/*

* Copyright (c) 2005 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: Implementation for meeting request utils calendar db tombs  

*

*/

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

// INCLUDE FILES

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

//

#include "CMRUtilsCalDbTombs.h"

#include <CalEntryView.h>

#include <CalEntry.h>

#include <CalCommon.h>

#include <CalSession.h>

#include <CalUser.h>

// CONSTANTS

/// Unnamed namespace for local definitions

namespace {

_LIT( KMRUtilsTombsDb, "c:tombstones" );

enum TPanicCode

    {

    EPanicUnexpectedCalEngStatus = 1,

    EPanicEntryViewAlreadyExists

    };

_LIT( KPanicMsg, "CMRUtilsCalDbTombs" );

void Panic( TPanicCode aReason )

    {

    User::Panic( KPanicMsg, aReason );

    }

}  // namespace

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

// MEMBER FUNCTIONS

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

//

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

// CMRUtilsCalDbTombs::NewL

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

//

CMRUtilsCalDbTombs* CMRUtilsCalDbTombs::NewL(

    MMRUtilsCalDbObserver& aDbObserver,

    MCalProgressCallBack& aCmdObserver )

	{

	CMRUtilsCalDbTombs* self =

	    new( ELeave ) CMRUtilsCalDbTombs( aDbObserver, aCmdObserver );

	CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop();

	return self;

	}

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

// CMRUtilsCalDbTombs::CMRUtilsCalDbTombs

//

// Constructor.

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

//

CMRUtilsCalDbTombs::CMRUtilsCalDbTombs(

    MMRUtilsCalDbObserver& aDbObserver,

    MCalProgressCallBack& aCmdObserver )

    : CMRUtilsCalDbBase( aDbObserver, aCmdObserver )

    {

    }

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

// CMRUtilsCalDbTombs::~CMRUtilsCalDbTombs

//

// Destructor.

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

//        

CMRUtilsCalDbTombs::~CMRUtilsCalDbTombs()

    {

    delete iCalEntryView;

    delete iCalSession;

    }

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

// CMRUtilsCalDbTombs::ConstructL

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

//    

void CMRUtilsCalDbTombs::ConstructL()

    {

    // This subclass of CMRUtilsCalDbBase owns the session it creates:

    iCalSession = CCalSession::NewL();

    OpenTombsFileWithEntryViewL();

    }

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

// CMRUtilsCalDbTombs::ResetDbL

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

//        

void CMRUtilsCalDbTombs::ResetDbL()

    {

    iDbStatus = MMRUtilsCalDbObserver::EReseting;

    iDbObserver.HandleCalDbStatus( this, iDbStatus );

    // Close references

    // (it is caller's responsibility to have closed own references):

    delete iCalEntryView;

    iCalEntryView = NULL;

    iCalSession->DeleteCalFileL( KMRUtilsTombsDb );

    OpenTombsFileWithEntryViewL();

    }

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

// CMRUtilsCalDbTombs::Completed

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

//    

void CMRUtilsCalDbTombs::Completed( TInt aError )

    {

    if ( aError == KErrNone )

        {

        __ASSERT_DEBUG( iDbStatus == MMRUtilsCalDbObserver::EInitEntryView,

                        Panic( EPanicUnexpectedCalEngStatus ) );             

        iDbStatus = MMRUtilsCalDbObserver::EFinishedOk;

        }

    else // aError != KErrNone

        { // Initialization error has occurred, tombs db not usable:

        iDbStatus = MMRUtilsCalDbObserver::EFinishedError;

        }

    // If either of the final states has been reached, then notify observer:            

    if ( iDbStatus == MMRUtilsCalDbObserver::EFinishedOk ||

         iDbStatus == MMRUtilsCalDbObserver::EFinishedError )

        {

        iDbObserver.HandleCalDbStatus( this, iDbStatus );            

        }    

    }

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

// CMRUtilsCalDbTombs::OpenTombsFileWithEntryViewL

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

//    

void CMRUtilsCalDbTombs::OpenTombsFileWithEntryViewL()

    {    

    TRAPD( err, iCalSession->OpenL( KMRUtilsTombsDb ) );

    if ( err == KErrNotFound )

        {

        iCalSession->CreateCalFileL( KMRUtilsTombsDb );

        iCalSession->OpenL( KMRUtilsTombsDb ); // not trapped anymore

        }

    else

        {

        User::LeaveIfError( err );

        }

    __ASSERT_DEBUG( !iCalEntryView, Panic( EPanicEntryViewAlreadyExists ) );

    iCalEntryView = CCalEntryView::NewL( *iCalSession, *this );

    iDbStatus = MMRUtilsCalDbObserver::EInitEntryView;

    // See Completed() for continuation...        

    }

// End of file