refreshless-8.x-1.x-dev/modules/refreshless_turbo/js/reload_reason.js

(function(Cookies, html, drupalSettings, $, once) {

  'use strict';

  /**
   * Our event namespace.
   *
   * @type {String}
   *
   * @see https://learn.jquery.com/events/event-basics/#namespacing-events
   */
  const eventNamespace = 'refreshless-turbo-reload-reason';

  /**
   * Our once() identifier.
   *
   * @type {String}
   */
  const onceName = eventNamespace;

  $(once(
    onceName, html,
  )).each(() => {

    // Remove the reload reason cookie if it exists. This should only be
    // evaluated after a reload (full page load).
    Cookies.remove(drupalSettings.refreshless.reloadReasonCookie.name);

  }).on(`refreshless:reload.${eventNamespace}`, (event) => {

    // Set a cookie containing the reason for the reload so that the back-end
    // can identify this as a Turbo reload. Turbo initiates the reload after
    // triggering this event, so this cookie will be included in the request.
    Cookies.set(
      drupalSettings.refreshless.reloadReasonCookie.name,
      event.detail.reason,
      drupalSettings.refreshless.reloadReasonCookie.attributes,
    );

    console.info(
      '%cRefreshLess%c: performed a full page load; reason: %c%s%c',
      'font-style: italic', 'font-style: normal',
      'font-family: monospace', event.detail.reason, 'font-family: revert',
    );

  });

// Note that we're intentionally referencing just drupalSettings and not
// drupalSettings.refreshless.reloadReasonCookie just in case different values
// get merged in from the back-end after one or more RefreshLess navigations.
})(Cookies, document.documentElement, drupalSettings, jQuery, once);