1 /*

     2 * Copyright (c) 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:  Monitors USB events

    15 *

    16 */

    17 

    18 

    19 #ifndef CMPXCONNECTIONEVENTHANDLER_H

    20 #define CMPXCONNECTIONEVENTHANDLER_H

    21 

    22 #include <usbman.h>

    23 #include <mpxpskeyobserver.h>

    24 #include "mpxsystemeventobserver.h"

    25 

    26 class CMPXPSKeyWatcher;

    27 

    28 /**

    29  *  USB Monitoring class

    30  *

    31  *  @lib mpxharvesterserver.exe

    32  *  @since S60 3.0

    33  */

    34 NONSHARABLE_CLASS( CMPXConnectionEventHandler ) : public CActive,

    35                                            public MMPXPSKeyObserver

    36     {

    37 public:

    38 

    39     /**

    40     * Two-phase constructor

    41     * @param aObserver observer to the event handler

    42     */

    43     static CMPXConnectionEventHandler* NewL( MMPXSystemEventObserver& aObserver );

    44 

    45     /**

    46     * Two-phase constructor

    47     * @param aObserver observer to the event handler

    48     */

    49     static CMPXConnectionEventHandler* NewLC( MMPXSystemEventObserver& aObserver );

    50 

    51     /**

    52     * Virtual destructor

    53     */

    54     virtual ~CMPXConnectionEventHandler();

    55 

    56 public:

    57 

    58     /**

    59     * Polls for the current monitor status

    60     * If an event is happening, it will callback the observer of the event

    61     */

    62     void PollStatus();

    63 

    64 protected: // From Base Class

    65 

    66     /**

    67     * From CActive

    68     */

    69     void RunL();

    70     void DoCancel();

    71 

    72     /**

    73     * From MMPXPSKeyObserver

    74     */

    75     void HandlePSEvent( TUid aUid, TInt aKey );

    76 

    77 private: // New Methods

    78 

    79     /**

    80     * Handle the PS Key event

    81     * @param aUid UID of the key

    82     * @param aKey ID of the key

    83     */

    84     void DoHandlePSEventL( TUid aUid, TInt aKey );

    85 

    86     void DoMSStartEventL();

    87     void DoMTPStartEventL();

    88     void DoMTPNotActiveEventL();

    89     

    90     /**

    91      * Connect to usbman.

    92      * If error, default iDeviceState to EUsbDeviceStateConfigured so this would not

    93      * block usb event mode change.

    94      */

    95     void ConnectUsbMan();

    96 

    97 private:

    98 

    99     /**

   100     *  C++ constructor

   101     */

   102     CMPXConnectionEventHandler( MMPXSystemEventObserver& aObserver );

   103 

   104     /*

   105     * Second phased constructor

   106     */

   107     void ConstructL();

   108 

   109 private: // data

   110     

   111     enum TMPXConnectionState

   112         {

   113         EMPXConnectionNone,

   114         EMPXConnectionMassStorage,

   115         EMPXConnectionMTPIdle,

   116         EMPXConnectionMTPActive

   117         };

   118 

   119     CMPXPSKeyWatcher*  iUSBKeyWatcher;  // PS key watcher for USB PS key

   120     CMPXPSKeyWatcher*  iMTPKeyWatcher; // PS key watcher for MTP PS key

   121 

   122     /*

   123     * Observer interface to callback to an observer

   124     */

   125     MMPXSystemEventObserver& iObserver;

   126     TInt iState;

   127     

   128     RUsb            iUsbMan;

   129     TUsbDeviceState iDeviceState;

   130     TBool           iUsbManConnected;

   131     };

   132 

   133 #endif // CMPXCONNECTIONEVENTHANDLER_H