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diff --git a/vcl/win/dtrans/FetcList.cxx b/vcl/win/dtrans/FetcList.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <osl/diagnose.h>
+#include "FetcList.hxx"
+#include "Fetc.hxx"
+#include <com/sun/star/container/NoSuchElementException.hpp>
+#include <com/sun/star/datatransfer/MimeContentTypeFactory.hpp>
+#include <com/sun/star/datatransfer/XMimeContentType.hpp>
+
+#include "DataFmtTransl.hxx"
+#include "ImplHelper.hxx"
+#include "WinClip.hxx"
+
+#include <algorithm>
+
+#include "MimeAttrib.hxx"
+
+using namespace com::sun::star::uno;
+using namespace com::sun::star::datatransfer;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::container;
+
+LCID CFormatRegistrar::m_TxtLocale = 0;
+sal_uInt32 CFormatRegistrar::m_TxtCodePage = GetACP( );
+
+CFormatEtcContainer::CFormatEtcContainer( )
+{
+ m_EnumIterator = m_FormatMap.begin( );
+}
+
+void CFormatEtcContainer::addFormatEtc( const CFormatEtc& fetc )
+{
+ m_FormatMap.push_back( fetc );
+}
+
+void CFormatEtcContainer::removeFormatEtc( const CFormatEtc& fetc )
+{
+ FormatEtcMap_t::iterator iter =
+ find( m_FormatMap.begin(), m_FormatMap.end(), fetc );
+
+ if ( iter != m_FormatMap.end( ) )
+ m_FormatMap.erase( iter );
+}
+
+void CFormatEtcContainer::removeAllFormatEtc( )
+{
+ m_FormatMap.clear( );
+}
+
+bool CFormatEtcContainer::hasFormatEtc( const CFormatEtc& fetc ) const
+{
+ FormatEtcMap_t::const_iterator iter =
+ find( m_FormatMap.begin(), m_FormatMap.end(), fetc );
+
+ return ( iter != m_FormatMap.end( ) );
+}
+
+bool CFormatEtcContainer::hasElements( ) const
+{
+ return !m_FormatMap.empty();
+}
+
+void CFormatEtcContainer::beginEnumFormatEtc( )
+{
+ m_EnumIterator = m_FormatMap.begin( );
+}
+
+sal_uInt32 CFormatEtcContainer::nextFormatEtc( LPFORMATETC lpFetc,
+ sal_uInt32 aNum )
+{
+ OSL_ASSERT( lpFetc );
+ OSL_ASSERT( !IsBadWritePtr( lpFetc, sizeof( FORMATETC ) * aNum ) );
+
+ sal_uInt32 nFetched = 0;
+
+ for ( sal_uInt32 i = 0; i < aNum; i++, nFetched++, lpFetc++, ++m_EnumIterator )
+ {
+ if ( m_EnumIterator == m_FormatMap.end() )
+ break;
+ CopyFormatEtc( lpFetc, *m_EnumIterator );
+ }
+
+ return nFetched;
+}
+
+bool CFormatEtcContainer::skipFormatEtc( sal_uInt32 aNum )
+{
+ FormatEtcMap_t::const_iterator iter_end = m_FormatMap.end( );
+ for ( sal_uInt32 i = 0;
+ (i < aNum) && (m_EnumIterator != iter_end);
+ i++, ++m_EnumIterator )
+ ;/* intentionally left empty */
+
+ return ( m_EnumIterator != m_FormatMap.end( ) );
+}
+
+CFormatRegistrar::CFormatRegistrar( const Reference< XComponentContext >& rxContext,
+ const CDataFormatTranslator& aDataFormatTranslator ) :
+ m_DataFormatTranslator( aDataFormatTranslator ),
+ m_bHasSynthesizedLocale( false ),
+ m_xContext( rxContext )
+{
+}
+
+// this function converts all DataFlavors of the given FlavorList into
+// an appropriate FORMATETC structure, for some formats like unicodetext,
+// text and text/html we will offer an accompany format e.g.:
+//
+// DataFlavor | Registered Clipformat | Registered accompany clipformat
