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   syndicationItems = {}
  43
  44   player: videojs.Player
  45   playerElement: HTMLVideoElement
  46   userRating: UserVideoRateType = null
  47   video: VideoDetails = null
  48   videoNotFound = false
  49   descriptionLoading = false
  50
  51   completeDescriptionShown = false
  52   completeVideoDescription: string
  53   shortVideoDescription: string
  54   videoHTMLDescription = ''
  55   likesBarTooltipText = ''
  56   hasAlreadyAcceptedPrivacyConcern = false
  57
  58   private otherVideos: Video[] = []
  59   private paramsSub: Subscription
  60
  61   constructor (
  62     private elementRef: ElementRef,
  63     private route: ActivatedRoute,
  64     private router: Router,
  65     private videoService: VideoService,
  66     private videoBlacklistService: VideoBlacklistService,
  67     private confirmService: ConfirmService,
  68     private metaService: MetaService,
  69     private authService: AuthService,
  70     private serverService: ServerService,
  71     private notificationsService: NotificationsService,
  72     private markdownService: MarkdownService,
  73     private zone: NgZone,
  74     private redirectService: RedirectService
  75   ) {}
  76
  77   get user () {
  78     return this.authService.getUser()
  79   }
  80
  81   ngOnInit () {
  82     if (
  83       WebTorrent.WEBRTC_SUPPORT === false ||
  84       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  85     ) {
  86       this.hasAlreadyAcceptedPrivacyConcern = true
  87     }
  88
  89     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  90       .subscribe(
  91         data => {
  92           this.otherVideos = data.videos
  93           this.updateOtherVideosDisplayed()
  94         },
  95
  96         err => console.error(err)
  97       )
  98
  99     this.paramsSub = this.route.params.subscribe(routeParams => {
 100       if (this.player) {
 101         this.player.pause()
 102       }
 103
 104       const uuid = routeParams['uuid']
 105       // Video did not change
 106       if (this.video && this.video.uuid === uuid) return
 107       // Video did change
 108       this.videoService.getVideo(uuid).subscribe(
 109         video => {
 110           const startTime = this.route.snapshot.queryParams.start
 111           this.onVideoFetched(video, startTime)
 112             .catch(err => this.handleError(err))
 113           this.generateSyndicationList()
 114         },
 115
 116         error => {
 117           this.videoNotFound = true
 118           console.error(error)
 119         }
 120       )
 121     })
 122   }
 123
 124   ngOnDestroy () {
 125     this.flushPlayer()
 126
 127     // Unsubscribe subscriptions
 128     this.paramsSub.unsubscribe()
 129   }
 130
 131   setLike () {
 132     if (this.isUserLoggedIn() === false) return
 133     if (this.userRating === 'like') {
 134       // Already liked this video
 135       this.setRating('none')
 136     } else {
 137       this.setRating('like')
 138     }
 139   }
 140
 141   setDislike () {
 142     if (this.isUserLoggedIn() === false) return
 143     if (this.userRating === 'dislike') {
 144       // Already disliked this video
 145       this.setRating('none')
 146     } else {
 147       this.setRating('dislike')
 148     }
 149   }
 150
 151   async blacklistVideo (event: Event) {
 152     event.preventDefault()
 153
 154     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 155     if (res === false) return
 156
 157     this.videoBlacklistService.blacklistVideo(this.video.id)
 158                               .subscribe(
 159                                 status => {
 160                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 161                                   this.redirectService.redirectToHomepage()
 162                                 },
 163
 164                                 error => this.notificationsService.error('Error', error.message)
 165                               )
 166   }
 167
 168   showMoreDescription () {
