1 /*

     2 * Copyright (c) 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:  Functional implentation of key event service.

    15 *

    16 */

    17 

    18 

    19 #ifndef CKEYEVENTHANDLER_H

    20 #define CKEYEVENTHANDLER_H

    21 

    22 

    23 // INCLUDES

    24 #include <HTIServicePluginInterface.h>

    25 #include <w32std.h>

    26 

    27 // CONSTANTS

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 *  Functional implentation of key event service.

    33 */

    34 class CKeyEventHandler : public CActive

    35     {

    36 public:

    37 

    38     static CKeyEventHandler* NewL();

    39 

    40     // Interface implementation

    41     void ProcessMessageL( const TDesC8& aMessage,

    42         THtiMessagePriority aPriority );

    43 

    44     virtual ~CKeyEventHandler();

    45 

    46     void SetDispatcher( MHtiDispatcher* aDispatcher );

    47 

    48     enum TError

    49         {

    50         EMissingCommand          = 0x01,

    51         EUnrecognizedCommand     = 0x02,

    52         ENotReadyCommand         = 0x03,

    53         EInvalidScancode         = 0x80,

    54         EEmptyUnicodeCharArray   = 0x90,

    55         EInvalidUnicodeCharArray = 0x91

    56         };

    57 

    58     enum TCommand

    59         {

    60         EPressKey         = 0x01,

    61         EKeyDown          = 0x02,

    62         EKeyUp            = 0x03,

    63         ETypeText         = 0x04,

    64         ELongKeyPress     = 0x05,

    65         ETypeTextPassword = 0x06,

    66         EPressKeySequence = 0x07,

    67         EResultOk = 0xFF // only for response message

    68         };

    69 

    70 protected:

    71 

    72     void RunL();

    73     TInt RunError(TInt aError);

    74     void DoCancel();

    75 

    76 private:

    77 

    78     CKeyEventHandler();

    79     void ConstructL();

    80 

    81 private: // helpers

    82 

    83     void HandleTypeTextFuncL( const TDesC8& aUnicodeChars );

    84     void HandleKeyboardFuncL( const TDesC8& aData );

    85     void HandleLongKeyPressFuncL( const TDesC8& aData );

    86     void HandlePressKeySequenceFuncL( const TDesC8& aData );

    87 

    88     void SendOkMsgL();

    89     void SendErrorMessageL( TInt aError, const TDesC8& aDescription );

    90 

    91     void TypeTextWithDelay( TInt aNextIndex );

    92     void SimulateKeyEventL( const TDesC8& aUnicodeChars, TInt aIndex );

    93     void PressKeySequenceKeyL();

    94 

    95     void KeyUp( TUint aCode );

    96     void KeyDown( TUint aCode );

    97 

    98 private:

    99 

   100     RWsSession iWsSession;

   101     MHtiDispatcher* iDispatcher; // referenced

   102 

   103     // Typetext specialities:

   104     RTimer  iTimer;

   105     TInt    iFocusedWindowGroup;

   106     HBufC8* iUnicodeChars;

   107     TInt    iUnicodeCharIndex;

   108 

   109     TBool                           iReady;

   110     TUint8                          iCommand;

   111     TUint                           iHoldingScanCode;

   112     TTimeIntervalMicroSeconds32     iKeySequenceHoldTime;

   113     TTimeIntervalMicroSeconds32     iKeySequenceInterval;

   114     TBool                           iHoldingKey;

   115     };

   116 

   117 #endif // CKEYEVENTHANDLER_H