/*

* Copyright (c) 2002-2008 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:  CCFElseClause class implementation.

*

*/

// INCLUDE FILES

#include "cfelseclause.h"

#include "cfscriptaction.h"

#include "cfbasicoptrace.h"

#include <gmxmlnode.h>

// CONSTANTS

_LIT( KScriptElseName16,    "else"      );

_LIT( KScriptActionsName16, "actions"   );

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

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

// CCFElseClause::CCFElseClause

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

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

//

CCFElseClause::CCFElseClause( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    :   CCFClauseNode( aServices, aParent )

    {

    FUNC_LOG;

    iValue = ECFConditionTrue; // Else clause is always true.

    }

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

// CCFElseClause::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CCFElseClause::ConstructL()

    {

    FUNC_LOG;

    }

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

// CCFElseClause::NewL

// Two-phased constructor.

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

//

CCFElseClause* CCFElseClause::NewL( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    {

    FUNC_LOG;

    CCFElseClause* self = NewLC( aServices, aParent );

    CleanupStack::Pop( self );

    return self;

    }

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

// CCFElseClause::NewLC

// Two-phased constructor.

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

//

CCFElseClause* CCFElseClause::NewLC( MCFOperationServices& aServices,

    CCFOperationNode* aParent )

    {

    FUNC_LOG;

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

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CCFElseClause::ParseL

// Construction with parsing from a DOM node.

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

//

CCFElseClause* CCFElseClause::ParseL( MCFOperationServices& aServices,

    CCFOperationNode* aParent,

    CMDXMLNode& aNode )

    {

    FUNC_LOG;

    if ( aNode.NodeName().CompareF( KScriptElseName16 ) != 0 )

        {

        return NULL; // Cannot create else clause from the given node.

        }

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

    // Parse children.

    TBool unsupportedNode( EFalse );

    TBool actionsParsed( EFalse );

    CMDXMLNode* child = aNode.FirstChild();

    while ( child )

        {

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

            {

            if ( child->NodeName().CompareF( KScriptActionsName16 ) == 0 )

                {

                if ( actionsParsed )

                    {

                    INFO( "CCFElseClause::ParseL - Redefinition not allowed, actions already parsed" );

                    unsupportedNode = ETrue;

                    break;

                    }

                self->ParseActionsL( *child, self->iActions );

                actionsParsed = ETrue;

                }

            else

                {

                TPtrC nodeName( child->NodeName() );

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

                        &nodeName );

                unsupportedNode = ETrue; // Unsupported node.

                break;

                }

            }

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

            {

            TPtrC nodeName( child->NodeName() );

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

                    &nodeName );

            unsupportedNode = ETrue;

            break;

            }

        child = child->NextSibling();

        }

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

    if ( unsupportedNode )

        {

        delete self; // Discard unsupported else clause.

        self = NULL;

        }

    CREATE_DOM_INFO( self, aNode );

    return self;

    }

// Destructor

CCFElseClause::~CCFElseClause()

    {

    iActions.ResetAndDestroy();

    }

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

// CCFElseClause::FireActionsL

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

//

void CCFElseClause::FireActionsL()

    {

    FUNC_LOG;

    ACTION_INFO_2( "Firing [%d] ELSE-actions for script ID=[%d]",

            iActions.Count(),

            iServices.ScriptId() );

    for ( TInt i = 0; i < iActions.Count(); ++i )

        {

        iActions[ i ]->ActL();

        }

    }

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

// CCFElseClause::ActivateL

// Else clause can have only actions, nothing must be done.

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

//

void CCFElseClause::ActivateL()

    {

    FUNC_LOG;

    }

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

// CCFElseClause::Deactivate

// Else clause can have only actions, nothing must be done.

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

//

void CCFElseClause::Deactivate()

    {

    FUNC_LOG;

    }

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

// CCFElseClause::CheckSecurity

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

//

TInt CCFElseClause::CheckSecurity()

    {

    FUNC_LOG;

    // Check security for actions.

    for ( TInt i = 0; i < iActions.Count(); ++i )

        {

        TSecurityPolicy securityPolicy;

        TInt err = iActions[ i ]->GetSecurityPolicy( securityPolicy );

        if ( err != KErrNone )

            {

            ERROR( err, "CCFElseClause::CheckSecurity - Getting action security policy failed!" );

            return err;

            }

        err = iServices.CheckScriptOwnerAccess( securityPolicy );

        if ( err != KErrNone )

            {

            ERROR( err, "CCFElseClause::CheckSecurity - Checking action security policy failed!" );

            return err;

            }

        }

    return KErrNone;

    }

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

// CCFElseClause::Evaluate

// Should never get called.

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

//

void CCFElseClause::Evaluate()

    {

    FUNC_LOG;

    DOM_INFO( "CCFElseClause::Evaluate (ALWAYS TRUE)" );

    iValue = ECFConditionTrue; // Else clause is always true.

    }