diff -r 000000000000 -r 2e3d3ce01487 contextframework/cfwplugins/displaysourceplugin/src/displayservicelight.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contextframework/cfwplugins/displaysourceplugin/src/displayservicelight.cpp	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,169 @@
+/*
+* Copyright (c) 2009-2009 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:   CDisplayServiceLight class implementation.
+*
+*/
+
+
+// SYSTEM INCLUDES
+#include <cfcontextobject.h>
+#include <cfcontextinterface.h>
+
+// USER INCLUDES
+#include "displayservicelight.h"
+#include "displaysourcecontextdef.h"
+#include "trace.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// C++ constructor.
+// ---------------------------------------------------------------------------
+//
+CDisplayServiceLight::CDisplayServiceLight( MCFContextInterface& aCF ):
+    CDisplayServiceBase( CDisplayServiceBase::EDisplayLightStatus, aCF )
+    {
+    FUNC_LOG;
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian 2nd phase constructor.
+// ---------------------------------------------------------------------------
+//
+void CDisplayServiceLight::ConstructL()
+    {
+    FUNC_LOG;
+
+    // Call base class
+    CDisplayServiceBase::ConstructL();
+    
+    // Initialize context object
+    iContext->SetSourceL( KDisplaySource );
+    iContext->SetTypeL( KDisplayStatusType );
+    
+    // Define context:
+    // Device: Display.Status.Light
+    TInt err = iCF.DefineContext(
+        KDisplaySource, KDisplayStatusType, KDisplayStatusTypeSec );
+    User::LeaveIfError( err );
+    
+    // Initialize light client
+    iLight = CHWRMLight::NewL( this );
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian two phased constructor.
+// ---------------------------------------------------------------------------
+//
+CDisplayServiceLight* CDisplayServiceLight::NewL( MCFContextInterface& aCF )
+    {
+    FUNC_LOG;
+
+    CDisplayServiceLight* self = CDisplayServiceLight::NewLC( aCF );
+    CleanupStack::Pop( self );
+    
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian two phased constructor.
+// Leaves pointer in the cleanup stack.
+// ---------------------------------------------------------------------------
+//
+CDisplayServiceLight* CDisplayServiceLight::NewLC( MCFContextInterface& aCF )
+    {
+    FUNC_LOG;
+
+    CDisplayServiceLight* self = new ( ELeave ) CDisplayServiceLight( aCF );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// C++ destructor.
+// ---------------------------------------------------------------------------
+//
+CDisplayServiceLight::~CDisplayServiceLight()
+    {
+    FUNC_LOG;
+    
+    delete iLight;
+    }
+
+//------------------------------------------------------------------------------
+// CDisplayServiceLight::StartL
+//------------------------------------------------------------------------------
+//
+void CDisplayServiceLight::StartL()
+    {
+    FUNC_LOG;
+
+    // Get current display light status value and publish it
+    PublishContext( iLight->LightStatus( CHWRMLight::EPrimaryDisplay ) );
+    }
+
+//------------------------------------------------------------------------------
+// CDisplayServiceLight::Stop
+//------------------------------------------------------------------------------
+//
+void CDisplayServiceLight::Stop()
+    {
+    FUNC_LOG;
+    
+    // Nothing to do here.
+    }
+
+//----------------------------------------------------------------------------
+// CDisplayServiceLight::LightStatusChanged
+//----------------------------------------------------------------------------
+//
+void CDisplayServiceLight::LightStatusChanged(
+    TInt aTarget,
+    CHWRMLight::TLightStatus aStatus )
+    {
+    FUNC_LOG;
+
+    if ( aTarget & CHWRMLight::EPrimaryDisplay )
+        {
+        PublishContext( aStatus );
+        }
+    }
+
+//------------------------------------------------------------------------------
+// CDisplayServiceLight::PublishContext
+//------------------------------------------------------------------------------
+//
+void CDisplayServiceLight::PublishContext( CHWRMLight::TLightStatus aStatus )
+    {
+    FUNC_LOG;
+    
+    INFO_1( "Primary display light status = %d", aStatus );
+
+    if ( aStatus >= 0 &&
+         aStatus < KDisplayStatusTypeValueCount &&
+         aStatus != iCurrentStatus )
+        {
+        // Store new status
+        iCurrentStatus = aStatus;
+        
+        // Publish context, ignore error values
+        TRAP_IGNORE( iContext->SetValueL(
+            TPtrC( KDisplayStatusTypeValues[aStatus] ) ) );
+        iCF.PublishContext( *iContext, iThread );
+        }
+    }
+
+// End of file