// Copyright (c) 2001-2009 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:

//

#ifndef __CHTMLTOCRTCONVACTIONPROCESSOR_H__

#define __CHTMLTOCRTCONVACTIONPROCESSOR_H__

#include <e32std.h>

#include <e32base.h>

#include <f32file.h>

#include <txtrich.h> 

#include <txtfrmat.h>

#define KDefaultTextColor KRgbBlack

#include "CHtmlToCrtConvParser.h"

#include "MHtmlToCrtConvResourceFile.h"

enum THtmlToCrtConvTagType;

enum THtmlToCrtConvAttributeType;

class CHtmlToCrtConvActionProcessor : public CBase

	{

	enum TParserFlags

		{

		ENull = 0x00,

		EAlignAttribPending = 0x01,

		EBlockquotePending = 0x02,

		EListPending = 0x04,

		EIgnoreText = 0x08,

		ESeenAltAttribute = 0x10

		};

	public:

		static CHtmlToCrtConvActionProcessor* NewL(CRichText& aRichText, MHtmlToCrtConvResourceFile& aResourceFile);

		~CHtmlToCrtConvActionProcessor();

		void DoTagActionL(THtmlToCrtConvTagType aTagType, CHtmlToCrtConvParser::TTagState aTagState);

		void DoAttributeActionL(THtmlToCrtConvTagType aTagType, CHtmlToCrtConvParser::TTagState aTagState, const THtmlToCrtConvAttributeType& aType, const TDesC8& aValue, TBool& aImgTagResourceReqd);

	/**

		@fn				void DoWriteTextL(const TDesC16& aText)

		Intended Usage	: inserts text at the end of the CRichText object

		@param			aText The text to be inserted

		@return			void

	 */

		void DoWriteTextL(const TDesC16& aText);

		void InsertImgTagResourceL();

	private:

		CHtmlToCrtConvActionProcessor(CRichText& aRichText, MHtmlToCrtConvResourceFile& aResourceFile);

		void ConstructL();

		void TrimBufferL(TPtr& aPtr);

	/**

		@fn				void DoBlockLevelTagActionL()

		Intended Usage	: inserts a paragraph delimiter and applies alignment to the CRichText object.

						  Should be called for each block level HTML tag

		@return			void

	 */

		void DoBlockLevelTagActionL();

		void ApplyAlignmentL();

		void InsertParagraphDelimiterL();

		void SetFontStrokeWeightL(TFontStrokeWeight aStrokeWeight);

		void SetFontPostureL(TFontPosture aFontPosture);

		void SetFontUnderlineL(TFontUnderline aFontUnderline);

		void SetFontPrintPositionL(TFontPrintPosition aFontPrintPosition);

		void SetFontStrikethroughL(TFontStrikethrough aFontStrikethrough);

		void SetFontTextColorL(const TRgb& aFontTextColor);

		void SetFontSizeL(TInt aFontSizeInTwips);

//

//tags

//

	/**

		@fn				void DoHeaderL(CHtmlToCrtConvParser::TTagState aTagState, TInt aFontSizeInTwips)

		Intended Usage	: sets font stroke weight and font size in the CRichText object

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@param			aFontSizeInTwips  the font size in twips

		@return			void

	 */

		void DoHeaderL(CHtmlToCrtConvParser::TTagState aTagState, TInt aFontSizeInTwips);	

		void DoCenterL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoBlockquoteL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoFormL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: updates the flag EIgnoreText

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoFormL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoUnorderedListL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: applies bulleted list formatting to the CRichText object

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoUnorderedListL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoParagraphL();

		void DoTableL();

		void DoDivisionL();

		void DoPreformattedL();

		void DoHorizontalRuleL();

		void DoItalicL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoBoldL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoUnderlineL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoSubscriptL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoSuperscriptL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoStrikethroughL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoBreakL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoTitleL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: renders title text as a header (H1) and inserts a paragraph delimiter

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoTitleL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoCaptionL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: inserts a paragraph delimiter at the end of the CRichText object

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoCaptionL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoTableDataL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: inserts a paragraph delimiter at the end of the CRichText object

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoTableDataL(CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoListItemL(CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: updates the flag EListPending

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoListItemL(CHtmlToCrtConvParser::TTagState aTagState);

		void DoHtmlL(CHtmlToCrtConvParser::TTagState aTagState);

		//attributes

		void DoAlignL(const TDesC8& aValue, CHtmlToCrtConvParser::TTagState aTagState);

	/**

		@fn				void DoShowUrlL(const TDesC8& aValue, CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: inserts " ( aValue )" at the end of the CRichText object

		@param			aValue     the value of the Href or Src HTML tag attribute

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@return			void

	 */

		void DoShowUrlL(const TDesC8& aValue, CHtmlToCrtConvParser::TTagState aTagState, THtmlToCrtConvTagType aTagType);

	/**

		@fn				void DoAltL(const TDesC8& aValue, CHtmlToCrtConvParser::TTagState aTagState)

		Intended Usage	: inserts "<aValue>" at the end of the CRichText object

		@param			aValue     the value of the Alt HTML tag attribute

		@param			aTagState  whether the HTML tag is an opening or closing tag

		@param			aTagType  the type of HTML tag

		@return			void

	 */

		void DoAltL(const TDesC8& aValue, CHtmlToCrtConvParser::TTagState aTagState);

		//flags

		inline void SetFlag (TParserFlags aFlag);

		inline TBool IsFlagSet (TParserFlags aFlag) const;

		inline void ClearFlag (TParserFlags aFlag);

	private:

		CRichText& iText;//reference to rich text object owned by converter

		TInt iTextPosition;

		TInt iAlignmentStartPosition;

		TInt iBlockquoteStartPosition;

		TInt iListStartPosition;

		TUint iFlags;

		TCharFormatMask iCharFormatMask;

		TCharFormat iCharFormat;

		TParaFormatMask iParaFormatMask;

		CParaFormat* iParaFormat;

		MHtmlToCrtConvResourceFile& iResourceFile;

	};

void CHtmlToCrtConvActionProcessor::SetFlag (TParserFlags aFlag)

	{

	iFlags |= aFlag;

	}

TBool CHtmlToCrtConvActionProcessor::IsFlagSet (TParserFlags aFlag) const

	{

	return (iFlags & aFlag);

	}

void CHtmlToCrtConvActionProcessor::ClearFlag (TParserFlags aFlag)

	{

	iFlags &= ~aFlag;

	}

#endif