https://richardtaittinger.com/wp-content/themes/rtg/javascripts/jquery.fitvids.js

1/*global jQuery */
2/*! 
3* FitVids 1.0
4*
5* Copyright 2011, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com
6* Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/
7* Released under the WTFPL license - http://sam.zoy.org/wtfpl/
8*
9* Date: Thu Sept 01 18:00:00 2011 -0500
10*/
11
12(function( $ ){
13
14  $.fn.fitVids = function( options ) {
15    var settings = {
16      customSelector: null
17    }
18    
19    var div = document.createElement('div'),
20        ref = document.getElementsByTagName('base')[0] || document.getElementsByTagName('script')[0];
21        
22  	div.className = 'fit-vids-style';
23    div.innerHTML = '&shy;<style>         \
24      .fluid-width-video-wrapper {        \
25         width: 100%;                     \
26         position: relative;              \
27         padding: 0;                      \
28      }                                   \
29                                          \
30      .fluid-width-video-wrapper iframe,  \
31      .fluid-width-video-wrapper object,  \
32      .fluid-width-video-wrapper embed {  \
33         position: absolute;              \
34         top: 0;                          \
35         left: 0;                         \
36         width: 100%;                     \
37         height: 100%;                    \
38      }                                   \
39    </style>';
40                      
41    ref.parentNode.insertBefore(div,ref);
42    
43    if ( options ) { 
44      $.extend( settings, options );
45    }
46    
47    return this.each(function(){
48      var selectors = [
49        "iframe[src^='http://player.vimeo.com']", 
50        "iframe[src^='http://www.youtube.com']", 
51        "iframe[src^='http://www.kickstarter.com']", 
52        "object", 
53        "embed"
54      ];
55      
56      if (settings.customSelector) {
57        selectors.push(settings.customSelector);
58      }
59      
60      var $allVideos = $(this).find(selectors.join(','));
61
62      $allVideos.each(function(){
63        var $this = $(this), 
64            height = this.tagName == 'OBJECT' ? $this.attr('height') : $this.height(),
65            aspectRatio = height / $this.width();
66        $this.wrap('<div class="fluid-width-video-wrapper" />').parent('.fluid-width-video-wrapper').css('padding-top', (aspectRatio * 100)+"%");
67        $this.removeAttr('height').removeAttr('width');
68      });
69    });
70  
71  }
72})( jQuery );