lafagnosticuifoundation/cone/src/CoeDataStorage.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 13:54:51 +0300
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permissions -rw-r--r--
Revision: 201021 Kit: 2010123
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// Copyright (c) 2005-2009 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 "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:
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//
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#include <e32base.h>
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#include <s32mem.h>
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#include <centralrepository.h>
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#include <coemain.h>
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#include "CoeDataStorage.h"
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#include <coedef.h>
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#include <gulcolor.h>
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#include <barsread.h>
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#include "coepanic.h"
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#include <bautils.h>
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#include "coedefkeys.h"
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const TUint KUidSystemColorRepository=0x10272619;
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const TUint KSystemColorRepositoryKey=0;
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const TInt KColorListBufferGranularity=1024;
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const TUint KUidFepSpecificSettingsRepository=0x10009793; // also defined in fepbase\source\Fepbase.cpp
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// CCoeDataStorage
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EXPORT_C CCoeDataStorage& CCoeDataStorage::GetL(CCoeEnv& aCoeEnv)
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	{ // static
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	COwner* owner=STATIC_CAST(COwner*, aCoeEnv.FindStatic(TUid::Uid(COwner::ECoeStaticUid)));
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	if (owner==NULL)
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		{
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		CCoeDataStorage* const dataStorage=NewL();
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		CleanupStack::PushL(dataStorage);
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		owner=new(ELeave) COwner(dataStorage);
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		CleanupStack::Pop(dataStorage);
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		}
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	return *owner->DataStorage();
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	}
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EXPORT_C CCoeDataStorage* CCoeDataStorage::NewL()
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	{ // static
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	return new(ELeave) CCoeDataStorage;
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	}
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EXPORT_C CCoeDataStorage::~CCoeDataStorage()
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	{
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	delete iFepFrameworkRepository;
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	delete iFepSpecificSettingsRepository;
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	delete iSystemColorListRepository;
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	}
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EXPORT_C void CCoeDataStorage::GetInstalledFepIdL(TDes& aFepId)
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	{
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	CRepository& repository=FepFrameworkRepositoryL();
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	if (repository.Get(ERepositoryKey_DynamicFepId, aFepId)!=KErrNone)
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		{
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		User::LeaveIfError(repository.Get(ERepositoryKey_DefaultFepId, aFepId));
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		}
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	}
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EXPORT_C void CCoeDataStorage::SetInstalledFepIdL(const TDesC& aFepId)
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	{
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	User::LeaveIfError(FepFrameworkRepositoryL().Set(ERepositoryKey_DynamicFepId, aFepId));
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	}
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EXPORT_C void CCoeDataStorage::GetFepAttributeL(TUid aAttributeUid, TDes8& aAttributeData)
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	{
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	CRepository& repository=FepSpecificSettingsRepositoryL();
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	User::LeaveIfError(repository.Get(aAttributeUid.iUid, aAttributeData));
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	}
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EXPORT_C void CCoeDataStorage::SetFepAttributeL(TUid aAttributeUid, const TDesC8& aAttributeData)
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	{
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	User::LeaveIfError(FepSpecificSettingsRepositoryL().Set(aAttributeUid.iUid, aAttributeData));
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	}
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/** This method will return a new CColorList object poplulated with the color information
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read from a configuration ini-file. If the ini-file cannot be found, this method will return NULL, 
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in which case the color list should be read from resource file. This is the action taken by PopulateColorArrayL(). */
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EXPORT_C CColorList* CCoeDataStorage::GetSystemColorListL()
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	{
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	TBool doesExist = EFalse;
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	CBufFlat* const buffer = GetSystemColorListBufferLC(doesExist);
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	CColorList* colorList = NULL;
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	if (doesExist)
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		{
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		colorList=CColorList::NewLC();
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		RBufReadStream readStream(*buffer);
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		TRAPD(err,colorList->InternalizeL(readStream));
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		CleanupStack::Pop(colorList);
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		if (err != KErrNone)
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			{
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			delete colorList;
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			colorList=NULL;
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			}
