client/src/app/+videos/+video-watch/video-watch.component.ts

   1 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   2 import { forkJoin, Observable, Subscription } from 'rxjs'
   3 import { catchError } from 'rxjs/operators'
   4 import { PlatformLocation } from '@angular/common'
   5 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   6 import { ActivatedRoute, Router } from '@angular/router'
   7 import {
   8   AuthService,
   9   AuthUser,
  10   ConfirmService,
  11   MarkdownService,
  12   Notifier,
  13   PeerTubeSocket,
  14   RestExtractor,
  15   ServerService,
  16   UserService
  17 } from '@app/core'
  18 import { HooksService } from '@app/core/plugins/hooks.service'
  19 import { RedirectService } from '@app/core/routing/redirect.service'
  20 import { isXPercentInViewport, scrollToTop } from '@app/helpers'
  21 import { Video, VideoCaptionService, VideoDetails, VideoService } from '@app/shared/shared-main'
  22 import { VideoShareComponent } from '@app/shared/shared-share-modal'
  23 import { SubscribeButtonComponent } from '@app/shared/shared-user-subscription'
  24 import { VideoActionsDisplayType, VideoDownloadComponent } from '@app/shared/shared-video-miniature'
  25 import { VideoPlaylist, VideoPlaylistService } from '@app/shared/shared-video-playlist'
  26 import { MetaService } from '@ngx-meta/core'
  27 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  28 import { ServerConfig, ServerErrorCode, UserVideoRateType, VideoCaption, VideoPrivacy, VideoState } from '@shared/models'
  29 import { getStoredP2PEnabled, getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
  30 import {
  31   CustomizationOptions,
  32   P2PMediaLoaderOptions,
  33   PeertubePlayerManager,
  34   PeertubePlayerManagerOptions,
  35   PlayerMode,
  36   videojs
  37 } from '../../../assets/player/peertube-player-manager'
  38 import { isWebRTCDisabled, timeToInt } from '../../../assets/player/utils'
  39 import { environment } from '../../../environments/environment'
  40 import { VideoSupportComponent } from './modal/video-support.component'
  41 import { VideoWatchPlaylistComponent } from './video-watch-playlist.component'
  42
  43 type URLOptions = CustomizationOptions & { playerMode: PlayerMode }
  44
  45 @Component({
  46   selector: 'my-video-watch',
  47   templateUrl: './video-watch.component.html',
  48   styleUrls: [ './video-watch.component.scss' ]
  49 })
  50 export class VideoWatchComponent implements OnInit, OnDestroy {
  51   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  52
  53   @ViewChild('videoWatchPlaylist', { static: true }) videoWatchPlaylist: VideoWatchPlaylistComponent
  54   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  55   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  56   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  57   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  58
  59   player: any
  60   playerElement: HTMLVideoElement
  61   theaterEnabled = false
  62   userRating: UserVideoRateType = null
  63   descriptionLoading = false
  64
  65   video: VideoDetails = null
  66   videoCaptions: VideoCaption[] = []
  67
  68   playlistPosition: number
  69   playlist: VideoPlaylist = null
  70
  71   completeDescriptionShown = false
  72   completeVideoDescription: string
  73   shortVideoDescription: string
  74   videoHTMLDescription = ''
  75   likesBarTooltipText = ''
  76   hasAlreadyAcceptedPrivacyConcern = false
  77   remoteServerDown = false
  78   hotkeys: Hotkey[] = []
  79
  80   tooltipLike = ''
  81   tooltipDislike = ''
  82   tooltipSupport = ''
  83   tooltipSaveToPlaylist = ''
  84
  85   videoActionsOptions: VideoActionsDisplayType = {
  86     playlist: false,
  87     download: true,
  88     update: true,
  89     blacklist: true,
  90     delete: true,
  91     report: true,
  92     duplicate: true,
  93     mute: true,
  94     liveInfo: true
  95   }
  96
  97   private nextVideoUuid = ''
  98   private nextVideoTitle = ''
  99   private currentTime: number
 100   private paramsSub: Subscription
 101   private queryParamsSub: Subscription
