaterEnabled = false
  78
  79   userRating: UserVideoRateType = null
  80
  81   playerPlaceholderImgSrc: string
  82
  83   video: VideoDetails = null
  84   videoCaptions: VideoCaption[] = []
  85
  86   playlistPosition: number
  87   playlist: VideoPlaylist = null
  88
  89   descriptionLoading = false
  90   completeDescriptionShown = false
  91   completeVideoDescription: string
  92   shortVideoDescription: string
  93   videoHTMLDescription = ''
  94
  95   likesBarTooltipText = ''
  96
  97   hasAlreadyAcceptedPrivacyConcern = false
  98   remoteServerDown = false
  99
 100   hotkeys: Hotkey[] = []
 101
 102   tooltipLike = ''
 103   tooltipDislike = ''
 104   tooltipSupport = ''
 105   tooltipSaveToPlaylist = ''
 106
 107   videoActionsOptions: VideoActionsDisplayType = {
 108     playlist: false,
 109     download: true,
 110     update: true,
 111     blacklist: true,
 112     delete: true,
 113     report: true,
 114     duplicate: true,
 115     mute: true,
 116     liveInfo: true
 117   }
 118
 119   private nextVideoUuid = ''
 120   private nextVideoTitle = ''
 121   private currentTime: number
 122   private paramsSub: Subscription
 123   private queryParamsSub: Subscription
 124   private configSub: Subscription
 125   private liveVideosSub: Subscription
 126
 127   private serverConfig: HTMLServerConfig
 128
 129   constructor (
 130     private elementRef: ElementRef,
 131     private changeDetector: ChangeDetectorRef,
 132     private route: ActivatedRoute,
 133     private router: Router,
 134     private videoService: VideoService,
 135     private playlistService: VideoPlaylistService,
 136     private confirmService: ConfirmService,
 137     private metaService: MetaService,
 138     private authService: AuthService,
 139     private userService: UserService,
 140     private serverService: ServerService,
 141     private restExtractor: RestExtractor,
 142     private notifier: Notifier,
 143     private markdownService: MarkdownService,
 144     private zone: NgZone,
 145     private redirectService: RedirectService,
 146     private videoCaptionService: VideoCaptionService,
 147     private hotkeysService: HotkeysService,
 148     private hooks: HooksService,
 149     private peertubeSocket: PeerTubeSocket,
 150     private screenService: ScreenService,
 151     private location: PlatformLocation,
 152     @Inject(LOCALE_ID) private localeId: string
 153   ) { }
 154
 155   get user () {
 156     return this.authService.getUser()
 157   }
 158
 159   get anonymousUser () {
 160     return this.userService.getAnonymousUser()
 161   }
 162
 163   async ngOnInit () {
 164     // Hide the tooltips for unlogged users in mobile view, this adds confusion with the popover
 165     if (this.user || !this.screenService.isInMobileView()) {
 166       this.tooltipLike = $localize`Like this video`
 167       this.tooltipDislike = $localize`Dislike this video`
 168       this.tooltipSupport = $localize`Support options for this video`
 169       this.tooltipSaveToPlaylist = $localize`Save to playlist`
 170     }
 171
 172     PeertubePlayerManager.initState()
 173
 174     this.serverConfig = this.serverService.getHTMLConfig()
 175     if (
 176       isWebRTCDisabled() ||
 177       this.serverConfig.tracker.enabled === false ||
 178       getStoredP2PEnabled() === false ||
 179       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 180     ) {
 181       this.hasAlreadyAcceptedPrivacyConcern = true
 182     }
 183
 184     this.paramsSub = this.route.params.subscribe(routeParams => {
 185       const videoId = routeParams[ 'videoId' ]
 186       if (videoId) this.loadVideo(videoId)
 187
 188       const playlistId = routeParams[ 'playlistId' ]
 189       if (playlistId) this.loadPlaylist(playlistId)
 190     })
 191
 192     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 193       // Handle the ?playlistPosition
 194       const positionParam = queryParams[ 'playlistPosition' ] ?? 1
 195
 196       this.playlistPosition = positionParam === 'last'
 197         ? -1 // Handle the "last" index
 198         : parseInt(positionParam + '', 10)
 199
 200       if (isNaN(this.playlistPosition)) {
 201         console.error(`playlistPosition query param '${positionParam}' was parsed as NaN, defaulting to 1.`)
 202         this.playlistPosition = 1
 203       }
 204
 205       this.videoWatchPlaylist.updatePlaylistIndex(this.playlistPosition)
 206
