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 { RedirectService } from '@app/core/routing/redirect.service'
   4 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   5 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   6 import { MetaService } from '@ngx-meta/core'
   7 import { NotificationsService } from 'angular2-notifications'
   8 import { Subscription } from 'rxjs/Subscription'
   9 import * as videojs from 'video.js'
  10 import 'videojs-hotkeys'
  11 import * as WebTorrent from 'webtorrent'
  12 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  13 import '../../../assets/player/peertube-videojs-plugin'
  14 import { AuthService, ConfirmService } from '../../core'
  15 import { VideoBlacklistService } from '../../shared'
  16 import { Account } from '../../shared/account/account.model'
  17 import { VideoDetails } from '../../shared/video/video-details.model'
  18 import { Video } from '../../shared/video/video.model'
  19 import { VideoService } from '../../shared/video/video.service'
  20 import { MarkdownService } from '../shared'
  21 import { VideoDownloadComponent } from './modal/video-download.component'
  22 import { VideoReportComponent } from './modal/video-report.component'
  23 import { VideoShareComponent } from './modal/video-share.component'
  24 import { getVideojsOptions } from '../../../assets/player/peertube-player'
  25 import { ServerService } from '@app/core'
  26
  27 @Component({
  28   selector: 'my-video-watch',
  29   templateUrl: './video-watch.component.html',
  30   styleUrls: [ './video-watch.component.scss' ]
  31 })
  32 export class VideoWatchComponent implements OnInit, OnDestroy {
  33   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  34
  35   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  36   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  37   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  38   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  39
  40   otherVideosDisplayed: Video[] = []
  41
  42   player: videojs.Player
  43   playerElement: HTMLVideoElement
  44   userRating: UserVideoRateType = null
  45   video: VideoDetails = null
  46   videoNotFound = false
  47   descriptionLoading = false
  48
  49   completeDescriptionShown = false
  50   completeVideoDescription: string
  51   shortVideoDescription: string
  52   videoHTMLDescription = ''
  53   likesBarTooltipText = ''
  54   hasAlreadyAcceptedPrivacyConcern = false
  55
  56   private otherVideos: Video[] = []
  57   private paramsSub: Subscription
  58
  59   constructor (
  60     private elementRef: ElementRef,
  61     private route: ActivatedRoute,
  62     private router: Router,
  63     private videoService: VideoService,
  64     private videoBlacklistService: VideoBlacklistService,
  65     private confirmService: ConfirmService,
  66     private metaService: MetaService,
  67     private authService: AuthService,
  68     private serverService: ServerService,
  69     private notificationsService: NotificationsService,
  70     private markdownService: MarkdownService,
  71     private zone: NgZone,
  72     private redirectService: RedirectService
  73   ) {}
  74
  75   get user () {
  76     return this.authService.getUser()
  77   }
  78
  79   ngOnInit () {
  80     if (
  81       WebTorrent.WEBRTC_SUPPORT === false ||
  82       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  83     ) {
  84       this.hasAlreadyAcceptedPrivacyConcern = true
  85     }
  86
  87     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  88       .subscribe(
  89         data => {
  90           this.otherVideos = data.videos
  91           this.updateOtherVideosDisplayed()
  92         },
  93
  94         err => console.error(err)
  95       )
  96
  97     this.paramsSub = this.route.params.subscribe(routeParams => {
  98       if (this.player) {
  99         this.player.pause()
 100       }
 101
 102       const uuid = routeParams['uuid']
 103       // Video did not change
 104       if (this.video && this.video.uuid === uuid) return
 105       // Video did change
 106       this.videoService.getVideo(uuid).subscribe(
 107         video => {
 108           const startTime = this.route.snapshot.queryParams.start
 109           this.onVideoFetched(video, startTime)
 110             .catch(err => this.handleError(err))
 111         },
 112
 113         error => {
 114           this.videoNotFound = true
 115           console.error(error)
 116         }
 117       )
 118     })
 119   }
 120
 121   ngOnDestroy () {
 122     this.flushPlayer()
 123
 124     // Unsubscribe subscriptions
 125     this.paramsSub.unsubscribe()
 126   }
 127
 128   setLike () {
 129     if (this.isUserLoggedIn() === false) return
 130     if (this.userRating === 'like') {
 131       // Already liked this video
 132       this.setRating('none')
 133     } else {
