/**
 * jQuery custom selectboxes
 * 
 * Copyright (c) 2008 Krzysztof Suszyński (suszynski.org)
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * @version 0.6.1
 * @category visual
 * @package jquery
 * @subpakage ui.selectbox
 * @author Krzysztof Suszyński <k.suszynski@wit.edu.pl>
**/
jQuery.fn.selectbox = function(options){
  /* Default settings */
  var settings = {
    className: 'jquery-selectbox',
    animationSpeed: "normal",
    listboxMaxSize: 10,
    replaceInvisible: false
  };
  var commonClass = 'jquery-custom-selectboxes-replaced';
  var listOpen = false;
  var showList = function(listObj) {
    var selectbox = listObj.parents('.' + settings.className + '');
    listObj.slideDown(settings.animationSpeed, function(){
      listOpen = true;
    });
    selectbox.addClass('selecthover');
    jQuery(document).bind('click', onBlurList);
    return listObj;
  }
  var hideList = function(listObj) {
    var selectbox = listObj.parents('.' + settings.className + '');
    listObj.slideUp(settings.animationSpeed, function(){
      listOpen = false;
      jQuery(this).parents('.' + settings.className + '').removeClass('selecthover');
    });
    jQuery(document).unbind('click', onBlurList);
    return listObj;
  }
  var onBlurList = function(e) {
    var trgt = e.target;
    var currentListElements = jQuery('.' + settings.className + '-list:visible').parent().find('*').andSelf();
    if(jQuery.inArray(trgt, currentListElements)<0 && listOpen) {
      hideList( jQuery('.' + commonClass + '-list') );
    }
    return false;
  }
  
  /* Processing settings */
  settings = jQuery.extend(settings, options || {});
  /* Wrapping all passed elements */
  return this.each(function() {
    var _this = jQuery(this);
    if(_this.filter(':visible').length == 0 && !settings.replaceInvisible)
      return;
    var replacement = jQuery(
      '<div class="' + settings.className + ' ' + commonClass + '">' +
        '<div class="' + settings.className + '-moreButton" />' +
        '<div class="' + settings.className + '-list ' + commonClass + '-list" />' +
        '<span class="' + settings.className + '-currentItem" />' +
      '</div>'
    );
    jQuery('option', _this).each(function(k,v){
      var v = jQuery(v);
      var listElement =  jQuery('<span class="' + settings.className + '-item value-'+v.val()+' item-'+k+'">' + v.text() + '</span>');  
      listElement.click(function(){
        var thisListElement = jQuery(this);
        var thisReplacment = thisListElement.parents('.'+settings.className);
        var thisIndex = thisListElement[0].className.split(' ');
        for( k1 in thisIndex ) {
          if(/^item-[0-9]+$/.test(thisIndex[k1])) {
            thisIndex = parseInt(thisIndex[k1].replace('item-',''), 10);
            break;
          }
        };
        var thisValue = thisListElement[0].className.split(' ');
        for( k1 in thisValue ) {
          if(/^value-.+$/.test(thisValue[k1])) {
            thisValue = thisValue[k1].replace('value-','');
            break;
          }
        };
        thisReplacment
          .find('.' + settings.className + '-currentItem')
          .text(thisListElement.text());
        thisReplacment
          .find('select')
          .val(thisValue)
          .triggerHandler('change');
        var thisSublist = thisReplacment.find('.' + settings.className + '-list');
        if(thisSublist.filter(":visible").length > 0) {
          hideList( thisSublist );
        }else{
          showList( thisSublist );
        }
      }).bind('mouseenter',function(){
        jQuery(this).addClass('listelementhover');
      }).bind('mouseleave',function(){
        jQuery(this).removeClass('listelementhover');
      });
      jQuery('.' + settings.className + '-list', replacement).append(listElement);
      if(v.filter(':selected').length > 0) {
        jQuery('.'+settings.className + '-currentItem', replacement).text(v.text());
      }
    });
    replacement.find('.' + settings.className + '-moreButton').click(function(){
      var thisMoreButton = jQuery(this);
      var otherLists = jQuery('.' + settings.className + '-list')
        .not(thisMoreButton.siblings('.' + settings.className + '-list'));
      hideList( otherLists );
      var thisList = thisMoreButton.siblings('.' + settings.className + '-list');
      if(thisList.filter(":visible").length > 0) {
        hideList( thisList );
      }else{
        showList( thisList );
      }
    }).bind('mouseenter',function(){
      jQuery(this).addClass('morebuttonhover');
    }).bind('mouseleave',function(){
      jQuery(this).removeClass('morebuttonhover');
    });
    _this.hide().replaceWith(replacement).appendTo(replacement);
    var thisListBox = replacement.find('.' + settings.className + '-list');
    var thisListBoxSize = thisListBox.find('.' + settings.className + '-item').length;
    if(thisListBoxSize > settings.listboxMaxSize)
      thisListBoxSize = settings.listboxMaxSize;
    if(thisListBoxSize == 0)
      thisListBoxSize = 1;  
    var thisListBoxWidth = Math.round(_this.width() + 135);
    if(jQuery.browser.safari)
      thisListBoxWidth = thisListBoxWidth * 0.94;
    replacement.css('width', thisListBoxWidth + 'px');
    thisListBox.css({
      width: Math.round(thisListBoxWidth-5) + 'px',
      height: thisListBoxSize + 'em'
    });
  });
}
jQuery.fn.unselectbox = function(){
  var commonClass = 'jquery-custom-selectboxes-replaced';
  return this.each(function() {
    var selectToRemove = jQuery(this).filter('.' + commonClass);
    selectToRemove.replaceWith(selectToRemove.find('select').show());    
  });
}