/*
 * 	 styleSelect - apply style to a select box
 *   (http://www.8stream.com)
 *
 * 	 Copyright (c) 2009 Siim Sindonen, 8STREAM <siim@8stream.com>
 *   Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 *   Requires jQuery version: >= 1.3.2
 * 	 $Version: 1.2.1 | 22.09.2009
 */

(function($){

	$.fn.styleSelect = function(options){

		var tabindex = 1;

		var opts = $.extend({}, $.fn.styleSelect.defaults , options);

		//set tabindex
		$('input,select,textarea,button').each(function() {

			var input = $(this);

			if (!input.attr('tabindex')){

				input.attr('tabindex', tabindex);
				tabindex++;

			}
		});

		return this.each(function(){

			mainSelect = $(this);
			var mainId = mainSelect.attr('name');

			var styledTabIndex = mainSelect.attr('tabindex');

			var date = new Date;
			var selectId = 'selectbox_'+mainId+date.getTime();

			//Hidde select box
			mainSelect.hide();

			//Main container
			var mainContainer = $('<div tabindex="'+styledTabIndex+'"></div>').css({position : 'relative'})
					.addClass(opts.styleClass)
					.attr('id', selectId)
					.insertBefore(mainSelect);

			//Options container
			var subContainer = $('<ul></ul>').css({'position' : 'absolute', 'z-index' : '100'})
					.appendTo($(mainContainer))
					.hide();

			//Generate options list
			var optionsList = "";

			mainSelect.find('option').each(function(res){
			  if ($(this).text() == ''){
			    if (mainSelect.attr('id')){
            var a = document.getElementById(mainSelect.attr('id')).options[res];
            if (a){
              $(this).text(a.title);
            }
          }
        }
				optionsList += '<li id="'+$(this).val()+'"';
				if($(this).attr('class')) optionsList += ' class="'+$(this).attr('class')+'" ';
				optionsList += '>';
				optionsList += '<span style="display: block;"';
				if ($(this).attr('selected')) optionsList += ' class="selected" ';
				optionsList += '>';
				optionsList += $(this).text();
				optionsList += '</span>';
				optionsList += '</li>';

			});

				subContainer.append(optionsList);

				checkSelected(opts.styleClass,opts.optionsWidth);

			//Show otions
			$('#'+selectId).click(function(){
				$(this).find('ul').slideToggle(opts.speed);
			});

			//On click
			$('#'+selectId+' li').click(function(){

				doSelection($(this));

			});

			//Keyboard support
			$('#'+selectId).keydown(function(event){

				var active = $(this).find('.selected').parent();

				if (event.keyCode == 40 || event.keyCode == 39 ){ doSelection(active.next()); }
				if (event.keyCode == 37 || event.keyCode == 38 ){ doSelection(active.prev()); }

				if (event.keyCode == 13 || event.keyCode == 0){ $(this).find('ul').slideToggle(opts.speed); }
				if (event.keyCode == 9){ $(this).find('ul').hide(opts.speed); }

			});

			//Do selection
			var doSelection = function(item){

				item.siblings().find("span").removeClass('selected');
				item.find("span").addClass('selected');

				var selectedItem = item.attr('id');

				var realSelector = $('select[name="'+mainId+'"]');
				realSelector.siblings().selected = false;
				realSelector.find('option[value="'+selectedItem+'"]').attr('selected','selected');
				realSelector.trigger(opts.selectTrigger);

				checkSelected(opts.styleClass,opts.optionsWidth);

			}

			$('#'+selectId).click(function(e) {
				e.stopPropagation();
			});

			$(document).click(function() {
				$('#'+selectId+' ul').hide();
			});

			});
		}

		//Selected items check
		function checkSelected(mainClass,mainWidth){

				$('.'+mainClass).each(function(){

					var elementList = $(this).find('ul');

					$(this).find('span').each(function(){

						var spanClass = $(this).attr("class");
						if (spanClass == "passiveSelect" || spanClass == "activeSelect") $(this).remove();

					});

					var selectedName = $(this).find('.selected');

					$('<span></span>').text(selectedName.text())
							.attr('id', selectedName.parent().attr('id'))
							.addClass('passiveSelect')
							.appendTo($(this));

					if (mainWidth === 0){
						$(this).css({'width' :  elementList.width()});
					}

				});

				$('.'+mainClass+' span').each(function(){
					if ($(this).attr('id')){
						$(this).removeClass();
						$(this).addClass('activeSelect');
					}
				});
		}

		$.fn.styleSelect.defaults = {

			//optionsTop: '26px',
			//optionsLeft: '0px',
			//optionsWidth: 0,
			styleClass: 'selectMenu',
			speed: 0,
			selectTrigger: 'change'

		};

})(jQuery);