browserutilities/favouritesengine/ClientServer/src/ActiveFavouritesDbNotifier.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/browserutilities/favouritesengine/ClientServer/src/ActiveFavouritesDbNotifier.cpp Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,116 @@
+/*
+* 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 the License "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:
+* Implementation of CActiveFavouritesDbNotifier.
+*
+*
+*/
+
+
+// INCLUDE FILES
+
+#include "ActiveFavouritesDbNotifier.h"
+#include "FavouritesDbObserver.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::CActiveFavouritesDbNotifier
+// ---------------------------------------------------------
+//
+EXPORT_C CActiveFavouritesDbNotifier::CActiveFavouritesDbNotifier
+( RFavouritesDb& aDb, MFavouritesDbObserver& aObserver )
+: CActive( EPriorityStandard ), iDb( aDb ), iObserver( &aObserver )
+ {
+ CActiveScheduler::Add( this );
+ }
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::~CActiveFavouritesDbNotifier
+// ---------------------------------------------------------
+//
+EXPORT_C CActiveFavouritesDbNotifier::~CActiveFavouritesDbNotifier()
+ {
+ iNotifier.Close();
+ Cancel();
+ }
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::RunL
+// ---------------------------------------------------------
+//
+EXPORT_C void CActiveFavouritesDbNotifier::RunL()
+ {
+ if ( iStatus == KErrCancel )
+ {
+ // Cancelled, do nothing.
+ }
+ else
+ {
+ // Otherwise, the event must be one of RDbNotifier::TEvent.
+ RDbNotifier::TEvent event =
+ STATIC_CAST( RDbNotifier::TEvent, iStatus.Int() );
+ if ( iStatus == RDbNotifier::EClose )
+ {
+ // Finish if the database is closed.
+ iNotifier.Close();
+ }
+ else
+ {
+ // Reschedule automatically (as long as the database is open).
+ NotifyChange();
+ }
+ // Call observer *after* the notifier is rescheduled: this way
+ // the notifier stays alive even if observer leaves.
+ iObserver->HandleFavouritesDbEventL( event );
+ }
+ }
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::DoCancel
+// ---------------------------------------------------------
+//
+EXPORT_C void CActiveFavouritesDbNotifier::DoCancel()
+ {
+ iNotifier.Close();
+ }
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::Start
+// ---------------------------------------------------------
+//
+EXPORT_C TInt CActiveFavouritesDbNotifier::Start()
+ {
+ TInt err = iNotifier.Open( iDb );
+ if ( !err )
+ {
+ NotifyChange();
+ }
+ return err;
+ }
+
+// ---------------------------------------------------------
+// CActiveFavouritesDbNotifier::NotifyChange
+// ---------------------------------------------------------
+//
+void CActiveFavouritesDbNotifier::NotifyChange()
+ {
+ if ( !IsActive() )
+ {
+ iNotifier.NotifyChange( iStatus );
+ SetActive();
+ }
+ }
+
+// End of File