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

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/*
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  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
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  may be used to endorse or promote products derived from this software
  without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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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