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 = $localize`Save to playlist`
 170     }
 171
 172     PeertubePlayerManager.initState()
 173
 174     this.serverConfig = this.serverService.getHTMLConfig()
 175     if (
 176       isWebRTCDisabled() ||
 177       this.serverConfig.tracker.enabled === false ||
 178       getStoredP2PEnabled() === false ||
 179       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 180     ) {
 181       this.hasAlreadyAcceptedPrivacyConcern = true
 182     }
 183
 184
 185     this.paramsSub = this.route.params.subscribe(routeParams => {
 186       const videoId = routeParams[ 'videoId' ]
 187       if (videoId) this.loadVideo(videoId)
 188
 189       const playlistId = routeParams[ 'playlistId' ]
 190       if (playlistId) this.loadPlaylist(playlistId)
 191     })
 192
 193     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 194       // Handle the ?playlistPosition
 195       const positionParam = queryParams[ 'playlistPosition' ] ?? 1
 196
 197       this.playlistPosition = positionParam === 'last'
 198         ? -1 // Handle the "last" index
 199         : parseInt(positionParam + '', 10)
 200
 201       if (isNaN(this.playlistPosition)) {
 202         console.error(`playlistPosition query param '${positionParam}' was parsed as NaN, defaulting to 1.`)
 203         this.playlistPosition = 1
 204       }
 205
 206       this.videoWatchPlaylist.updatePlaylistIndex(this.playlistPosition)
 207
 208       const start = queryParams[ 'start' ]
 209       if (this.player && start) this.player.currentTime(parseInt(start, 10))
 210     })
 211
 212     this.initHotkeys()
 213
 214     this.theaterEnabled = getStoredTheater()
 215
 216     this.hooks.runAction('action:video-watch.init', 'video-watch')
 217
 218     setTimeout(cleanupVideoWatch, 1500) // Run in timeout to ensure we're not blocking the UI
 219   }
 220
 221   ngOnDestroy () {
 222     this.flushPlayer()
 223
 224     // Unsubscribe subscriptions
 225     if (this.paramsSub) this.paramsSub.unsubscribe()
 226     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 227     if (this.configSub) this.configSub.unsubscribe()
 228     if (this.liveVideosSub) this.liveVideosSub.unsubscribe()
 229
 230     // Unbind hotkeys
 231     this.hotkeysService.remove(this.hotkeys)
 232   }
 233
 234   setLike () {
 235     if (this.isUserLoggedIn() === false) return
 236
 237     // Already liked this video
 238     if (this.userRating === 'like') this.setRating('none')
 239     else this.setRating('like')
 240   }
 241
 242   setDislike () {
 243     if (this.isUserLoggedIn() === false) return
 244
 245     // Already disliked this video
 246     if (this.userRating === 'dislike') this.setRating('none')
 247     else this.setRating('dislike')
 248   }
 249
 250   getRatePopoverText () {
 251     if (this.isUserLoggedIn()) return undefined
 252
 253     return $localize`You need to be <a href="/login">logged in</a> to rate this video.`
 254   }
 255
 256   showMoreDescription () {
 257     if (this.completeVideoDescription === undefined) {
 258       return this.loadCompleteDescription()
 259     }
 260
 261     this.updateVideoDescription(this.completeVideoDescription)
 262     this.completeDescriptionShown = true
 263   }
 264
 265   showLessDescription () {
 266     this.updateVideoDescription(this.shortVideoDescription)
 267     this.completeDescriptionShown = false
 268   }
 269
 270   showDownloadModal () {
 271     this.videoDownloadModal.show(this.video, this.videoCaptions)
 272   }
 273
 274   isVideoDownloadable () {
 275     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled && !this.video.isLive
 276   }
 277
 278   loadCompleteDescription () {
 279     this.descriptionLoading = true
 280
 281     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 282         .subscribe(
 283           description => {
 284             this.completeDescriptionShown = true
 285             this.descriptionLoading = false
 286
 287             this.shortVideoDescription = this.video.description
 288             this.completeVideoDescription = description
 289
 290             this.updateVideoDescription(this.completeVideoDescription)
 291           },
 292
 293           error => {
 294             this.descriptionLoading = false
 295             this.notifier.error(error.message)
 296           }
 297         )
 298   }
 299
 300   showSupportModal () {
 301     this.supportModal.show()
 302   }
 303
 304   showShareModal () {
 305     this.videoShareModal.show(this.currentTime, this.videoWatchPlaylist.currentPlaylistPosition)
 306   }
 307
 308   isUserLoggedIn () {
 309     return this.authService.isLoggedIn()
 310   }
 311
 312   getVideoUrl () {
 313     if (!this.video.url) {
 314       return this.video.originInstanceUrl + VideoDetails.buildClientUrl(this.video.uuid)
 315     }
 316     return this.video.url
 317   }
 318
 319   getVideoTags () {
 320     if (!this.video || Array.isArray(this.video.tags) === false) return []
 321
 322     return this.video.tags
 323   }
 324
 325   onRecommendations (videos: Video[]) {
 326     if (videos.length > 0) {
 327       // The recommended videos's first element should be the next video
 328       const video = videos[0]
 329       this.nextVideoUuid = video.uuid
 330       this.nextVideoTitle = video.name
 331     }
 332   }
 333
 334   onVideoRemoved () {
 335     this.redirectService.redirectToHomepage()
 336   }
 337
 338   declinedPrivacyConcern () {
 339     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'false')
 340     this.hasAlreadyAcceptedPrivacyConcern = false
 341   }
 342
 343   acceptedPrivacyConcern () {
 344     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 345     this.hasAlreadyAcceptedPrivacyConcern = true
 346   }
 347
 348   isVideoToTranscode () {
 349     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 350   }
 351
 352   isVideoToImport () {
 353     return this.video && this.video.state.id === VideoState.TO_IMPORT
 354   }
 355
 356   hasVideoScheduledPublication () {
 357     return this.video && this.video.scheduledUpdate !== undefined
 358   }
 359
 360   isLive () {
 361     return !!(this.video?.isLive)
 362   }
 363
 364   isWaitingForLive () {
 365     return this.video?.state.id === VideoState.WAITING_FOR_LIVE
 366   }
 367
 368   isLiveEnded () {
 369     return this.video?.state.id === VideoState.LIVE_ENDED
 370   }
 371
 372   isVideoBlur (video: Video) {
 373     return video.isVideoNSFWForUser(this.user, this.serverConfig)
 374   }
 375
 376   isAutoPlayEnabled () {
 377     return (
 378       (this.user && this.user.autoPlayNextVideo) ||
 379       this.anonymousUser.autoPlayNextVideo
 380     )
 381   }
 382
 383   handleTimestampClicked (timestamp: number) {
 384     if (!this.player || this.video.isLive) return
 385
 386     this.player.currentTime(timestamp)
 387     scrollToTop()
 388   }
 389
 390   isPlaylistAutoPlayEnabled () {
 391     return (
 392       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 393       this.anonymousUser.autoPlayNextVideoPlaylist
 394     )
 395   }
 396
 397   isChannelDisplayNameGeneric () {
 398     const genericChannelDisplayName = [
 399       `Main ${this.video.channel.ownerAccount.name} channel`,
 400       `Default ${this.video.channel.ownerAccount.name} channel`
 401     ]
 402
 403     return genericChannelDisplayName.includes(this.video.channel.displayName)
 404   }
 405
 406   onPlaylistVideoFound (videoId: string) {
 407     this.loadVideo(videoId)
 408   }
 409
 410   displayOtherVideosAsRow () {
 411     // Use the same value as in the SASS file
 412     return this.screenService.getWindowInnerWidth() <= 1100
 413   }
 414
 415   private loadVideo (videoId: string) {
 416     // Video did not change
 417     if (this.video && this.video.uuid === videoId) return
 418
 419     if (this.player) this.player.pause()
 420
 421     const videoObs = this.hooks.wrapObsFun(
 422       this.videoService.getVideo.bind(this.videoService),
 423       { videoId },
 424       'video-watch',
 425       'filter:api.video-watch.video.get.params',
 426       'filter:api.video-watch.video.get.result'
 427     )
 428
 429     // Video did change
 430     forkJoin([
 431       videoObs,
 432       this.videoCaptionService.listCaptions(videoId)
 433     ])
 434       .pipe(
 435         // If 400, 403 or 404, the video is private or blocked so redirect to 404
 436         catchError(err => {
 437           const errorBody = err.body as PeerTubeProblemDocument
 438
 439           if (errorBody.code === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && errorBody.originUrl) {
 440             const search = window.location.search
 441             let originUrl = errorBody.originUrl
 442             if (search) originUrl += search
 443
 444             this.confirmService.confirm(
 445               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 446               $localize`Redirection`
 447             ).then(res => {
 448               if (res === false) {
 449                 return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 450                   HttpStatusCode.BAD_REQUEST_400,
 451                   HttpStatusCode.FORBIDDEN_403,
 452                   HttpStatusCode.NOT_FOUND_404
 453                 ])
 454               }
 455
 456               return window.location.href = originUrl
 457             })
 458           }
 459
 460           return this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 461             HttpStatusCode.BAD_REQUEST_400,
 462             HttpStatusCode.FORBIDDEN_403,
 463             HttpStatusCode.NOT_FOUND_404
 464           ])
 465         })
 466       )
 467       .subscribe(([ video, captionsResult ]) => {
 468         const queryParams = this.route.snapshot.queryParams
 469
 470         const urlOptions = {
 471           resume: queryParams.resume,
 472
 473           startTime: queryParams.start,
 474           stopTime: queryParams.stop,
 475
 476           muted: queryParams.muted,
 477           loop: queryParams.loop,
 478           subtitle: queryParams.subtitle,
 479
 480           playerMode: queryParams.mode,
 481           peertubeLink: false
 482         }
 483
 484         this.onVideoFetched(video, captionsResult.data, urlOptions)
 485             .catch(err => this.handleError(err))
 486       })
 487   }
 488
 489   private loadPlaylist (playlistId: string) {
 490     // Playlist did not change
 491     if (this.playlist && this.playlist.uuid === playlistId) return
 492
 493     this.playlistService.getVideoPlaylist(playlistId)
 494       .pipe(
 495         // If 400 or 403, the video is private or blocked so redirect to 404
 496         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, 'video', [
 497           HttpStatusCode.BAD_REQUEST_400,
 498           HttpStatusCode.FORBIDDEN_403,
 499           HttpStatusCode.NOT_FOUND_404
 500         ]))
 501       )
 502       .subscribe(playlist => {
 503         this.playlist = playlist
 504
 505         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 506       })
 507   }
 508
 509   private updateVideoDescription (description: string) {
 510     this.video.description = description
 511     this.setVideoDescriptionHTML()
 512       .catch(err => console.error(err))
 513   }
 514
 515   private async setVideoDescriptionHTML () {
 516     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 517     this.videoHTMLDescription = this.markdownService.processVideoTimestamps(html)
 518   }
 519
 520   private setVideoLikesBarTooltipText () {
 521     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 522   }
 523
 524   private handleError (err: any) {
 525     const errorMessage: string = typeof err === 'string' ? err : err.message
 526     if (!errorMessage) return
 527
 528     // Display a message in the video player instead of a notification
 529     if (errorMessage.indexOf('from xs param') !== -1) {
 530       this.flushPlayer()
 531       this.remoteServerDown = true
 532       this.changeDetector.detectChanges()
 533
 534       return
 535     }
 536
 537     this.notifier.error(errorMessage)
 538   }
 539
 540   private checkUserRating () {
 541     // Unlogged users do not have ratings
 542     if (this.isUserLoggedIn() === false) return
 543
 544     this.videoService.getUserVideoRating(this.video.id)
 545         .subscribe(
 546           ratingObject => {
 547             if (ratingObject) {
 548               this.userRating = ratingObject.rating
 549             }
 550           },
 551
 552           err => this.notifier.error(err.message)
 553         )
 554   }
 555
 556   private async onVideoFetched (
 557     video: VideoDetails,
 558     videoCaptions: VideoCaption[],
 559     urlOptions: URLOptions
 560   ) {
 561     this.subscribeToLiveEventsIfNeeded(this.video, video)
 562
 563     this.video = video
 564     this.videoCaptions = videoCaptions
 565
 566     // Re init attributes
 567     this.playerPlaceholderImgSrc = undefined
 568     this.descriptionLoading = false
 569     this.completeDescriptionShown = false
 570     this.completeVideoDescription = undefined
 571     this.remoteServerDown = false
 572     this.currentTime = undefined
 573
 574     if (this.isVideoBlur(this.video)) {
 575       const res = await this.confirmService.confirm(
 576         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 577         $localize`Mature or explicit content`
 578       )
 579       if (res === false) return this.location.back()
 580     }
 581
 582     this.buildPlayer(urlOptions)
 583       .catch(err => console.error('Cannot build the player', err))
 584
 585     this.setVideoDescriptionHTML()
 586     this.setVideoLikesBarTooltipText()
 587
 588     this.setOpenGraphTags()
 589     this.checkUserRating()
 590
 591     const hookOptions = {
 592       videojs,
 593       video: this.video,
 594       playlist: this.playlist
 595     }
 596     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', hookOptions)
 597   }
 598
 599   private async buildPlayer (urlOptions: URLOptions) {
 600     // Flush old player if needed
 601     this.flushPlayer()
 602
 603     const videoState = this.video.state.id
 604     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) {
 605       this.playerPlaceholderImgSrc = this.video.previewPath
 606       return
 607     }
 608
 609     // Build video element, because videojs removes it on dispose
 610     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 611     this.playerElement = document.createElement('video')
 612     this.playerElement.className = 'video-js vjs-peertube-skin'
 613     this.playerElement.setAttribute('playsinline', 'true')
 614     playerElementWrapper.appendChild(this.playerElement)
 615
 616     const params = {
 617       video: this.video,
 618       videoCaptions: this.videoCaptions,
 619       urlOptions,
 620       user: this.user
 621     }
 622     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 623       this.buildPlayerManagerOptions.bind(this),
 624       params,
 625       'video-watch',
 626       'filter:internal.video-watch.player.build-options.params',
 627       'filter:internal.video-watch.player.build-options.result'
 628     )
 629
 630     this.zone.runOutsideAngular(async () => {
 631       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 632
 633       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 634
 635       this.player.on('timeupdate', () => {
 636         this.currentTime = Math.floor(this.player.currentTime())
 637       })
 638
 639       /**
 640        * replaces this.player.one('ended')
 641        * 'condition()': true to make the upnext functionality trigger,
 642        *                false to disable the upnext functionality
 643        * go to the next video in 'condition()' if you don't want of the timer.
 644        * 'next': function triggered at the end of the timer.
 645        * 'suspended': function used at each clic of the timer checking if we need
 646        * to reset progress and wait until 'suspended' becomes truthy again.
 647        */
 648       this.player.upnext({
 649         timeout: 10000, // 10s
 650         headText: $localize`Up Next`,
 651         cancelText: $localize`Cancel`,
 652         suspendedText: $localize`Autoplay is suspended`,
 653         getTitle: () => this.nextVideoTitle,
 654         next: () => this.zone.run(() => this.autoplayNext()),
 655         condition: () => {
 656           if (this.playlist) {
 657             if (this.isPlaylistAutoPlayEnabled()) {
 658               // upnext will not trigger, and instead the next video will play immediately
 659               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 660             }
 661           } else if (this.isAutoPlayEnabled()) {
 662             return true // upnext will trigger
 663           }
 664           return false // upnext will not trigger, and instead leave the video stopping
 665         },
 666         suspended: () => {
 667           return (
 668             !isXPercentInViewport(this.player.el(), 80) ||
 669             !document.getElementById('content').contains(document.activeElement)
 670           )
 671         }
 672       })
 673
 674       this.player.one('stopped', () => {
 675         if (this.playlist) {
 676           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 677         }
 678       })
 679
 680       this.player.one('ended', () => {
 681         if (this.video.isLive) {
 682           this.zone.run(() => this.video.state.id = VideoState.LIVE_ENDED)
 683         }
 684       })
 685
 686       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 687         this.zone.run(() => this.theaterEnabled = enabled)
 688       })
 689
 690       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 691     })
 692   }
 693
 694   private autoplayNext () {
 695     if (this.playlist) {
 696       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 697     } else if (this.nextVideoUuid) {
 698       this.router.navigate([ '/w', this.nextVideoUuid ])
 699     }
 700   }
 701
 702   private setRating (nextRating: UserVideoRateType) {
 703     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 704       like: this.videoService.setVideoLike,
 705       dislike: this.videoService.setVideoDislike,
 706       none: this.videoService.unsetVideoLike
 707     }
 708
 709     ratingMethods[nextRating].call(this.videoService, this.video.id)
 710           .subscribe(
 711             () => {
 712               // Update the video like attribute
 713               this.updateVideoRating(this.userRating, nextRating)
 714               this.userRating = nextRating
 715             },
 716
 717             (err: { message: string }) => this.notifier.error(err.message)
 718           )
 719   }
 720
 721   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 722     let likesToIncrement = 0
 723     let dislikesToIncrement = 0
 724
 725     if (oldRating) {
 726       if (oldRating === 'like') likesToIncrement--
 727       if (oldRating === 'dislike') dislikesToIncrement--
 728     }
 729
 730     if (newRating === 'like') likesToIncrement++
 731     if (newRating === 'dislike') dislikesToIncrement++
 732
 733     this.video.likes += likesToIncrement
 734     this.video.dislikes += dislikesToIncrement
 735
 736     this.video.buildLikeAndDislikePercents()
 737     this.setVideoLikesBarTooltipText()
 738   }
 739
 740   private setOpenGraphTags () {
 741     this.metaService.setTitle(this.video.name)
 742
 743     this.metaService.setTag('og:type', 'video')
 744
 745     this.metaService.setTag('og:title', this.video.name)
 746     this.metaService.setTag('name', this.video.name)
 747
 748     this.metaService.setTag('og:description', this.video.description)
 749     this.metaService.setTag('description', this.video.description)
 750
 751     this.metaService.setTag('og:image', this.video.previewPath)
 752
 753     this.metaService.setTag('og:duration', this.video.duration.toString())
 754
 755     this.metaService.setTag('og:site_name', 'PeerTube')
 756
 757     this.metaService.setTag('og:url', window.location.href)
 758     this.metaService.setTag('url', window.location.href)
 759   }
 760
 761   private isAutoplay () {
 762     // We'll jump to the thread id, so do not play the video
 763     if (this.route.snapshot.params['threadId']) return false
 764
 765     // Otherwise true by default
 766     if (!this.user) return true
 767
 768     // Be sure the autoPlay is set to false
 769     return this.user.autoPlayVideo !== false
 770   }
 771
 772   private flushPlayer () {
 773     // Remove player if it exists
 774     if (this.player) {
 775       try {
 776         this.player.dispose()
 777         this.player = undefined
 778       } catch (err) {
 779         console.error('Cannot dispose player.', err)
 780       }
 781     }
 782   }
 783
 784   private buildPlayerManagerOptions (params: {
 785     video: VideoDetails,
 786     videoCaptions: VideoCaption[],
 787     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 788     user?: AuthUser
 789   }) {
 790     const { video, videoCaptions, urlOptions, user } = params
 791     const getStartTime = () => {
 792       const byUrl = urlOptions.startTime !== undefined
 793       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 794       const byLocalStorage = getStoredVideoWatchHistory(video.uuid)
 795
 796       if (byUrl) return timeToInt(urlOptions.startTime)
 797       if (byHistory) return video.userHistory.currentTime
 798       if (byLocalStorage) return byLocalStorage.duration
 799
 800       return 0
 801     }
 802
 803     let startTime = getStartTime()
 804
 805     // If we are at the end of the video, reset the timer
 806     if (video.duration - startTime <= 1) startTime = 0
 807
 808     const playerCaptions = videoCaptions.map(c => ({
 809       label: c.language.label,
 810       language: c.language.id,
 811       src: environment.apiUrl + c.captionPath
 812     }))
 813
 814     const options: PeertubePlayerManagerOptions = {
 815       common: {
 816         autoplay: this.isAutoplay(),
 817         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 818
 819         playerElement: this.playerElement,
 820         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 821
 822         videoDuration: video.duration,
 823         enableHotkeys: true,
 824         inactivityTimeout: 2500,
 825         poster: video.previewUrl,
 826
 827         startTime,
 828         stopTime: urlOptions.stopTime,
 829         controls: urlOptions.controls,
 830         muted: urlOptions.muted,
 831         loop: urlOptions.loop,
 832         subtitle: urlOptions.subtitle,
 833
 834         peertubeLink: urlOptions.peertubeLink,
 835
 836         theaterButton: true,
 837         captions: videoCaptions.length !== 0,
 838
 839         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 840           ? this.videoService.getVideoViewUrl(video.uuid)
 841           : null,
 842         embedUrl: video.embedUrl,
 843         embedTitle: video.name,
 844
 845         isLive: video.isLive,
 846
 847         language: this.localeId,
 848
 849         userWatching: user && user.videosHistoryEnabled === true ? {
 850           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 851           authorizationHeader: this.authService.getRequestHeaderValue()
 852         } : undefined,
 853
 854         serverUrl: environment.apiUrl,
