consul/website/source/assets/javascripts/section-quicknav.js

43 lines
2.0 KiB
JavaScript

// On docs/content pages, add a hierarchical quick nav menu if there are
// more than two H2/H3/H4 headers.
document.addEventListener("turbolinks:load", function() {
var headers = $('#inner').find('h2, h3, h4');
if (window.location.pathname !== "/docs/index.html" && $("div#inner-quicknav").length === 0 && headers.length > 0) {
// Build the quick-nav HTML:
$("#inner h1").first().after(
'<div id="inner-quicknav">' +
'<span id="inner-quicknav-trigger">' +
'Jump to Section' +
'<svg width="9" height="5" xmlns="http://www.w3.org/2000/svg"><path d="M8.811 1.067a.612.612 0 0 0 0-.884.655.655 0 0 0-.908 0L4.5 3.491 1.097.183a.655.655 0 0 0-.909 0 .615.615 0 0 0 0 .884l3.857 3.75a.655.655 0 0 0 .91 0l3.856-3.75z" fill-rule="evenodd"/></svg>' +
'</span>' +
'<ul class="dropdown"></ul>' +
'</div>'
);
var quickNav = $('#inner-quicknav > ul.dropdown');
headers.each(function(index, element) {
var level = element.nodeName.toLowerCase();
var header_text = $(element).text();
var header_id = $(element).attr('id');
quickNav.append('<li class="level-' + level + '"><a href="#' + header_id + '">' + header_text + '</a></li>');
});
// Attach event listeners:
// Trigger opens and closes.
$('#inner-quicknav #inner-quicknav-trigger').on('click', function(e) {
$(this).siblings('ul').toggleClass('active');
e.stopPropagation();
});
// Clicking inside the quick-nav doesn't close it.
quickNav.on('click', function(e) {
e.stopPropagation();
});
// Jumping to a section means you're done with the quick-nav.
quickNav.find('li a').on('click', function() {
quickNav.removeClass('active');
});
// Clicking outside the quick-nav closes it.
$('body').on('click', function() {
quickNav.removeClass('active');
});
}
});