 102   private configSub: Subscription
 103   private liveVideosSub: Subscription
 104
 105   private serverConfig: ServerConfig
 106
 107   constructor (
 108     private elementRef: ElementRef,
 109     private changeDetector: ChangeDetectorRef,
 110     private route: ActivatedRoute,
 111     private router: Router,
 112     private videoService: VideoService,
 113     private playlistService: VideoPlaylistService,
 114     private confirmService: ConfirmService,
 115     private metaService: MetaService,
 116     private authService: AuthService,
 117     private userService: UserService,
 118     private serverService: ServerService,
 119     private restExtractor: RestExtractor,
 120     private notifier: Notifier,
 121     private markdownService: MarkdownService,
 122     private zone: NgZone,
 123     private redirectService: RedirectService,
 124     private videoCaptionService: VideoCaptionService,
 125     private hotkeysService: HotkeysService,
 126     private hooks: HooksService,
 127     private peertubeSocket: PeerTubeSocket,
 128     private location: PlatformLocation,
 129     @Inject(LOCALE_ID) private localeId: string
 130   ) {
 131     this.tooltipLike = $localize`Like this video`
 132     this.tooltipDislike = $localize`Dislike this video`
 133     this.tooltipSupport = $localize`Support options for this video`
 134     this.tooltipSaveToPlaylist = $localize`Save to playlist`
 135   }
 136
 137   get user () {
 138     return this.authService.getUser()
 139   }
 140
 141   get anonymousUser () {
 142     return this.userService.getAnonymousUser()
 143   }
 144
 145   async ngOnInit () {
 146     PeertubePlayerManager.initState()
 147
 148     this.serverConfig = this.serverService.getTmpConfig()
 149
 150     this.configSub = this.serverService.getConfig()
 151         .subscribe(config => {
 152           this.serverConfig = config
 153
 154           if (
 155             isWebRTCDisabled() ||
 156             this.serverConfig.tracker.enabled === false ||
 157             getStoredP2PEnabled() === false ||
 158             peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 159           ) {
 160             this.hasAlreadyAcceptedPrivacyConcern = true
 161           }
 162         })
 163
 164     this.paramsSub = this.route.params.subscribe(routeParams => {
 165       const videoId = routeParams[ 'videoId' ]
 166       if (videoId) this.loadVideo(videoId)
 167
 168       const playlistId = routeParams[ 'playlistId' ]
 169       if (playlistId) this.loadPlaylist(playlistId)
 170     })
 171
 172     this.queryParamsSub = this.route.queryParams.subscribe(queryParams => {
 173       this.playlistPosition = queryParams[ 'playlistPosition' ]
 174       this.videoWatchPlaylist.updatePlaylistIndex(this.playlistPosition)
 175
 176       const start = queryParams[ 'start' ]
 177       if (this.player && start) this.player.currentTime(parseInt(start, 10))
 178     })
 179
 180     this.initHotkeys()
 181
 182     this.theaterEnabled = getStoredTheater()
 183
 184     this.hooks.runAction('action:video-watch.init', 'video-watch')
 185   }
 186
 187   ngOnDestroy () {
 188     this.flushPlayer()
 189
 190     // Unsubscribe subscriptions
 191     if (this.paramsSub) this.paramsSub.unsubscribe()
 192     if (this.queryParamsSub) this.queryParamsSub.unsubscribe()
 193     if (this.configSub) this.configSub.unsubscribe()
 194     if (this.liveVideosSub) this.liveVideosSub.unsubscribe()
 195
 196     // Unbind hotkeys
 197     this.hotkeysService.remove(this.hotkeys)
 198   }
 199
 200   setLike () {
 201     if (this.isUserLoggedIn() === false) return
 202
 203     // Already liked this video
 204     if (this.userRating === 'like') this.setRating('none')
 205     else this.setRating('like')
 206   }
 207
 208   setDislike () {
 209     if (this.isUserLoggedIn() === false) return
 210
 211     // Already disliked this video
 212     if (this.userRating === 'dislike') this.setRating('none')
 213     else this.setRating('dislike')
 214   }
 215
 216   getRatePopoverText () {
