1 /*

     2 * Copyright (c) 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 the License "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 AKNSLIDESTATUSNOTIFIER_H

    21 #define AKNSLIDESTATUSNOTIFIER_H

    22 

    23 #include <e32base.h>

    24 #include <e32property.h>

    25 //Grip keys

    26 #include <hwrmdomainpskeys.h>

    27 

    28 class MAknSlideStatusObserver

    29     {

    30     public:

    31     

    32    /**

    33     * Slide status notification

    34     * Called by the notifier when the Slide status value change 

    35 	*

    36     * @param aValue the new status value

    37     * @return none

    38     */

    39     virtual void SlideStatusChangedL( const TInt& aValue ) = 0;

    40     

    41     };

    42 

    43 /**

    44  *  Reacts to Slide status changes

    45  *

    46  *  Reacts to Slide status changes and notifies

    47  *  its client(s) about the status change

    48  */

    49 class CAknSlideStatusNotifier : public CActive

    50     {

    51     public:

    52     	

    53         /**

    54          * Symbian two-phase constructor

    55 	     *

    56 	     * @param a pointer to Slide status observer

    57 	     * @return a pointer to CSlideStatusNotifier instance

    58          */ 

    59         static CAknSlideStatusNotifier* NewL( MAknSlideStatusObserver* aObserver );

    60 

    61         /**

    62          * Symbian two-phase constructor leaving a pointer to the constructed 

    63          * object on the cleanup stack

    64 	     *

    65 	     * @param a pointer to Slide status observer

    66 	     * @return a pointer to CSlideStatusNotifier instance

    67          */

    68         static CAknSlideStatusNotifier* NewLC( MAknSlideStatusObserver* aObserver );

    69 

    70         /**

    71          * Default destructor

    72          */

    73         virtual ~CAknSlideStatusNotifier();

    74 

    75     protected:

    76     

    77         // From base class CActive    

    78         /**

    79          * From CActive.

    80          * Implements cancellation of an outstanding request.

    81          *

    82          * @param none

    83          */

    84         void DoCancel();

    85     

    86         /**

    87          * From CActive.

    88          * Handles an active object's request completion event

    89          *

    90          * @param none

    91          */

    92         void RunL();

    93      

    94         /**

    95          * From CActive.

    96          * Handles an active object's request error event

    97          *

    98          * @param TInt aError

    99          */

   100         TInt RunError( TInt aError );

   101  

   102 

   103     private: 

   104 

   105         /** 

   106          * C++ default constructor

   107          * 

   108          * @param none 

   109          */

   110         CAknSlideStatusNotifier();

   111 

   112         /**

   113          * Symbian second phase constructor

   114          * 

   115          * @param a pointer to Slide status observer 

   116          */

   117         void ConstructL( MAknSlideStatusObserver* aObserver );

   118 

   119 

   120     private: // Data   

   121 

   122         /**

   123          * Property handle used to read P&S variables

   124          */

   125         RProperty iProperty;

   126     

   127         /**

   128          * The observer interested in the Slide status

   129          * Not own.  

   130          */

   131         MAknSlideStatusObserver* iObserver;

   132     };

   133 

   134 #endif //AKNSLIDESTATUSNOTIFIER_H