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 #ifndef TAVSRCOPERATIONS_H

    18 #define TAVSRCOPERATIONS_H

    19 

    20 #include <e32def.h>

    21 #include <e32cmn.h>

    22 #include <e32base.h>

    23 #include <e32keys.h>

    24 

    25 // all key operations available for user input

    26 static const TInt KTavsrcOpConnect = ']';

    27 static const TInt KTavsrcOpCancel = '[';

    28 static const TInt KTavsrcOpDiscoverSEPs = 'd';

    29 static const TInt KTavsrcOpCreateBearers = '1';

    30 static const TInt KTavsrcOpCloseBearers = '!';

    31 static const TInt KTavsrcOpContentProtection = 'p';

    32 static const TInt KTavsrcOpGetCapabilities = 'g';

    33 static const TInt KTavsrcOpStartStreams = 's';

    34 static const TInt KTavsrcOpSuspendStreams = 'e';

    35 static const TInt KTavsrcOpEchoStorm = 'E';

    36 static const TInt KTavsrcOpAbort = 'a';

    37 static const TInt KTavsrcOpStream = '@';

    38 static const TInt KTavsrcOpStreamFaster = '+';

    39 static const TInt KTavsrcOpStreamSlower = '-';

    40 static const TInt KTavsrcOpAutoStream = 'A';

    41 static const TInt KTavsrcOpStopStream = '\'';

    42 static const TInt KTavsrcOpRegisterSEP = 't';

    43 static const TInt KTavsrcOpRegisterMultipleSEPs = 'T';

    44 static const TInt KTavsrcOpStartSrc = 'o';

    45 static const TInt KTavsrcOpStopSrc = 'c';

    46 static const TInt KTavsrcOpDisconnectSrc = 'f';

    47 static const TInt KTavsrcOpConfigureSEP = 'x';

    48 static const TInt KTavsrcOpReconfigureSEP = 'x';

    49 static const TInt KTavsrcOpPacketDropIoctl = 'i';

    50 static const TInt KTavsrcOpVolumeUp = EKeyUpArrow;

    51 static const TInt KTavsrcOpVolumeDown = EKeyDownArrow;

    52 static const TInt KTavsrcOpBackwards = EKeyLeftArrow;

    53 static const TInt KTavsrcOpForwards = EKeyRightArrow;

    54 static const TInt KTavsrcOpPlay = '}';

    55 static const TInt KTavsrcOpStop = '{';

    56 static const TInt KTavsrcOpExit = EKeyEscape;

    57 static const TInt KTavsrcOpToggleSafeMode = 'W';

    58 

    59 // describes one operation including key to press and next possible operations

    60 class TTavsrcOperation

    61 	{

    62 public:

    63 	TTavsrcOperation(TInt aOpCode, TChar aOperation, TInt aNextOpCodes);

    64 

    65 	static TBool OperationMatchesAndAllowed(const TTavsrcOperation& aOpA, const TTavsrcOperation& aOpB);

    66 	TInt GetNextOpCodes() const;

    67 

    68 private:

    69 	// iOpCode is the internal representation of the operation and can be used in a bitmask to define

    70 	// all possible next operations 

    71 	TInt iOpCode;

    72 	

    73 	// iOperation is the external representation of the operation, i.e. the key pressed by the user defined

    74 	// above

    75 	TChar iOperation;

    76 	

    77 	// iNextOpCodes is a bitmask of all the next possible operations after this operation

    78 	TInt iNextOpCodes;

    79 	};

    80 

    81 // describes all operations and is used to only allow acceptable, as defined by GAVDP, operations

    82 // to be selected by the user. All checking of whether an operation is allowed can be disabled

    83 // by turning off safe mode.

    84 class CTavsrcOperations : public CBase

    85 	{

    86 public:

    87 	static CTavsrcOperations* NewL();

    88 	~CTavsrcOperations();

    89 

    90 	TBool IsOperationAllowed(TChar aOperation);

    91 	TInt BeginOperation(TChar aOperation);

    92 	void EndOperation(TChar aOperation, TInt aError);

    93 

    94 	TBool SafeMode();

    95 	void SetSafeMode(TBool aSafeMode);

    96 	

    97 private:

    98 	CTavsrcOperations();

    99 	void ConstructL();

   100 

   101 	TInt GetAllowedOperationIndex(TChar aOperation, TInt aAllowedNextOpcodes);

   102 	TBool IsOperationAllowed(TInt aIndex);

   103 	

   104 private:

   105 	TInt iLastOperationIndex;

   106 	TInt iPendingOperationIndex;

   107 

   108 	TBool iSafeMode;

   109 	

   110 	RArray<TTavsrcOperation> iOperations;

   111 	};

   112 

   113 #endif // TAVSRCOPERATIONS_H