 217     if (this.isUserLoggedIn()) return undefined
 218
 219     return $localize`You need to be <a href="/login">logged in</a> to rate this video.`
 220   }
 221
 222   showMoreDescription () {
 223     if (this.completeVideoDescription === undefined) {
 224       return this.loadCompleteDescription()
 225     }
 226
 227     this.updateVideoDescription(this.completeVideoDescription)
 228     this.completeDescriptionShown = true
 229   }
 230
 231   showLessDescription () {
 232     this.updateVideoDescription(this.shortVideoDescription)
 233     this.completeDescriptionShown = false
 234   }
 235
 236   showDownloadModal () {
 237     this.videoDownloadModal.show(this.video, this.videoCaptions)
 238   }
 239
 240   isVideoDownloadable () {
 241     return this.video && this.video instanceof VideoDetails && this.video.downloadEnabled && !this.video.isLive
 242   }
 243
 244   loadCompleteDescription () {
 245     this.descriptionLoading = true
 246
 247     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 248         .subscribe(
 249           description => {
 250             this.completeDescriptionShown = true
 251             this.descriptionLoading = false
 252
 253             this.shortVideoDescription = this.video.description
 254             this.completeVideoDescription = description
 255
 256             this.updateVideoDescription(this.completeVideoDescription)
 257           },
 258
 259           error => {
 260             this.descriptionLoading = false
 261             this.notifier.error(error.message)
 262           }
 263         )
 264   }
 265
 266   showSupportModal () {
 267     // Check video was playing before opening support modal
 268     const isVideoPlaying = this.isPlaying()
 269
 270     this.pausePlayer()
 271
 272     const modalRef = this.videoSupportModal.show()
 273
 274     modalRef.result.then(() => {
 275       if (isVideoPlaying) {
 276         this.resumePlayer()
 277       }
 278     })
 279   }
 280
 281   showShareModal () {
 282     this.pausePlayer()
 283
 284     this.videoShareModal.show(this.currentTime, this.videoWatchPlaylist.currentPlaylistPosition)
 285   }
 286
 287   isUserLoggedIn () {
 288     return this.authService.isLoggedIn()
 289   }
 290
 291   getVideoTags () {
 292     if (!this.video || Array.isArray(this.video.tags) === false) return []
 293
 294     return this.video.tags
 295   }
 296
 297   onRecommendations (videos: Video[]) {
 298     if (videos.length > 0) {
 299       // The recommended videos's first element should be the next video
 300       const video = videos[0]
 301       this.nextVideoUuid = video.uuid
 302       this.nextVideoTitle = video.name
 303     }
 304   }
 305
 306   onModalOpened () {
 307     this.pausePlayer()
 308   }
 309
 310   onVideoRemoved () {
 311     this.redirectService.redirectToHomepage()
 312   }
 313
 314   declinedPrivacyConcern () {
 315     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'false')
 316     this.hasAlreadyAcceptedPrivacyConcern = false
 317   }
 318
 319   acceptedPrivacyConcern () {
 320     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 321     this.hasAlreadyAcceptedPrivacyConcern = true
 322   }
 323
 324   isVideoToTranscode () {
 325     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 326   }
 327
 328   isVideoToImport () {
 329     return this.video && this.video.state.id === VideoState.TO_IMPORT
 330   }
 331
 332   hasVideoScheduledPublication () {
 333     return this.video && this.video.scheduledUpdate !== undefined
 334   }
 335
 336   isLive () {
 337     return !!(this.video?.isLive)
 338   }
 339
 340   isWaitingForLive () {
 341     return this.video?.state.id === VideoState.WAITING_FOR_LIVE
 342   }
 343
 344   isLiveEnded () {
 345     return this.video?.state.id === VideoState.LIVE_ENDED
 346   }
 347
 348   isVideoBlur (video: Video) {
 349     return video.isVideoNSFWForUser(this.user, this.serverConfig)
 350   }
 351
 352   isAutoPlayEnabled () {
 353     return (
 354       (this.user && this.user.autoPlayNextVideo) ||
 355       this.anonymousUser.autoPlayNextVideo
 356     )
