multimediacommscontroller/mmccinterface/inc/mmccevent.h
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     1 /*
       
     2 * Copyright (c) 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:    MCC EventHandler
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 #ifndef __MCC_EVENT_H__
       
    22 #define __MCC_EVENT_H__
       
    23 
       
    24 // INCLUDES
       
    25 #include <e32base.h>
       
    26 #include <mmf/common/mmfcontroller.h>
       
    27 #include "mccdef.h"
       
    28 #include "mmccevents.h"
       
    29 #include "mccinternaldef.h"
       
    30 
       
    31 // CONSTANTS
       
    32 
       
    33 // MACROS
       
    34 
       
    35 // DATA TYPES
       
    36 
       
    37 // FUNCTION PROTOTYPES
       
    38 
       
    39 // FORWARD DECLARATIONS
       
    40 class MMccCtrlObserver;
       
    41 
       
    42 // CLASS DECLARATION
       
    43 
       
    44 /**
       
    45 *  CMccEvent receives event notifications from the controller plugin and forwards 
       
    46 *  them to the client by calling corresponding callback functions of the 
       
    47 *  MMCCCtrlObserver.
       
    48 *
       
    49 *  @lib MCCInterface.lib
       
    50 *  @since Series 60 3.0
       
    51 */
       
    52 #ifdef EKA2
       
    53 NONSHARABLE_CLASS( CMccEvent ) : public CActive
       
    54 #else
       
    55 class CMccEvent : public CActive
       
    56 #endif
       
    57     {
       
    58     #ifdef TEST_EUNIT 
       
    59         friend class UT_CMCCInterface;
       
    60     #endif
       
    61     
       
    62     public:  // Constructors and destructor
       
    63         
       
    64         /**
       
    65         * Two-phased constructor.
       
    66         */
       
    67         static CMccEvent* NewL( RMMFController& aController, 
       
    68                                 MMccCtrlObserver& aObserver );
       
    69         
       
    70         /**
       
    71         * Destructor.
       
    72         */
       
    73         virtual ~CMccEvent();
       
    74 
       
    75     public: // New functions
       
    76         /**
       
    77         * Requests for event from Controller plugin and starts event listening loop.
       
    78         * @since    Series 60 3.0
       
    79         * @return   void
       
    80         */
       
    81         void RequestEventNotification();
       
    82 
       
    83     protected: // From CActive
       
    84         /**
       
    85         * From CActive Handles an active object’s request completion event.
       
    86         * @since Series 60 3.0
       
    87         * @return None
       
    88         */
       
    89         void RunL();
       
    90         
       
    91         /**
       
    92         * From CActive
       
    93         */
       
    94         TInt RunError( TInt aError );
       
    95         
       
    96         /**
       
    97         * From CActive Implements cancellation of an outstanding request.
       
    98         * @since Series 60 3.0
       
    99         * @return None
       
   100         */
       
   101         void DoCancel();
       
   102     
       
   103     private: // New functions
       
   104         
       
   105         /**
       
   106         * Handles an media event
       
   107         * @since Series 60 3.0
       
   108         * @param aEvent Media event
       
   109         * @return void
       
   110         */
       
   111         void HandleMccMediaEvent( const TMccEvent& aEvent );
       
   112         
       
   113         /**
       
   114         * Handles state change
       
   115         * @since Series 60 3.0
       
   116         * @param aEvent Statechange event
       
   117         * @return void
       
   118         */
       
   119         void HandleMccStateChangeEvent( const TMccEvent& aEvent );
       
   120         
       
   121         /**
       
   122         * Handles error event
       
   123         * @since Series 60 3.0
       
   124         * @param aEvent Error event
       
   125         * @return void
       
   126         */
       
   127         void HandleMccErrorEvent( const TMccEvent& aEvent );
       
   128         
       
   129         /**
       
   130         * Handles inactivity event
       
   131         * @since Series 60 3.0
       
   132         * @param aEvent Error event
       
   133         * @return void
       
   134         */
       
   135         void HandleMccInactivityEvent( const TMccEvent& aEvent );
       
   136 
       
   137         /**
       
   138         * Handles activity event
       
   139         * @since Series 60 3.0
       
   140         * @param aEvent Error event
       
   141         * @return void
       
   142         */
       
   143         void HandleMccActivityEvent( const TMccEvent& aEvent );
       
   144 		
       
   145         /**
       
   146          * Handles unknown media event
       
   147          *
       
   148          * @since Series 60 3.0
       
   149          * @param aEvent Event
       
   150          * @return void
       
   151          */
       
   152         void HandleMccUnknownMediaEvent( const TMccEvent& aEvent );
       
   153 		
       
   154     private:
       
   155 
       
   156         /**
       
   157         * C++ default constructor.
       
   158         */
       
   159         CMccEvent( RMMFController& aController, 
       
   160                    MMccCtrlObserver& aCallback );
       
   161 
       
   162         /**
       
   163         * By default Symbian 2nd phase constructor is private.
       
   164         */
       
   165         void ConstructL();
       
   166 
       
   167 
       
   168     private:    // Data
       
   169         
       
   170         // Handle to the controller plugin for sending custom commands
       
   171         RMMFController& iController;
       
   172 
       
   173         // Callback object to inform client about events
       
   174         MMccCtrlObserver& iEventCallBack;
       
   175 
       
   176         // Destination of the custom command
       
   177         TMMFMessageDestinationPckg iMessageDest; 
       
   178 
       
   179         // Contains information about event after completion of 
       
   180         // notification request issued to the controller
       
   181         TMccEventPackage iPackage;
       
   182     
       
   183     private:
       
   184         #ifdef TEST_EUNIT
       
   185         friend class UT_CMccInterface;
       
   186         #endif   
       
   187     };
       
   188 
       
   189 #endif /* __MCC_EVENT_H__ */
       
   190             
       
   191 // End of File