client/src/app/videos/+video-watch/video-watch.component.ts

   1 import { Component, ElementRef, NgZone, 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 'videojs-hotkeys'
   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 { VideoService } from '../../shared/video/video.service'
  17 import { MarkdownService } from '../shared'
  18 import { VideoDownloadComponent } from './modal/video-download.component'
  19 import { VideoReportComponent } from './modal/video-report.component'
  20 import { VideoShareComponent } from './modal/video-share.component'
  21
  22 @Component({
  23   selector: 'my-video-watch',
  24   templateUrl: './video-watch.component.html',
  25   styleUrls: [ './video-watch.component.scss' ]
  26 })
  27 export class VideoWatchComponent implements OnInit, OnDestroy {
  28   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  29   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  30   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  31
  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 otherVideos: Video[] = []
  51   private paramsSub: Subscription
  52
  53   constructor (
  54     private elementRef: ElementRef,
  55     private route: ActivatedRoute,
  56     private router: Router,
  57     private videoService: VideoService,
  58     private videoBlacklistService: VideoBlacklistService,
  59     private confirmService: ConfirmService,
  60     private metaService: MetaService,
  61     private authService: AuthService,
  62     private notificationsService: NotificationsService,
  63     private markdownService: MarkdownService,
  64     private zone: NgZone
  65   ) {}
  66
  67   get user () {
  68     return this.authService.getUser()
  69   }
  70
  71   ngOnInit () {
  72     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  73       .subscribe(
  74         data => this.otherVideos = data.videos,
  75         err => console.error(err)
  76       )
  77
  78     this.paramsSub = this.route.params.subscribe(routeParams => {
  79       if (this.videoPlayerLoaded) {
  80         this.player.pause()
  81       }
  82
  83       let uuid = routeParams['uuid']
  84       this.videoService.getVideo(uuid).subscribe(
  85         video => this.onVideoFetched(video),
  86
  87         error => {
  88           this.videoNotFound = true
  89           console.error(error)
  90         }
  91       )
  92     })
  93   }
  94
  95   ngOnDestroy () {
  96     // Remove player if it exists
  97     if (this.videoPlayerLoaded === true) {
  98       videojs(this.playerElement).dispose()
  99     }
 100
 101     // Unsubscribe subscriptions
 102     this.paramsSub.unsubscribe()
 103   }
 104
 105   setLike () {
 106     if (this.isUserLoggedIn() === false) return
 107     if (this.userRating === 'like') {
 108       // Already liked this video
 109       this.setRating('none')
 110     } else {
 111       this.setRating('like')
 112     }
 113   }
 114
 115   setDislike () {
 116     if (this.isUserLoggedIn() === false) return
 117     if (this.userRating === 'dislike') {
 118       // Already disliked this video
 119       this.setRating('none')
 120     } else {
 121       this.setRating('dislike')
 122     }
 123   }
 124
 125   blacklistVideo (event: Event) {
 126     event.preventDefault()
 127
 128     this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist').subscribe(
 129       res => {
 130         if (res === false) return
 131
 132         this.videoBlacklistService.blacklistVideo(this.video.id)
 133                                   .subscribe(
 134                                     status => {
 135                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 136                                       this.router.navigate(['/videos/list'])
 137                                     },
 138
 139                                     error => this.notificationsService.error('Error', error.message)
 140                                   )
 141       }
 142     )
 143   }
 144
 145   showMoreDescription () {
 146     if (this.completeVideoDescription === undefined) {
 147       return this.loadCompleteDescription()
 148     }
 149
 150     this.updateVideoDescription(this.completeVideoDescription)
 151     this.completeDescriptionShown = true
 152   }
 153
 154   showLessDescription () {
 155     this.updateVideoDescription(this.shortVideoDescription)
 156     this.completeDescriptionShown = false
 157   }
 158
 159   loadCompleteDescription () {
