Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_client_app_u_i_8cpp_source.html
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<h1>examples/ForumNokia/HTTPClientExample/src/ClientAppUI.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"> * Copyright (c) 2009 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#include <avkon.hrh></span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <hlplch.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <eikmenup.h></span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#include <HTTPClientExample.rsg></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include "Client.pan"</span>
<a name="l00011"></a>00011 <span class="preprocessor">#include "ClientAppUi.h"</span>
<a name="l00012"></a>00012 <span class="preprocessor">#include "ClientAppView.h"</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "ClientApplication.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "Client.hrh"</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include "HTTPClientExample_sc.hlp.hrh"</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="comment">// Schemes for given uris</span>
<a name="l00018"></a>00018 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KHttpPrefix, <span class="stringliteral">"http://"</span>);
<a name="l00019"></a>00019 _LIT8(KHttpPrefix8, <span class="stringliteral">"http://"</span>);
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// HTTPS schemes</span>
<a name="l00022"></a>00022 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KHttpsPrefix, <span class="stringliteral">"https://"</span>);
<a name="l00023"></a>00023 _LIT8(KHttpsPrefix8, <span class="stringliteral">"https://"</span>);
<a name="l00024"></a>00024
<a name="l00025"></a>00025 _LIT8(KMimeType, <span class="stringliteral">"text/plain"</span>);
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00028"></a>00028 <span class="comment">// CClientAppUi::ConstructL()</span>
<a name="l00029"></a>00029 <span class="comment">//</span>
<a name="l00030"></a>00030 <span class="comment">// Second phase construction.</span>
<a name="l00031"></a>00031 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00032"></a>00032 <span class="keywordtype">void</span> CClientAppUi::ConstructL()
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 BaseConstructL(EAknEnableSkin);
<a name="l00035"></a>00035
<a name="l00036"></a>00036 iAppView = CClientAppView::NewL(ClientRect());
<a name="l00037"></a>00037 AddToStackL(iAppView);
<a name="l00038"></a>00038
<a name="l00039"></a>00039 iEngine = CClientEngine::NewL(*iAppView);
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00043"></a>00043 <span class="comment">// CClientAppUi::CClientAppUi()</span>
<a name="l00044"></a>00044 <span class="comment">//</span>
<a name="l00045"></a>00045 <span class="comment">// First phase construction.</span>
<a name="l00046"></a>00046 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00047"></a>00047 CClientAppUi::CClientAppUi()
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00052"></a>00052 <span class="comment">// CClientAppUi::~CClientAppUi()</span>
<a name="l00053"></a>00053 <span class="comment">//</span>
<a name="l00054"></a>00054 <span class="comment">// Destructor.</span>
<a name="l00055"></a>00055 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00056"></a>00056 CClientAppUi::~CClientAppUi()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <span class="keyword">delete</span> iEngine;
<a name="l00059"></a>00059 <span class="keywordflow">if</span> (iAppView)
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 iEikonEnv->RemoveFromStack(iAppView);
<a name="l00062"></a>00062 <span class="keyword">delete</span> iAppView;
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00067"></a>00067 <span class="comment">// CClientAppUi::HandleCommandL()</span>
<a name="l00068"></a>00068 <span class="comment">//</span>
<a name="l00069"></a>00069 <span class="comment">// Handles user commands.</span>
<a name="l00070"></a>00070 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00071"></a>00071 <span class="keywordtype">void</span> CClientAppUi::HandleCommandL(TInt aCommand)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="keywordflow">switch</span>(aCommand)
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="keywordflow">case</span> EEikCmdExit:
<a name="l00076"></a>00076 <span class="keywordflow">case</span> EAknSoftkeyExit:
<a name="l00077"></a>00077 Exit();
<a name="l00078"></a>00078 <span class="keywordflow">break</span>;
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordflow">case</span> EClientGet:
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 <span class="comment">// Issue HTTP get to engine; first cancel possible existing transaction</span>
<a name="l00083"></a>00083 iEngine->CancelTransaction();
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="comment">// Query uri</span>
<a name="l00086"></a>00086 TBuf<KDefaultBufferSize> uri;
<a name="l00087"></a>00087 CAknTextQueryDialog* dlg = <span class="keyword">new</span> (ELeave) CAknTextQueryDialog(uri,
<a name="l00088"></a>00088 CAknQueryDialog::ENoTone);
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordflow">if</span> (! dlg->ExecuteLD(R_DIALOG_URI_QUERY))
<a name="l00091"></a>00091 <span class="keywordflow">break</span>;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 iAppView->ResetL();
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="comment">// Insert prefix to uri (it must begin with "http://" or "https://")</span>
<a name="l00096"></a>00096 TBuf8<KDefaultBufferSize> uri8;
<a name="l00097"></a>00097 uri.LowerCase();
<a name="l00098"></a>00098 <span class="keywordflow">if</span>(uri.Find(KHttpPrefix) == KErrNotFound
<a name="l00099"></a>00099 && uri.Find(KHttpsPrefix) == KErrNotFound)
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 <span class="comment">// If the uri does not contain http or https,</span>
<a name="l00102"></a>00102 <span class="comment">// use the default, "http://"</span>
<a name="l00103"></a>00103 uri8.Append(KHttpPrefix8);
<a name="l00104"></a>00104 uri8.Append(uri);
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">else</span>
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 uri8.Copy(uri);
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="comment">// Start transaction</span>
<a name="l00112"></a>00112 <span class="comment">// TODO:</span>
<a name="l00113"></a>00113 TRAPD(err, iEngine->IssueHTTPGetL(uri8));
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 <span class="keywordflow">break</span>;
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordflow">case</span> EClientPost:
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="comment">// Issue HTTP post to engine; first cancel possible existing transaction</span>
<a name="l00120"></a>00120 iEngine->CancelTransaction();
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="comment">// Query uri and data to post</span>
<a name="l00123"></a>00123 TBuf<KDefaultBufferSize> uri;
<a name="l00124"></a>00124 TBuf<KDefaultBufferSize> postData;
<a name="l00125"></a>00125 CAknMultiLineDataQueryDialog* dlg =
<a name="l00126"></a>00126 CAknMultiLineDataQueryDialog::NewL(uri, postData);
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keywordflow">if</span> (!dlg->ExecuteLD(R_DIALOG_URI_POST_QUERY))
<a name="l00129"></a>00129 <span class="keywordflow">break</span>;
<a name="l00130"></a>00130
<a name="l00131"></a>00131 iAppView->ResetL();
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="comment">// Insert prefix to uri (it must begin with "http://" or "https://")</span>
<a name="l00134"></a>00134 TBuf8<KDefaultBufferSize> uri8;
<a name="l00135"></a>00135 uri.LowerCase();
<a name="l00136"></a>00136 <span class="keywordflow">if</span>(uri.Find(KHttpPrefix) == KErrNotFound
<a name="l00137"></a>00137 && uri.Find(KHttpsPrefix) == KErrNotFound)
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 <span class="comment">// If uri does not contain http or https,</span>
<a name="l00140"></a>00140 <span class="comment">// use the default, "http://"</span>
<a name="l00141"></a>00141 uri8.Append(KHttpPrefix8);
<a name="l00142"></a>00142 uri8.Append(uri);
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keywordflow">else</span>
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 uri8.Copy(uri);
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148
<a name="l00149"></a>00149 TBuf8<KDefaultBufferSize> postData8;
<a name="l00150"></a>00150 postData8.Copy(postData);
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="comment">// Start transaction</span>
<a name="l00153"></a>00153 TRAPD(err, iEngine->IssueHTTPPostL(uri8, KMimeType, postData8));
<a name="l00154"></a>00154 <span class="comment">// TODO: Error handling</span>
<a name="l00155"></a>00155 <span class="keywordflow">if</span> (err)
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159 <span class="keywordflow">break</span>;
