/*

* Copyright (c) 2002-2007 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:  SendData command handler

*

*/

#ifndef CSENDDATAHANDLER_H

#define CSENDDATAHANDLER_H

#include <etelsat.h>

#include "MSatSendDataObserver.h"

#include "CSatCommandHandler.h"

#include "SatSTypes.h"

#include "MSatConnectionObserver.h"

#include "MSatBIPUtils.h"

#include "MSatEventObserver.h"

class MSatUtils;

class MSatBIPDataChannel;

/**

 *  Command handler for SendData command.

 *

 *  @lib SendDataCmd.lib

 *  @since S60 v3.0

 */

class CSendDataHandler : public CSatCommandHandler,

                         public MSatSendDataObserver,

                         public MSatConnectionObserver

    {

public:

    static CSendDataHandler* NewL( MSatUtils* aUtils );

    virtual ~CSendDataHandler();

// from base class MSatCommand

    /**

     * From MSatCommand.

     * Response from the client

     *

     */

    void ClientResponse();

// from base class MSatSendDataObserver

    /**

     * From MSatSendDataObserver

     * Notification of data has been sent

     *

     * @param aError Indicates the status of data sent.

     * @param aLength Number of bytes sent

     */

    void DataSentNotification( const TInt aError,

                               const TInt aLength );

    /**

     * From MSatConnectionObserver

     * Notfication from the connection

     *

     * @param aError Indicates the status of connection

     */

    void ConnectionNotification( TInt aError );

// from base class CSatCommandHandler

    /**

     * From CSatCommandHandler

     * Overrides the default implementation.

     *

     * @param aEvent Identifies the event.

     */

    void Event( TInt aEvent );

protected:

// from base class CActive

    /**

     * From CActive

     * Cancels the usat request.

     *

     */

    void DoCancel();

// from base class CSatCommandHandler

    /**

     * From CSatCommandHandler

     * Requests the command notification.

     *

     * @param aStatus Request status to active object notification

     */

    void IssueUSATRequest( TRequestStatus& aStatus );

    /**

     * From CSatCommandHandler

     * Precheck before executing the command.

     *

     * @return Boolean indicating is this command allowed to execute.

     */

    TBool CommandAllowed();

    /**

     * From CSatCommandHandler

     * Need for ui session.

     *

     * @return Boolean indicating does this command need UI session.

     */

    TBool NeedUiSession();

    /**

     * From CSatCommandHandler

     * Called when USAT API notifies that command.

     *

     */

    void HandleCommand();

    /**

     * From CSatCommandHandler.

     * Indicates the failure of launching ui client.

     *

     */

    void UiLaunchFailed();

private:

    CSendDataHandler();

    void ConstructL();

    /**

     * Sends data

     *

     */

    void SendData();

    /**

     * Completes Terminal response and sends it

     *

     * @param aError is error code of reason

     */

    void SendTerminalResponse(

        const TInt aError = MSatBIPUtils::ESatBIPSuccess );

    /**

     * Sends notification to UI

     *

     * @return KErrNone if notification is sent successfully

     */

    TInt SendUiNotification();

private: // data

    /**

     * SendData command data

     */

    RSat::TSendDataV2 iSendDataData;

    /**

     * SendData command package

     */

    RSat::TSendDataV2Pckg iSendDataPckg;

    /**

     * SendData response data

     */

    RSat::TSendDataRspV2 iSendDataRspData;

    /**

     * SendData response package

     */

    RSat::TSendDataRspV2Pckg iSendDataRspPckg;

    /**

     * Data to UI

     */

    TSatNotificationV1 iSendDataUiData;

    /**

     * IPC Package to ui data

     */

    TSatNotificationV1Pckg iSendDataUiPckg;

    /**

     * UI Response

     */

    TSatNotificationRspV1 iSendDataUiRsp;

    /**

     * IPC Package to response

     */

    TSatNotificationRspV1Pckg iSendDataUiRspPckg;

    /**

     * Remaining space in TX buffer

     */

    TInt iFreeBuffSize;

    /**

     * Pointer to DataChannel

     */

    MSatBIPDataChannel* iDataChannel;

    /**

     * Indicates has user cancelled the action

     */

    TBool iUserCancelled;

    /**

     * Indicates does current command need UI or not

     */

    TBool iNeedUiSession;

    /**

     * Flag to signal that command has icon data

     * To be removed when icons are allowed in this command

     */

    TBool iIconCommand;

    };

#endif      // CSENDDATAHANDLER_H