/*

* Copyright (c) 2006-2008 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 implements class CCIpsPlgRemoveChildPartOperation.

*

*/

// <qmail>

// INCLUDE FILES

#include "emailtrace.h"

#include "ipsplgheaders.h"

// LOCAL CONSTANTS AND MACROS

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

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

// CIpsPlgRemoveChildPartOperation::CIpsPlgRemoveChildPartOperation

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

//

CIpsPlgRemoveChildPartOperation::CIpsPlgRemoveChildPartOperation(

    CMsvSession& aMsvSession,

    TRequestStatus& aObserverRequestStatus,

    const TFSMailMsgId& aMessageId,

    const TFSMailMsgId& aPartId,

    MFSMailRequestObserver& aOperationObserver,

    const TInt aRequestId)

    :

    CIpsPlgBaseOperation( 

        aMsvSession, 

        aObserverRequestStatus,

        aRequestId,

        TFSMailMsgId()),

    iMessageId(aMessageId),

    iPartId(aPartId),

    iOperationObserver(aOperationObserver)

    {

    FUNC_LOG;

    CActiveScheduler::Add( this );

    }

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

// CIpsPlgRemoveChildPartOperation::NewL

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

//

CIpsPlgRemoveChildPartOperation* CIpsPlgRemoveChildPartOperation::NewL(

    CMsvSession& aMsvSession,

    TRequestStatus& aObserverRequestStatus,

    const TFSMailMsgId& aMessageId,

    const TFSMailMsgId& aPartId,

    MFSMailRequestObserver& aOperationObserver,

    const TInt aRequestId)

    {

    FUNC_LOG;

    CIpsPlgRemoveChildPartOperation* self =

        new (ELeave) CIpsPlgRemoveChildPartOperation(

            aMsvSession,

            aObserverRequestStatus,

            aMessageId,

            aPartId,

            aOperationObserver,

            aRequestId );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self ); 

    return self;

    }

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

// CIpsPlgRemoveChildPartOperation::ConstructL

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

//

void CIpsPlgRemoveChildPartOperation::ConstructL()

    {

    FUNC_LOG;

    StartOperationL();

    }

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

// CIpsPlgRemoveChildPartOperation::~CIpsPlgRemoveChildPartOperation

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

//

CIpsPlgRemoveChildPartOperation::~CIpsPlgRemoveChildPartOperation()

    {

    FUNC_LOG;

    Cancel(); // Cancel any request, if outstanding

    }

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

// CIpsPlgRemoveChildPartOperation::DoCancel

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

//

void CIpsPlgRemoveChildPartOperation::DoCancel()

    {

    FUNC_LOG;

    if (iMessage)

        {

        iMessage->AttachmentManager().CancelRequest();

        iMessage->Cancel();

        }

    TRequestStatus* status = &iObserverRequestStatus;

    if ( status && status->Int() == KRequestPending )

        {

        SignalFSObserver(iStatus.Int(),NULL);

        User::RequestComplete( status, iStatus.Int() );

        }

    }

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

// CIpsPlgRemoveChildPartOperation::StartOperation

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

//

void CIpsPlgRemoveChildPartOperation::StartOperationL()

    {

    TInt status( KErrNone );

    CMsvEntry* cEntry( NULL );

    TMsvEntry tEntry;

    TMsvId serviceId;

    status = iMsvSession.GetEntry( iPartId.Id(), serviceId, tEntry );

    if ( ( status == KErrNone ) && 

         ( tEntry.iType == KUidMsvAttachmentEntry ) )

        {

        iMessage = NULL;

        // We trust that the message ID really refers to a message

        GetMessageEntryL( iMessageId.Id(), cEntry, iMessage );

        MMsvAttachmentManager& attachmentMgr( iMessage->AttachmentManager() ); 

        // Start async request

        attachmentMgr.RemoveAttachmentL( 

            (TMsvAttachmentId) iPartId.Id(), iStatus );

        SetActive();

        }

    else if ( ( status == KErrNone ) && 

              ( tEntry.iType == KUidMsvFolderEntry ) )

        {

        cEntry = iMsvSession.GetEntryL( tEntry.Parent() );

        CleanupStack::PushL( cEntry );

        cEntry->DeleteL( tEntry.Id() );

        CleanupStack::PopAndDestroy( cEntry );

