/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Implementation of CPushMessageInfoOp.

*

*/

// INCLUDE FILES

#include "PushMessageInfoOp.h"

#include "PushMessageInfoDialog.h"

#include "PushMtmUtil.h"

#include "PushMtmUiDef.h"

#include "PushMtmUiPanic.h"

#include "PushMtmLog.h"

#include <AknNoteWrappers.h>

#include <PushMtmUi.rsg>

#include <data_caging_path_literals.hrh>

#include <f32file.h>

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

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

// CPushMessageInfoOp::CPushMessageInfoOp

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

//

CPushMessageInfoOp::CPushMessageInfoOp( CMsvSession& aSession, 

                                        TMsvId aEntryId, 

                                        TBool aDontShowNotification, 

                                        TRequestStatus& aObserverStatus ) 

:   CPushMtmUiOperation( aSession, aEntryId, aObserverStatus ), 

    iDontShowNotification( aDontShowNotification ), 

    iObserverCompleted( EFalse )

    {

    }

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

// CPushMessageInfoOp::~CPushMessageInfoOp

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

//

CPushMessageInfoOp::~CPushMessageInfoOp()

    {

    Cancel();

    delete iDialog;

    if ( iDeletedFlag )

        {

		*iDeletedFlag = ETrue;

        }

    }

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

// CPushMessageInfoOp::StartL

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

//

void CPushMessageInfoOp::StartL()

    {

    Cancel();

    iObserverCompleted = EFalse;

    CPushMtmOperation::StartL();

    }

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

// CPushMessageInfoOp::RunL

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

//

void CPushMessageInfoOp::RunL()

    {

    __ASSERT_DEBUG( !iDialog, UiPanic( EPushMtmUiPanAlreadyInitialized ) );

    if ( iObserverCompleted )

        {

        return;

        }

    TBool deleted( EFalse );

    iDeletedFlag = &deleted;

    // Time to set up entry observation (delete & replacement case).

    ObserveEntryEventL();

    iDialog = new (ELeave) CPushMessageInfoDialog;

    // Workaround for Cancel(): SetActive() is called.

    // CMsvSingleOpWatcher::DoCancel() will wait for this observed object to 

    // complete that. iDialog->ExecuteLD() allows other RunL's to run, so 

    // that it may happen that CMsvSingleOpWatcher::DoCancel() is called 

    // when iDialog->ExecuteLD() is running. It means that this object must 

    // be active in that time in order DoCancel() will be called.

    iStatus = KRequestPending;

    iDialog->ExecuteLD( iMsvSession, iEntryId );

    SetActive();

    // Ready.

    if ( !deleted )

        {

        iDialog = NULL;

        iDeletedFlag = NULL;

        // Consider what happens if this object is cancelled in ExecuteLD!

        // In this case the observer is already completed (DoCancel), so 

        // avoid completeing it twice. iObserverCompleted indicates it.

        if ( !iObserverCompleted )

            {

            SignalObserver( KErrNone );

            iObserverCompleted = ETrue;

            // Due to SetActive() call RunL again, but it will do nothing 

            // (see above).

            InvokeRun();

            }

        }

    }

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

// CPushMessageInfoOp::DoCancel

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

//

void CPushMessageInfoOp::DoCancel()

    {

    PUSHLOG_WRITE("CPushMessageInfoOp::DoCancel");

    CancelObserveEntryEvent();

    if ( iDialog )

        {

        delete iDialog;

        iDialog = NULL;

        // Due to SetActive() in RunL we must call InvokeRun(): the dialog 

        // does not completes this operation.

