engelsystem/resources/assets/js/sticky-headers.js

45 lines
1.2 KiB
JavaScript

import { ready } from './ready';
/**
* @param {NodeList} elements
* @param {string} styleProp
* @param {*} value
*/
const applyStyle = (elements, prop, value) => {
elements.forEach((element) => {
element.style[prop] = value;
});
}
/**
* Enables the fixed headers and time lane for the shift-calendar and datatables
*/
ready(() => {
if (!document.querySelector('.shift-calendar')) return;
const headers = document.querySelectorAll('.shift-calendar .header');
const timeLane = document.querySelector('.shift-calendar .time');
const topReference = document.querySelector('.container-fluid .row');
if (!headers.length || !timeLane || !topReference) return;
timeLane.style.position = 'relative';
timeLane.style.zIndex = 999;
applyStyle(headers, 'position', 'relative');
applyStyle(headers, 'zIndex', 900);
window.addEventListener('scroll', () => {
const top = headers.item(0).parentNode.getBoundingClientRect().top;
const left = 15;
timeLane.style.left = Math.max(0, window.scrollX - left) + 'px';
const headersTop = Math.max(
0,
window.scrollY - top - 13 + topReference.getBoundingClientRect().top
) + 'px';
applyStyle(headers, 'top', headersTop);
});
});