sapi_calendar/calendarservice/src/calendarservice.cpp
changeset 0 14df0fbfcc4e
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-1:000000000000 0:14df0fbfcc4e
       
     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 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:  Interface to Calender service
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <e32base.h>
       
    20 #include <calsession.h>
       
    21 #include <calinstance.h>
       
    22 #include <calentryview.h>
       
    23 #include <calinstanceview.h>
       
    24 #include <calrrule.h>
       
    25 #include <badesca.h>
       
    26 
       
    27 #include "calendarheader.h"
       
    28 #include "calendarconstants.h"
       
    29 #include "entryattributes.h"
       
    30 #include "calendarservice.h"
       
    31 #include "Calendarnotify.h"
       
    32 #include "calendardeleteentry.h"
       
    33 #include "calendarimport.h"
       
    34 #include "calendarexport.h"
       
    35 #include "addentry.h"
       
    36 #include "asyncreqobserver.h"
       
    37 
       
    38 
       
    39 // ---------------------------------------------------------------------------
       
    40 // Two-phased constructor.
       
    41 // ---------------------------------------------------------------------------
       
    42 //
       
    43 CAsyncRequestObserver* CAsyncRequestObserver::NewL()
       
    44 	{
       
    45 	return new(ELeave) CAsyncRequestObserver;
       
    46 	}
       
    47 	
       
    48 // ---------------------------------------------------------------------------
       
    49 // Destructor.
       
    50 // ---------------------------------------------------------------------------
       
    51 //
       
    52 CAsyncRequestObserver::~CAsyncRequestObserver()
       
    53 	{
       
    54 	DeleteAsyncObjects();//deletes all Asychronous objects
       
    55 	iAsyncObjArray.Reset();
       
    56 	}
       
    57 		
       
    58 // ---------------------------------------------------------------------------
       
    59 // Notifies about the completeion of an async request.
       
    60 // ---------------------------------------------------------------------------
       
    61 //
       
    62 void CAsyncRequestObserver::RequestComplete( const TInt32 aTransactionId )
       
    63 	{
       
    64 	TInt pos = iAsyncObjArray.Count() - 1;
       
    65 	TAsyncRequestInfo obj;
       
    66 	for ( ; pos >= 0; pos-- )
       
    67 		{
       
    68 		obj = iAsyncObjArray[pos];
       
    69 		// Remove object with transaction id aTransactionId from async object array
       
    70 		if( obj.iTransactionId == aTransactionId )
       
    71 			{
       
    72 			iAsyncObjArray.Remove(pos);
       
    73 			iAsyncObjArray.Compress();
       
    74 			return;
       
    75 			}
       
    76 		}
       
    77 	}
       
    78 
       
    79 // ---------------------------------------------------------------------------
       
    80 // Deletes all the asynchronous request objects
       
    81 // ---------------------------------------------------------------------------
       
    82 //
       
    83 void CAsyncRequestObserver::DeleteAsyncObjects()
       
    84 	{
       
    85 	TInt pos = iAsyncObjArray.Count() - 1;
       
    86 	TAsyncRequestInfo obj;
       
    87 	for ( ; pos >= 0; pos-- )
       
    88 		{
       
    89 		obj = iAsyncObjArray[pos];
       
    90 		obj.iAsyncObj->Cancel();
       
    91 		delete obj.iAsyncObj;
       
    92 		}
       
    93 	}
       
    94 
       
    95 
       
    96 
       
    97 // ---------------------------------------------------------------------------
       
    98 // Cancels asynchronous request
       
    99 // ---------------------------------------------------------------------------
       
   100 //
       
   101 EXPORT_C TInt CAsyncRequestObserver::Cancel( const TInt32 aTransactionId )
       
   102 	{
       
   103 	TInt pos = iAsyncObjArray.Count() - 1;
       
   104 	TAsyncRequestInfo obj;
       
   105 	for ( ; pos >= 0; pos-- )
       
   106 		{
       
   107 		obj = iAsyncObjArray[pos];
       
   108 		// Cancel and remove object with transaction id aTransactionId from async object array
       
   109 		if( obj.iTransactionId == aTransactionId )
       
   110 			{
       
   111 			if(obj.iAsyncObj->IsInProgress())
       
   112 				return KErrInUse;
       
   113 			
       
   114 			obj.iAsyncObj->Cancel();
       
   115 			delete obj.iAsyncObj;
       
   116 			return KErrNone;
       
