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 { Observable } from 'rxjs/Observable'
   6 import { Subscription } from 'rxjs/Subscription'
   7 import * as videojs from 'video.js'
   8 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
   9 import '../../../assets/player/peertube-videojs-plugin'
  10 import { AuthService, ConfirmService } from '../../core'
  11 import { VideoBlacklistService } from '../../shared'
  12 import { Account } from '../../shared/account/account.model'
  13 import { VideoDetails } from '../../shared/video/video-details.model'
  14 import { Video } from '../../shared/video/video.model'
  15 import { VideoService } from '../../shared/video/video.service'
  16 import { MarkdownService } from '../shared'
  17 import { VideoDownloadComponent } from './modal/video-download.component'
  18 import { VideoReportComponent } from './modal/video-report.component'
  19 import { VideoShareComponent } from './modal/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   otherVideosDisplayed: Video[] = []
  33
  34   error = false
  35   loading = false
  36   player: videojs.Player
  37   playerElement: HTMLVideoElement
  38   userRating: UserVideoRateType = null
  39   video: VideoDetails = null
  40   videoPlayerLoaded = false
  41   videoNotFound = false
  42   descriptionLoading = false
  43
  44   completeDescriptionShown = false
  45   completeVideoDescription: string
  46   shortVideoDescription: string
  47   videoHTMLDescription = ''
  48   likesBarTooltipText = ''
  49
  50   private paramsSub: Subscription
  51
  52   constructor (
  53     private elementRef: ElementRef,
  54     private route: ActivatedRoute,
  55     private router: Router,
  56     private videoService: VideoService,
  57     private videoBlacklistService: VideoBlacklistService,
  58     private confirmService: ConfirmService,
  59     private metaService: MetaService,
  60     private authService: AuthService,
  61     private notificationsService: NotificationsService,
  62     private markdownService: MarkdownService
  63   ) {}
  64
  65   get user () {
  66     return this.authService.getUser()
  67   }
  68
  69   ngOnInit () {
  70     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  71       .subscribe(
  72         data => this.otherVideos = data.videos,
  73         err => console.error(err)
  74       )
  75
  76     this.paramsSub = this.route.params.subscribe(routeParams => {
  77       if (this.videoPlayerLoaded) {
  78         this.player.pause()
  79       }
  80
  81       let uuid = routeParams['uuid']
  82       this.videoService.getVideo(uuid).subscribe(
  83         video => this.onVideoFetched(video),
  84
  85         error => {
  86           this.videoNotFound = true
  87           console.error(error)
  88         }
  89       )
  90     })
  91   }
  92
  93   ngOnDestroy () {
  94     // Remove player if it exists
  95     if (this.videoPlayerLoaded === true) {
  96       videojs(this.playerElement).dispose()
  97     }
  98
  99     // Unsubscribe subscriptions
 100     this.paramsSub.unsubscribe()
 101   }
 102
 103   setLike () {
 104     if (this.isUserLoggedIn() === false) return
 105     if (this.userRating === 'like') {
 106       // Already liked this video
 107       this.setRating('none')
 108     } else {
 109       this.setRating('like')
 110     }
 111   }
 112
 113   setDislike () {
 114     if (this.isUserLoggedIn() === false) return
 115     if (this.userRating === 'dislike') {
 116       // Already disliked this video
 117       this.setRating('none')
 118     } else {
 119       this.setRating('dislike')
 120     }
 121   }
 122
 123   blacklistVideo (event: Event) {
 124     event.preventDefault()
 125
 126     this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist').subscribe(
 127       res => {
 128         if (res === false) return
 129
 130         this.videoBlacklistService.blacklistVideo(this.video.id)
 131                                   .subscribe(
 132                                     status => {
