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<h3>io <span class="subtitle">3.0.0</span></h3>
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> io-upload-iframe.js (source view)
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<div class="highlight" ><pre> <span class="c">/**</span>
<span class="c"> * Extends the IO base class to enable file uploads, with HTML forms,</span>
<span class="c"> * using an iframe as the transport medium.</span>
<span class="c"> * @module io</span>
<span class="c"> * @submodule io-upload-iframe</span>
<span class="c"> */</span>
<span class="k">var</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>
<span class="c">/**</span>
<span class="c"> * @description Parses the POST data object and creates hidden form elements</span>
<span class="c"> * for each key-value, and appends them to the HTML form object.</span>
<span class="c"> * @method appendData</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} f HTML form object.</span>
<span class="c"> * @param {string} s The key-value POST data.</span>
<span class="c"> * @return {array} e Array of created fields.</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_addData</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">s</span><span class="o">)</span> <span class="o">{</span>
<span class="k">var</span> <span class="nx">o</span> <span class="o">=</span> <span class="o">[],</span>
<span class="nx">m</span> <span class="o">=</span> <span class="nx">s</span><span class="o">.</span><span class="nx">split</span><span class="o">(</span><span class="s1">'='</span><span class="o">),</span>
<span class="nx">i</span><span class="o">,</span> <span class="nx">l</span><span class="o">;</span>
<span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">m</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">l</span><span class="o">;</span> <span class="nx">i</span><span class="o">++)</span> <span class="o">{</span>
<span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">]</span> <span class="o">=</span> <span class="nb">document</span><span class="o">.</span><span class="nx">createElement</span><span class="o">(</span><span class="s1">'input'</span><span class="o">);</span>
<span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">type</span> <span class="o">=</span> <span class="s1">'hidden'</span><span class="o">;</span>
<span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">name</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">substring</span><span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">lastIndexOf</span><span class="o">(</span><span class="s1">'&'</span><span class="o">)</span> <span class="o">+</span> <span class="m">1</span><span class="o">);</span>
<span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">value</span> <span class="o">=</span> <span class="o">(</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span> <span class="o">===</span> <span class="nx">l</span><span class="o">)</span> <span class="o">?</span> <span class="nx">m</span><span class="o">[</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span><span class="o">]</span> <span class="o">:</span> <span class="nx">m</span><span class="o">[</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span><span class="o">].</span><span class="nx">substring</span><span class="o">(</span><span class="m">0</span><span class="o">,</span> <span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span><span class="o">].</span><span class="nx">lastIndexOf</span><span class="o">(</span><span class="s1">'&'</span><span class="o">)));</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">appendChild</span><span class="o">(</span><span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">]);</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">'key: '</span> <span class="o">+</span> <span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">name</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">value</span> <span class="o">+</span> <span class="s1">' added as form data.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="o">}</span>
<span class="k">return</span> <span class="nx">o</span><span class="o">;</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description Removes the custom fields created to pass additional POST</span>
<span class="c"> * data, along with the HTML form fields.</span>
<span class="c"> * @method f</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} f HTML form object.</span>
<span class="c"> * @param {object} o HTML form fields created from configuration.data.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_removeData</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">o</span><span class="o">)</span> <span class="o">{</span>
<span class="k">var</span> <span class="nx">i</span><span class="o">,</span> <span class="nx">l</span><span class="o">;</span>
<span class="k">for</span><span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">o</span><span class="o">.</span><span class="nx">length</span><span class="o">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">l</span><span class="o">;</span> <span class="nx">i</span><span class="o">++){</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">removeChild</span><span class="o">(</span><span class="nx">o</span><span class="o">[</span><span class="nx">i</span><span class="o">]);</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description Sets the appropriate attributes and values to the HTML</span>
<span class="c"> * form, in preparation of a file upload transaction.</span>
<span class="c"> * @method _setAttrs</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} f HTML form object.</span>
<span class="c"> * @param {object} id The Transaction ID.</span>
<span class="c"> * @param {object} uri Qualified path to transaction resource.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_setAttrs</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">id</span><span class="o">,</span> <span class="nx">uri</span><span class="o">)</span> <span class="o">{</span>
<span class="k">var</span> <span class="nx">ie8</span> <span class="o">=</span> <span class="o">(</span><span class="nb">document</span><span class="o">.</span><span class="nx">documentMode</span> <span class="o">&&</span> <span class="nb">document</span><span class="o">.</span><span class="nx">documentMode</span> <span class="o">===</span> <span class="m">8</span><span class="o">)</span> <span class="o">?</span> <span class="kc">true</span> <span class="o">:</span> <span class="kc">false</span><span class="o">;</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">setAttribute</span><span class="o">(</span><span class="s1">'action'</span><span class="o">,</span> <span class="nx">uri</span><span class="o">);</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">setAttribute</span><span class="o">(</span><span class="s1">'method'</span><span class="o">,</span> <span class="s1">'POST'</span><span class="o">);</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">setAttribute</span><span class="o">(</span><span class="s1">'target'</span><span class="o">,</span> <span class="s1">'ioupload'</span> <span class="o">+</span> <span class="nx">id</span> <span class="o">);</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">setAttribute</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">UA</span><span class="o">.</span><span class="nx">ie</span> <span class="o">&&</span> <span class="o">!</span><span class="nx">ie8</span> <span class="o">?</span> <span class="s1">'encoding'</span> <span class="o">:</span> <span class="s1">'enctype'</span><span class="o">,</span> <span class="s1">'multipart/form-data'</span><span class="o">);</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description Sets the appropriate attributes and values to the HTML</span>
<span class="c"> * form, in preparation of a file upload transaction.</span>
<span class="c"> * @method _resetAttrs</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} f HTML form object.</span>
<span class="c"> * @param {object} a Object of original attributes.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_resetAttrs</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">a</span><span class="o">){</span>
<span class="k">var</span> <span class="nx">p</span><span class="o">;</span>
<span class="k">for</span> <span class="o">(</span><span class="nx">p</span> <span class="k">in</span> <span class="nx">a</span><span class="o">)</span> <span class="o">{</span>
<span class="k">if</span> <span class="o">(</span><span class="nx">a</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">a</span><span class="o">,</span> <span class="nx">p</span><span class="o">))</span> <span class="o">{</span>
<span class="k">if</span> <span class="o">(</span><span class="nx">a</span><span class="o">[</span><span class="nx">p</span><span class="o">])</span> <span class="o">{</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">setAttribute</span><span class="o">(</span><span class="nx">p</span><span class="o">,</span> <span class="nx">f</span><span class="o">[</span><span class="nx">p</span><span class="o">]);</span>
<span class="o">}</span>
<span class="k">else</span> <span class="o">{</span>
<span class="nx">f</span><span class="o">.</span><span class="nx">removeAttribute</span><span class="o">(</span><span class="nx">p</span><span class="o">);</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description Creates the iframe transported used in file upload</span>
<span class="c"> * transactions, and binds the response event handler.</span>
<span class="c"> *</span>
<span class="c"> * @method _create</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} o Transaction object generated by _create().</span>
<span class="c"> * @param {object} c Configuration object passed to YUI.io().</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_create</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>
<span class="k">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Node</span><span class="o">.</span><span class="nx">create</span><span class="o">(</span><span class="s1">'<iframe id="ioupload'</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="s1">'" name="ioupload'</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="s1">'" />'</span><span class="o">);</span>
<span class="nx">i</span><span class="o">.</span><span class="nx">_node</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">position</span> <span class="o">=</span> <span class="s1">'absolute'</span><span class="o">;</span>
<span class="nx">i</span><span class="o">.</span><span class="nx">_node</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">top</span> <span class="o">=</span> <span class="s1">'-1000px'</span><span class="o">;</span>
<span class="nx">i</span><span class="o">.</span><span class="nx">_node</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">left</span> <span class="o">=</span> <span class="s1">'-1000px'</span><span class="o">;</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'body'</span><span class="o">).</span><span class="nx">appendChild</span><span class="o">(</span><span class="nx">i</span><span class="o">);</span>
<span class="c">// Bind the onload handler to the iframe to detect the file upload response.</span>
<span class="c"></span> <span class="nx">Y</span><span class="o">.</span><span class="nx">on</span><span class="o">(</span><span class="s2">"load"</span><span class="o">,</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span> <span class="nx">_handle</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> <span class="s1">'#ioupload'</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="c">/**</span>
