author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 24 Nov 2009 08:56:33 +0200 | |
changeset 33 | 50974a8b132e |
parent 19 | 989d2f495d90 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Interface to Exporting the contents of a Calender |
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* |
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*/ |
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//System Includes |
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#include <e32cmn.h> //for RPointerArray |
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#include <s32file.h> |
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#include <calsession.h> |
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#include <calentryview.h> |
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#include <CalenExporter.h> |
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#include <calentryview.h> |
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#include <caliterator.h> |
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//User Include |
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#include "calendarheader.h" |
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#include "calendarconstants.h" |
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#include "asyncreqobserver.h" |
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33
50974a8b132e
Revision: 200945
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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diff
changeset
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#include "calendarexport.h" |
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void CleanupCCalEntryArray(TAny* aPointer); |
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void CleanupCCalInstanceArray(TAny* aPointer); |
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//used in case of writing the temporary output while exporting the entries |
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_LIT(KTempFilePath,"C:\\"); |
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//-------------------------------------------------------------------------------------------------------- |
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// Static Method which either returns the Two Phase constructed Object or Leave |
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// Used to set local copies of some of the parameters like aFormat to iFormat |
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//-------------------------------------------------------------------------------------------------------- |
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// |
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CCalendarExport* CCalendarExport::NewL ( CCalendarSessionInfo* aCalSessionInfo, |
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const TDesC8& aFormat, |
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CCalendarExportParams* aParams, |
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CAsyncRequestObserver* aAsyncRequestObserver, |
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MCalCallbackBase* aCallBack ) |
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{ |
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CCalendarExport* self = new (ELeave) CCalendarExport( aCalSessionInfo, aAsyncRequestObserver, aCallBack ); |
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CleanupStack::PushL(self); |
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self->ConstructL( aFormat, aParams ); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Destructor. |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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CCalendarExport::~CCalendarExport() |
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{ |
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Cancel(); |
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delete iCalenExporter; |
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delete iFormat; |
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delete iOutputBuffer; |
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if ( iAsyncRequestObserver ) |
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delete iParams; |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Synchronous Export Function which decides the flow basing on the inputs set at the time of Construction |
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// of this object through NewL and generates corresponding entries in an Ouput Buffer |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ExportL( HBufC8*& aOutputBuffer ) |
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{ |
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if( !iParams ) |
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User::Leave( KErrArgument ); |
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if( iParams->Params() & CCalendarExportParams::EParamsGUid && |
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iParams->Params() & CCalendarExportParams::EParamsLUid) |
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{ |
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User::Leave( KErrArgument ); |
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} |
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else if( iParams->Params() & CCalendarExportParams::EParamsGUid ) |
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{ |
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ConvertGUIDAndExportL( aOutputBuffer ); |
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} |
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else if( iParams->Params() & CCalendarExportParams::EParamsLUid ) |
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{ |
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ConvertLUIDAndExportL( aOutputBuffer ); |
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} |
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else |
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{ |
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GetCalEntriesAndExportL( aOutputBuffer ); |
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} |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// ASynchronous Export Function which actually sets the ActiveObject up in the Active Schedular |
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// Exports entries basing on the input set at the time of construction of this object througn NewL |
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// all the entries of the Calender(outputis passed through callback) |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ExportL() |
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{ |
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if( !iAsyncRequestObserver || !iCallBack ) |
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User::Leave( KErrArgument ); |
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CActiveScheduler::Add ( this ); |
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ActivateRequest( KErrNone ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Constructor |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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CCalendarExport::CCalendarExport( CCalendarSessionInfo* aCalSessionInfo, CAsyncRequestObserver* aAsyncRequestObserver, |
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MCalCallbackBase* aCallBack ): |
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//CActive( EPriorityStandard ), |
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iCalSessionInfo( aCalSessionInfo ), |
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iCallBack( aCallBack ), |
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iAsyncRequestObserver( aAsyncRequestObserver ) |
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{ |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// 2nd-phased constructor of two phase construction |
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// NOTE: Ownership of any of the parameters is not taken through this function call |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ConstructL( const TDesC8& aFormat, CCalendarExportParams* aParams ) |
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{ |