 357   }
 358
 359   handleTimestampClicked (timestamp: number) {
 360     if (this.player) this.player.currentTime(timestamp)
 361     scrollToTop()
 362   }
 363
 364   isPlaylistAutoPlayEnabled () {
 365     return (
 366       (this.user && this.user.autoPlayNextVideoPlaylist) ||
 367       this.anonymousUser.autoPlayNextVideoPlaylist
 368     )
 369   }
 370
 371   isChannelDisplayNameGeneric () {
 372     const genericChannelDisplayName = [
 373       `Main ${this.video.channel.ownerAccount.name} channel`,
 374       `Default ${this.video.channel.ownerAccount.name} channel`
 375     ]
 376
 377     return genericChannelDisplayName.includes(this.video.channel.displayName)
 378   }
 379
 380   onPlaylistVideoFound (videoId: string) {
 381     this.loadVideo(videoId)
 382   }
 383
 384   private loadVideo (videoId: string) {
 385     // Video did not change
 386     if (this.video && this.video.uuid === videoId) return
 387
 388     if (this.player) this.player.pause()
 389
 390     const videoObs = this.hooks.wrapObsFun(
 391       this.videoService.getVideo.bind(this.videoService),
 392       { videoId },
 393       'video-watch',
 394       'filter:api.video-watch.video.get.params',
 395       'filter:api.video-watch.video.get.result'
 396     )
 397
 398     // Video did change
 399     forkJoin([
 400       videoObs,
 401       this.videoCaptionService.listCaptions(videoId)
 402     ])
 403       .pipe(
 404         // If 401, the video is private or blocked so redirect to 404
 405         catchError(err => {
 406           if (err.body.errorCode === ServerErrorCode.DOES_NOT_RESPECT_FOLLOW_CONSTRAINTS && err.body.originUrl) {
 407             const search = window.location.search
 408             let originUrl = err.body.originUrl
 409             if (search) originUrl += search
 410
 411             this.confirmService.confirm(
 412               $localize`This video is not available on this instance. Do you want to be redirected on the origin instance: <a href="${originUrl}">${originUrl}</a>?`,
 413               $localize`Redirection`
 414             ).then(res => {
 415               if (res === false) return this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ])
 416
 417               return window.location.href = originUrl
 418             })
 419           }
 420
 421           return this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ])
 422         })
 423       )
 424       .subscribe(([ video, captionsResult ]) => {
 425         const queryParams = this.route.snapshot.queryParams
 426
 427         const urlOptions = {
 428           resume: queryParams.resume,
 429
 430           startTime: queryParams.start,
 431           stopTime: queryParams.stop,
 432
 433           muted: queryParams.muted,
 434           loop: queryParams.loop,
 435           subtitle: queryParams.subtitle,
 436
 437           playerMode: queryParams.mode,
 438           peertubeLink: false
 439         }
 440
 441         this.onVideoFetched(video, captionsResult.data, urlOptions)
 442             .catch(err => this.handleError(err))
 443       })
 444   }
 445
 446   private loadPlaylist (playlistId: string) {
 447     // Playlist did not change
 448     if (this.playlist && this.playlist.uuid === playlistId) return
 449
 450     this.playlistService.getVideoPlaylist(playlistId)
 451       .pipe(
 452         // If 401, the video is private or blocked so redirect to 404
 453         catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 403, 404 ]))
 454       )
 455       .subscribe(playlist => {
 456         this.playlist = playlist
 457
 458         this.videoWatchPlaylist.loadPlaylistElements(playlist, !this.playlistPosition, this.playlistPosition)
 459       })
 460   }
 461
 462   private updateVideoDescription (description: string) {
 463     this.video.description = description
 464     this.setVideoDescriptionHTML()
 465       .catch(err => console.error(err))
 466   }
 467
 468   private async setVideoDescriptionHTML () {
 469     const html = await this.markdownService.textMarkdownToHTML(this.video.description)
