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