 207       const start = queryParams[ 'start' ]
 208       if (this.player && start) this.player.currentTime(parseInt(start, 10))
 209     })
 210
 211     this.initHotkeys()
 212
 213     this.theaterEnabled = getStoredTheater()
 214
 215     this.hooks.runAction('action:video-watch.init', 'video-watch')
 216
 217     setTimeout(cleanupVideoWatch, 1500) // Run in timeout to ensure we're not blocking the UI
 218   }
 219
 220   ngOnDestroy () {
 221     this.flushPlayer()
 222
 223     // Unsubscribe subscriptions
 224     if (this.paramsSub) this.paramsSub.unsubscribe()
 225     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 226     if (this.configSub) this.configSub.unsubscribe()
 227     if (this.liveVideosSub) this.liveVideosSub.unsubscribe()
 228
 229     // Unbind hotkeys
 230     this.hotkeysService.remove(this.hotkeys)
 231   }
 232
 233   setLike () {
 234     if (this.isUserLoggedIn() === false) return
 235
 236     // Already liked this video
 237     if (this.userRating === 'like') this.setRating('none')
 238     else this.setRating('like')
 239   }
 240
 241   setDislike () {
 242     if (this.isUserLoggedIn() === false) return
 243
 244     // Already disliked this video
 245     if (this.userRating === 'dislike') this.setRating('none')
 246     else this.setRating('dislike')
 247   }
 248
 249   getRatePopoverText () {
 250     if (this.isUserLoggedIn()) return undefined
 251
 252     return $localize`You need to be <a href="/login">logged in</a> to rate this video.`
 253   }
 254
 255   showMoreDescription () {
 256     if (this.completeVideoDescription === undefined) {
 257       return this.loadCompleteDescription()
 258     }
 259
 260     this.updateVideoDescription(this.completeVideoDescription)
 261     this.completeDescriptionShown = true
 262   }
 263
 264   showLessDescription () {
 265     this.updateVideoDescription(this.shortVideoDescription)
 266     this.completeDescriptionShown = false
 267   }
 268
 269   showDownloadModal () {
 270     this.videoDownloadModal.show(this.video, this.videoCaptions)
 271   }
 272
 273   isVideoDownloadable () {
 274     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled && !this.video.isLive
 275   }
 276
 277   loadCompleteDescription () {
 278     this.descriptionLoading = true
 279
 280     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 281         .subscribe(
 282           description => {
 283             this.completeDescriptionShown = true
 284             this.descriptionLoading = false
 285
 286             this.shortVideoDescription = this.video.description
 287             this.completeVideoDescription = description
 288
 289             this.updateVideoDescription(this.completeVideoDescription)
 290           },
 291
 292           error => {
 293             this.descriptionLoading = false
 294             this.notifier.error(error.message)
 295           }
 296         )
 297   }
 298
 299   showSupportModal () {
 300     this.supportModal.show()
 301   }
 302
 303   showShareModal () {
 304     this.videoShareModal.show(this.currentTime, this.videoWatchPlaylist.currentPlaylistPosition)
 305   }
 306
 307   isUserLoggedIn () {
 308     return this.authService.isLoggedIn()
 309   }
 310
 311   getVideoUrl () {
 312     if (!this.video.url) {
 313       return this.video.originInstanceUrl + VideoDetails.buildClientUrl(this.video.uuid)
 314     }
 315     return this.video.url
 316   }
 317
 318   getVideoTags () {
 319     if (!this.video || Array.isArray(this.video.tags) === false) return []
 320
 321     return this.video.tags
 322   }
 323
 324   onRecommendations (videos: Video[]) {
 325     if (videos.length > 0) {
 326       // The recommended videos's first element should be the next video
 327       const video = videos[0]
 328       this.nextVideoUuid = video.uuid
 329       this.nextVideoTitle = video.name
 330     }
 331   }
 332
 333   onVideoRemoved () {
 334     this.redirectService.redirectToHomepage()
 335   }
 336
 337   declinedPrivacyConcern () {
 338     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'false')
 339     this.hasAlreadyAcceptedPrivacyConcern = false
 340   }
 341
 342   acceptedPrivacyConcern () {
 343     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 344     this.hasAlreadyAcceptedPrivacyConcern = true
 345   }
 346
 347   isVideoToTranscode () {
 348     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 349   }
 350
 351   isVideoToImport () {