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		}
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	CleanupStack::PopAndDestroy(buffer);
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	return colorList;
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	}
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EXPORT_C CBufBase* CCoeDataStorage::GetSystemColorListBufferL()
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	{
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	TBool exists=EFalse;
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	CBufFlat* const buffer=GetSystemColorListBufferLC(exists);
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	if (!exists)
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		{
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		buffer->Reset();
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		}
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	CleanupStack::Pop(buffer);
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	return buffer;
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	}
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   120
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EXPORT_C void CCoeDataStorage::SetSystemColorListL(const CColorList& aColorList)
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	{
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	CBufFlat* const buffer=CBufFlat::NewL(KColorListBufferGranularity);
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	CleanupStack::PushL(buffer);
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	RBufWriteStream writeStream(*buffer);
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	aColorList.ExternalizeL(writeStream);
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	writeStream.CommitL();
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	const TPtrC8 data(buffer->Ptr(0));
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	SetSystemColorListFromBufferL(data);
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	CleanupStack::PopAndDestroy(buffer);
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	}
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   132
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EXPORT_C void CCoeDataStorage::SetSystemColorListFromBufferL(const TDesC8& aBuffer)
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	{
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	User::LeaveIfError(SystemColorListRepositoryL().Set(KSystemColorRepositoryKey, aBuffer));
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	}
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   137
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/**
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Returns a new color list object. The list will be populated from a configuration ini-file.
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If the ini-file cannot be found, the list will be populated with the default colors from eikpriv.rsc.
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*/
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EXPORT_C CColorList* CCoeDataStorage::PopulateColorArrayL()
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	{
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	CColorList* colorList =GetSystemColorListL();
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	if (colorList==NULL)
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		{
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		TInt numGrays=0;
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		TInt numColors=0;
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		RFs fs;
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		CleanupClosePushL(fs);
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		User::LeaveIfError(fs.Connect());
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		RWsSession ws;
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		CleanupClosePushL(ws);
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		User::LeaveIfError(ws.Connect(fs));
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		TDisplayMode defaultMode=ws.GetDefModeMaxNumColors(numColors,numGrays);
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		const TInt resourceId=(defaultMode>=EColor16? KCoeColorColor16:KCoeColorGray4);
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		_LIT(KResourceFileName,"z:\\Resource\\Uiklaf\\eikpriv.rsc");
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		TFileName resourceFileName(KResourceFileName);
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		BaflUtils::NearestLanguageFile(fs,resourceFileName);
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		if (!(BaflUtils::FileExists(fs, resourceFileName)))
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			{
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			_LIT(KAppResourceFileName,"z:\\Resource\\Apps\\eikpriv.rsc");
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			resourceFileName = KAppResourceFileName;
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			BaflUtils::NearestLanguageFile(fs,resourceFileName);
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			}
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		RResourceFile resourceFile;
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		resourceFile.OpenL(fs, resourceFileName);
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		CleanupClosePushL(resourceFile);
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		resourceFile.ConfirmSignatureL(ECoeResourceSignatureValue);
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		resourceFile.Offset();
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   171
		
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		HBufC8* resource= resourceFile.AllocReadLC(resourceId);
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		TResourceReader reader;
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		reader.SetBuffer(resource);
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		const TInt listId=reader.ReadInt32();
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		const TInt extrasId=reader.ReadInt32();
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		HBufC8* resourceList =resourceFile.AllocReadLC(listId);
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		reader.SetBuffer(resourceList);			
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		CColorArray* colorArray=CColorArray::NewLC();
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		ResourceUtils::PopulateColorArrayL(*colorArray,reader);
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		__ASSERT_ALWAYS(colorArray->Count()==EColorLabelHighlightFullEmphasis+1,Panic(ECoePanicInvalidColorRange));
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		CArrayFix<TRgb>* colors=new(ELeave) CArrayFixFlat<TRgb>(8);
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		CleanupStack::PushL(colors);
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		for (TInt ii=EColorWindowBackground;ii<=EColorLabelHighlightFullEmphasis;ii++)
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			{
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			__ASSERT_ALWAYS(colorArray->Contains(ii),Panic(ECoePanicLogicalColorNotFound));
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			colors->InsertL(STATIC_CAST(TLogicalColor,ii),colorArray->Color(ii));