+// -------------------------|---------------------------|-----------------------------------
+// text/plain;charset=ansi | CF_TEXT | CF_UNICODETEXT
+// | | CF_LOCALE (if charset != GetACP()
+// | |
+// text/plain;charset=oem | CF_OEMTEXT | CF_UNICODETEXT
+// | | CF_LOCALE (if charset != GetOEMCP()
+// | |
+// text/plain;charset=utf-16| CF_UNICODETEXT | CF_TEXT
+// | |
+// text/html | HTML (Hypertext ...) | HTML Format
+// | |
+//
+// if some tries to register different text formats with different charsets the last
+// registered wins and the others are ignored
+
+void CFormatRegistrar::RegisterFormats(
+ const Reference< XTransferable >& aXTransferable, CFormatEtcContainer& aFormatEtcContainer )
+{
+ Sequence< DataFlavor > aFlavorList = aXTransferable->getTransferDataFlavors( );
+ sal_Int32 nFlavors = aFlavorList.getLength( );
+ bool bUnicodeRegistered = false;
+ DataFlavor aFlavor;
+
+ for( sal_Int32 i = 0; i < nFlavors; i++ )
+ {
+ aFlavor = aFlavorList[i];
+ CFormatEtc fetc = m_DataFormatTranslator.getFormatEtcFromDataFlavor( aFlavor );
+
+ // maybe an internal format so we ignore it
+ if ( CF_INVALID == fetc.getClipformat( ) )
+ continue;
+
+ if ( !needsToSynthesizeAccompanyFormats( fetc ) )
+ aFormatEtcContainer.addFormatEtc( fetc );
+ else
+ {
+ // if we haven't registered any text format up to now
+ if ( CDataFormatTranslator::isTextFormat( fetc.getClipformat() ) && !bUnicodeRegistered )
+ {
+ // if the transferable supports unicode text we ignore
+ // any further text format the transferable offers
+ // because we can create it from Unicode text in addition
+ // we register CF_TEXT for non unicode clients
+ if ( CDataFormatTranslator::isUnicodeTextFormat( fetc.getClipformat() ) )
+ {
+ aFormatEtcContainer.addFormatEtc( fetc ); // add CF_UNICODE
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformat( CF_TEXT ) ); // add CF_TEXT
+ bUnicodeRegistered = true;
+ }
+ else if ( !hasUnicodeFlavor( aXTransferable ) )
+ {
+ // we try to investigate the charset and make a valid
+ // windows codepage from this charset the default
+ // return value is the result of GetACP( )
+ OUString charset = getCharsetFromDataFlavor( aFlavor );
+ sal_uInt32 txtCP = getWinCPFromMimeCharset( charset );
+
+ // we try to get a Locale appropriate for this codepage
+ if ( findLocaleForTextCodePage( ) )
+ {
+ m_TxtCodePage = txtCP;
+
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformat( CF_UNICODETEXT ) );
+
+ if ( !IsOEMCP( m_TxtCodePage ) )
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformat( CF_TEXT ) );
+ else
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformat( CF_OEMTEXT ) );
+
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformat( CF_LOCALE ) );
+
+ // we save the flavor so it's easier when
+ // queried for it in XTDataObject::GetData(...)
+ m_RegisteredTextFlavor = aFlavor;
+ m_bHasSynthesizedLocale = true;
+ }
+ }
+ }
+ else if ( CDataFormatTranslator::isTextHtmlFormat( fetc.getClipformat( ) ) ) // Html (Hyper Text...)
