--- /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