<span class="c"> * @description Bound to the iframe's Load event and processes</span>
<span class="c"> * the response data.</span>
<span class="c"> * @method _handle</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {o} o The transaction object</span>
<span class="c"> * @param {object} c Configuration object for the transaction.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_handle</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>
<span class="k">var</span> <span class="nx">d</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'#ioupload'</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">get</span><span class="o">(</span><span class="s1">'contentWindow.document'</span><span class="o">),</span>
<span class="nx">b</span> <span class="o">=</span> <span class="nx">d</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'body'</span><span class="o">),</span>
<span class="nx">xml</span> <span class="o">=</span> <span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">_node</span><span class="o">.</span><span class="nx">nodeType</span> <span class="o">===</span> <span class="m">9</span><span class="o">),</span>
<span class="nx">p</span><span class="o">;</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>
<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>
<span class="o">}</span>
<span class="k">if</span> <span class="o">(</span><span class="nx">b</span><span class="o">)</span> <span class="o">{</span>
<span class="c">// When a response Content-Type of "text/plain" is used, Firefox and Safari</span>
<span class="c"></span> <span class="c">// will wrap the response string with <pre></pre>.</span>
<span class="c"></span> <span class="nx">p</span> <span class="o">=</span> <span class="nx">b</span><span class="o">.</span><span class="nx">query</span><span class="o">(</span><span class="s1">'pre:first-child'</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">responseText</span> <span class="o">=</span> <span class="nx">p</span> <span class="o">?</span> <span class="nx">p</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">'innerHTML'</span><span class="o">)</span> <span class="o">:</span> <span class="nx">b</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">'innerHTML'</span><span class="o">);</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">'The responseText value for transaction '</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="s1">' is: '</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">responseText</span> <span class="o">+</span> <span class="s1">'.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="o">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">xml</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><span class="nx">responseXML</span> <span class="o">=</span> <span class="nx">d</span><span class="o">.</span><span class="nx">_node</span><span class="o">;</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">'The response for transaction '</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="s1">' is an XML document.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</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">complete</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">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">end</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="c">// The transaction is complete, so call _destroy to remove</span>
<span class="c"></span> <span class="c">// the event listener bound to the iframe transport, and then</span>
<span class="c"></span> <span class="c">// destroy the iframe.</span>
<span class="c"></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">_destroy</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="m">0</span><span class="o">);</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description Starts timeout count if the configuration object</span>
<span class="c"> * has a defined timeout property.</span>
<span class="c"> *</span>
<span class="c"> * @method _startTimeout</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {object} o Transaction object generated by _create().</span>
<span class="c"> * @param {object} c Configuration object passed to YUI.io().</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<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">c</span><span class="o">)</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">_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="k">var</span> <span class="nx">r</span> <span class="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">id</span><span class="o">,</span> <span class="nx">status</span><span class="o">:</span> <span class="s1">'timeout'</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">complete</span><span class="o">(</span><span class="nx">r</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">end</span><span class="o">(</span><span class="nx">r</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">log</span><span class="o">(</span><span class="s1">'Transaction '</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="s1">' timeout.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</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>
<span class="c">/**</span>
<span class="c"> * @description Clears the timeout interval started by _startTimeout().</span>
<span class="c"> * @method _clearTimeout</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {number} id - Transaction ID.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<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>
