src/cm/media/js/lib/yui/yui3.0.0/api/io-base.js.html
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     1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
       
     2 <html xmlns:yui="http://yuilibrary.com/rdf/1.0/yui.rdf#">
       
     3 <head>
       
     4     <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
       
     5 	<title>API: io   io-base.js  (YUI Library)</title>
       
     6 
       
     7 	<link rel="stylesheet" type="text/css" href="assets/reset-fonts-grids-min.css" />
       
     8 	<link rel="stylesheet" type="text/css" href="assets/api.css" />
       
     9 
       
    10     <script type="text/javascript" src="assets/api-js"></script>
       
    11     <script type="text/javascript" src="assets/ac-js"></script>
       
    12 </head>
       
    13 
       
    14 <body id="yahoo-com">
       
    15 
       
    16 <div id="doc3" class="yui-t2">
       
    17 	<div id="hd">
       
    18         <h1><a href="http://developer.yahoo.com/yui/" title="Yahoo! UI Library">Yahoo! UI Library</a></h1>
       
    19         <h3>io&nbsp; <span class="subtitle">3.0.0</span></h3>
       
    20         <a href="./index.html" title="Yahoo! UI Library">Yahoo! UI Library</a> 
       
    21             &gt; <a href="./module_io.html" title="io">io</a>
       
    22                 
       
    23                  &gt; io-base.js (source view) 
       
    24         <form onsubmit="return false">
       
    25             <div id="propertysearch">
       
    26                 Search: <input autocomplete="off" id="searchinput" />
       
    27                 <div id="searchresults">
       
    28                     &nbsp;
       
    29                 </div>
       
    30             </div>
       
    31         </form>
       
    32 	</div>
       
    33 
       
    34 	<div id="bd">
       
    35 		<div id="yui-main">
       
    36 			<div class="yui-b">
       
    37             <form action="#" name="yui-classopts-form" method="get" id="yui-classopts-form">
       
    38                 <fieldset>
       
    39                     <legend>Filters</legend>
       
    40                 <span class="classopts"><input type="checkbox" name="show_private" id="show_private" /> <label for="show_private">Show Private</label></span>
       
    41                 <span class="classopts"><input type="checkbox" name="show_protected" id="show_protected" /> <label for="show_protected">Show Protected</label></span>
       
    42                 <span class="classopts"><input type="checkbox" name="show_deprecated" id="show_deprecated" /> <label for="show_deprecated">Show Deprecated</label></span>
       
    43                 </fieldset>
       
    44             </form>
       
    45 
       
    46                     <div id="srcout">
       
    47                         <style>
       
    48                             #doc3 .classopts { display:none; }
       
    49                         </style>
       
    50                         <div class="highlight" ><pre>   <span class="c">/**</span>
       
    51 <span class="c">   	* Base IO functionality. Provides basic XHR transport support.</span>
       
    52 <span class="c">   	* @module io</span>
       
    53 <span class="c">   	* @submodule io-base</span>
       
    54 <span class="c">   	*/</span>
       
    55 
       
    56    <span class="c">/**</span>
       
    57 <span class="c">	* The io class is a utility that brokers HTTP requests through a simplified</span>
       
    58 <span class="c">	* interface.  Specifically, it allows JavaScript to make HTTP requests to</span>
       
    59 <span class="c">	* a resource without a page reload.  The underlying transport for making</span>
       
    60 <span class="c">	* same-domain requests is the XMLHttpRequest object.  YUI.io can also use</span>
       
    61 <span class="c">	* Flash, if specified as a transport, for cross-domain requests.</span>
       
    62 <span class="c">	*</span>
       
    63 <span class="c">   	* @class io</span>
       
    64 <span class="c">   	*/</span>
       
    65 
       
    66    <span class="c">/**</span>
       
    67 <span class="c">   	* @event io:start</span>
       
    68 <span class="c">   	* @description This event is fired by YUI.io when a transaction is initiated.</span>
       
    69 <span class="c">   	* @type Event Custom</span>
       
    70 <span class="c">   	*/</span>
       
    71    	<span class="k">var</span> <span class="nx">E_START</span> <span class="o">=</span> <span class="s1">&#39;io:start&#39;</span><span class="o">,</span>
       
    72 
       
    73    <span class="c">/**</span>
       
    74 <span class="c">   	* @event io:complete</span>
       
    75 <span class="c">   	* @description This event is fired by YUI.io when a transaction is complete.</span>
       
    76 <span class="c">   	* Response status and data are accessible, if available.</span>
       
    77 <span class="c">   	* @type Event Custom</span>
       
    78 <span class="c">   	*/</span>
       
    79    	<span class="nx">E_COMPLETE</span> <span class="o">=</span> <span class="s1">&#39;io:complete&#39;</span><span class="o">,</span>
       
    80 
       
    81    <span class="c">/**</span>
       
    82 <span class="c">   	* @event io:success</span>
       
    83 <span class="c">   	* @description This event is fired by YUI.io when a transaction is complete, and</span>
       
    84 <span class="c">   	* the HTTP status resolves to HTTP2xx.</span>
       
    85 <span class="c">   	* @type Event Custom</span>
       
    86 <span class="c">   	*/</span>
       
    87    	<span class="nx">E_SUCCESS</span> <span class="o">=</span> <span class="s1">&#39;io:success&#39;</span><span class="o">,</span>
       
    88 
       
    89    <span class="c">/**</span>
       
    90 <span class="c">   	* @event io:failure</span>
       
    91 <span class="c">   	* @description This event is fired by YUI.io when a transaction is complete, and</span>
       
    92 <span class="c">   	* the HTTP status resolves to HTTP4xx, 5xx and above.</span>
       
    93 <span class="c">   	* @type Event Custom</span>
       
    94 <span class="c">   	*/</span>
       
    95    	<span class="nx">E_FAILURE</span> <span class="o">=</span> <span class="s1">&#39;io:failure&#39;</span><span class="o">,</span>
       
    96 
       
    97    <span class="c">/**</span>
       
    98 <span class="c">   	* @event io:end</span>
       
    99 <span class="c">   	* @description This event signifies the end of the transaction lifecycle.  The</span>
       
   100 <span class="c">   	* transaction transport is destroyed.</span>
       
   101 <span class="c">   	* @type Event Custom</span>
       
   102 <span class="c">   	*/</span>
       
   103    	<span class="nx">E_END</span> <span class="o">=</span> <span class="s1">&#39;io:end&#39;</span><span class="o">,</span>
       
   104 
       
   105    	<span class="c">//--------------------------------------</span>
       
   106 <span class="c"></span>   	<span class="c">//  Properties</span>
       
   107 <span class="c"></span>   	<span class="c">//--------------------------------------</span>
       
   108 <span class="c"></span>   <span class="c">/**</span>
       
   109 <span class="c">   	* @description A transaction counter that increments for each transaction.</span>
       
   110 <span class="c">   	*</span>
       
   111 <span class="c">   	* @property transactionId</span>
       
   112 <span class="c">   	* @private</span>
       
   113 <span class="c">   	* @static</span>
       
   114 <span class="c">   	* @type int</span>
       
   115 <span class="c">   	*/</span>
       
   116    	<span class="nx">transactionId</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span>
       
   117 
       
   118    <span class="c">/**</span>
       
   119 <span class="c">   	* @description Object of default HTTP headers to be initialized and sent</span>
       
   120 <span class="c">   	* for all transactions.</span>
       
   121 <span class="c">   	*</span>
       
   122 <span class="c">   	* @property _headers</span>
       
   123 <span class="c">   	* @private</span>
       
   124 <span class="c">   	* @static</span>
       
   125 <span class="c">   	* @type object</span>
       
   126 <span class="c">   	*/</span>
       
   127    	<span class="nx">_headers</span> <span class="o">=</span> <span class="o">{</span>
       
   128    		<span class="s1">&#39;X-Requested-With&#39;</span> <span class="o">:</span> <span class="s1">&#39;XMLHttpRequest&#39;</span>
       
   129    	<span class="o">},</span>
       
   130 
       
   131    <span class="c">/**</span>
       
   132 <span class="c">   	* @description Object that stores timeout values for any transaction with</span>
       
   133 <span class="c">   	* a defined &quot;timeout&quot; configuration property.</span>
       
