client/src/app/shared/shared-video-miniature/videos-selection.component.ts

   1 import { Observable, Subject } from 'rxjs'
   2 import { AfterContentInit, Component, ContentChildren, EventEmitter, Input, Output, QueryList, TemplateRef } from '@angular/core'
   3 import { ComponentPagination, Notifier, User } from '@app/core'
   4 import { ResultList, VideoSortField } from '@shared/models'
   5 import { PeerTubeTemplateDirective, Video } from '../shared-main'
   6 import { MiniatureDisplayOptions } from './video-miniature.component'
   7
   8 export type SelectionType = { [ id: number ]: boolean }
   9
  10 @Component({
  11   selector: 'my-videos-selection',
  12   templateUrl: './videos-selection.component.html',
  13   styleUrls: [ './videos-selection.component.scss' ]
  14 })
  15 export class VideosSelectionComponent implements AfterContentInit {
  16   @Input() user: User
  17   @Input() pagination: ComponentPagination
  18
  19   @Input() titlePage: string
  20
  21   @Input() miniatureDisplayOptions: MiniatureDisplayOptions
  22
  23   @Input() noResultMessage = $localize`No results.`
  24   @Input() enableSelection = true
  25
  26   @Input() disabled = false
  27
  28   @Input() getVideosObservableFunction: (page: number, sort?: VideoSortField) => Observable<ResultList<Video>>
  29
  30   @ContentChildren(PeerTubeTemplateDirective) templates: QueryList<PeerTubeTemplateDirective<'rowButtons' | 'globalButtons'>>
  31
  32   @Output() selectionChange = new EventEmitter<SelectionType>()
  33   @Output() videosModelChange = new EventEmitter<Video[]>()
  34
  35   _selection: SelectionType = {}
  36
  37   rowButtonsTemplate: TemplateRef<any>
  38   globalButtonsTemplate: TemplateRef<any>
  39
  40   videos: Video[] = []
  41   sort: VideoSortField = '-publishedAt'
  42
  43   onDataSubject = new Subject<any[]>()
  44
  45   hasDoneFirstQuery = false
  46
  47   private lastQueryLength: number
  48
  49   constructor (
  50     private notifier: Notifier
  51   ) { }
  52
  53   @Input() get selection () {
  54     return this._selection
  55   }
  56
  57   set selection (selection: SelectionType) {
  58     this._selection = selection
  59     this.selectionChange.emit(this._selection)
  60   }
  61
  62   @Input() get videosModel () {
  63     return this.videos
  64   }
  65
  66   set videosModel (videos: Video[]) {
  67     this.videos = videos
  68     this.videosModelChange.emit(this.videos)
  69   }
  70
  71   ngAfterContentInit () {
  72     {
  73       const t = this.templates.find(t => t.name === 'rowButtons')
  74       if (t) this.rowButtonsTemplate = t.template
  75     }
  76
  77     {
  78       const t = this.templates.find(t => t.name === 'globalButtons')
  79       if (t) this.globalButtonsTemplate = t.template
  80     }
  81
  82     this.loadMoreVideos()
  83   }
  84
  85   getVideosObservable (page: number) {
  86     return this.getVideosObservableFunction(page, this.sort)
  87   }
  88
  89   abortSelectionMode () {
  90     this._selection = {}
  91   }
  92
  93   isInSelectionMode () {
  94     return Object.keys(this._selection).some(k => this._selection[k] === true)
  95   }
  96
  97   videoById (index: number, video: Video) {
  98     return video.id
  99   }
 100
 101   onNearOfBottom () {
 102     if (this.disabled) return
 103
 104     // No more results
 105     if (this.lastQueryLength !== undefined && this.lastQueryLength < this.pagination.itemsPerPage) return
 106
 107     this.pagination.currentPage += 1
 108
 109     this.loadMoreVideos()
 110   }
 111
 112   loadMoreVideos (reset = false) {
 113     this.getVideosObservable(this.pagination.currentPage)
 114       .subscribe({
 115         next: ({ data }) => {
 116           this.hasDoneFirstQuery = true
 117           this.lastQueryLength = data.length
 118
 119           if (reset) this.videos = []
 120           this.videos = this.videos.concat(data)
 121           this.videosModel = this.videos
 122
 123           this.onDataSubject.next(data)
 124         },
 125
 126         error: err => {
 127           const message = $localize`Cannot load more videos. Try again later.`
 128
 129           console.error(message, { err })
 130           this.notifier.error(message)
 131         }
 132       })
 133   }
 134
 135   reloadVideos () {
 136     this.pagination.currentPage = 1
 137     this.loadMoreVideos(true)
 138   }
 139
 140   removeVideoFromArray (video: Video) {
 141     this.videos = this.videos.filter(v => v.id !== video.id)
 142   }
 143 }