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 { VideoSupportComponent } from '@app/videos/+video-watch/modal/video-support.component'
   5 import { MetaService } from '@ngx-meta/core'
   6 import { NotificationsService } from 'angular2-notifications'
   7 import { Subscription } from 'rxjs/Subscription'
   8 import * as videojs from 'video.js'
   9 import 'videojs-hotkeys'
  10 import { UserVideoRateType, VideoRateType } from '../../../../../shared'
  11 import '../../../assets/player/peertube-videojs-plugin'
  12 import { AuthService, ConfirmService } from '../../core'
  13 import { VideoBlacklistService } from '../../shared'
  14 import { Account } from '../../shared/account/account.model'
  15 import { VideoDetails } from '../../shared/video/video-details.model'
  16 import { Video } from '../../shared/video/video.model'
  17 import { VideoService } from '../../shared/video/video.service'
  18 import { MarkdownService } from '../shared'
  19 import { VideoDownloadComponent } from './modal/video-download.component'
  20 import { VideoReportComponent } from './modal/video-report.component'
  21 import { VideoShareComponent } from './modal/video-share.component'
  22
  23 @Component({
  24   selector: 'my-video-watch',
  25   templateUrl: './video-watch.component.html',
  26   styleUrls: [ './video-watch.component.scss' ]
  27 })
  28 export class VideoWatchComponent implements OnInit, OnDestroy {
  29   private static LOCAL_STORAGE_PRIVACY_CONCERN_KEY = 'video-watch-privacy-concern'
  30
  31   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  32   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  33   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  34   @ViewChild('videoSupportModal') videoSupportModal: VideoSupportComponent
  35
  36   otherVideosDisplayed: Video[] = []
  37
  38   error = false
  39   player: videojs.Player
  40   playerElement: HTMLVideoElement
  41   userRating: UserVideoRateType = null
  42   video: VideoDetails = null
  43   videoPlayerLoaded = false
  44   videoNotFound = false
  45   descriptionLoading = false
  46
  47   completeDescriptionShown = false
  48   completeVideoDescription: string
  49   shortVideoDescription: string
  50   videoHTMLDescription = ''
  51   likesBarTooltipText = ''
  52
  53   private otherVideos: Video[] = []
  54   private paramsSub: Subscription
  55
  56   constructor (
  57     private elementRef: ElementRef,
  58     private route: ActivatedRoute,
  59     private router: Router,
  60     private videoService: VideoService,
  61     private videoBlacklistService: VideoBlacklistService,
  62     private confirmService: ConfirmService,
  63     private metaService: MetaService,
  64     private authService: AuthService,
  65     private notificationsService: NotificationsService,
  66     private markdownService: MarkdownService,
  67     private zone: NgZone,
  68     private redirectService: RedirectService
  69   ) {}
  70
  71   get user () {
  72     return this.authService.getUser()
  73   }
  74
  75   ngOnInit () {
  76     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  77       .subscribe(
  78         data => {
  79           this.otherVideos = data.videos
  80           this.updateOtherVideosDisplayed()
  81         },
  82
  83         err => console.error(err)
  84       )
  85
  86     this.paramsSub = this.route.params.subscribe(routeParams => {
  87       if (this.videoPlayerLoaded) {
  88         this.player.pause()
  89       }
  90
  91       const uuid = routeParams['uuid']
  92       // Video did not changed
  93       if (this.video && this.video.uuid === uuid) return
  94
  95       this.videoService.getVideo(uuid).subscribe(
  96         video => this.onVideoFetched(video),
  97
  98         error => {
  99           this.videoNotFound = true
 100           console.error(error)
 101         }
 102       )
 103     })
 104   }
 105
 106   ngOnDestroy () {
 107     // Remove player if it exists
 108     if (this.videoPlayerLoaded === true) {
 109       videojs(this.playerElement).dispose()
 110     }
 111
 112     // Unsubscribe subscriptions
 113     this.paramsSub.unsubscribe()
 114   }
 115
 116   setLike () {
 117     if (this.isUserLoggedIn() === false) return
 118     if (this.userRating === 'like') {
 119       // Already liked this video
 120       this.setRating('none')
 121     } else {
 122       this.setRating('like')
 123     }
 124   }
 125
 126   setDislike () {
 127     if (this.isUserLoggedIn() === false) return
 128     if (this.userRating === 'dislike') {
 129       // Already disliked this video
 130       this.setRating('none')
 131     } else {
 132       this.setRating('dislike')
 133     }
 134   }
 135
 136   async blacklistVideo (event: Event) {
 137     event.preventDefault()
 138
 139     const res = await this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist')
 140     if (res === false) return
 141
 142     this.videoBlacklistService.blacklistVideo(this.video.id)
 143                               .subscribe(
 144                                 status => {
 145                                   this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 146                                   this.redirectService.redirectToHomepage()
 147                                 },
 148
 149                                 error => this.notificationsService.error('Error', error.message)
 150                               )