   134 <span class="c">   	*</span>
       
   135 <span class="c">   	* @property _timeout</span>
       
   136 <span class="c">   	* @private</span>
       
   137 <span class="c">   	* @static</span>
       
   138 <span class="c">   	* @type object</span>
       
   139 <span class="c">   	*/</span>
       
   140    	<span class="nx">_timeout</span> <span class="o">=</span> <span class="o">{},</span>
       
   141 
       
   142    	<span class="c">// Window reference</span>
       
   143 <span class="c"></span>   	<span class="nx">w</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">config</span><span class="o">.</span><span class="nx">win</span><span class="o">;</span>
       
   144 
       
   145    	<span class="c">//--------------------------------------</span>
       
   146 <span class="c"></span>   	<span class="c">//  Methods</span>
       
   147 <span class="c"></span>   	<span class="c">//--------------------------------------</span>
       
   148 <span class="c"></span>   <span class="c">/**</span>
       
   149 <span class="c">   	* @description Method for requesting a transaction. _io() is implemented as</span>
       
   150 <span class="c">   	* yui.io().  Each transaction may include a configuration object.  Its</span>
       
   151 <span class="c">   	* properties are:</span>
       
   152 <span class="c">   	*</span>
       
   153 <span class="c">   	* method: HTTP method verb (e.g., GET or POST). If this property is not</span>
       
   154 <span class="c">   	*         not defined, the default value will be GET.</span>
       
   155 <span class="c">   	*</span>
       
   156 <span class="c">   	* data: This is the name-value string that will be sent as the transaction</span>
       
   157 <span class="c">    *		data.  If the request is HTTP GET, the data become part of</span>
       
   158 <span class="c">    *		querystring. If HTTP POST, the data are sent in the message body.</span>
       
   159 <span class="c">   	*</span>
       
   160 <span class="c">   	* xdr: Defines the transport to be used for cross-domain requests.  By</span>
       
   161 <span class="c">   	*      setting this property, the transaction will use the specified</span>
       
   162 <span class="c">   	*      transport instead of XMLHttpRequest.  Currently, the only alternate</span>
       
   163 <span class="c">   	*      transport supported is Flash (e.g., { xdr: &#39;flash&#39; }).</span>
       
   164 <span class="c">   	*</span>
       
   165 <span class="c">   	* form: This is a defined object used to process HTML form as data.  The</span>
       
   166 <span class="c">   	*       properties are:</span>
       
   167 <span class="c">   	*       {</span>
       
   168 <span class="c">   	*	      id: object, //HTML form object or id of HTML form</span>
       
   169 <span class="c">   	*         useDisabled: boolean, //Allow disabled HTML form field values</span>
       
   170 <span class="c">   	*                      to be sent as part of the data.</span>
       
   171 <span class="c">	*       }</span>
       
   172 <span class="c">	*</span>
       
   173 <span class="c">	* on: This is a defined object used to create and handle specific</span>
       
   174 <span class="c">	*     events during a transaction lifecycle.  These events will fire in</span>
       
   175 <span class="c">	*     addition to the global io events. The events are:</span>
       
   176 <span class="c">	*	  start - This event is fired when a request is sent to a resource.</span>
       
   177 <span class="c">	*     complete - This event fires when the transaction is complete.</span>
       
   178 <span class="c">	*     success - This event fires when the response status resolves to</span>
       
   179 <span class="c">	*               HTTP 2xx.</span>
       
   180 <span class="c">	*     failure - This event fires when the response status resolves to</span>
       
   181 <span class="c">	*               HTTP 4xx, 5xx; and, for all transaction exceptions,</span>
       
   182 <span class="c">	*               including aborted transactions and transaction timeouts.</span>
       
   183 <span class="c">	*	  end -  This even is fired at the conclusion of the transaction</span>
       
   184 <span class="c">   	*			 lifecycle, after a success or failure resolution.</span>
       
   185 <span class="c">	*</span>
       
   186 <span class="c">	*     The properties are:</span>
       
   187 <span class="c">	*     {</span>
       
   188 <span class="c">   	*       start: function(id, args){},</span>
       
   189 <span class="c">   	*       complete: function(id, responseobject, args){},</span>
       
   190 <span class="c">   	*       success: function(id, responseobject, args){},</span>
       
   191 <span class="c">   	*       failure: function(id, responseobject, args){},</span>
       
   192 <span class="c">   	*       end: function(id, args){}</span>
       
   193 <span class="c">   	*     }</span>
       
   194 <span class="c">   	*	  Each property can reference a function or be written as an</span>
       
   195 <span class="c">   	*     inline function.</span>
       
   196 <span class="c">   	*</span>
       
   197 <span class="c">   	*     context: Object reference for an event handler when it is implemented</span>
       
   198 <span class="c">   	*              as a method of a base object. Defining &quot;context&quot; will preserve</span>
       
   199 <span class="c">   	*              the proper reference of &quot;this&quot; used in the event handler.</span>
       
   200 <span class="c">   	*     headers: This is a defined object of client headers, as many as.</span>
       
   201 <span class="c">   	*              desired for the transaction.  These headers are sentThe object</span>
       
   202 <span class="c">   	*              pattern is:</span>
       
   203 <span class="c">   	*              {</span>
       
   204 <span class="c">   	*		         header: value</span>
       
   205 <span class="c">   	*              }</span>
       
   206 <span class="c">   	*</span>
       
   207 <span class="c">   	* timeout: This value, defined as milliseconds, is a time threshold for the</span>
       
   208 <span class="c">   	*          transaction. When this threshold is reached, and the transaction&#39;s</span>
       
   209 <span class="c">   	*          Complete event has not yet fired, the transaction will be aborted.</span>
       
   210 <span class="c">   	* arguments: Object, array, string, or number passed to all registered</span>
       
   211 <span class="c">   	*            event handlers.  This value is available as the second</span>
       
   212 <span class="c">   	*            argument in the &quot;start&quot; and &quot;abort&quot; event handlers; and, it is</span>
       
   213 <span class="c">   	*            the third argument in the &quot;complete&quot;, &quot;success&quot;, and &quot;failure&quot;</span>
       
   214 <span class="c">   	*            event handlers.</span>
       
   215 <span class="c">   	*</span>
       
   216 <span class="c">   	* @method _io</span>
       
   217 <span class="c">   	* @private</span>
       
   218 <span class="c">   	* @static</span>
       
   219 <span class="c">	* @param {string} uri - qualified path to transaction resource.</span>
       
   220 <span class="c">	* @param {object} c - configuration object for the transaction.</span>
       
   221 <span class="c">	* @param {number} i - transaction id, if already set by queue.</span>
       
   222 <span class="c">	* @return object</span>
       
   223 <span class="c">   	*/</span>
       
   224    	<span class="k">function</span> <span class="nx">_io</span><span class="o">(</span><span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">,</span> <span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   225    		<span class="k">var</span> <span class="nx">f</span><span class="o">,</span> <span class="nx">o</span><span class="o">,</span> <span class="nx">m</span><span class="o">;</span>
       
   226    			<span class="nx">c</span> <span class="o">=</span> <span class="nx">c</span> <span class="o">||</span> <span class="o">{};</span>
       
   227    			<span class="nx">o</span> <span class="o">=</span> <span class="nx">_create</span><span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span> <span class="o">||</span> <span class="nx">c</span><span class="o">.</span><span class="nx">form</span><span class="o">,</span> <span class="nx">i</span><span class="o">);</span>
       
   228    			<span class="nx">m</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">method</span> <span class="o">?</span> <span class="nx">c</span><span class="o">.</span><span class="nx">method</span><span class="o">.</span><span class="nx">toUpperCase</span><span class="o">()</span> <span class="o">:</span> <span class="s1">&#39;GET&#39;</span><span class="o">;</span>
       
   229 
       
   230    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">form</span><span class="o">)</span> <span class="o">{</span>
       
   231    			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">form</span><span class="o">.</span><span class="nx">upload</span><span class="o">)</span> <span class="o">{</span>
       
   232    				<span class="k">return</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">_upload</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   233    			<span class="o">}</span>
       
   234    			<span class="k">else</span> <span class="o">{</span>
       
   235 				<span class="nx">f</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">_serialize</span><span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">form</span><span class="o">,</span> <span class="nx">c</span><span class="o">.</span><span class="nx">data</span><span class="o">);</span>
       
   236 				<span class="k">if</span> <span class="o">(</span><span class="nx">m</span> <span class="o">===</span> <span class="s1">&#39;POST&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   237 					<span class="nx">c</span><span class="o">.</span><span class="nx">data</span> <span class="o">=</span> <span class="nx">f</span><span class="o">;</span>
       
   238 					<span class="nx">_setHeader</span><span class="o">(</span><span class="s1">&#39;Content-Type&#39;</span><span class="o">,</span> <span class="s1">&#39;application/x-www-form-urlencoded&#39;</span><span class="o">);</span>
       
   239 				<span class="o">}</span>
       
   240 				<span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">m</span> <span class="o">===</span> <span class="s1">&#39;GET&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   241 					<span class="nx">uri</span> <span class="o">=</span> <span class="nx">_concat</span><span class="o">(</span><span class="nx">uri</span><span class="o">,</span> <span class="nx">f</span><span class="o">);</span>
       
   242 				<span class="o">}</span>
       
   243 			<span class="o">}</span>
       
   244 		<span class="o">}</span>
       
   245 		<span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">data</span> <span class="o">&amp;&amp;</span> <span class="nx">m</span> <span class="o">===</span> <span class="s1">&#39;GET&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   246 			<span class="nx">uri</span> <span class="o">=</span> <span class="nx">_concat</span><span class="o">(</span><span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">.</span><span class="nx">data</span><span class="o">);</span>
       
   247 		<span class="o">}</span>
       
   248 
       
   249    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">)</span> <span class="o">{</span>
       
   250 			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">.</span><span class="nx">use</span> <span class="o">===</span> <span class="s1">&#39;native&#39;</span> <span class="o">&amp;&amp;</span> <span class="nb">window</span><span class="o">.</span><span class="nx">XDomainRequest</span> <span class="o">||</span> <span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">.</span><span class="nx">use</span> <span class="o">===</span> <span class="s1">&#39;flash&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   251    				<span class="k">return</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">xdr</span><span class="o">(</span><span class="nx">uri</span><span class="o">,</span> <span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   252 			<span class="o">}</span>
       
   253 			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">.</span><span class="nx">credentials</span><span class="o">)</span> <span class="o">{</span>
       
   254 				<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">withCredentials</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   255 			<span class="o">}</span>
       
   256    		<span class="o">}</span>
       
   257 
       
   258    		<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">onreadystatechange</span> <span class="o">=</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span> <span class="nx">_readyState</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span> <span class="o">};</span>
       
   259    		<span class="k">try</span> <span class="o">{</span>
       
   260 			<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">open</span><span class="o">(</span><span class="nx">m</span><span class="o">,</span> <span class="nx">uri</span><span class="o">,</span> <span class="kc">true</span><span class="o">);</span>
       
   261    		<span class="o">}</span>
       
   262    		<span class="k">catch</span><span class="o">(</span><span class="nx">e0</span><span class="o">){</span>
       
   263 			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">)</span> <span class="o">{</span>
       
   264 				<span class="c">// This exception is usually thrown by browsers</span>
       
   265 <span class="c"></span>				<span class="c">// that do not support native XDR transactions.</span>
       
   266 <span class="c"></span>				<span class="k">return</span> <span class="nx">_resend</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   267 			<span class="o">}</span>
       
   268 		<span class="o">}</span>
       
   269 
       
   270    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">data</span> <span class="o">&amp;&amp;</span> <span class="nx">m</span> <span class="o">===</span> <span class="s1">&#39;POST&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   271    			<span class="nx">_setHeader</span><span class="o">(</span><span class="s1">&#39;Content-Type&#39;</span><span class="o">,</span> <span class="s1">&#39;application/x-www-form-urlencoded; charset=UTF-8&#39;</span><span class="o">);</span>
       
   272    		<span class="o">}</span>
       
   273 
       
   274    		<span class="nx">_setHeaders</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">,</span> <span class="nx">c</span><span class="o">.</span><span class="nx">headers</span> <span class="o">||</span> <span class="o">{});</span>
       
   275 		<span class="k">try</span> <span class="o">{</span>
       
   276 			<span class="c">// Using &quot;null&quot; will result in a POST request with</span>
       
   277 <span class="c"></span>			<span class="c">// no Content-Length defined.</span>
       
   278 <span class="c"></span>	   		<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">send</span><span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">data</span> <span class="o">||</span> <span class="s1">&#39;&#39;</span><span class="o">);</span>
       
   279 		<span class="o">}</span>
       
   280    		<span class="k">catch</span><span class="o">(</span><span class="nx">e1</span><span class="o">)</span> <span class="o">{</span>
       
   281 			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">)</span> <span class="o">{</span>
       
   282 				<span class="c">// This exception is usually thrown by browsers</span>
       
   283 <span class="c"></span>				<span class="c">// that do not support native XDR transactions.</span>
       
   284 <span class="c"></span>				<span class="k">return</span> <span class="nx">_resend</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   285 			<span class="o">}</span>
       
   286 		<span class="o">}</span>
       
   287 
       
   288    		<span class="nx">_ioStart</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   289    		<span class="c">// If config.timeout is defined, and the request is standard XHR,</span>
       
   290 <span class="c"></span>   		<span class="c">// initialize timeout polling.</span>
       
   291 <span class="c"></span>   		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">timeout</span><span class="o">)</span> <span class="o">{</span>
       
   292    			<span class="nx">_startTimeout</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">.</span><span class="nx">timeout</span><span class="o">);</span>
       
   293    		<span class="o">}</span>
       
   294 
       
   295 		<span class="k">return</span> <span class="o">{</span>
       
   296 			<span class="nx">id</span><span class="o">:</span> <span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span>
       
   297 			<span class="nx">abort</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   298 				<span class="k">return</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">?</span> <span class="nx">_ioCancel</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="s1">&#39;abort&#39;</span><span class="o">)</span> <span class="o">:</span> <span class="kc">false</span><span class="o">;</span>
       
   299 			<span class="o">},</span>
       
   300 			<span class="nx">isInProgress</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   301 				<span class="k">return</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">?</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">readyState</span> <span class="o">!==</span> <span class="m">4</span> <span class="o">&amp;&amp;</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">readyState</span> <span class="o">!==</span> <span class="m">0</span> <span class="o">:</span> <span class="kc">false</span><span class="o">;</span>
       
   302 	   		<span class="o">}</span>
       
   303 		<span class="o">}</span>
       
   304    	<span class="o">}</span>
       
   305 
       
   306    <span class="c">/**</span>
       
   307 <span class="c">   	* @description Method for creating and subscribing transaction events.</span>
       
   308 <span class="c">   	*</span>
       
   309 <span class="c">   	* @method _subscribe</span>
       
   310 <span class="c">   	* @private</span>
       
   311 <span class="c">   	* @static</span>
       
   312 <span class="c">   	* @param {string} e - event to be published</span>
       
   313 <span class="c">   	* @param {object} c - configuration data subset for event subscription.</span>
       
   314 <span class="c">   	*</span>
       
   315 <span class="c">	* @return void</span>
       
   316 <span class="c">   	*/</span>
       
   317    	<span class="k">function</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="nx">e</span><span class="o">,</span> <span class="nx">c</span><span class="o">){</span>
       
   318    		<span class="k">var</span> <span class="nx">evt</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">EventTarget</span><span class="o">().</span><span class="nx">publish</span><span class="o">(</span><span class="s1">&#39;transaction:&#39;</span> <span class="o">+</span> <span class="nx">e</span><span class="o">);</span>
       
   319 		<span class="nx">evt</span><span class="o">.</span><span class="nx">subscribe</span><span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">[</span><span class="nx">e</span><span class="o">],</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">context</span> <span class="o">||</span> <span class="nx">Y</span><span class="o">),</span> <span class="nx">c</span><span class="o">.</span><span class="nx">arguments</span><span class="o">);</span>
       
   320 
       
   321    		<span class="k">return</span> <span class="nx">evt</span><span class="o">;</span>
       
   322    	<span class="o">}</span>
       
   323 
       
   324    <span class="c">/**</span>
       
   325 <span class="c">   	* @description Fires event &quot;io:start&quot; and creates, fires a</span>
       
