1 /*

     2 * Copyright (c) 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 the License "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:  Class which implements handling Hardware Key events.

    15 *                This class implements methods of MRemConCoreApiTargetObserver

    16 *

    17 */

    18 

    19 

    20 #ifndef BAVPHWKEYEVENTS_H

    21 #define BAVPHWKEYEVENTS_H

    22 

    23 // INCLUDES

    24 #include <RemConCoreApiTargetObserver.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class CRemConInterfaceSelector;

    28 class CRemConCoreApiTarget;

    29 class MRemConCoreApiTargetObserver;

    30 

    31 // CONSTANTS

    32 

    33 // CLASS DECLARATION

    34 /**

    35 *  MBavpHwKeyEventsObserver class for hardware key events

    36 *  This class implements methods of MRemConCoreApiTargetObserver

    37 *  @lib npBrowserVideoPlugin.lib

    38 *  @since 3.2

    39 */

    40 class MBavpHwKeyEventsObserver

    41     {

    42     public:

    43         /**

    44         * Called when volume level should be changed.

    45         * @since 3.2

    46     	* @param aVolumeChange: +1 change volume up

    47         *                       -1 change volume down

    48         * @return void

    49         */

    50         virtual void BavpHwKeyVolumeChange( TInt aVolumeChange ) = 0;

    51 

    52         /**

    53         * Called when a media hardware key (play, pause...) was presed.

    54         * @since 3.2

    55     	* @param aCommand: Command ID representing Play, Pause, ...

    56         * @return void

    57         */

    58         // Incr15 SCO item that was cancelled.

    59         // virtual void BavpHwKeyCommand( TBavpCommandIds aCommand ) = 0;

    60     };

    61     

    62 /**

    63 *  CBavpHwKeyEvents class to handle Side Volume Key events

    64 *  @lib npBrowserVideoPlugin.lib

    65 *  @since 3.2

    66 */

    67 class CBavpHwKeyEvents : public CBase,

    68 					     public MRemConCoreApiTargetObserver

    69     {

    70     public: // Constructors and destructor

    71 

    72         /**

    73         * Symbian constructor

    74         * @param aObserver observer to implement callback functions

    75         */

    76         static CBavpHwKeyEvents* NewL( MBavpHwKeyEventsObserver& aObserver );

    77 

    78         /**

    79         * Destructor.

    80         */

    81         ~CBavpHwKeyEvents();

    82 

    83     private: // Constructors and destructor

    84 

    85     	/**

    86     	* Default constructor.

    87         * @since 3.2

    88         */

    89         CBavpHwKeyEvents( MBavpHwKeyEventsObserver& aObserver );

    90 

    91         /**

    92         * Constructor.

    93         * @since 3.2

    94         */

    95          void ConstructL();

    96          

    97     protected: // From MRemConCoreApiTargetObserver

    98     

    99 		/* Handles hardware key events

   100         * @since 3.2

   101     	*/

   102     	void MrccatoCommand( TRemConCoreApiOperationId aOperationId, 

   103     	 					 TRemConCoreApiButtonAction aButtonAct );

   104 

   105     private:

   106 

   107         /**

   108         * Change volume depending on the level of increase or decrease

   109         * @since 3.2

   110         */

   111         void DoChangeVolume( );

   112 

   113         /**

   114         * VolumeTimerCallback is the callback function called from change volume timer.

   115         * @since 3.2

   116         */

   117         static TInt VolumeTimerCallback( TAny* aThis );

   118 

   119     private:    // data

   120     

   121         MBavpHwKeyEventsObserver& iObserver;

   122         

   123         CRemConInterfaceSelector* iInterfaceSelector;

   124         

   125         CRemConCoreApiTarget* iCoreTarget;

   126         

   127         CPeriodic* iVolumeTimer;

   128             

   129         // Indicates size of volume level change

   130         TInt iChange;

   131         };

   132 

   133 #endif // BAVPHWKEYEVENTS_H

   134 

   135 // End of File