 151   }
 152
 153   showMoreDescription () {
 154     if (this.completeVideoDescription === undefined) {
 155       return this.loadCompleteDescription()
 156     }
 157
 158     this.updateVideoDescription(this.completeVideoDescription)
 159     this.completeDescriptionShown = true
 160   }
 161
 162   showLessDescription () {
 163     this.updateVideoDescription(this.shortVideoDescription)
 164     this.completeDescriptionShown = false
 165   }
 166
 167   loadCompleteDescription () {
 168     this.descriptionLoading = true
 169
 170     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 171       .subscribe(
 172         description => {
 173           this.completeDescriptionShown = true
 174           this.descriptionLoading = false
 175
 176           this.shortVideoDescription = this.video.description
 177           this.completeVideoDescription = description
 178
 179           this.updateVideoDescription(this.completeVideoDescription)
 180         },
 181
 182         error => {
 183           this.descriptionLoading = false
 184           this.notificationsService.error('Error', error.message)
 185         }
 186       )
 187   }
 188
 189   showReportModal (event: Event) {
 190     event.preventDefault()
 191     this.videoReportModal.show()
 192   }
 193
 194   showSupportModal () {
 195     this.videoSupportModal.show()
 196   }
 197
 198   showShareModal () {
 199     this.videoShareModal.show()
 200   }
 201
 202   showDownloadModal (event: Event) {
 203     event.preventDefault()
 204     this.videoDownloadModal.show()
 205   }
 206
 207   isUserLoggedIn () {
 208     return this.authService.isLoggedIn()
 209   }
 210
 211   isVideoUpdatable () {
 212     return this.video.isUpdatableBy(this.authService.getUser())
 213   }
 214
 215   isVideoBlacklistable () {
 216     return this.video.isBlackistableBy(this.user)
 217   }
 218
 219   getAvatarPath () {
 220     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 221   }
 222
 223   getVideoPoster () {
 224     if (!this.video) return ''
 225
 226     return this.video.previewUrl
 227   }
 228
 229   getVideoTags () {
 230     if (!this.video || Array.isArray(this.video.tags) === false) return []
 231
 232     return this.video.tags.join(', ')
 233   }
 234
 235   isVideoRemovable () {
 236     return this.video.isRemovableBy(this.authService.getUser())
 237   }
 238
 239   async removeVideo (event: Event) {
 240     event.preventDefault()
 241
 242     const res = await this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 243     if (res === false) return
 244
 245     this.videoService.removeVideo(this.video.id)
 246       .subscribe(
 247         status => {
 248           this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 249
 250           // Go back to the video-list.
 251           this.redirectService.redirectToHomepage()
 252         },
 253
 254         error => this.notificationsService.error('Error', error.message)
 255       )
 256   }
 257
 258   private updateVideoDescription (description: string) {
 259     this.video.description = description
 260     this.setVideoDescriptionHTML()
 261   }
 262
 263   private setVideoDescriptionHTML () {
 264     if (!this.video.description) {
 265       this.videoHTMLDescription = ''
 266       return
 267     }
 268
 269     this.videoHTMLDescription = this.markdownService.textMarkdownToHTML(this.video.description)
 270   }
 271
 272   private setVideoLikesBarTooltipText () {
 273     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 274   }
 275
 276   private handleError (err: any) {
 277     const errorMessage: string = typeof err === 'string' ? err : err.message
 278     if (!errorMessage) return
 279
 280     let message = ''
 281
 282     if (errorMessage.indexOf('http error') !== -1) {
 283       message = 'Cannot fetch video from server, maybe down.'
 284     } else {
 285       message = errorMessage
 286     }
 287
 288     this.notificationsService.error('Error', message)
 289   }
 290
 291   private checkUserRating () {
 292     // Unlogged users do not have ratings
 293     if (this.isUserLoggedIn() === false) return
 294
 295     this.videoService.getUserVideoRating(this.video.id)
 296                      .subscribe(
 297                        ratingObject => {
 298                          if (ratingObject) {
 299                            this.userRating = ratingObject.rating
 300                          }
 301                        },
 302
 303                        err => this.notificationsService.error('Error', err.message)
 304                       )
 305   }
 306
 307   private async onVideoFetched (video: VideoDetails) {
 308     this.video = video
 309
 310     this.updateOtherVideosDisplayed()
 311
 312     if (this.video.isVideoNSFWForUser(this.user)) {
 313       const res = await this.confirmService.confirm(
 314         'This video contains mature or explicit content. Are you sure you want to watch it?',
 315         'Mature or explicit content'
 316       )
 317       if (res === false) return this.redirectService.redirectToHomepage()
 318     }
 319
 320     if (!this.hasAlreadyAcceptedPrivacyConcern()) {
 321       const res = await this.confirmService.confirm(
 322         'PeerTube uses P2P, other may know you are watching that video through your public IP address. ' +
 323         'Are you okay with that?',
 324         'Privacy concern',
 325         'I accept!'
