1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 #ifndef ATEXTENSIONPLUGINOBSERVER_H

    20 #define ATEXTENSIONPLUGINOBSERVER_H

    21 

    22 #include <ecom/ecom.h>

    23 

    24 class CATExtPluginBase;

    25 

    26 /**

    27 * The interface for AT Extension Plugin to interact with AG.

    28 */

    29 class MATExtPluginObserver

    30     {

    31 public:

    32 

    33     /** 

    34     * Call by extension plugins when there is an unsolicited result code 

    35     * should be sent to target headset.

    36     * 

    37     * Each AT Extension Plugin is responsible to format

    38     * result codes properly, e.g. in BT HFP case, the

    39     * format should be <cr><lf><result code><cr><lf>

    40     * 

    41     * @param aAT the unsolicited result code to be sent.

    42     */

    43     virtual TInt SendUnsolicitedResult(CATExtPluginBase& aPlugin, const TDesC8& aAT) = 0;

    44 

    45     /** 

    46     * Called by Extension Plugins to inform AG that a command

    47     * handling has been completed or rejected.

    48     *

    49     * @return KErrNotSupported if the AT Extension Plugin doesn’t

    50     *         support the command passed in CATExtPluginBase::HandleCommand();

    51     *         KErrNone otherwise. No other error code is allowed.

    52     */

    53     virtual void HandleCommandCompleted(CATExtPluginBase& aPlugin, TInt aErr) = 0;

    54 

    55     /**

    56     * Called by the destructor of CATExtPluginBase.

    57     * A concrete service provider implementation should not touch this.

    58     *

    59     * @param aATExt the reference of the service provider.

    60     */

    61     virtual void ATExtPluginClosed(CATExtPluginBase& aPlugin) = 0;

    62     

    63     };

    64 

    65 #endif