1 /*

     2 * Copyright (c) 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:

    15 *

    16 */

    17 #ifndef CDLCHANGEOBSERVER_H

    18 #define CDLCHANGEOBSERVER_H

    19 

    20 #include <e32base.h>

    21 #include "CdlEngine.h"

    22 #include "CdlClientServerStd.h"

    23 

    24 class RCdlSession;

    25 class CCdlEngine;

    26 

    27 /**

    28 * Active object that watches out for changes from the CDL server.

    29 */

    30 NONSHARABLE_CLASS(CCdlChangeMonitor) : public CActive

    31 	{

    32 public:

    33 	CCdlChangeMonitor(RCdlSession& aServer, CCdlEngine* aEngine);

    34 	~CCdlChangeMonitor();

    35 

    36 private:

    37 	void Queue();

    38 	void RunL();

    39 	void DoCancel();

    40 	void ProcessL();

    41 

    42 private:

    43 	RCdlSession& iServer;

    44 	CCdlEngine* iEngine;					// not owned

    45 	TPckgBuf<SCdlServerChange> iChange;

    46 	};

    47 

    48 /**

    49 * CCdlChangeObserver records all the UIDs that a particular observer is interested in

    50 */

    51 NONSHARABLE_CLASS(CCdlChangeObserver) : public CBase

    52 	{

    53 public:

    54 	static CCdlChangeObserver* NewLC(MCdlChangeObserver* aObserver, TUid aUid);

    55 	static CCdlChangeObserver* NewLC(MCdlChangeObserver* aObserver);

    56 	~CCdlChangeObserver();

    57 

    58 	MCdlChangeObserver* Observer() const;

    59 	void AddUidL(TUid aUid);

    60 

    61 	void HandleCustomisationChangeL(const CCdlUids& aUids);

    62 	void HandleAvailableRefsChangeL();

    63 

    64 private:

    65 	MCdlChangeObserver* iObserver;			// not owned

    66 	CCdlUids iUids;

    67 	};

    68 

    69 

    70 /**

    71 * Collection of CCdlChangeObserver objects.

    72 */

    73 NONSHARABLE_CLASS(CCdlChangeObservers) : public CBase

    74 	{

    75 public:

    76 	CCdlChangeObservers();

    77 	~CCdlChangeObservers();

    78 

    79 	void AddCustomisationChangeObserverL(MCdlChangeObserver* aObserver, TUid aUid);

    80 	void AddGeneralChangeObserverL(MCdlChangeObserver* aObserver);

    81 	void RemoveChangeObserver(MCdlChangeObserver* aObserver);

    82 

    83 	void HandleCustomisationChangeL(const CCdlUids& aUids);

    84 	void HandleAvailableRefsChangeL();

    85 

    86 private:

    87 	TInt FindIndex(MCdlChangeObserver* aObserver) const;

    88 

    89 private:

    90 	typedef CArrayPtrFlat<CCdlChangeObserver> CCdlChangeObserverArray;

    91 	CCdlChangeObserverArray iObservers;		// contained CCdlChangeObservers are owned

    92 	};

    93 

    94 

    95 #endif