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   1  /*global jQuery */
   2  /*jshint multistr:true browser:true */
   3  /*!
   4  * FitVids 1.0
   5  *
   6  * Copyright 2011, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com
   7  * Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/
   8  * Released under the WTFPL license - http://sam.zoy.org/wtfpl/
   9  *
  10  * Date: Thu Sept 01 18:00:00 2011 -0500
  11  */
  12  
  13  (function( $ ){
  14  
  15    "use strict";
  16  
  17    $.fn.fitVids = function( options ) {
  18      var settings = {
  19        customSelector: null
  20      };
  21  
  22      var div = document.createElement('div'),
  23          ref = document.getElementsByTagName('base')[0] || document.getElementsByTagName('script')[0];
  24  
  25      div.className = 'fit-vids-style';
  26      div.innerHTML = '&shy;<style>         \
  27        .fluid-width-video-wrapper {        \
  28           width: 100%;                     \
  29           position: relative;              \
  30           padding: 0;                      \
  31        }                                   \
  32                                            \
  33        .fluid-width-video-wrapper iframe,  \
  34        .fluid-width-video-wrapper object,  \
  35        .fluid-width-video-wrapper embed {  \
  36           position: absolute;              \
  37           top: 0;                          \
  38           left: 0;                         \
  39           width: 100%;                     \
  40           height: 100%;                    \
  41        }                                   \
  42      </style>';
  43  
  44      ref.parentNode.insertBefore(div,ref);
  45  
  46      if ( options ) {
  47        $.extend( settings, options );
  48      }
  49  
  50      return this.each(function(){
  51        var selectors = [
  52          "iframe[src*='player.vimeo.com']",
  53          "iframe[src*='www.youtube.com']",
  54          "iframe[src*='www.kickstarter.com']",
  55          "object",
  56          "embed"
  57        ];
  58  
  59        if (settings.customSelector) {
  60          selectors.push(settings.customSelector);
  61        }
  62  
  63        var $allVideos = $(this).find(selectors.join(','));
  64  
  65        $allVideos.each(function(){
  66          var $this = $(this);
  67          if (this.tagName.toLowerCase() === 'embed' && $this.parent('object').length || $this.parent('.fluid-width-video-wrapper').length) { return; }
  68          var height = ( this.tagName.toLowerCase() === 'object' || ($this.attr('height') && !isNaN(parseInt($this.attr('height'), 10))) ) ? parseInt($this.attr('height'), 10) : $this.height(),
  69              width = !isNaN(parseInt($this.attr('width'), 10)) ? parseInt($this.attr('width'), 10) : $this.width(),
  70              aspectRatio = height / width;
  71          if(!$this.attr('id')){
  72            var videoID = 'fitvid' + Math.floor(Math.random()*999999);
  73            $this.attr('id', videoID);
  74          }
  75          $this.wrap('<div class="fluid-width-video-wrapper"></div>').parent('.fluid-width-video-wrapper').css('padding-top', (aspectRatio * 100)+"%");
  76          $this.removeAttr('height').removeAttr('width');
  77        });
  78      });
  79    };
  80  })( jQuery );