1 /*

     2 * Copyright (c) 2006-2006 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:   ?description

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef IAD_UPDATE_NODE_HANDLER_OBSERVER_H

    21 #define IAD_UPDATE_NODE_HANDLER_OBSERVER_H

    22 

    23 

    24 #include <e32base.h>

    25 

    26 

    27 class MNcdNode;

    28 

    29 

    30 class MIAUpdateNodeHandlerObserver

    31 {

    32 public:

    33 

    34     /**

    35      * Node load of the node is completed successfully and data of the node

    36      * is updated.

    37      *

    38      * @param aNode The node whose data is updated.

    39      * @param aInstalling indicates if the node is being installed (only used by content handler)

    40      */

    41     virtual void NodeUpdated( MNcdNode* aNode, TBool aInstalling = EFalse ) = 0;

    42     

    43     /**

    44      * Node load of a parent node is completed.

    45      *

    46      * @param aNode The parent node which is loaded.

    47      * @param aError The completion code. KErrNone if the loading

    48      * process has been completed successfully. Otherwise some

    49      * of the system wide error codes.

    50      */

    51     virtual void ParentNodeLoadComplete( MNcdNode* aNode, TInt aError ) = 0;

    52     

    53     /**

    54      * All node loads started by this observer are completed.

    55      */

    56     virtual void NodeLoadsComplete() = 0;

    57     

    58     /**

    59      * All structure loads started by this observer are completed.

    60      *

    61      * @param aError Completion code:

    62      *   - KErrNone if strcuture loads was completed successfully.

    63      *   - KErrCancel if the structure load is canceled.

    64      *   - Otherwise some of the system wide error codes.

    65      *     NOTE: If a structure load operation fails all ongoing structure

    66      *     load operations started by this observer are canceled.

    67      */

    68     virtual void StructureLoadsComplete( TInt aError ) = 0;

    69     

    70     /**

    71      * Child node load has failed.

    72      *

    73      * @param aError Error code.

    74      */

    75     virtual void NotifyNodeLoadError( TInt aError ) = 0;

    76 

    77 

    78 protected:

    79 

    80     /**

    81      * Protected destructor to prevent unwanted deletion.

    82      * The object can be deleted only through the inherited

    83      * classes.

    84      */

    85     virtual ~MIAUpdateNodeHandlerObserver() { }

    86 

    87 };

    88 

    89 #endif // IAD_UPDATE_NODE_HANDLER_OBSERVER_H

    90