1 /*

     2 * Copyright (c) 2007-2009 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 

    20 #ifndef HWRMFMTXTESTOBSERVER_H

    21 #define HWRMFMTXTESTOBSERVER_H

    22 

    23 #include <e32property.h>

    24 #include "hwrmfmtxwatcherplugin.h"

    25 #include "hwrmfmtxconnobserver.h"

    26 

    27 /**

    28 * Active object for obtaining notification of changes in connections.

    29 *

    30 */

    31 NONSHARABLE_CLASS(CHWRMFmtxTestObserver) : public CActive, 

    32                                            public MHWRMFmtxConnObserver

    33     {

    34 public:

    35     /**

    36     * This is a two-phase constructor method that is used to create a new

    37     * instance for listening to the changes.

    38     *

    39     * @param aObserver A reference to an observer instance.

    40     * @return A pointer to a new instance of the CHWRMFmtxUsbObserver class.

    41     *

    42     * @leave One of the Symbian OS error codes.

    43     */

    44     static CHWRMFmtxTestObserver* NewL( MHWRMFmtxConnObserverCallback& aObserver );

    45     

    46     /**

    47     * Destructor.

    48     */

    49     ~CHWRMFmtxTestObserver();

    50     

    51     // From MHWRMFmtxConnObserver

    52     TBool GetStatusL();

    53     void StartObservingL();

    54     void StopObserving();

    55 

    56 private:

    57 

    58     /**

    59     * Constructor.

    60     *

    61     * @param aObserver A reference to an observer instance.

    62     */

    63     CHWRMFmtxTestObserver( MHWRMFmtxConnObserverCallback& aObserver );

    64     

    65     /**

    66     * By default Symbian OS constructor is private.

    67     */

    68     void ConstructL();

    69     

    70     /**

    71     * Orders notification.

    72     */

    73     void OrderNotification();

    74 

    75 protected:

    76 

    77     // from CActive

    78     void RunL();

    79     void DoCancel();

    80 

    81 private:

    82 

    83     /**

    84     * Handle to test PubSub key.

    85     */    

    86     RProperty iTestPubSubKey;

    87 

    88     /**

    89     * Response callback pointer.

    90     */    

    91     MHWRMFmtxConnObserverCallback& iCallback;

    92     

    93     /**

    94     * Stores USB connection status, ETrue if connected.

    95     * Used for filtering out excess USB configuration change notifications.

    96     */    

    97     TBool iConnected;

    98     };

    99 

   100 

   101 #endif      // HWRMFMTXTESTOBSERVER_H

   102             

   103 // End of File