paperless-ngx/src-ui/src/app/components/common/input/date/date.component.ts

import { Component, forwardRef, OnInit } from '@angular/core'
import { NG_VALUE_ACCESSOR } from '@angular/forms'
import { SettingsService } from 'src/app/services/settings.service'
import { AbstractInputComponent } from '../abstract-input'

@Component({
  providers: [
    {
      provide: NG_VALUE_ACCESSOR,
      useExisting: forwardRef(() => DateComponent),
      multi: true,
    },
  ],
  selector: 'app-input-date',
  templateUrl: './date.component.html',
  styleUrls: ['./date.component.scss'],
})
export class DateComponent
  extends AbstractInputComponent<string>
  implements OnInit
{
  constructor(private settings: SettingsService) {
    super()
  }

  ngOnInit(): void {
    super.ngOnInit()
    this.placeholder = this.settings.getLocalizedDateInputFormat()
  }

  placeholder: string

  // prevent chars other than numbers and separators
  onKeyPress(event: KeyboardEvent) {
    if ('Enter' !== event.key && !/[0-9,\.\/-]+/.test(event.key)) {
      event.preventDefault()
    }
  }
}