src/direct/JsonProvider.js

   1 /*!
   2  * Ext JS Library 3.2.2
   3  * Copyright(c) 2006-2010 Ext JS, Inc.
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 /**
   8  * @class Ext.direct.JsonProvider
   9  * @extends Ext.direct.Provider
  10  */
  11 Ext.direct.JsonProvider = Ext.extend(Ext.direct.Provider, {
  12     parseResponse: function(xhr){
  13         if(!Ext.isEmpty(xhr.responseText)){
  14             if(typeof xhr.responseText == 'object'){
  15                 return xhr.responseText;
  16             }
  17             return Ext.decode(xhr.responseText);
  18         }
  19         return null;
  20     },
  21
  22     getEvents: function(xhr){
  23         var data = null;
  24         try{
  25             data = this.parseResponse(xhr);
  26         }catch(e){
  27             var event = new Ext.Direct.ExceptionEvent({
  28                 data: e,
  29                 xhr: xhr,
  30                 code: Ext.Direct.exceptions.PARSE,
  31                 message: 'Error parsing json response: \n\n ' + data
  32             });
  33             return [event];
  34         }
  35         var events = [];
  36         if(Ext.isArray(data)){
  37             for(var i = 0, len = data.length; i < len; i++){
  38                 events.push(Ext.Direct.createEvent(data[i]));
  39             }
  40         }else{
  41             events.push(Ext.Direct.createEvent(data));
  42         }
  43         return events;
  44     }
  45 });