/*

* 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:  Declaration of Notepad Viewer Dialog class.

*

*/

#ifndef NPDVIEWERDIALOG_H

#define NPDVIEWERDIALOG_H

// INCLUDES

#include <charconv.h>

#include <centralrepository.h>

#include <cenrepnotifyhandler.h>

#include <itemfinderobserver.h>

#include "NpdDialogBase.h"

#include "NpdLoadFileAO.h"

// FORWARD DECLARATIONS

class CNotepadRichTextEditor;

class CEikDialog;

class CSendUi;

class CItemFinder;

class CFindItemMenu;

class CPlainText;

// CLASS DECLARATION

/**

*  Dialog of viewer mode.

*  CNotepadViewerDialog is a dialog for Notepad viewer.

*  

* @see CNotepadDialogBase

*/

class CNotepadViewerDialog : public CNotepadDialogBase,

                             public MCenRepNotifyHandlerCallback,

                             public MAknItemFinderObserver,

                             public MProgressDialogCallback,

                             public MNotepadLoadFileObserver

    {

    public: // Constructor and destructor

        /**

        * Constructor.

        *

        * @param resource id of type STRUCT NOTEPAD_VIEWER_DIALOG

        * @param aSelfPtr pointer to pointer of this

        * @return Newly constructed CNotepadViewerDialog object.

        * @internal

        */

        IMPORT_C static CNotepadViewerDialog* NewL(

            const TInt aResId, 

            CEikDialog** aSelfPtr );

        /**

        * Destructor.

        */

        IMPORT_C virtual ~CNotepadViewerDialog();

    public: // New functions

        /**

        * Execute a dialog.

        *

        * @return exit status value of CEikDialog's ExecuteLD.

        * @internal

        */

        //IMPORT_C TInt ExecuteLD();

        /**

        * Set information of the file to be shown.

        *

        * @param aFileName text file to view.

        * @param aTitle  TitlePane string (if NULL, Title will be FileName).

        * @param aGuessEncoding guess encoding if ETrue (ignore aEncoding).

        * @param aEncoding encoding of the File

        *   (default ISO-8859-1. This is ignored if aGuessEncoding is ETrue).

        * @internal

        */

        IMPORT_C void SetFileL(

            const TDesC& aFilename, 

            const TDesC* aTitle = NULL,

            TBool aGuessEncoding = EFalse,

            TUint aEncoding = KCharacterSetIdentifierIso88591);

        /**

        * Set information of the file to be shown.

        *

        * @param aFile file handle.

        * @param aTitle  TitlePane string (if NULL, Title will be FileName).

        * @param aGuessEncoding guess encoding if ETrue (ignore aEncoding).

        * @param aEncoding encoding of the File.

        * @internal

        */

        IMPORT_C void SetFileL(

            RFile& aFile, 

            const TDesC* aTitle = NULL,

            TBool aGuessEncoding = EFalse,

            TUint aEncoding = KCharacterSetIdentifierIso88591);

        /**

        * Load contents of the file into the viewer.

        *

        * @internal

        */

        IMPORT_C void LoadFileL();

        /**

        * Load contents of the file into the viewer.

        *

        * @param aFile file handle.

        * @internal

        */

        IMPORT_C void LoadFileL(RFile& aFile);

        /**

        * Set information of the file to be shown and load it.

        *

        * @param aFileName text file to view.

        * @param aTitle  TitlePane string (if NULL, Title will be FileName).

        * @param aGuessEncoding guess encoding if ETrue (ignore aEncoding).

        * @param aEncoding encoding of the File

        * @internal

        */

        IMPORT_C void OpenFileL(

            const TDesC& aFilename, 

            const TDesC* aTitle = NULL,

            TBool aGuessEncoding = EFalse,

            TUint aEncoding = KCharacterSetIdentifierIso88591);

        /**

        * Set information of the file to be shown and load it.

        *

        * @param aFile file handle.

        * @param aTitle  TitlePane string (if NULL, Title will be FileName).

        * @param aGuessEncoding guess encoding if ETrue (ignore aEncoding).

        * @param aEncoding encoding of the File

        * @internal

        */

        IMPORT_C void OpenFileL(

            RFile& aFile, 

            const TDesC* aTitle = NULL,

            TBool aGuessEncoding = EFalse,

            TUint aEncoding = KCharacterSetIdentifierIso88591);

        /**

        * Set information of the descriptor to be shown.

        *

        * @param aFileName text file to view.

        */

        void InitDescriptorViewerL(

            HBufC** aContentPointer, 

            TInt& aReturnStatus,

            TBool aReadOnly, 

            const TDesC& aText, 

            const TDesC& aTitle, 

            const TDesC& aDelConfirmation 

            );

        /**

        * Set the state of automatic highlighting

        * @param aSwitchON, ETrue if automatic highlighting is to used, otherwise EFalse

        */

        void SetAutomaticHighlightL( const TBool aSwitchON );

        /**

        * Reads the shared data value used to initialize automatic highlighting

        * @return TBool, ETrue if automatic highlighting is to be used

        */

        void ReadAutoHlCenRepValueAndSetNotifyL();

    protected:  // Functions from base classes

        /**

        * From CEikDialog.