 133                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 134                                       this.router.navigate(['/videos/list'])
 135                                     },
 136
 137                                     error => this.notificationsService.error('Error', error.message)
 138                                   )
 139       }
 140     )
 141   }
 142
 143   showMoreDescription () {
 144     if (this.completeVideoDescription === undefined) {
 145       return this.loadCompleteDescription()
 146     }
 147
 148     this.updateVideoDescription(this.completeVideoDescription)
 149     this.completeDescriptionShown = true
 150   }
 151
 152   showLessDescription () {
 153     this.updateVideoDescription(this.shortVideoDescription)
 154     this.completeDescriptionShown = false
 155   }
 156
 157   loadCompleteDescription () {
 158     this.descriptionLoading = true
 159
 160     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 161       .subscribe(
 162         description => {
 163           this.completeDescriptionShown = true
 164           this.descriptionLoading = false
 165
 166           this.shortVideoDescription = this.video.description
 167           this.completeVideoDescription = description
 168
 169           this.updateVideoDescription(this.completeVideoDescription)
 170         },
 171
 172         error => {
 173           this.descriptionLoading = false
 174           this.notificationsService.error('Error', error.message)
 175         }
 176       )
 177   }
 178
 179   showReportModal (event: Event) {
 180     event.preventDefault()
 181     this.videoReportModal.show()
 182   }
 183
 184   showShareModal () {
 185     this.videoShareModal.show()
 186   }
 187
 188   showDownloadModal (event: Event) {
 189     event.preventDefault()
 190     this.videoDownloadModal.show()
 191   }
 192
 193   isUserLoggedIn () {
 194     return this.authService.isLoggedIn()
 195   }
 196
 197   isVideoUpdatable () {
 198     return this.video.isUpdatableBy(this.authService.getUser())
 199   }
 200
 201   isVideoBlacklistable () {
 202     return this.video.isBlackistableBy(this.user)
 203   }
 204
 205   getAvatarPath () {
 206     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 207   }
 208
 209   getVideoTags () {
 210     if (!this.video || Array.isArray(this.video.tags) === false) return []
 211
 212     return this.video.tags.join(', ')
 213   }
 214
 215   isVideoRemovable () {
 216     return this.video.isRemovableBy(this.authService.getUser())
 217   }
 218
 219   removeVideo (event: Event) {
 220     event.preventDefault()
 221
 222     this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 223       .subscribe(
 224         res => {
 225           if (res === false) return
 226
 227           this.videoService.removeVideo(this.video.id)
 228             .subscribe(
 229               status => {
 230                 this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 231
 232                 // Go back to the video-list.
 233                 this.router.navigate([ '/videos/list' ])
 234               },
 235
 236               error => this.notificationsService.error('Error', error.message)
 237             )
 238         }
 239       )
 240   }
 241
 242   private updateVideoDescription (description: string) {
 243     this.video.description = description
 244     this.setVideoDescriptionHTML()
 245   }
 246
 247   private setVideoDescriptionHTML () {
 248     if (!this.video.description) {
 249       this.videoHTMLDescription = ''
 250       return
 251     }
 252
 253     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 254   }
 255
 256   private setVideoLikesBarTooltipText () {
 257     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 258   }
 259
 260   private handleError (err: any) {
 261     const errorMessage: string = typeof err === 'string' ? err : err.message
 262     let message = ''
 263
 264     if (errorMessage.indexOf('http error') !== -1) {
 265       message = 'Cannot fetch video from server, maybe down.'
