demarches-normaliennes/app/javascript/new_design/champs/repetition.js

import { delegate, fire } from '@utils';

const CHAMP_SELECTOR = '.editable-champ';
const BUTTON_SELECTOR = '.button.remove-row';
const DESTROY_INPUT_SELECTOR = 'input[type=hidden][name*=_destroy]';
const DOM_ID_INPUT_SELECTOR = 'input[type=hidden][name*=deleted_row_dom_ids]';

delegate('click', BUTTON_SELECTOR, (evt) => {
  evt.preventDefault();

  const row = evt.target.closest('.row');

  for (let input of row.querySelectorAll(DESTROY_INPUT_SELECTOR)) {
    input.disabled = false;
    input.value = true;
  }
  row.querySelector(DOM_ID_INPUT_SELECTOR).disabled = false;

  for (let champ of row.querySelectorAll(CHAMP_SELECTOR)) {
    champ.remove();
  }

  evt.target.remove();
  row.classList.remove('row');

  // We could debounce the autosave request, so that row removal would be batched
  // with the next changes.
  // However *adding* a new repetition row isn't debounced (changes are immediately
  // effective server-side).
  // So, to avoid ordering issues, enqueue an autosave request as soon as the row
  // is removed.
  fire(row, 'autosave:trigger');
});