/*

* Copyright (c) 2005 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:  Manipulates the priority of a Player.

*

*/

#ifndef CAMMSPRIORITYCONTROL_H

#define CAMMSPRIORITYCONTROL_H

//  INCLUDES

#include "cammscontrol.h"

#include <mmmaplayerstatelistener.h>

// CONSTANTS

_LIT(KAMMSPriorityControl, "PriorityControl");

// CLASS DECLARATION

/**

*

*  Controls for the priority.

*  This class delegates priority setting calls to RMMFController.

*

*

*  @since 3.0

*/

NONSHARABLE_CLASS(CAMMSPriorityControl)

        : public CAMMSControl, public MMMAPlayerStateListener

{

public:  // Constructors and destructor

    /**

    * Two-phased constructor.

    * @param aPlayer Player that has this control.

    */

    static CAMMSPriorityControl* NewLC(CMMAPlayer* aPlayer);

    /**

    * Destructor.

    */

    ~CAMMSPriorityControl();

public: // New functions

    /**

    * Sets the priority.

    *

    * @param aPriority The new priority to be set.

    */

    void SetPriorityL(TInt aPriority);

    /**

    * Gets the priority.

    *

    * @return The set priority.

    */

    TInt Priority();

public:  // From MMMAPlayerStateListener

    void StateChanged(TInt aState);

public: // Functions from base classes

    const TDesC& ClassName() const;

protected:  // New functions

    /**

     * Scales the given AMMS priority to MMF priority

     * and sets it to MMF if the priority has changed.

     * @param aAmmsPriority AMMS priority to be set.

     */

    void SetPriorityToMmfL(TInt aAmmsPriority);

private:

    /**

    * C++ constructor.

    * @param aPlayer Player that has this control.

    */

    CAMMSPriorityControl(CMMAPlayer* aPlayer);

    /**

     * Symbian 2nd phase constructor.

     */

    void ConstructL();

private:  // data

    // Priority cannot be set if player is REALIZED. The priority is set

    // when the player is prefetched.

    TInt iVisiblePriority;  // Priority visible in AMMS.

    TInt iActualPriority;   // Priority set in MMF.

};

#endif // CAMMSPRIORITYCONTROL_H