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 { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   4 import { MetaService } from '@ngx-meta/core'
   5 import { NotificationsService } from 'angular2-notifications'
   6 import { Observable } from 'rxjs/Observable'
   7 import { Subscription } from 'rxjs/Subscription'
   8 import * as videojs from 'video.js'
   9 import 'videojs-hotkeys'
  10 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  11 import '../../../assets/player/peertube-videojs-plugin'
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { VideoBlacklistService } from '../../shared'
  14 import { Account } from '../../shared/account/account.model'
  15 import { VideoDetails } from '../../shared/video/video-details.model'
  16 import { Video } from '../../shared/video/video.model'
  17 import { VideoService } from '../../shared/video/video.service'
  18 import { MarkdownService } from '../shared'
  19 import { VideoDownloadComponent } from './modal/video-download.component'
  20 import { VideoReportComponent } from './modal/video-report.component'
  21 import { VideoShareComponent } from './modal/video-share.component'
  22
  23 @Component({
  24   selector: 'my-video-watch',
  25   templateUrl: './video-watch.component.html',
  26   styleUrls: [ './video-watch.component.scss' ]
  27 })
  28 export class VideoWatchComponent implements OnInit, OnDestroy {
  29   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  30   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  31   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  32   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  33
  34   otherVideosDisplayed: Video[] = []
  35
  36   error = false
  37   player: videojs.Player
  38   playerElement: HTMLVideoElement
  39   userRating: UserVideoRateType = null
  40   video: VideoDetails = null
  41   videoPlayerLoaded = false
  42   videoNotFound = false
  43   descriptionLoading = false
  44
  45   completeDescriptionShown = false
  46   completeVideoDescription: string
  47   shortVideoDescription: string
  48   videoHTMLDescription = ''
  49   likesBarTooltipText = ''
  50
  51   private otherVideos: Video[] = []
  52   private paramsSub: Subscription
  53
  54   constructor (
  55     private elementRef: ElementRef,
  56     private route: ActivatedRoute,
  57     private router: Router,
  58     private videoService: VideoService,
  59     private videoBlacklistService: VideoBlacklistService,
  60     private confirmService: ConfirmService,
  61     private metaService: MetaService,
  62     private authService: AuthService,
  63     private notificationsService: NotificationsService,
  64     private markdownService: MarkdownService,
  65     private zone: NgZone
  66   ) {}
  67
  68   get user () {
  69     return this.authService.getUser()
  70   }
  71
  72   ngOnInit () {
  73     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  74       .subscribe(
  75         data => {
  76           this.otherVideos = data.videos
  77           this.updateOtherVideosDisplayed()
  78         },
  79
  80         err => console.error(err)
  81       )
  82
  83     this.paramsSub = this.route.params.subscribe(routeParams => {
  84       if (this.videoPlayerLoaded) {
  85         this.player.pause()
  86       }
  87
  88       const uuid = routeParams['uuid']
  89       // Video did not changed
  90       if (this.video && this.video.uuid === uuid) return
  91
  92       this.videoService.getVideo(uuid).subscribe(
  93         video => this.onVideoFetched(video),
  94
  95         error => {
  96           this.videoNotFound = true
  97           console.error(error)
  98         }
  99       )
 100     })
 101   }
 102
 103   ngOnDestroy () {
 104     // Remove player if it exists
 105     if (this.videoPlayerLoaded === true) {
 106       videojs(this.playerElement).dispose()
 107     }
 108
 109     // Unsubscribe subscriptions
 110     this.paramsSub.unsubscribe()
 111   }
 112
 113   setLike () {
 114     if (this.isUserLoggedIn() === false) return
 115     if (this.userRating === 'like') {
 116       // Already liked this video
 117       this.setRating('none')
 118     } else {
 119       this.setRating('like')
 120     }
 121   }
 122
 123   setDislike () {
 124     if (this.isUserLoggedIn() === false) return
 125     if (this.userRating === 'dislike') {
 126       // Already disliked this video
 127       this.setRating('none')
 128     } else {
 129       this.setRating('dislike')
 130     }
 131   }
 132
 133   blacklistVideo (event: Event) {
 134     event.preventDefault()
