/*

* Copyright (c) 2002 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:  Declarations of text recognizer class.

*

*/

#ifndef TXTRECOG_H

#define TXTRECOG_H

// INCLUDES

#include <apmrec.h>

// CLASS DECLARATION

/**

*  Series 60 "text/plain" recognizer.

*  Mime recognizer for "text/plain".

*  

*/

const TInt KTxtRecognizerImplementationUid = 0x100059ab;

class CKthreeTextRecognizer : public CApaDataRecognizerType

    {

    public: // Constructor

        /**

        * Constructor.

        */

        CKthreeTextRecognizer();

		~CKthreeTextRecognizer();

		static CKthreeTextRecognizer* NewL( );

    public:  // Functions from base classes

        /**

        * From CApaDataRecognizerType.

        * Preferred byte size of sample content.

        */

        TUint PreferredBufSize();

        /**

        * From CApaDataRecognizerType.

        * Return mime type which this class supports to recognize.

        *

        * @param aIndex index.

        * @return always text/plain.

        */

        TDataType SupportedDataTypeL(TInt aIndex) const;

        /**

        ** From CApaDataRecognizerType.

        */

    	static CApaDataRecognizerType* CreateRecognizerL();

    private:  // Functions from base classes

        /*

        // Two phase contructor

        //

        */

        void ConstructL();

        /**

        * From CApaDataRecognizerType.

        * This is a main part of recognization.

        *

        * @param aName file name.

        * @param aBuffer sample content.

        */

        void DoRecognizeL(const TDesC& aName, const TDesC8& aBuffer);

    private: // New function

        /**

        * Check whether a byte is unlikely to be used in text file.

        *

        * @param aByte a byte to check.

        * @return ETrue if aByte is invalid as a text character.

        */

        static TBool IsInvalidChar( const TUint8& aByte);

		TBool IsInBlackListL(TPtrC aExt);

    private:    // Data

		TInt			iResOffset;

		RPointerArray<HBufC> iResListData;

    };

#endif // TXTRECOG_H

// End of File