Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 769 insertions, 0 deletions

diff --git a/vcl/osx/DataFlavorMapping.cxx b/vcl/osx/DataFlavorMapping.cxx
new file mode 100644
index 000000000..274a2b4a4
--- /dev/null
+++ b/vcl/osx/DataFlavorMapping.cxx
@@ -0,0 +1,769 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 <sal/config.h>
+#include <sal/log.hxx>
+
+#include "DataFlavorMapping.hxx"
+#include "HtmlFmtFlt.hxx"
+#include "PictToBmpFlt.hxx"
+#include <com/sun/star/datatransfer/UnsupportedFlavorException.hpp>
+#include <com/sun/star/datatransfer/XMimeContentType.hpp>
+#include <com/sun/star/datatransfer/MimeContentTypeFactory.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <comphelper/processfactory.hxx>
+
+#include <rtl/ustring.hxx>
+#include <osl/endian.h>
+
+#include <cassert>
+#include <string.h>
+#include <string_view>
+
+#include <premac.h>
+#include <Cocoa/Cocoa.h>
+#include <postmac.h>
+
+using namespace ::com::sun::star::datatransfer;
+using namespace ::com::sun::star::uno;
+using namespace com::sun::star::lang;
+using namespace cppu;
+
+namespace
+{
+  /* Determine whether or not a DataFlavor is valid.
+   */
+  bool isValidFlavor(const DataFlavor& aFlavor)
+  {
+    size_t len = aFlavor.MimeType.getLength();
+    Type dtype = aFlavor.DataType;
+    return ((len > 0) && ((dtype == cppu::UnoType<Sequence<sal_Int8>>::get()) || (dtype == cppu::UnoType<OUString>::get())));
+  }
+
+  OUString NSStringToOUString( const NSString* cfString)
+  {
+    assert(cfString && "Invalid parameter");
+
+    const char* utf8Str = [cfString UTF8String];
+    unsigned int len = rtl_str_getLength(utf8Str);
+
+    return OUString(utf8Str, len, RTL_TEXTENCODING_UTF8);
+  }
+
+  NSString* OUStringToNSString(std::u16string_view ustring)
+  {
+    OString utf8Str = OUStringToOString(ustring, RTL_TEXTENCODING_UTF8);
+    return [NSString stringWithCString: utf8Str.getStr() encoding: NSUTF8StringEncoding];
+  }
+
+  const char* FLAVOR_SESX = "application/x-openoffice-embed-source-xml;windows_formatname=\"Star Embed Source (XML)\"";
+  const char* FLAVOR_SLSDX = "application/x-openoffice-linksrcdescriptor-xml;windows_formatname=\"Star Link Source Descriptor (XML)\"";
+  const char* FLAVOR_ESX = "application/x-openoffice-embed-source-xml;windows_formatname=\"Star Embed Source (XML)\"";
+  const char* FLAVOR_LSX = "application/x-openoffice-link-source-xml;windows_formatname=\"Star Link Source (XML)\"";
+  const char* FLAVOR_EOX = "application/x-openoffice-embedded-obj-xml;windows_formatname=\"Star Embedded Object (XML)\"";
+  const char* FLAVOR_SVXB = "application/x-openoffice-svbx;windows_formatname=\"SVXB (StarView Bitmap/Animation)\"";
+  const char* FLAVOR_GDIMF = "application/x-openoffice-gdimetafile;windows_formatname=\"GDIMetaFile\"";
+  const char* FLAVOR_WMF = "application/x-openoffice-wmf;windows_formatname=\"Image WMF\"";
+  const char* FLAVOR_EMF = "application/x-openoffice-emf;windows_formatname=\"Image EMF\"";
+  const char* FLAVOR_SODX = "application/x-openoffice-objectdescriptor-xml;windows_formatname=\"Star Object Descriptor (XML)\"";
+  const char* FLAVOR_LINK = "application/x-openoffice-link;windows_formatname=\"Link\"";
+  const char* FLAVOR_DUMMY_INTERNAL = "application/x-openoffice-internal";
+
+  struct FlavorMap
+  {
+    const NSString* SystemFlavor;
+    const char* OOoFlavor;
+    const char* HumanPresentableName;
+    bool DataTypeOUString; // sequence<byte> otherwise
+  };
+
+  // This is a list of the bidirectional mapping between (internal) MIME types and (system)
+  // pasteboard types.
