mobilemessaging/audiomsg/inc/audiomessagebeep.h
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     1 /*
       
     2 * Copyright (c) 2005-2006 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 "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 that handles playback of tones in AudioMessage application
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 #ifndef AUDIOMESSAGEBEEP_H
       
    21 #define AUDIOMESSAGEBEEP_H
       
    22 
       
    23 #include <mdaaudiotoneplayer.h>
       
    24 
       
    25 class CAknKeySoundSystem;
       
    26 class CAknSoundInfo;
       
    27 
       
    28 /**
       
    29  *  Class that handles playback of tones in audiomessage application
       
    30  *
       
    31  *  @lib audiomessage.exe
       
    32  *  @since S60 v3.1
       
    33  */
       
    34 NONSHARABLE_CLASS( CAudioMessageBeep )
       
    35 	: public CBase, public MMdaAudioToneObserver
       
    36     {
       
    37 
       
    38 private:
       
    39 	enum TVRTonePlayerState
       
    40 		{
       
    41 		EVRToneIdle,
       
    42 		EVRTonePreparing,
       
    43 		EVRTonePlaying
       
    44 		};
       
    45 
       
    46 public:
       
    47 
       
    48     /**
       
    49      * Factory function to create this object
       
    50      *
       
    51      * @param aApp   Reference to application instance
       
    52      */
       
    53     static CAudioMessageBeep* NewL();
       
    54 
       
    55     /**
       
    56      * Destructor
       
    57      */
       
    58     virtual ~CAudioMessageBeep();
       
    59 
       
    60     /**
       
    61      * Prepares a tone for playback. This does not guarantee
       
    62      * that preparing is ready after completion.
       
    63      *
       
    64      * @since S60 v3.0
       
    65      * @param aToneId Predefined id of the tone to be prepared
       
    66      */
       
    67     void PrepareToneL( TInt aToneId );
       
    68 
       
    69     /**
       
    70      * Non-leaving method that calls PrepareToneL and ignores all leaves
       
    71      *
       
    72      * @since S60 v3.0
       
    73      * @param aToneId Predefined id of the tone to be prepared
       
    74      */
       
    75     void PrepareTone( TInt aToneId );
       
    76 
       
    77     /**
       
    78      * Starts playback of tone. Playback starts immediately if the tone
       
    79      * specified has been already been prepared. Otherwise the tone
       
    80      * is first prepared.
       
    81      *
       
    82      * @since S60 v3.0
       
    83      * @param aToneId Predefined id of the tone to be played
       
    84      */
       
    85     void PlayTone( TInt aToneId );
       
    86 
       
    87 // from base class MMdaAudioToneObserver
       
    88 
       
    89     /**
       
    90      * From MMdaAudioToneObserver.
       
    91      * Defines required client behaviour when an attempt to configure the
       
    92 	 * audio tone player utility has completed, successfully or otherwise.
       
    93      *
       
    94 	 * @param     aError KErrNone if successful. One of the system
       
    95 	 *            wide error codes if the attempt failed. The possible
       
    96 	 *            values depend on the EPOC platform.
       
    97      */
       
    98     void MatoPrepareComplete(TInt aError);
       
    99 
       
   100     /**
       
   101      * From MMdaAudioToneObserver.
       
   102 	 * Defines required client behaviour when the tone playing operation has
       
   103 	 * completed, successfully or otherwise.
       
   104      *
       
   105 	 * @param     aError KErrNone if successful. One of the system
       
   106 	 *            wide error codes if the attempt failed. The possible
       
   107 	 *            values depend on the EPOC platform.
       
   108      */
       
   109     void MatoPlayComplete(TInt aError);
       
   110 
       
   111 private:
       
   112 
       
   113     CAudioMessageBeep();
       
   114     void ConstructL();
       
   115 
       
   116 private: // data
       
   117 
       
   118     /**
       
   119      * Instance of the player class.
       
   120      * Own.
       
   121      */
       
   122      CMdaAudioToneUtility* iPlayer;
       
   123 
       
   124 	/**
       
   125 	 * Pointer to sound system utility that retrieves the sound data.
       
   126 	 * Not owned.
       
   127 	 */
       
   128 	 CAknKeySoundSystem* iSoundSystem;
       
   129 
       
   130 	/**
       
   131 	 * The id of the tone that is currently prepared
       
   132 	 */
       
   133 	 TInt iPreparedTone;
       
   134 
       
   135 	/**
       
   136 	 * The id of the tone that is in queue
       
   137 	 */
       
   138 	 TInt iQueuedTone;	
       
   139 	 
       
   140 	/**
       
   141 	 * Is a tone currently in preparation?
       
   142 	 */
       
   143      TVRTonePlayerState iState;
       
   144 
       
   145     };
       
   146 
       
   147 #endif // CAudioMessageBeep_H