examples/ForumNokia/ThreadAndActiveObjectsEx/src/listboxrefreshtimer.cpp

/*
 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 *    
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *    
 *  * Redistributions of source code must retain the above copyright notice, this
 *    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.
 *  * Neither the name of Nokia Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *    
 *    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *    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
 *    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *    
 *    Description:  
 */


// INCLUDES
#include <e32base.h> 
#include "aknnotewrappers.h"
#include "DeviceListContainer.h"

// Listbox screen update interval
const TInt KSecond = 1000 * 1000;

#include "ListboxRefreshTimer.h"

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::CListboxRefreshTimer()
//
// Constructor.
// ----------------------------------------------------------------------------
CListboxRefreshTimer::CListboxRefreshTimer(CDeviceListContainer* aListBox)
        : CTimer(CActive::EPriorityStandard), iListbox(aListBox) 
        {
        }

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::~CListboxRefreshTimer()
//
// Destructor.
// ----------------------------------------------------------------------------
CListboxRefreshTimer::~CListboxRefreshTimer()
        {
        Cancel();
        }


CListboxRefreshTimer* CListboxRefreshTimer::NewL(
                                            CDeviceListContainer* aListBox )
        {
        CListboxRefreshTimer* self = CListboxRefreshTimer::NewLC(aListBox);
        CleanupStack::Pop(self);
        return self;
        }

CListboxRefreshTimer* CListboxRefreshTimer::NewLC(
                                           CDeviceListContainer* aListBox )
        {
        CListboxRefreshTimer* self = new (ELeave) CListboxRefreshTimer(aListBox);
        CleanupStack::PushL(self);
        
        self->ConstructL();
        return self;
        }

// Standard Symbian OS 2nd phase constructor
void CListboxRefreshTimer::ConstructL()
        {
        CTimer::ConstructL();
        CActiveScheduler::Add(this);
        }

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::StartL()
//
// Start updating the listbox.
// ----------------------------------------------------------------------------
void CListboxRefreshTimer::StartL()
        {
        After( KSecond );       
        }

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::RunL()
// ----------------------------------------------------------------------------
void CListboxRefreshTimer::RunL()
        {
        // Update the listbox.
        iListbox->HandleChangedL();
        // Wait for a while and run the same function again 
        After( KSecond );
        }

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::DoCancel()
//
// Cancel and stop the timer. 
// ----------------------------------------------------------------------------
void CListboxRefreshTimer::DoCancel()   
        {
        CTimer::DoCancel();
        }

// ----------------------------------------------------------------------------
// CListboxRefreshTimer::RunError(TInt)
// ----------------------------------------------------------------------------
TInt CListboxRefreshTimer::RunError(TInt)
        {
        return KErrNone;
        }

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