mulwidgets/mulsliderwidget/src/mulsliderlongtaptimer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:56:02 +0200
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/*
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* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Slider long tap timer
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 *
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*/
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// Include Files
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// Class header
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#include "mulsliderlongtaptimer.h"
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#include "mulsliderdefinitions.h"
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const int KInitialtimeinterval  = 200000;
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const int KTimeinterval = 100000;
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namespace Alf
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    {
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//---------------------------------------------------------------------------
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// Constructor
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//---------------------------------------------------------------------------
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//        
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MulSliderLongTapTimer::MulSliderLongTapTimer(
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    IMulSliderBaseElementInternal* aBaseElement)
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    :CActive(EPriorityStandard)
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    {
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    iTimer.CreateLocal();
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    iBaseElement = aBaseElement;
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    CActiveScheduler::Add(this);
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    iState = EStopped;
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    }
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//---------------------------------------------------------------------------
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// Destructor 
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//---------------------------------------------------------------------------
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//
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MulSliderLongTapTimer::~MulSliderLongTapTimer()
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    {
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    Stop();
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    iTimer.Close();
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    }
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//---------------------------------------------------------------------------
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// Activates the timer. 
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//---------------------------------------------------------------------------
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//  
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void MulSliderLongTapTimer::Start()
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    {
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    if (!IsActive())
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        {
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        iTimer.After(iStatus, TTimeIntervalMicroSeconds32(KInitialtimeinterval));
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        SetActive();
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        }
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    iState = ERunning;    
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    }
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//---------------------------------------------------------------------------
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// stops the timer. 
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//---------------------------------------------------------------------------
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// 
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void MulSliderLongTapTimer::Stop()
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    {
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    Cancel();
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    iState = EStopped;
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    }
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//---------------------------------------------------------------------------
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// Handles an active object's request completion event.
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//---------------------------------------------------------------------------
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//     
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void MulSliderLongTapTimer::RunL()
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    {
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    IMulSliderBaseElementInternal* elementInternal = 
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        static_cast<IMulSliderBaseElementInternal*> (
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        iBaseElement->makeInterface(IMulSliderBaseElementInternal::type()));
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    if(elementInternal)
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        {
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        // call handleLongTap of element to handle the longtap 
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        elementInternal->handleLongTap();
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        }    
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    if (iState == ERunning)
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        {
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        iTimer.After(iStatus, TTimeIntervalMicroSeconds32(KTimeinterval));    
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        SetActive();
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        }
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    }
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//---------------------------------------------------------------------------
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// Implements cancellation of an outstanding request.
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//---------------------------------------------------------------------------
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// 
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void MulSliderLongTapTimer::DoCancel()
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    {
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    iTimer.Cancel();
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    }
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   }
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