 352     return this.video && this.video.state.id === VideoState.TO_IMPORT
 353   }
 354
 355   hasVideoScheduledPublication () {
 356     return this.video && this.video.scheduledUpdate !== undefined
 357   }
 358
 359   isLive () {
 360     return !!(this.video?.isLive)
 361   }
 362
 363   isWaitingForLive () {
 364     return this.video?.state.id === VideoState.WAITING_FOR_LIVE
 365   }
 366
 367   isLiveEnded () {
 368     return this.video?.state.id === VideoState.LIVE_ENDED
 369   }
 370
 371   isVideoBlur (video: Video) {
 372     return video.isVideoNSFWForUser(this.user, this.serverConfig)
 373   }
 374
 375   isAutoPlayEnabled () {
 376     return (
 377       (this.user && this.user.autoPlayNextVideo) ||
 378       this.anonymousUser.autoPlayNextVideo
 379     )
 380   }
 381
 382   handleTimestampClicked (timestamp: number) {
 383     if (!this.player || this.video.isLive) return
 384
 385     this.player.currentTime(timestamp)
 386     scrollToTop()
 387   }
 388
 389   isPlaylistAutoPlayEnabled () {
 390     return (
 391       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 392       this.anonymousUser.autoPlayNextVideoPlaylist
 393     )
 394   }
 395
 396   isChannelDisplayNameGeneric () {
 397     const genericChannelDisplayName = [
 398       `Main ${this.video.channel.ownerAccount.name} channel`,
 399       `Default ${this.video.channel.ownerAccount.name} channel`
 400     ]
 401
 402     return genericChannelDisplayName.includes(this.video.channel.displayName)
 403   }
 404
 405   onPlaylistVideoFound (videoId: string) {
 406     this.loadVideo(videoId)
 407   }
 408
 409   displayOtherVideosAsRow () {
 410     // Use the same value as in the SASS file
 411     return this.screenService.getWindowInnerWidth() <= 1100
 412   }
 413
 414   private loadVideo (videoId: string) {
 415     // Video did not change
 416     if (this.video && this.video.uuid === videoId) return
 417
 418     if (this.player) this.player.pause()
 419
 420     const videoObs = this.hooks.wrapObsFun(
 421       this.videoService.getVideo.bind(this.videoService),
 422       { videoId },
 423       'video-watch',
 424       'filter:api.video-watch.video.get.params',
 425       'filter:api.video-watch.video.get.result'
 426     )
 427
 428     // Video did change
 429     forkJoin([
 430       videoObs,
 431       this.videoCaptionService.listCaptions(videoId)
 432     ])
 433       .pipe(
 434         // If 400, 403 or 404, the video is private or blocked so redirect to 404
 435         catchError(err => {
 436           const errorBody = err.body as PeerTubeProblemDocument
 437
 438           if (errorBody.code === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && errorBody.originUrl) {
 439             const search = window.location.search
 440             let originUrl = errorBody.originUrl
 441             if (search) originUrl += search
 442
 443             this.confirmService.confirm(
 444               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 445               $localize`Redirection`
 446             ).then(res => {
 447               if (res === false) {
 448                 return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 449                   HttpStatusCode.BAD_REQUEST_400,
 450                   HttpStatusCode.FORBIDDEN_403,
 451                   HttpStatusCode.NOT_FOUND_404
 452                 ])
 453               }
 454
 455               return window.location.href = originUrl
 456             })
 457           }
 458
 459           return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 460             HttpStatusCode.BAD_REQUEST_400,
 461             HttpStatusCode.FORBIDDEN_403,
 462             HttpStatusCode.NOT_FOUND_404
 463           ])
 464         })
 465       )
 466       .subscribe(([ video, captionsResult ]) => {
 467         const queryParams = this.route.snapshot.queryParams
 468
 469         const urlOptions = {
 470           resume: queryParams.resume,
 471
 472           startTime: queryParams.start,
 473           stopTime: queryParams.stop,
 474
 475           muted: queryParams.muted,
 476           loop: queryParams.loop,
 477           subtitle: queryParams.subtitle,
 478
 479           playerMode: queryParams.mode,
 480           peertubeLink: false
 481         }
 482
 483         this.onVideoFetched(video, captionsResult.data, urlOptions)
 484             .catch(err => this.handleError(err))
 485       })
 486   }
 487