+
+  // Only pasteboard types mentioned here will be recognized, mapped, and available for pasting in a
+  // fresh LibreOffice process. When copy-pasting in-process, the situation is different.
+
+  // Also MIME types not mentioned here will be stored on the pasteboard (using the same type name),
+  // though. But that is IMHO a bit pointless as they in general won't then be pasteable anyway in a
+  // new LibreOffice process. See the use of the maOfficeOnlyTypes array.
+
+  // The SystemFlavor member is nil for the cases where there is no predefined pasteboard type UTI
+  // and we use the internal MIME type (media type) also on the pasteboard. That is OK in macOS,
+  // there is no requirement that the types are well-formed UTIs. It is different on iOS, I think,
+  // though. For an introduction to UTIs, see for instance
+  // https://alastairs-place.net/blog/2012/06/06/utis-are-better-than-you-think-and-heres-why/
+  //
+  // In those cases the MIME type might actually have parameters appended, separated by semicolons.
+  // At least the FLAVOR_SODX one must have at least a typename="%PRODUCTNAME %PRODUCTVERSION
+  // Spreadsheet" parameter (with macros expanded and translated) for LO to recognise it. See
+  // lcl_TestFormat() in sc/source/ui/view/cellsh.cxx.
+
+  const FlavorMap flavorMap[] =
+    {
+      { NSPasteboardTypeString, "text/plain;charset=utf-16", "Unicode Text (UTF-16)", true },
+      { NSPasteboardTypeRTF, "text/rtf", "Rich Text Format", false },
+      { NSPasteboardTypePDF, "application/pdf", "PDF File", false },
+      { NSPasteboardTypeTIFF, "image/png", "Portable Network Graphics", false },
+      { NSPasteboardTypeHTML, "text/html", "Plain Html", false },
+SAL_WNODEPRECATED_DECLARATIONS_PUSH
+          // "'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create
+          // multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead"
+      { NSFilenamesPboardType, "application/x-openoffice-filelist;windows_formatname=\"FileList\"", "FileList", false },
+SAL_WNODEPRECATED_DECLARATIONS_POP
+      { nil, FLAVOR_SESX, "Star Embed Source (XML)", false },
+      { nil, FLAVOR_SLSDX, "Star Link Source Descriptor (XML)", false },
+      { nil, FLAVOR_ESX, "Star Embed Source (XML)", false },
+      { nil, FLAVOR_LSX, "Star Link Source (XML)", false },
+      { nil, FLAVOR_EOX, "Star Embedded Object (XML)", false },
+      { nil, FLAVOR_SVXB, "SVXB (StarView Bitmap/Animation", false },
+      { nil, FLAVOR_GDIMF, "GDIMetaFile", false },
+      { nil, FLAVOR_WMF, "Windows MetaFile", false },
+      { nil, FLAVOR_EMF, "Windows Enhanced MetaFile", false },
+      { nil, FLAVOR_SODX, "Star Object Descriptor (XML)", false },
+      { nil, FLAVOR_LINK, "Dynamic Data Exchange (DDE link)", false },
+      { nil, FLAVOR_DUMMY_INTERNAL, "internal data",false }
+    };
+
+  #define SIZE_FLAVOR_MAP (sizeof(flavorMap)/sizeof(FlavorMap))
+
+  bool isByteSequenceType(const Type& theType)
+  {
+    return (theType == cppu::UnoType<Sequence<sal_Int8>>::get());
+  }
+
+  bool isOUStringType(const Type& theType)
+  {
+    return (theType == cppu::UnoType<OUString>::get() );
+  }
+
+/* A base class for other data provider.
