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

   1 import { catchError, subscribeOn } from 'rxjs/operators'
   2 import { ChangeDetectorRef, Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { RedirectService } from '@app/core/routing/redirect.service'
   5 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   6 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   7 import { MetaService } from '@ngx-meta/core'
   8 import { NotificationsService } from 'angular2-notifications'
   9 import { forkJoin, Subscription } from 'rxjs'
  10 import * as videojs from 'video.js'
  11 import 'videojs-hotkeys'
  12 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
  13 import * as WebTorrent from 'webtorrent'
  14 import { UserVideoRateType, VideoCaption, VideoPrivacy, VideoRateType, VideoState } from '../../../../../shared'
  15 import '../../../assets/player/peertube-videojs-plugin'
  16 import { AuthService, ConfirmService } from '../../core'
  17 import { RestExtractor, VideoBlacklistService } from '../../shared'
  18 import { VideoDetails } from '../../shared/video/video-details.model'
  19 import { VideoService } from '../../shared/video/video.service'
  20 import { MarkdownService } from '../shared'
  21 import { VideoDownloadComponent } from './modal/video-download.component'
  22 import { VideoReportComponent } from './modal/video-report.component'
  23 import { VideoShareComponent } from './modal/video-share.component'
  24 import { VideoBlacklistComponent } from './modal/video-blacklist.component'
  25 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  26 import { addContextMenu, getVideojsOptions, loadLocaleInVideoJS } from '../../../assets/player/peertube-player'
  27 import { ServerService } from '@app/core'
  28 import { I18n } from '@ngx-translate/i18n-polyfill'
  29 import { environment } from '../../../environments/environment'
  30 import { getDevLocale, isOnDevLocale } from '@app/shared/i18n/i18n-utils'
  31 import { VideoCaptionService } from '@app/shared/video-caption'
  32
  33 @Component({
  34   selector: 'my-video-watch',
  35   templateUrl: './video-watch.component.html',
  36   styleUrls: [ './video-watch.component.scss' ]
  37 })
  38 export class VideoWatchComponent implements OnInit, OnDestroy {
  39   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  40
  41   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  42   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  43   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  44   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  45   @ViewChild('videoBlacklistModal') videoBlacklistModal: VideoBlacklistComponent
  46   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  47
  48   player: videojs.Player
  49   playerElement: HTMLVideoElement
  50   userRating: UserVideoRateType = null
  51   video: VideoDetails = null
  52   descriptionLoading = false
  53
  54   completeDescriptionShown = false
  55   completeVideoDescription: string
  56   shortVideoDescription: string
  57   videoHTMLDescription = ''
  58   likesBarTooltipText = ''
  59   hasAlreadyAcceptedPrivacyConcern = false
  60   remoteServerDown = false
  61   hotkeys: Hotkey[]
  62
  63   private videojsLocaleLoaded = false
  64   private paramsSub: Subscription
  65
  66   constructor (
  67     private elementRef: ElementRef,
  68     private changeDetector: ChangeDetectorRef,
  69     private route: ActivatedRoute,
  70     private router: Router,
  71     private videoService: VideoService,
  72     private videoBlacklistService: VideoBlacklistService,
  73     private confirmService: ConfirmService,
  74     private metaService: MetaService,
  75     private authService: AuthService,
  76     private serverService: ServerService,
  77     private restExtractor: RestExtractor,
  78     private notificationsService: NotificationsService,
  79     private markdownService: MarkdownService,
  80     private zone: NgZone,
  81     private redirectService: RedirectService,
  82     private videoCaptionService: VideoCaptionService,
  83     private i18n: I18n,
  84     private hotkeysService: HotkeysService,
  85     @Inject(LOCALE_ID) private localeId: string
  86   ) {}
  87
  88   get user () {
  89     return this.authService.getUser()
  90   }
  91
  92   ngOnInit () {
  93     if (
  94       WebTorrent.WEBRTC_SUPPORT === false ||
  95       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  96     ) {
  97       this.hasAlreadyAcceptedPrivacyConcern = true
  98     }
  99
 100     this.paramsSub = this.route.params.subscribe(routeParams => {
 101       const uuid = routeParams[ 'uuid' ]
 102
 103       // Video did not change
 104       if (this.video && this.video.uuid === uuid) return
 105
 106       if (this.player) this.player.pause()
 107
 108       // Video did change
 109       forkJoin(
 110         this.videoService.getVideo(uuid),
 111         this.videoCaptionService.listCaptions(uuid)
 112       )
 113         .pipe(
 114           // If 401, the video is private or blacklisted so redirect to 404
 115           catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 401, 404 ]))
 116         )
 117         .subscribe(([ video, captionsResult ]) => {
 118           const startTime = this.route.snapshot.queryParams.start
 119           this.onVideoFetched(video, captionsResult.data, startTime)
 120               .catch(err => this.handleError(err))
 121         })
 122     })
 123
 124     this.hotkeys = [
 125       new Hotkey('L', (event: KeyboardEvent): boolean => {
 126         this.setLike()
 127         return false
 128       }, undefined, 'Like the video'),
 129       new Hotkey('D', (event: KeyboardEvent): boolean => {
 130         this.setDislike()
 131         return false
 132       }, undefined, 'Dislike the video'),
 133       new Hotkey('S', (event: KeyboardEvent): boolean => {
 134         this.subscribeButton.subscribed ?