 470     this.videoHTMLDescription = await this.markdownService.processVideoTimestamps(html)
 471   }
 472
 473   private setVideoLikesBarTooltipText () {
 474     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 475   }
 476
 477   private handleError (err: any) {
 478     const errorMessage: string = typeof err === 'string' ? err : err.message
 479     if (!errorMessage) return
 480
 481     // Display a message in the video player instead of a notification
 482     if (errorMessage.indexOf('from xs param') !== -1) {
 483       this.flushPlayer()
 484       this.remoteServerDown = true
 485       this.changeDetector.detectChanges()
 486
 487       return
 488     }
 489
 490     this.notifier.error(errorMessage)
 491   }
 492
 493   private checkUserRating () {
 494     // Unlogged users do not have ratings
 495     if (this.isUserLoggedIn() === false) return
 496
 497     this.videoService.getUserVideoRating(this.video.id)
 498         .subscribe(
 499           ratingObject => {
 500             if (ratingObject) {
 501               this.userRating = ratingObject.rating
 502             }
 503           },
 504
 505           err => this.notifier.error(err.message)
 506         )
 507   }
 508
 509   private async onVideoFetched (
 510     video: VideoDetails,
 511     videoCaptions: VideoCaption[],
 512     urlOptions: URLOptions
 513   ) {
 514     this.subscribeToLiveEventsIfNeeded(this.video, video)
 515
 516     this.video = video
 517     this.videoCaptions = videoCaptions
 518
 519     // Re init attributes
 520     this.descriptionLoading = false
 521     this.completeDescriptionShown = false
 522     this.remoteServerDown = false
 523     this.currentTime = undefined
 524
 525     if (this.isVideoBlur(this.video)) {
 526       const res = await this.confirmService.confirm(
 527         $localize`This video contains mature or explicit content. Are you sure you want to watch it?`,
 528         $localize`Mature or explicit content`
 529       )
 530       if (res === false) return this.location.back()
 531     }
 532
 533     const videoState = this.video.state.id
 534     if (videoState === VideoState.LIVE_ENDED || videoState === VideoState.WAITING_FOR_LIVE) return
 535
 536     // Flush old player if needed
 537     this.flushPlayer()
 538
 539     // Build video element, because videojs removes it on dispose
 540     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
 541     this.playerElement = document.createElement('video')
 542     this.playerElement.className = 'video-js vjs-peertube-skin'
 543     this.playerElement.setAttribute('playsinline', 'true')
 544     playerElementWrapper.appendChild(this.playerElement)
 545
 546     const params = {
 547       video: this.video,
 548       videoCaptions,
 549       urlOptions,
 550       user: this.user
 551     }
 552     const { playerMode, playerOptions } = await this.hooks.wrapFun(
 553       this.buildPlayerManagerOptions.bind(this),
 554       params,
 555       'video-watch',
 556       'filter:internal.video-watch.player.build-options.params',
 557       'filter:internal.video-watch.player.build-options.result'
 558     )
 559
 560     this.zone.runOutsideAngular(async () => {
 561       this.player = await PeertubePlayerManager.initialize(playerMode, playerOptions, player => this.player = player)
 562
 563       this.player.on('customError', ({ err }: { err: any }) => this.handleError(err))
 564
 565       this.player.on('timeupdate', () => {
 566         this.currentTime = Math.floor(this.player.currentTime())
 567       })
 568
 569       /**
 570        * replaces this.player.one('ended')
 571        * 'condition()': true to make the upnext functionality trigger,
 572        *                false to disable the upnext functionality
 573        * go to the next video in 'condition()' if you don't want of the timer.
 574        * 'next': function triggered at the end of the timer.
 575        * 'suspended': function used at each clic of the timer checking if we need
 576        * to reset progress and wait until 'suspended' becomes truthy again.