+ */
+class DataProviderBaseImpl : public DataProvider
+{
+public:
+  DataProviderBaseImpl(const Any& data);
+  DataProviderBaseImpl(id data);
+  virtual ~DataProviderBaseImpl() override;
+
+protected:
+  Any mData;
+  //NSData* mSystemData;
+  id mSystemData;
+};
+
+} // unnamed namespace
+
+DataProviderBaseImpl::DataProviderBaseImpl(const Any& data) :
+  mData(data),
+  mSystemData(nil)
+{
+}
+
+DataProviderBaseImpl::DataProviderBaseImpl(id data) :
+  mSystemData(data)
+{
+  [mSystemData retain];
+}
+
+DataProviderBaseImpl::~DataProviderBaseImpl()
+{
+  if (mSystemData)
+  {
+      [mSystemData release];
+  }
+}
+
+namespace {
+
+class UniDataProvider : public DataProviderBaseImpl
+{
+public:
+  UniDataProvider(const Any& data);
+
+  UniDataProvider(NSData* data);
+
+  virtual NSData* getSystemData() override;
+
+  virtual Any getOOoData() override;
+};
+
+}
+
+UniDataProvider::UniDataProvider(const Any& data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+UniDataProvider::UniDataProvider(NSData* data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+NSData* UniDataProvider::getSystemData()
+{
+  OUString ustr;
+  mData >>= ustr;
+
+  OString strUtf8;
+  ustr.convertToString(&strUtf8, RTL_TEXTENCODING_UTF8, OUSTRING_TO_OSTRING_CVTFLAGS);
+
+  return [NSData dataWithBytes: strUtf8.getStr() length: strUtf8.getLength()];
+}
+
+Any UniDataProvider::getOOoData()
+{
+  Any oOOData;
+
+  if (mSystemData)
+  {
+      oOOData <<= OUString(static_cast<const char*>([mSystemData bytes]),
+                                 [mSystemData length],
+                                 RTL_TEXTENCODING_UTF8);
+  }
+  else
+  {
+      oOOData = mData;
+  }
+
+  return oOOData;
+}
+
+namespace {
+
+class ByteSequenceDataProvider : public DataProviderBaseImpl
+{
+public:
+  ByteSequenceDataProvider(const Any& data);
+
+  ByteSequenceDataProvider(NSData* data);
+
+  virtual NSData* getSystemData() override;
+
+  virtual Any getOOoData() override;
+};
+
+}
+
+ByteSequenceDataProvider::ByteSequenceDataProvider(const Any& data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+ByteSequenceDataProvider::ByteSequenceDataProvider(NSData* data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+NSData* ByteSequenceDataProvider::getSystemData()
+{
+   Sequence<sal_Int8> rawData;
+   mData >>= rawData;
+
+   return [NSData dataWithBytes: rawData.getArray() length: rawData.getLength()];
+}
+
+Any ByteSequenceDataProvider::getOOoData()
+{
+  Any oOOData;
+
+  if (mSystemData)
+  {
+      unsigned int flavorDataLength = [mSystemData length];
+      Sequence<sal_Int8> byteSequence;
+      byteSequence.realloc(flavorDataLength);
+      memcpy(byteSequence.getArray(), [mSystemData bytes], flavorDataLength);
+      oOOData <<= byteSequence;
+  }
+  else
+  {
+      oOOData =  mData;
+  }
+
+  return oOOData;
+}
+
+namespace {
+
+class HTMLFormatDataProvider : public DataProviderBaseImpl
+{
+public:
+  HTMLFormatDataProvider(NSData* data);
+
+  virtual NSData* getSystemData() override;
+
+  virtual Any getOOoData() override;
+};
+
+}
+
+HTMLFormatDataProvider::HTMLFormatDataProvider(NSData* data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+NSData* HTMLFormatDataProvider::getSystemData()
+{
+  Sequence<sal_Int8> textHtmlData;
+  mData >>= textHtmlData;
+
+  Sequence<sal_Int8> htmlFormatData = TextHtmlToHTMLFormat(textHtmlData);
+
