/*

* 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:  Mail editor header content handler.

*

*/

#ifndef C_CMSGMAILEDITORHEADER_H

#define C_CMSGMAILEDITORHEADER_H

#include <e32base.h> // CBase

#include <MsgAttachmentModelObserver.h> // MMsgAttachmentModelObserver

class CMsgMailEditorDocument;

class CMsgEditorView;

class TAdditionalHeaderStatus;

/**

 *  Mail Editor UI header field handler.

 *

 *  Manipulates content of mail editor header fields.

 *

 *  @lib none

 *  @since S60 v3.1

 */

class CMsgMailEditorHeader : public CBase, public MMsgAttachmentModelObserver

    {

public:

    /**

     * NewL

     * Creates mail editor header fields

     * @since S60 v3.1

     * @param aDocument reference to editor document.

     * @param aView reference to editor view.

     * @return self

     */

    static CMsgMailEditorHeader* NewL(

        CMsgMailEditorDocument& aDocument,

        CMsgEditorView& aView );

    ~CMsgMailEditorHeader();

    /**

     * Update visibility of mail editor address fields.

     *

     * @since S60 v3.1

     */    

    void UpdateHeaderVisibilityL(

        RPointerArray<TAdditionalHeaderStatus>& aHeaders );

    /**

     * Update visibility of mail editor Reply-to field.

     *

     * @since S60 v3.2

     */        

    void UpdateReplyToControlL();    

// from base class MMsgAttachmentModelObserver

    void NotifyChanges( 

        TMsgAttachmentCommand aCommand, 

        CMsgAttachmentInfo* aAttachmentInfo );

    RFile GetAttachmentFileL( TMsvAttachmentId aId );

private:

    CMsgMailEditorHeader(

        CMsgMailEditorDocument& aDocument,

        CMsgEditorView& aView);

    void ConstructL();

private: // implementation    

    void AddControlL( TInt aControlType );

    CMsgAttachmentControl* AttachmentControl() const;

    void CreateHeadersL();    

    void DoCreateAttachmentControlL();

    void DoRemoveAttachmentControlL();

    void UpdateAttachmentControlL( 

        TMsgAttachmentCommand aCommand,

        CMsgAttachmentInfo* aAttachmentInfo );

private: // data

    /**

     * Reference to mail editor document

     */

    CMsgMailEditorDocument& iDocument;

    /**

     * Reference to mail editor view

     */    

    CMsgEditorView& iView;

    };

#endif // C_CMSGMAILEDITORHEADER_H