/*

* Copyright (c) 2006 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:  Dialog for showing the Terms of Use for a chat server

*                

*

*/

#ifndef CVIMPSTUITERMSOFUSEDLG_H

#define CVIMPSTUITERMSOFUSEDLG_H

#include <AknDialog.h>

#include <ItemFinder.h>

#include <eiksbobs.h>

class CEikRichTextEditor;

class CParaFormatLayer;

class CCharFormatLayer;

class CAknsBasicBackgroundControlContext;

class CAknTitlePane;

class CEikScrollBar;

/**

 *  Dialog for showing the Terms of use -text

 *

 *  @lib vimpstui.lib

 *  @since S60 3.1u

 */

NONSHARABLE_CLASS( CVIMPSTUiTermsOfUseDlg ) : public CAknDialog,

                                              public MItemFinderObserver,  

                                          public MEikScrollBarObserver

    {

    public:

        /**

         * Executes the dialog and destroys it before returning

         * @since 3.1u

         * @return EAknSoftkeyOk if user accepted.

         *         EAknSoftkeyCancel if user cancelled

         */        

        TInt RunDialogLD( TInt aResourceId );

        static CVIMPSTUiTermsOfUseDlg* NewL( );

        static CVIMPSTUiTermsOfUseDlg* NewLC( );

        virtual ~CVIMPSTUiTermsOfUseDlg();

    public: // from MObjectProvider

	    TTypeUid::Ptr MopSupplyObject(TTypeUid aId); 

  	    /*

	    *to set ToUString

	    *owner-ship transfered 

	    */

	    void SetToUMsgL(HBufC* aToUMsg);

    public: //MEikScrollBarObserver

        void HandleScrollEventL(CEikScrollBar* aScrollBar, TEikScrollEvent aEventType);     

    protected:  // from CEikDialog

        /**

        * @see CEikDialog

        */

        void PreLayoutDynInitL();

        /**

        * @see CEikDialog

        */

        void PostLayoutDynInitL();

        /**

        * @see CEikDialog

        */

        TBool OkToExitL( TInt aButtonId );

        /**

        * @see CEikDialog

        */

        void SetSizeAndPosition( const TSize& aSize );

        /**

        * @see CEikDialog

        */

		void SizeChanged();

    protected:  // From MItemFinderObserver

        /**

         * @see MItemFinderObserver

         */

        void HandleParsingComplete();

    protected:  //from base class CCoeControl

        /**

        * @see CCoeControl

        */

        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, 

                                     TEventCode aType );                                   

        /**

        * @see CCoeControl

        */

        void HandleResourceChange( TInt aType );     

    private:

        CVIMPSTUiTermsOfUseDlg();

        void ConstructL( );

    private:    // new functions

        /**

         * Inserts line to rich text object

         * @since 3.1u

         * @param aTextResourceId Resource for text in line

         * @param aBold Should text be bolded

         */

        void InsertLineL( TInt aTextResourceId, TBool aBold = EFalse );

        /**

         * Inserts line to rich text object

         * @since 3.1u

         * @param aText Text for line

         * @param aBold Should text be bolded

         */

        void InsertLineL( const TDesC& aText, TBool aBold = EFalse );

        /**

        * Search the LAF specified font for invite dialog

        * @since 3.1u

        * @return LAF specified font

        */

        const CFont* GetLayoutFont();

        /**

        * Gets the instance of the title pane

        * @return Title pane pointer

        * @since 3.1u

        */            

        CAknTitlePane* GetTitlePaneInstanceL() const;

        /**

        * Stores the old title pane text and sets a custom one

        * @since 3.1u

        */          

        void SetNewTitleTextL();

        /**

        * Retores the old title pane text

        * @since 3.1u

        */          

        void RestoreTitlePaneTextL() const;

        /**

         * Updates CBA.

         * @since S60 v3.2

         */

        void UpdateCbaL();

        /**

         * Helper method to update TOU message text color according to 

         * current skin.

         * Note! This will not update text control

         * @since S60 v3.1u

         */

        void UpdateTextColorL();

    private: // data

        // not own

        CEikRichTextEditor* iEditor;

        // own        

        CItemFinder* iItemFinder;

        // Return value of this dialog

        TInt iReturnVal;

        // Not Own. Paragraph formatter

        CParaFormatLayer* iParaFormatLayer;

        // Not Own. Character formatter

        CCharFormatLayer* iCharFormatLayer;

        // Own. For controlling the background image

        CAknsBasicBackgroundControlContext* iBgContext;

        // Own.

        HBufC* iOldTitleText;

        TInt* iRetVal; // Not own, return value of the dialog,

        HBufC* iToUText;

		// Own - stores the maximum position of the vertical scrollbar thumb

        TInt iThumbMaxPos;

    };

#endif // CVIMPSTUITERMSOFUSEDLG_H