54 lines
2 KiB
JavaScript
54 lines
2 KiB
JavaScript
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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function hideNavs() {
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let navs = document.querySelectorAll('[data-a11y-toggle] + nav');
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navs.forEach((nav) => {
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if (!nav.hasAttribute('hidden')) {
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nav.previousElementSibling.setAttribute('aria-expanded', 'false');
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nav.setAttribute('hidden', 'true');
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}
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});
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}
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const navToggle = document.querySelectorAll('[data-a11y-toggle]');
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navToggle.forEach((toggle) => {
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let navList = toggle.nextElementSibling;
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let navLinks = navList.querySelectorAll('a');
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toggle.addEventListener('click', (event) => {
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if (navList.hasAttribute('hidden')) {
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toggle.setAttribute('aria-expanded', 'true');
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navList.removeAttribute('hidden');
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// Set focus on first link
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// will be highlighted for keyboard users
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navLinks[0].focus();
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} else {
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navList.setAttribute('hidden', 'true');
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toggle.setAttribute('aria-expanded', 'false');
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}
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event.stopPropagation();
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}, false);
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});
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document.addEventListener('keydown', (event) => {
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// Ignore IME composition
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if (event.isComposing || event.keyCode === 229) {
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return;
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}
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// Close menu with ESC key
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if (event.keyCode === 27) {
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hideNavs();
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}
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}, false);
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document.addEventListener('click', (event) => {
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// close navigation menus when clicking anywhere (except when on mobile)
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if (event.target.closest('[data-a11y-toggle] + nav') || Math.max(document.documentElement.clientWidth, window.innerWidth || 0) < 960) return
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hideNavs();
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})
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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