--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluicontroller/src/transaction.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,111 @@
+/*
+* Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Transaction base class
+*
+*/
+
+
+#include    "transaction.h"
+#include    "transactionelement.h"
+#include    "transactionfactory.h"
+#include    "xmluicontrollerpanic.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+using namespace AiXmlUiController;
+
+CTransaction::CTransaction()
+    : iTransactionElements(CTransactionElement::LinkOffset())
+    {
+    }
+
+CTransaction* CTransaction::NewL()
+    {
+    CTransaction* self = new( ELeave ) CTransaction;
+    
+    return self;
+    }
+    
+CTransaction::~CTransaction()
+    {
+    __ASSERT_DEBUG( iTransactionElements.IsEmpty(), Panic( ETransactionElementListNotEmpty ) );
+    }
+
+TInt CTransaction::Id() const
+    {
+    return iTxId;
+    }
+    
+void CTransaction::Initialize(TInt aTxId)
+    {
+    iTxId = aTxId;
+    }
+    
+void CTransaction::Append(MTransactionElement& aElement )
+    {
+    iTransactionElements.AddLast(dynamic_cast<CTransactionElement&>(aElement));
+    }
+    
+void CTransaction::CommitL( TBool& aLayoutChanged, RPropertyHashMap& aPropertyHashMap )
+    {
+    aLayoutChanged = EFalse;
+        
+    if ( iTransactionElements.IsEmpty() )
+        {
+        // Nothing to do
+        return;
+        }
+    
+    // Initialize iterator
+    TDblQueIter<CTransactionElement> iter( iTransactionElements );
+    iter.SetToFirst();
+
+    // Commit transaction elements    
+    while ( iter )
+        {
+        // Commit element and advance iterator 
+        (iter++)->CommitL( aLayoutChanged, aPropertyHashMap );
+        }
+    }
+
+void CTransaction::Reset(MTransactionFactory& aFactory)
+    {
+    Deque();
+    iTxId = 0;
+    
+    TDblQueIter<CTransactionElement> iter( iTransactionElements );
+    iter.SetToFirst();
+    
+    while ( iter )
+        {
+        CTransactionElement* element = iter++;
+        aFactory.ReleaseTransactionElement( element );
+        }
+        
+    __ASSERT_DEBUG( iTransactionElements.IsEmpty(), Panic( ETransactionElementListNotEmpty ) );
+    }
+
+TDblQueIter<CTransactionElement> CTransaction::ElementIter()
+    {
+    TDblQueIter<CTransactionElement> iter( iTransactionElements );
+    iter.SetToFirst();
+    return iter;
+    }
+
+void CTransaction::Deque()
+    {
+    iLink.Deque();
+    }
+
+//  End of File