1 /*

     2 * Copyright (c) 2007-2009 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:  Interface definition for esmricalviewer callback

    15 *

    16 */

    17 

    18 

    19 #ifndef MESMRICALVIEWERCALLBACK_H

    20 #define MESMRICALVIEWERCALLBACK_H

    21 

    22 // INCLUDES

    23 //<cmail>

    24 #include "esmricalvieweropcodes.hrh"   // tesmricalvieweroperationtype

    25 //</cmail>

    26 

    27 // FORWARD DECLARATIONS

    28 class CFSMailMessage;

    29 class MESMRIcalViewerObserver;

    30 

    31 // CLASS DECLARATIONS

    32 /**

    33  * MESMRIcalViewerCallback implements callback interface

    34  * for esmricalviewer.

    35  */

    36 class MESMRIcalViewerCallback

    37     {

    38     public:

    39         /**

    40          * Virtual destructor

    41          */

    42         virtual ~MESMRIcalViewerCallback() { }

    43 

    44     public: // Interface

    45         /**

    46          * Processes given command asynchronously.

    47          * @param aCommandId Command to be processed.

    48          * @param aMessage Reference to mail message.

    49          * @param aObserver Observer for asynchronous operations

    50          * @exception KErrNotSupported if the command is not supported

    51          */

    52         virtual void ProcessAsyncCommandL(

    53                 TESMRIcalViewerOperationType aCommandId,

    54                 const CFSMailMessage& aMessage,

    55                 MESMRIcalViewerObserver* aObserver = NULL ) = 0;

    56 

    57         /**

    58          * Processes given command synchronously.

    59          * @param aCommandId Command to be processed.

    60          * @param aMessage Reference to mail message.

    61          * @exception KErrNotSupported if the command is not supported

    62          */

    63         virtual void ProcessSyncCommandL(

    64                 TESMRIcalViewerOperationType aCommandId,

    65                 const CFSMailMessage& aMessage ) = 0;

    66 

    67         /**

    68          * Tests if callback can process command.

    69          * @param aCommandId Command to be processed.

    70          * @return ETrue if callback can process command.

    71          */

    72         virtual TBool CanProcessCommand(

    73                 TESMRIcalViewerOperationType aCommandId ) const = 0;

    74 

    75         /**

    76         * Returns an extension point for this interface or NULL.

    77         * @param aExtensionUid Uid of extension.

    78         * @return Extension point or NULL.

    79         */

    80         virtual TAny* MRIcalViewerCallbackExtension(

    81               TUid /*aExtensionUid*/) { return NULL; }

    82     };

    83 

    84 #endif // MESMRICALVIEWERCALLBACK_H

    85 

    86 // EOF