   326 <span class="c">   	* transaction-specific start event, if config.on.start is</span>
       
   327 <span class="c">   	* defined.</span>
       
   328 <span class="c">   	*</span>
       
   329 <span class="c">   	* @method _ioStart</span>
       
   330 <span class="c">   	* @private</span>
       
   331 <span class="c">   	* @static</span>
       
   332 <span class="c">   	* @param {number} id - transaction id</span>
       
   333 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   334 <span class="c">   	*</span>
       
   335 <span class="c">    * @return void</span>
       
   336 <span class="c">   	*/</span>
       
   337    	<span class="k">function</span> <span class="nx">_ioStart</span><span class="o">(</span><span class="nx">id</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   338    		<span class="k">var</span> <span class="nx">evt</span><span class="o">;</span>
       
   339    			<span class="c">// Set default value of argument c, property &quot;on&quot; to Object if</span>
       
   340 <span class="c"></span>   			<span class="c">// the property is null or undefined.</span>
       
   341 <span class="c"></span>   			<span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">||</span> <span class="o">{};</span>
       
   342 
       
   343    		<span class="nx">Y</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">E_START</span><span class="o">,</span> <span class="nx">id</span><span class="o">);</span>
       
   344    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">.</span><span class="nx">start</span><span class="o">)</span> <span class="o">{</span>
       
   345    			<span class="nx">evt</span> <span class="o">=</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="s1">&#39;start&#39;</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   346    			<span class="nx">evt</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">id</span><span class="o">);</span>
       
   347    		<span class="o">}</span>
       
   348    	<span class="o">}</span>
       
   349 
       
   350 
       
   351    <span class="c">/**</span>
       
   352 <span class="c">   	* @description Fires event &quot;io:complete&quot; and creates, fires a</span>
       
   353 <span class="c">   	* transaction-specific &quot;complete&quot; event, if config.on.complete is</span>
       
   354 <span class="c">   	* defined.</span>
       
   355 <span class="c">   	*</span>
       
   356 <span class="c">   	* @method _ioComplete</span>
       
   357 <span class="c">   	* @private</span>
       
   358 <span class="c">   	* @static</span>
       
   359 <span class="c">   	* @param {object} o - transaction object.</span>
       
   360 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   361 <span class="c">   	*</span>
       
   362 <span class="c">    * @return void</span>
       
   363 <span class="c">   	*/</span>
       
   364    	<span class="k">function</span> <span class="nx">_ioComplete</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   365    		<span class="k">var</span> <span class="nx">evt</span><span class="o">,</span>
       
   366 			<span class="nx">r</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">status</span> <span class="o">?</span> <span class="o">{</span> <span class="nx">status</span><span class="o">:</span> <span class="m">0</span><span class="o">,</span> <span class="nx">statusText</span><span class="o">:</span> <span class="nx">o</span><span class="o">.</span><span class="nx">status</span> <span class="o">}</span> <span class="o">:</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">;</span>
       
   367    			<span class="c">// Set default value of argument c, property &quot;on&quot; to Object if</span>
       
   368 <span class="c"></span>   			<span class="c">// the property is null or undefined.</span>
       
   369 <span class="c"></span>   			<span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">||</span> <span class="o">{};</span>
       
   370 
       
   371    		<span class="nx">Y</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">E_COMPLETE</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">r</span><span class="o">);</span>
       
   372    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">.</span><span class="nx">complete</span><span class="o">)</span> <span class="o">{</span>
       
   373    			<span class="nx">evt</span> <span class="o">=</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="s1">&#39;complete&#39;</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   374    			<span class="nx">evt</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">r</span><span class="o">);</span>
       
   375    		<span class="o">}</span>
       
   376    	<span class="o">}</span>
       
   377 
       
   378    <span class="c">/**</span>
       
   379 <span class="c">   	* @description Fires event &quot;io:success&quot; and creates, fires a</span>
       
   380 <span class="c">   	* transaction-specific &quot;success&quot; event, if config.on.success is</span>
       
   381 <span class="c">   	* defined.</span>
       
   382 <span class="c">   	*</span>
       
   383 <span class="c">   	* @method _ioSuccess</span>
       
   384 <span class="c">   	* @private</span>
       
   385 <span class="c">   	* @static</span>
       
   386 <span class="c">   	* @param {object} o - transaction object.</span>
       
   387 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   388 <span class="c">   	*</span>
       
   389 <span class="c">    * @return void</span>
       
   390 <span class="c">   	*/</span>
       
   391    	<span class="k">function</span> <span class="nx">_ioSuccess</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   392    		<span class="k">var</span> <span class="nx">evt</span><span class="o">;</span>
       
   393    			<span class="c">// Set default value of argument c, property &quot;on&quot; to Object if</span>
       
   394 <span class="c"></span>   			<span class="c">// the property is null or undefined.</span>
       
   395 <span class="c"></span>   			<span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">||</span> <span class="o">{};</span>
       
   396 
       
   397    		<span class="nx">Y</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">E_SUCCESS</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">);</span>
       
   398    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">.</span><span class="nx">success</span><span class="o">)</span> <span class="o">{</span>
       
   399    			<span class="nx">evt</span> <span class="o">=</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="s1">&#39;success&#39;</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   400    			<span class="nx">evt</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">);</span>
       
   401    		<span class="o">}</span>
       
   402 
       
   403    		<span class="nx">_ioEnd</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   404    	<span class="o">}</span>
       
   405 
       
   406    <span class="c">/**</span>
       
   407 <span class="c">   	* @description Fires event &quot;io:failure&quot; and creates, fires a</span>
       
   408 <span class="c">   	* transaction-specific &quot;failure&quot; event, if config.on.failure is</span>
       
   409 <span class="c">   	* defined.</span>
       
   410 <span class="c">   	*</span>
       
   411 <span class="c">   	* @method _ioFailure</span>
       
   412 <span class="c">   	* @private</span>
       
   413 <span class="c">   	* @static</span>
       
   414 <span class="c">   	* @param {object} o - transaction object.</span>
       
   415 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   416 <span class="c">   	*</span>
       
   417 <span class="c">    * @return void</span>
       
   418 <span class="c">   	*/</span>
       
   419    	<span class="k">function</span> <span class="nx">_ioFailure</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   420    		<span class="k">var</span> <span class="nx">evt</span><span class="o">,</span>
       
   421  			<span class="nx">r</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">status</span> <span class="o">?</span> <span class="o">{</span> <span class="nx">status</span><span class="o">:</span> <span class="m">0</span><span class="o">,</span> <span class="nx">statusText</span><span class="o">:</span> <span class="nx">o</span><span class="o">.</span><span class="nx">status</span> <span class="o">}</span> <span class="o">:</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">;</span>
       
   422    			<span class="c">// Set default value of argument c, property &quot;on&quot; to Object if</span>
       
   423 <span class="c"></span>   			<span class="c">// the property is null or undefined.</span>
       
   424 <span class="c"></span>   			<span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">||</span> <span class="o">{};</span>
       
   425 
       
   426    		<span class="nx">Y</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">E_FAILURE</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">r</span><span class="o">);</span>
       
   427    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">.</span><span class="nx">failure</span><span class="o">)</span> <span class="o">{</span>
       
   428    			<span class="nx">evt</span> <span class="o">=</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="s1">&#39;failure&#39;</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   429    			<span class="nx">evt</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">,</span> <span class="nx">r</span><span class="o">);</span>
       
   430    		<span class="o">}</span>
       
   431 
       
   432    		<span class="nx">_ioEnd</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   433    	<span class="o">}</span>
       
   434 
       
   435    <span class="c">/**</span>
       
   436 <span class="c">   	* @description Fires event &quot;io:end&quot; and creates, fires a</span>
       
   437 <span class="c">   	* transaction-specific &quot;end&quot; event, if config.on.end is</span>
       
   438 <span class="c">   	* defined.</span>
       
   439 <span class="c">   	*</span>
       
   440 <span class="c">   	* @method _ioEnd</span>
       
   441 <span class="c">   	* @private</span>
       
   442 <span class="c">   	* @static</span>
       
   443 <span class="c">   	* @param {object} o - transaction object.</span>
       
   444 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   445 <span class="c">   	*</span>
       
   446 <span class="c">    * @return void</span>
       
   447 <span class="c">   	*/</span>
       
   448    	<span class="k">function</span> <span class="nx">_ioEnd</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   449    		<span class="k">var</span> <span class="nx">evt</span><span class="o">;</span>
       
   450    			<span class="c">// Set default value of argument c, property &quot;on&quot; to Object if</span>
       
   451 <span class="c"></span>   			<span class="c">// the property is null or undefined.</span>
       
   452 <span class="c"></span>   			<span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">=</span> <span class="nx">c</span><span class="o">.</span><span class="nx">on</span> <span class="o">||</span> <span class="o">{};</span>
       
   453 
       
   454    		<span class="nx">Y</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">E_END</span><span class="o">,</span> <span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">);</span>
       
   455    		<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">on</span><span class="o">.</span><span class="nx">end</span><span class="o">)</span> <span class="o">{</span>
       
   456    			<span class="nx">evt</span> <span class="o">=</span> <span class="nx">_subscribe</span><span class="o">(</span><span class="s1">&#39;end&#39;</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   457    			<span class="nx">evt</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">);</span>
       
   458    		<span class="o">}</span>
       
   459 
       
   460    		<span class="nx">_destroy</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span> <span class="o">?</span> <span class="kc">true</span> <span class="o">:</span> <span class="kc">false</span> <span class="o">);</span>
       
   461    	<span class="o">}</span>
       
   462 
       
   463    <span class="c">/**</span>
       
   464 <span class="c">   	* @description Terminates a transaction due to an explicit abort or</span>
       
   465 <span class="c">   	* timeout.</span>
       
   466 <span class="c">   	*</span>
       
   467 <span class="c">   	* @method _ioCancel</span>
       
   468 <span class="c">   	* @private</span>
       
   469 <span class="c">   	* @static</span>
       
   470 <span class="c">	* @param {object} o - Transaction object generated by _create().</span>
       
   471 <span class="c">	* @param {string} s - Identifies timed out or aborted transaction.</span>
       
   472 <span class="c">   	*</span>
       
   473 <span class="c">    * @return void</span>
       
   474 <span class="c">   	*/</span>
       
   475    	<span class="k">function</span> <span class="nx">_ioCancel</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">s</span><span class="o">)</span> <span class="o">{</span>
       
   476    		<span class="k">if</span> <span class="o">(</span><span class="nx">o</span> <span class="o">&amp;&amp;</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   477    			<span class="nx">o</span><span class="o">.</span><span class="nx">status</span> <span class="o">=</span> <span class="nx">s</span><span class="o">;</span>
       
   478    			<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">abort</span><span class="o">();</span>
       
   479    		<span class="o">}</span>
       
   480    	<span class="o">}</span>
       
   481 
       
   482    <span class="c">/**</span>
       
   483 <span class="c">   	* @description Resends an XDR transaction, using the Flash tranport,</span>
       
   484 <span class="c">   	* if the native transport fails.</span>
       
   485 <span class="c">   	*</span>
       
   486 <span class="c">   	* @method _resend</span>
       
   487 <span class="c">   	* @private</span>
       
   488 <span class="c">   	* @static</span>
       
   489 <span class="c"></span>
       
   490 <span class="c">	* @param {object} o - Transaction object generated by _create().</span>
       
   491 <span class="c">	* @param {string} uri - qualified path to transaction resource.</span>
       
   492 <span class="c">   	* @param {object} c - configuration object for the transaction.</span>
       
   493 <span class="c">   	*</span>
       
   494 <span class="c">    * @return void</span>
       
   495 <span class="c">   	*/</span>
       
   496 	<span class="k">function</span> <span class="nx">_resend</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   497 		<span class="k">var</span> <span class="nx">id</span> <span class="o">=</span> <span class="nb">parseInt</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">);</span>
       
   498 
       
   499 		<span class="nx">_destroy</span><span class="o">(</span><span class="nx">o</span><span class="o">);</span>
       
   500 		<span class="nx">c</span><span class="o">.</span><span class="nx">xdr</span><span class="o">.</span><span class="nx">use</span> <span class="o">=</span> <span class="s1">&#39;flash&#39;</span><span class="o">;</span>
       
   501 
       
   502 		<span class="k">return</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">(</span><span class="nx">uri</span><span class="o">,</span> <span class="nx">c</span><span class="o">,</span> <span class="nx">id</span><span class="o">);</span>
       
   503 	<span class="o">}</span>
       
   504 
       
   505    <span class="c">/**</span>
       
   506 <span class="c">   	* @description Method that increments _transactionId for each transaction.</span>
       
   507 <span class="c">   	*</span>
       
   508 <span class="c">   	* @method _id</span>
       
   509 <span class="c">   	* @private</span>
       
   510 <span class="c">   	* @static</span>
       
   511 <span class="c">    * @return int</span>
       
   512 <span class="c">   	*/</span>
       
   513    	<span class="k">function</span> <span class="nx">_id</span><span class="o">()</span> <span class="o">{</span>
       
   514    		<span class="k">var</span> <span class="nx">id</span> <span class="o">=</span> <span class="nx">transactionId</span><span class="o">;</span>
       
   515 
       
   516    		<span class="nx">transactionId</span><span class="o">++;</span>
       
   517 
       
   518    		<span class="k">return</span> <span class="nx">id</span><span class="o">;</span>
       
   519    	<span class="o">}</span>
       
   520 
       
   521    <span class="c">/**</span>
       
   522 <span class="c">   	* @description Method that creates a unique transaction object for each</span>
       
   523 <span class="c">   	* request.</span>
       
   524 <span class="c">   	*</span>
       
   525 <span class="c">   	* @method _create</span>
       
   526 <span class="c">   	* @private</span>
       
   527 <span class="c">   	* @static</span>
       
   528 <span class="c">	* @param {number} c - configuration object subset to determine if</span>
       
   529 <span class="c">	*                     the transaction is an XDR or file upload,</span>
       
   530 <span class="c">	*                     requiring an alternate transport.</span>
       
   531 <span class="c">	* @param {number} i - transaction id</span>
       
   532 <span class="c">	* @return object</span>
       
   533 <span class="c">   	*/</span>
       
   534    	<span class="k">function</span> <span class="nx">_create</span><span class="o">(</span><span class="nx">c</span><span class="o">,</span> <span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   535    		<span class="k">var</span> <span class="nx">o</span> <span class="o">=</span> <span class="o">{};</span>
       
   536 	   		<span class="nx">o</span><span class="o">.</span><span class="nx">id</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">.</span><span class="nx">isNumber</span><span class="o">(</span><span class="nx">i</span><span class="o">)</span> <span class="o">?</span> <span class="nx">i</span> <span class="o">:</span> <span class="nx">_id</span><span class="o">();</span>
       
   537 	   		<span class="nx">c</span> <span class="o">=</span> <span class="nx">c</span> <span class="o">||</span> <span class="o">{};</span>
       
   538 
       
   539 		<span class="k">if</span> <span class="o">(!</span><span class="nx">c</span><span class="o">.</span><span class="nx">use</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="nx">c</span><span class="o">.</span><span class="nx">upload</span><span class="o">)</span> <span class="o">{</span>
       
   540    			<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="nx">_xhr</span><span class="o">();</span>
       
   541 		<span class="o">}</span>
       
   542    		<span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">use</span><span class="o">)</span> <span class="o">{</span>
       
   543 			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">use</span> <span class="o">===</span> <span class="s1">&#39;flash&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   544    				<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">_transport</span><span class="o">[</span><span class="nx">c</span><span class="o">.</span><span class="nx">use</span><span class="o">];</span>
       
   545 			<span class="o">}</span>
       
   546 			<span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">use</span> <span class="o">===</span> <span class="s1">&#39;native&#39;</span> <span class="o">&amp;&amp;</span> <span class="nb">window</span><span class="o">.</span><span class="nx">XDomainRequest</span><span class="o">)</span> <span class="o">{</span>
       
   547 				<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">XDomainRequest</span><span class="o">();</span>
       
   548 			<span class="o">}</span>
       
   549 			<span class="k">else</span> <span class="o">{</span>
       
   550 				<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="nx">_xhr</span><span class="o">();</span>
       
   551 			<span class="o">}</span>
       
   552    		<span class="o">}</span>
       
   553    		<span class="k">else</span> <span class="o">{</span>
       
   554    			<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="o">{};</span>
       
   555    		<span class="o">}</span>
       
   556 
       
   557    		<span class="k">return</span> <span class="nx">o</span><span class="o">;</span>
       
   558    	<span class="o">};</span>
       
   559 
       
   560    <span class="c">/**</span>
       
   561 <span class="c">   	* @description Method that creates the XMLHttpRequest transport</span>
       
   562 <span class="c">   	*</span>
       
   563 <span class="c">   	* @method _xhr</span>
       
   564 <span class="c">   	* @private</span>
       
   565 <span class="c">   	* @static</span>
       
   566 <span class="c">	* @return object</span>
       
   567 <span class="c">   	*/</span>
       
   568    	<span class="k">function</span> <span class="nx">_xhr</span><span class="o">()</span> <span class="o">{</span>
       
   569    		<span class="k">return</span> <span class="nx">w</span><span class="o">.</span><span class="nx">XMLHttpRequest</span> <span class="o">?</span> <span class="k">new</span> <span class="nx">XMLHttpRequest</span><span class="o">()</span> <span class="o">:</span> <span class="k">new</span> <span class="nx">ActiveXObject</span><span class="o">(</span><span class="s1">&#39;Microsoft.XMLHTTP&#39;</span><span class="o">);</span>
       
   570    	<span class="o">}</span>
       
   571 
       
   572    <span class="c">/**</span>
       
   573 <span class="c">   	* @description Method that concatenates string data for HTTP GET transactions.</span>
       
   574 <span class="c">   	*</span>
       
   575 <span class="c">   	* @method _concat</span>
       
   576 <span class="c">   	* @private</span>
       
   577 <span class="c">   	* @static</span>
       
   578 <span class="c">	* @param {string} s - URI or root data.</span>
       
   579 <span class="c">	* @param {string} d - data to be concatenated onto URI.</span>
       
   580 <span class="c">	* @return int</span>
       
   581 <span class="c">   	*/</span>
       
   582    	<span class="k">function</span> <span class="nx">_concat</span><span class="o">(</span><span class="nx">s</span><span class="o">,</span> <span class="nx">d</span><span class="o">)</span> <span class="o">{</span>
       
   583    		<span class="nx">s</span> <span class="o">+=</span> <span class="o">((</span><span class="nx">s</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="s1">&#39;?&#39;</span><span class="o">)</span> <span class="o">==</span> <span class="o">-</span><span class="m">1</span><span class="o">)</span> <span class="o">?</span> <span class="s1">&#39;?&#39;</span> <span class="o">:</span> <span class="s1">&#39;&amp;&#39;</span><span class="o">)</span> <span class="o">+</span> <span class="nx">d</span><span class="o">;</span>
       
   584    		<span class="k">return</span> <span class="nx">s</span><span class="o">;</span>
       
   585    	<span class="o">}</span>
       
   586 
       
   587    <span class="c">/**</span>
       
   588 <span class="c">   	* @description Method that stores default client headers for all transactions.</span>
       
   589 <span class="c">   	* If a label is passed with no value argument, the header will be deleted.</span>
       
   590 <span class="c">   	*</span>
       
   591 <span class="c">   	* @method _setHeader</span>
       
   592 <span class="c">   	* @private</span>
       
   593 <span class="c">   	* @static</span>
       
   594 <span class="c">	* @param {string} l - HTTP header</span>
       
   595 <span class="c">	* @param {string} v - HTTP header value</span>
       
   596 <span class="c">	* @return int</span>
       
   597 <span class="c">   	*/</span>
       
   598    	<span class="k">function</span> <span class="nx">_setHeader</span><span class="o">(</span><span class="nx">l</span><span class="o">,</span> <span class="nx">v</span><span class="o">)</span> <span class="o">{</span>
       
   599    		<span class="k">if</span> <span class="o">(</span><span class="nx">v</span><span class="o">)</span> <span class="o">{</span>
       
   600    			<span class="nx">_headers</span><span class="o">[</span><span class="nx">l</span><span class="o">]</span> <span class="o">=</span> <span class="nx">v</span><span class="o">;</span>
       
   601    		<span class="o">}</span>
       
   602    		<span class="k">else</span> <span class="o">{</span>
       
   603    			<span class="nx">delete</span> <span class="nx">_headers</span><span class="o">[</span><span class="nx">l</span><span class="o">];</span>
       
   604    		<span class="o">}</span>
       
   605    	<span class="o">}</span>
       
   606 
       
   607    <span class="c">/**</span>
       
   608 <span class="c">   	* @description Method that sets all HTTP headers to be sent in a transaction.</span>
       
   609 <span class="c">   	*</span>
       
   610 <span class="c">   	* @method _setHeaders</span>
       
   611 <span class="c">   	* @private</span>
       
   612 <span class="c">   	* @static</span>
       
   613 <span class="c">	* @param {object} o - XHR instance for the specific transaction.</span>
       
   614 <span class="c">	* @param {object} h - HTTP headers for the specific transaction, as defined</span>
       
   615 <span class="c">	*                     in the configuration object passed to YUI.io().</span>
       
   616 <span class="c">	* @return void</span>
       
   617 <span class="c">   	*/</span>
       
   618    	<span class="k">function</span> <span class="nx">_setHeaders</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">h</span><span class="o">)</span> <span class="o">{</span>
       
   619    		<span class="k">var</span> <span class="nx">p</span><span class="o">;</span>
       
   620 
       
   621    		<span class="k">for</span> <span class="o">(</span><span class="nx">p</span> <span class="k">in</span> <span class="nx">_headers</span><span class="o">)</span> <span class="o">{</span>
       
   622    			<span class="k">if</span> <span class="o">(</span><span class="nx">_headers</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">p</span><span class="o">))</span> <span class="o">{</span>
       
   623    				<span class="k">if</span> <span class="o">(</span><span class="nx">h</span><span class="o">[</span><span class="nx">p</span><span class="o">])</span> <span class="o">{</span>
       
   624    					<span class="c">// Configuration headers will supersede IO preset headers,</span>
       
   625 <span class="c"></span>   					<span class="c">// if headers match.</span>
       
   626 <span class="c"></span>   					<span class="k">break</span><span class="o">;</span>
       
   627    				<span class="o">}</span>
       
   628    				<span class="k">else</span> <span class="o">{</span>
       
   629    					<span class="nx">h</span><span class="o">[</span><span class="nx">p</span><span class="o">]</span> <span class="o">=</span> <span class="nx">_headers</span><span class="o">[</span><span class="nx">p</span><span class="o">];</span>
       
   630    				<span class="o">}</span>
       
   631    			<span class="o">}</span>
       
   632    		<span class="o">}</span>
       
   633 
       
   634    		<span class="k">for</span> <span class="o">(</span><span class="nx">p</span> <span class="k">in</span> <span class="nx">h</span><span class="o">)</span> <span class="o">{</span>
       
   635    			<span class="k">if</span> <span class="o">(</span><span class="nx">h</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">p</span><span class="o">))</span> <span class="o">{</span>
       
   636    				<span class="nx">o</span><span class="o">.</span><span class="nx">setRequestHeader</span><span class="o">(</span><span class="nx">p</span><span class="o">,</span> <span class="nx">h</span><span class="o">[</span><span class="nx">p</span><span class="o">]);</span>
       
   637    			<span class="o">}</span>
       
   638    		<span class="o">}</span>
       
   639    	<span class="o">}</span>
       
   640 
       
   641    <span class="c">/**</span>
       
   642 <span class="c">   	* @description Starts timeout count if the configuration object</span>
       
   643 <span class="c">   	* has a defined timeout property.</span>
       
   644 <span class="c">   	*</span>
       
   645 <span class="c">   	* @method _startTimeout</span>
       
   646 <span class="c">   	* @private</span>
       
   647 <span class="c">   	* @static</span>
       
   648 <span class="c">	* @param {object} o - Transaction object generated by _create().</span>
       
   649 <span class="c">	* @param {object} c - Configuration object passed to YUI.io().</span>
       
   650 <span class="c">	* @return void</span>
       
   651 <span class="c">   	*/</span>
       
   652    	<span class="k">function</span> <span class="nx">_startTimeout</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">timeout</span><span class="o">)</span> <span class="o">{</span>
       
