1 /*

     2 * Copyright (c) 2002-2004 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 interface for audio player.

    15 *

    16 */

    17 

    18 

    19 #ifndef MPHONEAUDIOPLAYEROBSERVER_H

    20 #define MPHONEAUDIOPLAYEROBSERVER_H

    21 

    22 // INCLUDES

    23 #include "phoneconstants.h"

    24 

    25 // CLASS DECLARATION

    26 

    27 /**

    28 *  Observer interface for audio player.

    29 *

    30 * @since 1.0

    31 */

    32 class MPhoneAudioPlayerObserver

    33     {

    34     public:  // Constructors and destructor

    35         

    36         // Enumerates different failures.

    37         //

    38         // EAudioPlayerInitializingFailure - failure in initialising

    39         // EAudioPlayerPlayingFailure - failure during playing

    40         enum TPhoneAudioPlayerErrorEvent

    41             {

    42             EAudioPlayerInitializingFailure,

    43             EAudioPlayerPlayingFailure

    44             };

    45         

    46         /**

    47         * Observe the error.

    48         * @param aEvent the error event happend in initializing or playing.

    49         * @param aError The error code return by audio server. Observer can 

    50         *               handle  these two error code for recoverable 

    51         *               and unrecoverable errors.

    52         * @param aId Indicate which audio player is outof working.

    53         */

    54         virtual void HandleAudioPlayerError( 

    55             TPhoneAudioPlayerErrorEvent aEvent,

    56             TInt aError, 

    57             TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;

    58 

    59         /**

    60         * This function is called when audio player initialization complete.

    61         * @param aId The id of the audio player.

    62         */

    63         virtual void HandleAudioPlayerInitComplete(

    64             TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;

    65 

    66         /**

    67         * This funciton is called after the playing complete successfully.

    68         * @param aId The id of the audio player.

    69         */

    70         virtual void HandlePlayingComplete( 

    71             TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;

    72     };

    73 

    74 #endif      // MPHONEAUDIOPLAYEROBSERVER_H   

    75             

    76 // End of File