/*
* 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: header of EventAO class.
*
*/
#ifndef C_CEVENTAO_H
#define C_CEVENTAO_H
// INCLUDES
#include <e32base.h>
namespace multimedia
{
// Observer
/**
* Observer that monitors the Source State changes
* @lib EnhancedMediaClient.lib
* @since S60 v3.2
*/
class MSourceStateObserver
{
public:
virtual void SourceStateChanged() = 0;
};
/**
* Active Object that monitors the Source State Change
* Event from the Source Side
* @lib EnhancedMediaClient.lib
* @since S60 v3.2
*/
class CEventAO : public CActive
{
public: // Constructors and destructor
/**
* Function to Create the Object.
* @param aObserver Observer to callback the Event.
*/
static CEventAO* NewL(MSourceStateObserver& aObserver);
/**
* Destructor.
*/
virtual ~CEventAO();
/**
* From CActive.
* Indicates that this active object has issued a
* request and that it is now outstanding
*
* @since S60 v3.2
*/
void SetActive();
/**
* From CEventAO.
* Returns the Error Stoted on Completion of the Request
*
* @since S60 v3.2
*/
TInt Error();
protected:
// From CActive
void RunL();
void DoCancel();
TInt RunError( TInt aError );
private:
CEventAO( MSourceStateObserver& aObserver );
void ConstructL();
private:
/**
* Observer stored to Callback
*/
MSourceStateObserver& iObserver;
/**
* Error Stored upon Request Completion
*/
TInt iError;
};
} // namespace multimedia
#endif // C_CEVENTAO_H
// End of File