/*

* Copyright (c) 2007 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: This file defines class CNcsAifEntry.

*

*/

#ifndef CNCSAIFEDITOR_H

#define CNCSAIFEDITOR_H

#include "ncseditor.h"

class CNcsEmailAddressObject;

class MNcsAddressPopupList;

class CNcsAifEntry;

/**

*  CNcsAifEditor class.

*/

class CNcsAifEditor: public CNcsEditor, public MEikEdwinObserver

    {

public: // constructors/destructor

    CNcsAifEditor( MNcsFieldSizeObserver* aSizeObserver );

    void ConstructL( const CCoeControl* aParent,

                     TInt aNumberOfLines,

                     TInt aTextLimit );    

    virtual ~CNcsAifEditor();

public: // from CoeControl

    TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType );

public: // from MEikEdwinObserver

    void HandleEdwinEventL(CEikEdwin* aEdwin, TEdwinEvent aEventType);

public: // new functions

    virtual TInt LineCount() const;

    virtual TInt CursorLineNumber() const;

    void UpdateAddressListAllL();

    void CopyToStoreL(

        CStreamStore& aStore, 

        CStreamDictionary& aDict );

    void CheckAddressWhenFocusLostL();

    void ParseNewAddressL();

    TKeyResponse HandleContactDeletionL(const TKeyEvent& aKeyEvent, TEventCode aType);

    const CNcsEmailAddressObject* EmailAddressObjectBySelection() const;

    /**

    * Get the text to match in either the local address book

    * or the remote directory server

    */

    HBufC* GetLookupTextLC() const;

    void AddAddressL(

        const TDesC& aDN, 

        const TDesC& aEmail,

        TBool aDisplayFull = EFalse,

        TBool aUpdateEditorText = ETrue );

    void AddAddressL( const CNcsEmailAddressObject& aAddress, TBool aUpdateEditorText = ETrue );

    void SetAddressesL( const RPointerArray<CNcsEmailAddressObject>& aAddress );

    void AppendAddressesL( const RPointerArray<CNcsEmailAddressObject>& aAddress );

    const RPointerArray<CNcsEmailAddressObject>& GetAddressesL();

    void RecalculateEntryPositions();

    inline void SetPopupList(MNcsAddressPopupList* aPopupList);

private: // new functions

    enum TEntryDirection

        {

        EDirectionNone,

        EDirectionRight,

        EDirectionLeft

        };

    void UpdateAddressAutoCompletionL();

    void UpdateAddressAutoCompletionL( const TCursorSelection& aSelection );

    void DoCharChangeL();

    TChar CharAtPos( TInt aPos ) const;

    void AddAddressL( CNcsAifEntry* aEntry, TBool aUpdateEditorText );

    TKeyResponse SetEditorSelectionL( const TKeyEvent& aKeyEvent, TEventCode aType );

    TInt CalculateAddressListLength(

        RPointerArray<CNcsAifEntry>& aEntries,

        TBool aDisplayList = ETrue ) const;

    /**

    * Creates formatted address list of given entries.

    *

    * @param aEntries Entries from which list is constructed.

    * @param aDisplayList If ETrue, constructs list of display names

    *                     of the addresses. If EFalse, constructs list

    *                     of email addresses.

    */

    HBufC* GetFormattedAddressListLC( 

        RPointerArray<CNcsAifEntry>& aEntries,

        TBool aDisplayList = ETrue ) const;

    HBufC* GetFormattedAddressListL(

        RPointerArray<CNcsAifEntry>& aEntries,

        TBool aDisplayList = ETrue ) const;

    void RepositionEntriesL( const CNcsAifEntry* aEntry );

    void CheckAndRemoveInvalidEntriesL();

    CNcsAifEntry* GetEntryAt( 

        TInt aPos, 

        TEntryDirection aDirection = EDirectionNone ) const;

    /** Browse backwards from given position and return the first found entry */

    CNcsAifEntry* GetPreviousEntryFrom( TInt aPos ) const;

