/*
 * jNice
 * version: 1.0 (11.26.08)
 * by Sean Mooney (sean@whitespace-creative.com) 
 * Examples at: http://www.whitespace-creative.com/jquery/jnice/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * To Use: place in the head 
 *  <link href="inc/style/jNice.css" rel="stylesheet" type="text/css" />
 *  <script type="text/javascript" src="inc/js/jquery.jNice.js"></script>
 *
 * And apply the jNice class to the form you want to style
 *
 * To Do: Add textareas, Add File upload
 *
 ******************************************** */
(function($){
	$.fn.jNice = function(options){
		var self = this;
		var safari = $.browser.safari; /* We need to check for safari to fix the input:text problem */
		/* Apply document listener */
		$(document).mousedown(checkExternalClick);
		/* each form */
		return this.each(function(){
			//$('input:submit, input:reset, input:button', this).each(ButtonAdd);
			//$('button').focus(function(){ $(this).addClass('jNiceFocus')}).blur(function(){ $(this).removeClass('jNiceFocus')});
			//$('input:text:visible, input:password', this).each(TextAdd);
			/* If this is safari we need to add an extra class */
			//if (safari){$('.jNiceInputWrapper').each(function(){$(this).addClass('jNiceSafari').find('input').css('width', $(this).width()+11);});}
			//$('input:checkbox', this).each(CheckAdd);
			//$('input:radio', this).each(RadioAdd);
			$('select', this).each(function(index){ SelectAdd(this, index); });
			/* Add a new handler for the reset action */
			$(this).bind('reset',function(){var action = function(){ Reset(this); }; window.setTimeout(action, 10); });
			$('.jNiceHidden').css({opacity:0});
		});		
	};/* End the Plugin */

	var Reset = function(form){
		var sel;
		$('.jNiceSelectWrapper select', form).each(function(){sel = (this.selectedIndex<0) ? 0 : this.selectedIndex; $('ul', $(this).parent()).each(function(){$('a:eq('+ sel +')', this).click();});});
	};

	
	/* Hide all open selects */
	var SelectHide = function(){
			$('.jNiceSelectWrapper ul:visible').hide();
	};

	/* Check for an external click */
	var checkExternalClick = function(event) {
		if ($(event.target).parents('.jNiceSelectWrapper').length === 0) { SelectHide(); }
	};

	var SelectAdd = function(element, index){
		var $select = $(element);
		index = index || $select.css('zIndex')*1;
		index = (index) ? index : 0;
		/* First thing we do is Wrap it */
		$select.wrap($('<div class="jNiceWrapper"></div>').css({zIndex: 100-index}));
		var width = $select.outerWidth()-2; /*lil bit of modding here*/

		$select.addClass('jNiceHidden').after('<div class="jNiceSelectWrapper"><div><em class="jNiceSelectText"></em><em class="jNiceSelectOpen"></em></div><ul></ul></div>');
		var $wrapper = $(element).siblings('.jNiceSelectWrapper').css({width: width +'px'});
		$('.jNiceSelectText, .jNiceSelectWrapper ul', $wrapper).width( width - $('.jNiceSelectOpen', $wrapper).width());
		/* IF IE 6 */
		if ($.browser.msie && jQuery.browser.version < 7) {
			$select.after($('<iframe src="javascript:\'\';" marginwidth="0" marginheight="0" align="bottom" scrolling="no" tabIndex="-1" frameborder="0"></iframe>').css({ height: $select.height()+4 +'px' }));
		}
		/* Now we add the options */
		SelectUpdate(element);
		/* Apply the click handler to the Open */
		$('div', $wrapper).click(function(){
			var $ul = $(this).siblings('ul');
			if ($ul.css('display')=='none'){ SelectHide(); } /* Check if box is already open to still allow toggle, but close all other selects */
			$ul.slideToggle();
			var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
			$ul.animate({scrollTop: offSet});
			return false;
		});
		/* Add the key listener */
		$select.keydown(function(e){
			var selectedIndex = this.selectedIndex;
			switch(e.keyCode){
				case 40: /* Down */
					if (selectedIndex < this.options.length - 1){ selectedIndex+=1; }
					break;
				case 38: /* Up */
					if (selectedIndex > 0){ selectedIndex-=1; }
					break;
				default:
					return;
					break;
			}
			$('ul a', $wrapper).removeClass('selected').eq(selectedIndex).addClass('selected');
			$('em:eq(0)', $wrapper).html($('option:eq('+ selectedIndex +')', $select).attr('selected', 'selected').text());
			return false;
		}).focus(function(){ $wrapper.addClass('jNiceFocus'); }).blur(function(){ $wrapper.removeClass('jNiceFocus'); });
	};

	var SelectUpdate = function(element){
		var $select = $(element);
		var $wrapper = $select.siblings('.jNiceSelectWrapper');
		var $ul = $wrapper.find('ul').find('li').remove().end().hide();
		$('option', $select).each(function(i){
			$ul.append('<li><a href="#" index="'+ i +'">'+ this.text +'</a></li>');
		});
		/* Add click handler to the a */
		$ul.find('a').click(function(){
			$('a.selected', $wrapper).removeClass('selected');
			$(this).addClass('selected');	
			/* Fire the onchange event */
			if ($select[0].selectedIndex != $(this).attr('index') && $select[0].onchange) { $select[0].selectedIndex = $(this).attr('index'); $select[0].onchange(); }
			$select[0].selectedIndex = $(this).attr('index');
			$('em:eq(0)', $wrapper).html($(this).html());
			$ul.hide();
			return false;
		});
		/* Set the defalut */
		$('a:eq('+ $select[0].selectedIndex +')', $ul).click();
	};

	var SelectRemove = function(element){
		var zIndex = $(element).siblings('.jNiceSelectWrapper').css('zIndex');
		$(element).css({zIndex: zIndex}).removeClass('jNiceHidden');
		$(element).siblings('.jNiceSelectWrapper').remove();
	};

	/* Utilities */
	$.jNice = {
			SelectAdd : function(element, index){ 	SelectAdd(element, index); },
			SelectRemove : function(element){ SelectRemove(element); },
			SelectUpdate : function(element){ SelectUpdate(element); }
	};/* End Utilities */

	/* Automatically apply to any forms with class jNice */
	$(function(){$('form.jNice').jNice();	});
})(jQuery);