 135
 136     this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist').subscribe(
 137       res => {
 138         if (res === false) return
 139
 140         this.videoBlacklistService.blacklistVideo(this.video.id)
 141                                   .subscribe(
 142                                     status => {
 143                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 144                                       this.router.navigate(['/videos/list'])
 145                                     },
 146
 147                                     error => this.notificationsService.error('Error', error.message)
 148                                   )
 149       }
 150     )
 151   }
 152
 153   showMoreDescription () {
 154     if (this.completeVideoDescription === undefined) {
 155       return this.loadCompleteDescription()
 156     }
 157
 158     this.updateVideoDescription(this.completeVideoDescription)
 159     this.completeDescriptionShown = true
 160   }
 161
 162   showLessDescription () {
 163     this.updateVideoDescription(this.shortVideoDescription)
 164     this.completeDescriptionShown = false
 165   }
 166
 167   loadCompleteDescription () {
 168     this.descriptionLoading = true
 169
 170     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 171       .subscribe(
 172         description => {
 173           this.completeDescriptionShown = true
 174           this.descriptionLoading = false
 175
 176           this.shortVideoDescription = this.video.description
 177           this.completeVideoDescription = description
 178
 179           this.updateVideoDescription(this.completeVideoDescription)
 180         },
 181
 182         error => {
 183           this.descriptionLoading = false
 184           this.notificationsService.error('Error', error.message)
 185         }
 186       )
 187   }
 188
 189   showReportModal (event: Event) {
 190     event.preventDefault()
 191     this.videoReportModal.show()
 192   }
 193
 194   showSupportModal () {
 195     this.videoSupportModal.show()
 196   }
 197
 198   showShareModal () {
 199     this.videoShareModal.show()
 200   }
 201
 202   showDownloadModal (event: Event) {
 203     event.preventDefault()
 204     this.videoDownloadModal.show()
 205   }
 206
 207   isUserLoggedIn () {
 208     return this.authService.isLoggedIn()
 209   }
 210
 211   isVideoUpdatable () {
 212     return this.video.isUpdatableBy(this.authService.getUser())
 213   }
 214
 215   isVideoBlacklistable () {
 216     return this.video.isBlackistableBy(this.user)
 217   }
 218
 219   getAvatarPath () {
 220     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 221   }
 222
 223   getVideoPoster () {
 224     if (!this.video) return ''
 225
 226     return this.video.previewUrl
 227   }
 228
 229   getVideoTags () {
 230     if (!this.video || Array.isArray(this.video.tags) === false) return []
 231
 232     return this.video.tags.join(', ')
 233   }
 234
 235   isVideoRemovable () {
 236     return this.video.isRemovableBy(this.authService.getUser())
 237   }
 238
 239   removeVideo (event: Event) {
 240     event.preventDefault()
 241
 242     this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 243       .subscribe(
 244         res => {
 245           if (res === false) return
 246
 247           this.videoService.removeVideo(this.video.id)
 248             .subscribe(
 249               status => {
 250                 this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 251
 252                 // Go back to the video-list.
 253                 this.router.navigate([ '/videos/list' ])
 254               },
 255
 256               error => this.notificationsService.error('Error', error.message)
 257             )
 258         }
 259       )
 260   }
 261
 262   private updateVideoDescription (description: string) {
 263     this.video.description = description
 264     this.setVideoDescriptionHTML()
 265   }
 266
 267   private setVideoDescriptionHTML () {
 268     if (!this.video.description) {
 269       this.videoHTMLDescription = ''
 270       return
 271     }
 272
 273     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 274   }
 275
 276   private setVideoLikesBarTooltipText () {
 277     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 278   }
 279
 280   private handleError (err: any) {
 281     const errorMessage: string = typeof err === 'string' ? err : err.message
 282     let message = ''
 283
 284     if (errorMessage.indexOf('http error') !== -1) {
 285       message = 'Cannot fetch video from server, maybe down.'
