/*******************************************************************************

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

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     Nokia Corporation - S60 implementation

 *******************************************************************************/

#ifndef SWTFLIPWATCH_H

#define SWTFLIPWATCH_H

#include <e32base.h>

#include <e32property.h>

/**

 * MSwtFlipWatchTimerHandler

 */

class MSwtFlipWatchTimerHandler

{

public:

    virtual void HandleTimeoutL() = 0;

};

/**

 * CSwtFlipWatchTimer

 * Timer used by the flip watch.

 * @lib eswt

 */

NONSHARABLE_CLASS(CSwtFlipWatchTimer)

        : public CActive

{

// Own methods

public:

    static CSwtFlipWatchTimer* NewL(MSwtFlipWatchTimerHandler* aHandler);

    virtual ~CSwtFlipWatchTimer();

    void SetTimer(TTimeIntervalMicroSeconds32 aDelay);

private:

    CSwtFlipWatchTimer(MSwtFlipWatchTimerHandler* aHandler);

    void ConstructL();

    void RunL();

    void DoCancel();

// Data

private:

    RTimer iTimer;

    MSwtFlipWatchTimerHandler* iHandler;

};

/**

 * MSwtFlipObserver

 */

class MSwtFlipObserver

{

public:

    /**

     * Flip being changed. In the case of several quick swaps of the flip

     * this notification will be sent continuosly.

     */

    virtual void FlipChangingL() = 0;

    /**

     * End of flip change. In the case of several quick swaps of the flip

     * this notification will be sent once after the quick swap stops.

     */

    virtual void FlipChangedL(TBool aState) = 0;

};

/**

 * CSwtFlipWatchTimer

 * Flip watch. Observers and reports changes in the flip status.

 * @lib eswt

 */

NONSHARABLE_CLASS(CSwtFlipWatch)

        : public CActive

        , public MSwtFlipWatchTimerHandler

{

// Own methods

public:

    static CSwtFlipWatch* NewL(MSwtFlipObserver* aObserver);

    virtual ~CSwtFlipWatch();

private:

    CSwtFlipWatch(MSwtFlipObserver* aObserver);

    void ConstructL();

    void DoCancel();

    void RunL();

// From MSwtFlipWatchTimerHandler

public:

    void HandleTimeoutL();

// Data

private:

    RProperty iProperty;

    MSwtFlipObserver* iObserver;

    CSwtFlipWatchTimer* iTimer;

    TBool iFlipOpen;

};

#endif // SWTFLIPWATCH_H