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 { VideoDownloadComponent } from './video-download.component'
  14 import { VideoShareComponent } from './video-share.component'
  15 import { VideoReportComponent } from './video-report.component'
  16 import { VideoDetails, VideoService, MarkdownService } from '../shared'
  17 import { VideoBlacklistService } from '../../shared'
  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('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  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: VideoDetails = null
  39   videoPlayerLoaded = false
  40   videoNotFound = 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     this.completeDescriptionShown = true
 163
 164     if (this.completeVideoDescription === undefined) {
 165       return this.loadCompleteDescription()
 166     }
 167
 168     this.updateVideoDescription(this.completeVideoDescription)
 169   }
 170
 171   showLessDescription () {
 172     this.completeDescriptionShown = false
 173
 174     this.updateVideoDescription(this.shortVideoDescription)
 175   }
 176
 177   loadCompleteDescription () {
 178     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 179       .subscribe(
 180         description => {
 181           this.shortVideoDescription = this.video.description
 182           this.completeVideoDescription = description
 183
 184           this.updateVideoDescription(this.completeVideoDescription)
 185         },
 186
 187         error => this.notificationsService.error('Error', error.text)
 188       )
 189   }
 190
 191   showReportModal (event: Event) {
 192     event.preventDefault()
 193     this.videoReportModal.show()
 194   }
 195
 196   showShareModal () {
 197     this.videoShareModal.show()
 198   }
 199
 200   showDownloadModal (event: Event) {
 201     event.preventDefault()
 202     this.videoDownloadModal.show()
 203   }
 204
 205   isUserLoggedIn () {
 206     return this.authService.isLoggedIn()
 207   }
 208
 209   canUserUpdateVideo () {
 210     return this.video.isUpdatableBy(this.authService.getUser())
 211   }
 212
 213   isVideoRemovable () {
 214     return this.video.isRemovableBy(this.authService.getUser())
 215   }
 216
 217   isVideoBlacklistable () {
 218     return this.video.isBlackistableBy(this.authService.getUser())
 219   }
 220
 221   private updateVideoDescription (description: string) {
 222     this.video.description = description
 223     this.setVideoDescriptionHTML()
 224   }
 225
 226   private setVideoDescriptionHTML () {
 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-container')
 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           this.on('torrentInfo', (event, data) => {
 304             self.downloadSpeed = data.downloadSpeed
 305             self.numPeers = data.numPeers
 306             self.uploadSpeed = data.uploadSpeed
 307           })
 308         })
 309
 310         this.setVideoDescriptionHTML()
 311
 312         this.setOpenGraphTags()
 313         this.checkUserRating()
 314       }
 315     )
 316   }
 317
 318   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 319     let likesToIncrement = 0
 320     let dislikesToIncrement = 0
 321
 322     if (oldRating) {
 323       if (oldRating === 'like') likesToIncrement--
 324       if (oldRating === 'dislike') dislikesToIncrement--
 325     }
 326
 327     if (newRating === 'like') likesToIncrement++
 328     if (newRating === 'dislike') dislikesToIncrement++
 329
 330     this.video.likes += likesToIncrement
 331     this.video.dislikes += dislikesToIncrement
 332   }
 333
 334   private setOpenGraphTags () {
 335     this.metaService.setTitle(this.video.name)
 336
 337     this.metaService.setTag('og:type', 'video')
 338
 339     this.metaService.setTag('og:title', this.video.name)
 340     this.metaService.setTag('name', this.video.name)
 341
 342     this.metaService.setTag('og:description', this.video.description)
 343     this.metaService.setTag('description', this.video.description)
 344
 345     this.metaService.setTag('og:image', this.video.previewPath)
 346
 347     this.metaService.setTag('og:duration', this.video.duration.toString())
 348
 349     this.metaService.setTag('og:site_name', 'PeerTube')
 350
 351     this.metaService.setTag('og:url', window.location.href)
 352     this.metaService.setTag('url', window.location.href)
 353   }
 354 }