class_c_web_client_engine.html

symbian 利用http上传的例子.

<a name="l00035"></a>00035     CleanupStack::Pop( <span class="keyword">self</span> );
<a name="l00036"></a>00036     <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00037"></a>00037     }
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<a class="anchor" name="57e22c490455b0b11d8c35b54c4abb61"></a><!-- doxytag: member="CWebClientEngine::NewLC" ref="57e22c490455b0b11d8c35b54c4abb61" args="(MWebClientObserver &amp;aObserver)" --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_c_web_client_engine.html">CWebClientEngine</a> * CWebClientEngine::NewLC           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="class_m_web_client_observer.html">MWebClientObserver</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>aObserver</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<a class="el" href="class_c_web_client_engine.html#57e22c490455b0b11d8c35b54c4abb61">NewLC()</a> Create a CWebClientEngine object. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>iObserver,:</em>&nbsp;</td><td></td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>A pointer to the created instance of CWebClientEngine </dd></dl>

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Definition at line <a class="el" href="_web_client_engine_8cpp-source.html#l00045">45</a> of file <a class="el" href="_web_client_engine_8cpp-source.html">WebClientEngine.cpp</a>.
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References <a class="el" href="_web_client_engine_8cpp-source.html#l00059">CWebClientEngine()</a>.<div class="fragment"><pre class="fragment"><a name="l00046"></a>00046     {
<a name="l00047"></a>00047     <a class="code" href="class_c_web_client_engine.html">CWebClientEngine</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_web_client_engine.html#32fe2a86e82c042cd514e8f576077b8c">CWebClientEngine</a>( aObserver );
<a name="l00048"></a>00048     CleanupStack::PushL( <span class="keyword">self</span> );
<a name="l00049"></a>00049     <span class="keyword">self</span>-&gt;ConstructL();
<a name="l00050"></a>00050     <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00051"></a>00051     }
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<a class="anchor" name="b0657f50d2303b5a4f15a7c3b15cbbdc"></a><!-- doxytag: member="CWebClientEngine::IssueHTTPGetL" ref="b0657f50d2303b5a4f15a7c3b15cbbdc" args="(const TDesC8 &amp;aUri)" --><p>
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          <td class="md" nowrap valign="top">void CWebClientEngine::IssueHTTPGetL           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const TDesC8 &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>aUri</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<a class="el" href="class_c_web_client_engine.html#b0657f50d2303b5a4f15a7c3b15cbbdc">IssueHTTPGetL()</a> Starts a new HTTP GET transaction. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>aUri,:</em>&nbsp;</td><td>URI to get. (e.g. <a href="http://host.org">http://host.org</a>") </td></tr>
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Definition at line <a class="el" href="_web_client_engine_8cpp-source.html#l00240">240</a> of file <a class="el" href="_web_client_engine_8cpp-source.html">WebClientEngine.cpp</a>.
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References <a class="el" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">MWebClientObserver::ClientEvent()</a>, <a class="el" href="_web_client_engine_8h-source.html#l00231">iObserver</a>, <a class="el" href="_web_client_engine_8h-source.html#l00233">iRunning</a>, <a class="el" href="_web_client_engine_8h-source.html#l00229">iSession</a>, <a class="el" href="_web_client_engine_8h-source.html#l00230">iTransaction</a>, and <a class="el" href="_web_client_engine_8cpp-source.html#l00115">SetHeaderL()</a>.<div class="fragment"><pre class="fragment"><a name="l00241"></a>00241     {
<a name="l00242"></a>00242     <span class="comment">// Parse string to URI (as defined in RFC2396)</span>
<a name="l00243"></a>00243     TUriParser8 uri;
<a name="l00244"></a>00244     uri.Parse( aUri );
<a name="l00245"></a>00245 
<a name="l00246"></a>00246     <span class="comment">// Get request method string for HTTP GET</span>
<a name="l00247"></a>00247     RStringF method = <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.StringPool().StringF( HTTP::EGET,
<a name="l00248"></a>00248         RHTTPSession::GetTable());
<a name="l00249"></a>00249 
<a name="l00250"></a>00250     <span class="comment">// Open transaction with previous method and parsed uri. This class will</span>
<a name="l00251"></a>00251     <span class="comment">// receive transaction events in MHFRunL and MHFRunError.</span>
<a name="l00252"></a>00252     <a class="code" href="class_c_web_client_engine.html#7deee05e1ccb79197ceb34881cf60159">iTransaction</a> = <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.OpenTransactionL( uri, *<span class="keyword">this</span>, method );
