/*
* menuBox plugin pour jQuery développé par Mandchou
* http://www.mandchou.com/
*
* Copyright (c) 2009 Charly BELLE
* Dual licensed under the MIT and GPL licenses.
* http://docs.jquery.com/License
*
* Date: 2010-01-13 13:45:21 -0500 (Wed, 13 Jan 2010)
* Revision: 1
*/

(function($) {
    $.fn.menuBox = function(options) { // réglages par défaut
        options = jQuery.extend({
            speedIn: 200,
            speedOut: 100,
            menuWi: 200,
            align: 'horizontal',
            opacity: 1
        }, options);
        $.fn.findPos = function() {
            obj = jQuery(this).get(0);
            var curleft = obj.offsetLeft || 0;
            var curtop = obj.offsetTop || 0;
            while (obj = obj.offsetParent) {
                curleft += obj.offsetLeft
                curtop += obj.offsetTop
            }
            return { x: curleft, y: curtop };
        }
        this.each(function() {
            var _self = $(this);
            //var globalWi = parseInt($('html').width());
            _self.find('ul').css({ width: options.menuWi + 'px', position: 'absolute' });
            _self.find('ul').addClass('ulFirstChild');
            _self.find('ul').find('ul').css({ marginLeft: options.menuWi + 'px' });
            _self.find('ul').find('ul').removeClass('ulFirstChild');

            if (options.align == 'vertical') {
                var firstAlign = parseInt(_self.width());
                var debugAlign = 10;
            }

            else {
                var firstAlign = 0;
                var debugAlign = 5;
            }

            $(this).find('.ulFirstChild').css({ marginLeft: firstAlign + 'px' });

            $(this).find('ul').hide();
            $(this).find('li').bind('mouseenter', function() {
                var curObj = $(this).find('ul:first');
                var globalWi = parseInt($('html').width());
                var pos = $(this).findPos();
                if ((globalWi - pos.x) - options.menuWi < options.menuWi) {
                    var curMargin = parseInt(curObj.css('marginLeft'));
                    if (curMargin != 0) {
                        curObj.css({ marginLeft: '-' + options.menuWi + 'px' });
                    }

                    var diffMargin = (globalWi - pos.x) - options.menuWi;

                    if ((globalWi - pos.x) < options.menuWi) {
                        $(this).find('.ulFirstChild').css({ marginLeft: diffMargin - firstAlign - debugAlign + 'px' });
                    }
                }
                else {
                    var curMargin = parseInt(curObj.css('marginLeft'));
                    if (curMargin != 0) {
                        curObj.css({ marginLeft: options.menuWi + 'px' });
                        $(this).find('.ulFirstChild').css({ marginLeft: firstAlign + 'px' });
                    }
                }
                curObj.stop();
                curObj.css({ opacity: options.opacity });
                curObj.fadeIn(options.speedIn);
            });
            $(this).find('li').bind('mouseleave', function() {
                var curObj = $(this).find('ul:first');
                curObj.stop();
                curObj.fadeOut(options.speedOut);
            });
        });
    }
})(jQuery);