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if ( iAsyncRequestObserver ) |
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{ |
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iParams = aParams->CloneL(); |
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} |
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else |
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{ |
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iParams = aParams; |
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} |
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iFormat = aFormat.AllocL(); |
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iCalenExporter = CCalenExporter::NewL( * ( iCalSessionInfo->Session() ) ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Private Export Function which is internally called (by both Overloaded |
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// synchronous functions) to export the ccalentries to OutputBuffer |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ExportToBufferL( const RPointerArray<CCalEntry>& aCalEntryArray , HBufC8*& aOutputBuffer ) |
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{ |
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TFileName tempFileName; |
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TPtrC filePath( KTempFilePath ); |
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RFs fileServer; |
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User::LeaveIfError( fileServer.Connect() ); |
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CleanupClosePushL( fileServer ); |
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//writeStream for the Export to write to |
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RFileWriteStream wFileStream; |
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wFileStream.PushL(); |
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if ( iParams->Params() & CCalendarExportParams::EParamsFileName ) |
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{ |
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User::LeaveIfError( wFileStream.Replace(fileServer, iParams->ExportFileName(), EFileWrite )); |
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} |
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else |
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{ |
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//opens the temp file for reading and writing and returns its name in tempFileName |
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User::LeaveIfError( wFileStream.Temp( fileServer, filePath , tempFileName , EFileWrite )); |
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} |
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TInt calEntryArrayCount = aCalEntryArray.Count(); |
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//Step2: Exporting the Entries to wFileStream(Temporary file) |
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if ( iFormat->CompareF(KCalFmtVCal) == 0 ) |
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{ |
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for(TInt j = 0 ; j < calEntryArrayCount ; ++j ) |
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{ |
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//As the current Implementation of ExportVCal does not support taking an array of CCalEntries at a time and |
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//returning the result in the writeStream....Only one entry is supported at a time. |
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//Though it provides the overloaded functions one taking an entry at a time and the other taking array at a time |
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//the One that take an array at a time Leaves if the array length is greater than 1 |
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iCalenExporter->ExportVCalL( *aCalEntryArray[j], wFileStream ); |
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} |
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} |
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else if ( iFormat->CompareF(KCalFmtICal) == 0 ) |
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{ |
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for(TInt j = 0 ; j < calEntryArrayCount ;++j ) |
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{ |
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//As the current Implementation of ExportVCal does not support taking an array of CCalEntries at a time and |
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//returning the result in the writeStream....Only one entry is supported at a time. |
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//Though it provides the overloaded functions one taking an entry at a time and the other taking array at a time |
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//the One that take an array at a time Leaves if the array length is greater than 1 |
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iCalenExporter->ExportICalL( *aCalEntryArray[j], wFileStream ); |
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} |
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} |
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else |
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{ |
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User::Leave( KErrNotSupported ); |
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} |
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wFileStream.CommitL(); |
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wFileStream.Close(); |
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wFileStream.Pop(); |
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wFileStream.Release(); |
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//wStream( temporary file ) contains the entries exported from the calender... |
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//Coping the content to the aOutputBuffer |
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if ( !( iParams->Params() & CCalendarExportParams::EParamsFileName )) |
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{ |
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RFile file; |
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TInt fileSize; |
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User::LeaveIfError( file.Open( fileServer, tempFileName, EFileRead )); |
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CleanupClosePushL( file ); |
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file.Size( fileSize ); |
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aOutputBuffer = HBufC8::NewL( fileSize ); |
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TPtr8 temp = aOutputBuffer->Des(); |
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//reads all the contents of the temporary file into the descriptor and its length is set accoordingly |
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file.Read( temp ); |
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CleanupStack::PopAndDestroy( &file );//file |
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//deleting the temporary file using the RFs Object |
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fileServer.Delete( tempFileName ); |
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} |
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CleanupStack::PopAndDestroy( &fileServer );//fileServer |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Internal Function For Conversion of LocalUIDS to CCalEntry and call ExportToBuffer |
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// (this is called in case of Asynchronous from RUNL) |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::GetCalEntriesAndExportL( HBufC8*& aOutputBuffer ) |
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{ |
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RPointerArray<CCalEntry> calEntryArray; |
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//to store all the calendery entries correspongind to the Input LocalUID Array |
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CleanupStack::PushL( TCleanupItem(CleanupCCalEntryArray, &calEntryArray) ); |
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//Step1:Retrieving all the CCalEntryArray from the Calendar |
