/*

* Copyright (c) 2010 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:  A helper object to open messagin entries (e.g. emails).

*

*/

// INCLUDE FILES

#include "MsvUI.h"

#include <mtclbase.h>

#include <mtclreg.h>

#include <mtmuibas.h>

#include <mtuireg.h>

// ============================ MEMBER FUNCTIONS =============================

// ---------------------------------------------------------------------------

// CMsvUI::CMsvUI

// C++ constructor can NOT contain any code, that might leave.

// ---------------------------------------------------------------------------

//

CMsvUI::CMsvUI()

    : CActive( EPriorityStandard )

    {

    }

// Destructor.

CMsvUI::~CMsvUI()

    {

    Cancel();

    if ( iOperation )

        {

        iOperation->Cancel();

        }

    delete iOperation;

    iOperation = NULL;

    delete iUI;

    iUI = NULL;

    delete iMtm;

    iMtm = NULL;

    delete iUIReg;

    iUIReg = NULL;

    delete iMtmReg;

    iMtmReg = NULL;

    delete iSession;

    iSession = NULL;

    }

// ---------------------------------------------------------------------------

// CMsvUI::OpenEntryL

// From MMsvUI. Opens the messaging entry.

// ---------------------------------------------------------------------------

//

void CMsvUI::OpenEntryL( const TUid& aMsvId )

    {

    if ( iOperation )

        {

        User::Leave( KErrInUse );

        }

    if ( ! iSession )

        {

        iSession = CMsvSession::OpenSyncL( *this );

        }

    if ( ! iMtmReg )

        {

        iMtmReg = CClientMtmRegistry::NewL( *iSession );

        }

    if ( ! iUIReg )

        {

        iUIReg = CMtmUiRegistry::NewL( *iSession );

        }

    TMsvId entryId( aMsvId.iUid ) ;

    TMsvEntry entry;

    User::LeaveIfError( iSession->GetEntry( entryId, entryId, entry ) );

    // entryId now contains the service ID of the entry (not used currently)

    if ( ! iMtm || iMtm->Type() != entry.iMtm )

        {

        // MTM changed. UI will most probably change, too.

        delete iUI;

        iUI = NULL;

        delete iMtm;

        iMtm = NULL;

        iMtm = iMtmReg->NewMtmL( entry.iMtm );

        }

    if ( ! iUI )

        {

        iUI = iUIReg->NewMtmUiL( *iMtm );

        }

    iMtm->SwitchCurrentEntryL( entry.Id() );

    iOperation = iUI->OpenL( iStatus );

    if ( iOperation && iOperation->IsActive() )

        {

        if ( ! IsAdded() )

            {

            CActiveScheduler::Add(this);

            }

        SetActive();

        }

    else

        {

        Deque();

        delete iOperation;

        iOperation = NULL;

        }

    }

// ---------------------------------------------------------------------------

// CMsvUI::RunL

// From CActive. Handles an active object's request completion event.

// ---------------------------------------------------------------------------

//

void CMsvUI::RunL()

    {

    Deque();

    delete iOperation;

    iOperation = NULL;

    }

// ---------------------------------------------------------------------------

// CMsvUI::DoCancel

// From CActive. Implements cancellation of an outstanding request.

// ---------------------------------------------------------------------------

//

void CMsvUI::DoCancel()

    {

    if ( iOperation )

        {

        iOperation->Cancel();

        }

    delete iOperation;

    iOperation = NULL;

    }

// ---------------------------------------------------------------------------

// CIDSGenericResultItem::HandleSessionEventL

// From MMsvSessionObserver. Indicates an event has occurred.

// ---------------------------------------------------------------------------

//

void CMsvUI::HandleSessionEventL( TMsvSessionEvent aEvent,

                                  TAny* /* aArg1 */,

                                  TAny* /* aArg2 */,

                                  TAny* /* aArg3 */ )

    {

    switch ( aEvent )

        {

        case EMsvCloseSession:

        case EMsvServerTerminated:

            {

            Deque();

            delete iOperation;

            iOperation = NULL;

            delete iUI;

            iUI = NULL;

            delete iMtm;

            iMtm = NULL;

            delete iUIReg;

            iUIReg = NULL;

            delete iMtmReg;

            iMtmReg = NULL;

            delete iSession;

            iSession = NULL;

            break;

            }

        default:

            break;

        }

    }

// End of File