   117 			}
       
   118 		}
       
   119 		
       
   120 	return KErrNotFound;
       
   121 	}
       
   122 
       
   123 // ---------------------------------------------------------------------------
       
   124 // Adds asynchronous request object
       
   125 // ---------------------------------------------------------------------------
       
   126 //
       
   127 void CAsyncRequestObserver::AddAsyncObjL( const TInt32 aTransactionId, CCalendarASyncRequest* aAsyncObj )
       
   128 	{
       
   129 	// Add async object to array to keep track of async requests
       
   130 	TAsyncRequestInfo asyncRequestInfo;
       
   131 	asyncRequestInfo.iTransactionId = aTransactionId;
       
   132 	asyncRequestInfo.iAsyncObj = aAsyncObj;
       
   133 	User::LeaveIfError( iAsyncObjArray.Append( asyncRequestInfo ) );
       
   134 	}
       
   135 
       
   136 // ---------------------------------------------------------------------------
       
   137 // Two-phased constructor.
       
   138 // ---------------------------------------------------------------------------
       
   139 //
       
   140 EXPORT_C CCalendarService* CCalendarService::NewL()
       
   141 	{
       
   142 	CCalendarService* self = new (ELeave) CCalendarService;
       
   143 	CleanupStack::PushL( self );
       
   144 	self->ConstructL();
       
   145 	CleanupStack::Pop( self );
       
   146 	return self;
       
   147 	}
       
   148 	
       
   149 // ---------------------------------------------------------------------------
       
   150 // Destructor.
       
   151 // ---------------------------------------------------------------------------
       
   152 //
       
   153 CCalendarService::~CCalendarService()
       
   154 	{
       
   155 	delete iAsyncReqObserver;
       
   156 	iArraySessionInfo.ResetAndDestroy();
       
   157 	}
       
   158 
       
   159 // ---------------------------------------------------------------------------
       
   160 // Constructor.
       
   161 // ---------------------------------------------------------------------------
       
   162 //
       
   163 CCalendarService::CCalendarService()
       
   164 	{
       
   165 	}
       
   166 
       
   167 // ---------------------------------------------------------------------------
       
   168 // Two-phased constructor.
       
   169 // ---------------------------------------------------------------------------
       
   170 //
       
   171 void CCalendarService::ConstructL()
       
   172 	{
       
   173 	//Create default calendar session
       
   174 	CalendarSessionInfoL( KNullDesC );
       
   175 	iAsyncReqObserver = CAsyncRequestObserver::NewL();
       
   176 	}
       
   177 
       
   178 // ---------------------------------------------------------------------------
       
   179 // Returns list of available calendars in device.
       
   180 // Default calendar will be returned in case aDefault is true.
       
   181 // ---------------------------------------------------------------------------
       
   182 //
       
   183 EXPORT_C void CCalendarService::GetListL(  CDesCArray*&  aCalendarList, const TBool aDefault )
       
   184 	{
       
   185 	if ( aDefault )
       
   186 		{
       
   187 		aCalendarList = new(ELeave) CDesCArraySeg( KArrayGran );
       
   188 		// Append default calendar to calendar list if aDefault ==  ETrue
       
   189 		CleanupStack::PushL( aCalendarList );
       
   190 		aCalendarList->AppendL( iArraySessionInfo[KArrayZeroIndex]->Calendar() );
       
   191 		CleanupStack::Pop( aCalendarList );
       
   192 		}
       
   193 	else
       
   194 		{
       
   195 		// Append all available to calendar list
       
   196 		aCalendarList = iArraySessionInfo[KArrayZeroIndex]->Session()->ListCalFilesL();
       
   197 		}
       
   198 	}
       
   199 
       
   200 // ---------------------------------------------------------------------------
       
   201 // Returns list of calendar entries from given calendar with the given Global UID.
       
   202 // ---------------------------------------------------------------------------
       
   203 //
       
   204 EXPORT_C void CCalendarService::GetListL( const TDesC& aCalendarName, const TDesC8& aGuid, RPointerArray<CCalEntry>& aEntryList)
       
   205 	{
       
   206 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   207 	
       
   208 	// Get list of calendar entries using CCalEntryView 
       
   209 	sessionInfo->EntryView()->FetchL( aGuid, aEntryList );
       
   210 	}
       
   211 
       
   212 // ---------------------------------------------------------------------------
       
   213 // Returns list of calendar entries from given calendar with the given Local UID.
       
