contextframework/cfw/src/cfoperationpluginservices/cfoperationnode.cpp
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     1 /*
       
     2 * Copyright (c) 2002-2007 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:  
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include "cfoperationnode.h"
       
    21 #include "cftrace.h"
       
    22 
       
    23 #include <gmxmlnode.h>
       
    24 #include <gmxmldomconstants.h>
       
    25 
       
    26 // CONSTANTS
       
    27 static const TInt KDomTreeLocationInfoSize = 64;
       
    28 static const TInt KInfoPrintExtraLen = 4;
       
    29 
       
    30 _LIT( KDebugLocationSeparator, "." );
       
    31 _LIT( KDebugLocationNameStart, "[" );
       
    32 _LIT( KDebugLocationNameEnd, "]" );
       
    33 
       
    34 // ============================ MEMBER FUNCTIONS ===============================
       
    35 
       
    36 // -----------------------------------------------------------------------------
       
    37 // CCFOperationNode::CCFOperationNode
       
    38 // C++ default constructor can NOT contain any code, that might leave.
       
    39 // -----------------------------------------------------------------------------
       
    40 //
       
    41 EXPORT_C CCFOperationNode::CCFOperationNode( MCFOperationServices& aServices,
       
    42     CCFOperationNode* aParent )
       
    43     :   iServices( aServices ),
       
    44         iParent( aParent ),
       
    45         iValue( ECFConditionUndefined )
       
    46     {
       
    47     FUNC_LOG;
       
    48     }
       
    49 
       
    50 
       
    51 // Destructor
       
    52 EXPORT_C CCFOperationNode::~CCFOperationNode()
       
    53     {
       
    54     FUNC_LOG;
       
    55 
       
    56     delete iDomTreeLocationInfo;
       
    57     }
       
    58 
       
    59 
       
    60 // -----------------------------------------------------------------------------
       
    61 // CCFOperationNode::Value
       
    62 // -----------------------------------------------------------------------------
       
    63 //
       
    64 EXPORT_C CCFOperationNode::TCFConditionValue CCFOperationNode::Value() const
       
    65     {
       
    66     FUNC_LOG;
       
    67 
       
    68     return iValue;
       
    69     }
       
    70 
       
    71 // -----------------------------------------------------------------------------
       
    72 // CCFOperationNode::InternalizeL
       
    73 // -----------------------------------------------------------------------------
       
    74 //
       
    75 EXPORT_C void CCFOperationNode::InternalizeL( RReadStream& /*aStream*/ )
       
    76     {
       
    77     FUNC_LOG;
       
    78     }
       
    79 
       
    80 // -----------------------------------------------------------------------------
       
    81 // CCFOperationNode::ExternalizeL
       
    82 // -----------------------------------------------------------------------------
       
    83 //
       
    84 EXPORT_C void CCFOperationNode::ExternalizeL( RWriteStream& /*aStream*/ )
       
    85     {
       
    86     FUNC_LOG;
       
    87     }
       
    88 
       
    89 // -----------------------------------------------------------------------------
       
    90 // CCFOperationNode::Cleanup
       
    91 // -----------------------------------------------------------------------------
       
    92 //
       
    93 EXPORT_C void CCFOperationNode::Cleanup()
       
    94 	{
       
    95 	FUNC_LOG;
       
    96 	}
       
    97 
       
    98 // -----------------------------------------------------------------------------
       
    99 // CCFOperationNode::GenerateDomTreeLocationInfoL
       
   100 // -----------------------------------------------------------------------------
       
   101 //
       
   102 EXPORT_C void CCFOperationNode::GenerateDomTreeLocationInfoL(
       
   103     CMDXMLNode& aNode )
       
   104     {
       
   105     FUNC_LOG;
       
   106 
       
   107     iDomTreeLocationInfo = HBufC::NewL( KDomTreeLocationInfoSize );
       
   108     TPtr info( iDomTreeLocationInfo->Des() );
       
   109     CMDXMLNode* domNode = &aNode;
       
   110 
       
   111     while ( domNode && domNode->NodeName() != KXMLDocumentElementNodeName )
       
   112         {
       
   113         TPtrC nodeName( domNode->NodeName() );
       
   114         TInt sequenceNumber( 1 );
       
   115         TBuf< 16 > seqNumBuffer;
       
   116 
       
   117         CMDXMLNode* prevSibling = domNode->PreviousSibling();
       
   118         while ( prevSibling )
       
   119             {
       
   120             if ( prevSibling->NodeType() != CMDXMLNode::ECommentNode )
       
   121                 {
       
   122                 ++sequenceNumber;
       
   123                 }
       
   124             prevSibling = prevSibling->PreviousSibling();
       
   125             }
       
   126         seqNumBuffer.AppendNum( sequenceNumber );
       
   127 
       
   128         TInt requiredLen = nodeName.Length() + seqNumBuffer.Length()
       
   129                 + KInfoPrintExtraLen;
       
   130         TInt freeLen = info.MaxLength() - info.Length();
       
   131         if ( requiredLen > freeLen )
       
   132             {
       
   133             iDomTreeLocationInfo = iDomTreeLocationInfo->ReAllocL(
       
   134                     info.MaxLength() + KDomTreeLocationInfoSize );
       
   135             info.Set( iDomTreeLocationInfo->Des() );
       
   136             }
       
   137 
       
   138         if ( domNode != &aNode )
       
   139             {
       
   140             info.Insert( 0, KDebugLocationSeparator );
       
   141             }
       
   142 
       
   143         info.Insert( 0, KDebugLocationNameEnd );
       
   144         info.Insert( 0, nodeName );
       
   145         info.Insert( 0, KDebugLocationNameStart );
       
   146         info.Insert( 0, KDebugLocationSeparator );
       
   147         info.Insert( 0, seqNumBuffer );
       
   148 
       
   149         domNode = domNode->ParentNode();
       
   150         }
       
   151     }
       
   152 
       
   153 // -----------------------------------------------------------------------------
       
   154 // CCFOperationNode::Extension
       
   155 // -----------------------------------------------------------------------------
       
   156 //
       
   157 EXPORT_C TAny* CCFOperationNode::Extension( const TUid& /*aUid*/ ) const
       
   158     {
       
   159     FUNC_LOG;
       
   160     
       
   161     return NULL;
       
   162     }