    HBufC* GetNonEntryTextLC() const;

    TKeyResponse CopyEntriesToClipboardL(

        const TKeyEvent& aKeyEvent, 

        TEventCode aType );

    void FindSelectedEntriesL( RPointerArray<CNcsAifEntry>& aEntries );

	// <cmail> fixed CS high cat. finding

    void UpdateDuplicateEntryMarkingsL();

    void HandleTextUpdateDeferred();

    static TInt DoHandleTextUpdate( TAny* aSelf );

    void HandleTextUpdateL();

    /** 

     * Handle addition of complete address. May result in complete redraw of the field.

     * @return  ETrue   if terminated recipient entry was found and added to array. 

     */

    TBool HandleTextUpdateL( const TCursorSelection& aSelection );

    void HandleNavigationEventL();

    TCursorSelection NonEntryTextAtPos( TUint aPosition ) const;

    TCursorSelection NonEntryTextBeforePos( TUint aPosition ) const;

    TBool IsSentinel( TChar aCharacter ) const;

    TBool IsWhitespace( TChar aCharacter ) const;

    TBool IsNavigationKey( const TKeyEvent& aKeyEvent ) const;

    TBool IsCharacterKey( const TKeyEvent& aKeyEvent ) const;

    void GetMatchingEntryCountsL( 

            const CNcsAifEntry* aEntry,

            TInt& aNrOfMatchesInText,

            TInt& aNrOfMatchesInEntryArray );

private: // data

    RPointerArray<CNcsAifEntry> iArray;

    RPointerArray<CNcsEmailAddressObject> iAddressArray;

    MNcsAddressPopupList* iAddressPopupList;

    CAsyncCallBack* iAsyncCallBack;

    TInt iLastTimeCursorPos;

    // Flag indicating whether add the leftover text to the end of the field

    TBool iAddLeftover;

	};

///////////////////////////////////////////////////////////////////////

// CNcsAifEntry

// This class represents a full entry in the AIF field.

// It is derived from TCursorSelection which helps in atomizing the

// items when the cursor moves over them.

// NOTES:

//		iAnchorPosition is non-inclusive.  This position represents

//		the anchor of a selection and is not included in the selection

//		count.  So the selection would be iCursorPosition to iAnchorPosition

//		- 1.  The SetSelection function will highlight anything left of the

//		anchor up to and including the cursor.

//		The idea is that if you were to use shift-cursor to select text,

//		The anchor would be the cursor you started to hold down the shift.

//		Since this location is not included in the selection, but rather

//		the first position left or right of this poistion, the anchor is

//		never included in the selection.

class CNcsAifEntry : public CBase, public TCursorSelection

    {

public:

    static CNcsAifEntry* CNcsAifEntry::NewL( const CNcsEmailAddressObject& aAddr );

	static CNcsAifEntry* CNcsAifEntry::NewL(

        const TDesC& aDn, 

        const TDesC& aEml,

        TBool aDisplayFull );

	CNcsAifEntry::~CNcsAifEntry();

private:

	CNcsAifEntry();

	void ConstructL( const TDesC& aDn, const TDesC& aEml, TBool aDisplayFull );

	void ConstructL( const CNcsEmailAddressObject& aAddress );

	void ConstructL() ;

	void SetDisplayStringL(); 

public:

	inline TInt DisplayLength() const;

	inline const TDesC& DisplayString() const;

	inline TInt SetPos(TInt aPos);

	inline TBool Includes(TInt aPos) const;

	inline TInt Start() const;

	inline TInt End() const;

	inline const CNcsEmailAddressObject& Address() const;

	inline TBool IsDup() const; 

	void SetDupL( TBool aDup = ETrue );

    TBool IsSameDN(const CNcsAifEntry& aEntry) const;

private:

	CNcsEmailAddressObject* iAddress;

	HBufC* iDisplayString;

    TBool iIsDup;

    };

#include "ncsaifeditor.inl"

#endif // CNCSSUBJECTFIELD_H

// End of File