/*
 ### jQuery Star Rating Plugin v2.2 - 2008-04-08 ###
 By Diego A, http://www.fyneworks.com, diego@fyneworks.com
 - 'read only' feature by by Keith Wood, http://keith-wood.name/, kbwood@virginbroadband.com.au
 
 Project: http://plugins.jquery.com/project/MultipleFriendlyStarRating
 Website: http://www.fyneworks.com/jquery/star-rating/
 
 This is a modified version of the star rating plugin from:
 http://www.phpletter.com/Demo/Jquery-Star-Rating-Plugin/
*/
// ORIGINAL COMMENTS:
/*************************************************
 This is hacked version of star rating created by <a href="http://php.scripts.psu.edu/rja171/widgets/rating.php">Ritesh Agrawal</a>
 It thansform a set of radio type input elements to star rating type and remain the radio element name and value,
 so could be integrated with your form. It acts as a normal radio button.
 modified by : Logan Cai (cailongqun[at]yahoo.com.cn)
 website:www.phpletter.com
************************************************/


/*# AVOID COLLISIONS #*/
;if(jQuery) (function($){
/*# AVOID COLLISIONS #*/

// default settings
$.rating = {
 cancel: 'Cancel Rating',   // advisory title for the 'cancel' link
 cancelValue: '',           // value to submit when user click the 'cancel' link
 split: 0,                  // split the star into how many parts?
 
 //NB.: These don't need to be defined (can be undefined/null) so let's save some code!
 //half:     true,         // just a shortcut to settings.split = 2
 //required: false,         // disables the 'cancel' button so user can only select one of the specified values
 //readOnly: false,         // disable rating plugin interaction/ values cannot be changed
 //focus:    function(){},  // executed when stars are focused
 //blur:     function(){},  // executed when stars are focused
 //callback: function(){},  // executed when a star is clicked
 
 // required properties:
 groups: {},// allows multiple star ratings on one page
 event: {// plugin event handlers
  fill: function(n, el, settings, state){ // fill to the current mouse position.
		 //if(console) console.log(['fill', $(el), $(el).prevAll('.star_group_'+n), arguments]);
   this.drain(n);
   $(el).prevAll('.star_group_'+n).andSelf().addClass('star_'+(state || 'hover'));
   // focus handler, as requested by focusdigital.co.uk
   var lnk = $(el).children('a'); val = lnk.text();
   if(settings.focus) settings.focus.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
  },
  drain: function(n, el, settings) { // drain all the stars.
		 //if(console) console.log(['drain', $(el), $(el).prevAll('.star_group_'+n), arguments]);
   $.rating.groups[n].valueElem.siblings('.star_group_'+n).removeClass('star_on').removeClass('star_hover');
  },
  reset: function(n, el, settings){ // Reset the stars to the default index.
   if(!$($.rating.groups[n].current).is('.cancel'))
    $($.rating.groups[n].current).prevAll('.star_group_'+n).andSelf().addClass('star_on');
   // blur handler, as requested by focusdigital.co.uk
   var lnk = $(el).children('a'); val = lnk.text();
   if(settings.blur) settings.blur.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
  },
  click: function(n, el, settings){ // Selected a star or cancelled
   $.rating.groups[n].current = el;
   var lnk = $(el).children('a'); val = lnk.text();
   // Set value
   $.rating.groups[n].valueElem.val(val);
   // Update display
   $.rating.event.drain(n, el, settings);
   $.rating.event.reset(n, el, settings);
   // click callback, as requested here: http://plugins.jquery.com/node/1655
   if(settings.callback) settings.callback.apply($.rating.groups[n].valueElem[0], [val, lnk[0]]);
  }      
 }// plugin events
};

$.fn.rating = function(instanceSettings){
 if(this.length==0) return this; // quick fail
 
 instanceSettings = $.extend(
  {}/* new object */,
  $.rating/* global settings */,
  instanceSettings || {} /* just-in-time settings */
 );
 
