diff options
Diffstat (limited to 'vcl/win/dtrans/DataFmtTransl.cxx')
| -rw-r--r-- | vcl/win/dtrans/DataFmtTransl.cxx | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/vcl/win/dtrans/DataFmtTransl.cxx b/vcl/win/dtrans/DataFmtTransl.cxx new file mode 100644 index 0000000000..5daf0b453f --- /dev/null +++ b/vcl/win/dtrans/DataFmtTransl.cxx @@ -0,0 +1,252 @@ +/* -*- 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 "DataFmtTransl.hxx" +#include <rtl/string.hxx> +#include <osl/diagnose.h> +#include <rtl/tencinfo.h> +#include "ImplHelper.hxx" +#include "WinClip.hxx" +#include "MimeAttrib.hxx" +#include "DTransHelper.hxx" +#include <rtl/string.h> +#include <o3tl/char16_t2wchar_t.hxx> +#include "Fetc.hxx" +#include <com/sun/star/datatransfer/DataFormatTranslator.hpp> + +#if !defined WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include <windows.h> +#include <shlobj.h> + +using namespace com::sun::star::uno; +using namespace com::sun::star::datatransfer; +using namespace com::sun::star::lang; + +const Type CPPUTYPE_SALINT32 = cppu::UnoType<sal_Int32>::get(); +const Type CPPUTYPE_SALINT8 = cppu::UnoType<sal_Int8>::get(); +const Type CPPUTYPE_OUSTRING = cppu::UnoType<OUString>::get(); +const Type CPPUTYPE_SEQSALINT8 = cppu::UnoType<Sequence< sal_Int8>>::get(); +const sal_Int32 MAX_CLIPFORMAT_NAME = 256; + +CDataFormatTranslator::CDataFormatTranslator( const Reference< XComponentContext >& rxContext ) +{ + m_XDataFormatTranslator = DataFormatTranslator::create( rxContext ); +} + +CFormatEtc CDataFormatTranslator::getFormatEtcFromDataFlavor( const DataFlavor& aDataFlavor ) const +{ + sal_Int32 cf = CF_INVALID; + + try + { + if( m_XDataFormatTranslator.is( ) ) + { + Any aFormat = m_XDataFormatTranslator->getSystemDataTypeFromDataFlavor( aDataFlavor ); + + if ( aFormat.hasValue( ) ) + { + if ( aFormat.getValueType( ) == CPPUTYPE_SALINT32 ) + { + aFormat >>= cf; + OSL_ENSURE( CF_INVALID != cf, "Invalid Clipboard format delivered" ); + } + else if ( aFormat.getValueType( ) == CPPUTYPE_OUSTRING ) + { + OUString aClipFmtName; + aFormat >>= aClipFmtName; + + OSL_ASSERT( aClipFmtName.getLength( ) ); + cf = RegisterClipboardFormatW( o3tl::toW(aClipFmtName.getStr( )) ); + + OSL_ENSURE( CF_INVALID != cf, "RegisterClipboardFormat failed" ); + } + else + OSL_FAIL( "Wrong Any-Type detected" ); + } + } + } + catch( ... ) + { + OSL_FAIL( "Unexpected error" ); + } + + return sal::static_int_cast<CFormatEtc>(getFormatEtcForClipformat( sal::static_int_cast<CLIPFORMAT>(cf) )); +} + +DataFlavor CDataFormatTranslator::getDataFlavorFromFormatEtc(sal_uInt32 cfFormat, LCID lcid) const +{ + DataFlavor aFlavor; + + try + { + CLIPFORMAT aClipformat = cfFormat; + + Any aAny; + aAny <<= static_cast< sal_Int32 >( aClipformat ); + + if ( isOemOrAnsiTextFormat( aClipformat ) ) + { + aFlavor.MimeType = "text/plain;charset="; + aFlavor.MimeType += getTextCharsetFromLCID( lcid, aClipformat ); + + aFlavor.HumanPresentableName = "OEM/ANSI Text"; + aFlavor.DataType = CPPUTYPE_SEQSALINT8; + } + else if ( CF_INVALID != aClipformat ) + { + if ( m_XDataFormatTranslator.is( ) ) + { + aFlavor = m_XDataFormatTranslator->getDataFlavorFromSystemDataType( aAny ); + + if ( !aFlavor.MimeType.getLength( ) ) + { + // lookup of DataFlavor from clipboard format id + // failed, so we try to resolve via clipboard + // format name + OUString clipFormatName = getClipboardFormatName( aClipformat ); + + // if we could not get a clipboard format name an + // error must have occurred or it is a standard + // clipboard format that we don't translate, e.g. + // CF_BITMAP (the office only uses CF_DIB) + if ( clipFormatName.getLength( ) ) + { + aAny <<= clipFormatName; + aFlavor = m_XDataFormatTranslator->getDataFlavorFromSystemDataType( aAny ); + } + } + } + } + } + catch( ... ) + { + OSL_FAIL( "Unexpected error" ); + } + + return aFlavor; +} + +CFormatEtc CDataFormatTranslator::getFormatEtcForClipformatName( const OUString& aClipFmtName ) +{ + // check parameter + if ( !aClipFmtName.getLength( ) ) + return CFormatEtc( CF_INVALID ); + + CLIPFORMAT cf = sal::static_int_cast<CLIPFORMAT>(RegisterClipboardFormatW( o3tl::toW(aClipFmtName.getStr( )) )); + return getFormatEtcForClipformat( cf ); +} + +OUString CDataFormatTranslator::getClipboardFormatName( CLIPFORMAT aClipformat ) +{ + OSL_PRECOND( CF_INVALID != aClipformat, "Invalid clipboard format" ); + + sal_Unicode wBuff[ MAX_CLIPFORMAT_NAME + 1 ]; // Null terminator isn't counted, apparently. + sal_Int32 nLen = GetClipboardFormatNameW( aClipformat, o3tl::toW(wBuff), MAX_CLIPFORMAT_NAME ); + + return OUString( wBuff, nLen ); +} + +CFormatEtc CDataFormatTranslator::getFormatEtcForClipformat( CLIPFORMAT cf ) +{ + CFormatEtc fetc( cf, TYMED_NULL, nullptr, DVASPECT_CONTENT ); + + switch( cf ) + { + case CF_METAFILEPICT: + fetc.setTymed( TYMED_MFPICT ); + break; + + case CF_ENHMETAFILE: + fetc.setTymed( TYMED_ENHMF ); + break; + + default: + fetc.setTymed( TYMED_HGLOBAL /*| TYMED_ISTREAM*/ ); + } + + /* + hack: in order to paste urls copied by Internet Explorer + with "copy link" we set the lindex member to 0 + but if we really want to support CFSTR_FILECONTENT and + the accompany format CFSTR_FILEDESCRIPTOR (FileGroupDescriptor) + the client of the clipboard service has to provide a id + of which FileContents it wants to paste + see MSDN: "Handling Shell Data Transfer Scenarios" + */ + if ( cf == RegisterClipboardFormat( CFSTR_FILECONTENTS ) ) + fetc.setLindex( 0 ); + + return fetc; +} + +bool CDataFormatTranslator::isOemOrAnsiTextFormat( CLIPFORMAT cf ) +{ + return ( (cf == CF_TEXT) || (cf == CF_OEMTEXT) ); +} + +bool CDataFormatTranslator::isUnicodeTextFormat( CLIPFORMAT cf ) +{ + return ( cf == CF_UNICODETEXT ); +} + +bool CDataFormatTranslator::isTextFormat( CLIPFORMAT cf ) +{ + return ( isOemOrAnsiTextFormat( cf ) || isUnicodeTextFormat( cf ) ); +} + +bool CDataFormatTranslator::isHTMLFormat( CLIPFORMAT cf ) +{ + OUString clipFormatName = getClipboardFormatName( cf ); + return ( clipFormatName == "HTML Format" ); +} + +bool CDataFormatTranslator::isTextHtmlFormat( CLIPFORMAT cf ) +{ + OUString clipFormatName = getClipboardFormatName( cf ); + return clipFormatName.equalsIgnoreAsciiCase( "HTML (HyperText Markup Language)" ); +} + +OUString CDataFormatTranslator::getTextCharsetFromLCID( LCID lcid, CLIPFORMAT aClipformat ) +{ + OSL_ASSERT( isOemOrAnsiTextFormat( aClipformat ) ); + + OUString charset; + if ( CF_TEXT == aClipformat ) + { + charset = getMimeCharsetFromLocaleId( + lcid, + LOCALE_IDEFAULTANSICODEPAGE, + PRE_WINDOWS_CODEPAGE ); + } + else if ( CF_OEMTEXT == aClipformat ) + { + charset = getMimeCharsetFromLocaleId( + lcid, + LOCALE_IDEFAULTCODEPAGE, + PRE_OEM_CODEPAGE ); + } + else // CF_UNICODE + OSL_ASSERT( false ); + + return charset; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |