1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *    Abstract interface for creating logs extensions.

    16 *

    17 *

    18 */

    19 

    20 

    21 #ifndef __MLogsUiExtensionBase_H

    22 #define __MLogsUiExtensionBase_H

    23 

    24 

    25 // INCLUDES

    26 #include <e32base.h>

    27 

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32  * @internal This interface is internal to Logs.

    33  *

    34  * Base interface for Logs UI extensions.

    35  */

    36 class MLogsUiExtensionBase

    37     {

    38     public:

    39         /**

    40          * Pushes this object on the cleanup stack.

    41          */

    42         void PushL();

    43 

    44     protected:

    45         /**

    46          * Destructor.

    47          */

    48         virtual ~MLogsUiExtensionBase() =0;

    49 

    50     private:

    51         friend void Release(MLogsUiExtensionBase*);

    52         static void CleanupRelease(TAny* aObj);

    53 

    54         /**

    55          * Implement to release this object and any resources it owns.

    56          */

    57         virtual void DoRelease() =0;

    58     };

    59 

    60 inline void MLogsUiExtensionBase::PushL()

    61     { 

    62     CleanupStack::PushL(TCleanupItem(CleanupRelease,this)); 

    63     }

    64 

    65 inline MLogsUiExtensionBase::~MLogsUiExtensionBase() 

    66     {

    67     }

    68 

    69 /**

    70  * Releases aObj.

    71  */

    72 inline void Release(MLogsUiExtensionBase* aObj)

    73     {

    74     if (aObj)

    75         {

    76         aObj->DoRelease();

    77         }

    78     }

    79 

    80 inline void MLogsUiExtensionBase::CleanupRelease(TAny* aObj)

    81     { 

    82     Release(static_cast<MLogsUiExtensionBase*>(aObj)); 

    83     }

    84 

    85 #endif

    86 

    87 

    88 // End of File