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   player: videojs.Player
  42   playerElement: HTMLVideoElement
  43   userRating: UserVideoRateType = null
  44   video: VideoDetails = null
  45   videoNotFound = false
  46   descriptionLoading = false
  47
  48   completeDescriptionShown = false
  49   completeVideoDescription: string
  50   shortVideoDescription: string
  51   videoHTMLDescription = ''
  52   likesBarTooltipText = ''
  53   hasAlreadyAcceptedPrivacyConcern = false
  54
  55   private otherVideos: Video[] = []
  56   private paramsSub: Subscription
  57
  58   constructor (
  59     private elementRef: ElementRef,
  60     private route: ActivatedRoute,
  61     private router: Router,
  62     private videoService: VideoService,
  63     private videoBlacklistService: VideoBlacklistService,
  64     private confirmService: ConfirmService,
  65     private metaService: MetaService,
  66     private authService: AuthService,
  67     private notificationsService: NotificationsService,
  68     private markdownService: MarkdownService,
  69     private zone: NgZone,
  70     private redirectService: RedirectService
  71   ) {}
  72
  73   get user () {
  74     return this.authService.getUser()
  75   }
  76
  77   ngOnInit () {
  78     if (
  79       WebTorrent.WEBRTC_SUPPORT === false ||
  80       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  81     ) {
  82       this.hasAlreadyAcceptedPrivacyConcern = true
  83     }
  84
  85     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  86       .subscribe(
  87         data => {
  88           this.otherVideos = data.videos
  89           this.updateOtherVideosDisplayed()
  90         },
  91
  92         err => console.error(err)
  93       )
  94
  95     this.paramsSub = this.route.params.subscribe(routeParams => {
  96       if (this.player) {
  97         this.player.pause()
  98       }
  99
 100       const uuid = routeParams['uuid']
 101       // Video did not changed
 102       if (this.video && this.video.uuid === uuid) return
 103
 104       this.videoService.getVideo(uuid).subscribe(
 105         video => this.onVideoFetched(video),
 106
 107         error => {
 108           this.videoNotFound = true
 109           console.error(error)
 110         }
 111       )
 112     })
 113   }
 114
 115   ngOnDestroy () {
 116     this.flushPlayer()
 117
 118     // Unsubscribe subscriptions
 119     this.paramsSub.unsubscribe()
 120   }
 121
 122   setLike () {
 123     if (this.isUserLoggedIn() === false) return
 124     if (this.userRating === 'like') {
 125       // Already liked this video
 126       this.setRating('none')
 127     } else {
 128       this.setRating('like')
 129     }
 130   }
 131
 132   setDislike () {
 133     if (this.isUserLoggedIn() === false) return
 134     if (this.userRating === 'dislike') {
 135       // Already disliked this video
 136       this.setRating('none')
 137     } else {
 138       this.setRating('dislike')
 139     }
 140   }
 141
 142   async blacklistVideo (event: Event) {
 143     event.preventDefault()
 144
 145     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 146     if (res === false) return
 147
 148     this.videoBlacklistService.blacklistVideo(this.video.id)
 149                               .subscribe(
 150                                 status => {
 151                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 152                                   this.redirectService.redirectToHomepage()
 153                                 },
 154
 155                                 error => this.notificationsService.error('Error', error.message)
 156                               )
 157   }
 158
 159   showMoreDescription () {
 160     if (this.completeVideoDescription === undefined) {
 161       return this.loadCompleteDescription()
