core/src/console.cpp
changeset 0 7f656887cf89
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/src/console.cpp	Wed Jun 23 15:52:26 2010 +0100
@@ -0,0 +1,89 @@
+// console.cpp
+// 
+// Copyright (c) 2006 - 2010 Accenture. All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the "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:
+// Accenture - Initial contribution
+//
+
+#include <e32cons.h>
+#include <fshell/ioutils.h>
+#include "console.h"
+
+
+//
+// CConsoleReader.
+//
+
+CConsoleReader* CConsoleReader::NewL(RIoConsoleReadHandle& aStdin, MConsoleObserver& aObserver)
+	{
+	CConsoleReader* self = new(ELeave) CConsoleReader(aStdin, aObserver);
+	self->Queue();
+	return self;
+	}
+
+CConsoleReader::~CConsoleReader()
+	{
+	Cancel();
+	}
+
+CConsoleReader::CConsoleReader(RIoConsoleReadHandle& aStdin, MConsoleObserver& aObserver)
+	: CActive(CActive::EPriorityStandard), iStdin(aStdin), iObserver(aObserver)
+	{
+	CActiveScheduler::Add(this);
+	}
+
+void CConsoleReader::Queue()
+	{
+	TInt result = iStdin.AttachedToConsole();
+	if (result > 0)
+		{
+		iRawRead = ETrue;
+		iStdin.Read(iRawReadBuf, iStatus);
+		}
+	else if (result == 0)
+		{
+		iRawRead = EFalse;
+		iStdin.WaitForKey(iStatus);
+		}
+	else
+		{
+		// This seems to happen if the console failed to construct
+		// [I've seen a E32USER-CBase 45 panic as a result of this call so possibly it's not always the right thing to do (I added this in the first place). -TomS]
+		iObserver.CoHandleError(result);
+		return;
+		}
+	SetActive();
+	}
+
+void CConsoleReader::RunL()
+	{
+	TInt err = iStatus.Int();
+	if (err)
+		{
+		iObserver.CoHandleError(err);
+		}
+	else
+		{
+		TUint keyCode = iRawRead ? iRawReadBuf[0] : iStdin.KeyCode();
+		TUint modifiers = iRawRead ? 0 : iStdin.KeyModifiers();
+		iObserver.CoHandleKey(keyCode, modifiers);
+		}
+	Queue();
+	}
+
+void CConsoleReader::DoCancel()
+	{
+	if (iRawRead)
+		{
+		iStdin.ReadCancel();
+		}
+	else
+		{
+		iStdin.WaitForKeyCancel();
+		}
+	}