MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
alert("JS is running");
mw.loader.using(['mediawiki.util']).then(function () {

    function processList() {
        const container = document.querySelector("#ns-tree");
        if (!container) return;

        const items = container.querySelectorAll("li");

        if (items.length === 0) {
            // Try again shortly (content not ready yet)
            setTimeout(processList, 200);
            return;
        }

        items.forEach(function (li) {
            const link = li.querySelector("a");
            if (!link) return;

            const full = link.textContent;

            let clean = full.replace(/^Drupal:/, "");

            const depth = (clean.match(/\//g) || []).length;

            const parts = clean.split("/");
            const label = parts[parts.length - 1];

            link.textContent = label;

            li.style.marginLeft = (depth * 20) + "px";

            if (depth === 0) {
                li.classList.add("top-level");
                link.style.fontWeight = "bold";
            }
        });
    }

    // Run after DOM ready
    $(processList);

});