--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluicontroller/src/emptycontenttransactionelement.cpp	Wed Sep 01 12:32:46 2010 +0100
@@ -0,0 +1,138 @@
+/*
+* 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 element for publishing empty content
+*
+*/
+
+
+#include "xntype.h"
+#include "xnnewsticker.h"
+#include "xnbitmap.h"
+#include "xntext.h"
+#include "xntexteditor.h"
+#include "emptycontenttransactionelement.h"
+#include "aixmluiconstants.h"
+#include "aixmluiutils.h"
+
+using namespace AiXmlUiController;
+using namespace XnImageInterface;
+using namespace XnTextInterface;
+using namespace AiUiDef::xml;
+
+const TInt KControlIndexOffset = 1;
+
+// ======== MEMBER FUNCTIONS ========
+
+CEmptyContentTransactionElement::CEmptyContentTransactionElement(
+                                AiUtility::CContentPriorityMap& aContentPriorityMap)
+    : CTransactionElement( aContentPriorityMap ),
+      iIndex( KErrNotFound )
+    {
+    }
+
+CEmptyContentTransactionElement* CEmptyContentTransactionElement::NewL(
+                                AiUtility::CContentPriorityMap& aContentPriorityMap)
+    {
+    CEmptyContentTransactionElement* self =
+            new( ELeave ) CEmptyContentTransactionElement( aContentPriorityMap );
+    return self;
+    }
+
+CEmptyContentTransactionElement::~CEmptyContentTransactionElement()
+    {
+    }
+
+void CEmptyContentTransactionElement::InitializeL( CXnNodeAppIf& aTarget, TInt aIndex )
+    {
+    SetTarget( aTarget );
+    
+    // Indexes in XML theme run 1...n, but in control interface 0...n-1
+    iIndex = aIndex - KControlIndexOffset;
+    }
+
+void CEmptyContentTransactionElement::Reset()
+    {
+    CTransactionElement::Reset();
+    iIndex = KErrNotFound;
+    }
+
+void CEmptyContentTransactionElement::UpdateDataL()
+    {
+    CXnType* type = Target().Type();
+
+    if ( type->Type() == XnImageInterface::MXnImageInterface::Type() )
+        {
+        MXnImageInterface* image( NULL );
+        XnComponentInterface::MakeInterfaceL( image, Target() );
+
+        LeaveIfNull( image, KErrNotSupported );
+        
+        // Clears the bitmaps from component
+        image->SetContentBitmaps( NULL, NULL );
+        }
+    else if ( type->Type() == XnTextInterface::MXnTextInterface::Type() ) // text element
+        {
+        // Get control interface
+        XnTextInterface::MXnTextInterface* text( NULL );
+        XnComponentInterface::MakeInterfaceL( text, Target() );
+        
+        LeaveIfNull( text, KErrNotSupported );
+        
+        // Clears the text from component
+        text->SetTextL( KNullDesC );
+        }
+    else if ( type->Type() == XnTextEditorInterface::MXnTextEditorInterface::Type() ) // texteditor element
+        {
+        // Get control interface
+        XnTextEditorInterface::MXnTextEditorInterface* editor( NULL );
+        XnComponentInterface::MakeInterfaceL( editor, Target() );
+        
+        LeaveIfNull( editor, KErrNotSupported );
+        
+        // Clears the text from component
+        editor->SetTextL( KNullDesC );
+        }
+    else
+        {
+        CXnNodeAppIf* parent( Target().ParentL() );
+        LeaveIfNull( parent, KErrNotSupported );
+        
+        const TDesC8& parentType( parent->Type()->Type() );
+            
+        if ( parentType == XnNewstickerInterface::MXnNewstickerInterface::Type() )
+            {
+            XnNewstickerInterface::MXnNewstickerInterface* newsticker( NULL );
+            XnComponentInterface::MakeInterfaceL( newsticker, *parent );
+            
+            LeaveIfNull( newsticker, KErrNotSupported );
+            
+            CXnProperty* prop( Target().GetPropertyL( 
+                XnPropertyNames::title::KTitleIndex ) );
+    
+            LeaveIfNull( prop, KErrNotSupported );
+
+            TInt index( KErrNotFound );
+            
+            TLex8 lex( prop->StringValue() );
+            lex.Val( index );
+            
+            newsticker->DeleteTitle( index );
+            }
+        }
+    
+    // Clear current content priority
+    ClearContentPriorityL();
+    }
+
+// End of file