calendarengines/caleninterimutils/src/CalenEcomWatcher.cpp
changeset 0 f979ecb2b13e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/calendarengines/caleninterimutils/src/CalenEcomWatcher.cpp	Tue Feb 02 10:12:19 2010 +0200
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2005 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 class watches for changes to the ECOM registry
+*             and forces a recheck of Meeting request availablity
+*
+*/
+
+
+// ----------------------------------------------------------------------------
+// INCLUDE FILES
+// ----------------------------------------------------------------------------
+//
+#include "CalenEcomWatcher.h"
+#include "CalenInterimUtils2Impl.h"
+#include "calenecomchangeobserver.h"
+
+//debug
+#include "calendarengines_debug.h"
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::NewL()
+// Creates and returns a new CCalenEComWatcher object.
+// -----------------------------------------------------------------------------
+EXPORT_C CCalenEComWatcher* CCalenEComWatcher::NewL( MCalenEComChangeObserver& aObserver )
+    {
+    TRACE_ENTRY_POINT;
+    
+    CCalenEComWatcher* self = new(ELeave) CCalenEComWatcher( aObserver );
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    
+    TRACE_EXIT_POINT;
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::CCalenEcomWatcher()
+// Default constructor
+// -----------------------------------------------------------------------------
+CCalenEComWatcher::CCalenEComWatcher( MCalenEComChangeObserver& aObserver )
+    : CActive(EPriorityNormal), iEComObserver( aObserver )
+    {
+    TRACE_ENTRY_POINT;
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::ConstructL()
+// Second phase construction.  Opens the ecom session and requests notifications
+// -----------------------------------------------------------------------------
+void CCalenEComWatcher::ConstructL()
+    {
+    TRACE_ENTRY_POINT;
+    
+    iSession = REComSession::OpenL();
+    iSession.NotifyOnChange(iStatus);
+    CActiveScheduler::Add(this);
+    SetActive();
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::~CCalenEComWatcher()
+// Destructor
+// -----------------------------------------------------------------------------
+CCalenEComWatcher::~CCalenEComWatcher()
+    {
+    TRACE_ENTRY_POINT;
+    
+    Cancel();
+    iSession.Close();
+    REComSession::FinalClose();
+    
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::RunL()
+// From CActive
+// Called whenever a change to the Ecom registry occurs
+// -----------------------------------------------------------------------------
+void CCalenEComWatcher::RunL()
+    {
+    TRACE_ENTRY_POINT;
+
+    // Force a recheck of meeting request availability. Ignore the return value.
+    iEComObserver.EComChanged();
+    iSession.NotifyOnChange(iStatus);
+    SetActive();
+
+    TRACE_EXIT_POINT;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::RunError()
+// From CActive
+// This is a simple watcher class.  If RunL leaves then meeting request support 
+// will be disabled anyway, at least until the next ecom notification occurs.  
+// If we can't even retrieve a list of mailboxes without leaving we've got no 
+// chance of displaying the viewers correctly.
+// Swallow the error.
+// -----------------------------------------------------------------------------
+TInt CCalenEComWatcher::RunError()
+    {
+    TRACE_ENTRY_POINT;
+
+    iSession.NotifyOnChange(iStatus);
+    SetActive();
+
+    TRACE_EXIT_POINT;
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// CCalenEComWatcher::DoCancel()
+// From CActive
+// Stop watching the ecom session
+// -----------------------------------------------------------------------------
+void CCalenEComWatcher::DoCancel()
+    {
+    TRACE_ENTRY_POINT;
+
+    iSession.CancelNotifyOnChange(iStatus);
+
+    TRACE_EXIT_POINT;
+    }
+
+// End of file