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

   1 import { Component, ElementRef, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   2 import { ActivatedRoute, Router } from '@angular/router'
   3 import { RedirectService } from '@app/core/routing/redirect.service'
   4 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   5 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   6 import { MetaService } from '@ngx-meta/core'
   7 import { NotificationsService } from 'angular2-notifications'
   8 import { Subscription } from 'rxjs/Subscription'
   9 import * as videojs from 'video.js'
  10 import 'videojs-hotkeys'
  11 import * as WebTorrent from 'webtorrent'
  12 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  13 import '../../../assets/player/peertube-videojs-plugin'
  14 import { AuthService, ConfirmService } from '../../core'
  15 import { VideoBlacklistService } from '../../shared'
  16 import { Account } from '../../shared/account/account.model'
  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
  26 @Component({
  27   selector: 'my-video-watch',
  28   templateUrl: './video-watch.component.html',
  29   styleUrls: [ './video-watch.component.scss' ]
  30 })
  31 export class VideoWatchComponent implements OnInit, OnDestroy {
  32   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  33
  34   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  35   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  36   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  37   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  38
  39   otherVideosDisplayed: Video[] = []
  40
  41   player: videojs.Player
  42   playerElement: HTMLVideoElement
  43   userRating: UserVideoRateType = null
  44   video: VideoDetails = null
  45   videoNotFound = false
  46   descriptionLoading = false
  47
  48   completeDescriptionShown = false
  49   completeVideoDescription: string
  50   shortVideoDescription: string
  51   videoHTMLDescription = ''
  52   likesBarTooltipText = ''
  53   hasAlreadyAcceptedPrivacyConcern = false
  54
  55   private otherVideos: Video[] = []
  56   private paramsSub: Subscription
  57
  58   constructor (
  59     private elementRef: ElementRef,
  60     private route: ActivatedRoute,
  61     private router: Router,
  62     private videoService: VideoService,
  63     private videoBlacklistService: VideoBlacklistService,
  64     private confirmService: ConfirmService,
  65     private metaService: MetaService,
  66     private authService: AuthService,
  67     private notificationsService: NotificationsService,
  68     private markdownService: MarkdownService,
  69     private zone: NgZone,
  70     private redirectService: RedirectService
  71   ) {}
  72
  73   get user () {
  74     return this.authService.getUser()
  75   }
  76
  77   ngOnInit () {
  78     if (
  79       WebTorrent.WEBRTC_SUPPORT === false ||
  80       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  81     ) {
  82       this.hasAlreadyAcceptedPrivacyConcern = true
  83     }
  84
  85     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  86       .subscribe(
  87         data => {
  88           this.otherVideos = data.videos
  89           this.updateOtherVideosDisplayed()
  90         },
  91
  92         err => console.error(err)
  93       )
  94
  95     this.paramsSub = this.route.params.subscribe(routeParams => {
  96       if (this.player) {
  97         this.player.pause()
  98       }
  99
 100       const uuid = routeParams['uuid']
 101       // Video did not changed
 102       if (this.video && this.video.uuid === uuid) return
 103
 104       this.videoService.getVideo(uuid).subscribe(
 105         video => {
 106           const startTime = this.route.snapshot.queryParams.start
 107           this.onVideoFetched(video, startTime)
 108             .catch(err => this.handleError(err))
 109         },
 110
 111         error => {
 112           this.videoNotFound = true
 113           console.error(error)
 114         }
 115       )
 116     })
 117   }
 118
 119   ngOnDestroy () {
 120     this.flushPlayer()
 121
 122     // Unsubscribe subscriptions
 123     this.paramsSub.unsubscribe()
 124   }
 125
 126   setLike () {
 127     if (this.isUserLoggedIn() === false) return
 128     if (this.userRating === 'like') {
 129       // Already liked this video
 130       this.setRating('none')
 131     } else {
 132       this.setRating('like')
 133     }
 134   }
 135
 136   setDislike () {
 137     if (this.isUserLoggedIn() === false) return
 138     if (this.userRating === 'dislike') {
 139       // Already disliked this video
 140       this.setRating('none')
 141     } else {
