--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/securitydialogs/lockapp/src/lockapppubsubobserver.cpp Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,146 @@
+/*
+* Copyright (c) 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: Publish & Subscribe key observer
+ *
+*/
+
+
+#include "lockapppubsubobserver.h"
+#include "lockapputils.h"
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+CLockAppPubSubObserver* CLockAppPubSubObserver::NewL(MLockAppObserverInterface* aObserver,
+ TUid aPubSubUid, TUint32 aKeyId )
+ {
+ CLockAppPubSubObserver* self = new (ELeave) CLockAppPubSubObserver(aObserver, aPubSubUid, aKeyId);
+ CleanupStack::PushL( self );
+ self->ConstructL( );
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// C++ default constructor
+// ---------------------------------------------------------------------------
+CLockAppPubSubObserver::CLockAppPubSubObserver(MLockAppObserverInterface* aObserver,
+ TUid aPubSubUid, TUint32 aKeyId ) :
+ CActive( 0 ),
+ iObserver( aObserver ),
+ iPubSubUid( aPubSubUid ),
+ iKeyId( aKeyId ),
+ iValue( NULL )
+ {
+ }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+CLockAppPubSubObserver::~CLockAppPubSubObserver( )
+ {
+ Cancel( );
+ iProperty.Close( );
+ }
+
+// ---------------------------------------------------------------------------
+// Symbian OS default constructor
+// ---------------------------------------------------------------------------
+void CLockAppPubSubObserver::ConstructL( )
+ {
+ // Add this active object to the scheduler.
+ CActiveScheduler::Add( this );
+ TInt err = iProperty.Attach( iPubSubUid, iKeyId );
+ ERROR_2(err, "CLockAppPubSubObserver::ConstructL - Property(%d,%d) attach", iPubSubUid, iKeyId);
+ User::LeaveIfError( err );
+ Start( );
+ }
+
+// ---------------------------------------------------------------------------
+// Starts listening
+// ---------------------------------------------------------------------------
+TInt CLockAppPubSubObserver::Start( )
+ {
+ if ( !IsActive( ) )
+ {
+ iStatus = KRequestPending;
+ iProperty.Subscribe( iStatus );
+ SetActive( );
+ return KErrNone;
+ }
+ else
+ {
+ return KErrInUse;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// Stops listening
+// ---------------------------------------------------------------------------
+void CLockAppPubSubObserver::Stop( )
+ {
+ if ( IsActive( ) )
+ {
+ Cancel( );
+ iProperty.Cancel( );
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// Gets value of the key from P&S.
+// ---------------------------------------------------------------------------
+TInt CLockAppPubSubObserver::GetKeyValue(TInt& aValue )
+ {
+ RDebug::Printf( "%s %s (%u) 1=%x", __FILE__, __PRETTY_FUNCTION__, __LINE__, 1 );
+ return iProperty.Get( aValue );
+ }
+
+// ---------------------------------------------------------------------------
+// Sets a value for the key in P&S.
+// ---------------------------------------------------------------------------
+TInt CLockAppPubSubObserver::SetKeyValue(TInt aValue )
+ {
+ RDebug::Printf( "%s %s (%u) aValue=%x", __FILE__, __PRETTY_FUNCTION__, __LINE__, aValue );
+ return iProperty.Set( aValue );
+ }
+
+// ---------------------------------------------------------------------------
+// CLockAppPubSubObserver::RunL()
+// ---------------------------------------------------------------------------
+void CLockAppPubSubObserver::RunL( )
+ {
+ TInt value( NULL);
+ iProperty.Get( value );
+ if ( iValue != value )
+ {
+ // on value change
+ iValue = value;
+ if ( iObserver )
+ {
+ iObserver->HandlePubSubNotify( iPubSubUid, iKeyId, iValue );
+ }
+ }
+ // re-subscribe to events
+ Start( );
+ }
+
+// ---------------------------------------------------------------------------
+// Cancels event listening
+// ---------------------------------------------------------------------------
+void CLockAppPubSubObserver::DoCancel( )
+ {
+ iProperty.Cancel( );
+ }
+
+// End of file