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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>WebClientEngine.cpp Source File</title><link href="style.css" rel="stylesheet" type="text/css"></head><table border="0" width="100%" height="8" bgcolor="#eeeeee"> <tr> <td width="100%" height="1"><b><font size="2" color="#000000" face="Arial, Helvetica, sans-serif"><strong><a name=Top></a> S60 3rd Edition SDK for Symbian OS </strong></font></b><br><i>Example Applications Guide</i></td></tr> </table><!-- Generated by Doxygen 1.4.5 --><h1>WebClientEngine.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment">* ==============================================================================</span><a name="l00003"></a>00003 <span class="comment">* Name : WebClientEngine.cpp</span><a name="l00004"></a>00004 <span class="comment">* Part of : WebClient</span><a name="l00005"></a>00005 <span class="comment">* Interface : </span><a name="l00006"></a>00006 <span class="comment">* Description : </span><a name="l00007"></a>00007 <span class="comment">* Version : </span><a name="l00008"></a>00008 <span class="comment">*</span><a name="l00009"></a>00009 <span class="comment">* Copyright (c) 2005-2006 Nokia Corporation.</span><a name="l00010"></a>00010 <span class="comment">* This material, including documentation and any related </span><a name="l00011"></a>00011 <span class="comment">* computer programs, is protected by copyright controlled by </span><a name="l00012"></a>00012 <span class="comment">* Nokia Corporation.</span><a name="l00013"></a>00013 <span class="comment">* ==============================================================================</span><a name="l00014"></a>00014 <span class="comment">*/</span><a name="l00015"></a>00015 <a name="l00016"></a>00016 <span class="comment">// INCLUDE FILES</span><a name="l00017"></a>00017 <span class="preprocessor">#include <avkon.hrh></span><a name="l00018"></a>00018 <span class="preprocessor">#include <aknnotewrappers.h></span><a name="l00019"></a>00019 <span class="preprocessor">#include <stringloader.h></span><a name="l00020"></a>00020 <span class="preprocessor">#include <http.h></span><a name="l00021"></a>00021 <span class="preprocessor">#include <WebClient.rsg></span><a name="l00022"></a>00022 <span class="preprocessor">#include "WebClient.pan"</span><a name="l00023"></a>00023 <span class="preprocessor">#include "WebClient.hrh"</span><a name="l00024"></a>00024 <span class="preprocessor">#include "WebClientEngine.h"</span><a name="l00025"></a>00025 <span class="preprocessor">#include "WebClientAppUi.h"</span><a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00028"></a>00028 <span class="comment">// CWebClientEngine::NewL()</span><a name="l00029"></a>00029 <span class="comment">// Creates instance of CWebClientEngine.</span><a name="l00030"></a>00030 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00031"></a>00031 <span class="comment">//</span><a name="l00032"></a><a class="code" href="class_c_web_client_engine.html#b264d72c4ee8a9aec87d89eda84d2ef7">00032</a> <a class="code" href="class_c_web_client_engine.html">CWebClientEngine</a>* <a class="code" href="class_c_web_client_engine.html#b264d72c4ee8a9aec87d89eda84d2ef7">CWebClientEngine::NewL</a>( <a class="code" href="class_m_web_client_observer.html">MWebClientObserver</a>& aObserver )<a name="l00033"></a>00033 {<a name="l00034"></a>00034 <a class="code" href="class_c_web_client_engine.html">CWebClientEngine</a>* <span class="keyword">self</span> = <a class="code" href="class_c_web_client_engine.html#57e22c490455b0b11d8c35b54c4abb61">CWebClientEngine::NewLC</a>( aObserver );<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 }<a name="l00038"></a>00038 <a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00041"></a>00041 <span class="comment">// CWebClientEngine::NewLC()</span><a name="l00042"></a>00042 <span class="comment">// Creates instance of CWebClientEngine.</span><a name="l00043"></a>00043 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00044"></a>00044 <span class="comment">//</span><a name="l00045"></a><a class="code" href="class_c_web_client_engine.html#57e22c490455b0b11d8c35b54c4abb61">00045</a> <a class="code" href="class_c_web_client_engine.html">CWebClientEngine</a>* <a class="code" href="class_c_web_client_engine.html#57e22c490455b0b11d8c35b54c4abb61">CWebClientEngine::NewLC</a>( <a class="code" href="class_m_web_client_observer.html">MWebClientObserver</a>& aObserver )<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>->ConstructL();<a name="l00050"></a>00050 <span class="keywordflow">return</span> <span class="keyword">self</span>;<a name="l00051"></a>00051 }<a name="l00052"></a>00052 <a name="l00053"></a>00053 <a name="l00054"></a>00054 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00055"></a>00055 <span class="comment">// CWebClientEngine::CWebClientEngine()</span><a name="l00056"></a>00056 <span class="comment">// First phase constructor.