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'
   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 { VideoDetails } from '../../shared/video/video-details.model'
  17 import { Video } from '../../shared/video/video.model'
  18 import { VideoService } from '../../shared/video/video.service'
  19 import { MarkdownService } from '../shared'
  20 import { VideoDownloadComponent } from './modal/video-download.component'
  21 import { VideoReportComponent } from './modal/video-report.component'
  22 import { VideoShareComponent } from './modal/video-share.component'
  23 import { getVideojsOptions } from '../../../assets/player/peertube-player'
  24 import { ServerService } from '@app/core'
  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 serverService: ServerService,
  68     private notificationsService: NotificationsService,
  69     private markdownService: MarkdownService,
  70     private zone: NgZone,
  71     private redirectService: RedirectService
  72   ) {}
  73
  74   get user () {
  75     return this.authService.getUser()
  76   }
  77
  78   ngOnInit () {
  79     if (
  80       WebTorrent.WEBRTC_SUPPORT === false ||
  81       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  82     ) {
  83       this.hasAlreadyAcceptedPrivacyConcern = true
  84     }
  85
  86     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  87       .subscribe(
  88         data => {
  89           this.otherVideos = data.videos
  90           this.updateOtherVideosDisplayed()
  91         },
  92
  93         err => console.error(err)
  94       )
  95
  96     this.paramsSub = this.route.params.subscribe(routeParams => {
  97       if (this.player) {
  98         this.player.pause()
  99       }
 100
 101       const uuid = routeParams['uuid']
 102       // Video did not change
 103       if (this.video && this.video.uuid === uuid) return
 104       // Video did change
 105       this.videoService.getVideo(uuid).subscribe(
 106         video => {
 107           const startTime = this.route.snapshot.queryParams.start
 108           this.onVideoFetched(video, startTime)
 109             .catch(err => this.handleError(err))
 110         },
 111
 112         error => {
 113           this.videoNotFound = true
 114           console.error(error)
 115         }
 116       )
 117     })
 118   }
 119
 120   ngOnDestroy () {
 121     this.flushPlayer()
 122
 123     // Unsubscribe subscriptions
 124     this.paramsSub.unsubscribe()
 125   }
 126
 127   setLike () {
 128     if (this.isUserLoggedIn() === false) return
 129     if (this.userRating === 'like') {
 130       // Already liked this video
 131       this.setRating('none')
 132     } else {
 133       this.setRating('like')
 134     }
 135   }
 136
 137   setDislike () {
 138     if (this.isUserLoggedIn() === false) return
 139     if (this.userRating === 'dislike') {
 140       // Already disliked this video
 141       this.setRating('none')
 142     } else {
 143       this.setRating('dislike')
 144     }
 145   }
 146
 147   async blacklistVideo (event: Event) {
 148     event.preventDefault()
 149
 150     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 151     if (res === false) return
 152
 153     this.videoBlacklistService.blacklistVideo(this.video.id)
 154                               .subscribe(
 155                                 status => {
 156                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 157                                   this.redirectService.redirectToHomepage()
 158                                 },
 159
 160                                 error => this.notificationsService.error('Error', error.message)
 161                               )
 162   }
 163
 164   showMoreDescription () {
 165     if (this.completeVideoDescription === undefined) {
 166       return this.loadCompleteDescription()
 167     }
 168
 169     this.updateVideoDescription(this.completeVideoDescription)
 170     this.completeDescriptionShown = true
 171   }
 172
 173   showLessDescription () {
 174     this.updateVideoDescription(this.shortVideoDescription)
 175     this.completeDescriptionShown = false
 176   }
 177
 178   loadCompleteDescription () {
 179     this.descriptionLoading = true
 180
 181     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 182       .subscribe(
 183         description => {
 184           this.completeDescriptionShown = true
 185           this.descriptionLoading = false
 186
 187           this.shortVideoDescription = this.video.description
 188           this.completeVideoDescription = description
 189
 190           this.updateVideoDescription(this.completeVideoDescription)
 191         },
 192
 193         error => {
 194           this.descriptionLoading = false
 195           this.notificationsService.error('Error', error.message)
 196         }
 197       )
 198   }
 199
 200   showReportModal (event: Event) {
 201     event.preventDefault()
 202     this.videoReportModal.show()
 203   }
 204
 205   showSupportModal () {
 206     this.videoSupportModal.show()
 207   }
 208
 209   showShareModal () {
 210     this.videoShareModal.show()
 211   }
 212
 213   showDownloadModal (event: Event) {
 214     event.preventDefault()
 215     this.videoDownloadModal.show()
 216   }
 217
 218   isUserLoggedIn () {
 219     return this.authService.isLoggedIn()
 220   }
 221
 222   isVideoUpdatable () {
 223     return this.video.isUpdatableBy(this.authService.getUser())
 224   }
 225
 226   isVideoBlacklistable () {
 227     return this.video.isBlackistableBy(this.user)
 228   }
 229
 230   getVideoPoster () {
 231     if (!this.video) return ''
 232
 233     return this.video.previewUrl
 234   }
 235
 236   getVideoTags () {
 237     if (!this.video || Array.isArray(this.video.tags) === false) return []
 238
 239     return this.video.tags.join(', ')
 240   }
 241
 242   isVideoRemovable () {
 243     return this.video.isRemovableBy(this.authService.getUser())
 244   }
 245
 246   async removeVideo (event: Event) {
 247     event.preventDefault()
 248
 249     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 250     if (res === false) return
 251
 252     this.videoService.removeVideo(this.video.id)
 253       .subscribe(
 254         status => {
 255           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 256
 257           // Go back to the video-list.
