client/src/app/shared/rest/rest-table.ts

   1 import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
   2 import { LazyLoadEvent } from 'primeng/components/common/lazyloadevent'
   3 import { SortMeta } from 'primeng/components/common/sortmeta'
   4 import { RestPagination } from './rest-pagination'
   5 import { Subject } from 'rxjs'
   6 import { debounceTime, distinctUntilChanged } from 'rxjs/operators'
   7
   8 export abstract class RestTable {
   9
  10   abstract totalRecords: number
  11   abstract rowsPerPage: number
  12   abstract sort: SortMeta
  13   abstract pagination: RestPagination
  14
  15   protected search: string
  16   private searchStream: Subject<string>
  17   private sortLocalStorageKey = 'rest-table-sort-' + this.constructor.name
  18
  19   initialize () {
  20     this.loadSort()
  21     this.initSearch()
  22   }
  23
  24   loadSort () {
  25     const result = peertubeLocalStorage.getItem(this.sortLocalStorageKey)
  26
  27     if (result) {
  28       try {
  29         this.sort = JSON.parse(result)
  30       } catch (err) {
  31         console.error('Cannot load sort of local storage key ' + this.sortLocalStorageKey, err)
  32       }
  33     }
  34   }
  35
  36   loadLazy (event: LazyLoadEvent) {
  37     this.sort = {
  38       order: event.sortOrder,
  39       field: event.sortField
  40     }
  41
  42     this.pagination = {
  43       start: event.first,
  44       count: this.rowsPerPage
  45     }
  46
  47     this.loadData()
  48     this.saveSort()
  49   }
  50
  51   saveSort () {
  52     peertubeLocalStorage.setItem(this.sortLocalStorageKey, JSON.stringify(this.sort))
  53   }
  54
  55   initSearch () {
  56     this.searchStream = new Subject()
  57
  58     this.searchStream
  59       .pipe(
  60         debounceTime(400),
  61         distinctUntilChanged()
  62       )
  63       .subscribe(search => {
  64         this.search = search
  65         this.loadData()
  66       })
  67   }
  68
  69   onSearch (search: string) {
  70     this.searchStream.next(search)
  71   }
  72
  73   protected abstract loadData (): void
  74 }