1 /*

     2 * Copyright (c) 2005 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 

    18 

    19 

    20 #ifndef CMCENATSTATE_H

    21 #define CMCENATSTATE_H

    22 

    23 #include <e32base.h>

    24 

    25 class TMceNatStateTransitionEvent;

    26 

    27 //state indexes

    28 typedef TUint TMceNatStateIndex;

    29 

    30 const TMceNatStateIndex KMceNatStateInitializing = 0;

    31 const TMceNatStateIndex KMceNatStateIdle = 1;

    32 const TMceNatStateIndex KMceNatStateCreateOffer = 2;

    33 const TMceNatStateIndex KMceNatStateCreateAnswer = 3;

    34 const TMceNatStateIndex KMceNatStateDecodeOffer = 4;

    35 const TMceNatStateIndex KMceNatStateDecodeAnswer = 5;

    36 const TMceNatStateIndex KMceNatStateWait = 6;

    37 const TMceNatStateIndex KMceNatStateConnected = 7;

    38 const TMceNatStateIndex KMceNatStateCreateOfferRequested = 8;

    39 

    40 /**

    41 *  MCE SIP state transition handler

    42 *

    43 *  @lib 

    44 *  @since

    45 */

    46 class MMceNatStateTransitionHandler

    47 	{

    48 

    49 public:

    50 

    51 	/**

    52 	* Hanldes state transition message and executes

    53 	* necessary actions

    54 	* @param aEvent atransition event

    55 	*/

    56     virtual void EntryL( TMceNatStateTransitionEvent& aEvent ) = 0;

    57 

    58 	/**

    59 	* Resolves state to which current state exit

    60 	* @param aEvent atransition event

    61 	*/

    62     virtual void ExitL( TMceNatStateTransitionEvent& aEvent ) = 0;

    63 	

    64 	};

    65 

    66 /**

    67 *  MCE SIP state machine

    68 *

    69 *  @lib 

    70 *  @since

    71 */

    72 class CMceNatState : public CBase

    73 	{

    74 	

    75 public: // Constructors and destructor

    76     

    77 	/**

    78 	* Destructor.

    79 	*/

    80 	virtual ~CMceNatState();

    81 

    82 

    83 public: // New functions

    84 

    85 	/**

    86 	* Checks if state accepts event

    87 	* @param aEvent atransition event

    88 	*/

    89     virtual TBool Accept( TMceNatStateTransitionEvent& aEvent ) = 0;

    90     

    91 	/**

    92 	* Returns transition handler

    93 	* @return transition handler

    94 	*/

    95     virtual MMceNatStateTransitionHandler& TransitionHandler() = 0;

    96 

    97 

    98 protected: // Constructors and destructor

    99 

   100 	/**

   101 	* Constructor

   102 	*/

   103     CMceNatState();

   104 

   105 	};

   106 

   107 #endif // CMCENATSTATE_H

   108 

   109 // End of File