   214 // ---------------------------------------------------------------------------
       
   215 //
       
   216 EXPORT_C void CCalendarService::GetListL( const TDesC& aCalendarName, const TCalLocalUid aLocalUid, RPointerArray<CCalEntry>& aEntryList)
       
   217 	{
       
   218 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   219 	
       
   220 	// Fetch only that entry having local uid aLocalUid
       
   221 	CCalEntry* entry = sessionInfo->EntryView()->FetchL( aLocalUid );
       
   222 	if( entry )
       
   223 		{
       
   224 		aEntryList.Append( entry );
       
   225 		}
       
   226 	}
       
   227 
       
   228 // ---------------------------------------------------------------------------
       
   229 // Returns list of calendar instances from given calendar based on input filter.
       
   230 // ---------------------------------------------------------------------------
       
   231 //
       
   232 EXPORT_C void CCalendarService::GetListL( const TDesC& aCalendarName, CCalendarFilter* aFilter, 
       
   233 											RPointerArray<CCalInstance>& aInstanceList )
       
   234 	{
       
   235 	if ( !aFilter )
       
   236 		User::Leave( KErrArgument );
       
   237 	
       
   238 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   239 	CalCommon::TCalTimeRange range =  aFilter->TimeRange();
       
   240 	if( (range.EndTime().TimeLocalL()) < (range.StartTime().TimeLocalL()) )
       
   241 		User::Leave( KErrArgument );
       
   242 	if ( aFilter->FilterText().Length() )
       
   243 		{
       
   244 		// Search and return all instances which match filter text and time range
       
   245 		CCalInstanceView::TCalSearchParams searchParam( aFilter->FilterText(), CalCommon::EFoldedTextSearch );
       
   246 		sessionInfo->InstanceView()->FindInstanceL( aInstanceList, 
       
   247 													aFilter->FilterType(), 
       
   248 													aFilter->TimeRange(), searchParam ) ;
       
   249 		}
       
   250 	else
       
   251 		{
       
   252 		// Search and return all instances which match filter type and time range
       
   253 		sessionInfo->InstanceView()->FindInstanceL( aInstanceList, 
       
   254 													aFilter->FilterType(), 
       
   255 													aFilter->TimeRange() ) ;
       
   256 		}	
       
   257 	}
       
   258 
       
   259 // ---------------------------------------------------------------------------
       
   260 // Adds new calendar 
       
   261 // ---------------------------------------------------------------------------
       
   262 //
       
   263 EXPORT_C void CCalendarService::AddL( const TDesC& aCalendarName )
       
   264 	{
       
   265 	//Create a new calendar file using the existing session object
       
   266 	iArraySessionInfo[KArrayZeroIndex]->Session()->CreateCalFileL( aCalendarName );
       
   267 	}
       
   268 
       
   269 // ---------------------------------------------------------------------------
       
   270 // Add
       
   271 // ---------------------------------------------------------------------------
       
   272 //
       
   273 EXPORT_C void CCalendarService::AddL( const TDesC& aCalendarName, 
       
   274                         				CEntryAttributes* aCalendarData, TUIDSet*& aUidAdded ) 
       
   275 	{
       
   276 	if ( !aCalendarData )
       
   277 		User::Leave( KErrArgument );
       
   278 	
       
   279 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   280 	CCalendarAddEntry* obj = CCalendarAddEntry::NewL( sessionInfo, aCalendarData );
       
   281 	CleanupStack::PushL( obj );
       
   282 	obj->AddL( aUidAdded );
       
   283 	CleanupStack::PopAndDestroy( obj );
       
   284 	}
       
   285 
       
   286 // ---------------------------------------------------------------------------
       
   287 // Remove calendar from the device. Deletion of defaut calendar is not supported
       
   288 // ---------------------------------------------------------------------------
       
   289 //
       
   290 EXPORT_C void CCalendarService::DeleteL( const TDesC& aCalendarName )
       
   291 	{
       
   292 	if ( aCalendarName.CompareF(iArraySessionInfo[KArrayZeroIndex]->Calendar()) != 0 )
       
   293 		{
       
   294 		RemoveSessionInfo( aCalendarName );
       
   295 		iArraySessionInfo[KArrayZeroIndex]->Session()->DeleteCalFileL( aCalendarName );
       
   296 		}
       
   297 	else
       
   298 		{
       
   299 		User::Leave( KErrNotSupported );
       
   300 		}
       
   301 	}
       
   302 
       
   303 // ---------------------------------------------------------------------------
       
