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 { VideoDetails } from '../../shared/video/video-details.model'
  15 import { Video } from '../../shared/video/video.model'
  16 import { MarkdownService } from '../shared'
  17 import { VideoDownloadComponent } from './video-download.component'
  18 import { VideoReportComponent } from './video-report.component'
  19 import { VideoShareComponent } from './video-share.component'
  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   isVideoBlacklistable () {
 203     return this.video.isBlackistableBy(this.authService.getUser())
 204   }
 205
 206   getAvatarPath () {
 207     return Account.GET_ACCOUNT_AVATAR_PATH(this.video.account)
 208   }
 209
 210   getVideoTags () {
 211     if (!this.video || Array.isArray(this.video.tags) === false) return []
 212
 213     return this.video.tags.join(', ')
 214   }
 215
 216   private updateVideoDescription (description: string) {
 217     this.video.description = description
 218     this.setVideoDescriptionHTML()
 219   }
 220
 221   private setVideoDescriptionHTML () {
 222     if (!this.video.description) {
 223       this.videoHTMLDescription = ''
 224       return
 225     }
 226
 227     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 228   }
 229
 230   private handleError (err: any) {
 231     const errorMessage: string = typeof err === 'string' ? err : err.message
 232     let message = ''
 233
 234     if (errorMessage.indexOf('http error') !== -1) {
 235       message = 'Cannot fetch video from server, maybe down.'
 236     } else {
 237       message = errorMessage
 238     }
 239
 240     this.notificationsService.error('Error', message)
 241   }
 242
 243   private checkUserRating () {
 244     // Unlogged users do not have ratings
 245     if (this.isUserLoggedIn() === false) return
 246
 247     this.videoService.getUserVideoRating(this.video.id)
 248                      .subscribe(
 249                        ratingObject => {
 250                          if (ratingObject) {
 251                            this.userRating = ratingObject.rating
 252                          }
 253                        },
 254
 255                        err => this.notificationsService.error('Error', err.message)
 256                       )
 257   }
 258
 259   private onVideoFetched (video: VideoDetails) {
 260     this.video = video
 261
 262     let observable
 263     if (this.video.isVideoNSFWForUser(this.authService.getUser())) {
 264       observable = this.confirmService.confirm(
 265         'This video contains mature or explicit content. Are you sure you want to watch it?',
 266         'Mature or explicit content'
 267       )
 268     } else {
 269       observable = Observable.of(true)
 270     }
 271
 272     observable.subscribe(
 273       res => {
 274         if (res === false) {
 275
 276           return this.router.navigate([ '/videos/list' ])
 277         }
 278
 279         this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 280
 281         const videojsOptions = {
 282           controls: true,
 283           autoplay: true,
 284           plugins: {
 285             peertube: {
 286               videoFiles: this.video.files,
 287               playerElement: this.playerElement,
 288               autoplay: true,
 289               peerTubeLink: false
 290             }
 291           }
 292         }
 293
 294         this.videoPlayerLoaded = true
 295
 296         const self = this
 297         videojs(this.playerElement, videojsOptions, function () {
 298           self.player = this
 299           this.on('customError', (event, data) => {
 300             self.handleError(data.err)
 301           })
 302         })
 303
 304         this.setVideoDescriptionHTML()
 305
 306         this.setOpenGraphTags()
 307         this.checkUserRating()
 308
 309         this.prepareViewAdd()
 310       }
 311     )
 312   }
 313
 314   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 315     let likesToIncrement = 0
 316     let dislikesToIncrement = 0
 317
 318     if (oldRating) {
 319       if (oldRating === 'like') likesToIncrement--
 320       if (oldRating === 'dislike') dislikesToIncrement--
 321     }
 322
 323     if (newRating === 'like') likesToIncrement++
 324     if (newRating === 'dislike') dislikesToIncrement++
 325
 326     this.video.likes += likesToIncrement
 327     this.video.dislikes += dislikesToIncrement
 328   }
 329
 330   private setOpenGraphTags () {
 331     this.metaService.setTitle(this.video.name)
 332
 333     this.metaService.setTag('og:type', 'video')
 334
 335     this.metaService.setTag('og:title', this.video.name)
 336     this.metaService.setTag('name', this.video.name)
 337
 338     this.metaService.setTag('og:description', this.video.description)
 339     this.metaService.setTag('description', this.video.description)
 340
 341     this.metaService.setTag('og:image', this.video.previewPath)
 342
 343     this.metaService.setTag('og:duration', this.video.duration.toString())
 344
 345     this.metaService.setTag('og:site_name', 'PeerTube')
 346
 347     this.metaService.setTag('og:url', window.location.href)
 348     this.metaService.setTag('url', window.location.href)
 349   }
 350
 351   private prepareViewAdd () {
 352     // After 30 seconds (or 3/4 of the video), increment add a view
 353     let viewTimeoutSeconds = 30
 354     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 355
 356     setTimeout(() => {
 357       this.videoService
 358         .viewVideo(this.video.uuid)
 359         .subscribe()
 360
 361     }, viewTimeoutSeconds * 1000)
 362   }
 363 }