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
  26 @Component({
  27   selector: 'my-video-watch',
  28   templateUrl: './video-watch.component.html',
  29   styleUrls: [ './video-watch.component.scss' ]
  30 })
  31 export class VideoWatchComponent implements OnInit, OnDestroy {
  32   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  33
  34   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  35   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  36   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  37   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  38
  39   otherVideosDisplayed: Video[] = []
  40
  41   syndicationItems = {}
  42
  43   player: videojs.Player
  44   playerElement: HTMLVideoElement
  45   userRating: UserVideoRateType = null
  46   video: VideoDetails = null
  47   videoNotFound = false
  48   descriptionLoading = false
  49
  50   completeDescriptionShown = false
  51   completeVideoDescription: string
  52   shortVideoDescription: string
  53   videoHTMLDescription = ''
  54   likesBarTooltipText = ''
  55   hasAlreadyAcceptedPrivacyConcern = false
  56
  57   private otherVideos: Video[] = []
  58   private paramsSub: Subscription
  59
  60   constructor (
  61     private elementRef: ElementRef,
  62     private route: ActivatedRoute,
  63     private router: Router,
  64     private videoService: VideoService,
  65     private videoBlacklistService: VideoBlacklistService,
  66     private confirmService: ConfirmService,
  67     private metaService: MetaService,
  68     private authService: AuthService,
  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           this.generateSyndicationList()
 112         },
 113
 114         error => {
 115           this.videoNotFound = true
 116           console.error(error)
 117         }
 118       )
 119     })
 120   }
 121
 122   ngOnDestroy () {
 123     this.flushPlayer()
 124
 125     // Unsubscribe subscriptions
 126     this.paramsSub.unsubscribe()
 127   }
 128
 129   setLike () {
 130     if (this.isUserLoggedIn() === false) return
 131     if (this.userRating === 'like') {
 132       // Already liked this video
 133       this.setRating('none')
 134     } else {
 135       this.setRating('like')
 136     }
 137   }
 138
 139   setDislike () {
 140     if (this.isUserLoggedIn() === false) return
 141     if (this.userRating === 'dislike') {
 142       // Already disliked this video
 143       this.setRating('none')
 144     } else {
 145       this.setRating('dislike')
 146     }
 147   }
 148
 149   async blacklistVideo (event: Event) {
 150     event.preventDefault()
 151
 152     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 153     if (res === false) return
 154
 155     this.videoBlacklistService.blacklistVideo(this.video.id)
 156                               .subscribe(
 157                                 status => {
 158                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 159                                   this.redirectService.redirectToHomepage()
 160                                 },
 161
 162                                 error => this.notificationsService.error('Error', error.message)
 163                               )
 164   }
 165
 166   showMoreDescription () {
 167     if (this.completeVideoDescription === undefined) {
 168       return this.loadCompleteDescription()
 169     }
 170
 171     this.updateVideoDescription(this.completeVideoDescription)
 172     this.completeDescriptionShown = true
 173   }
 174
 175   showLessDescription () {
 176     this.updateVideoDescription(this.shortVideoDescription)
 177     this.completeDescriptionShown = false
 178   }
 179
 180   loadCompleteDescription () {
 181     this.descriptionLoading = true
 182
 183     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 184       .subscribe(
 185         description => {
 186           this.completeDescriptionShown = true
 187           this.descriptionLoading = false
 188
 189           this.shortVideoDescription = this.video.description
 190           this.completeVideoDescription = description
 191
 192           this.updateVideoDescription(this.completeVideoDescription)
 193         },
 194
 195         error => {
 196           this.descriptionLoading = false
 197           this.notificationsService.error('Error', error.message)
 198         }
 199       )
 200   }
 201
 202   showReportModal (event: Event) {
 203     event.preventDefault()
 204     this.videoReportModal.show()
 205   }
 206
 207   showSupportModal () {
 208     this.videoSupportModal.show()
 209   }
 210
 211   showShareModal () {
 212     this.videoShareModal.show()
 213   }
 214
 215   showDownloadModal (event: Event) {
 216     event.preventDefault()
 217     this.videoDownloadModal.show()
 218   }
 219
 220   isUserLoggedIn () {
 221     return this.authService.isLoggedIn()
 222   }
 223
 224   isVideoUpdatable () {
 225     return this.video.isUpdatableBy(this.authService.getUser())
 226   }
 227
 228   isVideoBlacklistable () {
 229     return this.video.isBlackistableBy(this.user)
 230   }
 231
 232   getAvatarPath () {
 233     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 234   }
 235
 236   getVideoPoster () {
 237     if (!this.video) return ''
 238
 239     return this.video.previewUrl
 240   }
 241
 242   getVideoTags () {
 243     if (!this.video || Array.isArray(this.video.tags) === false) return []
 244
 245     return this.video.tags.join(', ')
 246   }
 247
 248   generateSyndicationList () {
 249     this.syndicationItems = this.videoService.getAccountFeedUrls(this.video.account.id)
 250   }
 251
 252   isVideoRemovable () {
 253     return this.video.isRemovableBy(this.authService.getUser())
 254   }
 255
 256   async removeVideo (event: Event) {
 257     event.preventDefault()
 258
 259     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 260     if (res === false) return
 261
 262     this.videoService.removeVideo(this.video.id)
 263       .subscribe(
 264         status => {
 265           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 266
 267           // Go back to the video-list.