 286     } else {
 287       message = errorMessage
 288     }
 289
 290     this.notificationsService.error('Error', message)
 291   }
 292
 293   private checkUserRating () {
 294     // Unlogged users do not have ratings
 295     if (this.isUserLoggedIn() === false) return
 296
 297     this.videoService.getUserVideoRating(this.video.id)
 298                      .subscribe(
 299                        ratingObject => {
 300                          if (ratingObject) {
 301                            this.userRating = ratingObject.rating
 302                          }
 303                        },
 304
 305                        err => this.notificationsService.error('Error', err.message)
 306                       )
 307   }
 308
 309   private onVideoFetched (video: VideoDetails) {
 310     this.video = video
 311
 312     this.updateOtherVideosDisplayed()
 313
 314     let observable
 315     if (this.video.isVideoNSFWForUser(this.user)) {
 316       observable = this.confirmService.confirm(
 317         'This video contains mature or explicit content. Are you sure you want to watch it?',
 318         'Mature or explicit content'
 319       )
 320     } else {
 321       observable = Observable.of(true)
 322     }
 323
 324     observable.subscribe(
 325       res => {
 326         if (res === false) {
 327
 328           return this.router.navigate([ '/videos/list' ])
 329         }
 330
 331         // Player was already loaded
 332         if (this.videoPlayerLoaded !== true) {
 333           this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 334
 335           // If autoplay is true, we don't really need a poster
 336           if (this.isAutoplay() === false) {
 337             this.playerElement.poster = this.video.previewUrl
 338           }
 339
 340           const videojsOptions = {
 341             controls: true,
 342             autoplay: this.isAutoplay(),
 343             plugins: {
 344               peertube: {
 345                 videoFiles: this.video.files,
 346                 playerElement: this.playerElement,
 347                 peerTubeLink: false,
 348                 videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 349                 videoDuration: this.video.duration
 350               },
 351               hotkeys: {
 352                 enableVolumeScroll: false
 353               }
 354             }
 355           }
 356
 357           this.videoPlayerLoaded = true
 358
 359           const self = this
 360           this.zone.runOutsideAngular(() => {
 361             videojs(this.playerElement, videojsOptions, function () {
 362               self.player = this
 363               this.on('customError', (event, data) => {
 364                 self.handleError(data.err)
 365               })
 366             })
 367           })
 368         } else {
 369           const videoViewUrl = this.videoService.getVideoViewUrl(this.video.uuid)
 370           this.player.peertube().setVideoFiles(this.video.files, videoViewUrl, this.video.duration)
 371         }
 372
 373         this.setVideoDescriptionHTML()
 374         this.setVideoLikesBarTooltipText()
 375
 376         this.setOpenGraphTags()
 377         this.checkUserRating()
 378       }
 379     )
 380   }
 381
 382   private setRating (nextRating) {
 383     let method
 384     switch (nextRating) {
 385       case 'like':
 386         method = this.videoService.setVideoLike
 387         break
 388       case 'dislike':
 389         method = this.videoService.setVideoDislike
 390         break
 391       case 'none':
 392         method = this.videoService.unsetVideoLike
 393         break
 394     }
 395
 396     method.call(this.videoService, this.video.id)
 397      .subscribe(
 398       () => {
 399         // Update the video like attribute
 400         this.updateVideoRating(this.userRating, nextRating)
 401         this.userRating = nextRating
 402       },
 403       err => this.notificationsService.error('Error', err.message)
 404      )
 405   }
 406
 407   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 408     let likesToIncrement = 0
 409     let dislikesToIncrement = 0
 410
 411     if (oldRating) {
 412       if (oldRating === 'like') likesToIncrement--
 413       if (oldRating === 'dislike') dislikesToIncrement--
 414     }
 415
 416     if (newRating === 'like') likesToIncrement++
 417     if (newRating === 'dislike') dislikesToIncrement++
 418
 419     this.video.likes += likesToIncrement
 420     this.video.dislikes += dislikesToIncrement
 421   }
 422
 423   private updateOtherVideosDisplayed () {
 424     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 425       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 426     }
 427   }
 428
 429   private setOpenGraphTags () {
 430     this.metaService.setTitle(this.video.name)
 431
 432     this.metaService.setTag('og:type', 'video')
 433
 434     this.metaService.setTag('og:title', this.video.name)
 435     this.metaService.setTag('name', this.video.name)
 436
 437     this.metaService.setTag('og:description', this.video.description)
 438     this.metaService.setTag('description', this.video.description)
 439
 440     this.metaService.setTag('og:image', this.video.previewPath)
 441
 442     this.metaService.setTag('og:duration', this.video.duration.toString())
 443
 444     this.metaService.setTag('og:site_name', 'PeerTube')
 445
 446     this.metaService.setTag('og:url', window.location.href)
 447     this.metaService.setTag('url', window.location.href)
 448   }
 449
 450   private isAutoplay () {
 451     // True by default
 452     if (!this.user) return true
 453
 454     // Be sure the autoPlay is set to false
 455     return this.user.autoPlayVideo !== false
 456   }
 457 }