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CCalIter* calIter = CCalIter::NewL( *iCalSessionInfo->Session() ); |
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CleanupStack::PushL( calIter ); |
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TPtrC8 calEntryUID(calIter->FirstL()); |
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while( calEntryUID != KNullDesC8 ) |
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{ |
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//fetch the total array of entries at once for the first uid |
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iCalSessionInfo->EntryView()->FetchL( calEntryUID , calEntryArray ); |
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calEntryUID.Set(calIter->NextL()); |
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} |
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//Step2: Exporting the Entries to writeStream(Temporary file) and copying the contents to the aOutputBuffer |
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ExportToBufferL( calEntryArray, aOutputBuffer ); |
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CleanupStack::PopAndDestroy( 2, &calEntryArray ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Internal Function For Conversion of GlobalUIDS to CCalEntry and call ExportToBuffer |
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// (this is called in case of Asynchronous from RUNL) |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ConvertGUIDAndExportL( HBufC8*& aOutputBuffer ) |
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{ |
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RPointerArray< CCalEntry > calEntryArray; |
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//to store all the calendery entries correspongind to the Input GUID Array |
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CleanupStack::PushL( TCleanupItem(CleanupCCalEntryArray, &calEntryArray) ); |
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//Step1: Generating the CCalEntryArray corresponding to input GUID(Descriptor..alpha numberic) Array |
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TInt inputArrayCount = iParams->GuidArray()->Count();//MdcaCount(); this can also be used |
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for ( TInt i = 0; i < inputArrayCount; ++i ) |
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{ |
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iCalSessionInfo->EntryView()->FetchL( (*iParams->GuidArray())[i] , calEntryArray ); |
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} |
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//Step2: Exporting the Entries to writeStream(Temporary file) and copying the contents to the aOutputBuffer |
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ExportToBufferL( calEntryArray , aOutputBuffer ); |
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CleanupStack::PopAndDestroy( &calEntryArray ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Internal Function For Conversion of LocalUIDS to CCalEntry and call ExportToBuffer |
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// (this is called in case of Asynchronous from RUNL) |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ConvertLUIDAndExportL( HBufC8*& aOutputBuffer ) |
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{ |
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RPointerArray<CCalEntry> calEntryArray; //needs this to be pushed onto the stack But little support to do this |
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//to store all the calendery entries correspongind to the Input LocalUID Array |
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CleanupStack::PushL( TCleanupItem(CleanupCCalEntryArray, &calEntryArray) ); |
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//Step1:Generating the CCalEntryArray corresponding to input LocalUID(unsigned int) Array |
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TInt inputArrayCount = iParams->LocalUidArray().Count(); |
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for(TInt i = 0; i < inputArrayCount ; ++i) |
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{ |
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CCalEntry* entry = iCalSessionInfo->EntryView()->FetchL( iParams->LocalUidArray()[i] ); |
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if ( entry ) |
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{ |
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CleanupStack::PushL( entry ); |
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calEntryArray.AppendL( entry ); |
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CleanupStack::Pop( entry ); |
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} |
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} |
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//Step2: Exporting the Entries to writeStream(Temporary file) and copying the contents to the aOutputBuffer |
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ExportToBufferL( calEntryArray, aOutputBuffer ); |
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CleanupStack::PopAndDestroy( &calEntryArray ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Inherited from CActive class |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::DoCancel() |
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{ |
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NotifyRequestResult( KErrCancel ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Inherited from CActive class |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::RunL() |
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{ |
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TInt err = iStatus.Int(); |
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if ( err == KErrNone )//ExportL(const TDesC8 aFormat, RArray<TUint>& aInputLocalUidArray , HBufC8*& aOutputBuffer ) |
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{ |
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TRAP( err, ExportL( iOutputBuffer )); |
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} |
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NotifyRequestResult( err ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Activates the asynchronous request |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::ActivateRequest( TInt aReason ) |
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{ |
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iStatus = KRequestPending; |
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SetActive(); |
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TRequestStatus* temp = &iStatus; |
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User::RequestComplete( temp, aReason ); |
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} |
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// -------------------------------------------------------------------------------------------------------- |
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// Notifies callback the result for asynchronous request. |
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// -------------------------------------------------------------------------------------------------------- |
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// |
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void CCalendarExport::NotifyRequestResult( TInt aReason ) |
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{ |
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if ( iCallBack ) |
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{ |
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iAsyncRequestObserver->RequestComplete( iCallBack->iTransactionId ); |
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TRAPD( err, iCallBack->NotifyResultL( aReason, ( TAny * )( iOutputBuffer ))); |
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} |
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// caller will delete the object in case of cancel |
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if ( aReason != KErrCancel ) |
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delete this; |
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} |