1 /** @file

     2 * Copyright (c) 2005-2006 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:  Header file of the class CHttpTransferTimer.

    15 *

    16 */

    17 

    18 

    19 #ifndef C_HTTPTRANSFERTIMER_H

    20 #define C_HTTPTRANSFERTIMER_H

    21 

    22 // system includes

    23 #include <e32base.h>

    24 #include <e32cons.h>

    25 

    26 // forward declarations

    27 class MHttpTransferTimerObserver;

    28 

    29 /**

    30  * This class is a timer that launches new transfers in CHttpUploader

    31  * and CHttpDownloader

    32  *

    33  *

    34  * @lib httptransfer.lib

    35  * @since S60 v3.2

    36  */

    37 class CHttpTransferTimer : public CBase,

    38                            public MBeating

    39     {

    40 public:

    41 

    42     /**

    43      * Static NewL method to construct the timer.

    44      *

    45      * @since S60 3.2

    46      * @param aInterval Timer interval in seconds 

    47      * @param aCallback The call back reference 

    48      * @return CHttpTransferTimer* timer instance

    49      */

    50     static CHttpTransferTimer* NewL( 

    51                                 TInt aInterval,

    52                                 MHttpTransferTimerObserver* aCallback );

    53 

    54     /**

    55      * Destructor

    56      *

    57      * @since S60 v3.2

    58      */

    59     virtual ~CHttpTransferTimer();

    60 

    61 private:

    62 

    63     /**

    64      * Second phase constructor

    65      *

    66      * @since S60 v3.2

    67      */

    68     void ConstructL();

    69 

    70     /**

    71      * Constructor

    72      *

    73      * @since S60 v3.2

    74      * @param aInterval Interval when call back is called

    75      * @param aCallback Callback interface

    76      */

    77     CHttpTransferTimer( TInt aInterval,

    78                         MHttpTransferTimerObserver* aCallback );

    79 

    80 private: 

    81 

    82 // From base class MBeating

    83 

    84     /**

    85      * Called when the beat is in sync.

    86      *

    87      * @since S60 3.0

    88      */

    89     void Beat();

    90 

    91     /**

    92      * Called when the beat needs to be syncronized.

    93      *

    94      * @since S60 3.0

    95      */

    96     void Synchronize() {}

    97 

    98 private: 

    99     

   100     /**

   101      * Heartbeat active object

   102      * Own.

   103      */

   104     CHeartbeat* iHeartbeat;

   105 

   106     /**

   107      * Call back pointer.

   108      * Not own.

   109      */

   110     MHttpTransferTimerObserver *iCallback;

   111 

   112     /**

   113      * Interval in seconds

   114      */

   115     TInt iInterval;

   116     

   117     /**

   118      * Counter

   119      */

   120     TInt iCounter;

   121      

   122     };

   123 

   124 #endif // C_HTTPTRANSFERTIMER_H

   125 

   126 // End of file