--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/callcontinuity/vccpropertyhandler/src/vccuipspropertylistener.cpp Mon Jan 18 20:12:36 2010 +0200
@@ -0,0 +1,209 @@
+/*
+* Copyright (c) 2007-2008 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: Observes the state of a Vcc P&S property
+*
+*/
+
+
+#include <e32cmn.h>
+#include <e32debug.h>
+#include <vccsubscribekeys.h>
+
+#include "vccuipspropertylistener.h"
+#include "rubydebug.h"
+
+// ======== MEMBER FUNCTIONS ========
+// -----------------------------------------------------------------------------
+// C++ constructor
+// -----------------------------------------------------------------------------
+//
+CVccUiPsPropertyListener::CVccUiPsPropertyListener( const TUint aKeyId )
+ :CActive( EPriorityStandard ),
+ iCategoryId( KPSVccPropertyCategory ),
+ iKeyId( aKeyId )
+ {
+ }
+
+// -----------------------------------------------------------------------------
+// 2nd phase constructor
+// -----------------------------------------------------------------------------
+//
+void CVccUiPsPropertyListener::ConstructL()
+ {
+ RUBY_DEBUG_BLOCKL( "CVccUiPsPropertyListener::ConstructL" );
+ // Attach to categroy and key.
+ User::LeaveIfError( iProperty.Attach( iCategoryId, iKeyId ) );
+ // Add to active scheduler
+ CActiveScheduler::Add( this );
+ }
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CVccUiPsPropertyListener* CVccUiPsPropertyListener::NewL(
+ const TUint aKeyId )
+ {
+ RUBY_DEBUG_BLOCKL( "CVccUiPsPropertyListener::NewL" );
+
+ CVccUiPsPropertyListener* self = new ( ELeave ) CVccUiPsPropertyListener(
+ aKeyId );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+
+ return self;
+ }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CVccUiPsPropertyListener::~CVccUiPsPropertyListener()
+ {
+ RUBY_DEBUG0( "CVccUiPsPropertyListener::~CVccUiPsPropertyListener() - ENTER" );
+ Cancel();
+ iProperty.Close();
+ iObservers.Close();
+ RUBY_DEBUG0( "CVccUiPsPropertyListener::~CVccUiPsPropertyListener() - EXIT" );
+ }
+
+// -----------------------------------------------------------------------------
+// Adds a Vcc property observer to the list of observers
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVccUiPsPropertyListener::AddObserverL(
+ MVccPsPropertyListenerObserver& aObserver )
+ {
+ RUBY_DEBUG_BLOCKL( "CVccUiPsPropertyListener::AddObserverL" );
+
+ if ( iObservers.Find( &aObserver ) == KErrNotFound )
+ {
+ User::LeaveIfError( iObservers.Append( &aObserver ) );
+ }
+
+ // And then start. Start() do not start if there are no observers
+ // so we must also try to start here after adding an observer
+ // (if somebody has called Start() before this method).
+ Start();
+ }
+
+// -----------------------------------------------------------------------------
+// Removes observer
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVccUiPsPropertyListener::RemoveObserver(
+ MVccPsPropertyListenerObserver& aObserver )
+ {
+ RUBY_DEBUG_BLOCK( "CVccUiPsPropertyListener::RemoveObserver" );
+ TInt index = iObservers.Find( &aObserver );
+
+ if ( index != KErrNotFound )
+ {
+ iObservers.Remove( index );
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// Fetches the current value of the key
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CVccUiPsPropertyListener::CurrentValue()
+ {
+ RUBY_DEBUG_BLOCK( "CVccUiPsPropertyListener::CurrentValue" );
+ TInt value( KErrNotFound );
+ iProperty.Get( iCategoryId, iKeyId, value );
+ return value;
+ }
+
+// -----------------------------------------------------------------------------
+// Subscribes to property
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CVccUiPsPropertyListener::Start()
+ {
+ RUBY_DEBUG_BLOCK( "CVccUiPsPropertyListener::Start" );
+
+ // If no obsevers, do not start.
+ if ( iObservers.Count() == 0 )
+ {
+ return;
+ }
+
+ // Subscribe to get updates.
+ if ( !IsActive() )
+ {
+ iProperty.Subscribe( iStatus );
+ SetActive();
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// Cancels the outstanding subsription request
+// -----------------------------------------------------------------------------
+//
+void CVccUiPsPropertyListener::DoCancel()
+ {
+ RUBY_DEBUG0( "CVccUiPsPropertyListener::DoCancel - ENTER" );
+ iProperty.Cancel();
+ RUBY_DEBUG0( "CVccUiPsPropertyListener::DoCancel - EXIT" );
+ }
+
+// -----------------------------------------------------------------------------
+// Handles the request completion event
+// -----------------------------------------------------------------------------
+//
+void CVccUiPsPropertyListener::RunL()
+ {
+ RUBY_DEBUG_BLOCKL( "CVccUiPsPropertyListener::RunL" );
+ TInt err = iStatus.Int();
+
+ // Re-issue the subscription request if there are observers.
+ // Do this before notifying our observser so that we get all
+ // notifications (if the rest of the RunL takes some time).
+
+ if ( iObservers.Count() > 0 )
+ {
+ Start();
+ }
+
+ if ( KErrNone == err )
+ {
+ // Notify property changes to observers.
+ NotifyObserversL();
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// Notifies all observers about the changed value
+// -----------------------------------------------------------------------------
+//
+void CVccUiPsPropertyListener::NotifyObserversL()
+ {
+ RUBY_DEBUG_BLOCKL( "CVccUiPsPropertyListener::NotifyObserversL" );
+
+ TInt value = CurrentValue();
+
+ RUBY_DEBUG1( " -value[%d]", value);
+
+ for ( TInt i(0) ; i < iObservers.Count() ; i++ )
+ {
+ MVccPsPropertyListenerObserver* observer = iObservers[i];
+
+ if ( observer )
+ {
+ observer->VccPropertyChangedL( iKeyId, value );
+ }
+ }
+ }