client/src/app/+video-channels/video-channels.component.ts

   1 import { Component, OnDestroy, OnInit, ViewChild } from '@angular/core'
   2 import { ActivatedRoute } from '@angular/router'
   3 import { VideoChannel } from '@app/shared/video-channel/video-channel.model'
   4 import { VideoChannelService } from '@app/shared/video-channel/video-channel.service'
   5 import { RestExtractor } from '@app/shared'
   6 import { catchError, distinctUntilChanged, map, switchMap } from 'rxjs/operators'
   7 import { Subscription } from 'rxjs'
   8 import { AuthService } from '@app/core'
   9 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
  10 import { SubscribeButtonComponent } from '@app/shared/user-subscription/subscribe-button.component'
  11
  12 @Component({
  13   templateUrl: './video-channels.component.html',
  14   styleUrls: [ './video-channels.component.scss' ]
  15 })
  16 export class VideoChannelsComponent implements OnInit, OnDestroy {
  17   @ViewChild('subscribeButton') subscribeButton: SubscribeButtonComponent
  18
  19   videoChannel: VideoChannel
  20   hotkeys: Hotkey[]
  21
  22   private routeSub: Subscription
  23
  24   constructor (
  25     private route: ActivatedRoute,
  26     private authService: AuthService,
  27     private videoChannelService: VideoChannelService,
  28     private restExtractor: RestExtractor,
  29     private hotkeysService: HotkeysService
  30   ) { }
  31
  32   ngOnInit () {
  33     this.routeSub = this.route.params
  34                         .pipe(
  35                           map(params => params[ 'videoChannelId' ]),
  36                           distinctUntilChanged(),
  37                           switchMap(videoChannelId => this.videoChannelService.getVideoChannel(videoChannelId)),
  38                           catchError(err => this.restExtractor.redirectTo404IfNotFound(err, [ 400, 404 ]))
  39                         )
  40                         .subscribe(videoChannel => this.videoChannel = videoChannel)
  41
  42     this.hotkeys = [
  43       new Hotkey('S', (event: KeyboardEvent): boolean => {
  44         this.subscribeButton.subscribed ?
  45           this.subscribeButton.unsubscribe() :
  46           this.subscribeButton.subscribe()
  47         return false
  48       }, undefined, 'Subscribe to the account')
  49     ]
  50     if (this.isUserLoggedIn()) this.hotkeysService.add(this.hotkeys)
  51   }
  52
  53   ngOnDestroy () {
  54     if (this.routeSub) this.routeSub.unsubscribe()
  55
  56     // Unbind hotkeys
  57     if (this.isUserLoggedIn()) this.hotkeysService.remove(this.hotkeys)
  58   }
  59
  60   isUserLoggedIn () {
  61     return this.authService.isLoggedIn()
  62   }
  63 }