// Copyright (c) 2006-2009 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:

// GFXTRANSEFFECT.CPP

// 

//

#include "PolicyHandler.h"

#include "GfxTransUtils.h"

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

// construct/destruct  

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

CPolicyHandler::CPolicyHandler() 

	{

	}

CPolicyHandler::~CPolicyHandler() 

	{

	iPolicies.ResetAndDestroy();

	iPolicies.Close();

	}

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

// get/set policies 

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

TPolicy CPolicyHandler::GetPolicy(TUid aUid, TUint aAction) 

	{

	TInt cpIdx = FindControlPolicy(aUid);

	if(IsValidIndex(cpIdx))

		{

		TInt apIdx = FindActionPolicy(iPolicies[cpIdx], aAction);

		if(IsValidIndex(apIdx))

			{

			return iPolicies[cpIdx]->iActions[apIdx].iPolicy;

			}

		}

	return ENotSupported;

	}

void CPolicyHandler::UpdatePolicy(TUid aUid, TUint aAction, TPolicy aPolicy) 

	{

	TInt const cpIdx = FindControlPolicy(aUid);

	if(IsValidIndex(cpIdx))

		{

		CControlPolicy *policy = iPolicies[cpIdx];

		TInt apIdx = FindActionPolicy(policy, aAction);

		if(IsValidIndex(apIdx))

			{

			if(aPolicy == ENotSupported)

				{ //remove current existing policy

				policy->iActions.Remove(apIdx);

				if(policy->iActions.Count() == 0)

					{

					iPolicies.Remove(cpIdx);

					delete policy;

					}

				}

			else 

				{

				//change the policy

				policy->iActions[apIdx].iPolicy = aPolicy;

				}

			return;

			}

		if(aPolicy == ENotSupported)

			{

			//already not existing so do nothing

			return;

			}

		else 

			{

			//create the action policy

			TActionPolicy actionPolicy;

			actionPolicy.iAction = aAction;

			actionPolicy.iPolicy = aPolicy;

			policy->iActions.Append(actionPolicy); //nothing to do if we fail

			return;

			}

		}

	if(aPolicy == ENotSupported)

		{

		//already not existing so do nothing

		return;

		}

	else 

		{

		//Create the policy

		CControlPolicy* policy = new CControlPolicy();

		if(!policy)

			return; //nothing to do if we fail

		policy->iUid = aUid;

		TActionPolicy actionPolicy;

		actionPolicy.iAction = aAction;

		actionPolicy.iPolicy = aPolicy;

		if(KErrNone != policy->iActions.Append(actionPolicy))

			{

			delete policy;

			return;

			}

		if(KErrNone != iPolicies.Append(policy))

			{

			delete policy;

			return; //nothing to do if we fail

			}

		}

	}

void CPolicyHandler::SetTransitionPolicies(TControlPolicy* aPolicies, TInt aNum)

	{

	iPolicies.ResetAndDestroy();

	for(TInt i = 0;i < aNum; i++)

		{

		UpdatePolicy(aPolicies[i].iId, aPolicies[i].iAction, aPolicies[i].iPolicy);

		}

	delete aPolicies;

	}

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

// find functions  

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

TInt CPolicyHandler::FindControlPolicy(TUid aUid)

	{

	TInt count = iPolicies.Count();

	for(TInt i = 0; i < count; i++)

		{

		if(iPolicies[i]->iUid == aUid)

			{

			return i;

			}

		}

	return KErrNotFound;

	}

TInt CPolicyHandler::FindActionPolicy(CControlPolicy* aControlPolicy, TUint aAction)

	{

	TInt count = aControlPolicy->iActions.Count();

	for(TInt i = 0; i < count; i++)

		{

		if(aControlPolicy->iActions[i].iAction == aAction)

			{

			return i;

			}

		}

	return KErrNotFound;

	}