 142       this.setRating('dislike')
 143     }
 144   }
 145
 146   async blacklistVideo (event: Event) {
 147     event.preventDefault()
 148
 149     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 150     if (res === false) return
 151
 152     this.videoBlacklistService.blacklistVideo(this.video.id)
 153                               .subscribe(
 154                                 status => {
 155                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 156                                   this.redirectService.redirectToHomepage()
 157                                 },
 158
 159                                 error => this.notificationsService.error('Error', error.message)
 160                               )
 161   }
 162
 163   showMoreDescription () {
 164     if (this.completeVideoDescription === undefined) {
 165       return this.loadCompleteDescription()
 166     }
 167
 168     this.updateVideoDescription(this.completeVideoDescription)
 169     this.completeDescriptionShown = true
 170   }
 171
 172   showLessDescription () {
 173     this.updateVideoDescription(this.shortVideoDescription)
 174     this.completeDescriptionShown = false
 175   }
 176
 177   loadCompleteDescription () {
 178     this.descriptionLoading = true
 179
 180     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 181       .subscribe(
 182         description => {
 183           this.completeDescriptionShown = true
 184           this.descriptionLoading = false
 185
 186           this.shortVideoDescription = this.video.description
 187           this.completeVideoDescription = description
 188
 189           this.updateVideoDescription(this.completeVideoDescription)
 190         },
 191
 192         error => {
 193           this.descriptionLoading = false
 194           this.notificationsService.error('Error', error.message)
 195         }
 196       )
 197   }
 198
 199   showReportModal (event: Event) {
 200     event.preventDefault()
 201     this.videoReportModal.show()
 202   }
 203
 204   showSupportModal () {
 205     this.videoSupportModal.show()
 206   }
 207
 208   showShareModal () {
 209     this.videoShareModal.show()
 210   }
 211
 212   showDownloadModal (event: Event) {
 213     event.preventDefault()
 214     this.videoDownloadModal.show()
 215   }
 216
 217   isUserLoggedIn () {
 218     return this.authService.isLoggedIn()
 219   }
 220
 221   isVideoUpdatable () {
 222     return this.video.isUpdatableBy(this.authService.getUser())
 223   }
 224
 225   isVideoBlacklistable () {
 226     return this.video.isBlackistableBy(this.user)
 227   }
 228
 229   getAvatarPath () {
 230     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 231   }
 232
 233   getVideoPoster () {
 234     if (!this.video) return ''
 235
 236     return this.video.previewUrl
 237   }
 238
 239   getVideoTags () {
 240     if (!this.video || Array.isArray(this.video.tags) === false) return []
 241
 242     return this.video.tags.join(', ')
 243   }
 244
 245   isVideoRemovable () {
 246     return this.video.isRemovableBy(this.authService.getUser())
 247   }
 248
 249   async removeVideo (event: Event) {
 250     event.preventDefault()
 251
 252     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 253     if (res === false) return
 254
 255     this.videoService.removeVideo(this.video.id)
 256       .subscribe(
 257         status => {
 258           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 259
 260           // Go back to the video-list.
 261           this.redirectService.redirectToHomepage()
 262         },
 263
 264         error => this.notificationsService.error('Error', error.message)
 265       )
 266   }
 267
 268   acceptedPrivacyConcern () {
 269     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 270     this.hasAlreadyAcceptedPrivacyConcern = true
 271   }
 272
 273   private updateVideoDescription (description: string) {
 274     this.video.description = description
 275     this.setVideoDescriptionHTML()
 276   }
 277
 278   private setVideoDescriptionHTML () {
 279     if (!this.video.description) {
 280       this.videoHTMLDescription = ''
 281       return
 282     }
 283
 284     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 285   }
 286
 287   private setVideoLikesBarTooltipText () {
 288     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 289   }
 290
 291   private handleError (err: any) {
 292     const errorMessage: string = typeof err === 'string' ? err : err.message
 293     if (!errorMessage) return
 294
 295     let message = ''
 296
 297     if (errorMessage.indexOf('http error') !== -1) {
 298       message = 'Cannot fetch video from server, maybe down.'
