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import * as debug from 'debug'
import { Subject } from 'rxjs'
import { debounceTime, distinctUntilChanged } from 'rxjs/operators'
import { Component, EventEmitter, Input, OnInit, Output } from '@angular/core'
import { ActivatedRoute, Params, Router } from '@angular/router'
export type AdvancedInputFilter = {
label: string
queryParams: Params
}
const logger = debug('peertube:AdvancedInputFilterComponent')
@Component({
selector: 'my-advanced-input-filter',
templateUrl: './advanced-input-filter.component.html',
styleUrls: [ './advanced-input-filter.component.scss' ]
})
export class AdvancedInputFilterComponent implements OnInit {
@Input() filters: AdvancedInputFilter[] = []
@Output() search = new EventEmitter<string>()
searchValue: string
private searchStream: Subject<string>
constructor (
private route: ActivatedRoute,
private router: Router
) { }
ngOnInit () {
this.initSearchStream()
this.listenToRouteSearchChange()
}
onInputSearch (event: Event) {
this.updateSearch((event.target as HTMLInputElement).value)
}
onResetTableFilter () {
this.updateSearch('')
}
hasFilters () {
return this.filters.length !== 0
}
private updateSearch (value: string) {
this.searchValue = value
this.searchStream.next(this.searchValue)
}
private listenToRouteSearchChange () {
this.route.queryParams
.subscribe(params => {
const search = params.search || ''
logger('On route search change "%s".', search)
this.updateSearch(search)
})
}
private initSearchStream () {
this.searchStream = new Subject()
this.searchStream
.pipe(
debounceTime(200),
distinctUntilChanged()
)
.subscribe(() => {
logger('On search "%s".', this.searchValue)
this.setQueryParams(this.searchValue)
this.search.emit(this.searchValue)
})
}
private setQueryParams (search: string) {
const queryParams: Params = {}
if (search) Object.assign(queryParams, { search })
this.router.navigate([ ], { queryParams })
}
}
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