 577        */
 578       this.player.upnext({
 579         timeout: 10000, // 10s
 580         headText: $localize`Up Next`,
 581         cancelText: $localize`Cancel`,
 582         suspendedText: $localize`Autoplay is suspended`,
 583         getTitle: () => this.nextVideoTitle,
 584         next: () => this.zone.run(() => this.autoplayNext()),
 585         condition: () => {
 586           if (this.playlist) {
 587             if (this.isPlaylistAutoPlayEnabled()) {
 588               // upnext will not trigger, and instead the next video will play immediately
 589               this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 590             }
 591           } else if (this.isAutoPlayEnabled()) {
 592             return true // upnext will trigger
 593           }
 594           return false // upnext will not trigger, and instead leave the video stopping
 595         },
 596         suspended: () => {
 597           return (
 598             !isXPercentInViewport(this.player.el(), 80) ||
 599             !document.getElementById('content').contains(document.activeElement)
 600           )
 601         }
 602       })
 603
 604       this.player.one('stopped', () => {
 605         if (this.playlist) {
 606           if (this.isPlaylistAutoPlayEnabled()) this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 607         }
 608       })
 609
 610       this.player.on('theaterChange', (_: any, enabled: boolean) => {
 611         this.zone.run(() => this.theaterEnabled = enabled)
 612       })
 613
 614       this.hooks.runAction('action:video-watch.player.loaded', 'video-watch', { player: this.player, videojs, video: this.video })
 615     })
 616
 617     this.setVideoDescriptionHTML()
 618     this.setVideoLikesBarTooltipText()
 619
 620     this.setOpenGraphTags()
 621     this.checkUserRating()
 622
 623     this.hooks.runAction('action:video-watch.video.loaded', 'video-watch', { videojs })
 624   }
 625
 626   private autoplayNext () {
 627     if (this.playlist) {
 628       this.zone.run(() => this.videoWatchPlaylist.navigateToNextPlaylistVideo())
 629     } else if (this.nextVideoUuid) {
 630       this.router.navigate([ '/videos/watch', this.nextVideoUuid ])
 631     }
 632   }
 633
 634   private setRating (nextRating: UserVideoRateType) {
 635     const ratingMethods: { [id in UserVideoRateType]: (id: number) => Observable<any> } = {
 636       like: this.videoService.setVideoLike,
 637       dislike: this.videoService.setVideoDislike,
 638       none: this.videoService.unsetVideoLike
 639     }
 640
 641     ratingMethods[nextRating].call(this.videoService, this.video.id)
 642           .subscribe(
 643             () => {
 644               // Update the video like attribute
 645               this.updateVideoRating(this.userRating, nextRating)
 646               this.userRating = nextRating
 647             },
 648
 649             (err: { message: string }) => this.notifier.error(err.message)
 650           )
 651   }
 652
 653   private updateVideoRating (oldRating: UserVideoRateType, newRating: UserVideoRateType) {
 654     let likesToIncrement = 0
 655     let dislikesToIncrement = 0
 656
 657     if (oldRating) {
 658       if (oldRating === 'like') likesToIncrement--
 659       if (oldRating === 'dislike') dislikesToIncrement--
 660     }
 661
 662     if (newRating === 'like') likesToIncrement++
 663     if (newRating === 'dislike') dislikesToIncrement++
 664
 665     this.video.likes += likesToIncrement
 666     this.video.dislikes += dislikesToIncrement
 667
 668     this.video.buildLikeAndDislikePercents()
 669     this.setVideoLikesBarTooltipText()
 670   }
 671
 672   private setOpenGraphTags () {
 673     this.metaService.setTitle(this.video.name)
 674
 675     this.metaService.setTag('og:type', 'video')
 676
 677     this.metaService.setTag('og:title', this.video.name)
 678     this.metaService.setTag('name', this.video.name)
 679
 680     this.metaService.setTag('og:description', this.video.description)
 681     this.metaService.setTag('description', this.video.description)
