MediaWiki:Common.js

document.addEventListener("DOMContentLoaded", function () {
    setTimeout(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");
            });
        }
    }, 500);
});