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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: Slideshow backlight timer management..
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*
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*/
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#include "shwslideshowbacklighttimer.h"
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#include <centralrepository.h>// for peripheral display timeout setting
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#include <settingsinternalcrkeys.h> // display timeout setting keys
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#include <glxlog.h>
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#include <glxtracer.h>
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#include "shwcallback.h"
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namespace
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{
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const TInt KMicroSecondsInASecond = 1000000;
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// @ref: Minimum slideshow transition delay
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const TInt KMinTimeoutDelay = 2; // secs
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::CShwSlideshowBackLightTimer
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CShwSlideshowBackLightTimer::CShwSlideshowBackLightTimer()
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{
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CShwSlideshowBackLightTimer* CShwSlideshowBackLightTimer::NewL()
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{
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TRACER("CShwSlideshowBackLightTimer::NewL");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::NewL");
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CShwSlideshowBackLightTimer* self = new( ELeave )
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CShwSlideshowBackLightTimer();
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CleanupStack::PushL( self );
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self->ConstructL();
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CleanupStack::Pop( self );
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return self;
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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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CShwSlideshowBackLightTimer::~CShwSlideshowBackLightTimer()
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{
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TRACER("CShwSlideshowBackLightTimer::~CShwSlideshowBackLightTimer");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::~CShwSlideshowBackLightTimer");
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delete iPeriodic;
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CShwSlideshowBackLightTimer::ConstructL()
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{
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TRACER("CShwSlideshowBackLightTimer::ConstructL");
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GLX_LOG_ENTRY_EXIT("CShwSlideshowBackLightTimer::ConstructL");
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CRepository* lightsRepo = CRepository::NewLC( KCRUidPeripheralSettings );
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// Get display light's timeout value (in seconds )
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lightsRepo->Get( KSettingsDisplayLightsTimeout, iSettingsDelay );
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GLX_LOG_INFO1("CShwSlideshowBackLightTimer, lights timeout = %d",
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iSettingsDelay );
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CleanupStack::PopAndDestroy( lightsRepo );
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CRepository* scrSaverRepo = CRepository::NewLC( KCRUidPersonalizationSettings );
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// Get screen saver's timeout value (in seconds)
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TInt screenSaverTimeout = 0;
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scrSaverRepo->Get( KSettingsScreenSaverPeriod, screenSaverTimeout );
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GLX_LOG_INFO1("CShwSlideshowBackLightTimer, scr saver timeout = %d",
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screenSaverTimeout );
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CleanupStack::PopAndDestroy( scrSaverRepo );
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// Take the smaller of the two timeout values
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iSettingsDelay = Min( iSettingsDelay, screenSaverTimeout );
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// Set the timeout delay to minimum value as it can not be zero
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if (iSettingsDelay == 0)
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{
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iSettingsDelay = KMinTimeoutDelay;
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}
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// Convert the value to microseconds
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iSettingsDelay *= KMicroSecondsInASecond;
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// Halve the value to ensure out timer kicks beforehand
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iSettingsDelay /= 2;
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// Create a timer
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iPeriodic = CPeriodic::NewL( CPeriodic::EPriorityStandard );
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::Tick - handler code for the timer
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// -----------------------------------------------------------------------------
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//
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TInt CShwSlideshowBackLightTimer::Tick()
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{
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// Timer must be reset to prevent screen saver to appear
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User::ResetInactivityTime();
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iStartTime.HomeTime();
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return 1; // continues always
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::StartL
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// -----------------------------------------------------------------------------
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//
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void CShwSlideshowBackLightTimer::StartL()
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{
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TRACER("CShwSlideshowBackLightTimer::StartL()");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::StartL" );
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iStartTime.HomeTime();
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User::ResetInactivityTime();
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iPeriodic->Cancel(); // in case it actually was running
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iPeriodic->Start(iSettingsDelay, iSettingsDelay,
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TShwCallBack<CShwSlideshowBackLightTimer,
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&CShwSlideshowBackLightTimer::Tick> (this));
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::Cancel
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// -----------------------------------------------------------------------------
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//
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void CShwSlideshowBackLightTimer::Cancel()
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{
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TRACER("CShwSlideshowBackLightTimer::Cancel()");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::Cancel" );
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User::ResetInactivityTime();
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iPeriodic->Cancel();
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::IsRunning
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// -----------------------------------------------------------------------------
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//
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TBool CShwSlideshowBackLightTimer::IsRunning()
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{
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TRACER("CShwSlideshowBackLightTimer::IsRunning()");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::IsRunning" );
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return iPeriodic->IsActive();
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}
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// -----------------------------------------------------------------------------
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// CShwSlideshowBackLightTimer::Delay
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// -----------------------------------------------------------------------------
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//
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TInt CShwSlideshowBackLightTimer::Delay()
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{
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TRACER("CShwSlideshowBackLightTimer::Delay()");
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GLX_LOG_INFO("CShwSlideshowBackLightTimer::Delay" );
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return iSettingsDelay;
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}
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