1 /*

     2 * Copyright (c) 2005 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 *             This class watches for changes to the ECOM registry

    16 *             and forces a recheck of Meeting request availablity

    17 *       

    18 *

    19 */

    20 

    21 

    22 #ifndef __CALENECOMWATCHER_H__

    23 #define __CALENECOMWATCHER_H__

    24 

    25 //  INCLUDES

    26 #include <e32base.h>

    27 #include <ecom/ecom.h>

    28 

    29 class CCalenInterimUtils2Impl;

    30 class MCalenEComChangeObserver;

    31 

    32 /**

    33 * CCalenEComWatcher watches for changes to the ECOM registry and forces a recheck

    34 * of meetng request availablity

    35 */

    36 NONSHARABLE_CLASS(CCalenEComWatcher) : public CActive

    37     {

    38     public: 

    39         /**

    40         * Constructor.

    41         * @param aUtils CCalenInterimUtils2Impl reference

    42         * @return a pointer to the new CCalenEComWatcher instance

    43         */

    44         IMPORT_C static CCalenEComWatcher* NewL( MCalenEComChangeObserver& aObserver );

    45 

    46         /**

    47         * Destructor

    48         */

    49         ~CCalenEComWatcher();

    50 

    51         /**

    52         * From CActive

    53         * Called when outstanding asynchronous request completes

    54         * This will be called when iNotificationTimer either completes

    55         * or is cancelled

    56         */

    57         void RunL();

    58 

    59         /**

    60         * From CActive

    61         * Called by the active scheduler if RunL leaves

    62         * Ensures we are ready to receive the next database event

    63         */

    64         TInt RunError();

    65 

    66         /**

    67         * From CActive

    68         * Implements cancellation of outstanding asynchronous requests

    69         * Cancels iNotificationTimer if started

    70         */

    71         void DoCancel();

    72 

    73     private:

    74         /**

    75         * C++ default constructor.

    76         * @param aUtils CCalenInterimUtils2Impl reference

    77         */

    78         CCalenEComWatcher( MCalenEComChangeObserver& aObserver );

    79 

    80         /**

    81         * By default Symbian 2nd phase constructor is private.

    82         * Performs any construction which may leave

    83         */

    84         void ConstructL();

    85 

    86     private:

    87         REComSession iSession;

    88         MCalenEComChangeObserver& iEComObserver;

    89     };

    90 

    91 #endif // __CALENECOMWATCHER_H__

    92 

    93 // End of File