/*

* Copyright (c) 2007-2007 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:  Takes a command and executes it if predefined

*                condition is met

*

*/

// INCLUDE FILES

#include "cpbk2commandactivator.h"

// pbk2

#include <MPbk2ContactUiControl.h>

#include "cpbk2storestatechecker.h"

// vpbk

#include <MVPbkStoreContact.h>

// system 

#include <coemain.h>

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

namespace

    {

#ifdef _DEBUG

enum TPanicCode

    {

    EPanicObserverNotSet = 1

    };

void Panic(TPanicCode aReason)

    {

    _LIT( KPanicText, "CPbk2CommandActivator" );

    User::Panic(KPanicText,aReason);

    }

#endif // _DEBUG

    }

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

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

// CPbk2CommandActivator::CPbk2CommandActivator

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CPbk2CommandActivator::CPbk2CommandActivator(

        MPbk2Command* aCommand,

        const MPbk2ContactUiControl& aUiControl ) :  

    iCommand( aCommand ),

    iUiControl( aUiControl )

    {

    // Do nothing

    }

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

// CPbk2CommandActivator::CPbk2CommandActivator

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

//

EXPORT_C CPbk2CommandActivator::~CPbk2CommandActivator()

    {

    delete iCommand;

    delete iStoreStateChecker;

    }

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

// CPbk2CommandActivator::NewL

// Two-phased constructor.

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

//

EXPORT_C CPbk2CommandActivator* CPbk2CommandActivator::NewL( 

        MPbk2Command* aCommand,

        const MPbk2ContactUiControl& aUiControl )

    {

    return new( ELeave ) CPbk2CommandActivator

        ( aCommand, aUiControl );

    }

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

// CPbk2CommandActivator::ExecuteLD

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

//

void CPbk2CommandActivator::ExecuteLD()

    {

    __ASSERT_DEBUG( iObserver, Panic( EPanicObserverNotSet ) );

    const MVPbkStoreContact* storeContact = iUiControl.FocusedStoreContact();

    if ( storeContact )

        {

        // Check is store available of current contact

        // and if it is not, show note and skip command execution

        MVPbkContactStore& contactStore = storeContact->ParentStore();

        delete iStoreStateChecker;

        iStoreStateChecker = NULL;

        iStoreStateChecker = 

            CPbk2StoreStateChecker::NewL( contactStore, *this );

        }

    else

        {

        iCommand->ExecuteLD();

        }

    }

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

// CPbk2CommandActivator::ResetUiControl

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

//

void CPbk2CommandActivator::ResetUiControl(

        MPbk2ContactUiControl& aUiControl)

    {

    iCommand->ResetUiControl( aUiControl );

    }

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

// CPbk2CommandActivator::AddObserver

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

//

void CPbk2CommandActivator::AddObserver( MPbk2CommandObserver& aObserver )

    {

    iObserver = &aObserver;

    iCommand->AddObserver( *this );

    }

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

// CPbk2CommandActivator::StoreState

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

//

void CPbk2CommandActivator::StoreState( 

        MPbk2StoreStateCheckerObserver::TState aState )

    {

    if ( aState == MPbk2StoreStateCheckerObserver::EStoreAvailable )

        {

        TRAPD( err, iCommand->ExecuteLD() );

        if ( err != KErrNone )

            {

            CCoeEnv::Static()->HandleError( err );

            if ( iObserver )

                {

                iObserver->CommandFinished( *this );

                }

            else

                {

                // No observer set so ExecuteLD is a real one here

                iCommand = NULL;

                delete this;

                }

            }

        }

    else

        {

        // It is not fatal error if information note is not shown

        TRAP_IGNORE( iStoreStateChecker->ShowUnavailableNoteL() );

        if ( iObserver )

            {

            iObserver->CommandFinished( *this );

            }

        else

            {

            // No observer so this means that command should destroy itself

            // without help of command handler

            delete this;        

            }

        }

    }

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

// CPbk2CommandActivator::CommandFinished

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

//

void CPbk2CommandActivator::CommandFinished( const MPbk2Command& /*aCommand*/ )

    {

    // If this is called, it means that observer is set

    iObserver->CommandFinished( *this );

    }

//  End of File