root-8.x-1.x-dev/assets/js/seeds-root.js

/**
 * @file
 * Responsive advanced sidebar tray.
 *
 * This also supports collapsible navigable is the 'is-collapsible' class is
 * added to the main element, and a target element is included.
 */
(function ($, Drupal, _) {
  "use strict";

  /**
   * Initialise the advanced sidebar tray JS.
   */
  Drupal.behaviors.nodeSidebar = {
    attach: function (context) {
      var body = $(context).find("body.seeds-root");
      // Add a click handler to the button(s) that toggle the advanced sidebar
      // tray.
      var toggleBtn = body.find("[data-toggle-advanced-sidebar]");
      if (body.length && toggleBtn.length) {
        $(once("node-sidebar", toggleBtn))
          .unbind("click")
          .on("click", function (e) {
            e.preventDefault();
            body.toggleClass("advanced-sidebar-tray-toggled");

            // Trigger resize event.
            $(window).trigger("resize.tabs");
          });
      }
    },
  };
})(jQuery, Drupal);