   304 // Remove entries from the given calendar based on input filter
       
   305 // ---------------------------------------------------------------------------
       
   306 //
       
   307 EXPORT_C void CCalendarService::DeleteL( const TDesC& aCalendarName, CCalendarFilter* aFilter, MCalCallbackBase* aCallBack )
       
   308 	{
       
   309 	if ( !aFilter )
       
   310 		User::Leave( KErrArgument );
       
   311 	
       
   312 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   313 
       
   314 	//Instantiate the Delete Class Object
       
   315 	CCalendarDeleteEntry* obj = CCalendarDeleteEntry::NewL( sessionInfo, aFilter, iAsyncReqObserver, aCallBack);
       
   316 
       
   317 	CleanupStack::PushL( obj );
       
   318 	
       
   319 	// Call the appropriate version of delete depending on input
       
   320 	obj->DeleteL();
       
   321 	
       
   322 	if ( aCallBack )
       
   323 		{
       
   324 		AddAsyncObjL(aCallBack->iTransactionId, obj );
       
   325 		CleanupStack::Pop( obj );
       
   326 		}
       
   327 	else
       
   328 		CleanupStack::PopAndDestroy( obj );
       
   329 	}
       
   330 
       
   331 // ---------------------------------------------------------------------------
       
   332 // ImportL: This is the Synchronous version of Import which imports all the 
       
   333 //         entries in the format specified from the Calendar
       
   334 // ---------------------------------------------------------------------------
       
   335 //
       
   336 EXPORT_C void CCalendarService::ImportL( const TDesC& aCalendarName, 
       
   337 										 const TDesC8& aFormat, 
       
   338 										 const TDesC8& aInputBuffer, 
       
   339 										 RPointerArray<TUIDSet>& aUIDSet )
       
   340 	{
       
   341 	//Step 1: get the session
       
   342 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   343 	
       
   344 	//Step 2: Instantiate the Import CoreClass Object
       
   345 	CCalendarImport* importObj = CCalendarImport::NewL( sessionInfo, aFormat, aInputBuffer );
       
   346 	
       
   347 	//Step 3: Push the ImportObject onto the cleanup stack as the Import function can Leave
       
   348 	CleanupStack::PushL( importObj );
       
   349 	
       
   350 	//Step 4: Call the Import along side the handle to the Output i.e.., aUIDSet
       
   351 	importObj->ImportL( aUIDSet );
       
   352 	
       
   353 	//Step 5: Destroy the Object as the processing is done
       
   354 	CleanupStack::PopAndDestroy( importObj );
       
   355 	}
       
   356 
       
   357 // ---------------------------------------------------------------------------
       
   358 // ImportL: This is the Synchronous version of Import which imports all the 
       
   359 //         entries in the format specified from the Calendar
       
   360 // ---------------------------------------------------------------------------
       
   361 //
       
   362 EXPORT_C void CCalendarService::ImportL( const TDesC& aCalendarName, 
       
   363 										 const TDesC8& aFormat, 
       
   364 										 const TDesC& aImportFile, 
       
   365 										 RPointerArray<TUIDSet>& aUIDSet )
       
   366 	{
       
   367 	//Step 1: get the session
       
   368 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   369 	
       
   370 	//Step 2: Instantiate the Import CoreClass Object
       
   371 	CCalendarImport* importObj = CCalendarImport::NewL( sessionInfo, aFormat, aImportFile );
       
   372 	
       
   373 	//Step 3: Push the ImportObject onto the cleanup stack as the Import function can Leave
       
   374 	CleanupStack::PushL( importObj );
       
   375 	
       
   376 	//Step 4: Call the Import along side the handle to the Output i.e.., aUIDSet
       
   377 	importObj->ImportL( aUIDSet );
       
   378 	
       
   379 	//Step 5: Destroy the Object as the processing is done
       
   380 	CleanupStack::PopAndDestroy( importObj );
       
   381 	}
       
   382 
       
   383 // -----------------------------------------------------------------------------
       
   384 // ImportAsyncL: This is the Asynchronous version of Import which imports all the 
       
   385 //         		 entries in the format specified to the Calendar
       
   386 // ------------------------------------------------------------------------------
       
