/**
*
* Original download was from: https://github.com/jsillitoe/jquery-condense-plugin but we realized that it had an infinite loop bug in 
* certain circunstances.  We then downloaded THIS version from https://github.com/mfollett/jquery-condense-plugin/tree/ on 12/10/2011
* and added our "CPL hacks" below to prevent table cell resize flickering on load in some browsers.
*
* Condense 0.1 - Condense and expand text heavy elements
*
* (c) 2008 Joseph Sillitoe
* Dual licensed under the MIT License (MIT-LICENSE) and GPL License,version 2 (GPL-LICENSE).
*/
 
/*
* jQuery plugin
*
* usage:
*
* $(document).ready(function(){
* $('#example1').condense();
* });
*
* Options:
* condensedLength: Target length of condensed element. Default: 200
* minTrail: Minimun length of the trailing text. Default: 20
* delim: Delimiter used for finding the break point. Default: " " - {space}
* moreText: Text used for the more control. Default: [more]
* lessText: Text used for the less control. Default: [less]
* ellipsis: Text added to condensed element. Default: ( ... )
* moreSpeed: Animation Speed for expanding. Default: "normal"		- essentially hacked out by CPL
* lessSpeed: Animation Speed for condensing. Default: "normal"		- essentially hacked out by CPL
* easing: Easing algorith. Default: "linear"
*/

(function($) {

  // plugin definition
  $.fn.condense = function(options) {
    
    var opts = $.extend({}, $.fn.condense.defaults, options); // build main options before element iteration

    $.metadata ? debug('metadata plugin detected', opts) : debug('metadata plugin not present', opts);//detect the metadata plugin?

    // iterate each matched element
    return this.each(function() {
		$this = $(this);

      // support metadata plugin (v2.0)
		var o = $.metadata ? $.extend({}, opts, $this.metadata()) : opts; // build element specific options
     
      debug('Condensing ['+$this.text().length+']: '+$this.text(), opts);

      $this.wrap('<span class="condensedParent"></span>');
      var $par = $this.parent();
      
      var clone = cloneCondensed($this,o);

      if (clone){

        clone.addClass(o.condensedClass);
        $this.addClass(o.expandedClass);

        // id attribute switch. make sure that the visible elem keeps the original id (if set).
        $this.attr('id') ? $this.attr('id','condensed_'+$this.attr('id')) : false;

        var controlMore = " <span class='condense_control condense_control_more' style='cursor:pointer;'>"+o.moreText+"</span>";
        var controlLess = " <span class='condense_control condense_control_less' style='cursor:pointer;'>"+o.lessText+"</span>";
        clone.append(o.ellipsis + controlMore);
        $par.append(clone);
        $this.append(controlLess).hide();

        $('.condense_control_more',clone).click(function(){
          debug('moreControl clicked.', opts);
          $par.trigger(o.moreEvent);
        });

        $('.condense_control_less',$this).click(function(){
          debug('lessControl clicked.', opts);
          $par.trigger(o.lessEvent);
        });

        var isExpanded = false;
        $par.bind(o.lessEvent, function() {
          if(isExpanded) {
            triggerCondense($par,o)
            isExpanded = false;
          }
        });
        $par.bind(o.moreEvent, function() {
          if(! isExpanded) {
            triggerExpand($par,o)
            isExpanded = true;
          }
        });
      }
	});
  };

  function cloneCondensed(elem, opts){
    // Try to clone and condense the element. if not possible because of the length/minTrail options, return false.
    // also, dont count tag declarations as part of the text length.
    // check the length of the text first, return false if too short.
    if ($.trim(elem.text()).length <= opts.condensedLength + opts.minTrail){
      debug('element too short: skipping.', opts);
      return false;
    }

    var fullbody = $.trim(elem.html());
    var fulltext = $.trim(elem.text());
    var delim = opts.delim;
    var clone = elem.clone();
    var delta = 0;

    do {
      // find the location of the next potential break-point.
      var loc = findDelimiterLocation(fullbody, opts.delim, (opts.condensedLength + delta));
      //set the html of the clone to the substring html of the original
      clone.html($.trim(fullbody.substring(0,(loc+1))));
      var cloneTextLength = clone.text().length;
      var cloneHtmlLength = clone.html().length;
      delta = clone.html().length - cloneTextLength;
      debug ("condensing... [html-length:"+cloneHtmlLength+" text-length:"+cloneTextLength+" delta: "+delta+" break-point: "+loc+"]");
    //is the length of the clone text long enough?
    }while(delta && clone.text().length < opts.condensedLength )

