/*
 * Async Treeview 0.1 - Lazy-loading extension for Treeview
 * 
 * http://bassistance.de/jquery-plugins/jquery-plugin-treeview/
 *
 * Copyright (c) 2007 Jörn Zaefferer
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
 * Revision: $Id: jquery.treeview.async.js,v 1.1 2010/10/06 09:56:51 tudor Exp $
 *
 */

;(function($) {

function load(settings, root, child, container) {
	$.getJSON(settings.url, {root: root}, function(response) {

		function createNode(parent) {
			var current = $("<li/>").attr("id", this.id || "").html("<span>" + this.text + "</span>").appendTo(parent);
			if (this.classes) {
				current.children("span").addClass(this.classes);
			}
			if (this.expanded) {
				current.addClass("open");
			}
			if (this.hasChildren || this.children && this.children.length) {
				var branch = $("<ul/>").appendTo(current);
				if (this.hasChildren) {
					current.addClass("hasChildren");
					createNode.call({
						text:"<img src='plugins/jquery-treeview/images/loader.gif' width='75px' />",
						id:"placeholder",
						children:[]
					}, branch );
				}
				if (this.children && this.children.length) {
					$.each(this.children, createNode, [branch])
				}
			}
		}
		
		$.each(response, createNode, [child]);		
        $(container).treeview({add: child});
		
		if ( arrOpenForced.length > 0   )		
			jQuery("li[id="+arrOpenForced.shift()+"] div").click();
		
    });
}
var set = "";
var cont = "";
var arrOpenForced = [];
var proxied = $.fn.treeview;
$.fn.treeview = function(settings) {

if ( typeof settings.open_forced != "undefined" )
{
	arrOpenForced = settings.open_forced;
}
	if (!settings.url) {
		return proxied.apply(this, arguments);
	}
	var container = this;
	load(settings, "source", this, container);
	
	var userToggle = settings.toggle;
	
	return proxied.call(this, $.extend({}, settings, {
		collapsed: true,
		toggle: function() {
			var $this = $(this);

			if ($this.hasClass("hasChildren")) {		
				var childList = $this.removeClass("hasChildren").find("ul");
				childList.empty();
				load(settings, this.id, childList, container);		
				
			}
			if (userToggle) {
				userToggle.apply(this, arguments); 
			}			
		}
	}));
	


	
		
	
};

})(jQuery);