/*

 * Copyright (c) 2002-2008 Nokia Corporation and/or its subsidiary(-ies). 

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

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

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:   Header definition of plugin classes implementing devsound client

 *                custom interface extension.

 *

 */

 #ifndef CIEXTNCLIENTPLUGIN_H

 #define CIEXTNCLIENTPLUGIN_H

 // Include files

 #include <e32base.h>

 #include <a3f/mmfdevsoundcustominterfaceextensions.h>

 // Forward declarations

 class MCIFactoryIntfc;

 /**

  *  Plugin class implementing DevSound CI client Extension

  *

  *  An instance of this class is created when DevSound is created. When client

  *  calls CMMFDevSound::CustomInterface() function with UID that is not supported

  *  by platform version of A3F DevSound, the request is then forwarded to this

  *  plugin.

  *

  *  Only one instance of this plugin can exist in the system.

  *

  *  This class is intended to be used only by DevSound client implementation.

  *

  *  @since S60 v3.2

  *

  */

 class CCIExtnClientPlugin : public CBase,

                             public MDevSoundCIClientExtension

     {

 public:

     /**

      * Two-phased constructor.

      * Called by ECom framework.

      */

     static MDevSoundCIClientExtension* NewL();

     /**

     * Destructor.

     */

     ~CCIExtnClientPlugin();

     // From MDevSoundCIClientExtension begins

     // Called by framework when plugin is constructed

     TInt Setup( MCustomCommand& aCustomCommand );

     // Called by framework forwarding request to create a custom interface

     TInt CustomInterfaceExtension( TUid aUid, TAny*& aInterface );

     // Called by framework when plugin is to be deleted

     void Release();

     // Called by framework after plugin is created

     void PassDestructorKey( TUid aDestructorKey );

     // From MDevSoundCIClientExtension ends

 private:

     /**

      * Constructor.

      */

     CCIExtnClientPlugin();

     /**

      * Second phase constructor.

      */

     void ConstructL();

     /**

      * Initializes factory plugins list.

      *

      * Leaves on error.

      */

     void InitializeFactoryPluginsL();

 private:

     /**

      * Reference to MCustomCommand interface

      * Not own.

      */

     MCustomCommand*                 iMCustomCommand;

     /**

      * Uid of the plugin object passed by the framework via PassDestructorKey()

      */

     TUid                            iDestructorKey;

     /**

      * List of factory plugins. When framework calls

      * CustomInterfaceExtension() function, the request will be forwarded to each

      * factory plugin in this list until it is handled.

      *

      * Own.

      */

       RPointerArray<MCIFactoryIntfc>  iMCIFactoryIntfcList;

     };

 #endif // CIEXTNCLIENTPLUGIN_H