/*global jquery */
/*jshint multistr:true browser:true */
/*!
* 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( $ ){

  "use strict";

  $.fn.fitvids = function( options ) {
    var settings = {
      customselector: null
    };

    if(!document.getelementbyid('fit-vids-style')) {

      var div = document.createelement('div'),
          ref = document.getelementsbytagname('base')[0] || document.getelementsbytagname('script')[0];

      div.classname = 'fit-vids-style';
      div.id = 'fit-vids-style';
      div.style.display = 'none';
      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>';

      ref.parentnode.insertbefore(div,ref);

    }

    if ( options ) {
      $.extend( settings, options );
    }

    return this.each(function(){
      var selectors = [
        "iframe[src*='player.vimeo.com']",
        "iframe[src*='youtube.com']",
        "iframe[src*='youtube-nocookie.com']",
        "iframe[src*='kickstarter.com'][src*='video.html']",
        "object",
        "embed"
      ];

      if (settings.customselector) {
        selectors.push(settings.customselector);
      }

      var $allvideos = $(this).find(selectors.join(','));
      $allvideos = $allvideos.not("object object"); // swfobj conflict patch

      $allvideos.each(function(){
        var $this = $(this);
        if (this.tagname.tolowercase() === 'embed' && $this.parent('object').length || $this.parent('.fluid-width-video-wrapper').length) { return; }
        var height = ( this.tagname.tolowercase() === 'object' || ($this.attr('height') && !isnan(parseint($this.attr('height'), 10))) ) ? parseint($this.attr('height'), 10) : $this.height(),
            width = !isnan(parseint($this.attr('width'), 10)) ? parseint($this.attr('width'), 10) : $this.width(),
            aspectratio = height / width;
        if(!$this.attr('id')){
          var videoid = 'fitvid' + math.floor(math.random()*999999);
          $this.attr('id', videoid);
        }
        $this.wrap('<div class="fluid-width-video-wrapper"></div>').parent('.fluid-width-video-wrapper').css('padding-top', (aspectratio * 100)+"%");
        $this.removeattr('height').removeattr('width');
      });
    });
  };
})( jquery );