 268           this.redirectService.redirectToHomepage()
 269         },
 270
 271         error => this.notificationsService.error('Error', error.message)
 272       )
 273   }
 274
 275   acceptedPrivacyConcern () {
 276     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 277     this.hasAlreadyAcceptedPrivacyConcern = true
 278   }
 279
 280   private updateVideoDescription (description: string) {
 281     this.video.description = description
 282     this.setVideoDescriptionHTML()
 283   }
 284
 285   private setVideoDescriptionHTML () {
 286     if (!this.video.description) {
 287       this.videoHTMLDescription = ''
 288       return
 289     }
 290
 291     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 292   }
 293
 294   private setVideoLikesBarTooltipText () {
 295     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 296   }
 297
 298   private handleError (err: any) {
 299     const errorMessage: string = typeof err === 'string' ? err : err.message
 300     if (!errorMessage) return
 301
 302     let message = ''
 303
 304     if (errorMessage.indexOf('http error') !== -1) {
 305       message = 'Cannot fetch video from server, maybe down.'
 306     } else {
 307       message = errorMessage
 308     }
 309
 310     this.notificationsService.error('Error', message)
 311   }
 312
 313   private checkUserRating () {
 314     // Unlogged users do not have ratings
 315     if (this.isUserLoggedIn() === false) return
 316
 317     this.videoService.getUserVideoRating(this.video.id)
 318                      .subscribe(
 319                        ratingObject => {
 320                          if (ratingObject) {
 321                            this.userRating = ratingObject.rating
 322                          }
 323                        },
 324
 325                        err => this.notificationsService.error('Error', err.message)
 326                       )
 327   }
 328
 329   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 330     this.video = video
 331
 332     // Re init attributes
 333     this.descriptionLoading = false
 334     this.completeDescriptionShown = false
 335
 336     this.updateOtherVideosDisplayed()
 337
 338     if (this.video.isVideoNSFWForUser(this.user)) {
 339       const res = await this.confirmService.confirm(
 340         'This video contains mature or explicit content. Are you sure you want to watch it?',
 341         'Mature or explicit content'
 342       )
 343       if (res === false) return this.redirectService.redirectToHomepage()
 344     }
 345
 346     // Flush old player if needed
 347     this.flushPlayer()
 348
 349     // Build video element, because videojs remove it on dispose
 350     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 351     this.playerElement = document.createElement('video')
 352     this.playerElement.className = 'video-js vjs-peertube-skin'
 353     playerElementWrapper.appendChild(this.playerElement)
 354
 355     const videojsOptions = getVideojsOptions({
 356       autoplay: this.isAutoplay(),
 357       inactivityTimeout: 2500,
 358       videoFiles: this.video.files,
 359       playerElement: this.playerElement,
 360       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 361       videoDuration: this.video.duration,
 362       enableHotkeys: true,
 363       peertubeLink: false,
 364       poster: this.video.previewUrl,
 365       startTime
 366     })
 367
 368     const self = this
 369     this.zone.runOutsideAngular(() => {
 370       videojs(this.playerElement, videojsOptions, function () {
 371         self.player = this
 372         this.on('customError', (event, data) => self.handleError(data.err))
 373       })
 374     })
 375
 376     this.setVideoDescriptionHTML()
 377     this.setVideoLikesBarTooltipText()
 378
 379     this.setOpenGraphTags()
 380     this.checkUserRating()
 381   }
 382
 383   private setRating (nextRating) {
 384     let method
 385     switch (nextRating) {
 386       case 'like':
 387         method = this.videoService.setVideoLike
 388         break
 389       case 'dislike':
 390         method = this.videoService.setVideoDislike
 391         break
 392       case 'none':
 393         method = this.videoService.unsetVideoLike
 394         break
 395     }
 396
 397     method.call(this.videoService, this.video.id)
 398      .subscribe(
 399       () => {
 400         // Update the video like attribute
 401         this.updateVideoRating(this.userRating, nextRating)
 402         this.userRating = nextRating
 403       },
 404       err => this.notificationsService.error('Error', err.message)
 405      )
 406   }
 407
 408   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 409     let likesToIncrement = 0
 410     let dislikesToIncrement = 0
 411
 412     if (oldRating) {
 413       if (oldRating === 'like') likesToIncrement--
 414       if (oldRating === 'dislike') dislikesToIncrement--
 415     }
 416
 417     if (newRating === 'like') likesToIncrement++
 418     if (newRating === 'dislike') dislikesToIncrement++
 419
 420     this.video.likes += likesToIncrement
 421     this.video.dislikes += dislikesToIncrement
 422
 423     this.video.buildLikeAndDislikePercents()
 424     this.setVideoLikesBarTooltipText()
 425   }
 426
 427   private updateOtherVideosDisplayed () {
 428     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 429       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 430     }
 431   }
 432
 433   private setOpenGraphTags () {
 434     this.metaService.setTitle(this.video.name)
 435
 436     this.metaService.setTag('og:type', 'video')
 437
 438     this.metaService.setTag('og:title', this.video.name)
 439     this.metaService.setTag('name', this.video.name)
 440
 441     this.metaService.setTag('og:description', this.video.description)
 442     this.metaService.setTag('description', this.video.description)
 443
 444     this.metaService.setTag('og:image', this.video.previewPath)
 445
 446     this.metaService.setTag('og:duration', this.video.duration.toString())
 447
 448     this.metaService.setTag('og:site_name', 'PeerTube')
 449
 450     this.metaService.setTag('og:url', window.location.href)
 451     this.metaService.setTag('url', window.location.href)
 452   }
 453
 454   private isAutoplay () {
 455     // True by default
 456     if (!this.user) return true
 457
 458     // Be sure the autoPlay is set to false
 459     return this.user.autoPlayVideo !== false
 460   }
 461
 462   private flushPlayer () {
 463     // Remove player if it exists
 464     if (this.player) {
 465       this.player.dispose()
 466       this.player = undefined
 467     }
 468   }
 469 }