/*

* 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

 *

*/

#include "lockappecsdetector.h"

#include "lockappecsnote.h"

#include "lockapputils.h"

#include <aknappui.h>

#include <avkon.rsg>

// ---------------------------------------------------------------------------

// Standard Symbian OS construction sequence

// ---------------------------------------------------------------------------

CLockAppEcsDetector* CLockAppEcsDetector::NewL( )

    {

    CLockAppEcsDetector* self = new (ELeave) CLockAppEcsDetector();

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// Standard C++ constructor

// ---------------------------------------------------------------------------

CLockAppEcsDetector::CLockAppEcsDetector( )

    {

    }

// ---------------------------------------------------------------------------

// Constructs the emergency detector and the note.

// ---------------------------------------------------------------------------

void CLockAppEcsDetector::ConstructL( )

    {

    // emergency call support

    iEcsDetector = CAknEcsDetector::NewL( );

    iEcsDetector->SetObserver( this );

    // emergency call note

    iEcsNote = new (ELeave) CLockAppEcsNote();

    iEcsNote->ConstructSleepingNoteL( R_AVKON_EMERGENCY_CALL_NOTE );

    iEcsNote->ButtonGroupContainer().ButtonGroup()->AsControl()->DrawableWindow()->SetOrdinalPosition( 0, 2 );

    // needs to be called for ecs detector to work/receive events.

    iAvkonAppUi->EventMonitor()->Enable( ETrue );

    }

// ---------------------------------------------------------------------------

// Destructor.

// ---------------------------------------------------------------------------

CLockAppEcsDetector::~CLockAppEcsDetector( )

    {

    delete iEcsDetector;

    delete iEcsNote;

    }

// ---------------------------------------------------------------------------

// Detector starts/stops listening to key events if keys are locked/unlocked.

// The detector key event queue is always reseted when lock status is changed.

// ---------------------------------------------------------------------------

void CLockAppEcsDetector::HandleLockStatusChangedL( TLockStatus aLockStatus )

    {

    iEcsDetector->Reset( );

    switch ( aLockStatus )

        {

        case ELockNotActive:

            {

            iEcsDetector->CloseEventSource( );

            }

            break;

        case EKeyguardActive:

        case EDevicelockActive:

            {

            iEcsDetector->ConnectToEventSource( );

            }

            break;

        default:

            DoPanic( ELockUnknownValue );

            break;

        }

    }

// ---------------------------------------------------------------------------

// The main state controller needs to know if emergency call note is

// on the screen.

// ---------------------------------------------------------------------------

TBool CLockAppEcsDetector::EcsNoteOnScreen( ) const

    {

    return iEcsNote->iNoteOnScreen;

    }

// ---------------------------------------------------------------------------

// From @c MAknEcsObserver.. Handles changes in emergency the emergency number

// queue (i.e. if the user has dialed emergency numbers or not).

// ---------------------------------------------------------------------------

void CLockAppEcsDetector::HandleEcsEvent( CAknEcsDetector* aEcsDetector,

        CAknEcsDetector::TState aState )

    {

    switch ( aState )

        {

        case CAknEcsDetector::ECompleteMatchThenSendKey:

            // Do nothing since note will be removed on ECallAttempted event

            break;

            // user has successfully dialed emergency numbers

        case CAknEcsDetector::ECompleteMatch:

            iEcsNote->SetEmergencyNumber( aEcsDetector->CurrentMatch( ) );

            // Tell sysAp to switch lights on

            SendMessageToSysAp( EEikEcsQueryLights );

            iEcsNote->ShowNote( );

            break;

        case CAknEcsDetector::EPartialMatch:

            iEcsNote->SleepNote( );

            break;

        case CAknEcsDetector::ECallAttempted:

            iEcsNote->SleepNote( );

            break;

        case CAknEcsDetector::EEmpty:

            iEcsNote->SleepNote( );

            break;

        case CAknEcsDetector::ENoMatch:

            iEcsNote->SleepNote( );

            break;

        default:

            break;

        }

    }

// ---------------------------------------------------------------------------

// Tests the emergency note ui. Only used for testing purposes,

// Created, because emergency detector does not work in emulator.

// ---------------------------------------------------------------------------

TInt CLockAppEcsDetector::TestEcsNote( )

    {

#ifdef _DEBUG

    HandleEcsEvent( iEcsDetector, CAknEcsDetector::EEmpty );

    HandleEcsEvent( iEcsDetector, CAknEcsDetector::ENoMatch );

    HandleEcsEvent( iEcsDetector, CAknEcsDetector::EPartialMatch );

    HandleEcsEvent( iEcsDetector, CAknEcsDetector::ECompleteMatch );

    _LIT( NText, "112Test");

    iEcsNote->SetEmergencyNumber( NText );

    SendMessageToSysAp( EEikEcsQueryLights );

    iEcsNote->ShowNote( );

#endif

    return KErrNone;

    }