 326       )
 327       if (res === false) return this.redirectService.redirectToHomepage()
 328     }
 329
 330     this.acceptedPrivacyConcern()
 331
 332     // Player was already loaded
 333     if (this.videoPlayerLoaded !== true) {
 334       this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 335
 336       // If autoplay is true, we don't really need a poster
 337       if (this.isAutoplay() === false) {
 338         this.playerElement.poster = this.video.previewUrl
 339       }
 340
 341       const videojsOptions = {
 342         controls: true,
 343         autoplay: this.isAutoplay(),
 344         playbackRates: [0.5, 1, 1.25, 1.5, 2],
 345         plugins: {
 346           peertube: {
 347             videoFiles: this.video.files,
 348             playerElement: this.playerElement,
 349             peerTubeLink: false,
 350             videoViewUrl: this.videoService.getVideoViewUrl(this.video.uuid),
 351             videoDuration: this.video.duration
 352           },
 353           hotkeys: {
 354             enableVolumeScroll: false
 355           }
 356         }
 357       }
 358
 359       this.videoPlayerLoaded = true
 360
 361       const self = this
 362       this.zone.runOutsideAngular(() => {
 363         videojs(this.playerElement, videojsOptions, function () {
 364           self.player = this
 365           this.on('customError', (event, data) => self.handleError(data.err))
 366         })
 367       })
 368     } else {
 369       const videoViewUrl = this.videoService.getVideoViewUrl(this.video.uuid)
 370       this.player.peertube().setVideoFiles(this.video.files, videoViewUrl, this.video.duration)
 371     }
 372
 373     this.setVideoDescriptionHTML()
 374     this.setVideoLikesBarTooltipText()
 375
 376     this.setOpenGraphTags()
 377     this.checkUserRating()
 378   }
 379
 380   private setRating (nextRating) {
 381     let method
 382     switch (nextRating) {
 383       case 'like':
 384         method = this.videoService.setVideoLike
 385         break
 386       case 'dislike':
 387         method = this.videoService.setVideoDislike
 388         break
 389       case 'none':
 390         method = this.videoService.unsetVideoLike
 391         break
 392     }
 393
 394     method.call(this.videoService, this.video.id)
 395      .subscribe(
 396       () => {
 397         // Update the video like attribute
 398         this.updateVideoRating(this.userRating, nextRating)
 399         this.userRating = nextRating
 400       },
 401       err => this.notificationsService.error('Error', err.message)
 402      )
 403   }
 404
 405   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 406     let likesToIncrement = 0
 407     let dislikesToIncrement = 0
 408
 409     if (oldRating) {
 410       if (oldRating === 'like') likesToIncrement--
 411       if (oldRating === 'dislike') dislikesToIncrement--
 412     }
 413
 414     if (newRating === 'like') likesToIncrement++
 415     if (newRating === 'dislike') dislikesToIncrement++
 416
 417     this.video.likes += likesToIncrement
 418     this.video.dislikes += dislikesToIncrement
 419
 420     this.video.buildLikeAndDislikePercents()
 421     this.setVideoLikesBarTooltipText()
 422   }
 423
 424   private updateOtherVideosDisplayed () {
 425     if (this.video && this.otherVideos && this.otherVideos.length > 0) {
 426       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 427     }
 428   }
 429
 430   private setOpenGraphTags () {
 431     this.metaService.setTitle(this.video.name)
 432
 433     this.metaService.setTag('og:type', 'video')
 434
 435     this.metaService.setTag('og:title', this.video.name)
 436     this.metaService.setTag('name', this.video.name)
 437
 438     this.metaService.setTag('og:description', this.video.description)
 439     this.metaService.setTag('description', this.video.description)
 440
 441     this.metaService.setTag('og:image', this.video.previewPath)
 442
 443     this.metaService.setTag('og:duration', this.video.duration.toString())
 444
 445     this.metaService.setTag('og:site_name', 'PeerTube')
 446
 447     this.metaService.setTag('og:url', window.location.href)
 448     this.metaService.setTag('url', window.location.href)
 449   }
 450
 451   private isAutoplay () {
 452     // True by default
 453     if (!this.user) return true
 454
 455     // Be sure the autoPlay is set to false
 456     return this.user.autoPlayVideo !== false
 457   }
 458
 459   private hasAlreadyAcceptedPrivacyConcern () {
 460     return localStorage.getItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY) === 'true'
 461   }
 462
 463   private acceptedPrivacyConcern () {
 464     localStorage.setItem(VideoWatchComponent.LOCAL_STORAGE_PRIVACY_CONCERN_KEY, 'true')
 465   }
 466 }