diff -r e7aa27f58ae1 -r 578830873419 emailuis/nmailuiengine/src/nmoperation.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailuiengine/src/nmoperation.cpp	Fri Apr 16 14:51:52 2010 +0300
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 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:
+*
+*/
+
+#include "nmuiengineheaders.h"
+
+#include <QTimer>
+
+/*!
+    \brief Constructor
+    Constructor of NmOperation
+    \param parent Parent object.
+ */
+NmOperation::NmOperation(QObject *parent)
+: QObject(parent),
+mProgress(0),
+mIsRunning(true)
+{
+    // operation is started immediately
+    mTimer = new QTimer(this);
+    mTimer->setSingleShot(TRUE);
+    connect(mTimer, SIGNAL(timeout()), this, SLOT(runAsyncOperation()));
+    mTimer->start(1);
+}
+
+/*!
+    \brief Destructor
+    Does nothing
+ */
+NmOperation::~NmOperation()
+{
+}
+
+/*!
+    \brief Tells whether the operation is running or not
+ */
+bool NmOperation::isRunning() const
+{
+    return mIsRunning;
+}
+
+/*!
+    \brief Slot, complete
+    The performer of the asynchronous function call should use this slot when
+    the operation is completed, this will emit the actionCompleted signal * 
+    \param result Result from operation
+ */
+void NmOperation::completeOperation(int result)
+{
+    // Operation is completed, emit the signal
+    doCompleteOperation();
+    emit this->operationCompleted(result);
+    mIsRunning = false;
+}
+
+/*!
+    \brief Slot, cancel
+    The observer of the asynchronous function call should use this slot if it
+    wants to cancel the ongoing operation, it will emit the actionCancelled signal
+ */
+void NmOperation::cancelOperation()
+{
+    // Operation is canceled, emit the signal
+    mTimer->stop();
+    this->doCancelOperation();
+    emit this->operationCancelled();
+    mIsRunning = false;
+}
+/*!
+    \brief Slot, update progress
+    The performer of the asynchronous function call should use this slot when
+    updating the operation progress, this will emit the progressChanged signal
+ */
+void NmOperation::updateOperationProgress(int progress)
+{
+    mProgress = progress;
+    this->doUpdateOperationProgress();
+    emit this->operationProgressChanged(mProgress);
+}
+
+/*!
+    \brief Virtual function to be implemented by subclasses
+    This function is called from the completeAction before the signal is
+    emitted. Derived class can override this is some special actions
+    are needed.
+ */ 
+void NmOperation::doCompleteOperation()
+{
+    
+}
+
+/*!
+    \brief Virtual function to be implemented by subclasses
+    This function is called from the cancelAction after the trigger timer
+    and before the signal is emitted. Derived class can override this
+    and put its own cancellation operations here.
+ */
+void NmOperation::doCancelOperation()
+{
+}
+
+/*!
+    \brief Virtual function to be implemented by subclasses
+    This function is called from the updateProgress after the progress
+    value has been updated and before the signal is emitted. Derived class
+    can override this.
+ */
+void NmOperation::doUpdateOperationProgress()
+{
+}
+
+