docs/source/JsonProvider.html

   1 <!DOCTYPE html><html><head><title>Sencha Documentation Project</title><link rel="stylesheet" href="../reset.css" type="text/css"><link rel="stylesheet" href="../prettify.css" type="text/css"><link rel="stylesheet" href="../prettify_sa.css" type="text/css"><script type="text/javascript" src="../prettify.js"></script></head><body onload="prettyPrint()"><pre class="prettyprint"><pre><span id='Ext-direct.JsonProvider'>/**
   2 </span> * @class Ext.direct.JsonProvider
   3  * @extends Ext.direct.Provider
   4
   5 A base provider for communicating using JSON. This is an abstract class
   6 and should not be instanced directly.
   7
   8  * @markdown
   9  * @abstract
  10  */
  11
  12 Ext.define('Ext.direct.JsonProvider', {
  13
  14     /* Begin Definitions */
  15
  16     extend: 'Ext.direct.Provider',
  17
  18     alias: 'direct.jsonprovider',
  19
  20     uses: ['Ext.direct.ExceptionEvent'],
  21
  22     /* End Definitions */
  23
  24 <span id='Ext-direct.JsonProvider-method-parseResponse'>   /**
  25 </span>    * Parse the JSON response
  26     * @private
  27     * @param {Object} response The XHR response object
  28     * @return {Object} The data in the response.
  29     */
  30    parseResponse: function(response){
  31         if (!Ext.isEmpty(response.responseText)) {
  32             if (Ext.isObject(response.responseText)) {
  33                 return response.responseText;
  34             }
  35             return Ext.decode(response.responseText);
  36         }
  37         return null;
  38     },
  39
  40 <span id='Ext-direct.JsonProvider-method-createEvents'>    /**
  41 </span>     * Creates a set of events based on the XHR response
  42      * @private
  43      * @param {Object} response The XHR response
  44      * @return {Array} An array of Ext.direct.Event
  45      */
  46     createEvents: function(response){
  47         var data = null,
  48             events = [],
  49             event,
  50             i = 0,
  51             len;
  52
  53         try{
  54             data = this.parseResponse(response);
  55         } catch(e) {
  56             event = Ext.create('Ext.direct.ExceptionEvent', {
  57                 data: e,
  58                 xhr: response,
  59                 code: Ext.direct.Manager.self.exceptions.PARSE,
  60                 message: 'Error parsing json response: \n\n ' + data
  61             });
  62             return [event];
  63         }
  64
  65         if (Ext.isArray(data)) {
  66             for (len = data.length; i &lt; len; ++i) {
  67                 events.push(this.createEvent(data[i]));
  68             }
  69         } else {
  70             events.push(this.createEvent(data));
  71         }
  72         return events;
  73     },
  74
  75 <span id='Ext-direct.JsonProvider-method-createEvent'>    /**
  76 </span>     * Create an event from a response object
  77      * @param {Object} response The XHR response object
  78      * @return {Ext.direct.Event} The event
  79      */
  80     createEvent: function(response){
  81         return Ext.create('direct.' + response.type, response);
  82     }
  83 });</pre></pre></body></html>