   387 //		
       
   388 EXPORT_C void CCalendarService::ImportL( const TDesC&           aCalendarName, 
       
   389 									     const TDesC8&          aFormat, 
       
   390 										 const TDesC8&          aInputBuffer, 
       
   391 										 MCalCallbackBase*      aCallBack )
       
   392 	{
       
   393 	//get the session
       
   394 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   395 	
       
   396 	//Instantiate the Import CoreClass Object
       
   397 	CCalendarImport* importObj = CCalendarImport::NewL( sessionInfo, aFormat, aInputBuffer, iAsyncReqObserver, aCallBack );
       
   398 	
       
   399 	//Push the ImportObject onto the cleanup stack as the Import function can Leave
       
   400 	CleanupStack::PushL( importObj );
       
   401 	
       
   402 	importObj->ImportL();
       
   403 	
       
   404 	AddAsyncObjL( aCallBack->iTransactionId, importObj );
       
   405 	
       
   406 	CleanupStack::Pop( importObj );
       
   407 	}
       
   408 	
       
   409 // -----------------------------------------------------------------------------
       
   410 // ImportAsyncL: This is the Asynchronous version of Import which imports all the 
       
   411 //         		 entries in the format specified to the Calendar
       
   412 // ------------------------------------------------------------------------------
       
   413 //		
       
   414 EXPORT_C void CCalendarService::ImportL( const TDesC&           aCalendarName, 
       
   415 									     const TDesC8&          aFormat, 
       
   416 										 const TDesC&           aImportFile, 
       
   417 										 MCalCallbackBase*      aCallBack )
       
   418 	{
       
   419 	//get the session
       
   420 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   421 	
       
   422 	//Instantiate the Import CoreClass Object
       
   423 	CCalendarImport* importObj = CCalendarImport::NewL( sessionInfo, aFormat, aImportFile, iAsyncReqObserver, aCallBack );
       
   424 	
       
   425 	//Push the ImportObject onto the cleanup stack as the Import function can Leave
       
   426 	CleanupStack::PushL( importObj );
       
   427 	
       
   428 	importObj->ImportL();
       
   429 	
       
   430 	AddAsyncObjL( aCallBack->iTransactionId, importObj );
       
   431 	
       
   432 	CleanupStack::Pop( importObj );
       
   433 	}
       
   434 	
       
   435 	
       
   436 	
       
   437 // ---------------------------------------------------------------------------
       
   438 // ExportL: This is the Synchronous Version which exports all the entries of 
       
   439 //			Calendar in the Specified format
       
   440 // ---------------------------------------------------------------------------
       
   441 //
       
   442 EXPORT_C void CCalendarService::ExportL( const TDesC&           aCalendarName, 
       
   443 										 const TDesC8&          aFormat,
       
   444 										 CCalendarExportParams* aParams,  
       
   445 										 HBufC8*&               aOutputBuffer )
       
   446 	{
       
   447 	if( !aParams )
       
   448 		User::Leave( KErrArgument );
       
   449 	
       
   450 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   451 	
       
   452 	CCalendarExport* exportObj = CCalendarExport::NewL( sessionInfo, aFormat, aParams );
       
   453 
       
   454 	CleanupStack::PushL( exportObj );
       
   455 	
       
   456 	exportObj->ExportL( aOutputBuffer );
       
   457 	
       
   458 	CleanupStack::PopAndDestroy( exportObj );	
       
   459 	}
       
   460 
       
   461 
       
   462 // ---------------------------------------------------------------------------
       
   463 // ExportAsyncL: This is the Asynchronous Version which exports all the entries of 
       
   464 //				 Calendar in the Specified format
       
   465 // ---------------------------------------------------------------------------
       
   466 //
       
   467 EXPORT_C void CCalendarService::ExportL( const TDesC&           aCalendarName, 
       
   468 									     const TDesC8&          aFormat, 
       
   469 										 CCalendarExportParams* aParams, 
       
   470 										 MCalCallbackBase*      aCallBack )
       
   471 	{
       
   472 	if( !aParams )
       
   473 		User::Leave( KErrArgument );
       
   474 	
       
   475 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   476 	
       
   477 	CCalendarExport* exportObj = CCalendarExport::NewL( sessionInfo, aFormat, aParams, iAsyncReqObserver, aCallBack );
       
   478 
       
   479 	CleanupStack::PushL( exportObj );
       
   480 	
       
   481 	exportObj->ExportL();
       
   482 	
       
   483 	AddAsyncObjL(aCallBack->iTransactionId, exportObj );
       
   484 	
       
   485 	CleanupStack::Pop( exportObj );	
       
   486 	}
       
   487 	
       
   488 // ---------------------------------------------------------------------------
       
