/*

* Copyright (c) 2008-2008 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:  CCFCountOneShot class declaration.

*

*/

#ifndef C_CFCOUNTONESHOT_H

#define C_CFCOUNTONESHOT_H

// INCLUDES

#include "cfcount.h"

// FORWARD DECLARATIONS

class CCFContextObject;

// CLASS DECLARATION

/**

*  This class implements count oneShotAt -operation on Context Framework

*  Scripts.

*

*  @lib CFScriptEngine

*  @since S60 v5.0

*/

NONSHARABLE_CLASS( CCFCountOneShot ) : public CCFCount

    {

public: // Constructors and destructor

    /**

    * Creates a CCFCountOneShot object.

    * @param aServices is the operation services interface for nodes.

    * @param aParent is parent node for this node.

    * @param aName is name of the context object this operation operates on.

    * @param aSource is the source of the context object this operation

    *   operates on.

    * @param aType is the interpretation of aCmpVal.

    * @param aCmpVal is a string representation of the comparison value.

    * @param aCount is the count required for this operation to get true.

    * @param aCountType is the type of the count.

    * @return a pointer to the created instance of CCFCountOneShot.

    */

    static CCFCountOneShot* NewL( MCFOperationServices& aServices,

            CCFOperationNode* aParent,

            TDesC& aName,

            TDesC& aSource,

            const CCFContextOperation::TCmpType aType,

            const TDesC& aCmpVal,

            const TUint aCount,

            const TCountType aCountType );

    /**

    * Creates a CCFCountOneShot object.

    * @param aServices is the operation services interface for nodes.

    * @param aParent is parent node for this node.

    * @param aName is name of the context object this operation operates on.

    * @param aSource is the source of the context object this operation

    *   operates on.

    * @param aType is the interpretation of aCmpVal.

    * @param aCmpVal is a string representation of the comparison value.

    * @param aCount is the count required for this operation to get true.

    * @param aCountType is the type of the count.

    * @return a pointer to the created instance of CCFCountOneShot.

    */

    static CCFCountOneShot* NewLC( MCFOperationServices& aServices,

            CCFOperationNode* aParent,

            TDesC& aName,

            TDesC& aSource,

            const CCFContextOperation::TCmpType aType,

            const TDesC& aCmpVal,

            const TUint aCount,

            const TCountType aCountType );

    /**

    * Creates and parses a CCFCountOneShot instance from an xml node.

    * @param aServices is the operation services interface for nodes.

    * @param aParent is the parent of this node or NULL if this is a root.

    *   The ownership of the parent is not transferred.

    * @param aNode is the node to be parsed.

    * @return a pointer to the created instance of CCFCountOneShot, or NULL if

    *   the node is not this count node. May leave with any system wide error

    *   code.

    */

    static CCFCountOneShot* ParseL( MCFOperationServices& aServices,

            CCFOperationNode* aParent,

            CMDXMLNode& aNode );

    /**

    * Destructor.

    */

    ~CCFCountOneShot();

protected: // From CCFContextOperation

    /**

    * Returns ETrue if this operation is true.

    */

    TBool IsTrueL( const CCFContextObject& aContext );

private:

    /**

    * C++ default constructor.

    */

    CCFCountOneShot( MCFOperationServices& aServices,

            CCFOperationNode* aParent,

            HBufC* aName,

            HBufC* aSource,

            const CCFContextOperation::TCmpType aType,

            const TUint aCount,

            const TCountType aCountType );

    /**

    * By default Symbian 2nd phase constructor is private.

    */

    void ConstructL( const TDesC& aCmpVal );

private: // New functions

    /**

    * Stops further operation execution.

    */

    void Finished();

private: // Data

    };

#endif // C_CFCOUNTONESHOT_H