 488   private loadPlaylist (playlistId: string) {
 489     // Playlist did not change
 490     if (this.playlist && this.playlist.uuid === playlistId) return
 491
 492     this.playlistService.getVideoPlaylist(playlistId)
 493       .pipe(
 494         // If 400 or 403, the video is private or blocked so redirect to 404
 495         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 496           HttpStatusCode.BAD_REQUEST_400,
 497           HttpStatusCode.FORBIDDEN_403,
 498           HttpStatusCode.NOT_FOUND_404
 499         ]))
 500       )
 501       .subscribe(playlist => {
 502         this.playlist = playlist
 503
 504         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 505       })
 506   }
 507
 508   private updateVideoDescription (description: string) {
 509     this.video.description = description
 510     this.setVideoDescriptionHTML()
 511       .catch(err => console.error(err))
 512   }
 513
 514   private async setVideoDescriptionHTML () {
 515     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 516     this.videoHTMLDescription = this.markdownService.processVideoTimestamps(html)
 517   }
 518
 519   private setVideoLikesBarTooltipText () {
 520     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 521   }
 522
 523   private handleError (err: any) {
 524     const errorMessage: string = typeof err === 'string' ? err : err.message
 525     if (!errorMessage) return
 526
 527     // Display a message in the video player instead of a notification
 528     if (errorMessage.indexOf('from xs param') !== -1) {
 529       this.flushPlayer()
 530       this.remoteServerDown = true
 531       this.changeDetector.detectChanges()
 532
 533       return
 534     }
 535
 536     this.notifier.error(errorMessage)
 537   }
 538
 539   private checkUserRating () {
 540     // Unlogged users do not have ratings
 541     if (this.isUserLoggedIn() === false) return
 542
 543     this.videoService.getUserVideoRating(this.video.id)
 544         .subscribe(
 545           ratingObject => {
 546             if (ratingObject) {
 547               this.userRating = ratingObject.rating
 548             }
 549           },
 550
 551           err => this.notifier.error(err.message)
 552         )
 553   }
 554
 555   private async onVideoFetched (
 556     video: VideoDetails,
 557     videoCaptions: VideoCaption[],
 558     urlOptions: URLOptions
 559   ) {
 560     this.subscribeToLiveEventsIfNeeded(this.video, video)
 561
 562     this.video = video
 563     this.videoCaptions = videoCaptions
 564
 565     // Re init attributes
 566     this.playerPlaceholderImgSrc = undefined
 567     this.descriptionLoading = false
 568     this.completeDescriptionShown = false
 569     this.completeVideoDescription = undefined
 570     this.remoteServerDown = false
 571     this.currentTime = undefined
 572
 573     if (this.isVideoBlur(this.video)) {
 574       const res = await this.confirmService.confirm(
 575         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 576         $localize`Mature or explicit content`
 577       )
 578       if (res === false) return this.location.back()
 579     }
 580
 581     this.buildPlayer(urlOptions)
 582       .catch(err => console.error('Cannot build the player', err))
 583
 584     this.setVideoDescriptionHTML()
 585     this.setVideoLikesBarTooltipText()
 586
 587     this.setOpenGraphTags()
 588     this.checkUserRating()
 589
 590     const hookOptions = {
 591       videojs,
 592       video: this.video,
 593       playlist: this.playlist
 594     }
 595     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', hookOptions)
 596   }
 597
 598   private async buildPlayer (urlOptions: URLOptions) {
 599     // Flush old player if needed
 600     this.flushPlayer()
 601
 602     const videoState = this.video.state.id
 603     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) {
 604       this.playerPlaceholderImgSrc = this.video.previewPath
 605       return
 606     }
 607
 608     // Build video element, because videojs removes it on dispose
 609     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 610     this.playerElement = document.createElement('video')
 611     this.playerElement.className = 'video-js vjs-peertube-skin'
 612     this.playerElement.setAttribute('playsinline', 'true')
 613     playerElementWrapper.appendChild(this.playerElement)
 614
 615     const params = {
 616       video: this.video,
