https://inspiringquotes.com/wp-content/themes/inspiring-quotes/js/navigation.js?ver=1.0.0

1/**
2 * File navigation.js.
3 *
4 * Handles toggling the navigation menu for small screens and enables TAB key
5 * navigation support for dropdown menus.
6 */
7(function () {
8	const siteNavigation = document.getElementById("site-navigation");
9
10	// Return early if the navigation doesn't exist.
11	if (!siteNavigation) {
12		return;
13	}
14
15	const button = siteNavigation.getElementsByTagName("button")[0];
16
17	// Return early if the button doesn't exist.
18	if ("undefined" === typeof button) {
19		return;
20	}
21
22	const menu = siteNavigation.getElementsByTagName("ul")[0];
23
24	// Hide menu toggle button if menu is empty and return early.
25	if ("undefined" === typeof menu) {
26		button.style.display = "none";
27		return;
28	}
29
30	if (!menu.classList.contains("nav-menu")) {
31		menu.classList.add("nav-menu");
32	}
33
34	// Toggle the .toggled class and the aria-expanded value each time the button is clicked.
35	button.addEventListener("click", function () {
36		siteNavigation.classList.toggle("toggled");
37
38		if (button.getAttribute("aria-expanded") === "true") {
39			button.setAttribute("aria-expanded", "false");
40		} else {
41			button.setAttribute("aria-expanded", "true");
42		}
43	});
44
45	// Remove the .toggled class and set aria-expanded to false when the user clicks outside the navigation.
46	document.addEventListener("click", function (event) {
47		const isClickInside = siteNavigation.contains(event.target);
48
49		if (!isClickInside) {
50			siteNavigation.classList.remove("toggled");
51			button.setAttribute("aria-expanded", "false");
52		}
53	});
54
55	// Get all the link elements within the menu.
56	const links = menu.getElementsByTagName("a");
57
58	// Get all the link elements with children within the menu.
59	const linksWithChildren = menu.querySelectorAll(
60		".menu-item-has-children > a, .page_item_has_children > a"
61	);
62
63	// Toggle focus each time a menu link is focused or blurred.
64	for (const link of links) {
65		link.addEventListener("focus", toggleFocus, true);
66		link.addEventListener("blur", toggleFocus, true);
67	}
68
69	// Toggle focus each time a menu link with children receive a touch event.
70	for (const link of linksWithChildren) {
71		link.addEventListener("touchstart", toggleFocus, false);
72	}
73
74	/**
75	 * Sets or removes .focus class on an element.
76	 */
77	function toggleFocus() {
78		if (event.type === "focus" || event.type === "blur") {
79			let self = this;
80			// Move up through the ancestors of the current link until we hit .nav-menu.
81			while (!self.classList.contains("nav-menu")) {
82				// On li elements toggle the class .focus.
83				if ("li" === self.tagName.toLowerCase()) {
84					self.classList.toggle("focus");
85				}
86				self = self.parentNode;
87			}
88		}
89
90		if (event.type === "touchstart") {
91			const menuItem = this.parentNode;
92			event.preventDefault();
93			for (const link of menuItem.parentNode.children) {
94				if (menuItem !== link) {
95					link.classList.remove("focus");
96				}
97			}
98			menuItem.classList.toggle("focus");
99		}
100	}
101})();