/*
	Simple AutoComplete plugin for jQuery
	Author: Wellington Ribeiro
	Version: 1.0.0 (14/03/2010 12:02)
	Version: 1.1.0 (04/05/2010 13:05) - resolve problemas do ie6 sem necessidade de hacks, fecha o autocomplete ao clicar fora, insere automaticamente o atributo para não permitir o autocomplete do navegador.
	Copyright (c) 2008-2010 IdealMind ( www.idealmind.com.br )
	Licensed under the GPL license (http://blog.idealmind.com.br/projetos/simple-autocomplete-jquery-plugin/#license)

 * 
 * $('selector').simpleAutoComplete("ajax_query.php", {
 *	identifier: 'estado',
 *	extraParamFromInput: '#extra',
 *	attrCallBack: 'rel',
 *	autoCompleteClassName: 'autocomplete',
 *	selectedClassName: 'sel'
 * },calbackFunction);
 * 
 */

(function($){
	$.fn.extend(
	{
		simpleAutoComplete: function( page, options, callback )
		{
			if(typeof(page) == "undefined" )
			{
				alert("simpleAutoComplete: Vous devez spécifier la page qui va traiter la requête.");
			}
			
			var classAC = 'autocomplete';
			var selClass = 'sel';
			var attrCB = 'rel';
			var minLength = 0;
			var thisElement = $(this);

			$(":not(div." + classAC + ")").click(function(){
				$("div." + classAC).remove();
			});
			
			thisElement.attr("autocomplete","off");
			
			thisElement.keyup(function( ev )
			{
				var getOptions = { query: thisElement.val() }
				
				if( typeof(options) == "object" )
				{
					classAC = typeof( options.autoCompleteClassName ) != "undefined" ? options.autoCompleteClassName : classAC;
					selClass = typeof( options.selectedClassName ) != "undefined" ? options.selectedClassName : selClass;
					minLength = typeof( options.minLength ) != "undefined" ? options.minLength : minLength;
					
					attrCB = typeof( options.attrCallBack ) != "undefined" ? options.attrCallBack : attrCB;
					if( typeof( options.identifier ) == "string" )
					getOptions.identifier = options.identifier;

					if( typeof( options.extraParamFromInput ) != "undefined" )
					getOptions.extraParam = $( options.extraParamFromInput ).val();
					
				}
        
        if (thisElement.val().length >= minLength)
        {
        
  				kc = ( ( typeof( ev.charCode ) == 'undefined' || ev.charCode === 0 ) ? ev.keyCode : ev.charCode );
  				key = String.fromCharCode(kc);
  
  				//console.log(kc, key, ev );
  
  				if (kc == 27)
  				{
  					$('div.' + classAC).remove();
  				}
  				if (kc == 13)
  				{
  					$('div.' + classAC + ' li.' + selClass).trigger('click');
  				}
  				if (key.match(/[a-zA-Z0-9_\- ]/) || kc == 8 || kc == 46)
  				{
  					$.get(page, getOptions, function(r)
  					{
  						$('div.' + classAC).remove();
  						autoCompleteList = $('<div>').addClass(classAC).html(r);
  						if (r != '')
  						{
  							autoCompleteList.insertAfter(thisElement);
  							
  							var position = thisElement.position();
  							var height = thisElement.height();
  							var width = thisElement.width();
  
  							$('div.' + classAC).css({
  								'top': ( height + position.top + 6 ) + 'px',
  								'left': ( position.left )+'px',
  								'margin': '0px'
  							});
  							
  							$('div.' + classAC + ' ul').css({
  								'margin-left': '0px'
  							});
  							
  							$('div.' + classAC + ' li').each(function( n, el )
  							{
  								el = $(el);
  								el.mouseenter(function(){
  									$('div.' + classAC + ' li.' + selClass).removeClass(selClass);
  									$(this).addClass(selClass);
  								});
  								el.click(function()
  								{
  									thisElement.attr('value', el.text());
  
  									if( typeof( callback ) == "function" )
  										callback( el.attr(attrCB).split('_') );
  									
  									$('div.' + classAC).remove();
  									thisElement.focus();
  								});
  							});
  						}
  					});
  				}
  				if (kc == 38 || kc == 40){
  					if ($('div.' + classAC + ' li.' + selClass).length == 0)
  					{
  						if (kc == 38)
  						{
  							$($('div.' + classAC + ' li')[$('div.' + classAC + ' li').length - 1]).addClass(selClass);
  						} else {
  							$($('div.' + classAC + ' li')[0]).addClass(selClass);
  						}
  					}
  					else
  					{
  						sel = false;
  						$('div.' + classAC + ' li').each(function(n, el)
  						{
  							el = $(el);
  							if ( !sel && el.hasClass(selClass) )
  							{
  							el.removeClass(selClass);
  							$($('div.' + classAC + ' li')[(kc == 38 ? (n - 1) : (n + 1))]).addClass(selClass);
  							sel = true;
  							}
  						});
  					}
  				}
  				if (thisElement.val() == '')
  				{
  					$('div.' + classAC).remove();
  				}
				}
			});
		}
	});
})(jQuery);