<span class="nx">w</span><span class="o">.</span><span class="nx">clearTimeout</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">_timeout</span><span class="o">[</span><span class="nx">id</span><span class="o">]);</span>
<span class="nx">delete</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">_timeout</span><span class="o">[</span><span class="nx">id</span><span class="o">];</span>
<span class="o">}</span>
<span class="c">/**</span>
<span class="c"> * @description</span>
<span class="c"> * @method _destroy</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {o} o The transaction object</span>
<span class="c"> * @param {object} uri Qualified path to transaction resource.</span>
<span class="c"> * @param {object} c Configuration object for the transaction.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="k">function</span> <span class="nx">_destroy</span><span class="o">(</span><span class="nx">id</span><span class="o">)</span> <span class="o">{</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">Event</span><span class="o">.</span><span class="nx">purgeElement</span><span class="o">(</span><span class="s1">'#ioupload'</span> <span class="o">+</span> <span class="nx">id</span><span class="o">,</span> <span class="kc">false</span><span class="o">);</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'body'</span><span class="o">).</span><span class="nx">removeChild</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'#ioupload'</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">log</span><span class="o">(</span><span class="s1">'The iframe transport for transaction '</span> <span class="o">+</span> <span class="nx">id</span> <span class="o">+</span> <span class="s1">' has been destroyed.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="o">}</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">mix</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="o">{</span>
<span class="c">/**</span>
<span class="c"> * @description Uploads HTML form data, inclusive of files/attachments,</span>
<span class="c"> * using the iframe created in _create to facilitate the transaction.</span>
<span class="c"> * @method _upload</span>
<span class="c"> * @private</span>
<span class="c"> * @static</span>
<span class="c"> * @param {o} o The transaction object</span>
<span class="c"> * @param {object} uri Qualified path to transaction resource.</span>
<span class="c"> * @param {object} c Configuration object for the transaction.</span>
<span class="c"> * @return {void}</span>
<span class="c"> */</span>
<span class="nx">_upload</span><span class="o">:</span> <span class="k">function</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>
<span class="k">var</span> <span class="nx">f</span> <span class="o">=</span> <span class="o">(</span><span class="k">typeof</span> <span class="nx">c</span><span class="o">.</span><span class="nx">form</span><span class="o">.</span><span class="nx">id</span> <span class="o">===</span> <span class="s1">'string'</span><span class="o">)</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">doc</span><span class="o">.</span><span class="nx">getElementById</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">id</span><span class="o">)</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">id</span><span class="o">,</span>
<span class="nx">fields</span><span class="o">,</span>
<span class="c">// Track original HTML form attribute values.</span>
<span class="c"></span> <span class="nx">attr</span> <span class="o">=</span> <span class="o">{</span>
<span class="nx">action</span><span class="o">:</span> <span class="nx">f</span><span class="o">.</span><span class="nx">getAttribute</span><span class="o">(</span><span class="s1">'action'</span><span class="o">),</span>
<span class="nx">target</span><span class="o">:</span> <span class="nx">f</span><span class="o">.</span><span class="nx">getAttribute</span><span class="o">(</span><span class="s1">'target'</span><span class="o">)</span>
<span class="o">};</span>
<span class="nx">_create</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="c">// Initialize the HTML form properties in case they are</span>
<span class="c"></span> <span class="c">// not defined in the HTML form.</span>
<span class="c"></span> <span class="nx">_setAttrs</span><span class="o">(</span><span class="nx">f</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">uri</span><span class="o">);</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">)</span> <span class="o">{</span>
<span class="nx">fields</span> <span class="o">=</span> <span class="nx">_addData</span><span class="o">(</span><span class="nx">f</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="o">}</span>
<span class="c">// Start polling if a callback is present and the timeout</span>
<span class="c"></span> <span class="c">// property has been defined.</span>
<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>
<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">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">'Transaction timeout started for transaction '</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="s1">'.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="o">}</span>
<span class="c">// Start file upload.</span>
<span class="c"></span> <span class="nx">f</span><span class="o">.</span><span class="nx">submit</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">start</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>
<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">)</span> <span class="o">{</span>
<span class="nx">_removeData</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">fields</span><span class="o">);</span>
<span class="o">}</span>
<span class="c">// Restore HTML form attributes to their original values.</span>
