1 /*

     2 * Copyright (c) 2008 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:   This class implements starting Music play	

    15 *

    16 *

    17 */

    18 

    19 

    20 #ifndef BTRCCPLAYERSTATER_H

    21 #define BTRCCPLAYERSTATER_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 #include <remconcoreapitargetobserver.h>

    26 

    27 // FORWARD DECLARATIONS

    28 class CRemConCoreApiTarget;

    29 

    30 /**

    31 *  This class listens to AVRCP PLAY command by headset,if music player is not running 

    32 *  when such a command is received, it will be launched and requested to start playing.

    33 * */

    34 NONSHARABLE_CLASS(CPlayerStarter) : 

    35     public CActive, public MRemConCoreApiTargetObserver

    36 	{

    37 	

    38 public:

    39 

    40 	/**

    41 	* Two-phased constructor.

    42 	*      

    43 	*/

    44 	static CPlayerStarter* NewL();

    45 

    46 	/**

    47 	 * Set the reference for AVRCP Core API command receiving and

    48 	 * responses to those command.

    49 	 */

    50 	void SetCoreTarget(CRemConCoreApiTarget& aTarget);

    51 	

    52 	/**

    53 	* Destructor.

    54 	*/

    55 	~CPlayerStarter();

    56 	

    57 private:  // From CActive

    58 

    59     /**

    60     * Informs the observer that an accessory has created a control 

    61     * connection to our device.

    62     * @param                            None.

    63     * @return                           None.

    64     */

    65     void RunL();

    66 

    67     /**

    68     * Handles a possible leave from RunL().

    69     * @param aError                     The leave code from RunL().

    70     * @return                           KErrNone.

    71     */

    72     TInt RunError(TInt aError);

    73 

    74     /**

    75     * Cancels the volume change operation.

    76     * @param                            None.

    77     * @return                           None.

    78     */

    79     void DoCancel();

    80     

    81     // from base class MRemConCoreApiTargetObserver

    82 

    83     /**

    84      * From MRemConCoreApiTargetObserver

    85      * A 'play' command has been received.

    86      *

    87      * @param aSpeed The playback speed.

    88      * @param aButtonAct The button action associated with the command.

    89      */

    90     void MrccatoPlay(

    91         TRemConCoreApiPlaybackSpeed aSpeed,

    92         TRemConCoreApiButtonAction aButtonAct );

    93 

    94     /**

    95      * From MRemConCoreApiTargetObserver

    96      * A command has been received.

    97      *

    98      * @param aOperationId The operation ID of the command.

    99      * @param aButtonAct The button action associated with the command.

   100      */

   101     void MrccatoCommand(

   102         TRemConCoreApiOperationId aOperationId,

   103         TRemConCoreApiButtonAction aButtonAct );

   104 

   105 private:

   106 

   107         /**

   108         * C++ default constructor.

   109         */

   110         CPlayerStarter();

   111 

   112         /**

   113         * Symbian 2nd phase constructor.

   114         */

   115         void ConstructL();

   116 

   117         /**

   118          * Start music player if it is not running yet.

   119          */

   120         void StartPlayIfNeeded();

   121         

   122         /**

   123          * Tells if MPX music player is running or not.

   124          */

   125         TBool IsMusicPlayerRunning();

   126         

   127         /**

   128          * Launch MPX player.

   129          */

   130         void LaunchMusicPlayerL();

   131         

   132 private:

   133     enum TOpState

   134         {

   135         EIdle = 0, 

   136         ERespondPlayOk , // responding OK to play command is outstanding

   137         ERespondPlayNok,   // responding NOT OK to play command is outstanding

   138         EPlayMusicTiming,  // scheduling internal PLAY command to player

   139         };

   140     

   141 private:    // Data

   142     

   143     CRemConCoreApiTarget* iCoreTarget; // not own

   144     

   145 	RTimer iTimer;

   146 	

   147 	TOpState iState;

   148     };

   149 

   150 #endif      // BTRCCACLLINKLISTENER_H

   151             

   152 // End of File