--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tactilefeedback/tactilefeedbackresolver/src/tactilepropertywatcher.cpp Thu Dec 17 08:53:38 2009 +0200
@@ -0,0 +1,184 @@
+/*
+* 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: Class for monitoring P&S property changes.
+* Part of: Tactile Feedback.
+*
+*/
+
+#include <e32std.h>
+#include <e32cmn.h>
+
+#include "tactilepropertywatcher.h"
+
+// ---------------------------------------------------------------------------
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+CTactilePropertyWatcher::CTactilePropertyWatcher(
+ MTactilePropertyObserver& aObserver,
+ const TUid aCategory,
+ const TInt aKey,
+ CActive::TPriority aPriority ) :
+ CActive( aPriority ),
+ iObserver( aObserver ),
+ iCategory( aCategory ),
+ iKey( aKey )
+
+ {
+ CActiveScheduler::Add( this );
+ }
+
+// ---------------------------------------------------------------------------
+// 2nd phase constructor.
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::ConstructL()
+ {
+ User::LeaveIfError( iProperty.Attach( iCategory, iKey ) );
+
+ Subscribe();
+ }
+
+// ---------------------------------------------------------------------------
+// 2-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CTactilePropertyWatcher* CTactilePropertyWatcher::NewL(
+ MTactilePropertyObserver& aObserver,
+ const TUid aCategory,
+ const TInt aKey,
+ CActive::TPriority aPriority )
+ {
+ CTactilePropertyWatcher* self = new (ELeave)
+ CTactilePropertyWatcher( aObserver, aCategory, aKey, aPriority );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CTactilePropertyWatcher::~CTactilePropertyWatcher()
+ {
+ Cancel();
+ iProperty.Close();
+ }
+
+// ---------------------------------------------------------------------------
+// Retrieves an integer value associated with this property.
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::GetL( TInt& aValue )
+ {
+ User::LeaveIfError( iProperty.Get( aValue ) );
+ }
+
+
+// ---------------------------------------------------------------------------
+// Retrieves a buffer associated with this property.
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::GetL( TDes8& aValue )
+ {
+ User::LeaveIfError( iProperty.Get( aValue ) );
+ }
+
+// ---------------------------------------------------------------------------
+// Retrieves an integer value associated with this property.
+// ---------------------------------------------------------------------------
+//
+TInt CTactilePropertyWatcher::Get( TInt& aValue )
+ {
+ return iProperty.Get( aValue );
+ }
+
+// ---------------------------------------------------------------------------
+// Retrieves a buffer associated with this property.
+// ---------------------------------------------------------------------------
+//
+TInt CTactilePropertyWatcher::Get( TDes8& aValue )
+ {
+ return iProperty.Get( aValue );
+ }
+
+// ---------------------------------------------------------------------------
+// Sets a P&S property to an integer value. The attached version of
+// RProperty::Set is used which is faster than using RProperty::Set
+// directly without attach.
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::SetL( const TInt aValue )
+ {
+ User::LeaveIfError( iProperty.Set( aValue ) );
+ }
+
+// ---------------------------------------------------------------------------
+// Sets a P&S property to a (large)bytearray value. The attached version of
+// RProperty::Set is used which is faster than using RProperty::Set
+// directly without attach.
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::SetL( const TDesC8& aValue )
+ {
+ User::LeaveIfError( iProperty.Set( aValue ) );
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::Subscribe()
+ {
+ if ( !IsActive() )
+ {
+ iProperty.Subscribe( iStatus );
+
+ SetActive();
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// From class CActive
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::DoCancel()
+ {
+ iProperty.Cancel();
+ }
+
+// ---------------------------------------------------------------------------
+// From class CActive
+// ---------------------------------------------------------------------------
+//
+void CTactilePropertyWatcher::RunL()
+ {
+ if ( iStatus.Int() == KErrNone )
+ {
+ // Subscribe first, then notify the observer that a property
+ // has changed.
+ Subscribe();
+ iObserver.PropertyChangedL( iCategory, iKey );
+ }
+ else if ( iStatus.Int() == KErrNotFound )
+ {
+ // We get here if a property gets deleted. We still need to subscribe
+ // to it because it might get redefined later.
+ Subscribe();
+ }
+ }
+
+// End of File