/*
 * jQuery selectbox plugin
 *
 * Copyright (c) 2007 Sadri Sahraoui (brainfault.com)
 * Licensed under the GPL license:
 *   http://www.gnu.org/licenses/gpl.html
 *
 * The code is inspired from Autocomplete plugin (http://www.dyve.net/jquery/?autocomplete)
 *
 * Revision: $Id$
 * Version: 0.3
 */
jQuery.fn.extend({
	selectbox: function(options) {
		return this.each(function() {
			new jQuery.SelectBox(this, options);
		});
	}
});

jQuery.SelectBox = function(selectobj, options) {
	
	var opt = options || {};
	opt.inputClass = opt.inputClass || "selectbox";
	opt.containerClass = opt.containerClass || "selectbox-wrapper";
	opt.hoverClass = opt.hoverClass || "selected";
	opt.debug = opt.debug || false;
	
	var elm_id = selectobj.id;
	var active = -1;
	var inFocus = false;
	var hasfocus = 0;
	//jquery object for select element
	var $select = $(selectobj);
	// jquery container object
	var $container = setupContainer(opt);
	//jquery input object 
	var $input = setupInput(opt);
	// hide select and append newly created elements
	$select.hide().before($input).before($container);
	
	init();
	
	$input.click(function()
			{
		        if (!inFocus) {
				  $container.toggle();
				}
			})
			.focus(function(){
			   if ($container.not(':visible')) {
			       inFocus = true;
				   
					  $(this).parent().parent().children('.x-box').css('z-index', '1').end().end()
									  .css('z-index', '900')
				   
			       $container.show();
			   }
			})
			.keydown(function(event) {	   
				switch(event.keyCode) {
					case 38: // up
						event.preventDefault();
						moveSelect(-1);
						break;
					case 40: // down
						event.preventDefault();
						moveSelect(1);
						break;
					//case 9:  // tab 
					case 13: // return
						event.preventDefault(); // seems not working in mac !
						setCurrent();
						hideMe();
						break;
				}
			})
			.blur(function() {
				if ($container.is(':visible') && hasfocus > 0 ) {
					if(opt.debug) console.log('container visible and has focus')
				} else {
					hideMe();	
				}
			});


	function hideMe() { 
		hasfocus = 0;
		$container.hide(); 
	}
	
	function init() {
		$container.append(getSelectOptions()).hide();
		var width = $input.width()
		$container.width(width);
    }
	
	function setupContainer(options) {
		var container = document.createElement("div");
		$container = $(container);
		$container.attr('id', elm_id+'_container');
		$container.addClass(options.containerClass);
		
		return $container;
	}
	
	function setupInput(options) {
		var input = document.createElement("input");
		var $input = $(input);
		$input.attr("id", elm_id+"_input");
		$input.attr("type", "text");
		$input.addClass(options.inputClass);
		$input.attr("autocomplete", "off");
		$input.attr("readonly", "readonly");
		$input.attr("tabIndex", $select.attr("tabindex")); // "I" capital is important for ie
		
		return $input;	
	}
	
	function moveSelect(step) {
		var lis = $("li", $container);
		if (!lis) return;

		active += step;

		if (active < 0) {
			active = 0;
		} else if (active >= lis.size()) {
			active = lis.size() - 1;
		}

		lis.removeClass(opt.hoverClass);

		$(lis[active]).addClass(opt.hoverClass);
	}
	
	function setCurrent() {	
		var li = $("li."+opt.hoverClass, $container).get(0);
		var el = li.id
		
		
		$select.val(el);
		$input.val($(li).html().replace('&amp;', '&'));
		return true;
	}
	
	// select value
	function getCurrentSelected() {
		return $select.val().replace('&amp;', '&');
	}
	
	// input value
	function getCurrentValue() {
		return $input.val().replace('&amp;', '&');
	}
	
	function getSelectOptions() {
		var select_options = new Array();
		var ul = document.createElement('ul');
		$select.children('option').each(function() {
			var li = document.createElement('li');
			li.setAttribute('id', $(this).val().replace('&amp;', '&'));
			li.innerHTML = $(this).html().replace('&amp;', '&');
			if ($(this).is(':selected')) {
				$input.val($(this).html().replace('&amp;', '&'));
				$(li).addClass(opt.hoverClass);
			}
			ul.appendChild(li);
			$(li)
			.mouseover(function(event) {
				hasfocus = 1;
				if (opt.debug) console.log('out on : '+this.id);
				jQuery(event.target, $container).addClass(opt.hoverClass);
			})
			.mouseout(function(event) {
				hasfocus = -1;
				if (opt.debug) console.log('out on : '+this.id);
				jQuery(event.target, $container).removeClass(opt.hoverClass);
			})
			.click(function(event) {
				if (opt.debug) console.log('click on :'+this.id);
				$(this).addClass(opt.hoverClass);
				setCurrent();
				hideMe();
				
				//### CUSTOMS//
				$id = $(this).parents('div:first').attr('id');
				$id = $id.substr(0, $id.lastIndexOf('_'));
				$id_text = $id.substr(0, $id.lastIndexOf('_'));
				$id = $id.substr($id.lastIndexOf('_')+1);
				
				
				if($id-1 > 0 && ($id_text == 'must_have' || $id_text == 'game_tags'))
				{
					$sibling = $('#'+($id_text == 'must_have' ? 'game_tags' : 'must_have')+'_'+$id)
					if($sibling.val() > 0 && $('#'+$id_text+'_'+$id).val() > 0)
					{
						$select.change();
					}
				}
				else
				{
					$select.change();
				}
			});
		});
		return ul;
	}
	
};