1 /*

     2 * Copyright (c) 2008 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:  Task monitor engine

    15  *

    16 */

    17 

    18 

    19 #ifndef TSFSWENGINE_H

    20 #define TSFSWENGINE_H

    21 

    22 #include <e32base.h>

    23 #include "tsfswentry.h"

    24 #include "tsdataobserver.h"

    25 

    26 class CTsFswDataList;

    27 

    28 

    29 /**

    30  * Engine for fast swap server.

    31  * Performs task monitoring, notifications about wg changes are

    32  * received from the appui.

    33  */

    34 NONSHARABLE_CLASS( CTsFswEngine ) : public CBase,

    35                                     public MHsDataObserver

    36 

    37     {

    38     

    39 public:

    40     /**

    41      * Creates a new instance.

    42      * @param   observer   ref to observer

    43      */

    44     static CTsFswEngine* NewL( MHsDataObserver& observer );

    45 

    46     /**

    47      * @copydoc NewL

    48      */

    49     static CTsFswEngine* NewLC( MHsDataObserver& observer );

    50 

    51     /**

    52      * Destructor.

    53      */

    54     ~CTsFswEngine();

    55 

    56     /**

    57      * Returns a reference to the current content.

    58      * @return  ref to content array

    59      */

    60     const RTsFswArray& FswDataL();

    61 

    62     /**

    63      * Set screenshot 

    64      */

    65     void SetScreenshotL(const CFbsBitmap* bitmap, UpdatePriority priority, TInt wgId);

    66     

    67     /**

    68      * Removes screenshot 

    69      */    

    70     void RemoveScreenshotL(TInt wgId);

    71 

    72 

    73 private:

    74 

    75     // from MTsFswTaskListObserver

    76     void DataChanged();

    77 

    78 

    79 

    80 private:

    81     /**

    82      * Constructor.

    83      */

    84     CTsFswEngine( MHsDataObserver& observer );

    85 

    86     /**

    87      * Performs 2nd phase construction.

    88      */

    89     void ConstructL();

    90 

    91     /**

    92      * Gets the window group list and reconstructs the fsw content.

    93      * @return   TBool   ETrue if the list has been modified

    94      */

    95     TBool CollectTasksL();

    96 

    97 private:

    98     MHsDataObserver& mObserver;

    99     CTsFswDataList* mDataList; //own

   100 

   101     };

   102 

   103 #endif