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:  Observer for installation changes.

    15 *

    16 */

    17 

    18 

    19 #ifndef C_AKNSSRVFILEOBSERVER_H

    20 #define C_AKNSSRVFILEOBSERVER_H

    21 

    22 //  INCLUDES

    23 #include <e32base.h>

    24 #include <f32file.h>

    25 

    26 // CLASS DECLARATIONS

    27 

    28 /**

    29 *  And callback interface class for listening file server when new skin

    30 *  packages are installed.

    31 *  @since 2.6

    32 */

    33 NONSHARABLE_CLASS(MAknsSrvFileObserver)

    34     {

    35     public:

    36         virtual void NewSkinPackagesInstalled() = 0;

    37         virtual void WallpaperLost() = 0;

    38         virtual void SlideSetModifiedL() = 0;

    39     };

    40 

    41 // Defines type of observer.

    42 enum TAknsSrvFileSrvObserverType

    43     {

    44     EAknsSrvNotDefined,

    45     EAknsSrvDirObserver, // not used

    46     EAknsSrvFileObsWallpaper, // not used

    47     // Observer for slide set wallpaper ini-file.

    48     EAknsSrvFileObsSlidesetWallpaper,

    49     };

    50 

    51 /**

    52 *  An active object notification class for listening file server events

    53 *  when new skins are installed to the system.

    54 *

    55 *  @since 2.6

    56 */

    57 NONSHARABLE_CLASS(CAknsSrvFileObserver) : public CActive

    58     {

    59     public:

    60         /**

    61         * Two-phased constructor.

    62         */

    63         static CAknsSrvFileObserver* NewL(MAknsSrvFileObserver* aObserver);

    64         static CAknsSrvFileObserver* NewL(MAknsSrvFileObserver* aObserver,

    65                                           const TDesC& aFilename);

    66         /**

    67         * Creates new instance of CAknsSrvFileObserver.

    68         * @param aObserver observer.

    69         * @param aFilename file to observer

    70         * @param aObserverType type of observer -

    71         *        see TAknsSrvFileSrvObserverType enum for types.

    72         * @param aFilename filename to be observed.

    73         */

    74         static CAknsSrvFileObserver* NewL( MAknsSrvFileObserver* aObserver,

    75                                            TAknsSrvFileSrvObserverType aObserverType,

    76                                            const TDesC& aFilename );

    77         /**

    78         * Destructor.

    79         */

    80         ~CAknsSrvFileObserver();

    81 

    82         void IssueRequest();

    83     public: // From CActive

    84 

    85         void RunL();

    86         void DoCancel();

    87     private: // Construction

    88 

    89         /**

    90         * C++ constructor.

    91         */

    92         CAknsSrvFileObserver(MAknsSrvFileObserver* aObserver);

    93 

    94         /**

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

    96         */

    97         void ConstructL();

    98     private:

    99         RFs iFsSession;

   100         MAknsSrvFileObserver* iObserver;

   101         HBufC* iFilename;

   102         // Type of observer - see TAknsSrvFileSrvObserverType.

   103         TAknsSrvFileSrvObserverType iType;

   104     };

   105 

   106 #endif    // C_AKNSSRVFILEOBSERVER_H

   107 

   108 // End of File