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordflow">case</span> EClientCancel:
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 <span class="comment">// Cancel current transaction</span>
<a name="l00164"></a>00164 iEngine->CancelTransaction();
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166 <span class="keywordflow">break</span>;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 <span class="comment">// Switch focus to the other rich text editor</span>
<a name="l00169"></a>00169 <span class="keywordflow">case</span> EClientSwitchFocus:
<a name="l00170"></a>00170 {
<a name="l00171"></a>00171 iAppView->SwitchFocus();
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173 <span class="keywordflow">break</span>;
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="keywordflow">case</span> EClientHelp:
<a name="l00176"></a>00176 {
<a name="l00177"></a>00177 CArrayFix <TCoeHelpContext>* buf = CCoeAppUi::AppHelpContextL();
<a name="l00178"></a>00178 HlpLauncher::LaunchHelpApplicationL( iEikonEnv->WsSession(), buf );
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 <span class="keywordflow">break</span>;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">case</span> EClientAbout:
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 HBufC* title = iEikonEnv->AllocReadResourceLC(R_ABOUT_DIALOG_TITLE);
<a name="l00185"></a>00185 HBufC* msg = iEikonEnv->AllocReadResourceLC(R_ABOUT_DIALOG_TEXT);
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="comment">// Note: CodeScanner gives a false positive of "Neglected to put</span>
<a name="l00188"></a>00188 <span class="comment">// variable on cleanup stack (Id: 35)" on dlg.</span>
<a name="l00189"></a>00189 CAknMessageQueryDialog* dlg = CAknMessageQueryDialog::NewL(*msg); <span class="comment">// CSI: 35 #</span>
<a name="l00190"></a>00190 dlg->PrepareLC(R_DIALOG_ABOUT);
<a name="l00191"></a>00191 dlg->SetHeaderTextL(*title);
<a name="l00192"></a>00192 dlg->RunLD();
<a name="l00193"></a>00193
<a name="l00194"></a>00194 CleanupStack::PopAndDestroy(msg);
<a name="l00195"></a>00195 CleanupStack::PopAndDestroy(title);
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197 <span class="keywordflow">break</span>;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">default</span>:
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 Panic(EClientUi);
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203 <span class="keywordflow">break</span>;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00208"></a>00208 <span class="comment">// CClientAppUi::HelpContextL()</span>
<a name="l00209"></a>00209 <span class="comment">//</span>
<a name="l00210"></a>00210 <span class="comment">// Return the help context for this application.</span>
<a name="l00211"></a>00211 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00212"></a>00212 CArrayFix <TCoeHelpContext>* CClientAppUi::HelpContextL()<span class="keyword"> const</span>
<a name="l00213"></a>00213 <span class="keyword"> </span>{
<a name="l00214"></a>00214 CArrayFixFlat <TCoeHelpContext>* array = <span class="keyword">new</span> (ELeave)CArrayFixFlat <TCoeHelpContext>(1);
<a name="l00215"></a>00215 CleanupStack::PushL(array);
<a name="l00216"></a>00216 array->AppendL(TCoeHelpContext(KUidHelpFile, KContextApplication));
<a name="l00217"></a>00217 CleanupStack::Pop(array);
<a name="l00218"></a>00218 <span class="keywordflow">return</span> array;
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00222"></a>00222 <span class="comment">// CClientAppUi::DynInitMenuPaneL()</span>
<a name="l00223"></a>00223 <span class="comment">//</span>
<a name="l00224"></a>00224 <span class="comment">// Initializes the menu pane when it's activated.</span>
<a name="l00225"></a>00225 <span class="comment">// ----------------------------------------------------------------------------</span>
<a name="l00226"></a>00226 <span class="keywordtype">void</span> CClientAppUi::DynInitMenuPaneL(TInt aMenuId, CEikMenuPane* aMenuPane)
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 <span class="comment">// "Cancel" selection is only available when trasaction running in engine</span>
<a name="l00229"></a>00229 <span class="keywordflow">if</span> (aMenuId == R_EXAMPLECLIENT_MENU)
<a name="l00230"></a>00230 aMenuPane->SetItemDimmed(EClientCancel, !iEngine->IsRunning());
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="comment">// end of file</span>
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