MediaWiki:Common.js

/* 这里的任何JavaScript将为所有用户在每次页面载入时加载。 */
document.addEventListener("DOMContentLoaded", function () {
    const tocLinks = Array.from(document.querySelectorAll("#toc a"));
    const sections = tocLinks.map(link => {
        const id = decodeURIComponent(link.getAttribute("href").slice(1));
        const el = document.getElementById(id);
        if (el) {
            return { link: link, target: el };
        }
        return null;
    }).filter(Boolean);

    function updateHighlight() {
        const scrollPosition = window.scrollY + 120;

        let current = null;
        for (const section of sections) {
            if (section.target.offsetTop <= scrollPosition) {
                current = section;
            } else {
                break;
            }
        }

        // 清除所有高亮
        tocLinks.forEach(link => link.classList.remove("active-section"));

        // 添加当前高亮
        if (current) {
            current.link.classList.add("active-section");
        }
    }

    // 首次触发 + 滚动触发
    updateHighlight();
    window.addEventListener("scroll", updateHighlight);
});