+ {
+ // we add text/html ( HTML (HyperText Markup Language) )
+ aFormatEtcContainer.addFormatEtc( fetc );
+
+ // and HTML Format
+ aFormatEtcContainer.addFormatEtc(
+ CDataFormatTranslator::getFormatEtcForClipformatName( "HTML Format" ) );
+ }
+ }
+ }
+}
+
+bool CFormatRegistrar::hasSynthesizedLocale( ) const
+{
+ return m_bHasSynthesizedLocale;
+}
+
+LCID CFormatRegistrar::getSynthesizedLocale( )
+{
+ return m_TxtLocale;
+}
+
+sal_uInt32 CFormatRegistrar::getRegisteredTextCodePage( )
+{
+ return m_TxtCodePage;
+}
+
+DataFlavor CFormatRegistrar::getRegisteredTextFlavor( ) const
+{
+ return m_RegisteredTextFlavor;
+}
+
+bool CFormatRegistrar::isSynthesizeableFormat( const CFormatEtc& aFormatEtc )
+{
+ return ( CDataFormatTranslator::isOemOrAnsiTextFormat( aFormatEtc.getClipformat() ) ||
+ CDataFormatTranslator::isUnicodeTextFormat( aFormatEtc.getClipformat() ) ||
+ CDataFormatTranslator::isHTMLFormat( aFormatEtc.getClipformat() ) );
+}
+
+inline
+bool CFormatRegistrar::needsToSynthesizeAccompanyFormats( const CFormatEtc& aFormatEtc )
+{
+ return ( CDataFormatTranslator::isOemOrAnsiTextFormat( aFormatEtc.getClipformat() ) ||
+ CDataFormatTranslator::isUnicodeTextFormat( aFormatEtc.getClipformat() ) ||
+ CDataFormatTranslator::isTextHtmlFormat( aFormatEtc.getClipformat( ) ) );
+}
+
+OUString CFormatRegistrar::getCharsetFromDataFlavor( const DataFlavor& aFlavor )
+{
+ OUString charset;
+
+ try
+ {
+ Reference< XMimeContentTypeFactory > xMimeFac =
+ MimeContentTypeFactory::create(m_xContext);
+
+ Reference< XMimeContentType > xMimeType( xMimeFac->createMimeContentType( aFlavor.MimeType ) );
+ if ( xMimeType->hasParameter( TEXTPLAIN_PARAM_CHARSET ) )
+ charset = xMimeType->getParameterValue( TEXTPLAIN_PARAM_CHARSET );
+ else
+ charset = getMimeCharsetFromWinCP( GetACP( ), PRE_WINDOWS_CODEPAGE );
+ }
+ catch(NoSuchElementException&)
+ {
+ OSL_FAIL( "Unexpected" );
+ }
+ catch(...)
+ {
+ OSL_FAIL( "Invalid data flavor" );
+ }
+
+ return charset;
+}
+
+bool CFormatRegistrar::hasUnicodeFlavor( const Reference< XTransferable >& aXTransferable ) const
+{
+ DataFlavor aFlavor = m_DataFormatTranslator.getDataFlavorFromFormatEtc(CF_UNICODETEXT);
+
+ return aXTransferable->isDataFlavorSupported( aFlavor );
+}
+
+bool CFormatRegistrar::findLocaleForTextCodePage( )
+{
+ m_TxtLocale = 0;
+ EnumSystemLocalesA( CFormatRegistrar::EnumLocalesProc, LCID_INSTALLED );
+ return IsValidLocale( m_TxtLocale, LCID_INSTALLED );
+}
+
+bool CFormatRegistrar::isLocaleCodePage( LCID lcid, LCTYPE lctype, sal_uInt32 codepage )
+{
+ char buff[6];
+ sal_uInt32 localeCodePage;
+
+ OSL_ASSERT( IsValidLocale( lcid, LCID_INSTALLED ) );
+
+ // get the ansi codepage of the current locale
+ GetLocaleInfoA( lcid, lctype, buff, sizeof( buff ) );
+ localeCodePage = atol( buff );
+
+ return ( localeCodePage == codepage );
+}
+
+inline
+bool CFormatRegistrar::isLocaleOemCodePage( LCID lcid, sal_uInt32 codepage )
+{
+ return isLocaleCodePage( lcid, LOCALE_IDEFAULTCODEPAGE, codepage );
+}
+
+inline
+bool CFormatRegistrar::isLocaleAnsiCodePage( LCID lcid, sal_uInt32 codepage )
+{
+ return isLocaleCodePage( lcid, LOCALE_IDEFAULTANSICODEPAGE, codepage );
+}
+
+BOOL CALLBACK CFormatRegistrar::EnumLocalesProc( LPSTR lpLocaleStr )
+{
+ // the lpLocaleStr parameter is hexadecimal
+ LCID lcid = strtol( lpLocaleStr, nullptr, 16 );
+
+ if ( isLocaleAnsiCodePage( lcid, CFormatRegistrar::m_TxtCodePage ) ||
+ isLocaleOemCodePage( lcid, CFormatRegistrar::m_TxtCodePage ) )
+ {
+ CFormatRegistrar::m_TxtLocale = lcid;
+ return false; // stop enumerating
+ }
+
+ return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */