/*
 * jQuery selectbox plugin
 *
 * Copyright (c) 2007 Sadri Sahraoui (brainfault.com)
 * Licensed under the GPL license and MIT:
 *   http://www.opensource.org/licenses/GPL-license.php
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * The code is inspired from Autocomplete plugin (http://www.dyve.net/jquery/?autocomplete)
 *
 * Revision: $Id: jquery.selectbox-0.6-beta1.js 1372 2008-12-02 10:33:23Z hugo.hamon $
 * Version: 0.6
 *
 * Changelog :
 *  Version 0.6
 *  - Fix IE scrolling problem
 *  Version 0.5
 *  - separate css style for current selected element and hover element which solve the highlight issue
 *  Version 0.4
 *  - Fix width when the select is in a hidden div   @Pawel Maziarz
 *  - Add a unique id for generated li to avoid conflict with other selects and empty values @Pawel Maziarz
 */
jQuery.fn.extend({
	selectbox: function(options) {
		return this.each(function() {
			new jQuery.SelectBox(this, options);
		});
	}
});


/* pawel maziarz: work around for ie logging */
if (!window.console) {
	var console = {
		log: function(msg) {
	 }
	}
}
/* */

jQuery.SelectBox = function(selectobj, options) {

	var opt = options || {};
	opt.inputClass = opt.inputClass || "selectbox";
	opt.containerClass = opt.containerClass || "selectbox-wrapper";
	opt.hoverClass = opt.hoverClass || "current";
	opt.currentClass = opt.selectedClass || "selected"
	opt.debug = opt.debug || false;
	opt.star = opt.star || false;

	var elm_id = selectobj.id;
	var active = 0;
	var inFocus = false;
	var hasfocus = 0;
	//jquery object for select element
	var $select = $(selectobj);
	var main_container = document.createElement('div');
	$main_container = $(main_container);
	$main_container.addClass("menu");
	// jquery container object
	var $container = setupContainer(opt);
	//jquery input object
	var $input = setupInput(opt);
	$main_container.append($input).append($container);
	// hide select and append newly created elements
	$select.hide().before($main_container);


	init();

	$input
	.click(function(){
    if (!inFocus)
    {   
		  $container.toggle();
		}
		else if ($container.css('display') == 'block')
		{
		  inFocus = false;
		}
	})
	.focus(function(){
	   if ($container.css('display') == 'none') {
	       inFocus = true;
	       $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 !
				$('li.'+opt.hoverClass).trigger('click');
				break;
			case 27: //escape
			  hideMe();
			  break;
		}
	})
	.blur(function() {
		if ($container.is(':visible') && hasfocus > 0 ) {
			if(opt.debug) console.log('container visible and has focus')
		} else {
		  // Workaround for ie scroll - thanks to Bernd Matzner
		  if($.browser.msie || $.browser.safari){ // check for safari too - workaround for webkit
        if(document.activeElement.getAttribute('id').indexOf('_container')==-1){
          hideMe();
        } else {
          $input.focus();
        }
      } else {
        hideMe();
      }
		}
	});


	function hideMe() {
		hasfocus = 0;
		$container.hide();
	}

	function init() {
		$container.append(getSelectOptions($input.attr('id'))).hide();
		var width = $input.css('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 = document.createElement("div");
		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 || lis.length == 0) return false;
		active += step;
    //loop through list
		if (active < 0) {
			active = lis.size();
		} else if (active > lis.size()) {
			active = 0;
		}
    scroll(lis, active);
		lis.removeClass(opt.hoverClass);

		$(lis[active]).addClass(opt.hoverClass);
	}

	function scroll(list, active) {
      var el = $(list[active]).get(0);
      var list = $container.get(0);

      if (el.offsetTop + el.offsetHeight > list.scrollTop + list.clientHeight) {
        list.scrollTop = el.offsetTop + el.offsetHeight - list.clientHeight;
      } else if(el.offsetTop < list.scrollTop) {
        list.scrollTop = el.offsetTop;
      }
	}

	function setCurrent() {
		var li = $("li."+opt.currentClass, $container).get(0);
		li.id += (li.innerText && (li.id.substr(li.id.length-1, 1) == "_"))  ? li.innerText : '';
		var ar = (''+li.id).split('_');
		var el = ar[ar.length-1];
		$select.val(el);
		$input.html($(li).html());
		return true;
	}

	// select value
	function getCurrentSelected() {
		return $select.val();
	}

	// input value
	function getCurrentValue() {
		return $input.val();
	}

	function getSelectOptions(parentid) {
		var select_options = new Array();
		var ul = document.createElement('ul');
		$select.children('option').each(function() {
			var li = document.createElement('li');
			li.setAttribute('id', parentid + '_' + $(this).val());
			var html = "<span class=\"" + parentid + '_' + $(this).val() + "\">";

			if (opt.star && $(this).val())
      {
        var star = '';
        
        if (0 == $(this).val())
        {
          star += 'Pas de note';
        }
        else
        {
          for (i = 1; i <= 5; i++)
          {
            if (i <= $(this).val())
            {
              onoff = 'on';
            }
            else
            {
              onoff = 'off';
            }
          
            star += '<img alt="Notation-' + onoff + '" src="/forums/images/forum/notation-' + onoff + '.gif"/>';
          } 
        }
        html += star;
      }
      else
      {
        html += $(this).html();
      }
      html += "</span>";
			li.innerHTML = html;
      
			//console.log(li.innerHTML);
			if ($(this).is(':selected')) {
				$input.html(li.innerHTML);//"jjj");
				$(li).addClass(opt.currentClass);
			}
			ul.appendChild(li);
			$(li)
			.hover(
			function(event) {
				hasfocus = 1;
				if (opt.debug) console.log('over on : '+this.id);
				jQuery(event.target, $container).addClass(opt.hoverClass);
			},
			function(event) {
				hasfocus = -1;
				if (opt.debug) console.log('out on : '+this.id);
				jQuery(event.target, $container).removeClass(opt.hoverClass);
			})
			.click(function(event) {
			  var fl = $('li.'+opt.hoverClass, $container).get(0);
				if (opt.debug) console.log('click on :'+this.id);
				$('li.'+opt.currentClass).removeClass(opt.currentClass);
				$(this).addClass(opt.currentClass);
				setCurrent();
				$select.change();
				$select.get(0).blur();
				hideMe();
			});
		});
		return ul;
	}



};