client/src/app/videos/+video-watch/video-watch.component.ts

   1 import { catchError } from 'rxjs/operators'
   2 import { Component, ElementRef, Inject, LOCALE_ID, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core'
   3 import { ActivatedRoute, Router } from '@angular/router'
   4 import { RedirectService } from '@app/core/routing/redirect.service'
   5 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   6 import { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   7 import { MetaService } from '@ngx-meta/core'
   8 import { NotificationsService } from 'angular2-notifications'
   9 import { Subscription } from 'rxjs'
  10 import * as videojs from 'video.js'
  11 import 'videojs-hotkeys'
  12 import * as WebTorrent from 'webtorrent'
  13 import { UserVideoRateType, VideoRateType, VideoState } from '../../../../../shared'
  14 import '../../../assets/player/peertube-videojs-plugin'
  15 import { AuthService, ConfirmService } from '../../core'
  16 import { RestExtractor, VideoBlacklistService } from '../../shared'
  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 { addContextMenu, getVideojsOptions, loadLocale } from '../../../assets/player/peertube-player'
  25 import { ServerService } from '@app/core'
  26 import { I18n } from '@ngx-translate/i18n-polyfill'
  27 import { environment } from '../../../environments/environment'
  28 import { getDevLocale, isOnDevLocale } from '@app/shared/i18n/i18n-utils'
  29
  30 @Component({
  31   selector: 'my-video-watch',
  32   templateUrl: './video-watch.component.html',
  33   styleUrls: [ './video-watch.component.scss' ]
  34 })
  35 export class VideoWatchComponent implements OnInit, OnDestroy {
  36   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  37
  38   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  39   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  40   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  41   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  42
  43   otherVideosDisplayed: Video[] = []
  44
  45   player: videojs.Player
  46   playerElement: HTMLVideoElement
  47   userRating: UserVideoRateType = null
  48   video: VideoDetails = null
  49   descriptionLoading = false
  50
  51   completeDescriptionShown = false
  52   completeVideoDescription: string
  53   shortVideoDescription: string
  54   videoHTMLDescription = ''
  55   likesBarTooltipText = ''
  56   hasAlreadyAcceptedPrivacyConcern = false
  57
  58   private videojsLocaleLoaded = false
  59   private otherVideos: Video[] = []
  60   private paramsSub: Subscription
  61
  62   constructor (
  63     private elementRef: ElementRef,
  64     private route: ActivatedRoute,
  65     private router: Router,
  66     private videoService: VideoService,
  67     private videoBlacklistService: VideoBlacklistService,
  68     private confirmService: ConfirmService,
  69     private metaService: MetaService,
  70     private authService: AuthService,
  71     private serverService: ServerService,
  72     private restExtractor: RestExtractor,
  73     private notificationsService: NotificationsService,
  74     private markdownService: MarkdownService,
  75     private zone: NgZone,
  76     private redirectService: RedirectService,
  77     private i18n: I18n,
  78     @Inject(LOCALE_ID) private localeId: string
  79   ) {}
  80
  81   get user () {
  82     return this.authService.getUser()
  83   }
  84
  85   ngOnInit () {
  86     if (
  87       WebTorrent.WEBRTC_SUPPORT === false ||
  88       peertubeLocalStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
  89     ) {
  90       this.hasAlreadyAcceptedPrivacyConcern = true
  91     }
  92
  93     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  94         .subscribe(
  95           data => {
  96             this.otherVideos = data.videos
  97             this.updateOtherVideosDisplayed()
  98           },
  99
 100           err => console.error(err)
 101         )
 102
 103     this.paramsSub = this.route.params.subscribe(routeParams => {
 104       if (this.player) {
 105         this.player.pause()
 106       }
 107
 108       const uuid = routeParams[ 'uuid' ]
 109
 110       // Video did not change
 111       if (this.video && this.video.uuid === uuid) return
 112       // Video did change
 113       this.videoService
 114           .getVideo(uuid)
 115           .pipe(catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 404 ])))
 116           .subscribe(video => {
 117             const startTime = this.route.snapshot.queryParams.start
 118             this.onVideoFetched(video, startTime)
 119                 .catch(err => this.handleError(err))
 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(this.i18n('Do you really want to blacklist this video?'), this.i18n('Blacklist'))
 155     if (res === false) return
 156
 157     this.videoBlacklistService.blacklistVideo(this.video.id)
