1 /*

     2 * Copyright (c) 2009 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:

    15 *

    16 */

    17 #include "tsexternalactivationwatcher_p.h"

    18 #include "tsexternalactivationwatcher.h"

    19 

    20 const TUid KTaskswitcherCategory = { 0x2002677D };

    21 const TUint KExternalActivationKey = 0x1;

    22 const TInt KTaskswitcherActivateFlag = 1;

    23 

    24 /*!

    25     \class TsExternalActivationWatcherPrivate

    26     \ingroup group_tsserviceplugin

    27     \brief Private implementation of external activation watcher.

    28 */

    29 

    30 TsExternalActivationWatcherPrivate::TsExternalActivationWatcherPrivate(TsExternalActivationWatcher *parent) : CActive(CActive::EPriorityStandard), mParent(parent)

    31 {

    32     CActiveScheduler::Add(this);

    33     

    34     TInt err = RProperty::Define(KTaskswitcherCategory, KExternalActivationKey, RProperty::EInt);

    35     if (err == KErrNone || err == KErrAlreadyExists) {

    36         err = mProperty.Attach(KTaskswitcherCategory, KExternalActivationKey);

    37     }

    38     

    39     Q_ASSERT_X(err == KErrNone, "TsExternalActivationWatcherPrivate", qPrintable(QString("Cannot define/attach to activation watcher property %1").arg(err)));

    40     

    41     mProperty.Subscribe(iStatus);

    42     SetActive();

    43 }

    44 

    45 TsExternalActivationWatcherPrivate::~TsExternalActivationWatcherPrivate()

    46 {

    47     Cancel();

    48     mProperty.Close();

    49 }

    50 

    51 void TsExternalActivationWatcherPrivate::ResetActivationFlag()

    52 {

    53     TInt value(0);

    54     mProperty.Set(value);

    55 }

    56 

    57 void TsExternalActivationWatcherPrivate::DoCancel()

    58 {

    59     mProperty.Cancel();

    60 }

    61 

    62 void TsExternalActivationWatcherPrivate::RunL()

    63 {

    64     if (iStatus.Int() != KErrCancel) {

    65         

    66         if (CheckActivationFlag()) {

    67             ResetActivationFlag();

    68             QT_TRYCATCH_LEAVING(emit mParent->activationRequested());

    69         }

    70         mProperty.Subscribe(iStatus);

    71         SetActive();

    72     }

    73 }

    74 

    75 bool TsExternalActivationWatcherPrivate::CheckActivationFlag()

    76 {

    77     TInt value(0);

    78     TInt result = mProperty.Get(value);

    79     return (result == KErrNone && value & KTaskswitcherActivateFlag);

    80 }