+  return [NSData dataWithBytes: htmlFormatData.getArray() length: htmlFormatData.getLength()];
+}
+
+Any HTMLFormatDataProvider::getOOoData()
+{
+  Any oOOData;
+
+  if (mSystemData)
+  {
+      unsigned int flavorDataLength = [mSystemData length];
+      Sequence<sal_Int8> unkHtmlData;
+
+      unkHtmlData.realloc(flavorDataLength);
+      memcpy(unkHtmlData.getArray(), [mSystemData bytes], flavorDataLength);
+
+      Sequence<sal_Int8>* pPlainHtml = &unkHtmlData;
+      Sequence<sal_Int8> plainHtml;
+
+      if (isHTMLFormat(unkHtmlData))
+      {
+          plainHtml = HTMLFormatToTextHtml(unkHtmlData);
+          pPlainHtml = &plainHtml;
+      }
+
+      oOOData <<= *pPlainHtml;
+  }
+  else
+  {
+      oOOData = mData;
+  }
+
+  return oOOData;
+}
+
+namespace {
+
+
+class PNGDataProvider : public DataProviderBaseImpl
+{
+    NSBitmapImageFileType meImageType;
+public:
+    PNGDataProvider( const Any&, NSBitmapImageFileType);
+
+    PNGDataProvider( NSData*, NSBitmapImageFileType);
+
+    virtual NSData* getSystemData() override;
+
+    virtual Any getOOoData() override;
+};
+
+}
+
+PNGDataProvider::PNGDataProvider( const Any& data, NSBitmapImageFileType eImageType) :
+  DataProviderBaseImpl(data),
+  meImageType( eImageType )
+{
+}
+
+PNGDataProvider::PNGDataProvider( NSData* data, NSBitmapImageFileType eImageType) :
+  DataProviderBaseImpl(data),
+  meImageType( eImageType )
+{
+}
+
+NSData* PNGDataProvider::getSystemData()
+{
+    Sequence<sal_Int8> pngData;
+    mData >>= pngData;
+
+    Sequence<sal_Int8> imgData;
+    NSData* sysData = nullptr;
+    if( PNGToImage( pngData, imgData, meImageType))
+        sysData = [NSData dataWithBytes: imgData.getArray() length: imgData.getLength()];
+
+    return sysData;
+}
+
+/* The AOO 'PCT' filter is not yet good enough to be used
+   and there is no flavor defined for exchanging 'PCT' with AOO
+   so we convert 'PCT' to a PNG and provide this to AOO
+*/
+Any PNGDataProvider::getOOoData()
+{
+    Any oOOData;
+
+    if( mSystemData)
+    {
+        const unsigned int flavorDataLength = [mSystemData length];
+        Sequence<sal_Int8> imgData( flavorDataLength);
+        memcpy( imgData.getArray(), [mSystemData bytes], flavorDataLength);
+
+        Sequence<sal_Int8> pngData;
+        if( ImageToPNG( imgData, pngData))
+            oOOData <<= pngData;
+    }
+    else
+    {
+        oOOData = mData;
+    }
+
+    return oOOData;
+}
+
+namespace {
+
+class FileListDataProvider : public DataProviderBaseImpl
+{
+public:
+  FileListDataProvider(const Any& data);
+  FileListDataProvider(NSArray* data);
+
+  virtual NSData* getSystemData() override;
+  virtual Any getOOoData() override;
+};
+
+}
+
+FileListDataProvider::FileListDataProvider(const Any& data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+FileListDataProvider::FileListDataProvider(NSArray* data) :
+  DataProviderBaseImpl(data)
+{
+}
+
+NSData* FileListDataProvider::getSystemData()
+{
+  return [NSData data];
+}
+
+Any FileListDataProvider::getOOoData()
+{
+  Any oOOData;
+
+  if (mSystemData)
+  {
+      size_t length = [mSystemData count];
+      size_t lenSeqRequired = 0;
+
+      for (size_t i = 0; i < length; i++)
+      {
+          NSString* fname = [mSystemData objectAtIndex: i];
+          lenSeqRequired += [fname maximumLengthOfBytesUsingEncoding: NSUnicodeStringEncoding] + sizeof(unichar);
+      }
+
