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 '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   loading = false
  36   player: videojs.Player
  37   playerElement: HTMLVideoElement
  38   userRating: UserVideoRateType = null
  39   video: VideoDetails = null
  40   videoPlayerLoaded = false
  41   videoNotFound = false
  42   descriptionLoading = false
  43
  44   completeDescriptionShown = false
  45   completeVideoDescription: string
  46   shortVideoDescription: string
  47   videoHTMLDescription = ''
  48   likesBarTooltipText = ''
  49
  50   private otherVideos: Video[] = []
  51   private paramsSub: Subscription
  52
  53   constructor (
  54     private elementRef: ElementRef,
  55     private route: ActivatedRoute,
  56     private router: Router,
  57     private videoService: VideoService,
  58     private videoBlacklistService: VideoBlacklistService,
  59     private confirmService: ConfirmService,
  60     private metaService: MetaService,
  61     private authService: AuthService,
  62     private notificationsService: NotificationsService,
  63     private markdownService: MarkdownService
  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 => this.otherVideos = data.videos,
  74         err => console.error(err)
  75       )
  76
  77     this.paramsSub = this.route.params.subscribe(routeParams => {
  78       if (this.videoPlayerLoaded) {
  79         this.player.pause()
  80       }
  81
  82       let uuid = routeParams['uuid']
  83       this.videoService.getVideo(uuid).subscribe(
  84         video => this.onVideoFetched(video),
  85
  86         error => {
  87           this.videoNotFound = true
  88           console.error(error)
  89         }
  90       )
  91     })
  92   }
  93
  94   ngOnDestroy () {
  95     // Remove player if it exists
  96     if (this.videoPlayerLoaded === true) {
  97       videojs(this.playerElement).dispose()
  98     }
  99
 100     // Unsubscribe subscriptions
 101     this.paramsSub.unsubscribe()
 102   }
 103
 104   setLike () {
 105     if (this.isUserLoggedIn() === false) return
 106     if (this.userRating === 'like') {
 107       // Already liked this video
 108       this.setRating('none')
 109     } else {
 110       this.setRating('like')
 111     }
 112   }
 113
 114   setDislike () {
 115     if (this.isUserLoggedIn() === false) return
 116     if (this.userRating === 'dislike') {
 117       // Already disliked this video
 118       this.setRating('none')
 119     } else {
 120       this.setRating('dislike')
 121     }
 122   }
 123
 124   blacklistVideo (event: Event) {
 125     event.preventDefault()
 126
 127     this.confirmService.confirm('Do you really want to blacklist this video?', 'Blacklist').subscribe(
 128       res => {
 129         if (res === false) return
 130
 131         this.videoBlacklistService.blacklistVideo(this.video.id)
 132                                   .subscribe(
 133                                     status => {
 134                                       this.notificationsService.success('Success', `Video ${this.video.name} had been blacklisted.`)
 135                                       this.router.navigate(['/videos/list'])
 136                                     },
 137
 138                                     error => this.notificationsService.error('Error', error.message)
 139                                   )
 140       }
 141     )
 142   }
 143
 144   showMoreDescription () {
 145     if (this.completeVideoDescription === undefined) {
 146       return this.loadCompleteDescription()
 147     }
 148
 149     this.updateVideoDescription(this.completeVideoDescription)
 150     this.completeDescriptionShown = true
 151   }
 152
 153   showLessDescription () {
 154     this.updateVideoDescription(this.shortVideoDescription)
 155     this.completeDescriptionShown = false
 156   }
 157
 158   loadCompleteDescription () {
 159     this.descriptionLoading = true
 160
 161     this.videoService.loadCompleteDescription(this.video.descriptionPath)
 162       .subscribe(
 163         description => {
 164           this.completeDescriptionShown = true
 165           this.descriptionLoading = false
 166
 167           this.shortVideoDescription = this.video.description
 168           this.completeVideoDescription = description
 169
