examples/Base/IPC/condvar/condvarlocal/src/userinterface.cpp

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// Copyright (c) 2008-2009 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:
// Contains the definition of member functions of the CUserInterface class.
//



#include "userinterface.h"

CUserInterface* CUserInterface::NewL(CConsoleBase* aConsole,CProducer* aProducer)
        {
        CUserInterface* self = new (ELeave)CUserInterface;
        self->Initialize(aConsole,aProducer);
        return self;
        }

void CUserInterface::Initialize(CConsoleBase* aConsole,CProducer* aProducer)
        {
        iConsole = aConsole;
        iProducer = aProducer;
        CActiveScheduler::Add(this);
        }

CUserInterface::CUserInterface():CActive(CActive::EPriorityUserInput)
        {
        }

void CUserInterface::RunL()
        {
        // Get the key code.
        TUint8 option = iConsole->KeyCode();
        // Print the selected option.
        _LIT(KTextFormat,"%c\n");
        iConsole->Printf(KTextFormat,option);
        switch(option)
                {
                case 'p':
                        {
                        // If the user input is 'p', insert tokens into the CUserInterface::iQueue queue.
                        iProducer->Produce();
                        ReadFunc();
                        }
                        break;
                case 'd':
                        {
                        // If the user input is 'd', display the contents of the CUserInterface::iQueue queue.
                        iProducer->Display();
                        ReadFunc();
                        }
                        break;
                default:
                        {
                        // Stop the active scheduler for other user inputs.
                        CActiveScheduler::Stop();
                        }
                }
        }

void CUserInterface::ReadFunc()
        {
        // Print the menu.
        _LIT(KTxtOption,"***\nMenu:\n[p]roduce a token\n[d]isplay the contents of the queue\nAny other key to stop\n***\n");
        iConsole->Printf(KTxtOption);
        // Wait for a key press event.
        iConsole->Read(iStatus);
        SetActive();
        }

void CUserInterface::DoCancel()
        {
        if(IsActive())
                {
                // Cancel any outstanding read requests.
                iConsole->ReadCancel();
                }
        }

CUserInterface::~CUserInterface()
        {
        DoCancel();
        }

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