<span class="c"></span> <span class="nx">_resetAttrs</span><span class="o">(</span><span class="nx">f</span><span class="o">,</span> <span class="nx">attr</span><span class="o">);</span>
<span class="k">return</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">id</span><span class="o">,</span>
<span class="nx">abort</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
<span class="k">var</span> <span class="nx">r</span> <span class="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">id</span><span class="o">,</span> <span class="nx">status</span><span class="o">:</span> <span class="s1">'abort'</span> <span class="o">};</span>
<span class="k">if</span> <span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'#ioupload'</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">_destroy</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">Y</span><span class="o">.</span><span class="nx">io</span><span class="o">.</span><span class="nx">complete</span><span class="o">(</span><span class="nx">r</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">end</span><span class="o">(</span><span class="nx">r</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">log</span><span class="o">(</span><span class="s1">'Transaction '</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="s1">' aborted.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="o">}</span>
<span class="k">else</span> <span class="o">{</span>
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">'Attempted to abort transaction '</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="s1">' but transaction has completed.'</span><span class="o">,</span> <span class="s1">'info'</span><span class="o">,</span> <span class="s1">'io'</span><span class="o">);</span>
<span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
<span class="o">}</span>
<span class="o">},</span>
<span class="nx">isInProgress</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
<span class="k">return</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">one</span><span class="o">(</span><span class="s1">'#ioupload'</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="kc">true</span> <span class="o">:</span> <span class="kc">false</span><span class="o">;</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="o">}</span>
<span class="o">});</span>
</pre></div>
</div>
</div>
</div>
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<div class="nav">
<div id="moduleList" class="module">
<h4>Modules</h4>
<ul class="content">
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<li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li>
<li class=""><a href="module_datasource.html" title="datasource">datasource</a></li>
<li class=""><a href="module_datatype.html" title="datatype">datatype</a></li>
<li class=""><a href="module_dd.html" title="dd">dd</a></li>
<li class=""><a href="module_dom.html" title="dom">dom</a></li>
<li class=""><a href="module_dump.html" title="dump">dump</a></li>
<li class=""><a href="module_event.html" title="event">event</a></li>
<li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li>
<li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li>
<li class=""><a href="module_history.html" title="history">history</a></li>
<li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li>
<li class="selected"><a href="module_io.html" title="io">io</a></li>
<li class=""><a href="module_json.html" title="json">json</a></li>
<li class=""><a href="module_node.html" title="node">node</a></li>
<li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li>
<li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li>
<li class=""><a href="module_oop.html" title="oop">oop</a></li>
<li class=""><a href="module_overlay.html" title="overlay">overlay</a></li>
<li class=""><a href="module_plugin.html" title="plugin">plugin</a></li>
<li class=""><a href="module_profiler.html" title="profiler">profiler</a></li>
<li class=""><a href="module_queue-promote.html" title="queue-promote">queue-promote</a></li>
<li class=""><a href="module_slider.html" title="slider">slider</a></li>
<li class=""><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li>
<li class=""><a href="module_substitute.html" title="substitute">substitute</a></li>
<li class=""><a href="module_test.html" title="test">test</a></li>
<li class=""><a href="module_widget.html" title="widget">widget</a></li>
<li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li>
<li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li>
<li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li>
<li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li>
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</ul>
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<div id="classList" class="module">
<h4>Classes</h4>
<ul class="content">
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</ul>
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<div id="fileList" class="module">
<h4>Files</h4>
<ul class="content">
<li class=""><a href="io-base.js.html" title="io-base.js">io-base.js</a></li>
<li class=""><a href="io-form.js.html" title="io-form.js">io-form.js</a></li>
<li class=""><a href="io-queue.js.html" title="io-queue.js">io-queue.js</a></li>
<li class="selected"><a href="io-upload-iframe.js.html" title="io-upload-iframe.js">io-upload-iframe.js</a></li>
<li class=""><a href="io-xdr.js.html" title="io-xdr.js">io-xdr.js</a></li>
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<div id="ft">
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Copyright © 2009 Yahoo! Inc. All rights reserved.
</div>
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<script type="text/javascript">
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