https://www.kaplaninternational.com/modules/custom/core/kaplan_core_common/js/wistia-lazyload.js?tltfkj

1'use strict';
2
3(function(Drupal, $) {
4
5  Drupal.behaviors.wistiaLazyLoad = {
6    attach: function(context, settings) {
7
8      $(once('thumbnail', ".wistia_embed", context)).each(function() {
9
10        let wistiaElement = $(this);
11        if (!wistiaElement.hasClass('wistia_nothumbnail')) {
12
13          $.get(
14            "https://fast.wistia.net/oembed?url=http://home.wistia.com/medias/" + wistiaElement.data("id") + "?embedType=async_popover&videoWidth=558",
15            function (data) {
16
17              wistiaElement.find('.wistia_thumbnail').attr("src", data.thumbnail_url);
18            }
19          );
20        }
21      });
22
23      $(once('lazyload', ".wistia_embed", context)).on('click', function() {
24
25        let wistiaElement = $(this);
26        if (!wistiaElement.hasClass('lazyload-init')) {
27
28          wistiaElement.find('.wistia-play-button').hide();
29
30          let videoId = wistiaElement.data("id");
31          $.getScript('https://fast.wistia.com/assets/external/E-v1.js', function() {
32
33            window.wistiaInit = function(W) {
34
35              setTimeout(function() {
36
37                W.api("wistia-" + videoId).play();
38              }, 100);
39            };
40            wistiaElement.addClass('lazyload-init');
41          });
42        }
43      });
44    }
45  };
46})(Drupal, jQuery);