1 /*

     2 * Copyright (c) 2002-2006 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 *     CVRUSBStateHanlder declaration

    16 *     

    17 *

    18 */

    19 

    20 

    21 #ifndef VRUSBSTATEHANLDER_H

    22 #define VRUSBSTATEHANLDER_H

    23 

    24 #include <e32base.h>	// For CActive, link against: euser.lib

    25 #include <e32std.h>		// For RTimer, link against: euser.lib

    26 #include <e32property.h> 

    27 

    28 //#include "DummyUSBState.h" // for dummy testing

    29 

    30 class MVRUSBStateObserver

    31     {

    32 public:

    33     // Constructors and destructor

    34 

    35     virtual TInt HandleUsbPlugInL() = 0;

    36     virtual TInt HandleUsbPlugOutL() = 0;

    37 

    38     };

    39 

    40 class CVRUSBStateHanlder : public CActive

    41     {

    42 public:

    43     // Cancel and destroy

    44     ~CVRUSBStateHanlder();

    45 

    46     IMPORT_C static CVRUSBStateHanlder* NewL(MVRUSBStateObserver* aObserver);

    47 

    48 public:

    49 

    50     IMPORT_C static TBool IsUsbActive();

    51 

    52 private:

    53     // C++ constructor

    54     CVRUSBStateHanlder(MVRUSBStateObserver* aObserver);

    55 

    56     // Second-phase constructor

    57     void ConstructL();

    58 

    59 private:

    60     // From CActive

    61     // Handle completion

    62     void RunL();

    63 

    64     // How to cancel me

    65     void DoCancel();

    66 

    67     // Override to handle leaves from RunL(). Default implementation causes

    68     // the active scheduler to panic.

    69     TInt RunError(TInt aError);

    70 

    71     void StartL();

    72 

    73 private:

    74 #ifdef DUMMY_USB_TESTING

    75     RTimer iTimer; // Provides async timing service, for dummy testing

    76     TInt isUSBActive;

    77 #else

    78     RProperty iProperty;

    79 #endif

    80     MVRUSBStateObserver* iObserver;    

    81     enum TUSBConnectionStatus 

    82         { 

    83         EStateUninitialized, 

    84         EStateConnected, 

    85         EStateDisConnected

    86         }; 

    87     TUSBConnectionStatus iConnectionStatus;

    88     };

    89 

    90 #endif // VRUSBSTATEHANLDER_H