 299     } else {
 300       message = errorMessage
 301     }
 302
 303     this.notificationsService.error('Error', message)
 304   }
 305
 306   private checkUserRating () {
 307     // Unlogged users do not have ratings
 308     if (this.isUserLoggedIn() === false) return
 309
 310     this.videoService.getUserVideoRating(this.video.id)
 311                      .subscribe(
 312                        ratingObject => {
 313                          if (ratingObject) {
 314                            this.userRating = ratingObject.rating
 315                          }
 316                        },
 317
 318                        err => this.notificationsService.error('Error', err.message)
 319                       )
 320   }
 321
 322   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 323     this.video = video
 324
 325     // Re init attributes
 326     this.descriptionLoading = false
 327     this.completeDescriptionShown = false
 328
 329     this.updateOtherVideosDisplayed()
 330
 331     if (this.video.isVideoNSFWForUser(this.user)) {
 332       const res = await this.confirmService.confirm(
 333         'This video contains mature or explicit content. Are you sure you want to watch it?',
 334         'Mature or explicit content'
 335       )
 336       if (res === false) return this.redirectService.redirectToHomepage()
 337     }
 338
 339     // Flush old player if needed
 340     this.flushPlayer()
 341
 342     // Build video element, because videojs remove it on dispose
 343     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 344     this.playerElement = document.createElement('video')
 345     this.playerElement.className = 'video-js vjs-peertube-skin'
 346     playerElementWrapper.appendChild(this.playerElement)
 347
 348     const videojsOptions = getVideojsOptions({
 349       autoplay: this.isAutoplay(),
 350       inactivityTimeout: 2500,
 351       videoFiles: this.video.files,
 352       playerElement: this.playerElement,
 353       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 354       videoDuration: this.video.duration,
 355       enableHotkeys: true,
 356       peertubeLink: false,
 357       poster: this.video.previewUrl,
 358       startTime
 359     })
 360
 361     const self = this
 362     this.zone.runOutsideAngular(() => {
 363       videojs(this.playerElement, videojsOptions, function () {
 364         self.player = this
 365         this.on('customError', (event, data) => self.handleError(data.err))
 366       })
 367     })
 368
 369     this.setVideoDescriptionHTML()
 370     this.setVideoLikesBarTooltipText()
 371
 372     this.setOpenGraphTags()
 373     this.checkUserRating()
 374   }
 375
 376   private setRating (nextRating) {
 377     let method
 378     switch (nextRating) {
 379       case 'like':
 380         method = this.videoService.setVideoLike
 381         break
 382       case 'dislike':
 383         method = this.videoService.setVideoDislike
 384         break
 385       case 'none':
 386         method = this.videoService.unsetVideoLike
 387         break
 388     }
 389
 390     method.call(this.videoService, this.video.id)
 391      .subscribe(
 392       () => {
 393         // Update the video like attribute
 394         this.updateVideoRating(this.userRating, nextRating)
 395         this.userRating = nextRating
 396       },
 397       err => this.notificationsService.error('Error', err.message)
 398      )
 399   }
 400
 401   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 402     let likesToIncrement = 0
 403     let dislikesToIncrement = 0
 404
 405     if (oldRating) {
 406       if (oldRating === 'like') likesToIncrement--
 407       if (oldRating === 'dislike') dislikesToIncrement--
 408     }
 409
 410     if (newRating === 'like') likesToIncrement++
 411     if (newRating === 'dislike') dislikesToIncrement++
 412
 413     this.video.likes += likesToIncrement
 414     this.video.dislikes += dislikesToIncrement
 415
 416     this.video.buildLikeAndDislikePercents()
 417     this.setVideoLikesBarTooltipText()
 418   }
 419
 420   private updateOtherVideosDisplayed () {
 421     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 422       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 423     }
 424   }
 425
 426   private setOpenGraphTags () {
 427     this.metaService.setTitle(this.video.name)
 428
 429     this.metaService.setTag('og:type', 'video')
 430
 431     this.metaService.setTag('og:title', this.video.name)
 432     this.metaService.setTag('name', this.video.name)
 433
 434     this.metaService.setTag('og:description', this.video.description)
 435     this.metaService.setTag('description', this.video.description)
 436
 437     this.metaService.setTag('og:image', this.video.previewPath)
 438
 439     this.metaService.setTag('og:duration', this.video.duration.toString())
 440
 441     this.metaService.setTag('og:site_name', 'PeerTube')
 442
 443     this.metaService.setTag('og:url', window.location.href)
 444     this.metaService.setTag('url', window.location.href)
 445   }
 446
 447   private isAutoplay () {
 448     // True by default
 449     if (!this.user) return true
 450
 451     // Be sure the autoPlay is set to false
 452     return this.user.autoPlayVideo !== false
 453   }
 454
 455   private flushPlayer () {
 456     // Remove player if it exists
 457     if (this.player) {
 458       this.player.dispose()
 459       this.player = undefined
 460     }
 461   }
 462 }