--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/logsui/AppSrc/CLogsExtensionLoader.cpp	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,120 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*       Implementation for extension dll loader.
+*
+*/
+
+
+// INCLUDE FILES
+#include "CLogsExtensionLoader.h"
+#include "TLogsDummyExtensionFactory.h"
+#include "ExtensionUID.h"
+#include <data_caging_path_literals.hrh>  //KDC_APP_BITMAP_DIR and KDC_SHARED_LIB_DIR
+#include <featmgr.h>
+
+// MODULE DATA STRUCTURES
+typedef MLogsExtensionFactory* (*TExtensionEntryPoint)();
+
+
+// ================= MEMBER FUNCTIONS =======================
+inline CLogsExtensionLoader::CLogsExtensionLoader()
+    {
+    }
+
+inline void CLogsExtensionLoader::ConstructL()
+    {
+    //Tries to load the extension dll and initialise iFactory to point to the loaded dll
+    TRAPD(err, LoadExtensionDllL());
+    
+    //If dll is not part of rom image then initialise iFactory to point to dummy implementation instead
+    if (err)
+        {    
+        if ( iFactory )
+            {
+            iFactory->Release();
+            iFactory = NULL;
+            }
+        iFactory = TLogsDummyExtensionFactory::NewL();
+        }
+    }
+
+CLogsExtensionLoader* CLogsExtensionLoader::NewL()
+    {
+    CLogsExtensionLoader* self = new (ELeave) CLogsExtensionLoader;
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+CLogsExtensionLoader::~CLogsExtensionLoader()
+    {      
+    if ( iFactory )
+        {
+        iFactory->Release();
+        iFactory = NULL;
+        }
+    iDll.Close(); // This has to be last 
+    }
+
+//Returns refrence to loaded dll's factory functionality or default implementation
+MLogsExtensionFactory& CLogsExtensionLoader::ExtensionFactory()
+    {    
+    return *iFactory;
+    }
+
+TUidType CLogsExtensionLoader::UidType()
+    {
+    return TUidType(KNullUid, TUid::Uid(KExtensionDllUID2), KNullUid);
+    }
+
+void CLogsExtensionLoader::LoadExtensionDllL()
+    {
+    // If voip is not supported then don't try to load the
+    // extension dll, leave will cause the dummy extension to be
+    // used instead
+    if ( !FeatureManager::FeatureSupported(KFeatureIdCommonVoip))
+        {
+        User::Leave(KErrNotFound);
+        }        
+    else
+        {
+        // Set up path+filename for extension dll
+        TFileName dllFileWithPath;
+
+        dllFileWithPath += KDC_SHARED_LIB_DIR;
+        dllFileWithPath += KLogsUiExtensionDllFile;  
+
+        User::LeaveIfError(iDll.Load(dllFileWithPath, UidType()));  
+    
+        // Get the 1st entry point from the DLL
+        TExtensionEntryPoint createExtensionFactoryL =
+            reinterpret_cast<TExtensionEntryPoint>(iDll.Lookup(1));
+        
+        if (!createExtensionFactoryL)
+            {
+            User::Leave(KErrNotFound);
+            }
+
+         // Call the entry point to create the test suite
+        iFactory = createExtensionFactoryL();
+        if (!iFactory)
+            {
+            User::Leave(KErrNotFound);
+            }
+        }
+    }
+
+// End of File