sweetalert2/src/instanceMethods/show-reset-validation-error.js

A beautiful, responsive, customizable and accessible (WAI-ARIA) replacement for JavaScript's popup boxes, supported fork of sweetalert

import * as dom from '../utils/dom/index'
import { swalClasses } from '../utils/classes'
import privateProps from '../privateProps'

// Show block with validation error
export function showValidationError (error) {
  const domCache = privateProps.domCache.get(this)
  domCache.validationError.innerHTML = error
  const popupComputedStyle = window.getComputedStyle(domCache.popup)
  domCache.validationError.style.marginLeft = `-${popupComputedStyle.getPropertyValue('padding-left')}`
  domCache.validationError.style.marginRight = `-${popupComputedStyle.getPropertyValue('padding-right')}`
  dom.show(domCache.validationError)

  const input = this.getInput()
  if (input) {
    input.setAttribute('aria-invalid', true)
    input.setAttribute('aria-describedBy', swalClasses.validationerror)
    dom.focusInput(input)
    dom.addClass(input, swalClasses.inputerror)
  }
}

// Hide block with validation error
export function resetValidationError () {
  const domCache = privateProps.domCache.get(this)
  if (domCache.validationError) {
    dom.hide(domCache.validationError)
  }

  const input = this.getInput()
  if (input) {
    input.removeAttribute('aria-invalid')
    input.removeAttribute('aria-describedBy')
    dom.removeClass(input, swalClasses.inputerror)
  }
}