+      Sequence<sal_Int8> oOOFileList(lenSeqRequired);
+      unichar* pBuffer = reinterpret_cast<unichar*>(oOOFileList.getArray());
+      memset(pBuffer, 0, lenSeqRequired);
+
+      for (size_t i = 0; i < length; i++)
+      {
+          NSString* fname = [mSystemData objectAtIndex: i];
+          [fname getCharacters: pBuffer];
+          size_t l = [fname length];
+          pBuffer += l + 1;
+      }
+
+      oOOData <<= oOOFileList;
+  }
+  else
+  {
+      oOOData = mData;
+  }
+
+  return oOOData;
+}
+
+DataFlavorMapper::DataFlavorMapper()
+{
+    Reference<XComponentContext> xContext = comphelper::getProcessComponentContext();
+    mrXMimeCntFactory = MimeContentTypeFactory::create( xContext );
+}
+
+DataFlavorMapper::~DataFlavorMapper()
+{
+    // release potential NSStrings
+    for( OfficeOnlyTypes::iterator it = maOfficeOnlyTypes.begin(); it != maOfficeOnlyTypes.end(); ++it )
+    {
+        [it->second release];
+        it->second = nil;
+    }
+}
+
+DataFlavor DataFlavorMapper::systemToOpenOfficeFlavor( const NSString* systemDataFlavor) const
+{
+    DataFlavor oOOFlavor;
+
+    for (size_t i = 0; i < SIZE_FLAVOR_MAP; i++)
+    {
+        if ((flavorMap[i].SystemFlavor == nil && ([systemDataFlavor isEqualToString:[NSString stringWithUTF8String:flavorMap[i].OOoFlavor]]
+                                                  ||
+                                                  [systemDataFlavor hasPrefix:[[NSString stringWithUTF8String:flavorMap[i].OOoFlavor] stringByAppendingString:@";"]]))
+            ||
+            (flavorMap[i].SystemFlavor != nil && [systemDataFlavor isEqualToString:const_cast<NSString*>(flavorMap[i].SystemFlavor)]))
+        {
+          if (flavorMap[i].SystemFlavor == nil)
+              oOOFlavor.MimeType = NSStringToOUString(systemDataFlavor);
+          else
+              oOOFlavor.MimeType = OUString::createFromAscii(flavorMap[i].OOoFlavor);
+          oOOFlavor.HumanPresentableName = OUString::createFromAscii(flavorMap[i].HumanPresentableName);
+          oOOFlavor.DataType = flavorMap[i].DataTypeOUString ? cppu::UnoType<OUString>::get() : cppu::UnoType<Sequence<sal_Int8>>::get();
+          return oOOFlavor;
+        }
+    } // for
+
+    // look if this might be an internal type; if it comes in here it must have
+    // been through openOfficeToSystemFlavor before, so it should then be in the map
+    OUString aTryFlavor( NSStringToOUString( systemDataFlavor ) );
+    if( maOfficeOnlyTypes.find( aTryFlavor ) != maOfficeOnlyTypes.end() )
+    {
+        oOOFlavor.MimeType = aTryFlavor;
+        oOOFlavor.HumanPresentableName.clear();
+        oOOFlavor.DataType = cppu::UnoType<Sequence<sal_Int8>>::get();
+    }
+
+    return oOOFlavor;
+}
+
+const NSString* DataFlavorMapper::openOfficeToSystemFlavor( const DataFlavor& oOOFlavor, bool& rbInternal) const
+{
+    const NSString* sysFlavor = nullptr;
+    rbInternal = false;
+
+    for( size_t i = 0; i < SIZE_FLAVOR_MAP; ++i )
+    {
+        if (oOOFlavor.MimeType.startsWith(OUString::createFromAscii(flavorMap[i].OOoFlavor)))
+        {
+            if (flavorMap[i].SystemFlavor != nil)
+                sysFlavor = flavorMap[i].SystemFlavor;
+            else
+                sysFlavor = OUStringToNSString(oOOFlavor.MimeType);
+        }
+    }
+
+    if(!sysFlavor)
+    {
+        rbInternal = true;