 258           this.redirectService.redirectToHomepage()
 259         },
 260
 261         error => this.notificationsService.error('Error', error.message)
 262       )
 263   }
 264
 265   acceptedPrivacyConcern () {
 266     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 267     this.hasAlreadyAcceptedPrivacyConcern = true
 268   }
 269
 270   private updateVideoDescription (description: string) {
 271     this.video.description = description
 272     this.setVideoDescriptionHTML()
 273   }
 274
 275   private setVideoDescriptionHTML () {
 276     if (!this.video.description) {
 277       this.videoHTMLDescription = ''
 278       return
 279     }
 280
 281     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 282   }
 283
 284   private setVideoLikesBarTooltipText () {
 285     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 286   }
 287
 288   private handleError (err: any) {
 289     const errorMessage: string = typeof err === 'string' ? err : err.message
 290     if (!errorMessage) return
 291
 292     let message = ''
 293
 294     if (errorMessage.indexOf('http error') !== -1) {
 295       message = 'Cannot fetch video from server, maybe down.'
 296     } else {
 297       message = errorMessage
 298     }
 299
 300     this.notificationsService.error('Error', message)
 301   }
 302
 303   private checkUserRating () {
 304     // Unlogged users do not have ratings
 305     if (this.isUserLoggedIn() === false) return
 306
 307     this.videoService.getUserVideoRating(this.video.id)
 308                      .subscribe(
 309                        ratingObject => {
 310                          if (ratingObject) {
 311                            this.userRating = ratingObject.rating
 312                          }
 313                        },
 314
 315                        err => this.notificationsService.error('Error', err.message)
 316                       )
 317   }
 318
 319   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 320     this.video = video
 321
 322     // Re init attributes
 323     this.descriptionLoading = false
 324     this.completeDescriptionShown = false
 325
 326     this.updateOtherVideosDisplayed()
 327
 328     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 329       const res = await this.confirmService.confirm(
 330         'This video contains mature or explicit content. Are you sure you want to watch it?',
 331         'Mature or explicit content'
 332       )
 333       if (res === false) return this.redirectService.redirectToHomepage()
 334     }
 335
 336     // Flush old player if needed
 337     this.flushPlayer()
 338
 339     // Build video element, because videojs remove it on dispose
 340     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 341     this.playerElement = document.createElement('video')
 342     this.playerElement.className = 'video-js vjs-peertube-skin'
 343     this.playerElement.setAttribute('playsinline', 'true')
 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       videoEmbedUrl: this.video.embedUrl,
 352       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 353       videoDuration: this.video.duration,
 354       enableHotkeys: true,
 355       peertubeLink: false,
 356       poster: this.video.previewUrl,
 357       startTime
 358     })
 359
 360     const self = this
 361     this.zone.runOutsideAngular(() => {
 362       videojs(this.playerElement, videojsOptions, function () {
 363         self.player = this
 364         this.on('customError', (event, data) => self.handleError(data.err))
 365       })
 366     })
 367
 368     this.setVideoDescriptionHTML()
 369     this.setVideoLikesBarTooltipText()
 370
 371     this.setOpenGraphTags()
 372     this.checkUserRating()
 373   }
 374
 375   private setRating (nextRating) {
 376     let method
 377     switch (nextRating) {
 378       case 'like':
 379         method = this.videoService.setVideoLike
 380         break
 381       case 'dislike':
 382         method = this.videoService.setVideoDislike
 383         break
 384       case 'none':
 385         method = this.videoService.unsetVideoLike
 386         break
 387     }
 388
 389     method.call(this.videoService, this.video.id)
 390      .subscribe(
 391       () => {
 392         // Update the video like attribute
 393         this.updateVideoRating(this.userRating, nextRating)
 394         this.userRating = nextRating
 395       },
 396       err => this.notificationsService.error('Error', err.message)
 397      )
 398   }
 399
 400   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 401     let likesToIncrement = 0
 402     let dislikesToIncrement = 0
 403
 404     if (oldRating) {
 405       if (oldRating === 'like') likesToIncrement--
 406       if (oldRating === 'dislike') dislikesToIncrement--
 407     }
 408
 409     if (newRating === 'like') likesToIncrement++
 410     if (newRating === 'dislike') dislikesToIncrement++
 411
 412     this.video.likes += likesToIncrement
 413     this.video.dislikes += dislikesToIncrement
 414
 415     this.video.buildLikeAndDislikePercents()
 416     this.setVideoLikesBarTooltipText()
 417   }
 418
 419   private updateOtherVideosDisplayed () {
 420     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 421       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 422     }
 423   }
 424
 425   private setOpenGraphTags () {
 426     this.metaService.setTitle(this.video.name)
 427
 428     this.metaService.setTag('og:type', 'video')
 429
 430     this.metaService.setTag('og:title', this.video.name)
 431     this.metaService.setTag('name', this.video.name)
 432
 433     this.metaService.setTag('og:description', this.video.description)
 434     this.metaService.setTag('description', this.video.description)
 435
 436     this.metaService.setTag('og:image', this.video.previewPath)
 437
 438     this.metaService.setTag('og:duration', this.video.duration.toString())
 439
 440     this.metaService.setTag('og:site_name', 'PeerTube')
 441
 442     this.metaService.setTag('og:url', window.location.href)
 443     this.metaService.setTag('url', window.location.href)
 444   }
 445
 446   private isAutoplay () {
 447     // True by default
 448     if (!this.user) return true
 449
 450     // Be sure the autoPlay is set to false
 451     return this.user.autoPlayVideo !== false
 452   }
 453
 454   private flushPlayer () {
 455     // Remove player if it exists
 456     if (this.player) {
 457       this.player.dispose()
 458       this.player = undefined
 459     }
 460   }
 461 }