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

   1 import { Component, ElementRef, OnDestroy, OnInit, ViewChild } from '@angular/core'
   2 import { ActivatedRoute, Router } from '@angular/router'
   3 import { Observable } from 'rxjs/Observable'
   4 import { Subscription } from 'rxjs/Subscription'
   5
   6 import videojs from 'video.js'
   7 import '../../../assets/player/peertube-videojs-plugin'
   8
   9 import { MetaService } from '@ngx-meta/core'
  10 import { NotificationsService } from 'angular2-notifications'
  11
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { VideoMagnetComponent } from './video-magnet.component'
  14 import { VideoShareComponent } from './video-share.component'
  15 import { VideoReportComponent } from './video-report.component'
  16 import { Video, VideoService } from '../shared'
  17 import { WebTorrentService } from './webtorrent.service'
  18 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  19
  20 @Component({
  21   selector: 'my-video-watch',
  22   templateUrl: './video-watch.component.html',
  23   styleUrls: [ './video-watch.component.scss' ]
  24 })
  25 export class VideoWatchComponent implements OnInit, OnDestroy {
  26   @ViewChild('videoMagnetModal') videoMagnetModal: VideoMagnetComponent
  27   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  28   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  29
  30   downloadSpeed: number
  31   error = false
  32   loading = false
  33   numPeers: number
  34   player: videojs.Player
  35   playerElement: HTMLMediaElement
  36   uploadSpeed: number
  37   userRating: UserVideoRateType = null
  38   video: Video = null
  39   videoNotFound = false
  40
  41   private paramsSub: Subscription
  42
  43   constructor (
  44     private elementRef: ElementRef,
  45     private route: ActivatedRoute,
  46     private router: Router,
  47     private videoService: VideoService,
  48     private confirmService: ConfirmService,
  49     private metaService: MetaService,
  50     private authService: AuthService,
  51     private notificationsService: NotificationsService
  52   ) {}
  53
  54   ngOnInit () {
  55     this.paramsSub = this.route.params.subscribe(routeParams => {
  56       let uuid = routeParams['uuid']
  57       this.videoService.getVideo(uuid).subscribe(
  58         video => this.onVideoFetched(video),
  59
  60         error => {
  61           console.error(error)
  62           this.videoNotFound = true
  63         }
  64       )
  65     })
  66   }
  67
  68   ngOnDestroy () {
  69     // Remove player if it exists
  70     if (this.videoNotFound === false) {
  71       videojs(this.playerElement).dispose()
  72     }
  73
  74     // Unsubscribe subscriptions
  75     this.paramsSub.unsubscribe()
  76   }
  77
  78   setLike () {
  79     if (this.isUserLoggedIn() === false) return
  80     // Already liked this video
  81     if (this.userRating === 'like') return
  82
  83     this.videoService.setVideoLike(this.video.id)
  84                      .subscribe(
  85                       () => {
  86                         // Update the video like attribute
  87                         this.updateVideoRating(this.userRating, 'like')
  88                         this.userRating = 'like'
  89                       },
  90
  91                       err => this.notificationsService.error('Error', err.message)
  92                      )
  93   }
  94
  95   setDislike () {
  96     if (this.isUserLoggedIn() === false) return
  97     // Already disliked this video
  98     if (this.userRating === 'dislike') return
  99
 100     this.videoService.setVideoDislike(this.video.id)
 101                      .subscribe(
 102                       () => {
 103                         // Update the video dislike attribute
 104                         this.updateVideoRating(this.userRating, 'dislike')
 105                         this.userRating = 'dislike'
 106                       },
 107
 108                       err => this.notificationsService.error('Error', err.message)
 109                      )
 110   }
 111
 112   removeVideo (event: Event) {
 113     event.preventDefault()
 114
 115     this.confirmService.confirm('Do you really want to delete this video?', 'Delete').subscribe(
 116       res => {
 117         if (res === false) return
 118
 119         this.videoService.removeVideo(this.video.id)
 120                          .subscribe(
 121                            status => {
 122                              this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 123                              // Go back to the video-list.