 617       videoCaptions: this.videoCaptions,
 618       urlOptions,
 619       user: this.user
 620     }
 621     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 622       this.buildPlayerManagerOptions.bind(this),
 623       params,
 624       'video-watch',
 625       'filter:internal.video-watch.player.build-options.params',
 626       'filter:internal.video-watch.player.build-options.result'
 627     )
 628
 629     this.zone.runOutsideAngular(async () => {
 630       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 631
 632       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 633
 634       this.player.on('timeupdate', () => {
 635         this.currentTime = Math.floor(this.player.currentTime())
 636       })
 637
 638       /**
 639        * replaces this.player.one('ended')
 640        * 'condition()': true to make the upnext functionality trigger,
 641        *                false to disable the upnext functionality
 642        * go to the next video in 'condition()' if you don't want of the timer.
 643        * 'next': function triggered at the end of the timer.
 644        * 'suspended': function used at each clic of the timer checking if we need
 645        * to reset progress and wait until 'suspended' becomes truthy again.
 646        */
 647       this.player.upnext({
 648         timeout: 10000, // 10s
 649         headText: $localize`Up Next`,
 650         cancelText: $localize`Cancel`,
 651         suspendedText: $localize`Autoplay is suspended`,
 652         getTitle: () => this.nextVideoTitle,
 653         next: () => this.zone.run(() => this.autoplayNext()),
 654         condition: () => {
 655           if (this.playlist) {
 656             if (this.isPlaylistAutoPlayEnabled()) {
 657               // upnext will not trigger, and instead the next video will play immediately
 658               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 659             }
 660           } else if (this.isAutoPlayEnabled()) {
 661             return true // upnext will trigger
 662           }
 663           return false // upnext will not trigger, and instead leave the video stopping
 664         },
 665         suspended: () => {
 666           return (
 667             !isXPercentInViewport(this.player.el(), 80) ||
 668             !document.getElementById('content').contains(document.activeElement)
 669           )
 670         }
 671       })
 672
 673       this.player.one('stopped', () => {
 674         if (this.playlist) {
 675           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 676         }
 677       })
 678
 679       this.player.one('ended', () => {
 680         if (this.video.isLive) {
 681           this.zone.run(() => this.video.state.id = VideoState.LIVE_ENDED)
 682         }
 683       })
 684
 685       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 686         this.zone.run(() => this.theaterEnabled = enabled)
 687       })
 688
 689       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 690     })
 691   }
 692
 693   private autoplayNext () {
 694     if (this.playlist) {
 695       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 696     } else if (this.nextVideoUuid) {
 697       this.router.navigate([ '/w', this.nextVideoUuid ])
 698     }
 699   }
 700
 701   private setRating (nextRating: UserVideoRateType) {
 702     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 703       like: this.videoService.setVideoLike,
 704       dislike: this.videoService.setVideoDislike,
 705       none: this.videoService.unsetVideoLike
 706     }
 707
 708     ratingMethods[nextRating].call(this.videoService, this.video.id)
 709           .subscribe(
 710             () => {
 711               // Update the video like attribute
 712               this.updateVideoRating(this.userRating, nextRating)
 713               this.userRating = nextRating
 714             },
 715
 716             (err: { message: string }) => this.notifier.error(err.message)
 717           )
 718   }
 719
 720   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 721     let likesToIncrement = 0
 722     let dislikesToIncrement = 0
 723
 724     if (oldRating) {
 725       if (oldRating === 'like') likesToIncrement--
 726       if (oldRating === 'dislike') dislikesToIncrement--
 727     }
 728
 729     if (newRating === 'like') likesToIncrement++
 730     if (newRating === 'dislike') dislikesToIncrement++
 731
 732     this.video.likes += likesToIncrement
