profilesapplication/Profiles/ProfileApp/SettingsViewSrc/ProfileMmfInfoUtility.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 31 Mar 2010 21:31:25 +0300
branchRCL_3
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Revision: 201011 Kit: 201013
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/*
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* Copyright (c) 2002-2006 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:   A wrapper interface around MMF (Multimedia Framework) to get
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*                information about MIME-types supported by MMF.
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*
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*/
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// CLASS HEADER
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#include    "ProfileMmfInfoUtility.h"
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// INTERNAL INCLUDES
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// EXTERNAL INCLUDES
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#include <e32std.h>
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#include <badesca.h>
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#include <mmf/common/mmfcontrollerpluginresolver.h>
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#include <caf/caf.h>
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namespace
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	{
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	// CONSTANTS
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	_LIT8( KProfileRngMimeType,    "application/vnd.nokia.ringing-tone" );
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	//_LIT8( KProfilePlainTextType,  "text/plain" );
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    }
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CProfileMmfInfoUtility::IsMimeTypeSupported
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// -----------------------------------------------------------------------------
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//
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TBool ProfileMmfInfoUtility::IsMimeTypeSupportedL( const TDesC8& aMimeType )
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    {
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    //if( aMimeType.CompareF( KProfilePlainTextType ) == 0 )
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    //    {
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    //    return EFalse;
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    //    }
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    if( aMimeType.CompareF( KProfileRngMimeType ) == 0 )
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        {
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        return ETrue;
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        }
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    TBool result( EFalse );
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	CMMFFormatSelectionParameters* formatPrms =
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        CMMFFormatSelectionParameters::NewLC();
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	CMMFControllerPluginSelectionParameters* controllerPrms =
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        CMMFControllerPluginSelectionParameters::NewLC();
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    // Empty format parameters means: "get all the supported formats"
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    controllerPrms->SetRequiredPlayFormatSupportL( *formatPrms );
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    RMMFControllerImplInfoArray cntrlArray;
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    controllerPrms->ListImplementationsL( cntrlArray );
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    for( TInt i( cntrlArray.Count() - 1 ); i >= 0 && !result; --i )
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        {
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        const RMMFFormatImplInfoArray&
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            infoArray( cntrlArray[i]->PlayFormats() );
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        for( TInt j( infoArray.Count() - 1 ); j >= 0; --j )
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            {
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            if( infoArray[j]->SupportsMimeType( aMimeType ) )
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                {
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                result = ETrue;
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                break;
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                }
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            }
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        }
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	cntrlArray.ResetAndDestroy();
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	cntrlArray.Close();
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    CleanupStack::PopAndDestroy( 2, formatPrms );
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    return result;
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    }
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// -----------------------------------------------------------------------------
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// CProfileMmfInfoUtility::IsHeaderDataSupportedL
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// -----------------------------------------------------------------------------
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//
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TBool ProfileMmfInfoUtility::IsHeaderDataSupportedL( const TDesC& aFileName )
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	{
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	TBool result( EFalse );
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	//the max header length is 256 bytes
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	const TInt KMaxHeaderLength( 256 );
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	HBufC8* header = HBufC8::NewLC( KMaxHeaderLength );
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	TPtr8 headerPtr = header->Des();
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	GetFileHeaderDataL( aFileName, headerPtr, KMaxHeaderLength );
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	CMMFFormatSelectionParameters* formatPrms =
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			CMMFFormatSelectionParameters::NewLC();
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	CMMFControllerPluginSelectionParameters* controllerPrms =
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			CMMFControllerPluginSelectionParameters::NewLC();
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	// Empty format parameters means: "get all the supported formats"
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	controllerPrms->SetRequiredPlayFormatSupportL( *formatPrms );
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	RMMFControllerImplInfoArray cntrlArray;
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	controllerPrms->ListImplementationsL( cntrlArray );
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	for ( TInt i( cntrlArray.Count() - 1 ); i >= 0 && !result; --i )
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		{
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		const RMMFFormatImplInfoArray& infoArray( cntrlArray[i]->PlayFormats() );
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		for ( TInt j(infoArray.Count() - 1); j >= 0; --j )
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			{
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			if ( infoArray[j]->SupportsHeaderDataL( *header ) )
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				{
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				result = ETrue;
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				break;
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				}
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			}
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		}
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	cntrlArray.ResetAndDestroy();
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	cntrlArray.Close();
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	CleanupStack::PopAndDestroy( 3, header );//controllerPrms, formatPrms and header
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	return result;
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	}
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// -----------------------------------------------------------------------------
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// CProfileMmfInfoUtility::GetFileHeaderDataL
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// -----------------------------------------------------------------------------
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//
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void ProfileMmfInfoUtility::GetFileHeaderDataL( const TDesC& aFileName,
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		TDes8& aHeaderData, TInt aMaxHeaderLength )
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	{
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	TInt error = KErrNone;
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	using namespace ContentAccess;
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	TVirtualPathPtr path( aFileName, ContentAccess::KDefaultContentObject );
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	CData* data = CData::NewLC( path, EContentShareReadWrite );
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	TInt size = 0;
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	data->DataSizeL( size );
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	if ( size > 0 )
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		{
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		if ( size > aMaxHeaderLength )
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			size = aMaxHeaderLength;
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		TInt pos = 0;
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		error = data->Seek( ESeekStart, pos );
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		error = data->Read( aHeaderData, size );
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		}
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	CleanupStack::PopAndDestroy(); // data
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	}
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0
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//  End of File
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