1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __LOGSERVVIEWCHANGEMANAGER_H__

    17 #define __LOGSERVVIEWCHANGEMANAGER_H__

    18 

    19 #include <logcli.h>

    20 #include "LogChangeDefinition.h"

    21 #include "LogCliServShared.h"

    22 #include "LogServBackupObserver.h"

    23 #include "LogServDatabaseChangeObserver.h"

    24 

    25 // Classes referenced

    26 class MLogServDatabaseChangeInterface;

    27 

    28 

    29 /////////////////////////////////////////////////////////////////////////////////////////

    30 // -----> CLogServViewBase (header)

    31 /////////////////////////////////////////////////////////////////////////////////////////

    32 /**

    33 @internalComponent

    34 */

    35 class CLogServViewChangeManager : public CBase

    36 	{

    37 public:

    38 	static CLogServViewChangeManager* NewL(MLogServDatabaseChangeInterface& aChangeInterface);

    39 	~CLogServViewChangeManager();

    40 

    41 private:

    42 	CLogServViewChangeManager(MLogServDatabaseChangeInterface& aChangeInterface);

    43 	void ConstructL();

    44 

    45 public: // CHANGE TRANSACTION

    46 

    47 	/**

    48 	 *

    49 	 */

    50 	void ChangeTransactionPrepare();

    51 

    52 	/**

    53 	 *

    54 	 */

    55 	void ChangeTransactionSubmitL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);

    56 

    57 	/**

    58 	 *

    59 	 */

    60 	void ChangeTransactionCommitL();

    61 

    62 

    63 public: // CHANGE DELIVERY

    64 

    65 	/**

    66 	 * Deliver the next available batch of changes. Panics if there

    67 	 * aren't any.

    68 	 */

    69 	void DeliverChangesL(const RMessage2& aMessage);

    70 

    71 public: // CHANGE REQUEST MANAGEMENT

    72 

    73 	/**

    74 	 * The client has requested change notifications

    75 	 */

    76 	void RequestChangeNotifications(const RMessage2& aMessage);

    77 

    78 	/**

    79 	 * The client has cancelled a previous change notification request

    80 	 */

    81 	void RequestChangeNotificationsCancel();

    82 

    83 private:

    84 	void NotifyClient();

    85 	void CompleteClientChangeMessage(TInt aCompletionCode);

    86 

    87 private:

    88 	MLogServDatabaseChangeInterface& iChangeInterface;

    89 

    90 	/**

    91 	 * Completed when the view contents change

    92 	 */

    93 	RMessagePtr2 iClientSideChangeMessage;

    94 

    95 	/**

    96 	 * A buffer which contain the list of changed items

    97 	 * for the current change transaction

    98 	 */

    99 	CLogChangeDefinition* iTransientChangeDefinition;

   100 

   101 	/**

   102 	 * All the change 'packages' which are outstanding for this client

   103 	 */

   104 	RPointerArray<CBufBase> iPendingChanges;

   105 

   106 	};

   107 

   108 #endif