mirror of https://github.com/Damillora/Yuika
55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
function toggleMenu() {
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document.querySelector(".site-header").classList.toggle('enabled');
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document.querySelector(".site-header__background").classList.toggle('site-header__background--enabled');
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document.querySelector(".menu").classList.toggle("enabled");
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}
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document.querySelector("#menushow").addEventListener("click", toggleMenu);
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var nav = document.querySelector('.site-header');
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var feed = document.querySelector('main');
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var lastScrollY = window.scrollY;
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var lastWindowHeight = window.innerHeight;
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var lastDocumentHeight = document.height;
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var ticking = false;
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function onScroll() {
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lastScrollY = window.scrollY;
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requestTick();
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}
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function onResize() {
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lastWindowHeight = window.innerHeight;
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lastDocumentHeight = document.height;
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requestTick();
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}
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function requestTick() {
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if (!ticking) {
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requestAnimationFrame(update);
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}
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ticking = true;
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}
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function update() {
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var trigger = feed.getBoundingClientRect().top + window.scrollY;
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var progressMax = lastDocumentHeight - lastWindowHeight;
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// show/hide nav
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if (lastScrollY >= nav.getBoundingClientRect().bottom) {
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nav.classList.add('detached');
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} else {
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nav.classList.remove('detached');
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}
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ticking = false;
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}
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window.addEventListener('scroll', onScroll, { passive: true });
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window.addEventListener('resize', onResize, false);
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update();
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