Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_feature_checker_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Base/FeatMngrExample/FeatureChecker/src/FeatureChecker.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#include "FeatureChecker.h"</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include <e32cons.h></span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="keywordtype">void</span> CFeatureChecker::ConstructL()
<a name="l00020"></a>00020 {
<a name="l00021"></a>00021 iFeatNotifier = CFeatureNotifier::NewL(*<span class="keyword">this</span>);
<a name="l00022"></a>00022 }
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <a class="code" href="class_c_feature_checker.html">CFeatureChecker</a>* CFeatureChecker::NewL()
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026 <a class="code" href="class_c_feature_checker.html">CFeatureChecker</a>* <span class="keyword">self</span>=<span class="keyword">new</span>(ELeave)<a class="code" href="class_c_feature_checker.html">CFeatureChecker</a>();
<a name="l00027"></a>00027 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00028"></a>00028 <span class="keyword">self</span>->ConstructL();
<a name="l00029"></a>00029 CleanupStack::Pop(<span class="keyword">self</span>);
<a name="l00030"></a>00030 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032
<a name="l00036"></a><a class="code" href="class_c_feature_checker.html#a2f290dbff4a1e23854b1acd0038836ed">00036</a> <a class="code" href="class_c_feature_checker.html#a2f290dbff4a1e23854b1acd0038836ed">CFeatureChecker::~CFeatureChecker</a>()
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 <span class="keyword">delete</span> iFeatNotifier;
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00044"></a><a class="code" href="class_c_feature_checker.html#ad81e893eb0476ad7aed4b31d77fb131f">00044</a> <span class="keywordtype">void</span> <a class="code" href="class_c_feature_checker.html#ad81e893eb0476ad7aed4b31d77fb131f">CFeatureChecker::NotifyFeatureL</a>()
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 RFeatureUidArray featArray;
<a name="l00047"></a>00047 CleanupClosePushL(featArray);
<a name="l00048"></a>00048 TUid uidFeature;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">//Number of feature UIDs which are subscribed to for notification.</span>
<a name="l00051"></a>00051 <span class="keyword">const</span> TInt KNumFeaturesforNotification(10);
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="comment">//Base feature UID for which notification requests are made. This is the same UID range which </span>
<a name="l00054"></a>00054 <span class="comment">//the user can use when adding features to the FeatMngrExample process.</span>
<a name="l00055"></a>00055 TUid KFeatureUidforNotification = {0x12000000};
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="comment">//Append the UIDs to featArray.</span>
<a name="l00058"></a>00058 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> k=0; k<=KNumFeaturesforNotification; k++)
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 uidFeature.iUid = KFeatureUidforNotification.iUid + k;
<a name="l00061"></a>00061 featArray.Append(uidFeature);
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">//Request notification for user defined features.</span>
<a name="l00065"></a>00065 User::LeaveIfError(iFeatNotifier->NotifyRequest(featArray));
<a name="l00066"></a>00066 CleanupStack::PopAndDestroy(&featArray);
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00072"></a><a class="code" href="class_c_feature_checker.html#ae0338caa887d637c92972b5b91bfa76a">00072</a> <span class="keywordtype">void</span> <a class="code" href="class_c_feature_checker.html#ae0338caa887d637c92972b5b91bfa76a">CFeatureChecker::HandleNotifyError</a>(TInt <span class="comment">/*err*/</span>)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00081"></a><a class="code" href="class_c_feature_checker.html#a2d4636a82989321c291e135004d74247">00081</a> <span class="keywordtype">void</span> <a class="code" href="class_c_feature_checker.html#a2d4636a82989321c291e135004d74247">CFeatureChecker::HandleNotifyChange</a>(TFeatureChangeType aType, TFeatureEntry <span class="comment">/*aFeature*/</span>)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 <span class="keyword">const</span> TInt KFeatureChangeTypeMaxSize(45);
<a name="l00084"></a>00084 TBuf<KFeatureChangeTypeMaxSize> changetype;
<a name="l00085"></a>00085 <span class="keywordflow">switch</span>(aType)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="keywordflow">case</span> EFeatureNoChange:
<a name="l00088"></a>00088 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNoChange, <span class="stringliteral">"Feature status not changed"</span>);
<a name="l00089"></a>00089 changetype.Copy(KNoChange);
<a name="l00090"></a>00090 <span class="keywordflow">break</span>;
<a name="l00091"></a>00091 <span class="keywordflow">case</span> EFeatureStatusUpdated :
