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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /** | ||
| * @file | ||
| * Sets up show/hide interactions for mobile menu including focus trap. | ||
| */ | ||
|
|
||
| import { createFocusTrap } from "focus-trap"; | ||
|
|
||
| export default (Drupal, once) => { | ||
| let mainMenu; | ||
| let mainMenuCaret; | ||
| let mobileNavButton; | ||
| let mobileNavButtonState; | ||
| let header; | ||
| let headerFocusTrap; | ||
| let searchButton; | ||
|
|
||
| /** | ||
| * Functionality of mobile menu. | ||
| */ | ||
| function mobileMenuControl(e) { | ||
| e.stopImmediatePropagation(); | ||
|
|
||
| // Check if search button is in DOM, if so, make sure it | ||
| // closes before menu opens. | ||
| searchButton = header.querySelector(".utility-menu__link--search button"); | ||
| if (searchButton) { | ||
| searchButton.setAttribute("aria-expanded", false); | ||
| header | ||
| .querySelector(".aba-header__search-dropdown") | ||
| .classList.remove("is-visible"); | ||
| } | ||
|
|
||
| mobileNavButtonState = mobileNavButton.getAttribute("aria-expanded"); | ||
| // If mobile nav btn is closed, open it. | ||
| // Else, close it. | ||
| if (mobileNavButtonState == "false") { | ||
| headerFocusTrap.activate(); | ||
| mainMenu.style.setProperty("--header-height", header.clientHeight + "px"); | ||
| mobileNavButton.setAttribute("aria-expanded", true); | ||
| mainMenu.classList.add("is-visible"); | ||
| mainMenuCaret.classList.add("is-visible"); | ||
| document.body.classList.add("is-fixed"); | ||
| document.addEventListener("click", clickOutside); | ||
| } else { | ||
| headerFocusTrap.deactivate(); | ||
| mobileNavButton.setAttribute("aria-expanded", false); | ||
| mainMenu.classList.remove("is-visible"); | ||
| mainMenuCaret.classList.remove("is-visible"); | ||
| document.body.classList.remove("is-fixed"); | ||
| document.removeEventListener("click", clickOutside); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Ensure mobile menu closes if click outside. | ||
| */ | ||
| function clickOutside(event) { | ||
| if (!event.target.closest(".main-menu")) { | ||
| mobileNavButton.setAttribute("aria-expanded", false); | ||
| mainMenu.classList.remove("is-visible"); | ||
| mainMenuCaret.classList.remove("is-visible"); | ||
| document.body.classList.remove("is-fixed"); | ||
| document.removeEventListener("click", clickOutside); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Initialize event listeners and focus trap. | ||
| */ | ||
| function init(el) { | ||
| header = el; | ||
| mobileNavButton = header.querySelector(".mobile-nav-button__button"); | ||
| mainMenu = header.querySelector(".main-menu"); | ||
| mainMenuCaret = header.querySelector(".main-menu__caret"); | ||
| headerFocusTrap = createFocusTrap([".mobile-nav-button", ".main-menu"], { | ||
| clickOutsideDeactivates: true, | ||
| }); | ||
| mobileNavButton.addEventListener("click", mobileMenuControl); | ||
| document.addEventListener("keyup", (e) => { | ||
| if (e.key === "Escape") { | ||
| headerFocusTrap.deactivate(); | ||
| mobileNavButton.setAttribute("aria-expanded", false); | ||
| mainMenu.classList.remove("is-visible"); | ||
| mainMenuCaret.classList.remove("is-visible"); | ||
| document.body.classList.remove("is-fixed"); | ||
| document.removeEventListener("click", clickOutside); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| Drupal.behaviors.mainMenu = { | ||
| attach(context) { | ||
| once("mobileHeader", ".aba-header--wrapper", context).forEach(init); | ||
| }, | ||
| }; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| import mobileNav from "./mobile-nav"; | ||
| // Ensures correct colors are shown for :active state of buttons on iOS. | ||
| document.addEventListener("touchstart", function () {}, false); | ||
| mobileNav(Drupal, once); |
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