contextframework/cfwplugins/PSStateSourcePlugIn/src/psstatemappertext.cpp
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     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:  CPSStateMapperText class implementation.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <cfcontextinterface.h>
       
    20 #include <cfcontextobject.h>
       
    21 
       
    22 #include "psstatemappertext.h"
       
    23 
       
    24 /*
       
    25 namespace
       
    26     {
       
    27     #ifdef _DEBUG
       
    28     
       
    29     // Panic category
       
    30     _LIT( KPanicCat, "PSStateMapText" );
       
    31     
       
    32     // Panic codes
       
    33     enum TPanicReason
       
    34         {
       
    35         EInvalidConstructionParameters
       
    36         };
       
    37         
       
    38     // Local panic function
       
    39     LOCAL_C void Panic( TInt aCode )
       
    40         {
       
    41         User::Panic( KPanicCat, aCode );
       
    42         }
       
    43     
       
    44     #endif
       
    45     }
       
    46 */
       
    47 
       
    48 CPSStateMapperText* CPSStateMapperText::NewL(
       
    49     MCFContextInterface& aCF )
       
    50     {
       
    51     CPSStateMapperText* self = CPSStateMapperText::NewLC( aCF );
       
    52     CleanupStack::Pop();
       
    53     
       
    54     return self;
       
    55     }
       
    56   
       
    57 CPSStateMapperText* CPSStateMapperText::NewLC(
       
    58     MCFContextInterface& aCF )
       
    59     {
       
    60     CPSStateMapperText* self = new( ELeave ) CPSStateMapperText( aCF );
       
    61     CleanupStack::PushL( self );
       
    62     self->ConstructL( );
       
    63     
       
    64     return self;
       
    65     }
       
    66   
       
    67 // Destructor
       
    68 CPSStateMapperText::~CPSStateMapperText()
       
    69     {
       
    70     if(iStartCB)
       
    71     	{
       
    72     	iStartCB->Cancel();
       
    73     	delete iStartCB; iStartCB = 0;
       
    74     	}
       
    75     iTextMappings.ResetAndDestroy();
       
    76     }
       
    77 
       
    78 CPSStateMapperText::CPSStateMapperText(
       
    79     MCFContextInterface& aCF ) : CPSStateMapper( aCF )
       
    80     {
       
    81     }
       
    82     
       
    83 // METHODS
       
    84 
       
    85 TInt CPSStateMapperText::MapperType() const
       
    86 	{
       
    87 	return EPSTextMapper;
       
    88 	}
       
    89 
       
    90 void CPSStateMapperText::AddMappingL(const TDesC& aPSValue,
       
    91 	const TDesC& aContextValue)
       
    92 	{
       
    93 	CTextPair* mapping = CTextPair::NewLC(aPSValue, aContextValue );
       
    94 	iTextMappings.AppendL(mapping);
       
    95 	CleanupStack::Pop(); // mapping
       
    96 	}
       
    97 
       
    98 
       
    99 void CPSStateMapperText::Define()
       
   100 	{
       
   101 	RProperty::Define( iPSCategory,
       
   102         iPSKey,
       
   103         RProperty::EText );
       
   104     
       
   105     iCF.DefineContext( *iSource,
       
   106         *iType,
       
   107         iSecurityPolicy );
       
   108 	}
       
   109 
       
   110 void CPSStateMapperText::InitializeL()
       
   111 	{
       
   112 	User::LeaveIfError(
       
   113         iProperty.Attach( iPSCategory, iPSKey ) );
       
   114 	iStartCB = new (ELeave) CAsyncCallBack(TCallBack(CPSStateMapperText::StartCallback, this), EPriorityStandard);
       
   115 	iStartCB->CallBack();
       
   116 	}
       
   117 
       
   118 //-----------------------------------------------------------------------------
       
   119 // CPSStateMapperText::ProperyChangedL
       
   120 //-----------------------------------------------------------------------------
       
   121 //
       
   122 void CPSStateMapperText::ProperyChangedL()
       
   123     {
       
   124     TBool mappingFound = EFalse;
       
   125     
       
   126     HBufC* psvalue = HBufC::NewLC( 512 ); // >> cleanup
       
   127     TPtr bufPtr = psvalue->Des();
       
   128     bufPtr.Zero();
       
   129 
       
   130     if ( iProperty.Get ( bufPtr ) == KErrNone )
       
   131     	{
       
   132 	    for (TInt i = 0; i < iTextMappings.Count(); i++)
       
   133 	    	{
       
   134 	    	if (iTextMappings[i]->Text1() == *psvalue)
       
   135 	    		{
       
   136 	    		mappingFound = ETrue;
       
   137 	    			
       
   138 	    		// Configure context object
       
   139 	            iContext->SetSourceL( *iSource );
       
   140 	            iContext->SetTypeL( *iType );
       
   141 	            iContext->SetValueL( iTextMappings[i]->Text2() );	
       
   142 	    		
       
   143 	    		// Publish
       
   144                 RThread thread;
       
   145                 iCF.PublishContext( *iContext, thread );
       
   146                 thread.Close();
       
   147 	    		}		
       
   148 	    	}
       
   149 
       
   150 		if ( !mappingFound && iPassThrough )
       
   151 	    	{
       
   152 	    	// Configure context object
       
   153             iContext->SetSourceL( *iSource );
       
   154             iContext->SetTypeL( *iType );
       
   155             iContext->SetValueL( *psvalue );	
       
   156     		
       
   157     		// Publish
       
   158             RThread thread;
       
   159             iCF.PublishContext( *iContext, thread );
       
   160             thread.Close();
       
   161 	    	}
       
   162         }
       
   163     
       
   164     CleanupStack::PopAndDestroy(); // psvalue
       
   165     }
       
   166 
       
   167 TInt CPSStateMapperText::StartCallback(TAny* aPtr)
       
   168 	{
       
   169 	static_cast<CPSStateMapperText*>(aPtr)->DoStart();
       
   170 	
       
   171 	return 0;
       
   172 	}
       
   173 	
       
   174 void CPSStateMapperText::DoStart()
       
   175 	{
       
   176 	Subscribe();
       
   177     TRAP_IGNORE(ProperyChangedL());
       
   178 	}
       
   179