<a name="l00092"></a>00092 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatusUpdated, <span class="stringliteral">"Feature status changed to enabled or disabled"</span>);
<a name="l00093"></a>00093 changetype.Copy(KStatusUpdated);
<a name="l00094"></a>00094 <span class="keywordflow">break</span>;
<a name="l00095"></a>00095 <span class="keywordflow">case</span> EFeatureDataUpdated:
<a name="l00096"></a>00096 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDataUpdated, <span class="stringliteral">"Feature data changed"</span>);
<a name="l00097"></a>00097 changetype.Copy(KDataUpdated);
<a name="l00098"></a>00098 <span class="keywordflow">break</span>;
<a name="l00099"></a>00099 <span class="keywordflow">case</span> EFeatureStatusDataUpdated:
<a name="l00100"></a>00100 <span class="comment">//not used in the current version.</span>
<a name="l00101"></a>00101 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatusDataUpdated, <span class="stringliteral">"Feature status and data changed"</span>);
<a name="l00102"></a>00102 changetype.Copy(KStatusDataUpdated);
<a name="l00103"></a>00103 <span class="keywordflow">break</span>;
<a name="l00104"></a>00104 <span class="keywordflow">case</span> EFeatureRediscover:
<a name="l00105"></a>00105 <span class="comment">//not used in the current version.</span>
<a name="l00106"></a>00106 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFeatureRediscover, <span class="stringliteral">"Complex change occurred, reload all features"</span>);
<a name="l00107"></a>00107 changetype.Copy(KFeatureRediscover);
<a name="l00108"></a>00108 <span class="keywordflow">break</span>;
<a name="l00109"></a>00109 <span class="keywordflow">case</span> EFeatureFeatureCreated:
<a name="l00110"></a>00110 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFeatureCreated, <span class="stringliteral">"New feature has been added to the system"</span>);
<a name="l00111"></a>00111 changetype.Copy(KFeatureCreated);
<a name="l00112"></a>00112 <span class="keywordflow">break</span>;
<a name="l00113"></a>00113 <span class="keywordflow">case</span> EFeatureFeatureDeleted:
<a name="l00114"></a>00114 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFeatureDeleted, <span class="stringliteral">"Feature has been deleted"</span>);
<a name="l00115"></a>00115 changetype.Copy(KFeatureDeleted);
<a name="l00116"></a>00116 <span class="keywordflow">break</span>;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 <span class="comment">//Print the change type as an infoprint.</span>
<a name="l00119"></a>00119 User::InfoPrint(changetype);
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00126"></a>00126 <span class="keyword">static</span> <span class="keywordtype">void</span> MainL()
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 CActiveScheduler* scheduler = <span class="keyword">new</span> (ELeave) CActiveScheduler();
<a name="l00129"></a>00129 CleanupStack::PushL(scheduler);
<a name="l00130"></a>00130 CActiveScheduler::Install(scheduler);
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <a class="code" href="class_c_feature_checker.html">CFeatureChecker</a>* featChecker = CFeatureChecker::NewL();
<a name="l00133"></a>00133 CleanupStack::PushL(featChecker);
<a name="l00134"></a>00134 <span class="comment">//Issue feature change notification request.</span>
<a name="l00135"></a>00135 featChecker-><a class="code" href="class_c_feature_checker.html#ad81e893eb0476ad7aed4b31d77fb131f">NotifyFeatureL</a>();
<a name="l00136"></a>00136 CActiveScheduler::Start();
<a name="l00137"></a>00137
<a name="l00138"></a>00138 CleanupStack::PopAndDestroy(featChecker);
<a name="l00139"></a>00139 CleanupStack::PopAndDestroy(scheduler);
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keyword">extern</span> TInt E32Main()
<a name="l00143"></a>00143 {
<a name="l00144"></a>00144 <span class="comment">// Create cleanup stack</span>
<a name="l00145"></a>00145 __UHEAP_MARK;
<a name="l00146"></a>00146 CTrapCleanup* cleanup = CTrapCleanup::New();
<a name="l00147"></a>00147 <span class="keywordflow">if</span>(cleanup == NULL)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 <span class="keywordflow">return</span> KErrNoMemory;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151 <span class="comment">// Run application code inside TRAP harness.</span>
<a name="l00152"></a>00152 TRAPD(mainError, MainL());
<a name="l00153"></a>00153 <span class="keywordflow">if</span>(mainError != KErrNone)
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KUserPanic,<span class="stringliteral">"Failed to complete"</span>);
<a name="l00156"></a>00156 User::Panic(KUserPanic, mainError);
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 <span class="keyword">delete</span> cleanup;
<a name="l00159"></a>00159 __UHEAP_MARKEND;
<a name="l00160"></a>00160 <span class="keywordflow">return</span> KErrNone;
<a name="l00161"></a>00161 }
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