/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Gesture helper implementation

*

*/

#include "GenericSimpleGesture.h"

#include "longpressgesturerecogniser.h"

#include "rt_uievent.h"

#include "filelogger.h"

using namespace stmGesture ;

CLongPressGestureRecogniser::CLongPressGestureRecogniser(MGestureListener* aListener) :

    CGestureRecogniser(aListener)

{

}

CLongPressGestureRecogniser* CLongPressGestureRecogniser::NewL(MGestureListener* aListener)

{

    CLongPressGestureRecogniser* self = new (ELeave) CLongPressGestureRecogniser(aListener) ;

    return self;

}

CLongPressGestureRecogniser::~CLongPressGestureRecogniser()

{

}

/*!

 * recognise the long press; basically it is just the EHold UI event

 */

TGestureRecognitionState CLongPressGestureRecogniser::recognise(int numOfActiveStreams,

        MGestureEngineIf* pge)

{

    TGestureRecognitionState state = ENotMyGesture;

    // Check if we are enabled or not

    if (!m_gestureEnabled) return state ;

    // Look at the events to see if it looks like long press with one pointer

    if (numOfActiveStreams == 1)

    {

        // Then look at the event stream, it has to be EHold

        const stmUiEventEngine::MUiEvent* puie = pge->getUiEvents(0);

        if (!puie) return state;

        int countOfEvents = puie->countOfEvents();

        stmUiEventEngine::TUiEventCode eventCode = puie->Code();

        if (m_loggingenabled)

        {

            LOGARG("CLongPressGestureRecogniser: %d num %d code %d", eventCode, countOfEvents, eventCode);

        }

        if (puie->Target() == m_powner && eventCode == stmUiEventEngine::EHold) // The last one is EHold, look if it is near our borders

        {

            const TPoint& p = puie->CurrentXY() ;

            if (m_loggingenabled)

            {

                LOGARG("CLongPressGestureRecogniser: (%d, %d) in (%d,%d)(%d,%d)", p.iX, p.iY,

                        m_area.iTl.iX, m_area.iTl.iY, m_area.iBr.iX, m_area.iBr.iY);

            }

             state = EGestureActive ;

             // issue the long press gesture

             stmGesture::TGenericSimpleGesture pgest(KUid, p, 0, puie) ; // TODO: speed is 0?

             // Call the listener to inform that the gesture has occurred...

             m_listener->gestureEnter(pgest) ;

        }

    }

    return state;

}

void CLongPressGestureRecogniser::release(MGestureEngineIf* /*ge*/)

{

    if (m_loggingenabled)

    {

        LOGARG("CLongPressGestureRecogniser: 0x%x release", this);

    }

}

void CLongPressGestureRecogniser::setArea(const TRect& theArea)

{

    m_area = theArea ;

}