   653    		<span class="nx">_timeout</span><span class="o">[</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">]</span> <span class="o">=</span> <span class="nx">w</span><span class="o">.</span><span class="nx">setTimeout</span><span class="o">(</span><span class="k">function</span><span class="o">()</span> <span class="o">{</span> <span class="nx">_ioCancel</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="s1">&#39;timeout&#39;</span><span class="o">);</span> <span class="o">},</span> <span class="nx">timeout</span><span class="o">);</span>
       
   654    	<span class="o">}</span>
       
   655 
       
   656    <span class="c">/**</span>
       
   657 <span class="c">   	* @description Clears the timeout interval started by _startTimeout().</span>
       
   658 <span class="c">   	*</span>
       
   659 <span class="c">   	* @method _clearTimeout</span>
       
   660 <span class="c">   	* @private</span>
       
   661 <span class="c">   	* @static</span>
       
   662 <span class="c">	* @param {number} id - Transaction id.</span>
       
   663 <span class="c">	* @return void</span>
       
   664 <span class="c">   	*/</span>
       
   665    	<span class="k">function</span> <span class="nx">_clearTimeout</span><span class="o">(</span><span class="nx">id</span><span class="o">)</span> <span class="o">{</span>
       
   666    		<span class="nx">w</span><span class="o">.</span><span class="nx">clearTimeout</span><span class="o">(</span><span class="nx">_timeout</span><span class="o">[</span><span class="nx">id</span><span class="o">]);</span>
       
   667    		<span class="nx">delete</span> <span class="nx">_timeout</span><span class="o">[</span><span class="nx">id</span><span class="o">];</span>
       
   668    	<span class="o">}</span>
       
   669 
       
   670    <span class="c">/**</span>
       
   671 <span class="c">   	* @description Event handler bound to onreadystatechange.</span>
       
   672 <span class="c">   	*</span>
       
   673 <span class="c">   	* @method _readyState</span>
       
   674 <span class="c">   	* @private</span>
       
   675 <span class="c">   	* @static</span>
       
   676 <span class="c">	* @param {object} o - Transaction object generated by _create().</span>
       
   677 <span class="c">	* @param {object} c - Configuration object passed to YUI.io().</span>
       
   678 <span class="c">	* @return void</span>
       
   679 <span class="c">   	*/</span>
       
   680    	<span class="k">function</span> <span class="nx">_readyState</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   681    		<span class="k">if</span> <span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">readyState</span> <span class="o">===</span> <span class="m">4</span><span class="o">)</span> <span class="o">{</span>
       
   682    			<span class="k">if</span> <span class="o">(</span><span class="nx">c</span><span class="o">.</span><span class="nx">timeout</span><span class="o">)</span> <span class="o">{</span>
       
   683    				<span class="nx">_clearTimeout</span><span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">id</span><span class="o">);</span>
       
   684    			<span class="o">}</span>
       
   685 
       
   686    			<span class="nx">w</span><span class="o">.</span><span class="nx">setTimeout</span><span class="o">(</span>
       
   687    				<span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   688    					<span class="nx">_ioComplete</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   689    					<span class="nx">_handleResponse</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   690    				<span class="o">},</span> <span class="m">0</span><span class="o">);</span>
       
   691    		<span class="o">}</span>
       
   692    	<span class="o">}</span>
       
   693 
       
   694    <span class="c">/**</span>
       
   695 <span class="c">   	* @description Method that determines if a transaction response qualifies</span>
       
   696 <span class="c">   	* as success or failure, based on the response HTTP status code, and</span>
       
   697 <span class="c">   	* fires the appropriate success or failure events.</span>
       
   698 <span class="c">   	*</span>
       
   699 <span class="c">   	* @method _handleResponse</span>
       
   700 <span class="c">   	* @private</span>
       
   701 <span class="c">   	* @static</span>
       
   702 <span class="c">	* @param {object} o - Transaction object generated by _create().</span>
       
   703 <span class="c">	* @param {object} c - Configuration object passed to io().</span>
       
   704 <span class="c">	* @return void</span>
       
   705 <span class="c">   	*/</span>
       
   706    	<span class="k">function</span> <span class="nx">_handleResponse</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   707    		<span class="k">var</span> <span class="nx">status</span><span class="o">;</span>
       
   708    		<span class="k">try</span><span class="o">{</span>
       
   709    			<span class="k">if</span> <span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">status</span> <span class="o">&amp;&amp;</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">status</span> <span class="o">!==</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
       
   710    				<span class="nx">status</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">status</span><span class="o">;</span>
       
   711    			<span class="o">}</span>
       
   712    			<span class="k">else</span> <span class="o">{</span>
       
   713    				<span class="nx">status</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   714    			<span class="o">}</span>
       
   715    		<span class="o">}</span>
       
   716    		<span class="k">catch</span><span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   717    			<span class="nx">status</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   718    		<span class="o">}</span>
       
   719 
       
   720    		<span class="c">// IE reports HTTP 204 as HTTP 1223.</span>
       
   721 <span class="c"></span>   		<span class="k">if</span> <span class="o">(</span><span class="nx">status</span> <span class="o">&gt;=</span> <span class="m">200</span> <span class="o">&amp;&amp;</span> <span class="nx">status</span> <span class="o">&lt;</span> <span class="m">300</span> <span class="o">||</span> <span class="nx">status</span> <span class="o">===</span> <span class="m">1223</span><span class="o">)</span> <span class="o">{</span>
       
   722    			<span class="nx">_ioSuccess</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   723    		<span class="o">}</span>
       
   724    		<span class="k">else</span> <span class="o">{</span>
       
   725    			<span class="nx">_ioFailure</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">c</span><span class="o">);</span>
       
   726    		<span class="o">}</span>
       
   727    	<span class="o">}</span>
       
   728 
       
   729    	<span class="k">function</span> <span class="nx">_destroy</span><span class="o">(</span><span class="nx">o</span><span class="o">,</span> <span class="nx">transport</span><span class="o">)</span> <span class="o">{</span>
       
   730    		<span class="c">// IE, when using XMLHttpRequest as an ActiveX Object, will throw</span>
       
   731 <span class="c"></span>   		<span class="c">// a &quot;Type Mismatch&quot; error if the event handler is set to &quot;null&quot;.</span>
       
   732 <span class="c"></span>   		<span class="k">if</span><span class="o">(</span><span class="nx">w</span><span class="o">.</span><span class="nx">XMLHttpRequest</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="nx">transport</span><span class="o">)</span> <span class="o">{</span>
       
   733    			<span class="k">if</span> <span class="o">(</span><span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">)</span> <span class="o">{</span>
       
   734    				<span class="nx">o</span><span class="o">.</span><span class="nx">c</span><span class="o">.</span><span class="nx">onreadystatechange</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
       
   735    			<span class="o">}</span>
       
   736    		<span class="o">}</span>
       
   737 
       
   738    		<span class="nx">o</span><span class="o">.</span><span class="nx">c</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
       
   739    		<span class="nx">o</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
       
   740    	<span class="o">}</span>
       
   741 
       
   742    	<span class="nx">_io</span><span class="o">.</span><span class="nx">start</span> <span class="o">=</span> <span class="nx">_ioStart</span><span class="o">;</span>
       
   743 	<span class="nx">_io</span><span class="o">.</span><span class="nx">complete</span> <span class="o">=</span> <span class="nx">_ioComplete</span><span class="o">;</span>
       
   744    	<span class="nx">_io</span><span class="o">.</span><span class="nx">success</span> <span class="o">=</span> <span class="nx">_ioSuccess</span><span class="o">;</span>
       
   745    	<span class="nx">_io</span><span class="o">.</span><span class="nx">failure</span> <span class="o">=</span> <span class="nx">_ioFailure</span><span class="o">;</span>
       
   746    	<span class="nx">_io</span><span class="o">.</span><span class="nx">end</span> <span class="o">=</span> <span class="nx">_ioEnd</span><span class="o">;</span>
       
   747    	<span class="nx">_io</span><span class="o">.</span><span class="nx">_id</span> <span class="o">=</span> <span class="nx">_id</span><span class="o">;</span>
       
