87 lines
3.1 KiB
JavaScript
87 lines
3.1 KiB
JavaScript
|
function dropdown() {
|
||
|
|
const mediaQuery = window.matchMedia('(max-width: 767px)');
|
||
|
|
|
||
|
|
const head = document.querySelector('.gh-navigation');
|
||
|
|
const menu = head.querySelector('.gh-navigation-menu');
|
||
|
|
const nav = menu?.querySelector('.nav');
|
||
|
|
if (!nav) return;
|
||
|
|
|
||
|
|
const logo = document.querySelector('.gh-navigation-logo');
|
||
|
|
const navHTML = nav.innerHTML;
|
||
|
|
|
||
|
|
if (mediaQuery.matches) {
|
||
|
|
const items = nav.querySelectorAll('li');
|
||
|
|
items.forEach(function (item, index) {
|
||
|
|
item.style.transitionDelay = `${0.03 * (index + 1)}s`;
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
const makeDropdown = function () {
|
||
|
|
if (mediaQuery.matches) return;
|
||
|
|
const submenuItems = [];
|
||
|
|
|
||
|
|
while ((nav.offsetWidth + 64) > menu.offsetWidth) {
|
||
|
|
if (nav.lastElementChild) {
|
||
|
|
submenuItems.unshift(nav.lastElementChild);
|
||
|
|
nav.lastElementChild.remove();
|
||
|
|
} else {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!submenuItems.length) {
|
||
|
|
head.classList.add('is-dropdown-loaded');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const toggle = document.createElement('button');
|
||
|
|
toggle.setAttribute('class', 'gh-more-toggle gh-icon-button');
|
||
|
|
toggle.setAttribute('aria-label', 'More');
|
||
|
|
toggle.innerHTML = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" fill="currentColor"><path d="M21.333 16c0-1.473 1.194-2.667 2.667-2.667v0c1.473 0 2.667 1.194 2.667 2.667v0c0 1.473-1.194 2.667-2.667 2.667v0c-1.473 0-2.667-1.194-2.667-2.667v0zM13.333 16c0-1.473 1.194-2.667 2.667-2.667v0c1.473 0 2.667 1.194 2.667 2.667v0c0 1.473-1.194 2.667-2.667 2.667v0c-1.473 0-2.667-1.194-2.667-2.667v0zM5.333 16c0-1.473 1.194-2.667 2.667-2.667v0c1.473 0 2.667 1.194 2.667 2.667v0c0 1.473-1.194 2.667-2.667 2.667v0c-1.473 0-2.667-1.194-2.667-2.667v0z"></path></svg>';
|
||
|
|
|
||
|
|
const wrapper = document.createElement('div');
|
||
|
|
wrapper.setAttribute('class', 'gh-dropdown');
|
||
|
|
|
||
|
|
if (submenuItems.length >= 10) {
|
||
|
|
head.classList.add('is-dropdown-mega');
|
||
|
|
wrapper.style.gridTemplateRows = `repeat(${Math.ceil(submenuItems.length / 2)}, 1fr)`;
|
||
|
|
} else {
|
||
|
|
head.classList.remove('is-dropdown-mega');
|
||
|
|
}
|
||
|
|
|
||
|
|
submenuItems.forEach(function (child) {
|
||
|
|
wrapper.appendChild(child);
|
||
|
|
});
|
||
|
|
|
||
|
|
toggle.appendChild(wrapper);
|
||
|
|
nav.appendChild(toggle);
|
||
|
|
|
||
|
|
head.classList.add('is-dropdown-loaded');
|
||
|
|
|
||
|
|
window.addEventListener('click', function (e) {
|
||
|
|
if (head.classList.contains('is-dropdown-open')) {
|
||
|
|
head.classList.remove('is-dropdown-open');
|
||
|
|
} else if (toggle.contains(e.target)) {
|
||
|
|
head.classList.add('is-dropdown-open');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
imagesLoaded(logo, function () {
|
||
|
|
makeDropdown();
|
||
|
|
});
|
||
|
|
|
||
|
|
window.addEventListener('load', function () {
|
||
|
|
if (!logo) {
|
||
|
|
makeDropdown();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
window.addEventListener('resize', function () {
|
||
|
|
setTimeout(() => {
|
||
|
|
nav.innerHTML = navHTML;
|
||
|
|
makeDropdown();
|
||
|
|
}, 1);
|
||
|
|
});
|
||
|
|
}
|