/*
* Copyright (c) 2007 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: Provides emergency call support for keyguard/devicelock
*
*/
#ifndef __LOCKAPPSTATEDETECTOR_H__
#define __LOCKAPPSTATEDETECTOR_H__
// INCLUDES
#include "lockappstateobserver.h"
#include <AknEcs.h> // MAknEcsObserver and CAknEcsDetector
// FORWARD DECLARATIONS
class CLockAppEcsNote;
/**
* CLockAppEcsDetector class owns emergency note and emergency detector.
* Taps directly to AppUi windowserver event source for receiving key events.
* If user presses emergency numbers defined in SIM, emergency note is shown.
* Only works when keyguard or devicelock is activated.
*
* @lib lockapp
* @since 5.0
* @author Joona Petrell
* @author Tamas Koteles
*/
class CLockAppEcsDetector : public CBase, public MLockAppStateObserver, public MAknEcsObserver
{
public:
/**
* Two-phased constructor.
*/
static CLockAppEcsDetector* NewL( );
/**
* Destructor
*/
~CLockAppEcsDetector( );
private:
/**
* C++ default constructor.
*/
CLockAppEcsDetector( );
/**
* Second constructor that can fail (leave).
*/
void ConstructL( );
public:
/**
* From @c CLockAppStateObserver. Method handles the lock state changes.
*
* @param aLockStatus The new lock state
*/
virtual void HandleLockStatusChangedL( TLockStatus aLockStatus );
private:
/**
* From @c MAknEcsObserver. Handles changes in emergency call detector.
* @param aEcsDetector a pointer to ecsdetector component
* @param aState the new emergency detector state.
*/
void HandleEcsEvent( CAknEcsDetector* aEcsDetector, CAknEcsDetector::TState aState );
public:
/**
* Emergency note is visible.
*
* @return true if emergency note is on the screen.
*/
TBool EcsNoteOnScreen( ) const;
/**
* Internal Method only used for testing since emergency number
* detection does not work in emulator.
*
* @return KErrNone if there were no problems
*/
TInt TestEcsNote( );
private:
/**
* Receives emergency number key events and handles emergency dialing.
* Own.
*/
CAknEcsDetector* iEcsDetector;
/**
* Emergency note to be shown when user has dialed emergency number.
* Own.
*/
CLockAppEcsNote* iEcsNote;
};
#endif // __LOCKAPPSTATEDETECTOR_H__
// End of File