 158         .subscribe(
 159           () => {
 160             this.notificationsService.success(
 161               this.i18n('Success'),
 162               this.i18n('Video {{videoName}} had been blacklisted.', { videoName: this.video.name })
 163             )
 164             this.redirectService.redirectToHomepage()
 165           },
 166
 167           error => this.notificationsService.error(this.i18n('Error'), error.message)
 168         )
 169   }
 170
 171   showMoreDescription () {
 172     if (this.completeVideoDescription === undefined) {
 173       return this.loadCompleteDescription()
 174     }
 175
 176     this.updateVideoDescription(this.completeVideoDescription)
 177     this.completeDescriptionShown = true
 178   }
 179
 180   showLessDescription () {
 181     this.updateVideoDescription(this.shortVideoDescription)
 182     this.completeDescriptionShown = false
 183   }
 184
 185   loadCompleteDescription () {
 186     this.descriptionLoading = true
 187
 188     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 189         .subscribe(
 190           description => {
 191             this.completeDescriptionShown = true
 192             this.descriptionLoading = false
 193
 194             this.shortVideoDescription = this.video.description
 195             this.completeVideoDescription = description
 196
 197             this.updateVideoDescription(this.completeVideoDescription)
 198           },
 199
 200           error => {
 201             this.descriptionLoading = false
 202             this.notificationsService.error(this.i18n('Error'), error.message)
 203           }
 204         )
 205   }
 206
 207   showReportModal (event: Event) {
 208     event.preventDefault()
 209     this.videoReportModal.show()
 210   }
 211
 212   showSupportModal () {
 213     this.videoSupportModal.show()
 214   }
 215
 216   showShareModal () {
 217     this.videoShareModal.show()
 218   }
 219
 220   showDownloadModal (event: Event) {
 221     event.preventDefault()
 222     this.videoDownloadModal.show()
 223   }
 224
 225   isUserLoggedIn () {
 226     return this.authService.isLoggedIn()
 227   }
 228
 229   isVideoUpdatable () {
 230     return this.video.isUpdatableBy(this.authService.getUser())
 231   }
 232
 233   isVideoBlacklistable () {
 234     return this.video.isBlackistableBy(this.user)
 235   }
 236
 237   getVideoPoster () {
 238     if (!this.video) return ''
 239
 240     return this.video.previewUrl
 241   }
 242
 243   getVideoTags () {
 244     if (!this.video || Array.isArray(this.video.tags) === false) return []
 245
 246     return this.video.tags.join(', ')
 247   }
 248
 249   isVideoRemovable () {
 250     return this.video.isRemovableBy(this.authService.getUser())
 251   }
 252
 253   async removeVideo (event: Event) {
 254     event.preventDefault()
 255
 256     const res = await this.confirmService.confirm(this.i18n('Do you really want to delete this video?'), this.i18n('Delete'))
 257     if (res === false) return
 258
 259     this.videoService.removeVideo(this.video.id)
 260         .subscribe(
 261           status => {
 262             this.notificationsService.success(
 263               this.i18n('Success'),
 264               this.i18n('Video {{videoName}} deleted.', { videoName: this.video.name })
 265             )
 266
 267             // Go back to the video-list.
 268             this.redirectService.redirectToHomepage()
 269           },
 270
 271           error => this.notificationsService.error(this.i18n('Error'), error.message)
 272         )
 273   }
 274
 275   acceptedPrivacyConcern () {
 276     peertubeLocalStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 277     this.hasAlreadyAcceptedPrivacyConcern = true
 278   }
 279
 280   isVideoToTranscode () {
 281     return this.video && this.video.state.id === VideoState.TO_TRANSCODE
 282   }
 283
 284   private updateVideoDescription (description: string) {
 285     this.video.description = description
 286     this.setVideoDescriptionHTML()
 287   }
 288
 289   private setVideoDescriptionHTML () {
 290     if (!this.video.description) {
 291       this.videoHTMLDescription = ''
 292       return
 293     }
 294
 295     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 296   }
 297
 298   private setVideoLikesBarTooltipText () {
 299     this.likesBarTooltipText = this.i18n('{{likesNumber}} likes / {{dislikesNumber}} dislikes', {
 300       likesNumber: this.video.likes,
 301       dislikesNumber: this.video.dislikes
 302     })
 303   }
 304
 305   private handleError (err: any) {
 306     const errorMessage: string = typeof err === 'string' ? err : err.message
 307     if (!errorMessage) return
 308
 309     let message = ''
 310
 311     if (errorMessage.indexOf('http error') !== -1) {
 312       message = this.i18n('Cannot fetch video from server, maybe down.')