+        OfficeOnlyTypes::const_iterator it = maOfficeOnlyTypes.find( oOOFlavor.MimeType );
+
+        if( it == maOfficeOnlyTypes.end() )
+            sysFlavor = maOfficeOnlyTypes[ oOOFlavor.MimeType ] = OUStringToNSString( oOOFlavor.MimeType );
+        else
+            sysFlavor = it->second;
+    }
+
+    return sysFlavor;
+}
+
+NSString* DataFlavorMapper::openOfficeImageToSystemFlavor(NSPasteboard* pPasteboard)
+{
+    NSArray *supportedTypes = [NSArray arrayWithObjects: NSPasteboardTypeTIFF, nil];
+    NSString *sysFlavor = [pPasteboard availableTypeFromArray:supportedTypes];
+    return sysFlavor;
+}
+
+DataProviderPtr_t DataFlavorMapper::getDataProvider( const NSString* systemFlavor, Reference<XTransferable> const & rTransferable) const
+{
+  DataProviderPtr_t dp;
+
+  try
+    {
+      DataFlavor oOOFlavor = systemToOpenOfficeFlavor(systemFlavor);
+
+      Any data = rTransferable->getTransferData(oOOFlavor);
+
+      if (isByteSequenceType(data.getValueType()))
+      {
+          /*
+             the HTMLFormatDataProvider prepends segment information to HTML
+             this is useful for exchange with MS Word (which brings this stuff from Windows)
+             but annoying for other applications. Since this extension is not a standard datatype
+             on the Mac, let us not provide but provide normal HTML
+
+          if ([systemFlavor caseInsensitiveCompare: NSHTMLPboardType] == NSOrderedSame)
+            {
+              dp = DataProviderPtr_t(new HTMLFormatDataProvider(data));
+            }
+          else
+          */
+          if ([systemFlavor caseInsensitiveCompare: NSPasteboardTypeTIFF] == NSOrderedSame)
+          {
+              dp = DataProviderPtr_t( new PNGDataProvider( data, NSBitmapImageFileTypeTIFF));
+          }
+SAL_WNODEPRECATED_DECLARATIONS_PUSH
+              // "'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create
+              // multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead"
+          else if ([systemFlavor caseInsensitiveCompare: NSFilenamesPboardType] == NSOrderedSame)
+SAL_WNODEPRECATED_DECLARATIONS_POP
+          {
+              dp = DataProviderPtr_t(new FileListDataProvider(data));
+          }
+          else
+          {
+              dp = DataProviderPtr_t(new ByteSequenceDataProvider(data));
+          }
+      }
+      else // Must be OUString type
+      {
+          SAL_WARN_IF(
+              !isOUStringType(data.getValueType()), "vcl",
+              "must be OUString type");
+          dp = DataProviderPtr_t(new UniDataProvider(data));
+      }
+    }
+  catch( const UnsupportedFlavorException& e )
+    {
+     SAL_WARN( "vcl.osx.clipboard", "DataFlavorMapper::getDataProvider(): Exception: " << e.Message );
+      // Somebody violates the contract of the clipboard
+      // interface @see XTransferable
+    }
+
+  return dp;
+}
+
+DataProviderPtr_t DataFlavorMapper::getDataProvider( const NSString* /*systemFlavor*/, NSArray* systemData)
+{
+  return DataProviderPtr_t(new FileListDataProvider(systemData));
+}
+
+DataProviderPtr_t DataFlavorMapper::getDataProvider( const NSString* systemFlavor, NSData* systemData)
+{
+  DataProviderPtr_t dp;
+
+  if ([systemFlavor caseInsensitiveCompare: NSPasteboardTypeString] == NSOrderedSame)
+  {
+      dp = DataProviderPtr_t(new UniDataProvider(systemData));
+  }
+  else if ([systemFlavor caseInsensitiveCompare: NSPasteboardTypeHTML] == NSOrderedSame)
