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   videoPlayerLoaded = false
  47   videoNotFound = false
  48   descriptionLoading = false
  49
  50   completeDescriptionShown = false
  51   completeVideoDescription: string
  52   shortVideoDescription: string
  53   videoHTMLDescription = ''
  54   likesBarTooltipText = ''
  55   hasAlreadyAcceptedPrivacyConcern = false
  56
  57   private otherVideos: Video[] = []
  58   private paramsSub: Subscription
  59
  60   constructor (
  61     private elementRef: ElementRef,
  62     private route: ActivatedRoute,
  63     private router: Router,
  64     private videoService: VideoService,
  65     private videoBlacklistService: VideoBlacklistService,
  66     private confirmService: ConfirmService,
  67     private metaService: MetaService,
  68     private authService: AuthService,
  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.videoPlayerLoaded) {
  99         this.player.pause()
 100       }
 101
 102       const uuid = routeParams['uuid']
 103       // Video did not changed
 104       if (this.video && this.video.uuid === uuid) return
 105
 106       this.videoService.getVideo(uuid).subscribe(
 107         video => this.onVideoFetched(video),
 108
 109         error => {
 110           this.videoNotFound = true
 111           console.error(error)
 112         }
 113       )
 114     })
 115   }
 116
 117   ngOnDestroy () {
 118     // Remove player if it exists
 119     if (this.videoPlayerLoaded === true) {
 120       videojs(this.playerElement).dispose()
 121     }
 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   getAvatarPath () {
 231     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 232   }
 233
 234   getVideoPoster () {
 235     if (!this.video) return ''
 236
 237     return this.video.previewUrl
 238   }
 239
 240   getVideoTags () {
 241     if (!this.video || Array.isArray(this.video.tags) === false) return []
 242
 243     return this.video.tags.join(', ')
 244   }
 245
 246   isVideoRemovable () {
 247     return this.video.isRemovableBy(this.authService.getUser())
 248   }
 249
 250   async removeVideo (event: Event) {
 251     event.preventDefault()
 252
 253     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 254     if (res === false) return
 255
 256     this.videoService.removeVideo(this.video.id)
 257       .subscribe(
 258         status => {
 259           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 260
 261           // Go back to the video-list.
 262           this.redirectService.redirectToHomepage()
 263         },
 264
 265         error => this.notificationsService.error('Error', error.message)
 266       )
 267   }
 268
 269   acceptedPrivacyConcern () {
 270     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 271     this.hasAlreadyAcceptedPrivacyConcern = true
 272   }
 273
 274   private updateVideoDescription (description: string) {
 275     this.video.description = description
 276     this.setVideoDescriptionHTML()
 277   }
 278
 279   private setVideoDescriptionHTML () {
 280     if (!this.video.description) {
 281       this.videoHTMLDescription = ''
 282       return
 283     }
 284
 285     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 286   }
 287
 288   private setVideoLikesBarTooltipText () {
 289     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 290   }
 291
 292   private handleError (err: any) {
 293     const errorMessage: string = typeof err === 'string' ? err : err.message
 294     if (!errorMessage) return
 295
 296     let message = ''
 297
 298     if (errorMessage.indexOf('http error') !== -1) {
 299       message = 'Cannot fetch video from server, maybe down.'
