// Back to Top Button Component class BackToTopButton extends HTMLElement { connectedCallback() { this.innerHTML = ` `; const btn = this.querySelector('#backToTopBtn'); // let previousScrollY = window.scrollY; // window.addEventListener('scroll', () => { // const currentScrollY = window.scrollY; // const isScrollingUp = currentScrollY < previousScrollY; // const shouldShowButton = currentScrollY > 300 && isScrollingUp; // btn.style.display = shouldShowButton ? 'block' : 'none'; // previousScrollY = currentScrollY; // }); btn.addEventListener('click', () => { window.scrollTo({ top: 0, behavior: 'smooth' }); }); } } export function registerBackToTopButton() { if (!customElements.get('x-back-to-top')) { customElements.define('x-back-to-top', BackToTopButton); } }