vcl/osx/OSXTransferable.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <com/sun/star/datatransfer/UnsupportedFlavorException.hpp>
  23 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  24 #include <sal/types.h>
  25 #include <osl/diagnose.h>
  26
  27 #include "OSXTransferable.hxx"
  28
  29 #include "DataFlavorMapping.hxx"
  30
  31 using namespace std;
  32 using namespace osl;
  33 using namespace cppu;
  34 using namespace com::sun::star::uno;
  35 using namespace com::sun::star::datatransfer;
  36 using namespace com::sun::star::lang;
  37
  38 namespace
  39 {
  40     bool isValidFlavor( const DataFlavor& aFlavor )
  41     {
  42       size_t len = aFlavor.MimeType.getLength();
  43       Type dtype = aFlavor.DataType;
  44       return ((len > 0) && ((dtype == cppu::UnoType<Sequence<sal_Int8>>::get()) || (dtype == cppu::UnoType<OUString>::get())));
  45     }
  46
  47 bool cmpAllContentTypeParameter(const Reference<XMimeContentType> & xLhs,
  48                                                const Reference<XMimeContentType> & xRhs)
  49 {
  50   Sequence<OUString> xLhsFlavors = xLhs->getParameters();
  51   Sequence<OUString> xRhsFlavors = xRhs->getParameters();
  52
  53   // Stop here if the number of parameters is different already
  54   if (xLhsFlavors.getLength() != xRhsFlavors.getLength())
  55     return false;
  56
  57   try
  58     {
  59       OUString pLhs;
  60       OUString pRhs;
  61
  62       for (sal_Int32 i = 0; i < xLhsFlavors.getLength(); i++)
  63         {
  64           pLhs = xLhs->getParameterValue(xLhsFlavors[i]);
  65           pRhs = xRhs->getParameterValue(xLhsFlavors[i]);
  66
  67           if (!pLhs.equalsIgnoreAsciiCase(pRhs))
  68             {
  69               return false;
  70             }
  71         }
  72     }
  73   catch(IllegalArgumentException&)
  74     {
  75       return false;
  76     }
  77
  78   return true;
  79 }
  80
  81 } // unnamed namespace
  82
  83 OSXTransferable::OSXTransferable(const Reference<XMimeContentTypeFactory> & rXMimeCntFactory,
  84                                  DataFlavorMapperPtr_t pDataFlavorMapper,
  85                                  NSPasteboard* pasteboard) :
  86   mrXMimeCntFactory(rXMimeCntFactory),
  87   mDataFlavorMapper(pDataFlavorMapper),
  88   mPasteboard(pasteboard)
  89 {
  90   [mPasteboard retain];
  91
  92   initClipboardItemList();
  93 }
  94
  95 OSXTransferable::~OSXTransferable()
  96 {
  97   [mPasteboard release];
  98 }
  99
 100 Any SAL_CALL OSXTransferable::getTransferData( const DataFlavor& aFlavor )
 101 {
 102   if (!isValidFlavor(aFlavor) || !isDataFlavorSupported(aFlavor))
 103     {
 104       throw UnsupportedFlavorException("AquaClipboard: Unsupported data flavor",
 105                                        static_cast<XTransferable*>(this));
 106     }
 107
 108   bool bInternal(false);
 109   NSString const * sysFormat =
 110       (aFlavor.MimeType.startsWith("image/png"))
 111       ? DataFlavorMapper::openOfficeImageToSystemFlavor( mPasteboard )
 112       : mDataFlavorMapper->openOfficeToSystemFlavor(aFlavor, bInternal);
 113   DataProviderPtr_t dp;
 114
 115 SAL_WNODEPRECATED_DECLARATIONS_PUSH
 116       // "'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create multiple
 117       // pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead"
 118   if ([sysFormat caseInsensitiveCompare: NSFilenamesPboardType] == NSOrderedSame)
 119 SAL_WNODEPRECATED_DECLARATIONS_POP
 120     {
 121       NSArray* sysData = [mPasteboard propertyListForType: const_cast<NSString *>(sysFormat)];
 122       dp = DataFlavorMapper::getDataProvider(sysFormat, sysData);
 123     }
 124   else
 125     {
 126       NSData* sysData = [mPasteboard dataForType: const_cast<NSString *>(sysFormat)];
 127       dp = DataFlavorMapper::getDataProvider(sysFormat, sysData);
 128     }
 129
 130   if (dp.get() == nullptr)
 131     {
 132       throw UnsupportedFlavorException("AquaClipboard: Unsupported data flavor",
 133                                        static_cast<XTransferable*>(this));
 134     }
 135
 136   return dp->getOOoData();
 137 }
 138
 139 Sequence< DataFlavor > SAL_CALL OSXTransferable::getTransferDataFlavors(  )
 140 {
 141   return mFlavorList;
 142 }
 143
 144 sal_Bool SAL_CALL OSXTransferable::isDataFlavorSupported(const DataFlavor& aFlavor)
 145 {
 146     for (sal_Int32 i = 0; i < mFlavorList.getLength(); i++)
 147       if (compareDataFlavors(aFlavor, mFlavorList[i]))
 148         return true;
 149
 150     return false;
 151 }
 152
 153 void OSXTransferable::initClipboardItemList()
 154 {
 155   NSArray* pboardFormats = [mPasteboard types];
 156
 157   if (pboardFormats == nullptr)
 158     {
 159       throw RuntimeException("AquaClipboard: Cannot get clipboard data",
 160                              static_cast<XTransferable*>(this));
 161     }
 162
 163   mFlavorList = mDataFlavorMapper->typesArrayToFlavorSequence(pboardFormats);
 164 }
 165
 166 /* Compares two DataFlavors. Returns true if both DataFlavor have the same media type
 167    and the number of parameter and all parameter values do match otherwise false
 168    is returned.
 169  */
 170 bool OSXTransferable::compareDataFlavors(const DataFlavor& lhs, const DataFlavor& rhs )
 171 {
 172     try
 173     {
 174         Reference<XMimeContentType> xLhs(mrXMimeCntFactory->createMimeContentType(lhs.MimeType));
 175         Reference<XMimeContentType> xRhs(mrXMimeCntFactory->createMimeContentType(rhs.MimeType));
 176
 177         if (!xLhs->getFullMediaType().equalsIgnoreAsciiCase(xRhs->getFullMediaType()) ||
 178             !cmpAllContentTypeParameter(xLhs, xRhs))
 179           {
 180             return false;
 181           }
 182     }
 183     catch( IllegalArgumentException& )
 184     {
 185         OSL_FAIL( "Invalid content type detected" );
 186         return false;
 187     }
 188
 189     return true;
 190 }
 191
 192 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */