/*

* 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

*

*/

// Class Header

#include "mulcoverflowao.h"

// Alf Headers

#include <math.h>

// Local Header

#include "mulcoverflowcontrol.h"

#include "mulbaseelement.h"

#include "mullog.h"

namespace Alf

	{

// ---------------------------------------------------------------------------

// MulCoverFlowAo

// ---------------------------------------------------------------------------

//

MulCoverFlowAo::MulCoverFlowAo( MulCoverFlowControl& aControl ) : CTimer( EPriorityNormal ), mControl(aControl)							     								

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::MulCoverFlowAo"); 

	ConstructL();

	CActiveScheduler::Add(this);

	}

// ---------------------------------------------------------------------------

// ~MulCoverFlowAo

// ---------------------------------------------------------------------------

//

MulCoverFlowAo::~MulCoverFlowAo()

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::~MulCoverFlowAo"); 

	StopTimer();	

	}

// ---------------------------------------------------------------------------

// StartMoving

// ---------------------------------------------------------------------------

//     

void MulCoverFlowAo::StartMoving(TReal32 aSpeedPoint, int aCurrGestureDirection,bool aFastScrollForKey,int aAnimationTime)

    {

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::StartMoving"); 

	int previosDir = mCurrGestureDirection;

	mCurrGestureDirection = aCurrGestureDirection;

	aSpeedPoint = aSpeedPoint < 0 ? aSpeedPoint * -1 : aSpeedPoint;

	// Fast scroll in key event ,

	// Three steps are there Max(100),150,200(Min).	

	if (aFastScrollForKey)

		{

		mTransitionTime = aAnimationTime;	

		}

	else

		{

		mTransitionTime = 200 *(1 + (1 - aSpeedPoint)*5);		

		}

	if( !mStarted )

		{

		// Cancle any pending requests and start a new request

	    // this is because the layout direction n speed should be changed according to the current swipe

	    if( IsActive() )

	    	{

	    	MUL_LOG_INFO("MUL::MulCF::Cancel Previous Animation ");

	    	Cancel();

	    	}

	    MUL_LOG_INFO("MUL::MulCF::Start New Animation ");

	    mStarted = true;

		After(0);	

		}

	else

		{

		if (previosDir != mCurrGestureDirection)

			{

			mTransitionTime = 200;

			Cancel();

			After(0);	

			}

		else

			{

			}

		}

    }

// ---------------------------------------------------------------------------

// StopMoving

// ---------------------------------------------------------------------------

//  

void MulCoverFlowAo::StopMoving()

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::StopMoving"); 	

	StopTimer();

	mCurrGestureDirection = 0;

	mTransitionTime = 0;

	mWaitingTime = 0;

	mStarted = false;

	}

// ---------------------------------------------------------------------------

// StopTimer

// ---------------------------------------------------------------------------

// 

void MulCoverFlowAo::StopTimer()

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::StopTimer"); 	

	if( IsActive() )

    	{

    	Cancel();

    	}

	}

// ---------------------------------------------------------------------------

// RunL

// ---------------------------------------------------------------------------

// 	

void MulCoverFlowAo::RunL()

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::RunL");	

	// Check if the layout ahs moved by one complete visaul. 

	// Then change the highlight and again start moving the layout.

	// If it hasnot moved by complete visaul then allow the layout to move to new position but

	// dont change the highlight

	ChangeHighLight();	

	After(fabs(mTransitionTime*600));

	}

// ---------------------------------------------------------------------------

// ChangeHighLight

// ---------------------------------------------------------------------------

// 	

void MulCoverFlowAo::ChangeHighLight()

	{

	MUL_LOG_ENTRY_EXIT("aakash::MulCoverFlowAo::ChangeHighLight"); 	

	// Inform widget/model that highlight has changed	

	if(mCurrGestureDirection > 0 )

		{

		mControl.HandleNavigationEvent ( EEventScrollLeft );	

		}

	else if(mCurrGestureDirection < 0 )

		{

		mControl.HandleNavigationEvent ( EEventScrollRight );

		}

	else

		{

		// no need to change the highlight	

		}

	}

// ---------------------------------------------------------------------------

// FastScrollTransitionTime

// ---------------------------------------------------------------------------

// 	

int MulCoverFlowAo::FastScrollTransitionTime()

	{	

	return mTransitionTime;

	}

	} // End of namespace .

//End of file