diff -r 8bda91a87a00 -r 8ee96d21d9bf controlpanel/src/cpframework/src/cpitemdatahelper.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/controlpanel/src/cpframework/src/cpitemdatahelper.cpp	Tue Aug 31 15:29:50 2010 +0300
@@ -0,0 +1,312 @@
+/*
+* Copyright (c) 2009 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:  Helper class by which a plugin can communicate with the associated dataform.
+*
+*/
+#include "cpitemdatahelper.h"
+#include <QList>
+#include <hbdataform.h>
+#include <hbdataformmodelitem.h>
+#include <hbdataformviewitem.h>
+#include <hbdataformmodel.h>
+
+/*!
+\internal
+*/
+class CpItemDataHelperPrivate
+{
+public:
+    /*!
+    \internal
+    */
+    class ItemConnection
+    {
+    public:
+        ItemConnection(HbDataFormModelItem *item,
+            const char *signal,
+            QObject *receiver,
+            const char *method) :
+            mItem(item),mSignal(signal),
+            mReceiver(receiver),mMethod(method)
+        {
+        }
+
+        bool operator == (const ItemConnection &other)
+        {
+            return mItem     == other.mItem &&
+                   mSignal   == other.mSignal &&
+                   mReceiver == other.mReceiver &&
+                   mMethod   == other.mMethod;
+        }
+
+        HbDataFormModelItem *mItem;
+        QString mSignal;
+        QObject *mReceiver;
+        QString mMethod;
+    };
+
+    class FormConnection
+    {
+    public:
+        FormConnection(const char *signal,
+            QObject *receiver,
+            const char *method) :
+            mSignal(signal),mReceiver(receiver),mMethod(method)
+        {
+        }
+
+        bool operator == (const FormConnection &other)
+        {
+            return mSignal   == other.mSignal &&
+                   mReceiver == other.mReceiver &&
+                   mMethod   == other.mMethod;
+        }
+        QString mSignal;
+        QObject *mReceiver;
+        QString mMethod;
+    };
+
+	CpItemDataHelperPrivate(HbDataForm *form /*= 0*/)
+        : mDataForm(form)
+	{
+	}
+
+	~CpItemDataHelperPrivate()
+	{
+	}
+
+	void addConnection(HbDataFormModelItem *item,
+		const char *signal,
+		QObject *receiver,
+		const char *method)
+	{
+        if (mDataForm) {
+            mDataForm->addConnection(item,signal,receiver,method);
+        }
+        else {
+            mItemConnections.append(ItemConnection(item,signal,receiver,method));
+        }
+	}
+
+	void removeConnection(HbDataFormModelItem *item,
+		const char *signal,
+		QObject *receiver,
+		const char *method)
+	{
+        if (mDataForm) {
+            mDataForm->removeConnection(item,signal,receiver,method);
+        } 
+        else {
+            mItemConnections.removeAll(ItemConnection(item,signal,receiver,method));
+        }
+	}
+
+    void connectToForm(const char *signal,
+        QObject *receiver,
+        const char *method)
+    {
+        if (mDataForm) {
+            QObject::connect(mDataForm,signal,receiver,method);
+        }
+        else {
+            mFormConnections.append(FormConnection(signal,receiver,method));
+        }
+    }
+
+    void disconnectFromForm(const char *signal,
+        QObject *receiver,
+        const char *method)
+    {
+        if (mDataForm) {
+            QObject::disconnect(mDataForm,signal,receiver,method);
+        }
+        else {
+            mFormConnections.removeAll(FormConnection(signal,receiver,method));
+        }
+    }
+
+    void addItemPrototype(HbAbstractViewItem *prototype)
+    {
+        if (prototype) {
+            if (mDataForm) {
+                QList<HbAbstractViewItem *> protoTypeList = mDataForm->itemPrototypes();
+                protoTypeList.append(prototype);
+                mDataForm->setItemPrototypes(protoTypeList);	
+            }
+            else {
+                mItemPrototypes.append(prototype);
+            }
+        }
+    }
+
+	void bindToForm(HbDataForm *form)
+	{
+        mDataForm = form;
+
+        if (mDataForm) {
+            foreach(const ItemConnection &connection,mItemConnections) {
+                mDataForm->addConnection(connection.mItem,connection.mSignal.toAscii(),