 160     this.descriptionLoading = true
 161
 162     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 163       .subscribe(
 164         description => {
 165           this.completeDescriptionShown = true
 166           this.descriptionLoading = false
 167
 168           this.shortVideoDescription = this.video.description
 169           this.completeVideoDescription = description
 170
 171           this.updateVideoDescription(this.completeVideoDescription)
 172         },
 173
 174         error => {
 175           this.descriptionLoading = false
 176           this.notificationsService.error('Error', error.message)
 177         }
 178       )
 179   }
 180
 181   showReportModal (event: Event) {
 182     event.preventDefault()
 183     this.videoReportModal.show()
 184   }
 185
 186   showShareModal () {
 187     this.videoShareModal.show()
 188   }
 189
 190   showDownloadModal (event: Event) {
 191     event.preventDefault()
 192     this.videoDownloadModal.show()
 193   }
 194
 195   isUserLoggedIn () {
 196     return this.authService.isLoggedIn()
 197   }
 198
 199   isVideoUpdatable () {
 200     return this.video.isUpdatableBy(this.authService.getUser())
 201   }
 202
 203   isVideoBlacklistable () {
 204     return this.video.isBlackistableBy(this.user)
 205   }
 206
 207   getAvatarPath () {
 208     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 209   }
 210
 211   getVideoTags () {
 212     if (!this.video || Array.isArray(this.video.tags) === false) return []
 213
 214     return this.video.tags.join(', ')
 215   }
 216
 217   isVideoRemovable () {
 218     return this.video.isRemovableBy(this.authService.getUser())
 219   }
 220
 221   removeVideo (event: Event) {
 222     event.preventDefault()
 223
 224     this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 225       .subscribe(
 226         res => {
 227           if (res === false) return
 228
 229           this.videoService.removeVideo(this.video.id)
 230             .subscribe(
 231               status => {
 232                 this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 233
 234                 // Go back to the video-list.
 235                 this.router.navigate([ '/videos/list' ])
 236               },
 237
 238               error => this.notificationsService.error('Error', error.message)
 239             )
 240         }
 241       )
 242   }
 243
 244   private updateVideoDescription (description: string) {
 245     this.video.description = description
 246     this.setVideoDescriptionHTML()
 247   }
 248
 249   private setVideoDescriptionHTML () {
 250     if (!this.video.description) {
 251       this.videoHTMLDescription = ''
 252       return
 253     }
 254
 255     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 256   }
 257
 258   private setVideoLikesBarTooltipText () {
 259     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 260   }
 261
 262   private handleError (err: any) {
 263     const errorMessage: string = typeof err === 'string' ? err : err.message
 264     let message = ''
 265
 266     if (errorMessage.indexOf('http error') !== -1) {
 267       message = 'Cannot fetch video from server, maybe down.'
 268     } else {
 269       message = errorMessage
 270     }
 271
 272     this.notificationsService.error('Error', message)
 273   }
 274
 275   private checkUserRating () {
 276     // Unlogged users do not have ratings
 277     if (this.isUserLoggedIn() === false) return
 278
 279     this.videoService.getUserVideoRating(this.video.id)
 280                      .subscribe(
 281                        ratingObject => {
 282                          if (ratingObject) {
 283                            this.userRating = ratingObject.rating
 284                          }
 285                        },
 286
 287                        err => this.notificationsService.error('Error', err.message)
 288                       )
 289   }
 290
 291   private onVideoFetched (video: VideoDetails) {
 292     this.video = video
 293
 294     if (this.otherVideos.length > 0) {
 295       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 296     }
 297
 298     let observable
 299     if (this.video.isVideoNSFWForUser(this.user)) {
 300       observable = this.confirmService.confirm(
 301         'This video contains mature or explicit content. Are you sure you want to watch it?',
 302         'Mature or explicit content'
 303       )
 304     } else {
 305       observable = Observable.of(true)
 306     }
 307
