1(function ($) {
2 "use strict";
3
4 jQuery(window).on('load', function () {
5
6 var progressPath = document.querySelector('.progress-wrap path');
7 var pathLength = progressPath.getTotalLength();
8
9 progressPath.style.transition = progressPath.style.WebkitTransition = 'none';
10 progressPath.style.strokeDasharray = pathLength + ' ' + pathLength;
11 progressPath.style.strokeDashoffset = pathLength;
12 progressPath.getBoundingClientRect();
13 progressPath.style.transition = progressPath.style.WebkitTransition = 'stroke-dashoffset 10ms linear';
14
15 var updateProgress = function () {
16 var scroll = jQuery(window).scrollTop();
17 var height = jQuery(document).height() - jQuery(window).height();
18 var progress = pathLength - (scroll * pathLength / height);
19 progressPath.style.strokeDashoffset = progress;
20 };
21
22 updateProgress();
23
24 jQuery(window).scroll(updateProgress);
25
26 });
27
28})(jQuery);