/*

* Copyright (c) 2007-2008 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:  Active Object header for CoverFlow

*

*/

#ifndef __MULCOVERFLOWAO_H__

#define __MULCOVERFLOWAO_H__

#include <e32base.h>    // For CTimer

namespace Alf

	{

//Forward declarations

class MulCoverFlowControl;

class MulCoverFlowAo:public CTimer

	{

public : // Constructor and Destructor

    /// @bug critical:avanhata:7/7/2008 this is a symbian-dependent class, 

    /// need to have two-phase construction

    /// - otherwise mixing leaves and throws

	MulCoverFlowAo( MulCoverFlowControl& aControl );

	~MulCoverFlowAo();

public: //new method

    /**

     * Keeps moving layout asynchronously until it stopmoving() is called .

     * The layout will move on to show more items .

     * 

     * @param aSpeedPoint Gesture speed point.

     * @param, aCurrGestureDirection, Current direction of gesture

     * @param, aFastScrollForKey , if fast scroll due to key event

     * @param, aAnimationTime , animation time for fast scroll in key event.

     */

	void StartMoving(TReal32 aSpeedPoint, int aCurrGestureDirection,bool aFastScrollForKey = false,int aAnimationTime = 0);

	/**

	 *  Stop moving the layout.

	 *

	 */

	void StopMoving();

	/**

	 * Transition time for highlight change in fast scroll

	 *

	 * @return, transition time to be used

	 */	

	int FastScrollTransitionTime();		

private: 

	/**

	 * Timer call back funtion . Performs animations and moves the layout 

	 * for a particular distance depending on the length of the swipe

	 * in a particular time period depending on the speed .

	 */

	void RunL();

private : //new methods

	/**

	 * Cancel all pending requests.

	 */ 

	void StopTimer();

	/**

	 *  Increment the highlight with +-1 depending on the swipe direction and informs the 

	 *  control class to cahnge teh highlight.

	 */	

	void ChangeHighLight();

private: //data

	MulCoverFlowControl& mControl; //doesnt own

	int mTransitionTime;

	int mWaitingTime;

	int mCurrGestureDirection;

	bool mStarted;

	}; //end of class.

	} // End of namespace .

#endif  //__MULCOVERFLOWAO_H__

// End of file