/*

* Copyright (c) 2002 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:  

*     Messaging progress watching classes

*

*/

#ifndef __MUIUMSVSINGLEOPWATCHER_H__

#define __MUIUMSVSINGLEOPWATCHER_H__

//  INCLUDES

#include <e32base.h>

#include <msvstd.h>

// CONSTANTS

const TInt KMsvSingleOpWatcherArrayGranularity = 4;

// FORWARD DECLARATIONS

class CMsvOperation;

class MMsvSingleOpWatcher;

// CLASS DECLARATION

/**

* CMsvOperation watcher class.

*/

class CMsvSingleOpWatcher : public CActive

    {

    public:

        /**

        * Two-phased constructor.

        */

        IMPORT_C static CMsvSingleOpWatcher* NewLC( MMsvSingleOpWatcher& aObserver );

        /**

        * Two-phased constructor.

        */

        IMPORT_C static CMsvSingleOpWatcher* NewL( MMsvSingleOpWatcher& aObserver );

        /**

        * Destructor

        */

        IMPORT_C ~CMsvSingleOpWatcher();

        /**

        * Sets operation

        * Must only be called once during the lifetime of a CMsvSingleOpWatcher

        * object.

        */

        IMPORT_C void SetOperation( CMsvOperation* aOperation );

        /**

        * Returns reference to the operation

        */

        IMPORT_C CMsvOperation& Operation() const;

    private:

        /**

        * C++ constructor

        */

        CMsvSingleOpWatcher( MMsvSingleOpWatcher& aObserver );

        /**

        * Symbian OS constructor

        */

        void ConstructL();

        /**

        * From CActive

        */

        virtual void DoCancel();

        /**

        * From CActive

        */

        virtual void RunL();

    private:

        MMsvSingleOpWatcher& iObserver;

        CMsvOperation *iOperation;

    };

/**

* Mixin class MMsvSingleOpWatcher

*

* Function OpCompleted is called when operation is completed.

*/

class MMsvSingleOpWatcher

    {

    public:

        virtual void OpCompleted( CMsvSingleOpWatcher& aOpWatcher, TInt aCompletionCode ) = 0;

    };

/**

* Class CMsvSingleOpWatcherArray

*

* Use this define when we want to use an array of CMsvSingleOpWatcher objects.

*/

typedef CArrayPtrFlat<CMsvSingleOpWatcher> CMsvSingleOpWatcherArray;

#endif // __MSVSINGLEOPWATCHER_H__

// End of file