 170           this.updateVideoDescription(this.completeVideoDescription)
 171         },
 172
 173         error => {
 174           this.descriptionLoading = false
 175           this.notificationsService.error('Error', error.message)
 176         }
 177       )
 178   }
 179
 180   showReportModal (event: Event) {
 181     event.preventDefault()
 182     this.videoReportModal.show()
 183   }
 184
 185   showShareModal () {
 186     this.videoShareModal.show()
 187   }
 188
 189   showDownloadModal (event: Event) {
 190     event.preventDefault()
 191     this.videoDownloadModal.show()
 192   }
 193
 194   isUserLoggedIn () {
 195     return this.authService.isLoggedIn()
 196   }
 197
 198   isVideoUpdatable () {
 199     return this.video.isUpdatableBy(this.authService.getUser())
 200   }
 201
 202   isVideoBlacklistable () {
 203     return this.video.isBlackistableBy(this.user)
 204   }
 205
 206   getAvatarPath () {
 207     return Account.GET_ACCOUNT_AVATAR_URL(this.video.account)
 208   }
 209
 210   getVideoTags () {
 211     if (!this.video || Array.isArray(this.video.tags) === false) return []
 212
 213     return this.video.tags.join(', ')
 214   }
 215
 216   isVideoRemovable () {
 217     return this.video.isRemovableBy(this.authService.getUser())
 218   }
 219
 220   removeVideo (event: Event) {
 221     event.preventDefault()
 222
 223     this.confirmService.confirm('Do you really want to delete this video?', 'Delete')
 224       .subscribe(
 225         res => {
 226           if (res === false) return
 227
 228           this.videoService.removeVideo(this.video.id)
 229             .subscribe(
 230               status => {
 231                 this.notificationsService.success('Success', `Video ${this.video.name} deleted.`)
 232
 233                 // Go back to the video-list.
 234                 this.router.navigate([ '/videos/list' ])
 235               },
 236
 237               error => this.notificationsService.error('Error', error.message)
 238             )
 239         }
 240       )
 241   }
 242
 243   private updateVideoDescription (description: string) {
 244     this.video.description = description
 245     this.setVideoDescriptionHTML()
 246   }
 247
 248   private setVideoDescriptionHTML () {
 249     if (!this.video.description) {
 250       this.videoHTMLDescription = ''
 251       return
 252     }
 253
 254     this.videoHTMLDescription = this.markdownService.markdownToHTML(this.video.description)
 255   }
 256
 257   private setVideoLikesBarTooltipText () {
 258     this.likesBarTooltipText = `${this.video.likes} likes / ${this.video.dislikes} dislikes`
 259   }
 260
 261   private handleError (err: any) {
 262     const errorMessage: string = typeof err === 'string' ? err : err.message
 263     let message = ''
 264
 265     if (errorMessage.indexOf('http error') !== -1) {
 266       message = 'Cannot fetch video from server, maybe down.'
 267     } else {
 268       message = errorMessage
 269     }
 270
 271     this.notificationsService.error('Error', message)
 272   }
 273
 274   private checkUserRating () {
 275     // Unlogged users do not have ratings
 276     if (this.isUserLoggedIn() === false) return
 277
 278     this.videoService.getUserVideoRating(this.video.id)
 279                      .subscribe(
 280                        ratingObject => {
 281                          if (ratingObject) {
 282                            this.userRating = ratingObject.rating
 283                          }
 284                        },
 285
 286                        err => this.notificationsService.error('Error', err.message)
 287                       )
 288   }
 289
 290   private onVideoFetched (video: VideoDetails) {
 291     this.video = video
 292
 293     if (this.otherVideos.length > 0) {
 294       this.otherVideosDisplayed = this.otherVideos.filter(v => v.uuid !== this.video.uuid)
 295     }
 296
 297     let observable
 298     if (this.video.isVideoNSFWForUser(this.user)) {
 299       observable = this.confirmService.confirm(
 300         'This video contains mature or explicit content. Are you sure you want to watch it?',
 301         'Mature or explicit content'
 302       )
 303     } else {
 304       observable = Observable.of(true)
 305     }
 306
 307     observable.subscribe(
 308       res => {
 309         if (res === false) {
 310