+  {
+      dp = DataProviderPtr_t(new HTMLFormatDataProvider(systemData));
+  }
+  else if ([systemFlavor caseInsensitiveCompare: NSPasteboardTypeTIFF] == NSOrderedSame)
+  {
+      dp = DataProviderPtr_t( new PNGDataProvider(systemData, NSBitmapImageFileTypeTIFF));
+  }
+SAL_WNODEPRECATED_DECLARATIONS_PUSH
+      // "'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create multiple
+      // pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead"
+  else if ([systemFlavor caseInsensitiveCompare: NSFilenamesPboardType] == NSOrderedSame)
+SAL_WNODEPRECATED_DECLARATIONS_POP
+  {
+      //dp = DataProviderPtr_t(new FileListDataProvider(systemData));
+  }
+  else
+  {
+      dp = DataProviderPtr_t(new ByteSequenceDataProvider(systemData));
+  }
+
+  return dp;
+}
+
+bool DataFlavorMapper::isValidMimeContentType(const OUString& contentType) const
+{
+  bool result = true;
+
+  try
+    {
+      Reference<XMimeContentType> xCntType(mrXMimeCntFactory->createMimeContentType(contentType));
+    }
+  catch( const IllegalArgumentException& e )
+    {
+      SAL_WARN("vcl.osx.clipboard", "DataFlavorMapper::isValidMimeContentType(): Exception: " << e.Message);
+      result = false;
+    }
+
+  return result;
+}
+
+NSArray* DataFlavorMapper::flavorSequenceToTypesArray(const css::uno::Sequence<css::datatransfer::DataFlavor>& flavors) const
+{
+  sal_uInt32 nFlavors = flavors.getLength();
+  NSMutableArray* array = [[NSMutableArray alloc] initWithCapacity: 1];
+
+  bool bNeedDummyInternalFlavor(false);
+
+  for (sal_uInt32 i = 0; i < nFlavors; i++)
+  {
+      if( flavors[i].MimeType.startsWith("image/bmp") )
+      {
+          [array addObject: NSPasteboardTypeTIFF];
+      }
+      else
+      {
+          const NSString* str = openOfficeToSystemFlavor(flavors[i], bNeedDummyInternalFlavor);
+
+          if (str != nullptr)
+          {
+              [str retain];
+              [array addObject: str];
+          }
+      }
+  }
+
+   // #i89462# #i90747#
+   // in case no system flavor was found to report
+   // report at least one so D&D between OOo targets works
+  if( [array count] == 0 || bNeedDummyInternalFlavor)
+  {
+      [array addObject: [NSString stringWithUTF8String: FLAVOR_DUMMY_INTERNAL]];
+  }
+
+  return [array autorelease];
+}
+
+css::uno::Sequence<css::datatransfer::DataFlavor> DataFlavorMapper::typesArrayToFlavorSequence(NSArray* types) const
+{
+  int nFormats = [types count];
+  Sequence<DataFlavor> flavors;
+
+  for (int i = 0; i < nFormats; i++)
+  {
+      NSString* sysFormat = [types objectAtIndex: i];
+      DataFlavor oOOFlavor = systemToOpenOfficeFlavor(sysFormat);
+
+      if (isValidFlavor(oOOFlavor))
+      {
+          flavors.realloc(flavors.getLength() + 1);
+          flavors.getArray()[flavors.getLength() - 1] = oOOFlavor;
+      }
+  }
+
+  return flavors;
+}
+
+NSArray* DataFlavorMapper::getAllSupportedPboardTypes()
+{
+  NSMutableArray* array = [[NSMutableArray alloc] initWithCapacity: SIZE_FLAVOR_MAP];
+
+  for (sal_uInt32 i = 0; i < SIZE_FLAVOR_MAP; i++)
+  {
+      if (flavorMap[i].SystemFlavor != nil)
+          [array addObject: flavorMap[i].SystemFlavor];
+      else
+          [array addObject: [NSString stringWithUTF8String: flavorMap[i].OOoFlavor]];
+  }
+
+  return [array autorelease];
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */