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