/*

* Copyright (c) 2005-2007 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:  Phonebook 2 Group UI Extension delete group command.

*

*/

#ifndef CPGUDELETEGROUPCMD_H

#define CPGUDELETEGROUPCMD_H

// INCLUDES

#include <e32base.h>

#include <MPbk2Command.h>

#include <MPbk2ProcessDecorator.h>

#include <MVPbkSingleContactOperationObserver.h>

#include <MVPbkBatchOperationObserver.h>

// FORWARD DECLARATIONS

class CAknProgressDialog;

class CEikProgressInfo;

class MPbk2ContactNameFormatter;

class MPbk2ContactUiControl;

class CVPbkContactManager;

class MVPbkContactLink;

class MVPbkContactLinkArray;

class MVPbkStoreContact;

class MVPbkContactGroup;

// CLASS DECLARATION

/**

 * Phonebook 2 Group UI Extension delete group command.

 */

class CPguDeleteGroupCmd : 

        public CActive,

        public MPbk2Command,

        private MVPbkSingleContactOperationObserver,

        private MVPbkBatchOperationObserver,

        private MPbk2ProcessDecoratorObserver

    {

    public: // Construction and destruction

        /**

         * Creates a new instance of this class.

         *

         * @param aUiControl    Contact UI control.

         * @return  A new instance of this class.

         */

        static CPguDeleteGroupCmd* NewL(

                MPbk2ContactUiControl& aUiControl );

        /**

         * Destructor.

         */

        ~CPguDeleteGroupCmd();

    public: // From MPbk2Command

        void ExecuteLD();

        void AddObserver( MPbk2CommandObserver& aObserver );

        void ResetUiControl(MPbk2ContactUiControl& aUiControl);

    private: // From CActive

        void DoCancel();

        void RunL();

        TInt RunError( TInt aError );

    private: // From MVPbkSingleContactOperationObserver

        void VPbkSingleContactOperationComplete(

                MVPbkContactOperationBase& aOperation,

                MVPbkStoreContact* aContact );

        void VPbkSingleContactOperationFailed(

                MVPbkContactOperationBase& aOperation,

                TInt aError );

    private: // From MVPbkBatchOperationObserver

        void StepComplete(

                MVPbkContactOperationBase& aOperation,

                TInt aStepSize );

        TBool StepFailed(

                MVPbkContactOperationBase& aOperation,

                TInt aStepSize,

                TInt aError );

        void OperationComplete(

                MVPbkContactOperationBase& aOperation );

    private: // From MPbk2ProcessDecoratorObserver

        void ProcessDismissed(

                TInt aCancelCode );

    private: // Data structures

        /// Process states

        enum TProcessState

            {

            ERetrieving,

            EConfirming,

            EStarting,

            EDeleting,

            EStopping,

            ECanceling

            };

    private: // Implementation

        CPguDeleteGroupCmd(

                MPbk2ContactUiControl& aUiControl );

        void ConstructL();

        void RetrieveContactL(

                const MVPbkContactLink& aContactLink );

        TInt FilterErrors(

                TInt aErrorCode );

        void IssueRequest();

        void IssueStopRequest(

                TProcessState aState );

        void ConfirmDeletionL();

        void DoDeleteContactsL();

    private:  // Data

        /// Ref: UI control

        MPbk2ContactUiControl* iUiControl;

        /// Own: Decorator for the process

        MPbk2ProcessDecorator* iDecorator;

        /// Own: Links to the contacts to delete

        MVPbkContactLinkArray* iContactLinkArray;

        /// Own: Retrieve operation

        MVPbkContactOperationBase* iRetrieveOperation;

        /// Own: Delete operation

        MVPbkContactOperationBase* iDeleteOperation;

        /// Own: The group to delete

        MVPbkContactGroup* iContactGroup;

        /// Ref: Command observer

        MPbk2CommandObserver* iCommandObserver;

        /// Own: Current state of process

        TProcessState iState;

    };

#endif // CPGUDELETEGROUPCMD_H

// End of File