 855
 856         videoCaptions: playerCaptions,
 857
 858         videoUUID: video.uuid
 859       },
 860
 861       webtorrent: {
 862         videoFiles: video.files
 863       }
 864     }
 865
 866     // Only set this if we're in a playlist
 867     if (this.playlist) {
 868       options.common.previousVideo = () => {
 869         this.zone.run(() => this.videoWatchPlaylist.navigateToPreviousPlaylistVideo())
 870       }
 871     }
 872
 873     let mode: PlayerMode
 874
 875     if (urlOptions.playerMode) {
 876       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 877       else mode = 'webtorrent'
 878     } else {
 879       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 880       else mode = 'webtorrent'
 881     }
 882
 883     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 884     if (typeof TextEncoder === 'undefined') {
 885       mode = 'webtorrent'
 886     }
 887
 888     if (mode === 'p2p-media-loader') {
 889       const hlsPlaylist = video.getHlsPlaylist()
 890
 891       const p2pMediaLoader = {
 892         playlistUrl: hlsPlaylist.playlistUrl,
 893         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 894         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 895         trackerAnnounce: video.trackerUrls,
 896         videoFiles: hlsPlaylist.files
 897       } as P2PMediaLoaderOptions
 898
 899       Object.assign(options, { p2pMediaLoader })
 900     }
 901
 902     return { playerMode: mode, playerOptions: options }
 903   }
 904
 905   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 906     if (!this.liveVideosSub) {
 907       this.liveVideosSub = this.buildLiveEventsSubscription()
 908     }
 909
 910     if (oldVideo && oldVideo.id !== newVideo.id) {
 911       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 912     }
 913
 914     if (!newVideo.isLive) return
 915
 916     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 917   }
 918
 919   private buildLiveEventsSubscription () {
 920     return this.peertubeSocket.getLiveVideosObservable()
 921       .subscribe(({ type, payload }) => {
 922         if (type === 'state-change') return this.handleLiveStateChange(payload.state)
 923         if (type === 'views-change') return this.handleLiveViewsChange(payload.views)
 924       })
 925   }
 926
 927   private handleLiveStateChange (newState: VideoState) {
 928     if (newState !== VideoState.PUBLISHED) return
 929
 930     const videoState = this.video.state.id
 931     if (videoState !== VideoState.WAITING_FOR_LIVE && videoState !== VideoState.LIVE_ENDED) return
 932
 933     console.log('Loading video after live update.')
 934
 935     const videoUUID = this.video.uuid
 936
 937     // Reset to refetch the video
 938     this.video = undefined
 939     this.loadVideo(videoUUID)
 940   }
 941
 942   private handleLiveViewsChange (newViews: number) {
 943     if (!this.video) {
 944       console.error('Cannot update video live views because video is no defined.')
 945       return
 946     }
 947
 948     console.log('Updating live views.')
 949
 950     this.video.views = newViews
 951   }
 952
 953   private initHotkeys () {
 954     this.hotkeys = [
 955       // These hotkeys are managed by the player
 956       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 957       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 958       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 959
 960       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)`),
 961
 962       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 963       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 964
 965       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 966       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 967
 968       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 969       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 970
 971       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 972     ]
 973
 974     if (this.isUserLoggedIn()) {
 975       this.hotkeys = this.hotkeys.concat([
 976         new Hotkey('shift+l', () => {
 977           this.setLike()
 978           return false
 979         }, undefined, $localize`Like the video`),
 980
 981         new Hotkey('shift+d', () => {
 982           this.setDislike()
 983           return false
 984         }, undefined, $localize`Dislike the video`),
 985
 986         new Hotkey('shift+s', () => {
 987           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 988           return false
 989         }, undefined, $localize`Subscribe to the account`)
 990       ])
 991     }
 992
 993     this.hotkeysService.add(this.hotkeys)
 994   }
 995 }