1 /*

     2 * Copyright (c) 2006, 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:  This class implements functions of set ptp personality, the 

    15 *                notification of the PTP printer connection and the

    16 *				 notification of the PTP printer disconnection. 

    17 *

    18 */

    19 

    20 

    21 #ifndef DPSUSBNOTIFIER_H

    22 #define DPSUSBNOTIFIER_H

    23 

    24 #include <e32base.h>

    25 #include <usbstates.h>

    26 #include "pictbridge.h"

    27 #include <usbman.h>

    28 #include <usbwatcher.h>

    29 

    30 class CDpsPtpNotifier;

    31 class CDpsConnectNotifier;

    32 class CDpsPersonalityWatcher;

    33 

    34 /**

    35 *   Class for monitoring the usb personality change and cable 

    36 *   connection/disconnectin

    37 */

    38 NONSHARABLE_CLASS(CDpsUsbNotifier) : public CActive

    39     {

    40     friend class CDpsPtpNotifier;

    41     friend class CDpsConnectNotifier;

    42     friend class CDpsPersonalityWatcher;

    43 	

    44     public:

    45         /**

    46         *   Two phase constructor

    47         *   @param aEngine the pointer to the dps engine object

    48         *   @param the CDpsUsbNotifier instance 

    49         */

    50         static CDpsUsbNotifier* NewL(CDpsEngine* aEngine);

    51 		

    52         /**

    53         *   Destructor

    54         */

    55         ~CDpsUsbNotifier();

    56 		

    57         /**

    58         *   Issues the request for printer connection notification

    59         */

    60         void WaitForPrinterNotify();

    61 		

    62         /**

    63         *   Cancels the request for printer connection notification

    64         */

    65         void CancelPrinterNotify();

    66 		

    67         /**

    68         *   Issues the request for printer connect/disconnect notification

    69         */

    70         void ConnectNotify();

    71 		

    72 		/**

    73 		*   @return TBool Checks if the PTP printer is connected

    74 		*/		

    75 	    TBool IsConfigured() const;

    76 	    

    77 	    /**

    78 	    *

    79 	    */

    80 	    TBool IsSetPrintModeIssued();

    81 	    

    82     private:

    83         /**

    84         *   Second phase constructor

    85         */

    86         void ConstructL();

    87 		

    88         /**

    89         *   Default constructor

    90         *   @param aEngine the pointer to the dps engine

    91         */

    92         CDpsUsbNotifier(CDpsEngine *aEngine);

    93 		

    94         /**

    95         *   Called by PtpNotifier to indicate a ptp printer/pc is connected

    96         */

    97         void PtpNotify(TInt aErr);

    98 		

    99 		/**

   100 		*

   101 		*/

   102 		void PersonalityChanged();

   103 		

   104         /**

   105         *   Called by ConnectNotifier to indeicate the cable disconnect

   106         */

   107         void DisconnectNotify(TUsbDeviceState aState);

   108 		

   109         /**

   110         *   Updates the current device state

   111         *   @return ETrue if OK, EFalse if failed

   112         */

   113         TInt ConnectState();

   114 		        

   115         /**

   116         *   Changes back to the previous personality       

   117         */

   118         void Rollback();

   119         

   120     private: // from CActive		

   121         /**

   122         *   @See CActive::RunL

   123         */

   124         void RunL();

   125 		

   126         /**

   127         *   @See CActive::RunError

   128         */

   129         TInt RunError(TInt aErr);

   130 		

   131         /**

   132         *   @See CActive::DoCancel

   133         */

   134         void DoCancel();

   135 		

   136     private:

   137         // not owned by this class

   138         CDpsEngine* iEngine;

   139         // owned by this class

   140         CDpsPtpNotifier* iPtpP;

   141         // owned by this class

   142         CDpsConnectNotifier* iConnectP;

   143         // owned by this class

   144         CDpsPersonalityWatcher* iPersonalityWatcher;

   145         TInt	iPersonality;

   146         TUsbDeviceState iConnectState;

   147         // indication of whether the PTP printer has connected

   148         TBool iConfigured;	

   149         CDpsEngine::TConnectionStatus iConnection;	

   150         // owned by this class

   151         RUsbWatcher iUsbW;

   152         // owned by this class

   153         RUsb    iUsbM;

   154         // if rollback to previous personality is needed when application quits

   155         TBool iRollback;

   156     };

   157 

   158 #endif