/*

* Copyright (c) 2007 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:  Class definition of CDiagPluginWaitingDialogWrapper

*

*/

// CLASS DECLARATION

#include "diagpluginwaitingdialogwrapper.h"

// SYSTEM INCLUDE FILES

#include <AknDialog.h>                      // CAknDialog

// USER INCLUDE FILES

#include "diagpluginbase.pan"               // Panic Codes

// LOCAL TYPES

// ======== LOCAL FUNCTIONS ========

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

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

// CDiagPluginWaitingDialogWrapper::NewL

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

//

EXPORT_C CDiagPluginWaitingDialogWrapper* CDiagPluginWaitingDialogWrapper::NewL( 

        CAknDialog* aWaitingDialog )

    {

    CleanupStack::PushL( aWaitingDialog );

    CDiagPluginWaitingDialogWrapper* self = new ( ELeave ) 

        CDiagPluginWaitingDialogWrapper( aWaitingDialog );

    CleanupStack::Pop( aWaitingDialog );

    return self;

    }

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

// CDiagPluginWaitingDialogWrapper::CDiagPluginWaitingDialogWrapper

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

//

CDiagPluginWaitingDialogWrapper::CDiagPluginWaitingDialogWrapper( 

        CAknDialog* aWaitingDialog )

    :   iWaitingDialog( aWaitingDialog ),

        iIsObjectDeletedPtr( NULL )

    {

    // Dialog must not be NULL

    __ASSERT_ALWAYS( iWaitingDialog, Panic( EDiagPluginBasePanicBadArgument ) );

    // Dialog must have EEikDialogFlagWait flag set

    __ASSERT_ALWAYS( !(iWaitingDialog->DialogFlags() & EEikDialogFlagWait),

                     Panic( EDiagPluginBasePanicBadArgument ) );

    }

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

// CDiagPluginWaitingDialogWrapper::~CDiagPluginWaitingDialogWrapper

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

//

EXPORT_C CDiagPluginWaitingDialogWrapper::~CDiagPluginWaitingDialogWrapper()

    {

    if( iIsObjectDeletedPtr )

        {

        // If this pointer is set, we are still in RunLD().

        __ASSERT_DEBUG( iWaitingDialog, Panic( EDiagPluginBasePanicInternal ) );

        *iIsObjectDeletedPtr = ETrue;

        iIsObjectDeletedPtr = NULL;

        delete iWaitingDialog;

        iWaitingDialog = NULL;

        }

    }

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

// CDiagPluginWaitingDialogWrapper::RunLD

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

EXPORT_C TBool CDiagPluginWaitingDialogWrapper::RunLD( TInt& aDialogResponse )

    {

    // Make sure that this function is not called twice.

    __ASSERT_ALWAYS( iIsObjectDeletedPtr == NULL,

        Panic( EDiagPluginBasePanicInvalidState ) );

    TBool isObjectDeleted = EFalse;

    iIsObjectDeletedPtr = &isObjectDeleted;

    aDialogResponse = iWaitingDialog->RunLD();

    // Do not access local variable until isObjectDeleted

    // value is checked first. "this" pointer may be invalid at this pointer.

    if ( isObjectDeleted )

        {

        // this class is already deleted. Exit immediately.

        return EFalse;

        }

    else

        {

        // iWaitingDialog->RunLD() returned with user response.

        iIsObjectDeletedPtr = NULL;

        iWaitingDialog = NULL;

        // Self-destruct as it is a "D" function.

        delete this;

        return ETrue;

        }

    }

// End of File