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 { MetaService } from '@ngx-meta/core'
   4 import { NotificationsService } from 'angular2-notifications'
   5 import { VideoService } from 'app/shared/video/video.service'
   6 import { Observable } from 'rxjs/Observable'
   7 import { Subscription } from 'rxjs/Subscription'
   8 import videojs from 'video.js'
   9 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  10 import '../../../assets/player/peertube-videojs-plugin'
  11 import { AuthService, ConfirmService } from '../../core'
  12 import { VideoBlacklistService } from '../../shared'
  13 import { MarkdownService } from '../shared'
  14 import { VideoDownloadComponent } from './video-download.component'
  15 import { VideoReportComponent } from './video-report.component'
  16 import { VideoShareComponent } from './video-share.component'
  17 import { VideoDetails } from '../../shared/video/video-details.model'
  18
  19 @Component({
  20   selector: 'my-video-watch',
  21   templateUrl: './video-watch.component.html',
  22   styleUrls: [ './video-watch.component.scss' ]
  23 })
  24 export class VideoWatchComponent implements OnInit, OnDestroy {
  25   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  26   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  27   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  28
  29   downloadSpeed: number
  30   error = false
  31   loading = false
  32   numPeers: number
  33   player: videojs.Player
  34   playerElement: HTMLMediaElement
  35   uploadSpeed: number
  36   userRating: UserVideoRateType = null
  37   video: VideoDetails = null
  38   videoPlayerLoaded = false
  39   videoNotFound = false
  40   descriptionLoading = false
  41
  42   completeDescriptionShown = false
  43   completeVideoDescription: string
  44   shortVideoDescription: string
  45   videoHTMLDescription = ''
  46
  47   private paramsSub: Subscription
  48
  49   constructor (
  50     private elementRef: ElementRef,
  51     private route: ActivatedRoute,
  52     private router: Router,
  53     private videoService: VideoService,
  54     private videoBlacklistService: VideoBlacklistService,
  55     private confirmService: ConfirmService,
  56     private metaService: MetaService,
  57     private authService: AuthService,
  58     private notificationsService: NotificationsService,
  59     private markdownService: MarkdownService
  60   ) {}
  61
  62   ngOnInit () {
  63     this.paramsSub = this.route.params.subscribe(routeParams => {
  64       let uuid = routeParams['uuid']
  65       this.videoService.getVideo(uuid).subscribe(
  66         video => this.onVideoFetched(video),
  67
  68         error => {
  69           this.videoNotFound = true
  70           console.error(error)
  71         }
  72       )
  73     })
  74   }
  75
  76   ngOnDestroy () {
  77     // Remove player if it exists
  78     if (this.videoPlayerLoaded === true) {
  79       videojs(this.playerElement).dispose()
  80     }
  81
  82     // Unsubscribe subscriptions
  83     this.paramsSub.unsubscribe()
  84   }
  85
  86   setLike () {
  87     if (this.isUserLoggedIn() === false) return
  88     // Already liked this video
  89     if (this.userRating === 'like') return
  90
  91     this.videoService.setVideoLike(this.video.id)
  92                      .subscribe(
  93                       () => {
  94                         // Update the video like attribute
  95                         this.updateVideoRating(this.userRating, 'like')
  96                         this.userRating = 'like'
  97                       },
  98
  99                       err => this.notificationsService.error('Error', err.message)
 100                      )
 101   }
 102
 103   setDislike () {
 104     if (this.isUserLoggedIn() === false) return
 105     // Already disliked this video
 106     if (this.userRating === 'dislike') return
 107
 108     this.videoService.setVideoDislike(this.video.id)
 109                      .subscribe(
 110                       () => {
 111                         // Update the video dislike attribute
 112                         this.updateVideoRating(this.userRating, 'dislike')
 113                         this.userRating = 'dislike'
 114                       },
 115
 116                       err => this.notificationsService.error('Error', err.message)
 117                      )
 118   }
 119
 120   removeVideo (event: Event) {
 121     event.preventDefault()
 122
 123     this.confirmService.confirm('Do you really want to delete this video?', 'Delete').subscribe(
 124       res => {
 125         if (res === false) return
 126
 127         this.videoService.removeVideo(this.video.id)
 128                          .subscribe(
 129                            status => {
 130                              this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 131                              // Go back to the video-list.