 682
 683     this.metaService.setTag('og:image', this.video.previewPath)
 684
 685     this.metaService.setTag('og:duration', this.video.duration.toString())
 686
 687     this.metaService.setTag('og:site_name', 'PeerTube')
 688
 689     this.metaService.setTag('og:url', window.location.href)
 690     this.metaService.setTag('url', window.location.href)
 691   }
 692
 693   private isAutoplay () {
 694     // We'll jump to the thread id, so do not play the video
 695     if (this.route.snapshot.params['threadId']) return false
 696
 697     // Otherwise true by default
 698     if (!this.user) return true
 699
 700     // Be sure the autoPlay is set to false
 701     return this.user.autoPlayVideo !== false
 702   }
 703
 704   private flushPlayer () {
 705     // Remove player if it exists
 706     if (this.player) {
 707       try {
 708         this.player.dispose()
 709         this.player = undefined
 710       } catch (err) {
 711         console.error('Cannot dispose player.', err)
 712       }
 713     }
 714   }
 715
 716   private buildPlayerManagerOptions (params: {
 717     video: VideoDetails,
 718     videoCaptions: VideoCaption[],
 719     urlOptions: CustomizationOptions & { playerMode: PlayerMode },
 720     user?: AuthUser
 721   }) {
 722     const { video, videoCaptions, urlOptions, user } = params
 723     const getStartTime = () => {
 724       const byUrl = urlOptions.startTime !== undefined
 725       const byHistory = video.userHistory && (!this.playlist || urlOptions.resume !== undefined)
 726
 727       if (byUrl) return timeToInt(urlOptions.startTime)
 728       if (byHistory) return video.userHistory.currentTime
 729
 730       return 0
 731     }
 732
 733     let startTime = getStartTime()
 734
 735     // If we are at the end of the video, reset the timer
 736     if (video.duration - startTime <= 1) startTime = 0
 737
 738     const playerCaptions = videoCaptions.map(c => ({
 739       label: c.language.label,
 740       language: c.language.id,
 741       src: environment.apiUrl + c.captionPath
 742     }))
 743
 744     const options: PeertubePlayerManagerOptions = {
 745       common: {
 746         autoplay: this.isAutoplay(),
 747         nextVideo: () => this.zone.run(() => this.autoplayNext()),
 748
 749         playerElement: this.playerElement,
 750         onPlayerElementChange: (element: HTMLVideoElement) => this.playerElement = element,
 751
 752         videoDuration: video.duration,
 753         enableHotkeys: true,
 754         inactivityTimeout: 2500,
 755         poster: video.previewUrl,
 756
 757         startTime,
 758         stopTime: urlOptions.stopTime,
 759         controls: urlOptions.controls,
 760         muted: urlOptions.muted,
 761         loop: urlOptions.loop,
 762         subtitle: urlOptions.subtitle,
 763
 764         peertubeLink: urlOptions.peertubeLink,
 765
 766         theaterButton: true,
 767         captions: videoCaptions.length !== 0,
 768
 769         videoViewUrl: video.privacy.id !== VideoPrivacy.PRIVATE
 770           ? this.videoService.getVideoViewUrl(video.uuid)
 771           : null,
 772         embedUrl: video.embedUrl,
 773
 774         isLive: video.isLive,
 775
 776         language: this.localeId,
 777
 778         userWatching: user && user.videosHistoryEnabled === true ? {
 779           url: this.videoService.getUserWatchingVideoUrl(video.uuid),
 780           authorizationHeader: this.authService.getRequestHeaderValue()
 781         } : undefined,
 782
 783         serverUrl: environment.apiUrl,
 784
 785         videoCaptions: playerCaptions
 786       },
 787
 788       webtorrent: {
 789         videoFiles: video.files
 790       }
 791     }
 792
 793     let mode: PlayerMode
 794
 795     if (urlOptions.playerMode) {
 796       if (urlOptions.playerMode === 'p2p-media-loader') mode = 'p2p-media-loader'
 797       else mode = 'webtorrent'
 798     } else {
 799       if (video.hasHlsPlaylist()) mode = 'p2p-media-loader'
 800       else mode = 'webtorrent'
 801     }
 802
