1 // Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Interface class for media plug-ins

    15 // 

    16 

    17 #ifndef __TRACECOREPLUGINIF_H__

    18 #define __TRACECOREPLUGINIF_H__

    19 

    20 

    21 // Include files

    22 #include <kernel/kernel.h>

    23 #include "TraceCoreMediaIf.h"

    24 

    25 

    26 // Forward declarations

    27 class DTraceCoreMediaPlugin;

    28 class TTraceMessage;

    29 

    30 /**

    31  * Interface class for media plug-ins

    32  */

    33 NONSHARABLE_CLASS( DTraceCorePluginIf ) : public DTraceCoreMediaIf

    34     {

    35 public:

    36 

    37     /**

    38      * Constructor

    39      */

    40     DTraceCorePluginIf();

    41     

    42     /**

    43      * Destructor

    44      */

    45     ~DTraceCorePluginIf();

    46     

    47     /**

    48      * Initializes this interface

    49      * 

    50      * @param aCallback Callback interface which is notified when ISI messages are received

    51      */

    52 	TInt Init( MTraceCoreMediaIfCallback& aCallback );

    53 	

    54 	/**

    55 	 * Sends a message

    56 	 *

    57 	 * @param aMsg The message to be sent

    58 	 */

    59 	TInt Send( TTraceMessage& aMsg );

    60 	

    61 	/**

    62 	 * Registers a media plug-in

    63 	 */

    64 	TInt RegisterPlugin( DTraceCoreMediaPlugin& aPlugin );

    65 	

    66 	/**

    67 	 * Unregisters a media plug-in

    68 	 */

    69 	void UnregisterPlugin( DTraceCoreMediaPlugin& aPlugin );

    70 	

    71 	/**

    72 	 * Message was received by plug-in

    73      * 

    74      * @param aMsg The message that was received

    75 	 */

    76 	void MessageReceived( TTraceMessage &aMsg );

    77 	

    78 private:

    79 

    80     /**

    81      * Media plug-in. Currently only one supported

    82      */

    83     DTraceCoreMediaPlugin* iMediaPlugin;

    84     };

    85 

    86 #endif // __TRACECOREPLUGINIF_H__

    87 

    88 // End of File