diff -r f15ac8e65a02 -r 779871d1e4f4 vtuis/videotelui/src/cvtuidtmfbuffer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/src/cvtuidtmfbuffer.cpp	Wed Sep 01 12:29:12 2010 +0100
@@ -0,0 +1,218 @@
+/*
+* 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:   Implementation of DTMF buffer class
+*
+*/
+
+
+#include <coemain.h>
+#include <cvtlogger.h>
+#include "cvtuidtmfbuffer.h"
+#include "tvtuiwsevent.h"
+#include "VtUiUtility.h"
+
+// Time after which buffer will be automatically reset (4 seconds).
+const TInt KBufferResetInterval = 4 * 1000000;
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::NewL
+// ---------------------------------------------------------------------------
+//
+CVtUiDTMFBuffer* CVtUiDTMFBuffer::NewL( const CCoeEnv& aCoeEnv )
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.NewL" )
+    CVtUiDTMFBuffer* self = new ( ELeave ) CVtUiDTMFBuffer( aCoeEnv );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); // self
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.NewL" )
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::~CVtUiDTMFBuffer
+// ---------------------------------------------------------------------------
+//
+CVtUiDTMFBuffer::~CVtUiDTMFBuffer()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.~" )
+    Cancel();
+    iTimer.Close();
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.~" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::Append
+// ---------------------------------------------------------------------------
+//
+TBool CVtUiDTMFBuffer::Append( TChar aChar )
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.Append" )
+    TBool result( EFalse );
+    if ( VtUiUtility::IsDTMFCharacter( aChar ) )
+        {
+        if ( iBuffer.Length() == iBuffer.MaxLength() )
+            {
+            iBuffer = iBuffer.Right( 1 );
+            }
+        iBuffer.Append( aChar );
+        StartTimer();
+        result = ETrue;
+        }
+    __VTPRINTEXITR( "CVtUiDTMFBuffer.Append %d", result )
+    return result;
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::Reset
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::Reset()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.Reset" )
+    Cancel();
+    ResetBuffer();
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.Reset" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::Activate
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::Activate()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.Activate" )
+    TVtUiWsEvent< MVtUiNumberSource > event(
+        EVtUiWsEventNumberSourceActivate, this );
+    iCoeEnv.WsSession().SendEventToWindowGroup(
+        iCoeEnv.RootWin().WindowGroupId(), event );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.Activate" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::Deactivate
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::Deactivate()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.Deactivate" )
+    TVtUiWsEvent< MVtUiNumberSource > event(
+        EVtUiWsEventNumberSourceDeactivate, this );
+    iCoeEnv.WsSession().SendEventToWindowGroup(
+        iCoeEnv.RootWin().WindowGroupId(), event );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.Deactivate" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::GetContents
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::GetContents( TDes& aContents ) const
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.GetContents" )
+    const TInt length( aContents.MaxLength() < iBuffer.Length() ?
+            aContents.MaxLength() : iBuffer.Length() );
+    if ( length )
+        {
+        aContents = iBuffer.Mid( 0, length );
+        }
+    else
+        {
+        aContents.Zero();
+        }
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.GetContents" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::DoCancel
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::DoCancel()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.DoCancel" )
+    iTimer.Cancel();
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.DoCancel" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::RunL
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::RunL()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.RunL" )
+    TimerExpired( iStatus.Int() );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.RunL" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::CVtUiDTMFBuffer
+// ---------------------------------------------------------------------------
+//
+CVtUiDTMFBuffer::CVtUiDTMFBuffer( const CCoeEnv& aCoeEnv ) :
+    CActive( EPriorityStandard ), iCoeEnv( aCoeEnv )
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.ctor" )
+    CActiveScheduler::Add( this );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.ctor" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::ConstructL()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.ConstructL" )
+    User::LeaveIfError( iTimer.CreateLocal() );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.ConstructL" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::StartTimer
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::StartTimer()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.StartTimer" )
+    Cancel();
+    SetActive();
+    iTimer.After( iStatus, KBufferResetInterval );
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.StartTimer" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::TimerExpired
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::TimerExpired( TInt aError )
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.TimerExpired" )
+    if ( aError != KErrCancel )
+        {
+        ResetBuffer();
+        }
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.TimerExpired" )
+    }
+
+// ---------------------------------------------------------------------------
+// CVtUiDTMFBuffer::ResetBuffer
+// ---------------------------------------------------------------------------
+//
+void CVtUiDTMFBuffer::ResetBuffer()
+    {
+    __VTPRINTENTER( "CVtUiDTMFBuffer.ResetBuffer" )
+    iBuffer.Zero();
+    __VTPRINTEXIT( "CVtUiDTMFBuffer.ResetBuffer" )
+    }