</span><a name="l00057"></a>00057 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00058"></a>00058 <span class="comment">//</span><a name="l00059"></a><a class="code" href="class_c_web_client_engine.html#32fe2a86e82c042cd514e8f576077b8c">00059</a> <a class="code" href="class_c_web_client_engine.html#32fe2a86e82c042cd514e8f576077b8c">CWebClientEngine::CWebClientEngine</a>( <a class="code" href="class_m_web_client_observer.html">MWebClientObserver</a>& aObserver )<a name="l00060"></a>00060 : iObserver( aObserver ),<a name="l00061"></a>00061 iRunning( EFalse ),<a name="l00062"></a>00062 iApplicationUi( NULL )<a name="l00063"></a>00063 {<a name="l00064"></a>00064 <span class="comment">// no implementation required</span><a name="l00065"></a>00065 }<a name="l00066"></a>00066 <a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00069"></a>00069 <span class="comment">// CWebClientEngine::~CWebClientEngine()</span><a name="l00070"></a>00070 <span class="comment">// Destructor.</span><a name="l00071"></a>00071 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00072"></a>00072 <span class="comment">//</span><a name="l00073"></a><a class="code" href="class_c_web_client_engine.html#6b11939584e352b78a736b2f411623c2">00073</a> <a class="code" href="class_c_web_client_engine.html#6b11939584e352b78a736b2f411623c2">CWebClientEngine::~CWebClientEngine</a>()<a name="l00074"></a>00074 {<a name="l00075"></a>00075 <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.Close();<a name="l00076"></a>00076 <a class="code" href="class_c_web_client_engine.html#6da7cfd219226594e04b0bf1b29cd50d">iApplicationUi</a> = NULL;<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00079"></a>00079 <a name="l00080"></a>00080 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00081"></a>00081 <span class="comment">// CWebClientEngine::ConstructL()</span><a name="l00082"></a>00082 <span class="comment">// Second phase construction.</span><a name="l00083"></a>00083 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00084"></a>00084 <span class="comment">//</span><a name="l00085"></a><a class="code" href="class_c_web_client_engine.html#9ce34ba0b947863222da3c63d0481044">00085</a> <span class="keywordtype">void</span> <a class="code" href="class_c_web_client_engine.html#9ce34ba0b947863222da3c63d0481044">CWebClientEngine::ConstructL</a>()<a name="l00086"></a>00086 {<a name="l00087"></a>00087 <span class="comment">// Open RHTTPSession with default protocol ("HTTP/TCP")</span><a name="l00088"></a>00088 TRAPD( err, <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.OpenL() );<a name="l00089"></a>00089 <span class="keywordflow">if</span>( err != KErrNone ) {<a name="l00090"></a>00090 <span class="comment">// Most common error; no access point configured, and session creation</span><a name="l00091"></a>00091 <span class="comment">// leaves with KErrNotFound.</span><a name="l00092"></a>00092 <span class="comment">// Load a string from the resource file and add the error code to string</span><a name="l00093"></a>00093 HBufC* textResource = StringLoader::LoadLC( R_WEBCLIENT_IAP_CONF_ERR, err );<a name="l00094"></a>00094 CAknErrorNote* errorNote;<a name="l00095"></a>00095 errorNote = <span class="keyword">new</span> (ELeave) CAknErrorNote;<a name="l00096"></a>00096 <span class="comment">// Show the error Note with textResource loaded with StringLoader.</span><a name="l00097"></a>00097 errorNote->ExecuteLD( *textResource);<a name="l00098"></a>00098 <span class="comment">// Pop HBuf from CleanUpStack and Destroy it.</span><a name="l00099"></a>00099 CleanupStack::PopAndDestroy( textResource );<a name="l00100"></a>00100 User::Leave( err );<a name="l00101"></a>00101 }<a name="l00102"></a>00102 <a name="l00103"></a>00103 <span class="comment">// Install this class as the callback for authentication requests. When </span><a name="l00104"></a>00104 <span class="comment">// page requires authentication the framework calls GetCredentialsL to get </span><a name="l00105"></a>00105 <span class="comment">// user name and password.</span><a name="l00106"></a>00106 InstallAuthenticationL( <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a> );<a name="l00107"></a>00107 }<a name="l00108"></a>00108 <a name="l00109"></a>00109 <a name="l00110"></a>00110 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00111"></a>00111 <span class="comment">// CWebClientEngine::SetHeaderL()</span><a name="l00112"></a>00112 <span class="comment">// Used to set header value to HTTP request</span><a name="l00113"></a>00113 <span class="comment">// ----------------------------------------------------------------------------</span><a name="l00114"></a>00114 <span class="comment">//</span><a name="l00115"></a><a class="code" href="class_c_web_client_engine.html#c5970d86bcc6ac5be0ff1c5d5daaea7b">00115</a> <span class="keywordtype">void</span> <a class="code" href="class_c_web_client_engine.html#c5970d86bcc6ac5be0ff1c5d5daaea7b">CWebClientEngine::SetHeaderL</a>( RHTTPHeaders aHeaders, <a name="l00116"></a>00116 TInt aHdrField, <a name="l00117"></a>00117 <span class="keyword">const</span> TDesC8& aHdrValue )<a name="l00118"></a>00118 {<a name="l00119"></a>00119 RStringF valStr = <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.StringPool().OpenFStringL( aHdrValue );<a name="l00120"></a>00120 CleanupClosePushL( valStr );<a name="l00121"></a>00121 THTTPHdrVal val( valStr );<a name="l00122"></a>00122 aHeaders.SetFieldL( <a class="code" href="class_c_web_client_engine.html#d8033daa9b951c54149345b6871648bb">iSession</a>.StringPool().StringF( aHdrField,<a name="l00123"></a>00123 RHTTPSession::GetTable() ), val );⌨️ 快捷键说明
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