src/direct/JsonProvider.js

   1 /*!
   2  * Ext JS Library 3.1.0
   3  * Copyright(c) 2006-2009 Ext JS, LLC
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 /**\r
   8  * @class Ext.direct.JsonProvider\r
   9  * @extends Ext.direct.Provider\r
  10  */\r
  11 Ext.direct.JsonProvider = Ext.extend(Ext.direct.Provider, {\r
  12     parseResponse: function(xhr){\r
  13         if(!Ext.isEmpty(xhr.responseText)){\r
  14             if(typeof xhr.responseText == 'object'){\r
  15                 return xhr.responseText;\r
  16             }\r
  17             return Ext.decode(xhr.responseText);\r
  18         }\r
  19         return null;\r
  20     },\r
  21 \r
  22     getEvents: function(xhr){\r
  23         var data = null;\r
  24         try{\r
  25             data = this.parseResponse(xhr);\r
  26         }catch(e){\r
  27             var event = new Ext.Direct.ExceptionEvent({\r
  28                 data: e,\r
  29                 xhr: xhr,\r
  30                 code: Ext.Direct.exceptions.PARSE,\r
  31                 message: 'Error parsing json response: \n\n ' + data\r
  32             })\r
  33             return [event];\r
  34         }\r
  35         var events = [];\r
  36         if(Ext.isArray(data)){\r
  37             for(var i = 0, len = data.length; i < len; i++){\r
  38                 events.push(Ext.Direct.createEvent(data[i]));\r
  39             }\r
  40         }else{\r
  41             events.push(Ext.Direct.createEvent(data));\r
  42         }\r
  43         return events;\r
  44     }\r
  45 });