+$(document).ready(function () {
+ // NB: Turns Turbo Drive off by default. Turbo Drive must be opt-in on a per-link and per-form basis
+ // See https://turbo.hotwired.dev/reference/drive#turbo.session.drive
+ Turbo.session.drive = false;
+
+ const $expandedSecondaryMenu = $("header nav.secondary > ul"),
+ $collapsedSecondaryMenu = $("#compact-secondary-nav > ul"),
+ secondaryMenuItems = [],
+ breakpointWidth = 768;
+ let moreItemWidth = 0;
+
+ function updateHeader() {
+ const windowWidth = $(window).width();
+
+ if (windowWidth < breakpointWidth) {
+ $("body").addClass("small-nav");
+ expandAllSecondaryMenuItems();
+ } else {
+ $("body").removeClass("small-nav");
+ const availableWidth = $expandedSecondaryMenu.width();
+ secondaryMenuItems.forEach(function (item) {
+ $(item[0]).remove();
+ });
+ let runningWidth = 0,
+ i = 0,
+ requiredWidth;
+ for (; i < secondaryMenuItems.length; i++) {
+ runningWidth += secondaryMenuItems[i][1];
+ if (i < secondaryMenuItems.length - 1) {
+ requiredWidth = runningWidth + moreItemWidth;
+ } else {
+ requiredWidth = runningWidth;
+ }
+ if (requiredWidth > availableWidth) {
+ break;
+ }
+ expandSecondaryMenuItem($(secondaryMenuItems[i][0]));
+ }
+ for (; i < secondaryMenuItems.length; i++) {
+ collapseSecondaryMenuItem($(secondaryMenuItems[i][0]));
+ }
+ }
+ }
+
+ function expandAllSecondaryMenuItems() {
+ secondaryMenuItems.forEach(function (item) {
+ expandSecondaryMenuItem($(item[0]));
+ });
+ }
+
+ function expandSecondaryMenuItem($item) {
+ $item.children("a")
+ .removeClass("dropdown-item")
+ .addClass("nav-link")
+ .addClass(function () {
+ return $(this).hasClass("active") ? "text-secondary-emphasis" : "text-secondary";
+ });
+ $item.addClass("nav-item").insertBefore("#compact-secondary-nav");
+ toggleCompactSecondaryNav();
+ }
+
+ function collapseSecondaryMenuItem($item) {
+ $item.children("a")
+ .addClass("dropdown-item")
+ .removeClass("nav-link text-secondary text-secondary-emphasis");
+ $item.removeClass("nav-item").appendTo($collapsedSecondaryMenu);
+ toggleCompactSecondaryNav();
+ }
+
+ function toggleCompactSecondaryNav() {
+ $("#compact-secondary-nav").toggle(
+ $collapsedSecondaryMenu.find("li").length > 0
+ );
+ }
+
+ /*
+ * Chrome 60 and later seem to fire the "ready" callback
+ * before the DOM is fully ready causing us to measure the
+ * wrong sizes for the header elements - use a 0ms timeout
+ * to defer the measurement slightly as a workaround.
+ */
+ setTimeout(function () {
+ $expandedSecondaryMenu.find("li:not(#compact-secondary-nav)").each(function () {
+ secondaryMenuItems.push([this, $(this).width()]);
+ });
+ moreItemWidth = $("#compact-secondary-nav").width();
+
+ updateHeader();