/*

* Copyright (c) 2006 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:  

*

*/

#include "contentprioritymap.h"

using namespace AiUtility;

// ======== MEMBER FUNCTIONS ========

CContentPriorityMap::CContentPriorityMap()

    {

    }

EXPORT_C CContentPriorityMap* CContentPriorityMap::NewL()

    {

    CContentPriorityMap* self = new( ELeave ) CContentPriorityMap;

    return self;

    }

CContentPriorityMap::~CContentPriorityMap()

    {

    iPriorityMap.ResetAndDestroy();

    }

EXPORT_C TInt CContentPriorityMap::CurrentPriority( const TDesC8& aUiElementId ) const

    {

    // Find current priority value for aUiElementId

    const TInt* currentPriority = iPriorityMap.Find( aUiElementId );

    // Return current priority value or KErrNotFound if it has not been set

    return currentPriority ? *currentPriority : KErrNotFound;

    }

EXPORT_C TInt CContentPriorityMap::SetCurrentPriority( const TDesC8& aUiElementId,

                                                       TInt aPriority )

    {

    TInt error = KErrNone;

    TInt* currentPriority = iPriorityMap.Find( aUiElementId );

    if ( currentPriority )

        {

        // Update old value

        *currentPriority = aPriority;

        }

    else

        {

        // Insert new <key,value> pair

        TRAP( error,

            {

            HBufC8* key = aUiElementId.AllocLC();

            TInt* value = new( ELeave ) TInt( aPriority );

            CleanupStack::PushL( value );

            iPriorityMap.InsertL( key, value );

            CleanupStack::Pop( 2, key );

            } );

        }

    return error;

    }

EXPORT_C void CContentPriorityMap::ClearPriority( const TDesC8& aUiElementId )

    {

    TInt* currentPriority = iPriorityMap.Find( aUiElementId );

    if ( currentPriority )

        {

        // Clear old value. Use KErrNotFound to avoid future reallocations of

        // the same key.

        *currentPriority = KErrNotFound;

        }

    }

EXPORT_C void CContentPriorityMap::Reset()

    {

    iPriorityMap.ResetAndDestroy();

    }

EXPORT_C TBool CContentPriorityMap::OverrideContent( const TDesC8& aUiElementId,

                                                     TInt aNewPriority ) const

    {

    return ( aNewPriority >= CurrentPriority( aUiElementId ) );

    }