 134       this.setRating('like')
 135     }
 136   }
 137
 138   setDislike () {
 139     if (this.isUserLoggedIn() === false) return
 140     if (this.userRating === 'dislike') {
 141       // Already disliked this video
 142       this.setRating('none')
 143     } else {
 144       this.setRating('dislike')
 145     }
 146   }
 147
 148   async blacklistVideo (event: Event) {
 149     event.preventDefault()
 150
 151     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 152     if (res === false) return
 153
 154     this.videoBlacklistService.blacklistVideo(this.video.id)
 155                               .subscribe(
 156                                 status => {
 157                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 158                                   this.redirectService.redirectToHomepage()
 159                                 },
 160
 161                                 error => this.notificationsService.error('Error', error.message)
 162                               )
 163   }
 164
 165   showMoreDescription () {
 166     if (this.completeVideoDescription === undefined) {
 167       return this.loadCompleteDescription()
 168     }
 169
 170     this.updateVideoDescription(this.completeVideoDescription)
 171     this.completeDescriptionShown = true
 172   }
 173
 174   showLessDescription () {
 175     this.updateVideoDescription(this.shortVideoDescription)
 176     this.completeDescriptionShown = false
 177   }
 178
 179   loadCompleteDescription () {
 180     this.descriptionLoading = true
 181
 182     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 183       .subscribe(
 184         description => {
 185           this.completeDescriptionShown = true
 186           this.descriptionLoading = false
 187
 188           this.shortVideoDescription = this.video.description
 189           this.completeVideoDescription = description
 190
 191           this.updateVideoDescription(this.completeVideoDescription)
 192         },
 193
 194         error => {
 195           this.descriptionLoading = false
 196           this.notificationsService.error('Error', error.message)
 197         }
 198       )
 199   }
 200
 201   showReportModal (event: Event) {
 202     event.preventDefault()
 203     this.videoReportModal.show()
 204   }
 205
 206   showSupportModal () {
 207     this.videoSupportModal.show()
 208   }
 209
 210   showShareModal () {
 211     this.videoShareModal.show()
 212   }
 213
 214   showDownloadModal (event: Event) {
 215     event.preventDefault()
 216     this.videoDownloadModal.show()
 217   }
 218
 219   isUserLoggedIn () {
 220     return this.authService.isLoggedIn()
 221   }
 222
 223   isVideoUpdatable () {
 224     return this.video.isUpdatableBy(this.authService.getUser())
 225   }
 226
 227   isVideoBlacklistable () {
 228     return this.video.isBlackistableBy(this.user)
 229   }
 230
 231   getVideoPoster () {
 232     if (!this.video) return ''
 233
 234     return this.video.previewUrl
 235   }
 236
 237   getVideoTags () {
 238     if (!this.video || Array.isArray(this.video.tags) === false) return []
 239
 240     return this.video.tags.join(', ')
 241   }
 242
 243   isVideoRemovable () {
 244     return this.video.isRemovableBy(this.authService.getUser())
 245   }
 246
 247   async removeVideo (event: Event) {
 248     event.preventDefault()
 249
 250     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 251     if (res === false) return
 252
 253     this.videoService.removeVideo(this.video.id)
 254       .subscribe(
 255         status => {
 256           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 257
 258           // Go back to the video-list.
 259           this.redirectService.redirectToHomepage()
 260         },
 261
 262         error => this.notificationsService.error('Error', error.message)
 263       )
 264   }
 265
 266   acceptedPrivacyConcern () {
 267     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 268     this.hasAlreadyAcceptedPrivacyConcern = true
 269   }
 270
 271   private updateVideoDescription (description: string) {
 272     this.video.description = description
 273     this.setVideoDescriptionHTML()
 274   }
 275
 276   private setVideoDescriptionHTML () {
 277     if (!this.video.description) {
 278       this.videoHTMLDescription = ''
 279       return
 280     }
 281
 282     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 283   }
 284
 285   private setVideoLikesBarTooltipText () {
 286     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 287   }
 288
 289   private handleError (err: any) {
 290     const errorMessage: string = typeof err === 'string' ? err : err.message
 291     if (!errorMessage) return
 292
 293     let message = ''
 294
 295     if (errorMessage.indexOf('http error') !== -1) {
 296       message = 'Cannot fetch video from server, maybe down.'
