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

   1 import { Component, ElementRef, 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 { UserVideoRateType, VideoRateType } from '../../../../../shared'
   9 import '../../../assets/player/peertube-videojs-plugin'
  10 import { AuthService, ConfirmService } from '../../core'
  11 import { VideoBlacklistService } from '../../shared'
  12 import { Account } from '../../shared/account/account.model'
  13 import { VideoDetails } from '../../shared/video/video-details.model'
  14 import { Video } from '../../shared/video/video.model'
  15 import { VideoService } from '../../shared/video/video.service'
  16 import { MarkdownService } from '../shared'
  17 import { VideoDownloadComponent } from './video-download.component'
  18 import { VideoReportComponent } from './video-report.component'
  19 import { VideoShareComponent } from './video-share.component'
  20
  21 @Component({
  22   selector: 'my-video-watch',
  23   templateUrl: './video-watch.component.html',
  24   styleUrls: [ './video-watch.component.scss' ]
  25 })
  26 export class VideoWatchComponent implements OnInit, OnDestroy {
  27   @ViewChild('videoDownloadModal') videoDownloadModal: VideoDownloadComponent
  28   @ViewChild('videoShareModal') videoShareModal: VideoShareComponent
  29   @ViewChild('videoReportModal') videoReportModal: VideoReportComponent
  30
  31   otherVideos: Video[] = []
  32
  33   error = false
  34   loading = 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 paramsSub: Subscription
  50
  51   constructor (
  52     private elementRef: ElementRef,
  53     private route: ActivatedRoute,
  54     private router: Router,
  55     private videoService: VideoService,
  56     private videoBlacklistService: VideoBlacklistService,
  57     private confirmService: ConfirmService,
  58     private metaService: MetaService,
  59     private authService: AuthService,
  60     private notificationsService: NotificationsService,
  61     private markdownService: MarkdownService
  62   ) {}
  63
  64   get user () {
  65     return this.authService.getUser()
  66   }
  67
  68   ngOnInit () {
  69     this.videoService.getVideos({ currentPage: 1, itemsPerPage: 5 }, '-createdAt')
  70       .subscribe(
  71         data => this.otherVideos = data.videos,
  72
  73     err => console.error(err)
  74       )
  75
  76     this.paramsSub = this.route.params.subscribe(routeParams => {
  77       if (this.videoPlayerLoaded) {
  78         this.player.pause()
  79       }
  80
  81       let uuid = routeParams['uuid']
  82       this.videoService.getVideo(uuid).subscribe(
  83         video => this.onVideoFetched(video),
  84
  85         error => {
  86           this.videoNotFound = true
  87           console.error(error)
  88         }
  89       )
  90     })
  91   }
  92
  93   ngOnDestroy () {
  94     // Remove player if it exists
  95     if (this.videoPlayerLoaded === true) {
  96       videojs(this.playerElement).dispose()
  97     }
  98
  99     // Unsubscribe subscriptions
 100     this.paramsSub.unsubscribe()
 101   }
 102
 103   setLike () {
 104     if (this.isUserLoggedIn() === false) return
 105     // Already liked this video
 106     if (this.userRating === 'like') return
 107
 108     this.videoService.setVideoLike(this.video.id)
 109                      .subscribe(
 110                       () => {
 111                         // Update the video like attribute
 112                         this.updateVideoRating(this.userRating, 'like')
 113                         this.userRating = 'like'
 114                       },
 115
 116                       err => this.notificationsService.error('Error', err.message)
 117                      )
 118   }
 119
 120   setDislike () {
 121     if (this.isUserLoggedIn() === false) return
 122     // Already disliked this video
 123     if (this.userRating === 'dislike') return
 124
 125     this.videoService.setVideoDislike(this.video.id)
 126                      .subscribe(
 127                       () => {
 128                         // Update the video dislike attribute
 129                         this.updateVideoRating(this.userRating, 'dislike')
 130                         this.userRating = 'dislike'