        }

    }

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

// CIpsPlgRemoveChildPartOperation::RunL

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

//

void CIpsPlgRemoveChildPartOperation::RunL()

    {

    if (iStatus.Int() == KErrNone)

        {

        // Inform observer

        SignalFSObserver(iStatus.Int(),NULL);

        // Complete observer

        TRequestStatus* observerStatus = &iObserverRequestStatus;

        User::RequestComplete( observerStatus, iStatus.Int() );   

        }

    else if (iStatus.Int() == KErrCancel)

        {

        // Do Nothing   

        }

    else

        {

        User::Leave(iStatus.Int());

        }

    }

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

// CIpsPlgRemoveChildPartOperation::GetMessageEntryL( )

// Checks whether the requested message is already cached. If not, the cached 

// objects are deleted and new objects are created.

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

void CIpsPlgRemoveChildPartOperation::GetMessageEntryL( 

    TMsvId aId, 

    CMsvEntry*& aMessageEntry,

    CImEmailMessage*& aImEmailMessage )

    {

    FUNC_LOG;

    if ( !iCachedEntry || ( aId != iCachedEntry->Entry().Id() ) ||

            iCachedEmailMessage->IsActive() )

        {

        CleanCachedMessageEntries();

        iCachedEntry = iMsvSession.GetEntryL( aId );

        if ( iCachedEntry->Entry().iType == KUidMsvMessageEntry )

            {

            iCachedEmailMessage = CImEmailMessage::NewL( *iCachedEntry );

            }

        }

    aMessageEntry = iCachedEntry;

    aImEmailMessage = iCachedEmailMessage;

    }

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

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

//

void CIpsPlgRemoveChildPartOperation::CleanCachedMessageEntries()

    {

    FUNC_LOG;

    delete iCachedEmailMessage;

    iCachedEmailMessage = NULL;

    delete iCachedEntry;

    iCachedEntry = NULL;

    }

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

// CIpsPlgRemoveChildPartOperation::RunError

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

//

TInt CIpsPlgRemoveChildPartOperation::RunError(TInt aError)

    {

    FUNC_LOG;

    SignalFSObserver( aError, NULL );

    TRequestStatus* status = &iObserverRequestStatus;

    User::RequestComplete( status, aError );

    return KErrNone; // RunError must return KErrNone to active sheduler.

    }

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

// CIpsPlgRemoveChildPartOperation::SignalFSObserver

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

//

void CIpsPlgRemoveChildPartOperation::SignalFSObserver(

        TInt aStatus, CFSMailMessagePart* /*aMessagePart*/ )

    {

    FUNC_LOG;

    if ( aStatus == KErrCancel )

        {

        iFSProgress.iProgressStatus = TFSProgress::EFSStatus_RequestCancelled;

        iFSProgress.iError = KErrCancel;

        iFSProgress.iParam = NULL;

        }

    else

        {

        iFSProgress.iProgressStatus = TFSProgress::EFSStatus_RequestComplete;

        iFSProgress.iError = aStatus;

        iFSProgress.iParam = NULL;

        }

    TRAP_IGNORE( iOperationObserver.RequestResponseL( iFSProgress, iFSRequestId ) );

    }

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

// CIpsPlgRemoveChildPartOperation::ProgressL

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

//

const TDesC8& CIpsPlgRemoveChildPartOperation::ProgressL()

    {

    FUNC_LOG;

    return KNullDesC8;

    }

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

// CIpsPlgNewChildPartFromFileOperation::GetErrorProgressL

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

//   

const TDesC8& CIpsPlgRemoveChildPartOperation::GetErrorProgressL( TInt /*aError*/ )

    {

    FUNC_LOG;

    return KNullDesC8; // error progress info not supported

    }

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

// CIpsPlgNewChildPartFromFileOperation::GetFSProgressL

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

//   

TFSProgress CIpsPlgRemoveChildPartOperation::GetFSProgressL() const

    {

    FUNC_LOG;

    return iFSProgress;

    }

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

// CIpsPlgNewChildPartFromFileOperation::IpsOpType

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

TIpsOpType CIpsPlgRemoveChildPartOperation::IpsOpType() const

    {

    FUNC_LOG;

    return EIpsOpTypeNewChildPartFromFile;

    }

//  End of File

// </qmail>