        InvokeRun();

        }

    if ( !iObserverCompleted )

        {

        SignalObserver( KErrCancel );

        iObserverCompleted = ETrue;

        }

    }

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

// CPushMessageInfoOp::RunError

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

//

TInt CPushMessageInfoOp::RunError( TInt aError )

    {

    PUSHLOG_WRITE_FORMAT("CPushMessageInfoOp::RunError: %d",aError);

    CancelObserveEntryEvent();

    if ( !iObserverCompleted )

        {

        SignalObserver( aError );

        iObserverCompleted = ETrue;

        }

    return aError;

    }

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

// CPushMessageInfoOp::HandleEntryEventL

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

//

void CPushMessageInfoOp::HandleEntryEventL( TMsvEntryEvent aEvent, 

                         TAny* /*aArg1*/, TAny* /*aArg2*/, TAny* /*aArg3*/ )

    {

    PUSHLOG_ENTERFN("CPushMessageInfoOp::HandleEntryEventL");

    if ( aEvent == EMsvEntryChanged )

        {

        PUSHLOG_WRITE(" Changed");

        HandleEntryChangeL();

        }

    else if ( aEvent == EMsvEntryDeleted )

        {

        PUSHLOG_WRITE(" Deleted");

        NotifyAndCancelL( R_PUSHLS_EXPIRED_NOTE );

        }

    else

        {

        // Nothing to do.

        }

    PUSHLOG_LEAVEFN("CPushMessageInfoOp::HandleEntryEventL");

    }

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

// CPushMessageInfoOp::HandleEntryChangeL

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

//

void CPushMessageInfoOp::HandleEntryChangeL()

    {

    PUSHLOG_ENTERFN("CPushMessageInfoOp::HandleEntryChangeL");

    // We have to act only in case of such changes where the content 

    // of the message changes, not only the unread/read flag.

    // The content handlers and the Push subsystem behave so that 

    // the content is changed only when the entry becomes 'unread', 

    // except one case where the CH changes the content, but the 

    // message becomes 'read' (SL-execute-high). In this case 

    // a flag indicates that the content was changed.

    // Get an up-to-date entry and check the necessary flags:

    TMsvEntry tEntry;

    TMsvId service;

    User::LeaveIfError( iMsvSession.GetEntry( iEntryId, service, tEntry ) );

    TBool isChangeToUnread = tEntry.Unread();

    TBool contentChangedFlagSet = 

        CPushMtmUtil::Attrs( tEntry ) & EPushMtmReadButContentChanged;

    if ( !isChangeToUnread && !contentChangedFlagSet )

        {

        // Nothing to do. Somebody has just marked it 'read'.

        PUSHLOG_WRITE(" Content not changed");

        }

    else

        {

        NotifyAndCancelL( R_PUSHMISC_INFO_REPLACED );

        }

    PUSHLOG_LEAVEFN("CPushMessageInfoOp::HandleEntryChangeL")

    }

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

// CPushMessageInfoOp::NotifyAndCancelL

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

//

void CPushMessageInfoOp::NotifyAndCancelL( TInt aResId )

    {

    PUSHLOG_ENTERFN("CPushMessageInfoOp::NotifyAndCancelL");

    if ( iDontShowNotification )

        {

        // Don't show.

        }

    else

        {

        // Add resource file.

        TParse* fileParser = new (ELeave) TParse;

        CleanupStack::PushL( fileParser );

        fileParser->Set( KPushMtmUiResourceFileAndDrive, &KDC_MTM_RESOURCE_DIR, NULL ); 

        AssureResourceL( fileParser->FullName() );

        CleanupStack::PopAndDestroy( fileParser ); // fileParser

        fileParser = NULL;

        // Show note about the message deletion.

        HBufC* noteText = iCoeEnv.AllocReadResourceLC( aResId );

        CAknInformationNote* note = new (ELeave) CAknInformationNote( ETrue );

        note->ExecuteLD( *noteText );

        CleanupStack::PopAndDestroy( noteText ); // noteText

        }

    // Close the dialog anyway.

    Cancel();

    PUSHLOG_LEAVEFN("CPushMessageInfoOp::NotifyAndCancelL");

    }

// End of file.