FarmTrace/easyui-1.4.1/src/jquery.menu.js

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/**
 * jQuery EasyUI 1.4.1
 * 
 * Copyright (c) 2009-2014 www.jeasyui.com. All rights reserved.
 *
 * Licensed under the GPL license: http://www.gnu.org/licenses/gpl.txt
 * To use it on other terms please contact us at info@jeasyui.com
 *
 */
/**
 * menu - jQuery EasyUI
 * 
 */
(function($){
	
	/**
	 * initialize the target menu, the function can be invoked only once
	 */
	function init(target){
		$(target).appendTo('body');
		$(target).addClass('menu-top');	// the top menu
		
		$(document).unbind('.menu').bind('mousedown.menu', function(e){
//			var allMenu = $('body>div.menu:visible');
//			var m = $(e.target).closest('div.menu', allMenu);
			var m = $(e.target).closest('div.menu,div.combo-p');
			if (m.length){return}
			$('body>div.menu-top:visible').menu('hide');
		});
		
		var menus = splitMenu($(target));
		for(var i=0; i<menus.length; i++){
			createMenu(menus[i]);
		}
		
		function splitMenu(menu){
			var menus = [];
			menu.addClass('menu');
			menus.push(menu);
			if (!menu.hasClass('menu-content')){
				menu.children('div').each(function(){
					var submenu = $(this).children('div');
					if (submenu.length){
						submenu.insertAfter(target);
						this.submenu = submenu;		// point to the sub menu
						var mm = splitMenu(submenu);
						menus = menus.concat(mm);
					}
				});
			}
			return menus;
		}
		
		function createMenu(menu){
			var wh = $.parser.parseOptions(menu[0], ['width','height']);
			menu[0].originalHeight = wh.height || 0;
			if (menu.hasClass('menu-content')){
				menu[0].originalWidth = wh.width || menu._outerWidth();
			} else {
				menu[0].originalWidth = wh.width || 0;