 308     observable.subscribe(
 309       res => {
 310         if (res === false) {
 311
 312           return this.router.navigate([ '/videos/list' ])
 313         }
 314
 315         // Player was already loaded
 316         if (this.videoPlayerLoaded !== true) {
 317           this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 318
 319           // If autoplay is true, we don't really need a poster
 320           if (this.isAutoplay() === false) {
 321             this.playerElement.poster = this.video.previewUrl
 322           }
 323
 324           const videojsOptions = {
 325             controls: true,
 326             autoplay: this.isAutoplay(),
 327             plugins: {
 328               peertube: {
 329                 videoFiles: this.video.files,
 330                 playerElement: this.playerElement,
 331                 peerTubeLink: false
 332               },
 333               hotkeys: {
 334                 enableVolumeScroll: false
 335               }
 336             }
 337           }
 338
 339           this.videoPlayerLoaded = true
 340
 341           const self = this
 342           this.zone.runOutsideAngular(() => {
 343             videojs(this.playerElement, videojsOptions, function () {
 344               self.player = this
 345               this.on('customError', (event, data) => {
 346                 self.handleError(data.err)
 347               })
 348             })
 349           })
 350         } else {
 351           (this.player as any).setVideoFiles(this.video.files)
 352         }
 353
 354         this.setVideoDescriptionHTML()
 355         this.setVideoLikesBarTooltipText()
 356
 357         this.setOpenGraphTags()
 358         this.checkUserRating()
 359
 360         this.prepareViewAdd()
 361       }
 362     )
 363   }
 364
 365   private setRating (nextRating) {
 366     let method
 367     switch (nextRating) {
 368       case 'like':
 369         method = this.videoService.setVideoLike
 370         break
 371       case 'dislike':
 372         method = this.videoService.setVideoDislike
 373         break
 374       case 'none':
 375         method = this.videoService.unsetVideoLike
 376         break
 377     }
 378
 379     method.call(this.videoService, this.video.id)
 380      .subscribe(
 381       () => {
 382         // Update the video like attribute
 383         this.updateVideoRating(this.userRating, nextRating)
 384         this.userRating = nextRating
 385       },
 386       err => this.notificationsService.error('Error', err.message)
 387      )
 388   }
 389
 390   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 391     let likesToIncrement = 0
 392     let dislikesToIncrement = 0
 393
 394     if (oldRating) {
 395       if (oldRating === 'like') likesToIncrement--
 396       if (oldRating === 'dislike') dislikesToIncrement--
 397     }
 398
 399     if (newRating === 'like') likesToIncrement++
 400     if (newRating === 'dislike') dislikesToIncrement++
 401
 402     this.video.likes += likesToIncrement
 403     this.video.dislikes += dislikesToIncrement
 404   }
 405
 406   private setOpenGraphTags () {
 407     this.metaService.setTitle(this.video.name)
 408
 409     this.metaService.setTag('og:type', 'video')
 410
 411     this.metaService.setTag('og:title', this.video.name)
 412     this.metaService.setTag('name', this.video.name)
 413
 414     this.metaService.setTag('og:description', this.video.description)
 415     this.metaService.setTag('description', this.video.description)
 416
 417     this.metaService.setTag('og:image', this.video.previewPath)
 418
 419     this.metaService.setTag('og:duration', this.video.duration.toString())
 420
 421     this.metaService.setTag('og:site_name', 'PeerTube')
 422
 423     this.metaService.setTag('og:url', window.location.href)
 424     this.metaService.setTag('url', window.location.href)
 425   }
 426
 427   private prepareViewAdd () {
 428     // After 30 seconds (or 3/4 of the video), increment add a view
 429     let viewTimeoutSeconds = 30
 430     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 431
 432     setTimeout(() => {
 433       this.videoService
 434         .viewVideo(this.video.uuid)
 435         .subscribe()
 436
 437     }, viewTimeoutSeconds * 1000)
 438   }
 439
 440   private isAutoplay () {
 441     // True by default
 442     if (!this.user) return true
 443
 444     // Be sure the autoPlay is set to false
 445     return this.user.autoPlayVideo !== false
 446   }
 447 }