doc/xslt/webhelp/docs/common/jquery/treeview/jquery.treeview.async.js

   1 /*\r
   2  * Async Treeview 0.1 - Lazy-loading extension for Treeview\r
   3  * \r
   4  * http://bassistance.de/jquery-plugins/jquery-plugin-treeview/\r
   5  *\r
   6  * Copyright (c) 2007 Jörn Zaefferer\r
   7  *\r
   8  * Dual licensed under the MIT and GPL licenses:\r
   9  *   http://www.opensource.org/licenses/mit-license.php\r
  10  *   http://www.gnu.org/licenses/gpl.html\r
  11  *\r
  12  * Revision: $Id$\r
  13  *\r
  14  */\r
  15 \r
  16 ;(function($) {\r
  17 \r
  18 function load(settings, root, child, container) {\r
  19         $.getJSON(settings.url, {root: root}, function(response) {\r
  20                 function createNode(parent) {\r
  21                         var current = $("<li/>").attr("id", this.id || "").html("<span>" + this.text + "</span>").appendTo(parent);\r
  22                         if (this.classes) {\r
  23                                 current.children("span").addClass(this.classes);\r
  24                         }\r
  25                         if (this.expanded) {\r
  26                                 current.addClass("open");\r
  27                         }\r
  28                         if (this.hasChildren || this.children && this.children.length) {\r
  29                                 var branch = $("<ul/>").appendTo(current);\r
  30                                 if (this.hasChildren) {\r
  31                                         current.addClass("hasChildren");\r
  32                                         createNode.call({\r
  33                                                 text:"placeholder",\r
  34                                                 id:"placeholder",\r
  35                                                 children:[]\r
  36                                         }, branch);\r
  37                                 }\r
  38                                 if (this.children && this.children.length) {\r
  39                                         $.each(this.children, createNode, [branch])\r
  40                                 }\r
  41                         }\r
  42                 }\r
  43                 $.each(response, createNode, [child]);\r
  44         $(container).treeview({add: child});\r
  45     });\r
  46 }\r
  47 \r
  48 var proxied = $.fn.treeview;\r
  49 $.fn.treeview = function(settings) {\r
  50         if (!settings.url) {\r
  51                 return proxied.apply(this, arguments);\r
  52         }\r
  53         var container = this;\r
  54         load(settings, "source", this, container);\r
  55         var userToggle = settings.toggle;\r
  56         return proxied.call(this, $.extend({}, settings, {\r
  57                 collapsed: true,\r
  58                 toggle: function() {\r
  59                         var $this = $(this);\r
  60                         if ($this.hasClass("hasChildren")) {\r
  61                                 var childList = $this.removeClass("hasChildren").find("ul");\r
  62                                 childList.empty();\r
  63                                 load(settings, this.id, childList, container);\r
  64                         }\r
  65                         if (userToggle) {\r
  66                                 userToggle.apply(this, arguments);\r
  67                         }\r
  68                 }\r
  69         }));\r
  70 };\r
  71 \r
  72 })(jQuery);