1 /*

     2 * Copyright (c) 2007 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 "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: Timer for creating longtap event 

    15 *

    16 */

    17 #include "alfscrollbarlongtaptimer.h"

    18 #include <alf/ialfscrollbardefaultbaseelement.h>

    19 #include "ialfscrollbarbaseelementinternal.h"

    20 

    21 const int KInitialTimeInterval = 200000;

    22 const int KTimeInterval =  100000;

    23 

    24 namespace Alf

    25     {

    26 

    27 //---------------------------------------------------------------------------

    28 // Constructor

    29 //---------------------------------------------------------------------------

    30 //        

    31 AlfScrollBarLongTapTimer::AlfScrollBarLongTapTimer(

    32     IAlfScrollBarDefaultBaseElement* aBaseElement):CActive(EPriorityStandard)

    33     {

    34     iTimer.CreateLocal();

    35     iBaseElement = aBaseElement;

    36     CActiveScheduler::Add(this);

    37     iState = EStopped;

    38     }

    39 

    40 //---------------------------------------------------------------------------

    41 // Destructor 

    42 //---------------------------------------------------------------------------

    43 //

    44 AlfScrollBarLongTapTimer::~AlfScrollBarLongTapTimer()

    45     {

    46     Stop();

    47     iTimer.Close();

    48     }

    49 //---------------------------------------------------------------------------

    50 // Activates the timer. 

    51 //---------------------------------------------------------------------------

    52 //  

    53 void AlfScrollBarLongTapTimer::Start()

    54     {

    55     if (iState == ERunning)

    56         return;

    57     if (!IsActive())

    58         {

    59         iTimer.After(iStatus, TTimeIntervalMicroSeconds32(KInitialTimeInterval));

    60         SetActive();

    61         }

    62     iState = ERunning;    

    63     }

    64 //---------------------------------------------------------------------------

    65 // stops the timer. 

    66 //---------------------------------------------------------------------------

    67 // 

    68 void AlfScrollBarLongTapTimer::Stop()

    69     {

    70     Cancel();

    71     iState = EStopped;

    72     }

    73 //---------------------------------------------------------------------------

    74 // Handles an active object's request completion event.

    75 //---------------------------------------------------------------------------

    76 //     

    77 void AlfScrollBarLongTapTimer::RunL()

    78     {

    79     IAlfScrollBarBaseElementInternal* elementInternal = 

    80         static_cast<IAlfScrollBarBaseElementInternal*> (

    81         iBaseElement->makeInterface(IAlfScrollBarBaseElementInternal::type()));

    82    

    83     if (iState == ERunning)

    84             {

    85             iTimer.After(iStatus, TTimeIntervalMicroSeconds32(KTimeInterval));    

    86             SetActive();

    87             }

    88     if(elementInternal)

    89         {

    90         elementInternal->handleLongTapEvent();

    91         }    

    92     }

    93 

    94 //---------------------------------------------------------------------------

    95 // Implements cancellation of an outstanding request.

    96 //---------------------------------------------------------------------------

    97 // 

    98 void AlfScrollBarLongTapTimer::DoCancel()

    99     {

   100     iTimer.Cancel();

   101     }

   102 

   103     }