 135           this.subscribeButton.unsubscribe() :
 136           this.subscribeButton.subscribe()
 137         return false
 138       }, undefined, 'Subscribe to the account')
 139     ]
 140     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
 141   }
 142
 143   ngOnDestroy () {
 144     this.flushPlayer()
 145
 146     // Unsubscribe subscriptions
 147     this.paramsSub.unsubscribe()
 148
 149     // Unbind hotkeys
 150     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
 151   }
 152
 153   setLike () {
 154     if (this.isUserLoggedIn() === false) return
 155     if (this.userRating === 'like') {
 156       // Already liked this video
 157       this.setRating('none')
 158     } else {
 159       this.setRating('like')
 160     }
 161   }
 162
 163   setDislike () {
 164     if (this.isUserLoggedIn() === false) return
 165     if (this.userRating === 'dislike') {
 166       // Already disliked this video
 167       this.setRating('none')
 168     } else {
 169       this.setRating('dislike')
 170     }
 171   }
 172
 173   showMoreDescription () {
 174     if (this.completeVideoDescription === undefined) {
 175       return this.loadCompleteDescription()
 176     }
 177
 178     this.updateVideoDescription(this.completeVideoDescription)
 179     this.completeDescriptionShown = true
 180   }
 181
 182   showLessDescription () {
 183     this.updateVideoDescription(this.shortVideoDescription)
 184     this.completeDescriptionShown = false
 185   }
 186
 187   loadCompleteDescription () {
 188     this.descriptionLoading = true
 189
 190     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 191         .subscribe(
 192           description => {
 193             this.completeDescriptionShown = true
 194             this.descriptionLoading = false
 195
 196             this.shortVideoDescription = this.video.description
 197             this.completeVideoDescription = description
 198
 199             this.updateVideoDescription(this.completeVideoDescription)
 200           },
 201
 202           error => {
 203             this.descriptionLoading = false
 204             this.notificationsService.error(this.i18n('Error'), error.message)
 205           }
 206         )
 207   }
 208
 209   showReportModal (event: Event) {
 210     event.preventDefault()
 211     this.videoReportModal.show()
 212   }
 213
 214   showSupportModal () {
 215     this.videoSupportModal.show()
 216   }
 217
 218   showShareModal () {
 219     const currentTime = this.player ? this.player.currentTime() : undefined
 220
 221     this.videoShareModal.show(currentTime)
 222   }
 223
 224   showDownloadModal (event: Event) {
 225     event.preventDefault()
 226     this.videoDownloadModal.show()
 227   }
 228
 229   showBlacklistModal (event: Event) {
 230     event.preventDefault()
 231     this.videoBlacklistModal.show()
 232   }
 233
 234   async unblacklistVideo (event: Event) {
 235     event.preventDefault()
 236
 237     const confirmMessage = this.i18n(
 238       'Do you really want to remove this video from the blacklist? It will be available again in the videos list.'
 239     )
 240
 241     const res = await this.confirmService.confirm(confirmMessage, this.i18n('Unblacklist'))
 242     if (res === false) return
 243
 244     this.videoBlacklistService.removeVideoFromBlacklist(this.video.id).subscribe(
 245       () => {
 246         this.notificationsService.success(
 247           this.i18n('Success'),
 248           this.i18n('Video {{name}} removed from the blacklist.', { name: this.video.name })
 249         )
 250
 251         this.video.blacklisted = false
 252         this.video.blacklistedReason = null
 253       },
 254
 255       err => this.notificationsService.error(this.i18n('Error'), err.message)
 256     )
 257   }
 258
 259   isUserLoggedIn () {
 260     return this.authService.isLoggedIn()
 261   }
 262
 263   isVideoUpdatable () {
 264     return this.video.isUpdatableBy(this.authService.getUser())
 265   }
 266
 267   isVideoBlacklistable () {
 268     return this.video.isBlackistableBy(this.user)
 269   }
 270
 271   isVideoUnblacklistable () {
 272     return this.video.isUnblacklistableBy(this.user)
 273   }
 274
 275   getVideoTags () {
 276     if (!this.video || Array.isArray(this.video.tags) === false) return []
 277
 278     return this.video.tags
 279   }
 280
 281   isVideoRemovable () {
 282     return this.video.isRemovableBy(this.authService.getUser())
 283   }
 284
 285   async removeVideo (event: Event) {
 286     event.preventDefault()
 287
 288     const res = await this.confirmService.confirm(this.i18n('Do you really want to delete this video?'), this.i18n('Delete'))
 289     if (res === false) return
 290
 291     this.videoService.removeVideo(this.video.id)
 292         .subscribe(
 293           status => {
 294             this.notificationsService.success(
 295               this.i18n('Success'),
 296               this.i18n('Video {{videoName}} deleted.', { videoName: this.video.name })
 297             )
 298
 299             // Go back to the video-list.
 300             this.redirectService.redirectToHomepage()
 301           },
 302
 303           error => this.notificationsService.error(this.i18n('Error'), error.message)
 304         )
 305   }
 306
 307   acceptedPrivacyConcern () {
 308     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 309     this.hasAlreadyAcceptedPrivacyConcern = true
 310   }
 311
 312   isVideoToTranscode () {
 313     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 314   }
 315
 316   isVideoToImport () {
 317     return this.video && this.video.state.id === VideoState.TO_IMPORT
 318   }
 319
 320   hasVideoScheduledPublication () {
 321     return this.video && this.video.scheduledUpdate !== undefined
 322   }
 323
 324   private updateVideoDescription (description: string) {
 325     this.video.description = description
 326     this.setVideoDescriptionHTML()
 327   }
 328
 329   private setVideoDescriptionHTML () {
 330     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 331   }
 332
 333   private setVideoLikesBarTooltipText () {
 334     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 335       likesNumber: this.video.likes,
 336       dislikesNumber: this.video.dislikes
 337     })
 338   }
 339
 340   private handleError (err: any) {
 341     const errorMessage: string = typeof err === 'string' ? err : err.message
 342     if (!errorMessage) return
 343
 344     // Display a message in the video player instead of a notification
 345     if (errorMessage.indexOf('from xs param') !== -1) {
 346       this.flushPlayer()
 347       this.remoteServerDown = true
 348       this.changeDetector.detectChanges()
 349
 350       return
 351     }
 352
 353     this.notificationsService.error(this.i18n('Error'), errorMessage)
 354   }
 355
 356   private checkUserRating () {
 357     // Unlogged users do not have ratings
 358     if (this.isUserLoggedIn() === false) return
 359
 360     this.videoService.getUserVideoRating(this.video.id)
 361         .subscribe(
 362           ratingObject => {
 363             if (ratingObject) {
 364               this.userRating = ratingObject.rating
 365             }
 366           },
 367
 368           err => this.notificationsService.error(this.i18n('Error'), err.message)
 369         )
 370   }
 371
 372   private async onVideoFetched (video: VideoDetails, videoCaptions: VideoCaption[], startTime = 0) {
 373     this.video = video
 374
 375     // Re init attributes
 376     this.descriptionLoading = false
 377     this.completeDescriptionShown = false
 378     this.remoteServerDown = false
 379
 380     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 381       const res = await this.confirmService.confirm(
 382         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 383         this.i18n('Mature or explicit content')
 384       )
 385       if (res === false) return this.redirectService.redirectToHomepage()
