1 /*

     2 * Copyright (c) 2007 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:  observer handler class

    15 *

    16 *  Copyright © 2007 Nokia.  All rights reserved.

    17 *  This material, including documentation and any related computer

    18 *  programs, is protected by copyright controlled by Nokia.  All

    19 *  rights are reserved.  Copying, including reproducing, storing,

    20 *  adapting or translating, any or all of this material requires the

    21 *  prior written consent of Nokia.  This material also contains

    22 *  confidential information which may not be disclosed to others

    23 *  without the prior written consent of Nokia.

    24 

    25 *

    26 *

    27 */

    28 

    29 

    30 #include <e32base.h>

    31 #include "CamObservable.h"

    32 

    33 #ifndef CAMOBSERVERHANDLER_H

    34 #define CAMOBSERVERHANDLER_H

    35 

    36 class CCamObserverHandler : public CBase, public MCamObservable

    37     {

    38 public:

    39 	/**

    40 	*	Static factory construction function

    41     *   @since 2.8

    42 	*	@return pointer to constructed instance of CCamNaviCounterModel

    43 	*/

    44 	static CCamObserverHandler* NewL();

    45 

    46     /**

    47     * Destructor.

    48     */

    49     ~CCamObserverHandler();

    50     

    51     

    52 public:

    53     /**

    54     * Registers an observer if not previously registered

    55     * @param aObserver The observer concerned

    56     * @since 3.0

    57     */

    58     void RegisterObserverL(MCamObserver* aObserver);

    59     

    60     /**

    61     * Deregisters an observer if previously registered

    62     * @param aObserver The observer concerned

    63     * @since 3.0

    64     */

    65     void DeregisterObserver(MCamObserver* aObserver);

    66     

    67     /**

    68     * Broadcasts an event code to all registered observers

    69     * @param aEvent The event code

    70     */    

    71     void BroadcastEvent(TCamObserverEvent aEvent);

    72 

    73 protected:

    74     /**

    75     * C++ Constructor

    76     */

    77     CCamObserverHandler();

    78     

    79     /**

    80     * Second-phase constructor

    81     */

    82     void ConstructL();

    83     

    84 private:

    85     // Internal list of observers

    86     RPointerArray<MCamObserver> iObservers;

    87     };

    88         

    89 #endif // CAMOBSERVERHANDLER_H