    // after skipping ahead to the delimiter, do we still have enough trailing text?
    if ((fulltext.length - cloneTextLength) < opts.minTrail){
      debug('not enough trailing text: skipping.', opts);
      return false;
    }

    debug('clone condensed. [text-length:'+cloneTextLength+']', opts);
    return clone;
  }


  function findDelimiterLocation(html, delim, startpos){
    // find the location inside the html of the delimiter, starting at the specified length.
    var foundDelim = false;
    var loc = startpos;
    do {
      var loc = html.indexOf(delim, loc);
      if (loc < 0){
        debug ("No delimiter found.");
        return html.length;
      } // if there is no delimiter found, just return the length of the entire html string.
      foundDelim = true;
      while (isInsideTag(html, loc)) {
        // if we are inside a tag, this delim doesn't count. keep looking...
        loc++;
        foundDelim = false;
      }
    }while(!foundDelim)
    debug ("Delimiter found in html at: "+loc);
    return loc;
  }


  function isInsideTag(html, loc){
    return (html.indexOf('>',loc) < html.indexOf('<',loc));
  }


  function getElements(par){
    var orig = par.children().first(); // The original element will be the first element in the parent
    var condensed = orig.next(); // The condensed element will be the original immediate next sibling.
    return {orig: orig, condensed: condensed};
  }

  function triggerCondense(par, opts){
    var elements = getElements(par);
    elements.condensed.show();
    var con_w = elements.condensed.width();
    var con_h = elements.condensed.height();
    elements.condensed.hide(); //briefly flashed the condensed element so we can get the target width/height
    var orig_w = elements.orig.width();
    var orig_h = elements.orig.height();
    //elements.orig.animate({height:con_h, width:con_w, opacity: 1}, opts.lessSpeed, opts.easing,	//ORIGINAL CODE
    elements.orig.animate({height:con_h, width:con_w, opacity: 1}, 0 ,opts.easing,					//CPL hack
      function(){
        elements.orig.height(orig_h).width(orig_w).hide();
        elements.condensed.show();
      });
  }


  function triggerExpand(par, opts){
    var elements = getElements(par);
    elements.orig.show();
    var orig_w = elements.orig.width();
    var orig_h = elements.orig.height();
    elements.orig.width(elements.condensed.width()+"px").height(elements.condensed.height()+"px");
    elements.condensed.hide();
    //elements.orig.animate({height:orig_h, width:orig_w, opacity: 1}, opts.moreSpeed, opts.easing);	//ORIGINAL CODE
    elements.orig.animate({height:orig_h, width:orig_w, opacity: 1}, 0, opts.easing);					//CPL hack
    if(elements.condensed.attr('id')){
      var idAttr = elements.condensed.attr('id');
      elements.condensed.attr('id','condensed_'+idAttr);
      elements.orig.attr('id',idAttr);
    }
  }


  /**
  * private function for debugging
  */
  function debug(str, opts) {
      if (opts && opts.debug && window.console && window.console.log){window.console.log(str);}
  };


  // plugin defaults
  $.fn.condense.defaults = {
    condensedLength: 200,
    minTrail: 20,
    delim: " ",
    /* ORIGINAL
    moreText: "[more]",
    lessText: "[less]",
    ellipsis: " ( ... )",
    */
    moreText: 'Show more&hellip;',		//CPL hack
    lessText: 'Show less&hellip;',		//CPL hack
    ellipsis: '',						//CPL hack
    moreSpeed: "normal",
    lessSpeed: "normal",
    easing: "linear",
    moreEvent: 'expand.condensePlugin',
    lessEvent: 'condense.condensePlugin',
    condensedClass: '',
    expandedClass: '',
    eventProxy: undefined,
    debug: true
  };

})(jQuery);