customfield/field/number/amd/src/recalculate.js

  1. // This file is part of Moodle - http://moodle.org/
  2. //
  3. // Moodle is free software: you can redistribute it and/or modify
  4. // it under the terms of the GNU General Public License as published by
  5. // the Free Software Foundation, either version 3 of the License, or
  6. // (at your option) any later version.
  7. //
  8. // Moodle is distributed in the hope that it will be useful,
  9. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11. // GNU General Public License for more details.
  12. //
  13. // You should have received a copy of the GNU General Public License
  14. // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16. /**
  17.  * Allows to recalculate a single value on demand
  18.  *
  19.  * @module     customfield_number/recalculate
  20.  * @author     2024 Marina Glancy
  21.  * @copyright  2024 Moodle Pty Ltd <support@moodle.com>
  22.  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23.  */
  25. import Ajax from 'core/ajax';
  26. import Notification from 'core/notification';
  27. import {addIconToContainer} from 'core/loadingicon';
  28. import Pending from 'core/pending';
  30. const SELECTORS = {
  31.     wrapper: '[data-fieldtype="wrapper"]',
  32.     value: '[data-fieldtype="value"]',
  33.     link: '[data-fieldtype="link"]',
  34. };
  36. let initialised = false;
  38. /**
  39.  * Init
  40.  */
  41. export function init() {
  42.     if (initialised) {
  43.         return;
  44.     }
  46.     document.addEventListener('click', (e) => {
  47.         const target = e.target.closest(SELECTORS.wrapper + " " + SELECTORS.link);
  48.         if (!target) {
  49.             return;
  50.         }
  51.         const el = target.closest(SELECTORS.wrapper).querySelector(SELECTORS.value);
  52.         if (!el) {
  53.             return;
  54.         }
  55.         e.preventDefault();
  57.         const {fieldid, instanceid} = target.dataset;
  59.         const pendingPromise = new Pending('recalculate_customfield_number');
  60.         addIconToContainer(el).then(() => {
  61.             return Ajax.call([{
  62.                 methodname: 'customfield_number_recalculate_value',
  63.                 args: {fieldid, instanceid}
  64.             }])[0];
  65.         }).then((data) => {
  66.             el.innerHTML = data.value;
  67.             return pendingPromise.resolve();
  68.         }).catch(Notification.exception);
  69.     });
  71.     initialised = true;
  72. }