 131                       },
 132
 133                       err => this.notificationsService.error('Error', err.message)
 134                      )
 135   }
 136
 137   blacklistVideo (event: Event) {
 138     event.preventDefault()
 139
 140     this.confirmService.confirm('Do you really want to blacklist this video ?', 'Blacklist').subscribe(
 141       res => {
 142         if (res === false) return
 143
 144         this.videoBlacklistService.blacklistVideo(this.video.id)
 145                                   .subscribe(
 146                                     status => {
 147                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 148                                       this.router.navigate(['/videos/list'])
 149                                     },
 150
 151                                     error => this.notificationsService.error('Error', error.text)
 152                                   )
 153       }
 154     )
 155   }
 156
 157   showMoreDescription () {
 158     if (this.completeVideoDescription === undefined) {
 159       return this.loadCompleteDescription()
 160     }
 161
 162     this.updateVideoDescription(this.completeVideoDescription)
 163     this.completeDescriptionShown = true
 164   }
 165
 166   showLessDescription () {
 167     this.updateVideoDescription(this.shortVideoDescription)
 168     this.completeDescriptionShown = false
 169   }
 170
 171   loadCompleteDescription () {
 172     this.descriptionLoading = true
 173
 174     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 175       .subscribe(
 176         description => {
 177           this.completeDescriptionShown = true
 178           this.descriptionLoading = false
 179
 180           this.shortVideoDescription = this.video.description
 181           this.completeVideoDescription = description
 182
 183           this.updateVideoDescription(this.completeVideoDescription)
 184         },
 185
 186         error => {
 187           this.descriptionLoading = false
 188           this.notificationsService.error('Error', error.text)
 189         }
 190       )
 191   }
 192
 193   showReportModal (event: Event) {
 194     event.preventDefault()
 195     this.videoReportModal.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   isVideoBlacklistable () {
 212     return this.video.isBlackistableBy(this.user)
 213   }
 214
 215   getAvatarPath () {
 216     return Account.GET_ACCOUNT_AVATAR_PATH(this.video.account)
 217   }
 218
 219   getVideoTags () {
 220     if (!this.video || Array.isArray(this.video.tags) === false) return []
 221
 222     return this.video.tags.join(', ')
 223   }
 224
 225   isVideoRemovable () {
 226     return this.video.isRemovableBy(this.authService.getUser())
 227   }
 228
 229   removeVideo (event: Event) {
 230     event.preventDefault()
 231
 232     this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 233       .subscribe(
 234         res => {
 235           if (res === false) return
 236
 237           this.videoService.removeVideo(this.video.id)
 238             .subscribe(
 239               status => {
 240                 this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 241
 242                 // Go back to the video-list.
 243                 this.router.navigate([ '/videos/list' ])
 244               },
 245
 246               error => this.notificationsService.error('Error', error.text)
 247             )
 248         }
 249       )
 250   }
 251
 252   private updateVideoDescription (description: string) {
 253     this.video.description = description
 254     this.setVideoDescriptionHTML()
 255   }
 256
 257   private setVideoDescriptionHTML () {
 258     if (!this.video.description) {
 259       this.videoHTMLDescription = ''
 260       return
 261     }
 262
 263     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 264   }
 265
 266   private setVideoLikesBarTooltipText () {
 267     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 268   }
 269
 270   private handleError (err: any) {
 271     const errorMessage: string = typeof err === 'string' ? err : err.message
 272     let message = ''
 273
 274     if (errorMessage.indexOf('http error') !== -1) {
 275       message = 'Cannot fetch video from server, maybe down.'
