svtools/source/misc/openfiledroptargetlistener.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 <svtools/openfiledroptargetlistener.hxx>
  21
  22 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  23 #include <com/sun/star/frame/XDispatch.hpp>
  24 #include <com/sun/star/frame/XDispatchProvider.hpp>
  25 #include <com/sun/star/frame/XFrame.hpp>
  26 #include <com/sun/star/beans/PropertyValue.hpp>
  27 #include <com/sun/star/util/URLTransformer.hpp>
  28 #include <com/sun/star/util/XURLTransformer.hpp>
  29
  30 #include <utility>
  31 #include <vcl/transfer.hxx>
  32 #include <sot/filelist.hxx>
  33
  34 #include <osl/file.hxx>
  35 #include <vcl/svapp.hxx>
  36
  37 OpenFileDropTargetListener::OpenFileDropTargetListener( css::uno::Reference< css::uno::XComponentContext > xContext,
  38                                         const css::uno::Reference< css::frame::XFrame >&          xFrame  )
  39         : m_xContext      (std::move( xContext                      ))
  40         , m_xTargetFrame  ( xFrame                        )
  41 {
  42 }
  43
  44
  45 OpenFileDropTargetListener::~OpenFileDropTargetListener()
  46 {
  47     m_xTargetFrame.clear();
  48     m_xContext.clear();
  49 }
  50
  51
  52 void SAL_CALL OpenFileDropTargetListener::disposing( const css::lang::EventObject& )
  53 {
  54     m_xTargetFrame.clear();
  55     m_xContext.clear();
  56 }
  57
  58
  59 void SAL_CALL OpenFileDropTargetListener::drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde )
  60 {
  61     const sal_Int8 nAction = dtde.DropAction;
  62
  63     try
  64     {
  65         if ( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction )
  66         {
  67             TransferableDataHelper aHelper( dtde.Transferable );
  68             bool bFormatFound = false;
  69             FileList aFileList;
  70
  71             // at first check filelist format
  72             if ( aHelper.GetFileList( SotClipboardFormatId::FILE_LIST, aFileList ) )
  73             {
  74                 size_t i, nCount = aFileList.Count();
  75                 for ( i = 0; i < nCount; ++i )
  76                     implts_OpenFile( aFileList.GetFile(i) );
  77                 bFormatFound = true;
  78             }
  79
  80             // then, if necessary, the file format
  81             OUString aFilePath;
  82             if ( !bFormatFound && aHelper.GetString( SotClipboardFormatId::SIMPLE_FILE, aFilePath ) )
  83                 implts_OpenFile( aFilePath );
  84         }
  85         dtde.Context->dropComplete( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction );
  86     }
  87     catch( const css::uno::Exception& )
  88     {
  89     }
  90 }
  91
  92
  93 void SAL_CALL OpenFileDropTargetListener::dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee )
  94 {
  95     try
  96     {
  97         implts_BeginDrag( dtdee.SupportedDataFlavors );
  98     }
  99     catch( const css::uno::Exception& )
 100     {
 101     }
 102
 103     dragOver( dtdee );
 104 }
 105
 106
 107 void SAL_CALL OpenFileDropTargetListener::dragExit( const css::datatransfer::dnd::DropTargetEvent& )
 108 {
 109     try
 110     {
 111         implts_EndDrag();
 112     }
 113     catch( const css::uno::Exception& )
 114     {
 115     }
 116 }
 117
 118
 119 void SAL_CALL OpenFileDropTargetListener::dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde )
 120 {
 121     try
 122     {
 123         bool bAccept = ( implts_IsDropFormatSupported( SotClipboardFormatId::SIMPLE_FILE ) ||
 124                              implts_IsDropFormatSupported( SotClipboardFormatId::FILE_LIST ) );
 125
 126         if ( !bAccept )
 127             dtde.Context->rejectDrag();
 128         else
 129             dtde.Context->acceptDrag( css::datatransfer::dnd::DNDConstants::ACTION_COPY );
 130     }
 131     catch( const css::uno::Exception& )
 132     {
 133     }
 134 }
 135
 136
 137 void SAL_CALL OpenFileDropTargetListener::dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& )
 138 {
 139 }
 140
 141 void OpenFileDropTargetListener::implts_BeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors )
 142 {
 143     /* SAFE { */
 144     SolarMutexGuard aGuard;
 145
 146     m_aFormats.clear();
 147     TransferableDataHelper::FillDataFlavorExVector(rSupportedDataFlavors, m_aFormats);
 148     /* } SAFE */
 149 }
 150
 151 void OpenFileDropTargetListener::implts_EndDrag()
 152 {
 153     /* SAFE { */
 154     SolarMutexGuard aGuard;
 155
 156     m_aFormats.clear();
 157     /* } SAFE */
 158 }
 159
 160 bool OpenFileDropTargetListener::implts_IsDropFormatSupported( SotClipboardFormatId nFormat )
 161 {
 162     /* SAFE { */
 163     SolarMutexGuard aGuard;
 164
 165     for (auto const& format : m_aFormats)
 166     {
 167         if (nFormat == format.mnSotId)
 168         {
 169             return true;
 170         }
 171     }
 172     /* } SAFE */
 173
 174     return false;
 175 }
 176
 177 void OpenFileDropTargetListener::implts_OpenFile( const OUString& rFilePath )
 178 {
 179     OUString aFileURL;
 180     if ( osl::FileBase::getFileURLFromSystemPath( rFilePath, aFileURL ) != osl::FileBase::E_None )
 181         aFileURL = rFilePath;
 182
 183     ::osl::FileStatus aStatus( osl_FileStatus_Mask_FileURL );
 184     ::osl::DirectoryItem aItem;
 185     if( ::osl::FileBase::E_None == ::osl::DirectoryItem::get( aFileURL, aItem ) &&
 186         ::osl::FileBase::E_None == aItem.getFileStatus( aStatus ) )
 187             aFileURL = aStatus.getFileURL();
 188
 189     // open file
 190     /* SAFE { */
 191     SolarMutexGuard aGuard;
 192
 193     css::uno::Reference< css::frame::XFrame >         xTargetFrame( m_xTargetFrame.get(), css::uno::UNO_QUERY );
 194     css::uno::Reference< css::util::XURLTransformer > xParser     ( css::util::URLTransformer::create(m_xContext) );
 195
 196     if (xTargetFrame.is() && xParser.is())
 197     {
 198         css::util::URL aURL;
 199         aURL.Complete = aFileURL;
 200         xParser->parseStrict(aURL);
 201
 202         css::uno::Reference < css::frame::XDispatchProvider > xProvider( xTargetFrame, css::uno::UNO_QUERY );
 203         // Create a new task or recycle an existing one
 204         css::uno::Reference< css::frame::XDispatch > xDispatcher = xProvider->queryDispatch( aURL, u"_default"_ustr, 0 );
 205         if ( xDispatcher.is() )
 206             xDispatcher->dispatch( aURL, css::uno::Sequence < css::beans::PropertyValue >() );
 207     }
 208     /* } SAFE */
 209 }
 210
 211 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */