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:  Observer interfaces to get notifications from appui and from engine

    15  *

    16 */

    17 

    18 

    19 #ifndef TSFSWOBSERVERS_H

    20 #define TSFSWOBSERVERS_H

    21 

    22 /**

    23  * Interface to get notifications from appui when window groups

    24  * have changed.

    25  */

    26 class MTsFswTaskListObserver

    27     {

    28 public:

    29     /**

    30      * Function called by AppUi to notify about possible

    31      * changes in task list

    32      */

    33     virtual void UpdateTaskList() = 0;

    34     };

    35 

    36 /**

    37  * Interface to get notifications from appui's HandleResourceChangeL.

    38  */

    39 class MTsFswResourceObserver

    40     {

    41 public:

    42     /**

    43      * Function called by AppUi to notify about resource changes.

    44      */

    45     virtual void HandleResourceChange( TInt aType ) = 0;

    46     };

    47 

    48 /**

    49  * Observer interface to get notifications from engine

    50  * when fsw content has changed.

    51  */

    52 class MTsFswEngineObserver

    53     {

    54 public:

    55     /**

    56      * Called when there is a change in the task list.

    57      */

    58     virtual void FswDataChanged() = 0;

    59 

    60     /**

    61      * Called to find out how many clients are subscribed

    62      * for fsw content change notifications.

    63      */

    64     virtual TInt FswDataListenerCount() = 0;

    65     };

    66 

    67 /**

    68  * This class is interface for CTsFsHiddenAppList

    69  * to notify about list change

    70  */

    71 class MTsFsHiddenAppListObserver

    72     {

    73 public:

    74     /**

    75      * This function is called by CTsFsHiddenAppList when list is changed.

    76      */

    77     virtual void HiddenAppListUpdated() = 0;

    78     };

    79 

    80 #endif