MediaWiki:Timeless.js

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/* All JavaScript here will be loaded for users of the Timeless skin */

/* Sticky wiki tools and sidebar */
var catSidebar = document.getElementById("catlinks-sidebar");
var pageTools = document.getElementById("page-tools");

var catSidebarVisible = false;

// Check if catlinks-sidebar exists
if (catSidebar) {
    var visibleCats = catSidebar.querySelectorAll(".mw-normal-catlinks ul li");
    var hiddenCats = catSidebar.querySelectorAll(".mw-hidden-catlinks ul li");

    // Hide if no visible categories and some hidden ones
    if (visibleCats.length === 0 && hiddenCats.length > 0) {
        catSidebar.style.display = "none";
    }

    // Check if it's visible after all that
    catSidebarVisible = catSidebar.style.display !== "none";
}

// Apply sticky logic
if (catSidebarVisible) {
    // Make catlinks-sidebar sticky
    catSidebar.style.position = "sticky";
    catSidebar.style.top = "70px";

    // Remove sticky from page-tools
    if (pageTools) {
        pageTools.style.position = "";
        pageTools.style.top = "";
    }
} else {
    // Make page-tools sticky
    if (pageTools) {
        pageTools.style.position = "sticky";
        pageTools.style.top = "70px";
    }

    // Remove sticky from catlinks-sidebar (if it exists)
    if (catSidebar) {
        catSidebar.style.position = "";
        catSidebar.style.top = "";
    }
}