1 /*

     2 * Copyright (c) 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:  Handles system agent events*

    15 */

    16 

    17 

    18 

    19 #ifndef CAMSAEVENTACTIVE_H

    20 #define CAMSAEVENTACTIVE_H

    21 

    22 //  INCLUDES

    23 #include <saclient.h>

    24 #include <e32base.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class CCamAppController;

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * Active Object listening to events coming from System Agent

    33 * @since 2.8

    34 */

    35 

    36 class CCamSAEventActive : public CActive 

    37     {

    38     public: // Constructors and destructor

    39         /**

    40         * C++ constructor

    41         * @since 2.8

    42         * @param aController reference to CCamAppController instance

    43         * @param aSystemAgent System agent handle

    44         */

    45         CCamSAEventActive( CCamAppController& aController,

    46                             const RSystemAgent& aSystemAgent );

    47 

    48         /**

    49         * Destructor.

    50         */

    51         virtual ~CCamSAEventActive();

    52 

    53     public:

    54         /**

    55         * Issue a request to receive events from System Agent

    56         * @since 2.8

    57         */

    58         void IssueRequest();

    59 

    60     private: // Functions from base classes

    61         /**

    62         * From CActive, called when RunL() is trapped by Active Scheduler

    63         * @since 2.8

    64         * @param aError the error code trapped from RunL()

    65         * @return TInt KErrNone

    66         */

    67         TInt RunError( TInt aError );   

    68 

    69         /**

    70         * From CActive called when an event comes from System Agent

    71         * Calls HandleSAEvent in Controller to handle the event

    72         * @since 2.8

    73         */

    74         void RunL();

    75 

    76         /**

    77         * From CActive Cancel request

    78         * @since 2.8

    79         */

    80         void DoCancel();

    81 

    82     private:

    83         CCamAppController& iController;

    84         RSystemAgent iSystemAgent;

    85         TSysAgentEvent iSAEvent;

    86         TBool iRequestIssued;

    87     };

    88 

    89 #endif  // CAMSAEVENTACTIVE_H   

    90             

    91 // End of File