 733     this.video.dislikes += dislikesToIncrement
 734
 735     this.video.buildLikeAndDislikePercents()
 736     this.setVideoLikesBarTooltipText()
 737   }
 738
 739   private setOpenGraphTags () {
 740     this.metaService.setTitle(this.video.name)
 741
 742     this.metaService.setTag('og:type', 'video')
 743
 744     this.metaService.setTag('og:title', this.video.name)
 745     this.metaService.setTag('name', this.video.name)
 746
 747     this.metaService.setTag('og:description', this.video.description)
 748     this.metaService.setTag('description', this.video.description)
 749
 750     this.metaService.setTag('og:image', this.video.previewPath)
 751
 752     this.metaService.setTag('og:duration', this.video.duration.toString())
 753
 754     this.metaService.setTag('og:site_name', 'PeerTube')
 755
 756     this.metaService.setTag('og:url', window.location.href)
 757     this.metaService.setTag('url', window.location.href)
 758   }
 759
 760   private isAutoplay () {
 761     // We'll jump to the thread id, so do not play the video
 762     if (this.route.snapshot.params['threadId']) return false
 763
 764     // Otherwise true by default
 765     if (!this.user) return true
 766
 767     // Be sure the autoPlay is set to false
 768     return this.user.autoPlayVideo !== false
 769   }
 770
 771   private flushPlayer () {
 772     // Remove player if it exists
 773     if (this.player) {
 774       try {
 775         this.player.dispose()
 776         this.player = undefined
 777       } catch (err) {
 778         console.error('Cannot dispose player.', err)
 779       }
 780     }
 781   }
 782
 783   private buildPlayerManagerOptions (params: {
 784     video: VideoDetails,
 785     videoCaptions: VideoCaption[],
 786     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 787     user?: AuthUser
 788   }) {
 789     const { video, videoCaptions, urlOptions, user } = params
 790     const getStartTime = () => {
 791       const byUrl = urlOptions.startTime !== undefined
 792       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 793       const byLocalStorage = getStoredVideoWatchHistory(video.uuid)
 794
 795       if (byUrl) return timeToInt(urlOptions.startTime)
 796       if (byHistory) return video.userHistory.currentTime
 797       if (byLocalStorage) return byLocalStorage.duration
 798
 799       return 0
 800     }
 801
 802     let startTime = getStartTime()
 803
 804     // If we are at the end of the video, reset the timer
 805     if (video.duration - startTime <= 1) startTime = 0
 806
 807     const playerCaptions = videoCaptions.map(c => ({
 808       label: c.language.label,
 809       language: c.language.id,
 810       src: environment.apiUrl + c.captionPath
 811     }))
 812
 813     const options: PeertubePlayerManagerOptions = {
 814       common: {
 815         autoplay: this.isAutoplay(),
 816         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 817
 818         playerElement: this.playerElement,
 819         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 820
 821         videoDuration: video.duration,
 822         enableHotkeys: true,
 823         inactivityTimeout: 2500,
 824         poster: video.previewUrl,
 825
 826         startTime,
 827         stopTime: urlOptions.stopTime,
 828         controls: urlOptions.controls,
 829         muted: urlOptions.muted,
 830         loop: urlOptions.loop,
 831         subtitle: urlOptions.subtitle,
 832
 833         peertubeLink: urlOptions.peertubeLink,
 834
 835         theaterButton: true,
 836         captions: videoCaptions.length !== 0,
 837
 838         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 839           ? this.videoService.getVideoViewUrl(video.uuid)
 840           : null,
 841         embedUrl: video.embedUrl,
 842         embedTitle: video.name,
 843
 844         isLive: video.isLive,
 845
 846         language: this.localeId,
 847
 848         userWatching: user && user.videosHistoryEnabled === true ? {
 849           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 850           authorizationHeader: this.authService.getRequestHeaderValue()
 851         } : undefined,
 852
 853         serverUrl: environment.apiUrl,
 854
 855         videoCaptions: playerCaptions,
 856
 857         videoUUID: video.uuid
 858       },
 859
 860       webtorrent: {
 861         videoFiles: video.files
 862       }
 863     }
 864
 865     // Only set this if we're in a playlist
