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