--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/satengine/SatServer/Commands/DisplayTextCmd/src/CClearScreenHandler.cpp	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,198 @@
+/*
+* Copyright (c) 2002-2007 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:  ClearScreen handler is responsible for clearing screen when
+*                DisplayText has sent immediate response and it is still active
+*                when any other command starts to execute.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "MSatUtils.h"
+#include    "SatSTypes.h"
+#include    "CClearScreenHandler.h"
+#include    "SatLog.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::CClearScreenHandler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CClearScreenHandler::CClearScreenHandler( MSatUtils& aUtils ) :
+    iUtils( aUtils )
+    {
+    LOG( SIMPLE, "DISPLAYTEXT: \
+        CClearScreenHandler::CClearScreenHandler calling - exiting" )
+    }
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CClearScreenHandler::ConstructL()
+    {
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::ConstructL calling" )
+
+    // Set immediate response to false.
+    iImmediateResponse = EFalse;
+
+    // List all events we should listen.
+    iUtils.RegisterL( this, MSatUtils::ESetUpMenuExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESelectItemExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESetUpCallExecuting );
+    iUtils.RegisterL( this, MSatUtils::EDisplayTextExecuting );
+    iUtils.RegisterL( this, MSatUtils::ELaunchBrowserExecuting );
+    iUtils.RegisterL( this, MSatUtils::EGetInputExecuting );
+    iUtils.RegisterL( this, MSatUtils::EGetInkeyExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESendDtmfExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESendSsExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESendUssdExecuting );
+    iUtils.RegisterL( this, MSatUtils::EPlayToneExecuting );
+    iUtils.RegisterL( this, MSatUtils::ERefreshExecuting );
+    iUtils.RegisterL( this, MSatUtils::ECallControlExecuting );
+    iUtils.RegisterL( this, MSatUtils::ESendSmExecuting );
+    iUtils.RegisterL( this, MSatUtils::EMoSmControlExecuting );
+
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::ConstructL exiting" )
+    }
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CClearScreenHandler* CClearScreenHandler::NewL( MSatUtils& aUtils )
+    {
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::NewL calling" )
+
+    CClearScreenHandler* self =
+        new ( ELeave ) CClearScreenHandler( aUtils );
+
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::NewL exiting" )
+    return self;
+    }
+
+
+// Destructor
+CClearScreenHandler::~CClearScreenHandler()
+    {
+    LOG( SIMPLE,
+        "DISPLAYTEXT: CClearScreenHandler::~CClearScreenHandler calling" )
+
+    // Unregister this as an event observer
+    iUtils.UnregisterEventObserver( this );
+
+    LOG( SIMPLE,
+        "DISPLAYTEXT: CClearScreenHandler::~CClearScreenHandler exiting" )
+    }
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::UpdateImmediateState
+// Updates immediate response state.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CClearScreenHandler::UpdateImmediateState( TBool aState )
+    {
+    LOG( SIMPLE,
+        "DISPLAYTEXT: CClearScreenHandler::UpdateImmediateState calling" )
+
+    iImmediateResponse = aState;
+
+    LOG( SIMPLE,
+        "DISPLAYTEXT: CClearScreenHandler::UpdateImmediateState exiting" )
+    }
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::Event
+// Notification of an event.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CClearScreenHandler::Event( TInt aEvent )
+    {
+    LOG2( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::Event calling, \
+          aEvent: %d", aEvent )
+    LOG2( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::Event, \
+          iImmediateResponse: %d", iImmediateResponse )
+    // We don't have to do anything if immediate response is not active.
+    if ( iImmediateResponse )
+        {
+        switch ( aEvent )
+            {
+            case MSatUtils::ESetUpMenuExecuting:
+            case MSatUtils::ESelectItemExecuting:
+            case MSatUtils::ESetUpCallExecuting:
+            case MSatUtils::EDisplayTextExecuting:
+            case MSatUtils::ELaunchBrowserExecuting:
+            case MSatUtils::EGetInputExecuting:
+            case MSatUtils::EGetInkeyExecuting:
+            case MSatUtils::ESendDtmfExecuting:
+            case MSatUtils::ESendSsExecuting:
+            case MSatUtils::ESendUssdExecuting:
+            case MSatUtils::EPlayToneExecuting:
+            case MSatUtils::ERefreshExecuting:
+            case MSatUtils::ECallControlExecuting:
+            case MSatUtils::ESendSmExecuting:
+            case MSatUtils::EMoSmControlExecuting:
+                {
+                ClearScreen();
+                break;
+                }
+
+            default:
+                {
+                // Do nothing.
+                break;
+                }
+            }
+        }
+
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::Event exiting" )
+    }
+
+// -----------------------------------------------------------------------------
+// CClearScreenHandler::ClearScreen
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CClearScreenHandler::ClearScreen()
+    {
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::ClearScreen calling" )
+    LOG2( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::ClearScreen, \
+          iImmediateResponse: %d", iImmediateResponse )
+    // Clear the screen if immediate response is active.
+    //lint -e{961} Else block meaningless
+    if ( iImmediateResponse )
+        {
+        iUtils.NotifyUiEvent(
+            ESatSClearScreenEvent, ESatEventNone, KErrNone );
+        iImmediateResponse = EFalse;
+
+        iUtils.NotifyEvent( MSatUtils::ESustainedTextRemoved );
+        }
+
+    LOG( SIMPLE, "DISPLAYTEXT: CClearScreenHandler::ClearScreen exiting" )
+    }
+
+//  End of File