 803     // p2p-media-loader needs TextEncoder, try to fallback on WebTorrent
 804     if (typeof TextEncoder === 'undefined') {
 805       mode = 'webtorrent'
 806     }
 807
 808     if (mode === 'p2p-media-loader') {
 809       const hlsPlaylist = video.getHlsPlaylist()
 810
 811       const p2pMediaLoader = {
 812         playlistUrl: hlsPlaylist.playlistUrl,
 813         segmentsSha256Url: hlsPlaylist.segmentsSha256Url,
 814         redundancyBaseUrls: hlsPlaylist.redundancies.map(r => r.baseUrl),
 815         trackerAnnounce: video.trackerUrls,
 816         videoFiles: hlsPlaylist.files
 817       } as P2PMediaLoaderOptions
 818
 819       Object.assign(options, { p2pMediaLoader })
 820     }
 821
 822     return { playerMode: mode, playerOptions: options }
 823   }
 824
 825   private pausePlayer () {
 826     if (!this.player) return
 827
 828     this.player.pause()
 829   }
 830
 831   private resumePlayer () {
 832     if (!this.player) return
 833
 834     this.player.play()
 835   }
 836
 837   private isPlaying () {
 838     if (!this.player) return
 839
 840     return !this.player.paused()
 841   }
 842
 843   private async subscribeToLiveEventsIfNeeded (oldVideo: VideoDetails, newVideo: VideoDetails) {
 844     if (!this.liveVideosSub) {
 845       this.liveVideosSub = this.peertubeSocket.getLiveVideosObservable()
 846         .subscribe(({ payload }) => {
 847           if (payload.state !== VideoState.PUBLISHED || this.video.state.id !== VideoState.WAITING_FOR_LIVE) return
 848
 849           const videoUUID = this.video.uuid
 850
 851           // Reset to refetch the video
 852           this.video = undefined
 853           this.loadVideo(videoUUID)
 854         })
 855     }
 856
 857     if (oldVideo && oldVideo.id !== newVideo.id) {
 858       await this.peertubeSocket.unsubscribeLiveVideos(oldVideo.id)
 859     }
 860
 861     if (!newVideo.isLive) return
 862
 863     await this.peertubeSocket.subscribeToLiveVideosSocket(newVideo.id)
 864   }
 865
 866   private initHotkeys () {
 867     this.hotkeys = [
 868       // These hotkeys are managed by the player
 869       new Hotkey('f', e => e, undefined, $localize`Enter/exit fullscreen (requires player focus)`),
 870       new Hotkey('space', e => e, undefined, $localize`Play/Pause the video (requires player focus)`),
 871       new Hotkey('m', e => e, undefined, $localize`Mute/unmute the video (requires player focus)`),
 872
 873       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)`),
 874
 875       new Hotkey('up', e => e, undefined, $localize`Increase the volume (requires player focus)`),
 876       new Hotkey('down', e => e, undefined, $localize`Decrease the volume (requires player focus)`),
 877
 878       new Hotkey('right', e => e, undefined, $localize`Seek the video forward (requires player focus)`),
 879       new Hotkey('left', e => e, undefined, $localize`Seek the video backward (requires player focus)`),
 880
 881       new Hotkey('>', e => e, undefined, $localize`Increase playback rate (requires player focus)`),
 882       new Hotkey('<', e => e, undefined, $localize`Decrease playback rate (requires player focus)`),
 883
 884       new Hotkey('.', e => e, undefined, $localize`Navigate in the video frame by frame (requires player focus)`)
 885     ]
 886
 887     if (this.isUserLoggedIn()) {
 888       this.hotkeys = this.hotkeys.concat([
 889         new Hotkey('shift+l', () => {
 890           this.setLike()
 891           return false
 892         }, undefined, $localize`Like the video`),
 893
 894         new Hotkey('shift+d', () => {
 895           this.setDislike()
 896           return false
 897         }, undefined, $localize`Dislike the video`),
 898
 899         new Hotkey('shift+s', () => {
 900           this.subscribeButton.subscribed ? this.subscribeButton.unsubscribe() : this.subscribeButton.subscribe()
 901           return false
 902         }, undefined, $localize`Subscribe to the account`)
 903       ])
 904     }
 905
 906     this.hotkeysService.add(this.hotkeys)
 907   }
 908 }