--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmuifw_plat/alf_widgetmodel_api/inc/alf/ialfmodel.h	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,201 @@
+/*
+* Copyright (c) 2004 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:  This interface defines a generic data type
+*
+*/
+
+
+
+
+#ifndef I_ALFMODEL_H
+#define I_ALFMODEL_H
+
+
+//INCLUDES
+#include <alf/ialfinterfacebase.h>
+#include <alf/alftypes.h>
+
+namespace osncore
+    {
+template <class T> class AlfPtrVector;
+    }
+using namespace osncore;
+
+namespace Alf
+    {
+
+/* Forward declarations*/
+class IAlfModelChangeObserver;
+class IAlfVariantType;
+class AlfModelOperation;
+class AlfCustomInitDataBase;
+
+
+namespace alfmodel
+    {
+static const IfId ident=
+    {
+    0,"alfmodel"
+    };
+    }
+
+/**
+ * An interface of the component model.
+ * @lib alfwidgetmodel.lib
+ * @since S60 ?S60_version
+ * @status Draft
+ */
+
+class IAlfModel: public IAlfInterfaceBase
+    {
+public:
+    static inline const IfId& type()
+        {
+        return alfmodel::ident;
+        }
+        
+    /**
+     * Virtual destructor.
+     *
+     * @since S60 ?S60_version
+     */
+    virtual ~IAlfModel() {}
+
+    /**
+     * Add a new observer to be notified of any changes in the model.
+     *
+     * @exception std::bad_alloc
+     *
+     * @param aObserver The model change observer to be added.
+     * @return void
+     * @since S60 ?S60_version
+     */
+    virtual void addModelChangeObserver(
+                IAlfModelChangeObserver& aObserver ) = 0;
+
+
+    /**
+     * Remove an observer which is added to get notifications.
+     *
+     * @param aObserver The model change observer to be removed.
+     * @return void
+     * @since S60 ?S60_version
+     */
+    virtual void removeModelChangeObserver(
+                IAlfModelChangeObserver& aObserver )=0;
+
+    /**
+     * Api to change the model completely at one short. From IAlfModel
+     *
+     * @param aData  The new data.
+     * @since S60 ?S60_version
+     */
+    virtual void setData( IAlfVariantType* aData ) = 0;
+
+    /**
+     * Change a given  of data fields in the model . All model change
+     * observers are notified about the change.
+     * @param aNumContainerIndices The number of indices in aContainerIndices.
+     * @param aContainerIndices The container indices to find the correct
+     *            location in the data hierarchy. The ownership is transferred.
+     * @param aData - The new data to be set
+     * @since S60 ?S60_version
+     */
+    virtual void updateData(
+                int aNumContainerIndices,int* aContainerIndices,
+                IAlfVariantType* aData ) = 0;
+
+    /**
+     * Add a  number of data fields in the model data. All model change
+     * observers are notified about the change.
+     *
+     * @param aNumContainerIndices The number of indices in aContainerIndices.
+     * @param aContainerIndices The container indices to find the correct
+     *            location in the data hierarchy. The ownership is transferred.
+     * @param aData The new data.
+     * @since S60 ?S60_version
+     */
+    virtual void addData(
+                int aNumContainerIndices,int* aContainerIndices,
+                IAlfVariantType* aData ) = 0;
+
+    /**
+     * Remove a  number of data fields in the model data. All model change
+     * observers are notified about the change.
+     *
+     * @param aNumContainerIndices The number of indices in aContainerIndices.
+     * @param aContainerIndices The container indices to find the correct
+     *            location in the data hierarchy. The ownership is transferred.
+     * @since S60 ?S60_version
+     */
+    virtual void removeData(
+            int aNumContainerIndices,
+            int* aContainerIndices ) = 0;
+
+    /**
+     * Api for executing batch operations
+     *
+     * @param aOperationsArray  - An RPOinterArray containing the list of 
+     *            operations to be executed in batch.
+     * @since S60 ?S60_version
+     */
+    virtual void executeOperations(
+                AlfPtrVector<AlfModelOperation>&  aOperationsArray) = 0;
+
+    /**
+     * Api for executing one operation at a Time
+     *
+     * @param aOperation    - An Operation to be executed on the model.
+     * @since S60 ?S60_version
+     */
+    virtual void executeOperation(AlfModelOperation* aOperation) = 0;
+
+    /**
+     * Clears the Model.
+     * @return void
+     * @since S60 ?S60_version
+     */
+    virtual void clearModel() = 0;
+    /**
+     * Get the root data object of this model.
+     *
+     * @return The root data object.
+     * @since S60 ?S60_version
+     */
+    virtual IAlfVariantType* data() const = 0;
+
+    };
+
+/**
+ *  Placeholder for information required to instantiate a model
+ *  via the widget factory mechanism.
+ *  A pointer to this structure is casted to a void pointer and sent to the
+ *  factory plugin.
+ *  @lib alfwidgetmodel.lib
+ *  @since S60 ?S60_version
+ */
+struct AlfModelInitData
+    {
+    /**
+     * Pointer to custom data passed via factory mechanism
+     * Not Owned.
+     */
+    AlfCustomInitDataBase* mCustomData;  
+    };
+    
+    } // namespace Alf
+
+#endif // I_ALFMODEL_H
+
+// End of File