 313     } else {
 314       message = errorMessage
 315     }
 316
 317     this.notificationsService.error(this.i18n('Error'), message)
 318   }
 319
 320   private checkUserRating () {
 321     // Unlogged users do not have ratings
 322     if (this.isUserLoggedIn() === false) return
 323
 324     this.videoService.getUserVideoRating(this.video.id)
 325         .subscribe(
 326           ratingObject => {
 327             if (ratingObject) {
 328               this.userRating = ratingObject.rating
 329             }
 330           },
 331
 332           err => this.notificationsService.error(this.i18n('Error'), err.message)
 333         )
 334   }
 335
 336   private async onVideoFetched (video: VideoDetails, startTime = 0) {
 337     this.video = video
 338
 339     // Re init attributes
 340     this.descriptionLoading = false
 341     this.completeDescriptionShown = false
 342
 343     this.updateOtherVideosDisplayed()
 344
 345     if (this.video.isVideoNSFWForUser(this.user, this.serverService.getConfig())) {
 346       const res = await this.confirmService.confirm(
 347         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
 348         this.i18n('Mature or explicit content')
 349       )
 350       if (res === false) return this.redirectService.redirectToHomepage()
 351     }
 352
 353     // Flush old player if needed
 354     this.flushPlayer()
 355
 356     // Build video element, because videojs remove it on dispose
 357     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#video-element-wrapper')
 358     this.playerElement = document.createElement('video')
 359     this.playerElement.className = 'video-js vjs-peertube-skin'
 360     this.playerElement.setAttribute('playsinline', 'true')
 361     playerElementWrapper.appendChild(this.playerElement)
 362
 363     const videojsOptions = getVideojsOptions({
 364       autoplay: this.isAutoplay(),
 365       inactivityTimeout: 2500,
 366       videoFiles: this.video.files,
 367       playerElement: this.playerElement,
 368       videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 369       videoDuration: this.video.duration,
 370       enableHotkeys: true,
 371       peertubeLink: false,
 372       poster: this.video.previewUrl,
 373       startTime,
 374       theaterMode: true
 375     })
 376
 377     if (this.videojsLocaleLoaded === false) {
 378       await loadLocale(environment.apiUrl, videojs, isOnDevLocale() ? getDevLocale() : this.localeId)
 379       this.videojsLocaleLoaded = true
 380     }
 381
 382     const self = this
 383     this.zone.runOutsideAngular(async () => {
 384       videojs(this.playerElement, videojsOptions, function () {
 385         self.player = this
 386         this.on('customError', (event, data) => self.handleError(data.err))
 387
 388         addContextMenu(self.player, self.video.embedUrl)
 389       })
 390     })
 391
 392     this.setVideoDescriptionHTML()
 393     this.setVideoLikesBarTooltipText()
 394
 395     this.setOpenGraphTags()
 396     this.checkUserRating()
 397   }
 398
 399   private setRating (nextRating) {
 400     let method
 401     switch (nextRating) {
 402       case 'like':
 403         method = this.videoService.setVideoLike
 404         break
 405       case 'dislike':
 406         method = this.videoService.setVideoDislike
 407         break
 408       case 'none':
 409         method = this.videoService.unsetVideoLike
 410         break
 411     }
 412
 413     method.call(this.videoService, this.video.id)
 414           .subscribe(
 415             () => {
 416               // Update the video like attribute
 417               this.updateVideoRating(this.userRating, nextRating)
 418               this.userRating = nextRating
 419             },
 420
 421             err => this.notificationsService.error(this.i18n('Error'), err.message)
 422           )
 423   }
 424
 425   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 426     let likesToIncrement = 0
 427     let dislikesToIncrement = 0
 428
 429     if (oldRating) {
 430       if (oldRating === 'like') likesToIncrement--
 431       if (oldRating === 'dislike') dislikesToIncrement--
 432     }
 433
 434     if (newRating === 'like') likesToIncrement++
 435     if (newRating === 'dislike') dislikesToIncrement++
 436
 437     this.video.likes += likesToIncrement
 438     this.video.dislikes += dislikesToIncrement
 439
 440     this.video.buildLikeAndDislikePercents()
 441     this.setVideoLikesBarTooltipText()
 442   }
 443
 444   private updateOtherVideosDisplayed () {
 445     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 446       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 447     }
 448   }
 449
 450   private setOpenGraphTags () {
 451     this.metaService.setTitle(this.video.name)
 452
 453     this.metaService.setTag('og:type', 'video')
 454
 455     this.metaService.setTag('og:title', this.video.name)
 456     this.metaService.setTag('name', this.video.name)
 457
 458     this.metaService.setTag('og:description', this.video.description)
 459     this.metaService.setTag('description', this.video.description)
 460
 461     this.metaService.setTag('og:image', this.video.previewPath)
 462
 463     this.metaService.setTag('og:duration', this.video.duration.toString())
 464
 465     this.metaService.setTag('og:site_name', 'PeerTube')
 466
 467     this.metaService.setTag('og:url', window.location.href)
 468     this.metaService.setTag('url', window.location.href)
 469   }
 470
 471   private isAutoplay () {
 472     // True by default
 473     if (!this.user) return true
 474
 475     // Be sure the autoPlay is set to false
 476     return this.user.autoPlayVideo !== false
 477   }
 478
 479   private flushPlayer () {
 480     // Remove player if it exists
 481     if (this.player) {
 482       this.player.dispose()
 483       this.player = undefined
 484     }
 485   }
 486 }