 311           return this.router.navigate([ '/videos/list' ])
 312         }
 313
 314         // Player was already loaded
 315         if (this.videoPlayerLoaded !== true) {
 316           this.playerElement = this.elementRef.nativeElement.querySelector('#video-element')
 317
 318           // If autoplay is true, we don't really need a poster
 319           if (this.isAutoplay() === false) {
 320             this.playerElement.poster = this.video.previewUrl
 321           }
 322
 323           const videojsOptions = {
 324             controls: true,
 325             autoplay: this.isAutoplay(),
 326             plugins: {
 327               peertube: {
 328                 videoFiles: this.video.files,
 329                 playerElement: this.playerElement,
 330                 peerTubeLink: false
 331               },
 332               hotkeys: {}
 333             }
 334           }
 335
 336           this.videoPlayerLoaded = true
 337
 338           const self = this
 339           videojs(this.playerElement, videojsOptions, function () {
 340             self.player = this
 341             this.on('customError', (event, data) => {
 342               self.handleError(data.err)
 343             })
 344           })
 345         } else {
 346           (this.player as any).setVideoFiles(this.video.files)
 347         }
 348
 349         this.setVideoDescriptionHTML()
 350         this.setVideoLikesBarTooltipText()
 351
 352         this.setOpenGraphTags()
 353         this.checkUserRating()
 354
 355         this.prepareViewAdd()
 356       }
 357     )
 358   }
 359
 360   private setRating (nextRating) {
 361     let method
 362     switch (nextRating) {
 363       case 'like':
 364         method = this.videoService.setVideoLike
 365         break
 366       case 'dislike':
 367         method = this.videoService.setVideoDislike
 368         break
 369       case 'none':
 370         method = this.videoService.unsetVideoLike
 371         break
 372     }
 373
 374     method.call(this.videoService, this.video.id)
 375      .subscribe(
 376       () => {
 377         // Update the video like attribute
 378         this.updateVideoRating(this.userRating, nextRating)
 379         this.userRating = nextRating
 380       },
 381       err => this.notificationsService.error('Error', err.message)
 382      )
 383   }
 384
 385   private updateVideoRating (oldRating: UserVideoRateType, newRating: VideoRateType) {
 386     let likesToIncrement = 0
 387     let dislikesToIncrement = 0
 388
 389     if (oldRating) {
 390       if (oldRating === 'like') likesToIncrement--
 391       if (oldRating === 'dislike') dislikesToIncrement--
 392     }
 393
 394     if (newRating === 'like') likesToIncrement++
 395     if (newRating === 'dislike') dislikesToIncrement++
 396
 397     this.video.likes += likesToIncrement
 398     this.video.dislikes += dislikesToIncrement
 399   }
 400
 401   private setOpenGraphTags () {
 402     this.metaService.setTitle(this.video.name)
 403
 404     this.metaService.setTag('og:type', 'video')
 405
 406     this.metaService.setTag('og:title', this.video.name)
 407     this.metaService.setTag('name', this.video.name)
 408
 409     this.metaService.setTag('og:description', this.video.description)
 410     this.metaService.setTag('description', this.video.description)
 411
 412     this.metaService.setTag('og:image', this.video.previewPath)
 413
 414     this.metaService.setTag('og:duration', this.video.duration.toString())
 415
 416     this.metaService.setTag('og:site_name', 'PeerTube')
 417
 418     this.metaService.setTag('og:url', window.location.href)
 419     this.metaService.setTag('url', window.location.href)
 420   }
 421
 422   private prepareViewAdd () {
 423     // After 30 seconds (or 3/4 of the video), increment add a view
 424     let viewTimeoutSeconds = 30
 425     if (this.video.duration < viewTimeoutSeconds) viewTimeoutSeconds = (this.video.duration * 3) / 4
 426
 427     setTimeout(() => {
 428       this.videoService
 429         .viewVideo(this.video.uuid)
 430         .subscribe()
 431
 432     }, viewTimeoutSeconds * 1000)
 433   }
 434
 435   private isAutoplay () {
 436     // True by default
 437     if (!this.user) return true
 438
 439     // Be sure the autoPlay is set to false
 440     return this.user.autoPlayVideo !== false
 441   }
 442 }