 276     } else {
 277       message = errorMessage
 278     }
 279
 280     this.notificationsService.error('Error', message)
 281   }
 282
 283   private checkUserRating () {
 284     // Unlogged users do not have ratings
 285     if (this.isUserLoggedIn() === false) return
 286
 287     this.videoService.getUserVideoRating(this.video.id)
 288                      .subscribe(
 289                        ratingObject => {
 290                          if (ratingObject) {
 291                            this.userRating = ratingObject.rating
 292                          }
 293                        },
 294
 295                        err => this.notificationsService.error('Error', err.message)
 296                       )
 297   }
 298
 299   private onVideoFetched (video: VideoDetails) {
 300     this.video = video
 301
 302     let observable
 303     if (this.video.isVideoNSFWForUser(this.user)) {
 304       observable = this.confirmService.confirm(
 305         'This video contains mature or explicit content. Are you sure you want to watch it?',
 306         'Mature or explicit content'
 307       )
 308     } else {
 309       observable = Observable.of(true)
 310     }
 311
 312     observable.subscribe(
 313       res => {
 314         if (res === false) {
 315
 316           return this.router.navigate([ '/videos/list' ])
 317         }
 318
 319         // Player was already loaded
 320         if (this.videoPlayerLoaded !== true) {
 321           this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 322
 323           // If autoplay is true, we don't really need a poster
 324           if (this.isAutoplay() === false) {
 325             this.playerElement.poster = this.video.previewUrl
 326           }
 327
 328           const videojsOptions = {
 329             controls: true,
 330             autoplay: this.isAutoplay(),
 331             plugins: {
 332               peertube: {
 333                 videoFiles: this.video.files,
 334                 playerElement: this.playerElement,
 335                 autoplay: this.isAutoplay(),
 336                 peerTubeLink: false
 337               }
 338             }
 339           }
 340
 341           this.videoPlayerLoaded = true
 342
 343           const self = this
 344           videojs(this.playerElement, videojsOptions, function () {
 345             self.player = this
 346             this.on('customError', (event, data) => {
 347               self.handleError(data.err)
 348             })
 349           })
 350         } else {
 351           (this.player as any).setVideoFiles(this.video.files)
 352         }
 353
 354         this.setVideoDescriptionHTML()
 355         this.setVideoLikesBarTooltipText()
 356
 357         this.setOpenGraphTags()
 358         this.checkUserRating()
 359
 360         this.prepareViewAdd()
 361       }
 362     )
 363   }
 364
 365   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 366     let likesToIncrement = 0
 367     let dislikesToIncrement = 0
 368
 369     if (oldRating) {
 370       if (oldRating === 'like') likesToIncrement--
 371       if (oldRating === 'dislike') dislikesToIncrement--
 372     }
 373
 374     if (newRating === 'like') likesToIncrement++
 375     if (newRating === 'dislike') dislikesToIncrement++
 376
 377     this.video.likes += likesToIncrement
 378     this.video.dislikes += dislikesToIncrement
 379   }
 380
 381   private setOpenGraphTags () {
 382     this.metaService.setTitle(this.video.name)
 383
 384     this.metaService.setTag('og:type', 'video')
 385
 386     this.metaService.setTag('og:title', this.video.name)
 387     this.metaService.setTag('name', this.video.name)
 388
 389     this.metaService.setTag('og:description', this.video.description)
 390     this.metaService.setTag('description', this.video.description)
 391
 392     this.metaService.setTag('og:image', this.video.previewPath)
 393
 394     this.metaService.setTag('og:duration', this.video.duration.toString())
 395
 396     this.metaService.setTag('og:site_name', 'PeerTube')
 397
 398     this.metaService.setTag('og:url', window.location.href)
 399     this.metaService.setTag('url', window.location.href)
 400   }
 401
 402   private prepareViewAdd () {
 403     // After 30 seconds (or 3/4 of the video), increment add a view
 404     let viewTimeoutSeconds = 30
 405     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 406
 407     setTimeout(() => {
 408       this.videoService
 409         .viewVideo(this.video.uuid)
 410         .subscribe()
 411
 412     }, viewTimeoutSeconds * 1000)
 413   }
 414
 415   private isAutoplay () {
 416     // True by default
 417     if (!this.user) return true
 418
 419     // Be sure the autoPlay is set to false
 420     return this.user.autoPlayVideo !== false
 421   }
 422 }