1 /*

     2 * Copyright (c) 2009-2010 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 * Definition file for the EnvironmentChangeNotifier class.

    16 *

    17 */

    18 

    19 // System includes

    20 #include <bacntf.h>

    21 

    22 // User includes

    23 #include "environmentchangenotifier.h"

    24 #include "timezoneclient.h"

    25 #include "OstTraceDefinitions.h"

    26 #ifdef OST_TRACE_COMPILER_IN_USE

    27 #include "environmentchangenotifierTraces.h"

    28 #endif

    29 

    30 

    31 /*!

    32 	\class EnvironmentChangeNotifier

    33 

    34 	This class listens to the enviroment changes and notifies the client.

    35  */

    36 

    37 /*!

    38 	The constructor.

    39  */

    40 EnvironmentChangeNotifier::EnvironmentChangeNotifier(TimezoneClient *client)

    41 {

    42 	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_ENTRY );

    43 	mTzClient = client;

    44 	

    45 	TCallBack callback(environmentCallback, this);

    46 

    47 	mNotifier = CEnvironmentChangeNotifier::NewL(

    48 			CActive::EPriorityStandard, callback);

    49 	mNotifier->Start();

    50 

    51 	OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_EXIT );

    52 }

    53 

    54 EnvironmentChangeNotifier::~EnvironmentChangeNotifier()

    55 {

    56 	OstTraceFunctionEntry0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_ENTRY );

    57 	if (mNotifier) {

    58 		mNotifier->Cancel();

    59 		delete mNotifier;

    60 		mNotifier = 0;

    61 	}

    62 	OstTraceFunctionExit0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_EXIT );

    63 }

    64 

    65 int EnvironmentChangeNotifier::environmentCallback(TAny* obj)

    66 {

    67 	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_ENTRY );

    68 	EnvironmentChangeNotifier* self =

    69 			static_cast<EnvironmentChangeNotifier *> (obj);

    70 

    71 	int changes = KInitialEvent;

    72 	if (self->mNotifier) {

    73 		changes = self->mNotifier->Change();

    74 	}

    75 

    76 	if (KInitialEvent <= changes) {

    77 		// We're not concerned about handling environment changes in that range.

    78 		OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_EXIT );

    79 		return 0;

    80 	}

    81 

    82 	if (changes & (EChangesMidnightCrossover |

    83 			EChangesLocale |

    84 			EChangesSystemTime)) {

    85 //		emit self->timechanged(); TODO: notify timezone client.

    86 //		

    87 		self->notifyEnvChange();

    88 	} else {

    89 		// Nothing to do.

    90 	}

    91 	OstTraceFunctionExit0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_EXIT );

    92 	return 0;

    93 }

    94 

    95 void EnvironmentChangeNotifier::notifyEnvChange()

    96 {

    97 	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_NOTIFYENVCHANGE_ENTRY );

    98 	mTzClient->notifyTimeChange();

    99 	OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_NOTIFYENVCHANGE_EXIT );

   100 }

   101 

   102 // End of file -- Do not remove this.