 132                              this.router.navigate(['/videos/list'])
 133                            },
 134
 135                            error => this.notificationsService.error('Error', error.text)
 136                           )
 137       }
 138     )
 139   }
 140
 141   blacklistVideo (event: Event) {
 142     event.preventDefault()
 143
 144     this.confirmService.confirm('Do you really want to blacklist this video ?', 'Blacklist').subscribe(
 145       res => {
 146         if (res === false) return
 147
 148         this.videoBlacklistService.blacklistVideo(this.video.id)
 149                                   .subscribe(
 150                                     status => {
 151                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 152                                       this.router.navigate(['/videos/list'])
 153                                     },
 154
 155                                     error => this.notificationsService.error('Error', error.text)
 156                                   )
 157       }
 158     )
 159   }
 160
 161   showMoreDescription () {
 162     if (this.completeVideoDescription === undefined) {
 163       return this.loadCompleteDescription()
 164     }
 165
 166     this.updateVideoDescription(this.completeVideoDescription)
 167     this.completeDescriptionShown = true
 168   }
 169
 170   showLessDescription () {
 171
 172     this.updateVideoDescription(this.shortVideoDescription)
 173     this.completeDescriptionShown = false
 174   }
 175
 176   loadCompleteDescription () {
 177     this.descriptionLoading = true
 178
 179     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 180       .subscribe(
 181         description => {
 182           this.completeDescriptionShown = true
 183           this.descriptionLoading = false
 184
 185           this.shortVideoDescription = this.video.description
 186           this.completeVideoDescription = description
 187
 188           this.updateVideoDescription(this.completeVideoDescription)
 189         },
 190
 191         error => {
 192           this.descriptionLoading = false
 193           this.notificationsService.error('Error', error.text)
 194         }
 195       )
 196   }
 197
 198   showReportModal (event: Event) {
 199     event.preventDefault()
 200     this.videoReportModal.show()
 201   }
 202
 203   showShareModal () {
 204     this.videoShareModal.show()
 205   }
 206
 207   showDownloadModal (event: Event) {
 208     event.preventDefault()
 209     this.videoDownloadModal.show()
 210   }
 211
 212   isUserLoggedIn () {
 213     return this.authService.isLoggedIn()
 214   }
 215
 216   canUserUpdateVideo () {
 217     return this.video.isUpdatableBy(this.authService.getUser())
 218   }
 219
 220   isVideoRemovable () {
 221     return this.video.isRemovableBy(this.authService.getUser())
 222   }
 223
 224   isVideoBlacklistable () {
 225     return this.video.isBlackistableBy(this.authService.getUser())
 226   }
 227
 228   private updateVideoDescription (description: string) {
 229     this.video.description = description
 230     this.setVideoDescriptionHTML()
 231   }
 232
 233   private setVideoDescriptionHTML () {
 234     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 235   }
 236
 237   private handleError (err: any) {
 238     const errorMessage: string = typeof err === 'string' ? err : err.message
 239     let message = ''
 240
 241     if (errorMessage.indexOf('http error') !== -1) {
 242       message = 'Cannot fetch video from server, maybe down.'
 243     } else {
 244       message = errorMessage
 245     }
 246
 247     this.notificationsService.error('Error', message)
 248   }
 249
 250   private checkUserRating () {
 251     // Unlogged users do not have ratings
 252     if (this.isUserLoggedIn() === false) return
 253
 254     this.videoService.getUserVideoRating(this.video.id)
 255                      .subscribe(
 256                        ratingObject => {
 257                          if (ratingObject) {
 258                            this.userRating = ratingObject.rating
 259                          }
 260                        },
 261
 262                        err => this.notificationsService.error('Error', err.message)
 263                       )
 264   }
 265
 266   private onVideoFetched (video: VideoDetails) {
 267     this.video = video
 268
 269     let observable
 270     if (this.video.isVideoNSFWForUser(this.authService.getUser())) {
 271       observable = this.confirmService.confirm(
 272         'This video contains mature or explicit content. Are you sure you want to watch it?',
 273         'Mature or explicit content'
 274       )
 275     } else {
 276       observable = Observable.of(true)
 277     }
 278
 279     observable.subscribe(
 280       res => {
 281         if (res === false) {
 282
 283           return this.router.navigate([ '/videos/list' ])
 284         }
 285
 286         this.playerElement = this.elementRef.nativeElement.querySelector('#video-container')
 287
 288         const videojsOptions = {
 289           controls: true,
 290           autoplay: true,
 291           plugins: {
 292             peertube: {
 293               videoFiles: this.video.files,
 294               playerElement: this.playerElement,
 295               autoplay: true,
 296               peerTubeLink: false
 297             }
 298           }
 299         }
 300
 301         this.videoPlayerLoaded = true
 302
 303         const self = this
 304         videojs(this.playerElement, videojsOptions, function () {
 305           self.player = this
 306           this.on('customError', (event, data) => {
 307             self.handleError(data.err)
 308           })
 309
 310           this.on('torrentInfo', (event, data) => {
 311             self.downloadSpeed = data.downloadSpeed
 312             self.numPeers = data.numPeers
 313             self.uploadSpeed = data.uploadSpeed
 314           })
 315         })
 316
 317         this.setVideoDescriptionHTML()
 318
 319         this.setOpenGraphTags()
 320         this.checkUserRating()
 321
 322         this.prepareViewAdd()
 323       }
 324     )
 325   }
 326
 327   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 328     let likesToIncrement = 0
 329     let dislikesToIncrement = 0
 330
 331     if (oldRating) {
 332       if (oldRating === 'like') likesToIncrement--
 333       if (oldRating === 'dislike') dislikesToIncrement--
 334     }
 335
 336     if (newRating === 'like') likesToIncrement++
 337     if (newRating === 'dislike') dislikesToIncrement++
 338
 339     this.video.likes += likesToIncrement
 340     this.video.dislikes += dislikesToIncrement
 341   }
 342
 343   private setOpenGraphTags () {
 344     this.metaService.setTitle(this.video.name)
 345
 346     this.metaService.setTag('og:type', 'video')
 347
 348     this.metaService.setTag('og:title', this.video.name)
 349     this.metaService.setTag('name', this.video.name)
 350
 351     this.metaService.setTag('og:description', this.video.description)
 352     this.metaService.setTag('description', this.video.description)
 353
 354     this.metaService.setTag('og:image', this.video.previewPath)
 355
 356     this.metaService.setTag('og:duration', this.video.duration.toString())
 357
 358     this.metaService.setTag('og:site_name', 'PeerTube')
 359
 360     this.metaService.setTag('og:url', window.location.href)
 361     this.metaService.setTag('url', window.location.href)
 362   }
 363
 364   private prepareViewAdd () {
 365     // After 30 seconds (or 3/4 of the video), increment add a view
 366     let viewTimeoutSeconds = 30
 367     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 368
 369     setTimeout(() => {
 370       this.videoService
 371         .viewVideo(this.video.uuid)
 372         .subscribe()
 373
 374     }, viewTimeoutSeconds * 1000)
 375   }
 376 }