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   getAvatarPath () {
 232     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 233   }
 234
 235   getVideoPoster () {
 236     if (!this.video) return ''
 237
 238     return this.video.previewUrl
 239   }
 240
 241   getVideoTags () {
 242     if (!this.video || Array.isArray(this.video.tags) === false) return []
 243
 244     return this.video.tags.join(', ')
 245   }
 246
 247   isVideoRemovable () {
 248     return this.video.isRemovableBy(this.authService.getUser())
 249   }
 250
 251   async removeVideo (event: Event) {
 252     event.preventDefault()
 253
 254     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 255     if (res === false) return
 256
 257     this.videoService.removeVideo(this.video.id)
 258       .subscribe(
 259         status => {
 260           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 261
 262           // Go back to the video-list.
 263           this.redirectService.redirectToHomepage()
 264         },
 265
 266         error => this.notificationsService.error('Error', error.message)
 267       )
 268   }
 269
 270   acceptedPrivacyConcern () {
 271     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 272     this.hasAlreadyAcceptedPrivacyConcern = true
 273   }
 274
 275   private updateVideoDescription (description: string) {
 276     this.video.description = description
 277     this.setVideoDescriptionHTML()
 278   }
 279
 280   private setVideoDescriptionHTML () {
 281     if (!this.video.description) {
 282       this.videoHTMLDescription = ''
 283       return
 284     }
 285
 286     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 287   }
 288
 289   private setVideoLikesBarTooltipText () {
 290     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 291   }
 292
 293   private handleError (err: any) {
 294     const errorMessage: string = typeof err === 'string' ? err : err.message
 295     if (!errorMessage) return
 296
 297     let message = ''
 298
 299     if (errorMessage.indexOf('http error') !== -1) {
 300       message = 'Cannot fetch video from server, maybe down.'
 301     } else {
 302       message = errorMessage
 303     }
 304
 305     this.notificationsService.error('Error', message)
 306   }
 307
 308   private checkUserRating () {
 309     // Unlogged users do not have ratings
 310     if (this.isUserLoggedIn() === false) return
 311
 312     this.videoService.getUserVideoRating(this.video.id)
 313                      .subscribe(
 314                        ratingObject => {
 315                          if (ratingObject) {
 316                            this.userRating = ratingObject.rating
 317                          }
 318                        },
 319
 320                        err => this.notificationsService.error('Error', err.message)
 321                       )
 322   }
 323
 324   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 325     this.video = video
 326
 327     // Re init attributes
 328     this.descriptionLoading = false
 329     this.completeDescriptionShown = false
 330
 331     this.updateOtherVideosDisplayed()
 332
 333     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 334       const res = await this.confirmService.confirm(
 335         'This video contains mature or explicit content. Are you sure you want to watch it?',
 336         'Mature or explicit content'
 337       )
 338       if (res === false) return this.redirectService.redirectToHomepage()
 339     }
 340
 341     // Flush old player if needed
 342     this.flushPlayer()
 343
 344     // Build video element, because videojs remove it on dispose
 345     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 346     this.playerElement = document.createElement('video')
 347     this.playerElement.className = 'video-js vjs-peertube-skin'
 348     playerElementWrapper.appendChild(this.playerElement)
 349
 350     const videojsOptions = getVideojsOptions({
 351       autoplay: this.isAutoplay(),
 352       inactivityTimeout: 2500,
 353       videoFiles: this.video.files,
 354       playerElement: this.playerElement,
 355       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 356       videoDuration: this.video.duration,
 357       enableHotkeys: true,
 358       peertubeLink: false,
 359       poster: this.video.previewUrl,
 360       startTime
 361     })
 362
 363     const self = this
 364     this.zone.runOutsideAngular(() => {
 365       videojs(this.playerElement, videojsOptions, function () {
 366         self.player = this
 367         this.on('customError', (event, data) => self.handleError(data.err))
 368       })
 369     })
 370
 371     this.setVideoDescriptionHTML()
 372     this.setVideoLikesBarTooltipText()
 373
 374     this.setOpenGraphTags()
 375     this.checkUserRating()
 376   }
 377
 378   private setRating (nextRating) {
 379     let method
 380     switch (nextRating) {
 381       case 'like':
 382         method = this.videoService.setVideoLike
 383         break
 384       case 'dislike':
 385         method = this.videoService.setVideoDislike
 386         break
 387       case 'none':
 388         method = this.videoService.unsetVideoLike
 389         break
 390     }
 391
 392     method.call(this.videoService, this.video.id)
 393      .subscribe(
 394       () => {
 395         // Update the video like attribute
 396         this.updateVideoRating(this.userRating, nextRating)
 397         this.userRating = nextRating
 398       },
 399       err => this.notificationsService.error('Error', err.message)
 400      )
 401   }
 402
 403   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 404     let likesToIncrement = 0
 405     let dislikesToIncrement = 0
 406
 407     if (oldRating) {
 408       if (oldRating === 'like') likesToIncrement--
 409       if (oldRating === 'dislike') dislikesToIncrement--
 410     }
 411
 412     if (newRating === 'like') likesToIncrement++
 413     if (newRating === 'dislike') dislikesToIncrement++
 414
 415     this.video.likes += likesToIncrement
 416     this.video.dislikes += dislikesToIncrement
 417
 418     this.video.buildLikeAndDislikePercents()
 419     this.setVideoLikesBarTooltipText()
 420   }
 421
 422   private updateOtherVideosDisplayed () {
 423     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 424       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 425     }
 426   }
 427
 428   private setOpenGraphTags () {
 429     this.metaService.setTitle(this.video.name)
 430
 431     this.metaService.setTag('og:type', 'video')
 432
 433     this.metaService.setTag('og:title', this.video.name)
 434     this.metaService.setTag('name', this.video.name)
 435
 436     this.metaService.setTag('og:description', this.video.description)
 437     this.metaService.setTag('description', this.video.description)
 438
 439     this.metaService.setTag('og:image', this.video.previewPath)
 440
 441     this.metaService.setTag('og:duration', this.video.duration.toString())
 442
 443     this.metaService.setTag('og:site_name', 'PeerTube')
 444
 445     this.metaService.setTag('og:url', window.location.href)
 446     this.metaService.setTag('url', window.location.href)
 447   }
 448
 449   private isAutoplay () {
 450     // True by default
 451     if (!this.user) return true
 452
 453     // Be sure the autoPlay is set to false
 454     return this.user.autoPlayVideo !== false
 455   }
 456
 457   private flushPlayer () {
 458     // Remove player if it exists
 459     if (this.player) {
 460       this.player.dispose()
 461       this.player = undefined
 462     }
 463   }
 464 }