MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */

// COLLAPSIBLE HEADER
$(document).ready(function () {
    $(".collapsible-header").each(function () {
        var header = $(this);
        var content = header.next(".collapsible-content");
        // Skip if there is no associated collapsible-content block
        if (content.length === 0) return;
        // Check if the section should start open
        var startsOpen = header.hasClass("open");
        // Hide content only if it should start closed
        if (!startsOpen) {
            content.hide();
        }
        // Initial toggle indicator
        var indicator = startsOpen ? "[-]" : "[+]";
        header.append(' <span class="collapse-toggle">' + indicator + '</span>');
        // Make header clickable
        header.css("cursor", "pointer");
        // Collapse / Expand behavior
        header.on("click", function () {
            content.slideToggle(200);
            var toggle = header.find(".collapse-toggle");
            toggle.text(toggle.text() === "[+]" ? "[-]" : "[+]");
        });
    });
});