        */

        TBool OkToExitL( TInt aButtonId ) ;

        /**

        * From MCenRepNotifyHandlerCallback

        * Handles the incoming notifications of key changes

        * @param aId, Key that has changed

        * @param aNewValue, New value of the key    

        */

        void HandleNotifyInt( TUint32 aId, TInt aNewValue );

        /**

        * From MCenRepNotifyHandlerCallback

        * Handles the notifier errors

        * @param aId, Key that has changed

        * @param aNewValue, New value of the key    

        */

        void HandleNotifyError( 

            TUint32 aId, 

            TInt aError, 

            CCenRepNotifyHandler* aHandler );

        /**

        * From CCoeControl

        *

        * @param aType event type.

        */

		void HandleResourceChange(TInt aType);

        /**

        * From CCoeControl.

        * Called when SizeChanged.

        */

        void SizeChanged();

    public:

        void HandleDialogPointerEventL( const TPointerEvent& aPointerEvent );

        void HandleFindItemEventL(

                const CItemFinder::CFindItemExt& aItem,

                MAknItemFinderObserver::TEventFlag aEvent,

                TUint aFlags );

    public: // From MProgressDialogCallback       

        void DialogDismissedL( TInt aButtonId );

    public: // From MNotepadLoadFileObserver   

        /**

        * Notify the observer that load file completed.

        * @param aErrCode the result of load file completed.

        * @since 5.2

        */

        void NotifyCompletedL( TInt aErrCode );

    private: // New function

        /**

        * Show "Attachement saved" note.

        */

        void ShowConfirmationNoteL();

        /**

        * Handle Phone number calls

        */

        void HandleNumberCallL();

    private:  // Functions from base classes

        void ConstructL(TResourceReader& rr);

        /**

        * From CEikDialog.

        */

        void PostLayoutDynInitL();

        /**

        * From CCoeControl.

        */

        void ActivateL();

        /**

        * From CCoeControl

        *

        * @param aKeyEvent key event which includes ScanCode etc.

        * @param aType event type ( up, in, down...).

        */

        TKeyResponse OfferKeyEventL(

            const TKeyEvent& aKeyEvent, 

            TEventCode aType);

        /**

        * From CCoeControl.

        *

        * @param aContext TCoeHelpContext.

        */

        void GetHelpContext(TCoeHelpContext& aContext) const;

        /**

        * From MEikCommandObserver

        * 

        * @param aCommandId command.

        */

        void ProcessCommandL(TInt aCommandId);

        /**

        * From MEikMenuObserver.

        * 

        * @param aResourceId resource id.

        * @param menu pane object.

        */

        void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);

        /**

        * From MEikMenuObserver.

        * 

        * @param aResourceId resource id.

        * @param menu bar object.

        */

        void DynInitMenuBarL(TInt aResourceId,CEikMenuBar* aMenuBar);

    private: // Reserved

        /**

        * Reserved API entry.

        *

        * @internal

        */

        IMPORT_C void CNotepadViewerDialog_Reserved();   

    private:

        /**

        * Callback function for CPeriodic

        *

        * @param TAny* args.

        */

        static TInt TimerCallbackL(TAny* aPtr);    

        /**

        * Called in callback function to exit the dialog

        */

        void ExitDialogOnTimerExpireL();

        /**

        * Clean the progress dialog

        * @since 5.2

        */

        void CleanProgressDialogL(); 

        /**

        * load the file step by step

        * @param aFile  the file object to load

        * @since 5.2

        */

        void LoadFileByStepsL(RFile& aFile);

    private: // Data

        enum TNotepadViewerFlags

            {

            ENotepadMenuByOkKey = 0x02,

            EMenuByItemActication = 0x04

            };

        CNotepadRichTextEditor* iEditor; // not own (dialog own)

        HBufC* iFilename;  // own

        RFile  * iFile;

        HBufC** iContentPointer; // not owned

		TBool iFileExist;

        TPtrC iContent; 

        TPtrC iTitle;

        TPtrC iDelConfirmation;

        TInt* iReturnValue;

        TUint iEncoding;

        TInt iStatus;

        TBool iGuessEncoding;

        // Used to flag whether viewer is handling file or descriptor passed

        // from calling application. This changes option menu items somewhat.

        TBool iDescriptorViewer; 

        // Used in conjunction with iDescriptorViewer flag to determine

        // whether "Edit" option menu item should be visible.

        TBool iEditable;

        CSendUi* iSendUi; // own

        TUint16 iFlags; 

        CItemFinder* iAutoFinder; // own

        CFindItemMenu* iFindMenu; // own

        TBool iTaskSwapperFlag;

        // flag for forward locked content

        TBool iForwardLocked;

        TBool iAutomaticHlValue;

        TBool iAutomaticHlInitialized;

        // Central Repository session

        CRepository* iCenRepSession;

        // Notifier to listen changes of offline state

        CCenRepNotifyHandler* iNotifier;

        CPeriodic*  iPeriodicTimer;

        // Own: Active object for load file asynchronous

        CNotepadLoadFileAO* iLoadFileAO;

        // Own: Progress dialog for load file

        CAknProgressDialog* iProgressDialogLoadfile;

    };

#endif // NPDVIEWERDIALOG_H

// End of File