   748    	<span class="nx">_io</span><span class="o">.</span><span class="nx">_timeout</span> <span class="o">=</span> <span class="nx">_timeout</span><span class="o">;</span>
       
   749 
       
   750 	<span class="c">//--------------------------------------</span>
       
   751 <span class="c"></span>	<span class="c">//  Begin public interface definition</span>
       
   752 <span class="c"></span>	<span class="c">//--------------------------------------</span>
       
   753 <span class="c"></span>   <span class="c">/**</span>
       
   754 <span class="c">   	* @description Method that stores default client headers for all transactions.</span>
       
   755 <span class="c">   	* If a label is passed with no value argument, the header will be deleted.</span>
       
   756 <span class="c">   	* This is the interface for _setHeader().</span>
       
   757 <span class="c">   	*</span>
       
   758 <span class="c">   	* @method header</span>
       
   759 <span class="c">   	* @public</span>
       
   760 <span class="c">   	* @static</span>
       
   761 <span class="c">	* @param {string} l - HTTP header</span>
       
   762 <span class="c">	* @param {string} v - HTTP header value</span>
       
   763 <span class="c">	* @return int</span>
       
   764 <span class="c">   	*/</span>
       
   765    	<span class="nx">_io</span><span class="o">.</span><span class="nx">header</span> <span class="o">=</span> <span class="nx">_setHeader</span><span class="o">;</span>
       
   766 
       
   767    <span class="c">/**</span>
       
   768 <span class="c">   	* @description Method for requesting a transaction. This</span>
       
   769 <span class="c">   	* is the interface for _io().</span>
       
   770 <span class="c">   	*</span>
       
   771 <span class="c">   	* @method io</span>
       
   772 <span class="c">   	* @public</span>
       
   773 <span class="c">   	* @static</span>
       
   774 <span class="c">    * @param {string} uri - qualified path to transaction resource.</span>
       
   775 <span class="c">    * @param {object} c - configuration object for the transaction.</span>
       
   776 <span class="c">    * @return object</span>
       
   777 <span class="c">    */</span>
       
   778    	<span class="nx">Y</span><span class="o">.</span><span class="nx">io</span> <span class="o">=</span> <span class="nx">_io</span><span class="o">;</span>
       
   779 	<span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">http</span> <span class="o">=</span> <span class="nx">_io</span><span class="o">;</span>
       
   780 </pre></div>
       
   781 
       
   782                     </div>
       
   783 			</div>
       
   784 		</div>
       
   785 		<div class="yui-b">
       
   786             <div class="nav">
       
   787 
       
   788                     <div id="moduleList" class="module">
       
   789                         <h4>Modules</h4>
       
   790                         <ul class="content">
       
   791                                 <li class=""><a href="module_anim.html" title="anim">anim</a></li>
       
   792                                 <li class=""><a href="module_async-queue.html" title="async-queue">async-queue</a></li>
       
   793                                 <li class=""><a href="module_attribute.html" title="attribute">attribute</a></li>
       
   794                                 <li class=""><a href="module_base.html" title="base">base</a></li>
       
   795                                 <li class=""><a href="module_cache.html" title="cache">cache</a></li>
       
   796                                 <li class=""><a href="module_classnamemanager.html" title="classnamemanager">classnamemanager</a></li>
       
   797                                 <li class=""><a href="module_collection.html" title="collection">collection</a></li>
       
   798                                 <li class=""><a href="module_console.html" title="console">console</a></li>
       
   799                                 <li class=""><a href="module_console-filters.html" title="console-filters">console-filters</a></li>
       
   800                                 <li class=""><a href="module_cookie.html" title="cookie">cookie</a></li>
       
   801                                 <li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li>
       
   802                                 <li class=""><a href="module_datasource.html" title="datasource">datasource</a></li>
       
   803                                 <li class=""><a href="module_datatype.html" title="datatype">datatype</a></li>
       
   804                                 <li class=""><a href="module_dd.html" title="dd">dd</a></li>
       
   805                                 <li class=""><a href="module_dom.html" title="dom">dom</a></li>
       
   806                                 <li class=""><a href="module_dump.html" title="dump">dump</a></li>
       
   807                                 <li class=""><a href="module_event.html" title="event">event</a></li>
       
   808                                 <li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li>
       
   809                                 <li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li>
       
   810                                 <li class=""><a href="module_history.html" title="history">history</a></li>
       
   811                                 <li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li>
       
   812                                 <li class="selected"><a href="module_io.html" title="io">io</a></li>
       
   813                                 <li class=""><a href="module_json.html" title="json">json</a></li>
       
   814                                 <li class=""><a href="module_node.html" title="node">node</a></li>
       
   815                                 <li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li>
       
   816                                 <li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li>
       
   817                                 <li class=""><a href="module_oop.html" title="oop">oop</a></li>
       
   818                                 <li class=""><a href="module_overlay.html" title="overlay">overlay</a></li>
       
   819                                 <li class=""><a href="module_plugin.html" title="plugin">plugin</a></li>
       
   820                                 <li class=""><a href="module_profiler.html" title="profiler">profiler</a></li>
       
   821                                 <li class=""><a href="module_queue-promote.html" title="queue-promote">queue-promote</a></li>
       
   822                                 <li class=""><a href="module_slider.html" title="slider">slider</a></li>
       
   823                                 <li class=""><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li>
       
   824                                 <li class=""><a href="module_substitute.html" title="substitute">substitute</a></li>
       
   825                                 <li class=""><a href="module_test.html" title="test">test</a></li>
       
   826                                 <li class=""><a href="module_widget.html" title="widget">widget</a></li>
       
   827                                 <li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li>
       
   828                                 <li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li>
       
   829                                 <li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li>
       
   830                                 <li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li>
       
   831                                 <li class=""><a href="module_yui.html" title="yui">yui</a></li>
       
   832                         </ul>
       
   833                     </div>
       
   834 
       
   835                     <div id="classList" class="module">
       
   836                         <h4>Classes</h4>
       
   837                         <ul class="content">
       
   838                                 <li class=""><a href="io.html" title="io">io</a></li>
       
   839                         </ul>
       
   840                     </div>
       
   841 
       
   842                     <div id="fileList" class="module">
       
   843                         <h4>Files</h4>
       
   844                         <ul class="content">        
       
   845                                 <li class="selected"><a href="io-base.js.html" title="io-base.js">io-base.js</a></li>
       
   846                                 <li class=""><a href="io-form.js.html" title="io-form.js">io-form.js</a></li>
       
   847                                 <li class=""><a href="io-queue.js.html" title="io-queue.js">io-queue.js</a></li>
       
   848                                 <li class=""><a href="io-upload-iframe.js.html" title="io-upload-iframe.js">io-upload-iframe.js</a></li>
       
   849                                 <li class=""><a href="io-xdr.js.html" title="io-xdr.js">io-xdr.js</a></li>
       
   850                         </ul>
       
   851                     </div>
       
   852 
       
   853 
       
   854 
       
   855 
       
   856 
       
   857             </div>
       
   858 		</div>
       
   859 	</div>
       
   860 	<div id="ft">
       
   861         <hr />
       
   862         Copyright &copy; 2009 Yahoo! Inc. All rights reserved.
       
   863 	</div>
       
   864 </div>
       
   865 <script type="text/javascript">
       
   866     ALL_YUI_PROPS = [{"access": "private", "host": "io", "name": "_abort", "url": "io.html#method__abort", "type": "method"}, {"access": "private", "host": "io", "name": "appendData", "url": "io.html#method_appendData", "type": "method"}, {"access": "private", "host": "io", "name": "_clearTimeout", "url": "io.html#method__clearTimeout", "type": "method"}, {"access": "private", "host": "io", "name": "_concat", "url": "io.html#method__concat", "type": "method"}, {"access": "private", "host": "io", "name": "_create", "url": "io.html#method__create", "type": "method"}, {"access": "private", "host": "io", "name": "_data", "url": "io.html#method__data", "type": "method"}, {"access": "private", "host": "io", "name": "_destroy", "url": "io.html#method__destroy", "type": "method"}, {"access": "private", "host": "io", "name": "_e", "url": "io.html#property__e", "type": "property"}, {"access": "private", "host": "io", "name": "f", "url": "io.html#method_f", "type": "method"}, {"access": 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