MediaWiki:Common.js

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

        // Create Floating ToC Box
        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");
            }
        });

    }, 500);
});