 169     if (this.completeVideoDescription === undefined) {
 170       return this.loadCompleteDescription()
 171     }
 172
 173     this.updateVideoDescription(this.completeVideoDescription)
 174     this.completeDescriptionShown = true
 175   }
 176
 177   showLessDescription () {
 178     this.updateVideoDescription(this.shortVideoDescription)
 179     this.completeDescriptionShown = false
 180   }
 181
 182   loadCompleteDescription () {
 183     this.descriptionLoading = true
 184
 185     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 186       .subscribe(
 187         description => {
 188           this.completeDescriptionShown = true
 189           this.descriptionLoading = false
 190
 191           this.shortVideoDescription = this.video.description
 192           this.completeVideoDescription = description
 193
 194           this.updateVideoDescription(this.completeVideoDescription)
 195         },
 196
 197         error => {
 198           this.descriptionLoading = false
 199           this.notificationsService.error('Error', error.message)
 200         }
 201       )
 202   }
 203
 204   showReportModal (event: Event) {
 205     event.preventDefault()
 206     this.videoReportModal.show()
 207   }
 208
 209   showSupportModal () {
 210     this.videoSupportModal.show()
 211   }
 212
 213   showShareModal () {
 214     this.videoShareModal.show()
 215   }
 216
 217   showDownloadModal (event: Event) {
 218     event.preventDefault()
 219     this.videoDownloadModal.show()
 220   }
 221
 222   isUserLoggedIn () {
 223     return this.authService.isLoggedIn()
 224   }
 225
 226   isVideoUpdatable () {
 227     return this.video.isUpdatableBy(this.authService.getUser())
 228   }
 229
 230   isVideoBlacklistable () {
 231     return this.video.isBlackistableBy(this.user)
 232   }
 233
 234   getAvatarPath () {
 235     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 236   }
 237
 238   getVideoPoster () {
 239     if (!this.video) return ''
 240
 241     return this.video.previewUrl
 242   }
 243
 244   getVideoTags () {
 245     if (!this.video || Array.isArray(this.video.tags) === false) return []
 246
 247     return this.video.tags.join(', ')
 248   }
 249
 250   generateSyndicationList () {
 251     this.syndicationItems = this.videoService.getAccountFeedUrls(this.video.account.id)
 252   }
 253
 254   isVideoRemovable () {
 255     return this.video.isRemovableBy(this.authService.getUser())
 256   }
 257
 258   async removeVideo (event: Event) {
 259     event.preventDefault()
 260
 261     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 262     if (res === false) return
 263
 264     this.videoService.removeVideo(this.video.id)
 265       .subscribe(
 266         status => {
 267           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 268
 269           // Go back to the video-list.
 270           this.redirectService.redirectToHomepage()
 271         },
 272
 273         error => this.notificationsService.error('Error', error.message)
 274       )
 275   }
 276
 277   acceptedPrivacyConcern () {
 278     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 279     this.hasAlreadyAcceptedPrivacyConcern = true
 280   }
 281
 282   private updateVideoDescription (description: string) {
 283     this.video.description = description
 284     this.setVideoDescriptionHTML()
 285   }
 286
 287   private setVideoDescriptionHTML () {
 288     if (!this.video.description) {
 289       this.videoHTMLDescription = ''
 290       return
 291     }
 292
 293     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 294   }
 295
 296   private setVideoLikesBarTooltipText () {
 297     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 298   }
 299
 300   private handleError (err: any) {
 301     const errorMessage: string = typeof err === 'string' ? err : err.message
 302     if (!errorMessage) return
 303
 304     let message = ''
 305
 306     if (errorMessage.indexOf('http error') !== -1) {
 307       message = 'Cannot fetch video from server, maybe down.'
