var menu_timeout = null;
function set_visible(menu, b)
{
var category = menu.children[0];
var dropdown = menu.children[1];
if (dropdown != null) {
dropdown.style.visibility = b ? 'visible' : 'hidden';
}
}
function find_enclosing_menu(el)
{
while (!el.classList.contains('menu')) {
el = el.parentNode;
}
return el;
}
function menu_open_popup(el)
{
menu_close_all();
set_visible(el, true);
}
function menu_leave()
{
if (menu_timeout != null) {
window.clearTimeout(menu_timeout);
}
menu_timeout = window.setTimeout(menu_close_all, 300);
}
function menu_close_all()
{
for (let menu of document.getElementsByClassName('menu')) {
set_visible(menu, false);
}
if (menu_timeout != null) {
window.clearTimeout(menu_timeout);
menu_timeout = null;
}
}
document.onclick = menu_close_all();