 386     }
 387
 388     // Flush old player if needed
 389     this.flushPlayer()
 390
 391     // Build video element, because videojs remove it on dispose
 392     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 393     this.playerElement = document.createElement('video')
 394     this.playerElement.className = 'video-js vjs-peertube-skin'
 395     this.playerElement.setAttribute('playsinline', 'true')
 396     playerElementWrapper.appendChild(this.playerElement)
 397
 398     const playerCaptions = videoCaptions.map(c => ({
 399       label: c.language.label,
 400       language: c.language.id,
 401       src: environment.apiUrl + c.captionPath
 402     }))
 403
 404     const videojsOptions = getVideojsOptions({
 405       autoplay: this.isAutoplay(),
 406       inactivityTimeout: 2500,
 407       videoFiles: this.video.files,
 408       videoCaptions: playerCaptions,
 409       playerElement: this.playerElement,
 410       videoViewUrl: this.video.privacy.id !== VideoPrivacy.PRIVATE ? this.videoService.getVideoViewUrl(this.video.uuid) : null,
 411       videoDuration: this.video.duration,
 412       enableHotkeys: true,
 413       peertubeLink: false,
 414       poster: this.video.previewUrl,
 415       startTime,
 416       theaterMode: true,
 417       language: this.localeId
 418     })
 419
 420     if (this.videojsLocaleLoaded === false) {
 421       await loadLocaleInVideoJS(environment.apiUrl, videojs, isOnDevLocale() ? getDevLocale() : this.localeId)
 422       this.videojsLocaleLoaded = true
 423     }
 424
 425     const self = this
 426     this.zone.runOutsideAngular(async () => {
 427       videojs(this.playerElement, videojsOptions, function () {
 428         self.player = this
 429         this.on('customError', (event, data) => self.handleError(data.err))
 430
 431         addContextMenu(self.player, self.video.embedUrl)
 432       })
 433     })
 434
 435     this.setVideoDescriptionHTML()
 436     this.setVideoLikesBarTooltipText()
 437
 438     this.setOpenGraphTags()
 439     this.checkUserRating()
 440   }
 441
 442   private setRating (nextRating) {
 443     let method
 444     switch (nextRating) {
 445       case 'like':
 446         method = this.videoService.setVideoLike
 447         break
 448       case 'dislike':
 449         method = this.videoService.setVideoDislike
 450         break
 451       case 'none':
 452         method = this.videoService.unsetVideoLike
 453         break
 454     }
 455
 456     method.call(this.videoService, this.video.id)
 457           .subscribe(
 458             () => {
 459               // Update the video like attribute
 460               this.updateVideoRating(this.userRating, nextRating)
 461               this.userRating = nextRating
 462             },
 463
 464             err => this.notificationsService.error(this.i18n('Error'), err.message)
 465           )
 466   }
 467
 468   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 469     let likesToIncrement = 0
 470     let dislikesToIncrement = 0
 471
 472     if (oldRating) {
 473       if (oldRating === 'like') likesToIncrement--
 474       if (oldRating === 'dislike') dislikesToIncrement--
 475     }
 476
 477     if (newRating === 'like') likesToIncrement++
 478     if (newRating === 'dislike') dislikesToIncrement++
 479
 480     this.video.likes += likesToIncrement
 481     this.video.dislikes += dislikesToIncrement
 482
 483     this.video.buildLikeAndDislikePercents()
 484     this.setVideoLikesBarTooltipText()
 485   }
 486
 487   private setOpenGraphTags () {
 488     this.metaService.setTitle(this.video.name)
 489
 490     this.metaService.setTag('og:type', 'video')
 491
 492     this.metaService.setTag('og:title', this.video.name)
 493     this.metaService.setTag('name', this.video.name)
 494
 495     this.metaService.setTag('og:description', this.video.description)
 496     this.metaService.setTag('description', this.video.description)
 497
 498     this.metaService.setTag('og:image', this.video.previewPath)
 499
 500     this.metaService.setTag('og:duration', this.video.duration.toString())
 501
 502     this.metaService.setTag('og:site_name', 'PeerTube')
 503
 504     this.metaService.setTag('og:url', window.location.href)
 505     this.metaService.setTag('url', window.location.href)
 506   }
 507
 508   private isAutoplay () {
 509     // We'll jump to the thread id, so do not play the video
 510     if (this.route.snapshot.params['threadId']) return false
 511
 512     // Otherwise true by default
 513     if (!this.user) return true
 514
 515     // Be sure the autoPlay is set to false
 516     return this.user.autoPlayVideo !== false
 517   }
 518
 519   private flushPlayer () {
 520     // Remove player if it exists
 521     if (this.player) {
 522       this.player.dispose()
 523       this.player = undefined
 524     }
 525   }
 526 }