hamann-ausgabe-core/HaWeb/wwwroot/js/active.js

// Gives active classes to links with active URLs
// Marks links as active which target URL starts with the current URL
const markactive_startswith = function (element) {
    var all_links = element.getElementsByTagName("a"),
        i = 0,
        len = all_links.length,
        full_path = location.href.split("#")[0].toLowerCase(); //Ignore hashes

    for (; i < len; i++) {
        if (full_path.startsWith(all_links[i].href.toLowerCase())) {
            all_links[i].className += " active";
        }
    }
};

// Marks links active which target URL is exact the same as the current URL
const markactive_exact = function (element) {
    var all_links = element.getElementsByTagName("a"),
        i = 0,
        len = all_links.length,
        full_path = location.href.split("#")[0].toLowerCase(); //Ignore hashes

    for (; i < len; i++) {
        if (full_path == all_links[i].href.toLowerCase() || full_path == all_links[i].href.toLowerCase() + "/") {
            all_links[i].className += " active";
        }
    }
};

// Marks links as active, single links mutch match exactly, dropdown only the beginning
const markactive_menu = function (element) {
    var all_links = element.getElementsByTagName("a"),
        i = 0,
        len = all_links.length,
        marked = false,
        full_path = location.href.split("#")[0].toLowerCase(); //Ignore hashes
    full_path = full_path.split("?")[0];

    for (; i < len; i++) {
        if (all_links[i].parentNode.classList.contains("ha-topnav-dropdown")) {
            if (full_path.startsWith(all_links[i].href.toLowerCase())) {
                all_links[i].className += " active pointer-events-none";
                marked = true;
            }
        } else {
            if (full_path == all_links[i].href.toLowerCase() || full_path == all_links[i].href.toLowerCase() + "/") {
                all_links[i].className += " active pointer-events-none";
                marked = true;
            }
        }
    }

    i = 0;
    if (marked === false) {
        for (; i < len; i++) {
            if (all_links[i].classList.contains("ha-active-default")) {
                all_links[i].className += " active";
            }
        }
    }
};

if (document.getElementById("ha-topnav") !== null)
    markactive_menu(document.getElementById("ha-topnav"));
if (document.getElementById("ha-register-nav") !== null)
    markactive_exact(document.getElementById("ha-register-nav"));
if (this.document.getElementById("ha-adminuploadfields") !== null)
    markactive_exact(document.getElementById("ha-adminuploadfields"));