 297     } else {
 298       message = errorMessage
 299     }
 300
 301     this.notificationsService.error('Error', message)
 302   }
 303
 304   private checkUserRating () {
 305     // Unlogged users do not have ratings
 306     if (this.isUserLoggedIn() === false) return
 307
 308     this.videoService.getUserVideoRating(this.video.id)
 309                      .subscribe(
 310                        ratingObject => {
 311                          if (ratingObject) {
 312                            this.userRating = ratingObject.rating
 313                          }
 314                        },
 315
 316                        err => this.notificationsService.error('Error', err.message)
 317                       )
 318   }
 319
 320   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 321     this.video = video
 322
 323     // Re init attributes
 324     this.descriptionLoading = false
 325     this.completeDescriptionShown = false
 326
 327     this.updateOtherVideosDisplayed()
 328
 329     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 330       const res = await this.confirmService.confirm(
 331         'This video contains mature or explicit content. Are you sure you want to watch it?',
 332         'Mature or explicit content'
 333       )
 334       if (res === false) return this.redirectService.redirectToHomepage()
 335     }
 336
 337     // Flush old player if needed
 338     this.flushPlayer()
 339
 340     // Build video element, because videojs remove it on dispose
 341     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 342     this.playerElement = document.createElement('video')
 343     this.playerElement.className = 'video-js vjs-peertube-skin'
 344     playerElementWrapper.appendChild(this.playerElement)
 345
 346     const videojsOptions = getVideojsOptions({
 347       autoplay: this.isAutoplay(),
 348       inactivityTimeout: 2500,
 349       videoFiles: this.video.files,
 350       playerElement: this.playerElement,
 351       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 352       videoDuration: this.video.duration,
 353       enableHotkeys: true,
 354       peertubeLink: false,
 355       poster: this.video.previewUrl,
 356       startTime
 357     })
 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) => self.handleError(data.err))
 364       })
 365     })
 366
 367     this.setVideoDescriptionHTML()
 368     this.setVideoLikesBarTooltipText()
 369
 370     this.setOpenGraphTags()
 371     this.checkUserRating()
 372   }
 373
 374   private setRating (nextRating) {
 375     let method
 376     switch (nextRating) {
 377       case 'like':
 378         method = this.videoService.setVideoLike
 379         break
 380       case 'dislike':
 381         method = this.videoService.setVideoDislike
 382         break
 383       case 'none':
 384         method = this.videoService.unsetVideoLike
 385         break
 386     }
 387
 388     method.call(this.videoService, this.video.id)
 389      .subscribe(
 390       () => {
 391         // Update the video like attribute
 392         this.updateVideoRating(this.userRating, nextRating)
 393         this.userRating = nextRating
 394       },
 395       err => this.notificationsService.error('Error', err.message)
 396      )
 397   }
 398
 399   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 400     let likesToIncrement = 0
 401     let dislikesToIncrement = 0
 402
 403     if (oldRating) {
 404       if (oldRating === 'like') likesToIncrement--
 405       if (oldRating === 'dislike') dislikesToIncrement--
 406     }
 407
 408     if (newRating === 'like') likesToIncrement++
 409     if (newRating === 'dislike') dislikesToIncrement++
 410
 411     this.video.likes += likesToIncrement
 412     this.video.dislikes += dislikesToIncrement
 413
 414     this.video.buildLikeAndDislikePercents()
 415     this.setVideoLikesBarTooltipText()
 416   }
 417
 418   private updateOtherVideosDisplayed () {
 419     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 420       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 421     }
 422   }
 423
 424   private setOpenGraphTags () {
 425     this.metaService.setTitle(this.video.name)
 426
 427     this.metaService.setTag('og:type', 'video')
 428
 429     this.metaService.setTag('og:title', this.video.name)
 430     this.metaService.setTag('name', this.video.name)
 431
 432     this.metaService.setTag('og:description', this.video.description)
 433     this.metaService.setTag('description', this.video.description)
 434
 435     this.metaService.setTag('og:image', this.video.previewPath)
 436
 437     this.metaService.setTag('og:duration', this.video.duration.toString())
 438
 439     this.metaService.setTag('og:site_name', 'PeerTube')
 440
 441     this.metaService.setTag('og:url', window.location.href)
 442     this.metaService.setTag('url', window.location.href)
 443   }
 444
 445   private isAutoplay () {
 446     // True by default
 447     if (!this.user) return true
 448
 449     // Be sure the autoPlay is set to false
 450     return this.user.autoPlayVideo !== false
 451   }
 452
 453   private flushPlayer () {
 454     // Remove player if it exists
 455     if (this.player) {
 456       this.player.dispose()
 457       this.player = undefined
 458     }
 459   }
 460 }