https://starworldnews.co/wp-content/themes/starworldnews/js/fluidvids.js

1/*! Fluidvids v2.2.0 | (c) 2014 @toddmotto | github.com/toddmotto/fluidvids */
2(function (root, factory) {
3  if (typeof define === 'function' && define.amd) {
4    define(factory);
5  } else if (typeof exports === 'object') {
6    module.exports = factory;
7  } else {
8    root.fluidvids = factory();
9  }
10})(this, function () {
11
12  'use strict';
13
14  var exports = {
15    selector: 'iframe',
16    players: ['www.youtube.com', 'player.vimeo.com']
17  };
18
19  var head = document.head || document.getElementsByTagName('head')[0];
20  var css = '.fluidvids{width:100%;position:relative;}' +
21            '.fluidvids iframe{position:absolute;top:0px;left:0px;width:100%;height:100%;}';
22
23  var _matches = function (source) {
24    var regexp = new RegExp('^(https?:)?\/\/(?:' + exports.players.join('|') + ').*$', 'i');
25    return regexp.test(source);
26  };
27
28  var _render = function (elem) {
29    if (!!elem.getAttribute('data-fluidvids')) {
30      return;
31    }
32    var wrap = document.createElement('div');
33    var ratio = (parseInt(elem.height ? elem.height : elem.offsetHeight, 10) / (parseInt(elem.width ? elem.width : elem.offsetWidth, 10)) * 100);
34    elem.parentNode.insertBefore(wrap, elem);
35    elem.setAttribute('data-fluidvids', 'loaded');
36    wrap.className += 'fluidvids';
37    wrap.style.paddingTop = ratio + '%';
38    wrap.appendChild(elem);
39  };
40
41  var _addStyles = function () {
42    var div = document.createElement('div');
43    div.innerHTML = '<p>x</p><style>' + css + '</style>';
44    head.appendChild(div.childNodes[1]);
45  };
46
47  exports.apply = function () {
48    var nodes = document.querySelectorAll(exports.selector);
49    for (var i = 0; i < nodes.length; i++) {
50      var node = nodes[i];
51      if (_matches(node.src)) {
52        _render(node);
53      }
54    }
55  };
56
57  exports.init = function (obj) {
58    for (var key in obj) {
59      exports[key] = obj[key];
60    }
61    exports.apply();
62    _addStyles();
63  };
64
65  return exports;
66
67});