+                    connection.mReceiver,connection.mMethod.toAscii());
+            }
+            mItemConnections.clear();
+
+            foreach(const FormConnection &connection,mFormConnections) {
+                QObject::connect(mDataForm,connection.mSignal.toAscii(),
+                    connection.mReceiver,connection.mMethod.toAscii());
+            }
+            mFormConnections.clear();
+
+            if (!mItemPrototypes.isEmpty()) {
+                QList<HbAbstractViewItem *> protoTypeList = mDataForm->itemPrototypes();
+                protoTypeList.append(mItemPrototypes);
+                mDataForm->setItemPrototypes(protoTypeList);	
+            }
+            mItemPrototypes.clear();
+        }
+	}
+
+    HbWidget *widgetFromModelIndex(const QModelIndex &index)
+    {
+        if (mDataForm) {
+            HbDataFormViewItem *viewItem = qobject_cast<HbDataFormViewItem *>
+                                                    (mDataForm->itemByIndex(index));
+            if (viewItem) {
+                return viewItem->dataItemContentWidget();
+            }
+        }
+        return 0;
+    }
+    
+    HbDataFormModelItem *modelItemFromModelIndex(const QModelIndex &index)
+    {
+        if (mDataForm) {
+            HbDataFormModel *dataFormModel = 
+                    qobject_cast<HbDataFormModel*>(mDataForm->model());
+            if (dataFormModel) {
+                return dataFormModel->itemFromIndex(index);
+            }
+        }
+        return 0;
+    }
+
+public:
+    HbDataForm *mDataForm;
+    QList<ItemConnection> mItemConnections;
+    QList<FormConnection> mFormConnections;
+    QList<HbAbstractViewItem*> mItemPrototypes;
+};
+
+
+/*!
+    \class CpItemDataHelper
+    \brief The CpItemDataHelper class is a helper class to help controlpanel plugins to comminicate with the associated dataform,
+    such as connecting slots to inner widgets of setting items, add item prototypes.
+	 And add prototypes to dataform.
+ */
+
+
+/*!
+    Constructor of CpItemDataHelper.
+ */
+CpItemDataHelper::CpItemDataHelper(HbDataForm *form/* = 0*/)
+: d(new CpItemDataHelperPrivate(form))
+{
+}
+
+
+/*!
+    Destructor of CpItemDataHelper.
+ */
+CpItemDataHelper::~CpItemDataHelper()
+{
+    delete d;
+}
+
+/*!
+    Connect a slot to inner widget's signal of setting item.
+ */
+void CpItemDataHelper::addConnection(HbDataFormModelItem *item,
+									 const char *signal,
+									 QObject *receiver,
+									 const char *method)
+{
+	d->addConnection(item,signal,receiver,method);
+}
+
+/*!
+    Disconnect a slot to inner widget's signal of setting item.
+ */
+void CpItemDataHelper::removeConnection(HbDataFormModelItem *item,
+										const char *signal,
+										QObject *receiver,
+										const char *method)
+{
+	d->removeConnection(item,signal,receiver,method);
+}
+
+/*!
+    Connect slot to data form.
+*/
+void CpItemDataHelper::connectToForm(const char *signal,
+                                     QObject *receiver,
+                                     const char *method)
+{
+    d->connectToForm(signal,receiver,method);
+}
+
+/*!
+    Disconnect slot from data form.
+*/
+void CpItemDataHelper::disconnectFromForm(const char *signal,
+                                          QObject *receiver,
+                                          const char *method)
+{
+    d->disconnectFromForm(signal,receiver,method);
+}
+
+
+/*!
+    Add a prototype to data form, to create custom widget for a custom setting item.
+ */
+void CpItemDataHelper::addItemPrototype(HbAbstractViewItem *prototype)
+{
+	d->addItemPrototype(prototype);
+}
+
+/*!
+    Bind the connections and prototypes to a data form.
+ */
+void CpItemDataHelper::bindToForm(HbDataForm *form)
+{
+	d->bindToForm(form);
+}
+
+
+/*!
+    Get the HbWidget instance from data form.
+*/
+HbWidget *CpItemDataHelper::widgetFromModelIndex(const QModelIndex &index)
+{
+    return d->widgetFromModelIndex(index);
+}
+
+/*!
+    Get the HbDataFormModelItem with a QModelIndex from associated data form's model.
+*/
+HbDataFormModelItem *CpItemDataHelper::modelItemFromModelIndex(const QModelIndex &index)
+{
+    return d->modelItemFromModelIndex(index);
+}
+
+//End of File