 // loop through each matched element
 this.each(function(i){
  
  var settings = $.extend(
   {}/* new object */,
   instanceSettings || {} /* current call settings */,
   ($.metadata? $(this).metadata(): ($.meta?$(this).data():null)) || {} /* metadata settings */
  );
  
  ////if(console) console.log([this.name, settings.half, settings.split], '#');
  
  // grouping:
  var n = this.name;
  if(!$.rating.groups[n]) $.rating.groups[n] = {count: 0};
  i = $.rating.groups[n].count; $.rating.groups[n].count++;
  
  // Accept readOnly setting from 'disabled' property
  $.rating.groups[n].readOnly = $.rating.groups[n].readOnly || settings.readOnly || $(this).attr('disabled');
  
  // Things to do with the first element...
  if(i == 0){
   // Create value element (disabled if readOnly)
   $.rating.groups[n].valueElem = $('<input type="hidden" name="' + n + '" value=""' + (settings.readOnly ? ' disabled="disabled"' : '') + '>');
   // Insert value element into form
   $(this).before($.rating.groups[n].valueElem);
			//
   
   if($.rating.groups[n].readOnly || settings.required){
    // DO NOT display 'cancel' button
   }
   else{
    // Display 'cancel' button
    $(this).before(
     $('<div class="cancel"><a title="' + settings.cancel + '">' + settings.cancelValue + '</a></div>')
     .mouseover(function(){ $.rating.event.drain(n, this, settings); $(this).addClass('star_on'); })
     .mouseout(function(){ $.rating.event.reset(n, this, settings); $(this).removeClass('star_on'); })
     .click(function(){ $.rating.event.click(n, this, settings); })
    );
   }
  }; // if (i == 0) (first element)
  
  // insert rating option right after preview element
  eStar = $('<div class="star"><a title="' + (this.title || this.value) + '">' + this.value + '</a></div>');
  $(this).after(eStar);
  
  // Half-stars?
  if(settings.half) settings.split = 2;
  
  // Prepare division settings
  if(typeof settings.split=='number' && settings.split>0){
   var spi = (i % settings.split), spw = Math.floor($(eStar).width()/settings.split);
   $(eStar)
   // restrict star's width and hide overflow (already in CSS)
   .width(spw)
   // move the star left by using a negative margin
   // this is work-around to IE's stupid box model (position:relative doesn't work)
   .find('a').css({ 'margin-left':'-'+ (spi*spw) +'px' })
  };
  
		// Remember group name so controls within the same container don't get mixed up
  $(eStar).addClass('star_group_'+n)
  
		// readOnly?
  if($.rating.groups[n].readOnly){
   // Mark star as readOnly so user can customize display
   $(eStar)
   .addClass('star_readonly');
   //alert([this.name,this.value,this.checked].join('\n'));
  }
  else{
   $(eStar)
   // Enable hover css effects
   .addClass('star_live')
   // Attach mouse events
   .mouseover(function(){ $.rating.event.drain(n, this, settings); $.rating.event.fill(n, this, settings, 'hover'); })
   .mouseout(function(){ $.rating.event.drain(n, this, settings); $.rating.event.reset(n, this, settings); })
   .click(function(){ $.rating.event.click(n, this, settings); });
  };
  
  ////if(console) console.log(['###', n, this.checked, $.rating.groups[n].initial]);
  if(this.checked) $.rating.groups[n].current = eStar;
  
  //remove this checkbox
  $(this).remove();
  
  // reset display if last element
  if(i + 1 == this.length) $.rating.event.reset(n, this, settings);
 
 }); // each element
  
 // initialize groups...
 for(n in $.rating.groups)//{ not needed, save a byte!
  (function(c, v, n){ if(!c) return;
   $.rating.event.fill(n, c, instanceSettings || {}, 'on');
   $(v).val($(c).children('a').text());
  })
  ($.rating.groups[n].current, $.rating.groups[n].valueElem, n);
 //}; not needed, save a byte!
 
 return this; // don't break the chain...
};



/*# AVOID COLLISIONS #*/
})(jQuery);
/*# AVOID COLLISIONS #*/