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

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