   489 // Start Notification for changes in given calendar
       
   490 // ---------------------------------------------------------------------------
       
   491 //
       
   492 EXPORT_C void CCalendarService::StartChangeNotifyL( const TDesC& aCalendarName, CCalendarFilter* aFilter, MCalCallbackBase* aCallBack )
       
   493 	{
       
   494 	if( !aCallBack || !aFilter )
       
   495 		User::Leave( KErrArgument );
       
   496 	
       
   497 	CCalendarSessionInfo* sessionInfo = CalendarSessionInfoL( aCalendarName );
       
   498 
       
   499 	CCalendarObserver* obj = CCalendarObserver::NewL( sessionInfo, aFilter, iAsyncReqObserver, aCallBack );
       
   500 
       
   501 	CleanupStack::PushL( obj );
       
   502 	
       
   503 	// notify in case of add/delete/update operation performed on calendar entries
       
   504 	obj->StartChangeNotificationL();
       
   505 	
       
   506 	AddAsyncObjL(aCallBack->iTransactionId, obj );
       
   507 
       
   508 	CleanupStack::Pop( obj );
       
   509 
       
   510 	}
       
   511 
       
   512 // ---------------------------------------------------------------------------
       
   513 // Adds asynchronous request object
       
   514 // ---------------------------------------------------------------------------
       
   515 //
       
   516 void CCalendarService::AddAsyncObjL( const TInt32 aTransactionId, CCalendarASyncRequest* aAsyncObj )
       
   517 	{
       
   518 	iAsyncReqObserver->AddAsyncObjL( aTransactionId, aAsyncObj );
       
   519 	}
       
   520 
       
   521 // ---------------------------------------------------------------------------
       
   522 // Cancels asynchronous request
       
   523 // ---------------------------------------------------------------------------
       
   524 //
       
   525 EXPORT_C TInt CCalendarService::Cancel( const TInt32 aTransactionId )
       
   526 	{
       
   527 	return iAsyncReqObserver->Cancel( aTransactionId );
       
   528 	}
       
   529 
       
   530 // ---------------------------------------------------------------------------
       
   531 // Returns Calendar session information for given calendar
       
   532 // ---------------------------------------------------------------------------
       
   533 //
       
   534 CCalendarSessionInfo* CCalendarService::CalendarSessionInfoL( const TDesC& aCalendar )
       
   535 	{
       
   536 	// Return default session object if aCalendar is KNullDesC
       
   537 	if ( ( iArraySessionInfo.Count() > 0 ) && ( aCalendar.Length() == 0 ) )
       
   538 		return iArraySessionInfo[KArrayZeroIndex];
       
   539 	
       
   540 	TInt count = iArraySessionInfo.Count();
       
   541 	for( TInt index = 0; index < count; index++ )
       
   542 		{
       
   543 		// Return session information of object corresponding to aCalendar
       
   544 		if ( aCalendar.CompareF(iArraySessionInfo[index]->Calendar() ) == 0 )
       
   545 			return iArraySessionInfo[index];
       
   546 		}
       
   547 	// If session object is not found, create new session object
       
   548 	// and append to session info array	
       
   549 	CCalendarSessionInfo* sessionInfo = CCalendarSessionInfo::NewL( aCalendar );
       
   550 	CleanupStack::PushL( sessionInfo );
       
   551 	iArraySessionInfo.AppendL( sessionInfo );
       
   552 	CleanupStack::Pop( sessionInfo );
       
   553 	return sessionInfo;
       
   554 	}
       
   555 
       
   556 // ---------------------------------------------------------------------------
       
   557 // Closes Calendar session for given calendar
       
   558 // ---------------------------------------------------------------------------
       
   559 //
       
   560 void CCalendarService::RemoveSessionInfo( const TDesC& aCalendar )
       
   561 	{
       
   562 	TInt count = iArraySessionInfo.Count();
       
   563 	for( TInt index = 1; index < count; index++ )
       
   564 		{
       
   565 		if( aCalendar.CompareF(iArraySessionInfo[index]->Calendar()) == 0 )
       
   566 			{
       
   567 			// Remove session information for aCalendar and close session
       
   568 			CCalendarSessionInfo* sessionInfo = iArraySessionInfo[index];
       
   569 			iArraySessionInfo.Remove( index );
       
   570 			iArraySessionInfo.Compress();
       
   571 			delete sessionInfo;
       
   572 			break;
       
   573 			}
       
   574 		}
       
   575 	}