<a name="l00253"></a>00253 
<a name="l00254"></a>00254     <span class="comment">// Set headers for request; user agent and accepted content type</span>
<a name="l00255"></a>00255     RHTTPHeaders hdr = <a class="code" href="class_c_web_client_engine.html#7deee05e1ccb79197ceb34881cf60159">iTransaction</a>.Request().GetHeaderCollection();
<a name="l00256"></a>00256     <a class="code" href="class_c_web_client_engine.html#c5970d86bcc6ac5be0ff1c5d5daaea7b">SetHeaderL</a>( hdr, HTTP::EUserAgent, KUserAgent );
<a name="l00257"></a>00257     <a class="code" href="class_c_web_client_engine.html#c5970d86bcc6ac5be0ff1c5d5daaea7b">SetHeaderL</a>( hdr, HTTP::EAccept, KAccept );
<a name="l00258"></a>00258 
<a name="l00259"></a>00259     <span class="comment">// Submit the transaction. After this the framework will give transaction</span>
<a name="l00260"></a>00260     <span class="comment">// events via MHFRunL and MHFRunError.</span>
<a name="l00261"></a>00261     <a class="code" href="class_c_web_client_engine.html#7deee05e1ccb79197ceb34881cf60159">iTransaction</a>.SubmitL();
<a name="l00262"></a>00262 
<a name="l00263"></a>00263     <a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> = ETrue;
<a name="l00264"></a>00264 
<a name="l00265"></a>00265     <span class="comment">// Load a string from the resource file </span>
<a name="l00266"></a>00266     HBufC* textResource = StringLoader::LoadLC( R_WEBCLIENT_CONNECTING );
<a name="l00267"></a>00267     <a class="code" href="class_c_web_client_engine.html#5598d19cc10719afd28055422087a200">iObserver</a>.<a class="code" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">ClientEvent</a>( *textResource );
<a name="l00268"></a>00268     CleanupStack::PopAndDestroy( textResource );
<a name="l00269"></a>00269     }
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<a class="anchor" name="5b3730609dcbc8696c0ff37e711e965d"></a><!-- doxytag: member="CWebClientEngine::CancelTransactionL" ref="5b3730609dcbc8696c0ff37e711e965d" args="()" --><p>
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          <td class="md" nowrap valign="top">void CWebClientEngine::CancelTransactionL           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<a class="el" href="class_c_web_client_engine.html#5b3730609dcbc8696c0ff37e711e965d">CancelTransactionL()</a> Closes currently running transaction and frees resources related to it. 
<p>
Definition at line <a class="el" href="_web_client_engine_8cpp-source.html#l00277">277</a> of file <a class="el" href="_web_client_engine_8cpp-source.html">WebClientEngine.cpp</a>.
<p>
References <a class="el" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">MWebClientObserver::ClientEvent()</a>, <a class="el" href="_web_client_engine_8h-source.html#l00231">iObserver</a>, <a class="el" href="_web_client_engine_8h-source.html#l00233">iRunning</a>, and <a class="el" href="_web_client_engine_8h-source.html#l00230">iTransaction</a>.<div class="fragment"><pre class="fragment"><a name="l00278"></a>00278     {
<a name="l00279"></a>00279     <span class="keywordflow">if</span>( !<a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> ) 
<a name="l00280"></a>00280         <span class="keywordflow">return</span>;
<a name="l00281"></a>00281 
<a name="l00282"></a>00282     <span class="comment">// Close() also cancels transaction (Cancel() can also be used but </span>
<a name="l00283"></a>00283     <span class="comment">// resources allocated by transaction must be still freed with Close())</span>
<a name="l00284"></a>00284     <a class="code" href="class_c_web_client_engine.html#7deee05e1ccb79197ceb34881cf60159">iTransaction</a>.Close();
<a name="l00285"></a>00285 
<a name="l00286"></a>00286     <span class="comment">// Not running anymore</span>
<a name="l00287"></a>00287     <a class="code" href="class_c_web_client_engine.html#d19da1539625146ffaa8979ee6ced8c3">iRunning</a> = EFalse;
<a name="l00288"></a>00288 
<a name="l00289"></a>00289     <span class="comment">// Load a string from the resource file </span>
<a name="l00290"></a>00290     HBufC* textResource = StringLoader::LoadLC( R_WEBCLIENT_TRANSACTION_CANCEL );
<a name="l00291"></a>00291     <a class="code" href="class_c_web_client_engine.html#5598d19cc10719afd28055422087a200">iObserver</a>.<a class="code" href="class_m_web_client_observer.html#ba45586e3b6414e9a001aa362b83f6d3">ClientEvent</a>( *textResource );
<a name="l00292"></a>00292     CleanupStack::PopAndDestroy( textResource );
<a name="l00293"></a>00293     }
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<a class="anchor" name="3f9569fee2d8d73da06a0025fcd80c8d"></a><!-- doxytag: member="CWebClientEngine::IsRunning" ref="3f9569fee2d8d73da06a0025fcd80c8d" args="()" --><p>
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          <td class="md" nowrap valign="top">TBool CWebClientEngine::IsRunning           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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