 162     }
 163
 164     this.updateVideoDescription(this.completeVideoDescription)
 165     this.completeDescriptionShown = true
 166   }
 167
 168   showLessDescription () {
 169     this.updateVideoDescription(this.shortVideoDescription)
 170     this.completeDescriptionShown = false
 171   }
 172
 173   loadCompleteDescription () {
 174     this.descriptionLoading = true
 175
 176     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 177       .subscribe(
 178         description => {
 179           this.completeDescriptionShown = true
 180           this.descriptionLoading = false
 181
 182           this.shortVideoDescription = this.video.description
 183           this.completeVideoDescription = description
 184
 185           this.updateVideoDescription(this.completeVideoDescription)
 186         },
 187
 188         error => {
 189           this.descriptionLoading = false
 190           this.notificationsService.error('Error', error.message)
 191         }
 192       )
 193   }
 194
 195   showReportModal (event: Event) {
 196     event.preventDefault()
 197     this.videoReportModal.show()
 198   }
 199
 200   showSupportModal () {
 201     this.videoSupportModal.show()
 202   }
 203
 204   showShareModal () {
 205     this.videoShareModal.show()
 206   }
 207
 208   showDownloadModal (event: Event) {
 209     event.preventDefault()
 210     this.videoDownloadModal.show()
 211   }
 212
 213   isUserLoggedIn () {
 214     return this.authService.isLoggedIn()
 215   }
 216
 217   isVideoUpdatable () {
 218     return this.video.isUpdatableBy(this.authService.getUser())
 219   }
 220
 221   isVideoBlacklistable () {
 222     return this.video.isBlackistableBy(this.user)
 223   }
 224
 225   getAvatarPath () {
 226     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 227   }
 228
 229   getVideoPoster () {
 230     if (!this.video) return ''
 231
 232     return this.video.previewUrl
 233   }
 234
 235   getVideoTags () {
 236     if (!this.video || Array.isArray(this.video.tags) === false) return []
 237
 238     return this.video.tags.join(', ')
 239   }
 240
 241   isVideoRemovable () {
 242     return this.video.isRemovableBy(this.authService.getUser())
 243   }
 244
 245   async removeVideo (event: Event) {
 246     event.preventDefault()
 247
 248     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 249     if (res === false) return
 250
 251     this.videoService.removeVideo(this.video.id)
 252       .subscribe(
 253         status => {
 254           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 255
 256           // Go back to the video-list.
 257           this.redirectService.redirectToHomepage()
 258         },
 259
 260         error => this.notificationsService.error('Error', error.message)
 261       )
 262   }
 263
 264   acceptedPrivacyConcern () {
 265     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 266     this.hasAlreadyAcceptedPrivacyConcern = true
 267   }
 268
 269   private updateVideoDescription (description: string) {
 270     this.video.description = description
 271     this.setVideoDescriptionHTML()
 272   }
 273
 274   private setVideoDescriptionHTML () {
 275     if (!this.video.description) {
 276       this.videoHTMLDescription = ''
 277       return
 278     }
 279
 280     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 281   }
 282
 283   private setVideoLikesBarTooltipText () {
 284     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 285   }
 286
 287   private handleError (err: any) {
 288     const errorMessage: string = typeof err === 'string' ? err : err.message
 289     if (!errorMessage) return
 290
 291     let message = ''
 292
 293     if (errorMessage.indexOf('http error') !== -1) {
 294       message = 'Cannot fetch video from server, maybe down.'
