/**
 * 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: 10,
        listboxMaxSize: 10,
        listboxItemHeightKoef: 1.4,
        listboxItemWidthDelta: -15,
        replaceInvisible: false
    };
    var commonClass = 'jquery-custom-selectboxes-replaced';
    var listOpen = false;
    var showList = function (listObj) {
        var selectbox = listObj.parents('.' + settings.className + '');
        listObj.show();
        listOpen = true;
        selectbox.addClass('selecthover');
        jQuery(document).bind('click', onBlurList);
        return listObj;
    }
    var hideList = function (listObj) {
        var selectbox = listObj.parents('.' + settings.className + '');
        listObj.hide();
        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-wrapper:visible').parent().find('*').andSelf();
        if (jQuery.inArray(trgt, currentListElements) < 0 && listOpen) {
            hideList(jQuery('.' + commonClass + '-list-wrapper'));
        }
        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-wrapper ' + commonClass + '-list-wrapper">' +
                    '<div class="' + settings.className + '-list" />' +
                '</div>' +
                '<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-wrapper');
                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-wrapper')
                .not(thisMoreButton.siblings('.' + settings.className + '-list-wrapper'));
            hideList(otherLists);
            var thisList = thisMoreButton.siblings('.' + settings.className + '-list-wrapper');
            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() + 5);
        if (jQuery.browser.safari)
            thisListBoxWidth = thisListBoxWidth * 0.94;
        replacement.css('width', thisListBoxWidth + 'px');
        thisListBox.css({
            width: Math.round(thisListBoxWidth + settings.listboxItemWidthDelta) + 'px',
            height: thisListBoxSize * settings.listboxItemHeightKoef + '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());		
    });
}