 308     } else {
 309       message = errorMessage
 310     }
 311
 312     this.notificationsService.error('Error', message)
 313   }
 314
 315   private checkUserRating () {
 316     // Unlogged users do not have ratings
 317     if (this.isUserLoggedIn() === false) return
 318
 319     this.videoService.getUserVideoRating(this.video.id)
 320                      .subscribe(
 321                        ratingObject => {
 322                          if (ratingObject) {
 323                            this.userRating = ratingObject.rating
 324                          }
 325                        },
 326
 327                        err => this.notificationsService.error('Error', err.message)
 328                       )
 329   }
 330
 331   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 332     this.video = video
 333
 334     // Re init attributes
 335     this.descriptionLoading = false
 336     this.completeDescriptionShown = false
 337
 338     this.updateOtherVideosDisplayed()
 339
 340     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 341       const res = await this.confirmService.confirm(
 342         'This video contains mature or explicit content. Are you sure you want to watch it?',
 343         'Mature or explicit content'
 344       )
 345       if (res === false) return this.redirectService.redirectToHomepage()
 346     }
 347
 348     // Flush old player if needed
 349     this.flushPlayer()
 350
 351     // Build video element, because videojs remove it on dispose
 352     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 353     this.playerElement = document.createElement('video')
 354     this.playerElement.className = 'video-js vjs-peertube-skin'
 355     playerElementWrapper.appendChild(this.playerElement)
 356
 357     const videojsOptions = getVideojsOptions({
 358       autoplay: this.isAutoplay(),
 359       inactivityTimeout: 2500,
 360       videoFiles: this.video.files,
 361       playerElement: this.playerElement,
 362       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 363       videoDuration: this.video.duration,
 364       enableHotkeys: true,
 365       peertubeLink: false,
 366       poster: this.video.previewUrl,
 367       startTime
 368     })
 369
 370     const self = this
 371     this.zone.runOutsideAngular(() => {
 372       videojs(this.playerElement, videojsOptions, function () {
 373         self.player = this
 374         this.on('customError', (event, data) => self.handleError(data.err))
 375       })
 376     })
 377
 378     this.setVideoDescriptionHTML()
 379     this.setVideoLikesBarTooltipText()
 380
 381     this.setOpenGraphTags()
 382     this.checkUserRating()
 383   }
 384
 385   private setRating (nextRating) {
 386     let method
 387     switch (nextRating) {
 388       case 'like':
 389         method = this.videoService.setVideoLike
 390         break
 391       case 'dislike':
 392         method = this.videoService.setVideoDislike
 393         break
 394       case 'none':
 395         method = this.videoService.unsetVideoLike
 396         break
 397     }
 398
 399     method.call(this.videoService, this.video.id)
 400      .subscribe(
 401       () => {
 402         // Update the video like attribute
 403         this.updateVideoRating(this.userRating, nextRating)
 404         this.userRating = nextRating
 405       },
 406       err => this.notificationsService.error('Error', err.message)
 407      )
 408   }
 409
 410   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 411     let likesToIncrement = 0
 412     let dislikesToIncrement = 0
 413
 414     if (oldRating) {
 415       if (oldRating === 'like') likesToIncrement--
 416       if (oldRating === 'dislike') dislikesToIncrement--
 417     }
 418
 419     if (newRating === 'like') likesToIncrement++
 420     if (newRating === 'dislike') dislikesToIncrement++
 421
 422     this.video.likes += likesToIncrement
 423     this.video.dislikes += dislikesToIncrement
 424
 425     this.video.buildLikeAndDislikePercents()
 426     this.setVideoLikesBarTooltipText()
 427   }
 428
 429   private updateOtherVideosDisplayed () {
 430     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 431       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 432     }
 433   }
 434
 435   private setOpenGraphTags () {
 436     this.metaService.setTitle(this.video.name)
 437
 438     this.metaService.setTag('og:type', 'video')
 439
 440     this.metaService.setTag('og:title', this.video.name)
 441     this.metaService.setTag('name', this.video.name)
 442
 443     this.metaService.setTag('og:description', this.video.description)
 444     this.metaService.setTag('description', this.video.description)
 445
 446     this.metaService.setTag('og:image', this.video.previewPath)
 447
 448     this.metaService.setTag('og:duration', this.video.duration.toString())
 449
 450     this.metaService.setTag('og:site_name', 'PeerTube')
 451
 452     this.metaService.setTag('og:url', window.location.href)
 453     this.metaService.setTag('url', window.location.href)
 454   }
 455
 456   private isAutoplay () {
 457     // True by default
 458     if (!this.user) return true
 459
 460     // Be sure the autoPlay is set to false
 461     return this.user.autoPlayVideo !== false
 462   }
 463
 464   private flushPlayer () {
 465     // Remove player if it exists
 466     if (this.player) {
 467       this.player.dispose()
 468       this.player = undefined
 469     }
 470   }
 471 }