 295     } else {
 296       message = errorMessage
 297     }
 298
 299     this.notificationsService.error('Error', message)
 300   }
 301
 302   private checkUserRating () {
 303     // Unlogged users do not have ratings
 304     if (this.isUserLoggedIn() === false) return
 305
 306     this.videoService.getUserVideoRating(this.video.id)
 307                      .subscribe(
 308                        ratingObject => {
 309                          if (ratingObject) {
 310                            this.userRating = ratingObject.rating
 311                          }
 312                        },
 313
 314                        err => this.notificationsService.error('Error', err.message)
 315                       )
 316   }
 317
 318   private async onVideoFetched (video: VideoDetails) {
 319     this.video = video
 320
 321     // Re init attributes
 322     this.descriptionLoading = false
 323     this.completeDescriptionShown = false
 324
 325     this.updateOtherVideosDisplayed()
 326
 327     if (this.video.isVideoNSFWForUser(this.user)) {
 328       const res = await this.confirmService.confirm(
 329         'This video contains mature or explicit content. Are you sure you want to watch it?',
 330         'Mature or explicit content'
 331       )
 332       if (res === false) return this.redirectService.redirectToHomepage()
 333     }
 334
 335     // Flush old player if needed
 336     this.flushPlayer()
 337
 338     // Build video element, because videojs remove it on dispose
 339     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 340     this.playerElement = document.createElement('video')
 341     this.playerElement.className = 'video-js vjs-peertube-skin'
 342     playerElementWrapper.appendChild(this.playerElement)
 343
 344     const videojsOptions = getVideojsOptions({
 345       autoplay: this.isAutoplay(),
 346       inactivityTimeout: 2500,
 347       videoFiles: this.video.files,
 348       playerElement: this.playerElement,
 349       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 350       videoDuration: this.video.duration,
 351       enableHotkeys: true,
 352       peertubeLink: false,
 353       poster: this.video.previewUrl
 354     })
 355
 356     const self = this
 357     this.zone.runOutsideAngular(() => {
 358       videojs(this.playerElement, videojsOptions, function () {
 359         self.player = this
 360         this.on('customError', (event, data) => self.handleError(data.err))
 361       })
 362     })
 363
 364     this.setVideoDescriptionHTML()
 365     this.setVideoLikesBarTooltipText()
 366
 367     this.setOpenGraphTags()
 368     this.checkUserRating()
 369   }
 370
 371   private setRating (nextRating) {
 372     let method
 373     switch (nextRating) {
 374       case 'like':
 375         method = this.videoService.setVideoLike
 376         break
 377       case 'dislike':
 378         method = this.videoService.setVideoDislike
 379         break
 380       case 'none':
 381         method = this.videoService.unsetVideoLike
 382         break
 383     }
 384
 385     method.call(this.videoService, this.video.id)
 386      .subscribe(
 387       () => {
 388         // Update the video like attribute
 389         this.updateVideoRating(this.userRating, nextRating)
 390         this.userRating = nextRating
 391       },
 392       err => this.notificationsService.error('Error', err.message)
 393      )
 394   }
 395
 396   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 397     let likesToIncrement = 0
 398     let dislikesToIncrement = 0
 399
 400     if (oldRating) {
 401       if (oldRating === 'like') likesToIncrement--
 402       if (oldRating === 'dislike') dislikesToIncrement--
 403     }
 404
 405     if (newRating === 'like') likesToIncrement++
 406     if (newRating === 'dislike') dislikesToIncrement++
 407
 408     this.video.likes += likesToIncrement
 409     this.video.dislikes += dislikesToIncrement
 410
 411     this.video.buildLikeAndDislikePercents()
 412     this.setVideoLikesBarTooltipText()
 413   }
 414
 415   private updateOtherVideosDisplayed () {
 416     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 417       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 418     }
 419   }
 420
 421   private setOpenGraphTags () {
 422     this.metaService.setTitle(this.video.name)
 423
 424     this.metaService.setTag('og:type', 'video')
 425
 426     this.metaService.setTag('og:title', this.video.name)
 427     this.metaService.setTag('name', this.video.name)
 428
 429     this.metaService.setTag('og:description', this.video.description)
 430     this.metaService.setTag('description', this.video.description)
 431
 432     this.metaService.setTag('og:image', this.video.previewPath)
 433
 434     this.metaService.setTag('og:duration', this.video.duration.toString())
 435
 436     this.metaService.setTag('og:site_name', 'PeerTube')
 437
 438     this.metaService.setTag('og:url', window.location.href)
 439     this.metaService.setTag('url', window.location.href)
 440   }
 441
 442   private isAutoplay () {
 443     // True by default
 444     if (!this.user) return true
 445
 446     // Be sure the autoPlay is set to false
 447     return this.user.autoPlayVideo !== false
 448   }
 449
 450   private flushPlayer () {
 451     // Remove player if it exists
 452     if (this.player) {
 453       this.player.dispose()
 454       this.player = undefined
 455     }
 456   }
 457 }