--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluicontroller/inc/mtransaction.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,108 @@
+/*
+* 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
+*
+*/
+
+
+#ifndef M_TRANSACTION_H
+#define M_TRANSACTION_H
+
+#include <e32hashtab.h>
+
+
+inline TUint32 NodeHash(const TAny* aPtr)
+    {
+    return (TUint32)aPtr;
+    };
+
+inline TBool NodeRelation(const TAny* aPtr1, const TAny* aPtr2)
+    {
+    return aPtr1 == aPtr2;
+    };
+
+// Default functions for xnnode type
+
+TEMPLATE_SPECIALIZATION class RHashTableBase::Defaults<
+                                        CXnNodeAppIf,
+                                        RHashTableBase::EDefaultSpecifier_Normal>
+	{
+public:
+	inline static TGeneralHashFunction32 Hash();
+	inline static TGeneralIdentityRelation Id();
+	};
+
+inline TGeneralHashFunction32 RHashTableBase::Defaults<
+                                        CXnNodeAppIf,
+                                        RHashTableBase::EDefaultSpecifier_Normal>::Hash()
+	{return (TGeneralHashFunction32)&NodeHash;}
+
+inline TGeneralIdentityRelation RHashTableBase::Defaults<
+                                        CXnNodeAppIf,
+                                        RHashTableBase::EDefaultSpecifier_Normal>::Id()
+	{return (TGeneralIdentityRelation)&NodeRelation;}
+
+	
+namespace AiXmlUiController
+{
+    
+class CTransactionElement;
+class MTransactionElement;
+class MTransactionFactory;
+
+typedef RPointerArray<CXnProperty> RPropertyArray;
+
+typedef RPtrHashMap<CXnNodeAppIf, RPropertyArray> RPropertyHashMap;
+
+/**
+ *  MTransaction represents a transaction of publish operations.
+ *
+ *  @lib AiXmlUiMain
+ */
+class MTransaction
+    {
+
+public:
+
+    /**
+     * Appends a transaction element in this transaction.
+     *
+     * @param aElement the transaction element
+     */
+    virtual void Append(MTransactionElement& aElement) = 0;
+    
+    /**
+     * Commits this transaction by committing all transaction elements.
+     *
+     * @param [out] aLayoutChanged true if UI layout changes
+     */
+    virtual void CommitL( TBool& aLayoutChanged, RPropertyHashMap& aPropertyHashMap ) = 0;
+    
+    /**
+     * Resets this transaction for reuse.
+     *
+     * @param aFactory the factory which created this transaction
+     */
+    virtual void Reset(MTransactionFactory& aFactory) = 0;
+    
+    virtual TDblQueIter<CTransactionElement> ElementIter() = 0;
+protected:
+
+    ~MTransaction() {};
+
+    };
+
+} // namespace AiXmlUiController
+
+#endif // M_UPDATETRANSACTION_H