40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
const SCROLL_MIN = 100;
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const $scroll_to_top = document.getElementById("scroll-to-top");
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const $drawer = document.getElementById("drawer");
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const $drawer_item = document.querySelectorAll(".drawer-item");
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function checkScroll() {
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if (document.documentElement.scrollTop > SCROLL_MIN || document.body.scrollTop > SCROLL_MIN) {
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$scroll_to_top.style.visibility = "visible";
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} else {
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$scroll_to_top.style.visibility = "hidden";
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}
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}
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function scrollToTop() {
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document.documentElement.scrollTop = 0;
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document.body.scrollTop = 0;
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}
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async function sleep(milliseconds) {
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return new Promise(resolve => setTimeout(resolve, milliseconds));
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}
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async function toggleDropdown() {
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let expanded = $drawer.classList.contains("expanded");
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if (expanded) {
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for (let i = 0; i < $drawer_item.length; i++) {
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$drawer_item[i].classList.toggle("visible");
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}
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$drawer.classList.toggle("expanded");
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} else {
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$drawer.classList.toggle("expanded");
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await sleep(250);
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for (let i = 0; i < $drawer_item.length; i++) {
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$drawer_item[i].classList.toggle("visible");
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}
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}
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}
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window.addEventListener('load', checkScroll);
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window.addEventListener('scroll', checkScroll); |