 124                              this.router.navigate(['/videos/list'])
 125                            },
 126
 127                            error => this.notificationsService.error('Error', error.text)
 128                           )
 129       }
 130     )
 131   }
 132
 133   blacklistVideo (event: Event) {
 134     event.preventDefault()
 135
 136     this.confirmService.confirm('Do you really want to blacklist this video ?', 'Blacklist').subscribe(
 137       res => {
 138         if (res === false) return
 139
 140         this.videoService.blacklistVideo(this.video.id)
 141                          .subscribe(
 142                            status => {
 143                              this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 144                              this.router.navigate(['/videos/list'])
 145                            },
 146
 147                            error => this.notificationsService.error('Error', error.text)
 148                          )
 149       }
 150     )
 151   }
 152
 153   showReportModal (event: Event) {
 154     event.preventDefault()
 155     this.videoReportModal.show()
 156   }
 157
 158   showShareModal () {
 159     this.videoShareModal.show()
 160   }
 161
 162   showMagnetUriModal (event: Event) {
 163     event.preventDefault()
 164     this.videoMagnetModal.show()
 165   }
 166
 167   isUserLoggedIn () {
 168     return this.authService.isLoggedIn()
 169   }
 170
 171   canUserUpdateVideo () {
 172     return this.video.isUpdatableBy(this.authService.getUser())
 173   }
 174
 175   isVideoRemovable () {
 176     return this.video.isRemovableBy(this.authService.getUser())
 177   }
 178
 179   isVideoBlacklistable () {
 180     return this.video.isBlackistableBy(this.authService.getUser())
 181   }
 182
 183   private handleError (err: any) {
 184     const errorMessage: string = typeof err === 'string' ? err : err.message
 185     let message = ''
 186
 187     if (errorMessage.indexOf('http error') !== -1) {
 188       message = 'Cannot fetch video from server, maybe down.'
 189     } else {
 190       message = errorMessage
 191     }
 192
 193     this.notificationsService.error('Error', message)
 194   }
 195
 196   private checkUserRating () {
 197     // Unlogged users do not have ratings
 198     if (this.isUserLoggedIn() === false) return
 199
 200     this.videoService.getUserVideoRating(this.video.id)
 201                      .subscribe(
 202                        ratingObject => {
 203                          if (ratingObject) {
 204                            this.userRating = ratingObject.rating
 205                          }
 206                        },
 207
 208                        err => this.notificationsService.error('Error', err.message)
 209                       )
 210   }
 211
 212   private onVideoFetched (video: Video) {
 213     this.video = video
 214
 215     let observable
 216     if (this.video.isVideoNSFWForUser(this.authService.getUser())) {
 217       observable = this.confirmService.confirm('This video is not safe for work. Are you sure you want to watch it?', 'NSFW')
 218     } else {
 219       observable = Observable.of(true)
 220     }
 221
 222     observable.subscribe(
 223       res => {
 224         if (res === false) {
 225           return this.router.navigate([ '/videos/list' ])
 226         }
 227
 228         this.playerElement = this.elementRef.nativeElement.querySelector('#video-container')
 229
 230         const videojsOptions = {
 231           controls: true,
 232           autoplay: true,
 233           plugins: {
 234             peertube: {
 235               videoFiles: this.video.files,
 236               playerElement: this.playerElement,
 237               autoplay: true,
 238               peerTubeLink: false
 239             }
 240           }
 241         }
 242
 243         const self = this
 244         videojs(this.playerElement, videojsOptions, function () {
 245           self.player = this
 246           this.on('customError', (event, data) => {
 247             self.handleError(data.err)
 248           })
 249
 250           this.on('torrentInfo', (event, data) => {
 251             self.downloadSpeed = data.downloadSpeed
 252             self.numPeers = data.numPeers
 253             self.uploadSpeed = data.uploadSpeed
 254           })
 255         })
 256
 257         this.setOpenGraphTags()
 258         this.checkUserRating()
 259       }
 260     )
 261   }
 262
 263   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 264     let likesToIncrement = 0
 265     let dislikesToIncrement = 0
 266
 267     if (oldRating) {
 268       if (oldRating === 'like') likesToIncrement--
 269       if (oldRating === 'dislike') dislikesToIncrement--
 270     }
 271
 272     if (newRating === 'like') likesToIncrement++
 273     if (newRating === 'dislike') dislikesToIncrement++
 274
 275     this.video.likes += likesToIncrement
 276     this.video.dislikes += dislikesToIncrement
 277   }
 278
 279   private setOpenGraphTags () {
 280     this.metaService.setTitle(this.video.name)
 281
 282     this.metaService.setTag('og:type', 'video')
 283
 284     this.metaService.setTag('og:title', this.video.name)
 285     this.metaService.setTag('name', this.video.name)
 286
 287     this.metaService.setTag('og:description', this.video.description)
 288     this.metaService.setTag('description', this.video.description)
 289
 290     this.metaService.setTag('og:image', this.video.previewPath)
 291
 292     this.metaService.setTag('og:duration', this.video.duration.toString())
 293
 294     this.metaService.setTag('og:site_name', 'PeerTube')
 295
 296     this.metaService.setTag('og:url', window.location.href)
 297     this.metaService.setTag('url', window.location.href)
 298   }
 299 }