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   error = false
  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 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 changed
 103       if (this.video && this.video.uuid === uuid) return
 104
 105       this.videoService.getVideo(uuid).subscribe(
 106         video => this.onVideoFetched(video),
 107
 108         error => {
 109           this.videoNotFound = true
 110           console.error(error)
 111         }
 112       )
 113     })
 114   }
 115
 116   ngOnDestroy () {
 117     this.flushPlayer()
 118
 119     // Unsubscribe subscriptions
 120     this.paramsSub.unsubscribe()
 121   }
 122
 123   setLike () {
 124     if (this.isUserLoggedIn() === false) return
 125     if (this.userRating === 'like') {
 126       // Already liked this video
 127       this.setRating('none')
 128     } else {
 129       this.setRating('like')
 130     }
 131   }
 132
 133   setDislike () {
 134     if (this.isUserLoggedIn() === false) return
 135     if (this.userRating === 'dislike') {
 136       // Already disliked this video
 137       this.setRating('none')
 138     } else {
 139       this.setRating('dislike')
 140     }
 141   }
 142
 143   async blacklistVideo (event: Event) {
 144     event.preventDefault()
 145
 146     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 147     if (res === false) return
 148
 149     this.videoBlacklistService.blacklistVideo(this.video.id)
 150                               .subscribe(
 151                                 status => {
 152                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 153                                   this.redirectService.redirectToHomepage()
 154                                 },
 155
 156                                 error => this.notificationsService.error('Error', error.message)
 157                               )
 158   }
 159
 160   showMoreDescription () {
 161     if (this.completeVideoDescription === undefined) {
 162       return this.loadCompleteDescription()
 163     }
 164
 165     this.updateVideoDescription(this.completeVideoDescription)
 166     this.completeDescriptionShown = true
 167   }
 168
 169   showLessDescription () {
 170     this.updateVideoDescription(this.shortVideoDescription)
 171     this.completeDescriptionShown = false
 172   }
 173
 174   loadCompleteDescription () {
 175     this.descriptionLoading = true
 176
 177     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 178       .subscribe(
 179         description => {
 180           this.completeDescriptionShown = true
 181           this.descriptionLoading = false
 182
 183           this.shortVideoDescription = this.video.description
 184           this.completeVideoDescription = description
 185
 186           this.updateVideoDescription(this.completeVideoDescription)
 187         },
 188
 189         error => {
 190           this.descriptionLoading = false
 191           this.notificationsService.error('Error', error.message)
 192         }
 193       )
 194   }
 195
 196   showReportModal (event: Event) {
 197     event.preventDefault()
 198     this.videoReportModal.show()
 199   }
 200
 201   showSupportModal () {
 202     this.videoSupportModal.show()
 203   }
 204
 205   showShareModal () {
 206     this.videoShareModal.show()
 207   }
 208
 209   showDownloadModal (event: Event) {
 210     event.preventDefault()
 211     this.videoDownloadModal.show()
 212   }
 213
 214   isUserLoggedIn () {
 215     return this.authService.isLoggedIn()
 216   }
 217
 218   isVideoUpdatable () {
 219     return this.video.isUpdatableBy(this.authService.getUser())
 220   }
 221
 222   isVideoBlacklistable () {
 223     return this.video.isBlackistableBy(this.user)
 224   }
 225
 226   getAvatarPath () {
 227     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 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) {
 320     this.video = video
 321
 322     this.updateOtherVideosDisplayed()
 323
 324     if (this.video.isVideoNSFWForUser(this.user)) {
 325       const res = await this.confirmService.confirm(
 326         'This video contains mature or explicit content. Are you sure you want to watch it?',
 327         'Mature or explicit content'
 328       )
 329       if (res === false) return this.redirectService.redirectToHomepage()
 330     }
 331
 332     // Flush old player if needed
 333     this.flushPlayer()
 334
 335     // Build video element, because videojs remove it on dispose
 336     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 337     this.playerElement = document.createElement('video')
 338     this.playerElement.className = 'video-js vjs-peertube-skin'
 339     playerElementWrapper.appendChild(this.playerElement)
 340
 341     const videojsOptions = getVideojsOptions({
 342       autoplay: this.isAutoplay(),
 343       inactivityTimeout: 2500,
 344       videoFiles: this.video.files,
 345       playerElement: this.playerElement,
 346       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 347       videoDuration: this.video.duration,
 348       enableHotkeys: true,
 349       peertubeLink: false,
 350       poster: this.video.previewUrl
 351     })
 352
 353     const self = this
 354     this.zone.runOutsideAngular(() => {
 355       videojs(this.playerElement, videojsOptions, function () {
 356         self.player = this
 357         this.on('customError', (event, data) => self.handleError(data.err))
 358       })
 359     })
 360
 361     this.setVideoDescriptionHTML()
 362     this.setVideoLikesBarTooltipText()
 363
 364     this.setOpenGraphTags()
 365     this.checkUserRating()
 366   }
 367
 368   private setRating (nextRating) {
 369     let method
 370     switch (nextRating) {
 371       case 'like':
 372         method = this.videoService.setVideoLike
 373         break
 374       case 'dislike':
 375         method = this.videoService.setVideoDislike
 376         break
 377       case 'none':
 378         method = this.videoService.unsetVideoLike
 379         break
 380     }
 381
 382     method.call(this.videoService, this.video.id)
 383      .subscribe(
 384       () => {
 385         // Update the video like attribute
 386         this.updateVideoRating(this.userRating, nextRating)
 387         this.userRating = nextRating
 388       },
 389       err => this.notificationsService.error('Error', err.message)
 390      )
 391   }
 392
 393   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 394     let likesToIncrement = 0
 395     let dislikesToIncrement = 0
 396
 397     if (oldRating) {
 398       if (oldRating === 'like') likesToIncrement--
 399       if (oldRating === 'dislike') dislikesToIncrement--
 400     }
 401
 402     if (newRating === 'like') likesToIncrement++
 403     if (newRating === 'dislike') dislikesToIncrement++
 404
 405     this.video.likes += likesToIncrement
 406     this.video.dislikes += dislikesToIncrement
 407
 408     this.video.buildLikeAndDislikePercents()
 409     this.setVideoLikesBarTooltipText()
 410   }
 411
 412   private updateOtherVideosDisplayed () {
 413     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 414       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 415     }
 416   }
 417
 418   private setOpenGraphTags () {
 419     this.metaService.setTitle(this.video.name)
 420
 421     this.metaService.setTag('og:type', 'video')
 422
 423     this.metaService.setTag('og:title', this.video.name)
 424     this.metaService.setTag('name', this.video.name)
 425
 426     this.metaService.setTag('og:description', this.video.description)
 427     this.metaService.setTag('description', this.video.description)
 428
 429     this.metaService.setTag('og:image', this.video.previewPath)
 430
 431     this.metaService.setTag('og:duration', this.video.duration.toString())
 432
 433     this.metaService.setTag('og:site_name', 'PeerTube')
 434
 435     this.metaService.setTag('og:url', window.location.href)
 436     this.metaService.setTag('url', window.location.href)
 437   }
 438
 439   private isAutoplay () {
 440     // True by default
 441     if (!this.user) return true
 442
 443     // Be sure the autoPlay is set to false
 444     return this.user.autoPlayVideo !== false
 445   }
 446
 447   private flushPlayer () {
 448     // Remove player if it exists
 449     if (this.player) {
 450       this.player.dispose()
 451       this.player = undefined
 452     }
 453   }
 454 }