1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __ASSRVNEXTDSTCHANGEOBSERVER_H__

    17 #define __ASSRVNEXTDSTCHANGEOBSERVER_H__

    18 

    19 #include <e32std.h>

    20 #include <e32base.h>

    21 #include <e32property.h>

    22 

    23 #include <asshddefs.h>

    24 

    25 class CASSrvAlarmQueue;

    26 

    27 /** This class is used to listen to changes to the DST changes

    28 that are published by the time zone server.  The time of the next and

    29 previous DST change and the next and previous offset can be retrieved.

    30 */

    31 class CASSrvDSTChange : public CActive

    32 	{

    33 private:

    34 

    35 	/** This is a copy of the struct used to publish the DST change in tz. We cannot 

    36 	use the same one as we do not want a dependancy between these components

    37 	*/

    38 	struct TNextDSTChange

    39 		{

    40 		TUint8 iVersion;

    41 		TTime iNextDSTChangeUTC;

    42 		TInt iNextUTCOffset;

    43 		TTime iPreviousDSTChangeUTC;

    44 		TInt iPreviousUTCOffset;

    45 		TInt iReserved[12];

    46 		};

    47 		

    48 public:

    49 	static CASSrvDSTChange* NewL(CASSrvAlarmQueue& aASSrvAlarmQueue);

    50 	~CASSrvDSTChange();

    51 	

    52 	TTime NextDSTChangeUTC() const;

    53 	TTimeIntervalMinutes NextUTCOffset() const;

    54 	

    55 	TTime PreviousDSTChangeUTC() const;

    56 	TTimeIntervalMinutes PreviousUTCOffset() const;

    57 	

    58 private: // from CActive

    59 	void RunL();

    60 	void DoCancel();

    61 	

    62 private:

    63 	CASSrvDSTChange(CASSrvAlarmQueue& aASSrvAlarmQueue);

    64 	void ConstructL();

    65 	

    66 	void UpdatePropertyValuesL();

    67 

    68 private:

    69 	CASSrvAlarmQueue& iASSrvAlarmQueue;

    70 	RProperty iDSTChangeProperty;

    71 	

    72 	TTime iNextDSTChangeUTC;

    73 	TTimeIntervalMinutes iNextUTCOffset;

    74 	

    75 	TTime iPreviousDSTChangeUTC;

    76 	TTimeIntervalMinutes iPreviousUTCOffset;

    77 	};

    78 

    79 #endif __ASSRVNEXTDSTCHANGEOBSERVER_H__