MediaWiki:Common.js

document.addEventListener("DOMContentLoaded", function () {
    var toc = document.querySelector("#mw-content-text #toc");
    if (!toc) return;

    var floatingToc = document.createElement("div");
    floatingToc.id = "floating-toc";
    toc.parentNode.removeChild(toc);
    floatingToc.appendChild(toc);
    document.body.appendChild(floatingToc);

    var hideButton = floatingToc.querySelector(".toctogglelabel");

    if (hideButton) {
        hideButton.addEventListener("click", function (event) {
            event.preventDefault(); 
            floatingToc.classList.toggle("collapsed");
            event.stopPropagation(); 
        });
    }

    toc.addEventListener("click", function (event) {
        event.stopPropagation();
    });

    floatingToc.addEventListener("click", function (event) {
        if (floatingToc.classList.contains("collapsed") && event.target === floatingToc) {
            floatingToc.classList.remove("collapsed");
        }
    });
});