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GitHub top bar enhancement
// ==UserScript==
// @name GitHub top bar enhancement
// @namespace https://ccoooss.com/
// @version 0.1.3
// @description Fix and Auto Hide GitHub Top Bar w/ Ocototree caused headerbar displacement fix
// @author Yukino Song
// @match https://github.com
// @match https://github.com/*/*
// @match https://gist.github.com/*
// @grant none
// ==/UserScript==
const getStyle = height => `
body {
padding-top: ${height}px;
}
.js-header-wrapper {
z-index: 120;
position: fixed !important;
width: 100%;
min-width: 1020px;
top: 0;
left: 0;
transform: translate3d(0, 0, 0);
transition: transform .3s;
}
.js-header-wrapper.hidden {
transform: translate3d(0, -${height}px, 0);
}
.details-overlay[open]>summary:before {
height: 100vh;
}
summary.HeaderNavlink.name.mt-1::before {
height: 100vh;
}
@media screen and (max-width: 1480px) {
.octotree-show .Header {
min-width: 1246px;
padding-left: 226px;
}
.octotree-show .Header .container-lg {
margin-left: 0;
}
}
`;
const getScrollHeight = () => {
return window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
};
// Use native smooth scrolling method (Chrome >= 61, Firefox >= 36)
const smoothScrollTop = () => window.scroll({
top: 0,
behavior: 'smooth'
});
(function() {
'use strict';
// Your code here...
// Inject style
const header = document.querySelector('.js-header-wrapper');
if (!header) return;
const headerHeight = parseInt(window.getComputedStyle(header).height, 10);
document.querySelector('head').insertAdjacentHTML('beforeend', `<style>${getStyle(headerHeight)}</style>`);
// header.setAttribute('style', 'position: fixed!important')
let previousHeight = getScrollHeight();
const updateScroll = () => {
const prev = previousHeight;
const height = getScrollHeight();
previousHeight = height;
// Always show on top
if (height < headerHeight) {
header.classList.remove('hidden');
return;
}
if (height > prev && !document.querySelector('.details-overlay[open]')) header.classList.add('hidden');
else header.classList.remove('hidden');
};
window.addEventListener('scroll', updateScroll);
header.addEventListener('dblclick', smoothScrollTop);
})();
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