1 /*

     2 * Copyright (c) 2004 - 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:  Call control

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CVTCTLCALLCONTROL_H

    21 #define CVTCTLCALLCONTROL_H

    22 

    23 // INCLUDES

    24 #include <e32base.h>

    25 #include "MVtCtlCallControl.h"

    26 #include "MVtCtlCallStatusObserver.h"

    27 #include <etelmm.h>

    28 

    29 // FORWARD DECLARATIONS

    30 class MVtCtlEventObserver;

    31 class CVtCtlSessionContainer;

    32 

    33 // CLASS DECLARATION

    34 

    35 /**

    36 *  Call control implementation.

    37 *

    38 *  @lib CSCallCtrl.lib

    39 *  @since 2.6

    40 */

    41 NONSHARABLE_CLASS( CVtCtlCallControl ) : 

    42     public CBase, 

    43     public MVtCtlCallControl,

    44     public MVtCtlCallStatusObserver

    45     {

    46     public:  // Constructors and destructor

    47         

    48         /**

    49         * Two-phased constructor.

    50         * @param aEventObserver reference to event observer

    51         * @param aCommandObserver reference to command observer

    52         * @return call control

    53         */

    54         static CVtCtlCallControl* NewL(

    55             MVtCtlEventObserver& aEventObserver );

    56         

    57         /**

    58         * Destructor.

    59         */

    60         virtual ~CVtCtlCallControl();

    61 

    62     public: // From MVtCtlCallControl

    63 

    64         /**

    65         * @see MVtCtlCallControl::GetDuration

    66         */

    67         virtual TInt GetDuration( 

    68             TVtCtlSessionId aId,

    69             TVtCtlDuration& aDuration );

    70 

    71 

    72         /**

    73         * @see MVtCtlCallControl::GetSessionInfoL

    74         */

    75         virtual void GetSessionInfoL( 

    76             TVtCtlSessionId aId,

    77             TDes8& aInfo );

    78 

    79         /**

    80         * @see MVtCtlCallControl::GetSessionState

    81         */

    82         virtual TVtCtlState GetSessionState( 

    83             TVtCtlSessionId aId ) const;

    84 

    85         /**

    86         * @see MVtCtlCallControl::GetPreviousPreviousState

    87         */

    88         virtual TVtCtlState GetPreviousPreviousState( 

    89             TVtCtlSessionId aId ) const;

    90 

    91     public: // from MVtCtlCallStatusObserver

    92 

    93         /**

    94         * @see MVtCtlCallStatusObserver::HandleCallStatusChangeL

    95         */

    96         virtual void HandleCallStatusChangeL( 

    97             TVtCtlSessionId aId,

    98             MVtCtlCallControl::TVtCtlState aStatus,

    99             MVtCtlCallControl::TVtCtlState aPreviousStatus );

   100         

   101     private:

   102 

   103         /**

   104         * C++ constructor.

   105         */

   106         CVtCtlCallControl(

   107             MVtCtlEventObserver& aEventObserver );

   108 

   109         /**

   110         * By default Symbian 2nd phase constructor is private.

   111         */

   112         void ConstructL();

   113 

   114     private:

   115 

   116         /**

   117         * Validates that data passed as descriptor is of

   118         * correct type. If not leaves KErrNotSupported.

   119         * @param aData TVtCtlType derived class represented as descriptor

   120         * @param aExtension expected type

   121         */

   122         static void ValidateDataExtensionL( 

   123             TDesC8& aData,

   124             TInt aExtension );

   125 

   126     private:    // Data

   127         

   128         // Event observer

   129         MVtCtlEventObserver&    iEventObserver;

   130 

   131         // Container for ETel sessions

   132         CVtCtlSessionContainer* iContainer;

   133     };

   134 

   135 #endif      // CVTCTLCALLCONTROL_H

   136 

   137 // End of File