/*global jQuery */
/*! 
* FitVids 1.0
*
* Copyright 2011, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com
* Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/
* Released under the WTFPL license - http://sam.zoy.org/wtfpl/
*
* Date: Thu Sept 01 18:00:00 2011 -0500
*/

(function( $ ){

  $.fn.fitVids = function( options ) {
      var settings = {
        customSelector: null
      }
      
      var div = document.createElement('div');
      div.className = 'fit-vids-style';
      div.innerHTML = '&shy;<style>         \
        .fluid-width-video-wrapper {        \
           width: 100%;                     \
           position: relative;              \
           padding: 0;                      \
        }                                   \
                                            \
        .fluid-width-video-wrapper iframe,  \
        .fluid-width-video-wrapper object,  \
        .fluid-width-video-wrapper embed {  \
           position: absolute;              \
           top: 0;                          \
           left: 0;                         \
           width: 100%;                     \
           height: 100%;                    \
        }                                   \
      </style>';
                        
      $('body').prepend(div);
      
      if ( options ) { 
        $.extend( settings, options );
      }

      if ($.browser.msie && parseInt($.browser.version) == 7) {
        //USED FOR IE7 since it's IE7 and special
        return this.each(function(){
          var selectors = [
            "iframe[src^='http://player.vimeo.com']", 
            "iframe[src^='http://www.youtube.com']", 
            "iframe[src^='http://www.kickstarter.com']", 
            "object", 
            "embed"
          ];
          
          if (settings.customSelector) {
            selectors.push(settings.customSelector);
          }
          
          var $allVideos = $(this).find(selectors.join(','));

          $allVideos.each(function(){
            var $this = $(this), 
                height = this.tagName == 'OBJECT' ? $this.attr('height') : $this.height(),
                aspectRatio = height / $this.width();
            $this.wrap('<div class="fluid-width-video-wrapper"></div>').parent('.fluid-width-video-wrapper').css('height', "320px");
            $this.removeAttr('height').removeAttr('width');
          });
        });
      } else {
        return this.each(function(){
          var selectors = [
            "iframe[src^='http://player.vimeo.com']", 
            "iframe[src^='http://www.youtube.com']", 
            "iframe[src^='http://www.kickstarter.com']", 
            "object", 
            "embed"
          ];
          
          if (settings.customSelector) {
            selectors.push(settings.customSelector);
          }
          
          var $allVideos = $(this).find(selectors.join(','));

          $allVideos.each(function(){
            var $this = $(this), 
                height = this.tagName == 'OBJECT' ? $this.attr('height') : $this.height(),
                aspectRatio = height / $this.width();
            $this.wrap('<div class="fluid-width-video-wrapper" />').parent('.fluid-width-video-wrapper').css('padding-top', (aspectRatio * 100)+"%");
            $this.removeAttr('height').removeAttr('width');
          });
        });
    }
  }
})( jQuery );