MediaWiki:Common.js

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

// COLLAPSIBLE HEADER - improved (arrow left + CSS rotate)
$(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 (template may add class "open")
        var startsOpen = header.hasClass("open");

        // Hide content only if it should start closed
        if (!startsOpen) {
            content.hide();
        } else {
            // ensure the header has the open class in case it's needed
            header.addClass("open");
        }

        // Always use the same arrow character and rotate with CSS
        // Prepend so the arrow appears before the header text
        header.prepend('<span class="collapse-toggle" aria-hidden="true">▼</span>');

        // Make header clickable
        header.css("cursor", "pointer");

        // Collapse / Expand behavior
        header.on("click", function () {
            content.slideToggle(200);
            header.toggleClass("open");
        });
    });
});