1 /*

     2 * Copyright (c) 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:   Contains CNcdParentOfTransparentNode class

    15 *

    16 */

    17 

    18 

    19 #ifndef NCDPARENTOFTRANSPARENTNODE_H

    20 #define NCDPARENTOFTRANSPARENTNODE_H

    21 

    22 #include "ncdnodefolder.h"

    23 

    24 class CNcdNodeManager;

    25 class CNcdNodeIdentifier;

    26 

    27 

    28 class CNcdParentOfTransparentNode : public CNcdNodeFolder

    29     {

    30 public:

    31     /**

    32      * Destructor.

    33      */

    34     virtual ~CNcdParentOfTransparentNode();

    35 

    36 public: //New functions

    37 

    38     /**

    39      * Checks whether a transparent child has been expired.

    40      *

    41      * @return ETrue if one of the children is expired/uninitialized or missing.

    42      */ 

    43     TBool IsTransparentChildExpiredL() const;

    44 

    45 public: // CCatalogsCommunicable

    46 

    47     /**

    48      * @see CCatalogsCommunicable::ReceiveMessage

    49      */

    50     virtual void ReceiveMessage( MCatalogsBaseMessage* aMessage,

    51                                  TInt aFunctionNumber );

    52 

    53 public: // CNcdNode

    54 

    55     /**

    56      * @see CNcdNodeFolder::ExternalizeL

    57      */

    58     virtual void ExternalizeL( RWriteStream& aStream );

    59 

    60 

    61     /**

    62      * @see CNcdNodeFolder::InternalizeL

    63      */

    64     virtual void InternalizeL( RReadStream& aStream );

    65         

    66 

    67 protected:

    68 

    69     /**

    70      * @see CNcdNodeFolder::CNcdNodeFolder

    71      */

    72     CNcdParentOfTransparentNode( CNcdNodeManager& aNodeManager,

    73                                  NcdNodeClassIds::TNcdNodeClassId aNodeClassId = NcdNodeClassIds::ENcdRootNodeClassId );

    74     

    75     /**

    76      * @see CNcdNodeFolder::ConstructL

    77      */

    78     void ConstructL( const CNcdNodeIdentifier& aIdentifier );

    79 

    80 

    81     /** 

    82      * @see CNcdNode::ExternalizeDataForRequestL

    83      */

    84     virtual void ExternalizeDataForRequestL( RWriteStream& aStream ) const;    

    85 

    86 

    87     /**

    88      * This function replaces transparent folder by their children

    89      * when the child array is sent for the proxy.

    90      *

    91      * @see CNcdNodeFolder::ExternalizeChildArrayForRequestL

    92      */

    93     virtual void ExternalizeChildArrayForRequestL( RWriteStream& aStream ) const;

    94     

    95     /**

    96      * Checks whether a transparent child has been expired, writes the answer to the message and

    97      * completes it.

    98      */ 

    99     void IsTransparentChildExpiredL( MCatalogsBaseMessage& aMessage ) const;

   100     

   101 private:

   102 

   103     // Prevent these if not implemented    

   104     CNcdParentOfTransparentNode( const CNcdParentOfTransparentNode& aObject );

   105     CNcdParentOfTransparentNode& operator =( const CNcdParentOfTransparentNode& aObject );    

   106     

   107     

   108 private: // data

   109 

   110     };

   111 

   112 #endif // NCDPARENTOFTRANSPARENTNODE_H