1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Gesture helper implementation

    15 *

    16 */

    17 

    18 #include "GenericSimpleGesture.h"

    19 #include "longpressgesturerecogniser.h"

    20 #include "rt_uievent.h"

    21 #include "filelogger.h"

    22 

    23 using namespace stmGesture ;

    24 

    25 CLongPressGestureRecogniser::CLongPressGestureRecogniser(MGestureListener* aListener) :

    26     CGestureRecogniser(aListener)

    27 {

    28 }

    29 

    30 CLongPressGestureRecogniser* CLongPressGestureRecogniser::NewL(MGestureListener* aListener)

    31 {

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

    33     return self;

    34 }

    35 

    36 CLongPressGestureRecogniser::~CLongPressGestureRecogniser()

    37 {

    38 }

    39 

    40 /*!

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

    42  */

    43 TGestureRecognitionState CLongPressGestureRecogniser::recognise(int numOfActiveStreams,

    44         MGestureEngineIf* pge)

    45 {

    46     TGestureRecognitionState state = ENotMyGesture;

    47     // Check if we are enabled or not

    48     if (!m_gestureEnabled) return state ;

    49 

    50 

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

    52     if (numOfActiveStreams == 1)

    53     {

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

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

    56         if (!puie) return state;

    57         int countOfEvents = puie->countOfEvents();

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

    59 

    60         if (m_loggingenabled)

    61         {

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

    63         }

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

    65         {

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

    67             if (m_loggingenabled)

    68             {

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

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

    71             }

    72              state = EGestureActive ;

    73              // issue the long press gesture

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

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

    76              m_listener->gestureEnter(pgest) ;

    77         }

    78     }

    79     return state;

    80 }

    81 

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

    83 {

    84     if (m_loggingenabled)

    85     {

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

    87     }

    88 }

    89 

    90 void CLongPressGestureRecogniser::setArea(const TRect& theArea)

    91 {

    92     m_area = theArea ;

    93 }