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

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