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 "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:  DOS Server Monitor Class is used to monitor Audio Accessorries,

    15 *                and encapsulate the interfaces with DOS Server.

    16 *

    17 */

    18 

    19 

    20 

    21 #ifndef CHeadsetButtonMonitor_H

    22 #define CHeadsetButtonMonitor_H

    23 

    24 #include <e32base.h>

    25 #include <dossvrservices.h>

    26 #include <psvariables.h>		// Property values

    27 

    28 

    29 /**

    30 * DOS Server Monitor Class is used to monitor Audio Accessorries,

    31 * and encapsulate the interfaces with DOS Server.

    32 */

    33 class CVoiceProgressDialog;

    34 class CPlaybackVoiceDialog;

    35 class CHeadsetButtonMonitor : public CDosEventListenerBase

    36     {

    37     public: // Constructors and destructor

    38 

    39         /**

    40         * The CVoiceTagHeadsetButtonMonitor destructor

    41         * @param 

    42         * @return 

    43         */   

    44         virtual ~CHeadsetButtonMonitor();

    45 

    46 

    47         /**

    48         * 2nd phase CVoiceTagHeadsetButtonMonitor constructor

    49         * @param aObserver - an observer to be notified when the disruption occurred.

    50         * @return a pointer to the new CActiveClass0SMSMonitor object

    51         */   

    52         static CHeadsetButtonMonitor* NewLC();

    53 

    54 

    55         /**

    56         * 2nd phase CVoiceTagHeadsetButtonMonitor constructor

    57         * @param aObserver - an observer to be notified when the disruption occurred.

    58         * @return a pointer to the new CActiveClass0SMSMonitor object

    59         */   

    60         static CHeadsetButtonMonitor* NewL();

    61 

    62     public:

    63     

    64         /**

    65         * Method to handle the registration for Audio Accessories disruption monitor.

    66         * @param aDisruptionType - a disruption type to be monitored

    67         * @return - Symbian standard error response

    68         */   

    69         TInt ActivateMonitorL();

    70 

    71 

    72         /**

    73         * Method to handle the deregistration of monitoring class 0 SMS

    74         * @param aDisruptionType - a disruption type to be stopped monitoring

    75         * @return 

    76         */  

    77         TInt DeActivateMonitor();

    78 

    79         /**

    80         * Method to handle the deregistration of monitoring class 0 SMS

    81         * @param aDisruptionType - a disruption type to be stopped monitoring

    82         * @return 

    83         */  

    84         void Register(CVoiceProgressDialog* aProgressObserver,CPlaybackVoiceCommandDialog* aPlaybackObserver);

    85 

    86         /**

    87         * Method to handle the deregistration of monitoring class 0 SMS

    88         * @param aDisruptionType - a disruption type to be stopped monitoring

    89         * @return 

    90         */  

    91         void DeRegister(CVoiceProgressDialog* aProgressObserver,CPlaybackVoiceCommandDialog* aPlaybackObserver);

    92 

    93 

    94         /**

    95         * Method to cancel the monitoring operation from Dos Server

    96         * @param 

    97         * @return 

    98         */   

    99         void CancelMonitor();

   100 

   101     protected:

   102 

   103         /**

   104         * It notifies about a change in the status of the headset.

   105         * @param aStatus The new status.

   106         * @return void

   107         */ 

   108 		void HeadsetButtonChangedL(EPSButtonState aState);

   109 

   110         /**

   111         * Handles headset button down operation

   112         * @return void

   113         */

   114         void HandleButtonDown();

   115         

   116         /**

   117         * Handles head set button up operation

   118         * return void

   119         */

   120         void HandleButtonUp();

   121         

   122         /**

   123         * Handles head set button long press down operation

   124         * return void

   125         */

   126         void HandleButtonDownLong();

   127 

   128       private:

   129 

   130         /**

   131         * 2nd phase CVoiceTagHeadsetButtonMonitor constructor

   132         * @param 

   133         * @return 

   134         */   

   135         void ConstructL();

   136 

   137        /**

   138         * The CVoiceTagHeadsetButtonMonitor constructor

   139         * @param aObserver - an observer to be notified when the disruption occurred.

   140         * @return 

   141         */   

   142         CHeadsetButtonMonitor ();

   143 

   144     private: // data

   145 

   146         RDosServer                   iDosServerSession;

   147         CVoiceProgressDialog*        iProgressObserver;

   148         CPlaybackVoiceCommandDialog* iPlaybackObserver;

   149         TBool                        iButtonDown;

   150     };

   151 

   152 

   153 #endif // CHeadsetButtonMonitor_H

   154 

   155 

   156 // End of File