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