diff -r 5b6f26637ad3 -r f4a778e096c2 logsui/LogsExt/MLogsUiExtensionBase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/logsui/LogsExt/MLogsUiExtensionBase.h	Wed Sep 01 12:29:52 2010 +0100
@@ -0,0 +1,88 @@
+/*
+* 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: 
+*    Abstract interface for creating logs extensions.
+*
+*
+*/
+
+
+#ifndef __MLogsUiExtensionBase_H
+#define __MLogsUiExtensionBase_H
+
+
+// INCLUDES
+#include <e32base.h>
+
+
+// CLASS DECLARATION
+
+/**
+ * @internal This interface is internal to Logs.
+ *
+ * Base interface for Logs UI extensions.
+ */
+class MLogsUiExtensionBase
+    {
+    public:
+        /**
+         * Pushes this object on the cleanup stack.
+         */
+        void PushL();
+
+    protected:
+        /**
+         * Destructor.
+         */
+        virtual ~MLogsUiExtensionBase() =0;
+
+    private:
+        friend void Release(MLogsUiExtensionBase*);
+        static void CleanupRelease(TAny* aObj);
+
+        /**
+         * Implement to release this object and any resources it owns.
+         */
+        virtual void DoRelease() =0;
+    };
+
+inline void MLogsUiExtensionBase::PushL()
+    { 
+    CleanupStack::PushL(TCleanupItem(CleanupRelease,this)); 
+    }
+
+inline MLogsUiExtensionBase::~MLogsUiExtensionBase() 
+    {
+    }
+
+/**
+ * Releases aObj.
+ */
+inline void Release(MLogsUiExtensionBase* aObj)
+    {
+    if (aObj)
+        {
+        aObj->DoRelease();
+        }
+    }
+
+inline void MLogsUiExtensionBase::CleanupRelease(TAny* aObj)
+    { 
+    Release(static_cast<MLogsUiExtensionBase*>(aObj)); 
+    }
+
+#endif
+
+
+// End of File