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			}
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		colorList=CColorList::NewL(colors);
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		CleanupStack::Pop(colors); // colors
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		CleanupStack::PushL(colorList);
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		CColorArray* extrasArray=CColorArray::NewLC();
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		HBufC8* resourceExtras=resourceFile.AllocReadLC(extrasId);
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		reader.SetBuffer(resourceExtras);		
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		ResourceUtils::PopulateColorArrayL(*extrasArray,reader);
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		colorList->AddColorArrayL(TUid::Uid(KCoeCustomColorsArrayValue),extrasArray);
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		CleanupStack::PopAndDestroy(resourceExtras);
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		CleanupStack::Pop(extrasArray); // extrasArray
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   199
		TRAP_IGNORE(SetSystemColorListL(*colorList) );
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		CleanupStack::Pop(colorList);
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   201
		CleanupStack::PopAndDestroy(colorArray); // colorArray
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		CleanupStack::PopAndDestroy(resourceList);
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   203
		CleanupStack::PopAndDestroy(resource);
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		CleanupStack::PopAndDestroy(3); // resourceFile,ws, fs
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		}
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	return colorList;
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	}
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   208
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   209
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CRepository& CCoeDataStorage::FepFrameworkRepositoryL()
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	{
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	if (iFepFrameworkRepository==NULL)
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		{
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		iFepFrameworkRepository=CRepository::NewL(TUid::Uid(KUidFepFrameworkRepository));
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		}
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	return *iFepFrameworkRepository;
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	}
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CRepository& CCoeDataStorage::FepSpecificSettingsRepositoryL()
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	{
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	if (iFepSpecificSettingsRepository==NULL)
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		{
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		iFepSpecificSettingsRepository=CRepository::NewL(TUid::Uid(KUidFepSpecificSettingsRepository));
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		}
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	return *iFepSpecificSettingsRepository;
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	}
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CRepository& CCoeDataStorage::SystemColorListRepositoryL()
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	{
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	if (iSystemColorListRepository==NULL)
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		{
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		iSystemColorListRepository=CRepository::NewL(TUid::Uid(KUidSystemColorRepository));
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		}
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	return *iSystemColorListRepository;
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	}
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CBufFlat* CCoeDataStorage::GetSystemColorListBufferLC(TBool& aExists)
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	{
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	aExists=ETrue;
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	CRepository& repository=SystemColorListRepositoryL();
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	CBufFlat* const buffer=CBufFlat::NewL(2048);
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	CleanupStack::PushL(buffer);
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	FOREVER
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		{
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		TInt sizeOfBufferToAllocate=0;
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		TPtr8 bufferAsDescriptor(buffer->Ptr(0));
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		const TInt error=repository.Get(KSystemColorRepositoryKey, bufferAsDescriptor, sizeOfBufferToAllocate);
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		if (error==KErrOverflow)
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			{
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			buffer->ResizeL(sizeOfBufferToAllocate);
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			}
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		else
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			{
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			if (error==KErrNotFound)
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				{
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				aExists=EFalse;
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				}
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			else
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				{
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				User::LeaveIfError(error);
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				}
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			break;
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			}
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		}
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	return buffer;
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	}
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// CCoeDataStorage::COwner
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CCoeDataStorage::COwner::COwner(CCoeDataStorage* aDataStorage)
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	:CCoeStatic(TUid::Uid(ECoeStaticUid), KMinTInt), // the second parameter (aDestructionPriority) must be less than zero so that this CCoeStatic object still exists when the CCoeEnv's iExtra->iFepTracker is destroyed, as CCoeFepTracker's destructor uses this CCoeStatic object (via CCoeFepTracker's iRepository reference)
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	 iDataStorage(aDataStorage)
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	{
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	}
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CCoeDataStorage::COwner::~COwner()
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	{
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	delete iDataStorage;
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	}
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