/*
* Copyright (c) 2006 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: Videoteleng API extension configuration
*
*/
#ifndef CVTENGEXTENSIONS_H
#define CVTENGEXTENSIONS_H
// INCLUDES
#include <e32base.h>
#include "vtengcommands.h"
// CONSTANTS AND MACROS
const TInt KExtensionGranularity = 1;
// FORWARD DECLARATIONS
class CVtEngExtensionBase;
class CVtEngCameraPreferences;
class CVtEngOperation;
class CVtEngMediaHandler;
// CLASS DECLARATION
/**
* Video telephony extension handling.
*
* @lib videoteleng.lib
* @since S60 v3.2
*/
NONSHARABLE_CLASS(CVtEngExtensions): public CBase
{
public: // Constructor and destructor.
/**
* Symbian two-phase constructor.
* @return engine extension instance
*/
static CVtEngExtensions* NewL();
/**
* Destructor.
*/
~CVtEngExtensions();
public:
/**
* Gets client interface from certain extension
* @param aInterfacePtr a pointer to client IF pointer
* @param aUid requested client IF extension UID
* @param aHandler a handle to media handler
*/
TInt GetClientInterface( TAny** aInterfacePtr,
const TUid& aUid , CVtEngMediaHandler& aHandler );
/**
* Offers operation for extensions
* @param aOp operation pointer
* @return TBool value indicating if any of exsisting extension
* was able to handle operation
*/
TBool OfferOperationL( CVtEngOperation* aOp );
/**
* Validates extension command
* @param aCommandId command ID (TInt)
* @return TBool value indicating if any of exsisting extension
* was able to validate operation
*/
TBool ValidateCommand( const TVtEngCommandId aCommandId );
private:
/**
* C++ default constructor.
*/
CVtEngExtensions();
/**
* Symbian constructor that may leave.
*/
void ConstructL();
/**
* Creates certain extension
*/
CVtEngExtensionBase* CreateExtensionsL( const TUid& aUid,
CVtEngMediaHandler& aHandler );
/**
* Search extensions using UID
*/
TInt LookupExtensions( const TUid& aUid) const;
private:
// Extension handle container
RPointerArray <CVtEngExtensionBase> iExtensionArray;
};
#endif //CVTENGEXTENSIONS_H