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