 300     } else {
 301       message = errorMessage
 302     }
 303
 304     this.notificationsService.error('Error', message)
 305   }
 306
 307   private checkUserRating () {
 308     // Unlogged users do not have ratings
 309     if (this.isUserLoggedIn() === false) return
 310
 311     this.videoService.getUserVideoRating(this.video.id)
 312                      .subscribe(
 313                        ratingObject => {
 314                          if (ratingObject) {
 315                            this.userRating = ratingObject.rating
 316                          }
 317                        },
 318
 319                        err => this.notificationsService.error('Error', err.message)
 320                       )
 321   }
 322
 323   private async onVideoFetched (video: VideoDetails) {
 324     this.video = video
 325
 326     this.updateOtherVideosDisplayed()
 327
 328     if (this.video.isVideoNSFWForUser(this.user)) {
 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     // Player was already loaded
 337     if (this.videoPlayerLoaded !== true) {
 338       this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 339
 340       const videojsOptions = getVideojsOptions({
 341         autoplay: this.isAutoplay(),
 342         inactivityTimeout: 4000,
 343         videoFiles: this.video.files,
 344         playerElement: this.playerElement,
 345         videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 346         videoDuration: this.video.duration,
 347         enableHotkeys: true,
 348         peertubeLink: false,
 349         poster: this.video.previewUrl
 350       })
 351
 352       this.videoPlayerLoaded = true
 353
 354       const self = this
 355       this.zone.runOutsideAngular(() => {
 356         videojs(this.playerElement, videojsOptions, function () {
 357           self.player = this
 358           this.on('customError', (event, data) => self.handleError(data.err))
 359         })
 360       })
 361     } else {
 362       const videoViewUrl = this.videoService.getVideoViewUrl(this.video.uuid)
 363       this.player.peertube().setVideoFiles(this.video.files, videoViewUrl, this.video.duration)
 364     }
 365
 366     this.setVideoDescriptionHTML()
 367     this.setVideoLikesBarTooltipText()
 368
 369     this.setOpenGraphTags()
 370     this.checkUserRating()
 371   }
 372
 373   private setRating (nextRating) {
 374     let method
 375     switch (nextRating) {
 376       case 'like':
 377         method = this.videoService.setVideoLike
 378         break
 379       case 'dislike':
 380         method = this.videoService.setVideoDislike
 381         break
 382       case 'none':
 383         method = this.videoService.unsetVideoLike
 384         break
 385     }
 386
 387     method.call(this.videoService, this.video.id)
 388      .subscribe(
 389       () => {
 390         // Update the video like attribute
 391         this.updateVideoRating(this.userRating, nextRating)
 392         this.userRating = nextRating
 393       },
 394       err => this.notificationsService.error('Error', err.message)
 395      )
 396   }
 397
 398   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 399     let likesToIncrement = 0
 400     let dislikesToIncrement = 0
 401
 402     if (oldRating) {
 403       if (oldRating === 'like') likesToIncrement--
 404       if (oldRating === 'dislike') dislikesToIncrement--
 405     }
 406
 407     if (newRating === 'like') likesToIncrement++
 408     if (newRating === 'dislike') dislikesToIncrement++
 409
 410     this.video.likes += likesToIncrement
 411     this.video.dislikes += dislikesToIncrement
 412
 413     this.video.buildLikeAndDislikePercents()
 414     this.setVideoLikesBarTooltipText()
 415   }
 416
 417   private updateOtherVideosDisplayed () {
 418     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 419       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 420     }
 421   }
 422
 423   private setOpenGraphTags () {
 424     this.metaService.setTitle(this.video.name)
 425
 426     this.metaService.setTag('og:type', 'video')
 427
 428     this.metaService.setTag('og:title', this.video.name)
 429     this.metaService.setTag('name', this.video.name)
 430
 431     this.metaService.setTag('og:description', this.video.description)
 432     this.metaService.setTag('description', this.video.description)
 433
 434     this.metaService.setTag('og:image', this.video.previewPath)
 435
 436     this.metaService.setTag('og:duration', this.video.duration.toString())
 437
 438     this.metaService.setTag('og:site_name', 'PeerTube')
 439
 440     this.metaService.setTag('og:url', window.location.href)
 441     this.metaService.setTag('url', window.location.href)
 442   }
 443
 444   private isAutoplay () {
 445     // True by default
 446     if (!this.user) return true
 447
 448     // Be sure the autoPlay is set to false
 449     return this.user.autoPlayVideo !== false
 450   }
 451 }