menucontentsrv/srvsrc/mcschildrenhandler.cpp
changeset 0 79c6a41cd166
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menucontentsrv/srvsrc/mcschildrenhandler.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,114 @@
+/*
+* 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:
+*
+*/
+
+#include <e32base.h>
+
+#include "mcschildrenhandler.h"
+
+#include "mcsdef.h"
+#include "mcsmenunotifier.h"
+#include "menueng.h"
+#include "mcscachehandler.h"
+#include "menusrveng.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+// -----------------------------------------------------------------------------
+// CMcsChildrenHandler::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+
+CMcsChildrenHandler* CMcsChildrenHandler::NewL( 
+    CMenuSrvEng& aSrvEng,
+    CMcsCacheHandler& aCacheHandler )
+	{
+	CMcsChildrenHandler* self = new( ELeave ) 
+				CMcsChildrenHandler( aSrvEng, aCacheHandler );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+	}
+
+// -----------------------------------------------------------------------------    
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CMcsChildrenHandler::~CMcsChildrenHandler()
+	{
+	delete iScanner;
+	}
+
+// -----------------------------------------------------------------------------
+// CMcsChildrenHandler::CMcsChildrenHandler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CMcsChildrenHandler::CMcsChildrenHandler( 
+    CMenuSrvEng& aSrvEng,
+    CMcsCacheHandler& aCacheHandler  ) :
+    iSrvEng( aSrvEng ),
+    iCacheHandler( aCacheHandler )
+	{
+
+	}
+
+// -----------------------------------------------------------------------------
+// CMcsDrmHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+void CMcsChildrenHandler::ConstructL()
+	{
+	iScanner = CMcsChildrenScanner::NewL(*this, iSrvEng);
+	}
+
+// -----------------------------------------------------------------------------    
+// 
+// -----------------------------------------------------------------------------
+//
+void CMcsChildrenHandler::HandleChildrenEvent(TInt aId, TUint aOldCount, TUint aNewCount)
+	{
+	if (aOldCount != aNewCount)
+		{
+		iCacheHandler.HandleRemoveAttribute(aId, KChildrenCount);
+
+		// Send Notification
+		if (aOldCount == 0 || aNewCount == 0)
+			{
+			TRAP_IGNORE( iSrvEng.Engine().ModifiableObjectL( 
+					aId, RMenuNotifier::EItemAttributeChanged ));
+			}
+		}
+	}
+
+
+// -----------------------------------------------------------------------------    
+// 
+// -----------------------------------------------------------------------------
+//
+void CMcsChildrenHandler::EngineEvents( TInt aFolder, TInt aEvents )
+	{
+    if ( aEvents & ( RMenuNotifier::EItemsAddedRemoved 
+                   | RMenuNotifier::EItemAttributeChanged ) )
+        {
+        iScanner->Scan(aFolder);
+        }    
+	}
+
+//  End of File  
+