 266     } else {
 267       message = errorMessage
 268     }
 269
 270     this.notificationsService.error('Error', message)
 271   }
 272
 273   private checkUserRating () {
 274     // Unlogged users do not have ratings
 275     if (this.isUserLoggedIn() === false) return
 276
 277     this.videoService.getUserVideoRating(this.video.id)
 278                      .subscribe(
 279                        ratingObject => {
 280                          if (ratingObject) {
 281                            this.userRating = ratingObject.rating
 282                          }
 283                        },
 284
 285                        err => this.notificationsService.error('Error', err.message)
 286                       )
 287   }
 288
 289   private onVideoFetched (video: VideoDetails) {
 290     this.video = video
 291
 292     if (this.otherVideos.length > 0) {
 293       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 294     }
 295
 296     let observable
 297     if (this.video.isVideoNSFWForUser(this.user)) {
 298       observable = this.confirmService.confirm(
 299         'This video contains mature or explicit content. Are you sure you want to watch it?',
 300         'Mature or explicit content'
 301       )
 302     } else {
 303       observable = Observable.of(true)
 304     }
 305
 306     observable.subscribe(
 307       res => {
 308         if (res === false) {
 309
 310           return this.router.navigate([ '/videos/list' ])
 311         }
 312
 313         // Player was already loaded
 314         if (this.videoPlayerLoaded !== true) {
 315           this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 316
 317           // If autoplay is true, we don't really need a poster
 318           if (this.isAutoplay() === false) {
 319             this.playerElement.poster = this.video.previewUrl
 320           }
 321
 322           const videojsOptions = {
 323             controls: true,
 324             autoplay: this.isAutoplay(),
 325             plugins: {
 326               peertube: {
 327                 videoFiles: this.video.files,
 328                 playerElement: this.playerElement,
 329                 autoplay: this.isAutoplay(),
 330                 peerTubeLink: false
 331               }
 332             }
 333           }
 334
 335           this.videoPlayerLoaded = true
 336
 337           const self = this
 338           videojs(this.playerElement, videojsOptions, function () {
 339             self.player = this
 340             this.on('customError', (event, data) => {
 341               self.handleError(data.err)
 342             })
 343           })
 344         } else {
 345           (this.player as any).setVideoFiles(this.video.files)
 346         }
 347
 348         this.setVideoDescriptionHTML()
 349         this.setVideoLikesBarTooltipText()
 350
 351         this.setOpenGraphTags()
 352         this.checkUserRating()
 353
 354         this.prepareViewAdd()
 355       }
 356     )
 357   }
 358
 359   private setRating (nextRating) {
 360     let method
 361     switch (nextRating) {
 362       case 'like':
 363         method = this.videoService.setVideoLike
 364         break
 365       case 'dislike':
 366         method = this.videoService.setVideoDislike
 367         break
 368       case 'none':
 369         method = this.videoService.unsetVideoLike
 370         break
 371     }
 372
 373     method.call(this.videoService, this.video.id)
 374      .subscribe(
 375       () => {
 376         // Update the video like attribute
 377         this.updateVideoRating(this.userRating, nextRating)
 378         this.userRating = nextRating
 379       },
 380       err => this.notificationsService.error('Error', err.message)
 381      )
 382   }
 383
 384   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 385     let likesToIncrement = 0
 386     let dislikesToIncrement = 0
 387
 388     if (oldRating) {
 389       if (oldRating === 'like') likesToIncrement--
 390       if (oldRating === 'dislike') dislikesToIncrement--
 391     }
 392
 393     if (newRating === 'like') likesToIncrement++
 394     if (newRating === 'dislike') dislikesToIncrement++
 395
 396     this.video.likes += likesToIncrement
 397     this.video.dislikes += dislikesToIncrement
 398   }
 399
 400   private setOpenGraphTags () {
 401     this.metaService.setTitle(this.video.name)
 402
 403     this.metaService.setTag('og:type', 'video')
 404
 405     this.metaService.setTag('og:title', this.video.name)
 406     this.metaService.setTag('name', this.video.name)
 407
 408     this.metaService.setTag('og:description', this.video.description)
 409     this.metaService.setTag('description', this.video.description)
 410
 411     this.metaService.setTag('og:image', this.video.previewPath)
 412
 413     this.metaService.setTag('og:duration', this.video.duration.toString())
 414
 415     this.metaService.setTag('og:site_name', 'PeerTube')
 416
 417     this.metaService.setTag('og:url', window.location.href)
 418     this.metaService.setTag('url', window.location.href)
 419   }
 420
 421   private prepareViewAdd () {
 422     // After 30 seconds (or 3/4 of the video), increment add a view
 423     let viewTimeoutSeconds = 30
 424     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 425
 426     setTimeout(() => {
 427       this.videoService
 428         .viewVideo(this.video.uuid)
 429         .subscribe()
 430
 431     }, viewTimeoutSeconds * 1000)
 432   }
 433
 434   private isAutoplay () {
 435     // True by default
 436     if (!this.user) return true
 437
 438     // Be sure the autoPlay is set to false
 439     return this.user.autoPlayVideo !== false
 440   }
 441 }