 866     if (this.playlist) {
 867       options.common.previousVideo = () => {
 868         this.zone.run(() => this.videoWatchPlaylist.navigateToPreviousPlaylistVideo())
 869       }
 870     }
 871
 872     let mode: PlayerMode
 873
 874     if (urlOptions.playerMode) {
 875       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 876       else mode = 'webtorrent'
 877     } else {
 878       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 879       else mode = 'webtorrent'
 880     }
 881
 882     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 883     if (typeof TextEncoder === 'undefined') {
 884       mode = 'webtorrent'
 885     }
 886
 887     if (mode === 'p2p-media-loader') {
 888       const hlsPlaylist = video.getHlsPlaylist()
 889
 890       const p2pMediaLoader = {
 891         playlistUrl: hlsPlaylist.playlistUrl,
 892         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 893         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 894         trackerAnnounce: video.trackerUrls,
 895         videoFiles: hlsPlaylist.files
 896       } as P2PMediaLoaderOptions
 897
 898       Object.assign(options, { p2pMediaLoader })
 899     }
 900
 901     return { playerMode: mode, playerOptions: options }
 902   }
 903
 904   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 905     if (!this.liveVideosSub) {
 906       this.liveVideosSub = this.buildLiveEventsSubscription()
 907     }
 908
 909     if (oldVideo && oldVideo.id !== newVideo.id) {
 910       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 911     }
 912
 913     if (!newVideo.isLive) return
 914
 915     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 916   }
 917
 918   private buildLiveEventsSubscription () {
 919     return this.peertubeSocket.getLiveVideosObservable()
 920       .subscribe(({ type, payload }) => {
 921         if (type === 'state-change') return this.handleLiveStateChange(payload.state)
 922         if (type === 'views-change') return this.handleLiveViewsChange(payload.views)
 923       })
 924   }
 925
 926   private handleLiveStateChange (newState: VideoState) {
 927     if (newState !== VideoState.PUBLISHED) return
 928
 929     const videoState = this.video.state.id
 930     if (videoState !== VideoState.WAITING_FOR_LIVE && videoState !== VideoState.LIVE_ENDED) return
 931
 932     console.log('Loading video after live update.')
 933
 934     const videoUUID = this.video.uuid
 935
 936     // Reset to refetch the video
 937     this.video = undefined
 938     this.loadVideo(videoUUID)
 939   }
 940
 941   private handleLiveViewsChange (newViews: number) {
 942     if (!this.video) {
 943       console.error('Cannot update video live views because video is no defined.')
 944       return
 945     }
 946
 947     console.log('Updating live views.')
 948
 949     this.video.views = newViews
 950   }
 951
 952   private initHotkeys () {
 953     this.hotkeys = [
 954       // These hotkeys are managed by the player
 955       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 956       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 957       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 958
 959       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)`),
 960
 961       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 962       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 963
 964       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 965       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 966
 967       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 968       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 969
 970       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 971     ]
 972
 973     if (this.isUserLoggedIn()) {
 974       this.hotkeys = this.hotkeys.concat([
 975         new Hotkey('shift+l', () => {
 976           this.setLike()
 977           return false
 978         }, undefined, $localize`Like the video`),
 979
 980         new Hotkey('shift+d', () => {
 981           this.setDislike()
 982           return false
 983         }, undefined, $localize`Dislike the video`),
 984
 985         new Hotkey('shift+s', () => {
 986           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 987           return false
 988         }, undefined, $localize`Subscribe to the account`)
 989       ])
 990     }
 991
 992     this.hotkeysService.add(this.hotkeys)
 993   }
 994 }