/*

* 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:  CCFNotOperation class implementation.

*

*/

// INCLUDES

#include "cfnotoperation.h"

#include "cfbasicoptrace.h"

#include <gmxmlnode.h>

// CONSTANTS

_LIT( KScriptNotName, "not" );

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

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

// CCFNotOperation::CCFNotOperation

// C++ default constructor can NOT contain any code, that might leave.

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

//

CCFNotOperation::CCFNotOperation( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    : CCFOperationNode( aServices, aParent )

    {

    FUNC_LOG;

    }

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

// CCFNotOperation::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CCFNotOperation::ConstructL()

    {

    FUNC_LOG;

    }

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

// CCFNotOperation::NewL

// Two-phased constructor.

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

//

CCFNotOperation* CCFNotOperation::NewL( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    {

    FUNC_LOG;

    CCFNotOperation* self = NewLC( aServices, aParent );

    CleanupStack::Pop( self );

    return self;

    }

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

// CCFNotOperation::NewLC

// Two-phased constructor.

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

//

CCFNotOperation* CCFNotOperation::NewLC( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    {

    FUNC_LOG;

    CCFNotOperation* self = new( ELeave ) CCFNotOperation( aServices, aParent );

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CCFNotOperation::ParseL

// Construction with parsing from a DOM node.

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

//

CCFNotOperation* CCFNotOperation::ParseL( MCFOperationServices& aServices,

    CCFOperationNode* aParent,

    CMDXMLNode& aNode )

    {

    FUNC_LOG;

    if ( aNode.NodeName().CompareF( KScriptNotName ) != 0 )

        {

        return NULL; // Cannot create and operation from the given node.

        }

    CCFNotOperation* self = NewLC( aServices, aParent );    // CLEANUP<< self

    TBool unsupportedNode( EFalse );

    CMDXMLNode* child = aNode.FirstChild();

    while ( child )

        {

        if ( child->NodeType() == CMDXMLNode::EElementNode )

            {

            if ( self->iChild )

                {

                TPtrC nodeName( child->NodeName() );

                INFO_1( "CCFNotOperation::ParseL - One child operation is allowed. [%S] is not supported",

                        &nodeName );

                unsupportedNode = ETrue;

                break;

                }

            CCFOperationNode* op = self->iServices.ParseL( self, *child );

            if ( op )

                {

                self->iChild = op;

                }

            else

                {

                unsupportedNode = ETrue;

                break;

                }

            }

        else if ( child->NodeType() != CMDXMLNode::ECommentNode )

            {

            unsupportedNode = ETrue;

            break;

            }

        child = child->NextSibling();

        }

    CleanupStack::Pop( self );                              // CLEANUP<< self

    if ( unsupportedNode || !self->iChild )

        {

        delete self; // Discard unsupported not operation.

        self = NULL;

        if ( unsupportedNode )

            {

            TPtrC nodeName( child->NodeName() );

            INFO_1( "CCFNotOperation::ParseL - Unsupported node [%S]",

                    &nodeName );

            }

        else

            {

            INFO( "CCFNotOperation::ParseL - No child defined" );

            }

        }

    CREATE_DOM_INFO( self, aNode );

    return self;

    }

// Destructor

CCFNotOperation::~CCFNotOperation()

    {

    FUNC_LOG;

    delete iChild;

    }

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

// CCFNotOperation::ActivateL

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

//

void CCFNotOperation::ActivateL()

    {

    FUNC_LOG;

    if ( iChild )

        {

        iChild->ActivateL();

        }

    }

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

// CCFNotOperation::Deactivate

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

//

void CCFNotOperation::Deactivate()

    {

    FUNC_LOG;

    if ( iChild )

        {

        iChild->Deactivate();

        }

    }

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

// CCFNotOperation::CheckSecurity

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

//

TInt CCFNotOperation::CheckSecurity()

    {

    FUNC_LOG;

    TInt err( KErrNone );

    // Check security for context subscriptions.

    if ( iChild )

        {

        err = iChild->CheckSecurity();

        }

    return err;

    }

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

// CCFNotOperation::Evaluate

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

//

void CCFNotOperation::Evaluate()

    {

    FUNC_LOG;

    DOM_INFO( "CCFNotOperation::Evaluate" );

    TCFConditionValue newValue( Value() );

    if ( iChild )

        {

        newValue = iChild->Value();

        }

    if ( newValue == ECFConditionUndefined )

        {

        // Do nothing, not undefined = undefined.

        }

    else

        {

        newValue = ( TCFConditionValue )( !newValue );

        }

    if ( newValue != Value() )

        {

        INFO_1( "CCFNotOperation::Evaluate - Value changed to (-1=undefined, 0=false, 1=true): %d", newValue );

        iValue = newValue;

        if ( iParent )

            {

            iParent->Evaluate();

            }

        }

    else

        {

        INFO_1( "CCFNotOperation::Evaluate - Value still (-1=undefined, 0=false, 1=true): %d", newValue );

        }

    }

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

// CCFNotOperation::Cleanup

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

//

void CCFNotOperation::Cleanup()

    {

    FUNC_LOG;

    if ( iChild )

        {

        iChild->Cleanup();

        }

    }