/*

* Copyright (c) 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:  MR Attachment field for editor and viewer

 *

*/

#ifndef CMRVIEWERATTACHMENTSFIELD_H

#define CMRVIEWERATTACHMENTSFIELD_H

#include <e32base.h>

#include <eikedwob.h>

#include "esmrdef.h"

#include "cesmrfield.h"

#include "cesmrrichtextviewer.h"

// Forward declarations

class CMRImage;

class CEikButtonGroupContainer;

class CAknsBasicBackgroundControlContext;

class CESMRRichTextViewer;

class CCalAttachment;

class CMRAttachmentCommandHandler;

class CCalRemoteAttachmentApi;

class CCalRemoteAttachmentInfo;

class MCalRemoteAttachmentOperation;

/**

 * CMRViewerAttachmentsField is entry viewer attachment field

 */

NONSHARABLE_CLASS( CMRViewerAttachmentsField ):

        public CESMRField,

        public MEikEdwinSizeObserver,

        public MESMRRichTextObserver

    {

public:

    /**

     * Two phase constructor.

     */

    static CMRViewerAttachmentsField* NewL();

    /**

     * Destructor.

     */

    ~CMRViewerAttachmentsField();

protected: // From CESMRField

    TSize MinimumSize();

    void InitializeL();

    void InternalizeL( MESMRCalEntry& aEntry );

    void ExternalizeL( MESMRCalEntry& aEntry );

    TBool ExecuteGenericCommandL( TInt aCommand );

    void SetOutlineFocusL( TBool aFocus );

    void ListObserverSet();

    void HandleLongtapEventL( const TPoint& aPosition );

    TBool HandleRawPointerEventL( const TPointerEvent& aPointerEvent );

    void DynInitMenuPaneL(

                 TInt aResourceId,

                 CEikMenuPane* aMenuPane );

    void LockL();

    TBool SupportsLongTapFunctionalityL(

        		 const TPointerEvent &aPointerEvent );

protected: // From CCoeControl

    TInt CountComponentControls() const;

    CCoeControl* ComponentControl( TInt aInd ) const;

    void SizeChanged();

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

protected: // From MEikEdwinSizeObserver

    TBool HandleEdwinSizeEventL( CEikEdwin* aEdwin, TEdwinSizeEvent aType, TSize aDesirableEdwinSize);

protected: // From MESMRRichTextObserver

    TBool HandleRichTextLinkSelection( const CESMRRichTextLink* aLink );

private: // Implementation

    CMRViewerAttachmentsField();

    void ConstructL();

    void UpdateAttachmentsListL();

    HBufC* ClipTextLC( const TDesC& aText, const CFont& aFont, TInt aWidth );

    void UpdateFieldL();

    HBufC* AttachmentNameAndSizeL( const TDesC& aDes, const CCalAttachment& aAttachment );

    TInt LineSpacing();

    TInt FocusMargin();

    void CreateRemoteAttApiL();

    void DynInitMenuPaneForCurrentAttachmentL(

                 CEikMenuPane* aMenuPane );

    TBool IsAttachmentDownloadInProgress( const CCalAttachment& aAttachment );

    TInt MaxTextLengthInPixelsL();

private: //data

    // Own: Field icon

    CMRImage* iFieldIcon;

    /// Own: Lock icon

    CMRImage* iLockIcon;

    // Owned. Attachment list.

    CESMRRichTextViewer* iRichTextViewer;

    // Own. Background control context.

    CAknsBasicBackgroundControlContext* iBgCtrlContext;

    // Attachment count

    TInt iAttachmentCount;

    /// Ref: Reference to internalized entry

    MESMRCalEntry* iEntry;

    // Field rect for comparison purposes

    TRect iFieldRect;

    // Rich Text viewer size

    TSize iRichTextSize;

    /// Own: Attachment command handler

    CMRAttachmentCommandHandler* iAttachmentCommandHandler;

    /// Own: Remote attachment API

    CCalRemoteAttachmentApi* iRemoteAttApi;

    /// Own: Remote attachment URIs

    CDesCArrayFlat* iRemoteAttUris;

    /// Own: Remote attachment info

    CCalRemoteAttachmentInfo* iAttachmentInfo;

    };

#endif  // CMRATTACHMENTSFIELD_H