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