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/beans/PropertyValue.hpp>
  26 #include <com/sun/star/util/URLTransformer.hpp>
  27 #include <com/sun/star/util/XURLTransformer.hpp>
  28
  29 #include <svtools/transfer.hxx>
  30 #include <unotools/localfilehelper.hxx>
  31 #include <sot/filelist.hxx>
  32 #include <comphelper/processfactory.hxx>
  33
  34 #include <osl/file.hxx>
  35 #include <vcl/svapp.hxx>
  36
  37 // Create a new task or recycle an existing one
  38 const char SPECIALTARGET_DEFAULT[] = "_default";
  39
  40 OpenFileDropTargetListener::OpenFileDropTargetListener( const css::uno::Reference< css::uno::XComponentContext >& xContext,
  41                                         const css::uno::Reference< css::frame::XFrame >&          xFrame  )
  42         : m_xContext      ( xContext                      )
  43         , m_xTargetFrame  ( xFrame                        )
  44         , m_pFormats      ( new DataFlavorExVector        )
  45 {
  46 }
  47
  48
  49
  50 OpenFileDropTargetListener::~OpenFileDropTargetListener()
  51 {
  52     m_xTargetFrame.clear();
  53     m_xContext.clear();
  54     delete m_pFormats;
  55     m_pFormats = NULL;
  56 }
  57
  58
  59
  60 void SAL_CALL OpenFileDropTargetListener::disposing( const css::lang::EventObject& ) throw( css::uno::RuntimeException, std::exception )
  61 {
  62     m_xTargetFrame.clear();
  63     m_xContext.clear();
  64 }
  65
  66
  67
  68 void SAL_CALL OpenFileDropTargetListener::drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) throw( css::uno::RuntimeException, std::exception )
  69 {
  70     const sal_Int8 nAction = dtde.DropAction;
  71
  72     try
  73     {
  74         if ( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction )
  75         {
  76             TransferableDataHelper aHelper( dtde.Transferable );
  77             bool bFormatFound = false;
  78             FileList aFileList;
  79
  80             // at first check filelist format
  81             if ( aHelper.GetFileList( SotClipboardFormatId::FILE_LIST, aFileList ) )
  82             {
  83                 sal_uLong i, nCount = aFileList.Count();
  84                 for ( i = 0; i < nCount; ++i )
  85                     implts_OpenFile( aFileList.GetFile(i) );
  86                 bFormatFound = true;
  87             }
  88
  89             // then, if necessary, the file format
  90             OUString aFilePath;
  91             if ( !bFormatFound && aHelper.GetString( SotClipboardFormatId::SIMPLE_FILE, aFilePath ) )
  92                 implts_OpenFile( aFilePath );
  93         }
  94         dtde.Context->dropComplete( css::datatransfer::dnd::DNDConstants::ACTION_NONE != nAction );
  95     }
  96     catch( const ::com::sun::star::uno::Exception& )
  97     {
  98     }
  99 }
 100
 101
 102
 103 void SAL_CALL OpenFileDropTargetListener::dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) throw( css::uno::RuntimeException, std::exception )
 104 {
 105     try
 106     {
 107         implts_BeginDrag( dtdee.SupportedDataFlavors );
 108     }
 109     catch( const ::com::sun::star::uno::Exception& )
 110     {
 111     }
 112
 113     dragOver( dtdee );
 114 }
 115
 116
 117
 118 void SAL_CALL OpenFileDropTargetListener::dragExit( const css::datatransfer::dnd::DropTargetEvent& ) throw( css::uno::RuntimeException, std::exception )
 119 {
 120     try
 121     {
 122         implts_EndDrag();
 123     }
 124     catch( const ::com::sun::star::uno::Exception& )
 125     {
 126     }
 127 }
 128
 129
 130
 131 void SAL_CALL OpenFileDropTargetListener::dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) throw( css::uno::RuntimeException, std::exception )
 132 {
 133     try
 134     {
 135         bool bAccept = ( implts_IsDropFormatSupported( SotClipboardFormatId::SIMPLE_FILE ) ||
 136                              implts_IsDropFormatSupported( SotClipboardFormatId::FILE_LIST ) );
 137
 138         if ( !bAccept )
 139             dtde.Context->rejectDrag();
 140         else
 141             dtde.Context->acceptDrag( css::datatransfer::dnd::DNDConstants::ACTION_COPY );
 142     }
 143     catch( const ::com::sun::star::uno::Exception& )
 144     {
 145     }
 146 }
 147
 148
 149
 150 void SAL_CALL OpenFileDropTargetListener::dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& ) throw( css::uno::RuntimeException, std::exception )
 151 {
 152 }
 153
 154 void OpenFileDropTargetListener::implts_BeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors )
 155 {
 156     /* SAFE { */
 157     SolarMutexGuard aGuard;
 158
 159     m_pFormats->clear();
 160     TransferableDataHelper::FillDataFlavorExVector(rSupportedDataFlavors,*m_pFormats);
 161     /* } SAFE */
 162 }
 163
 164 void OpenFileDropTargetListener::implts_EndDrag()
 165 {
 166     /* SAFE { */
 167     SolarMutexGuard aGuard;
 168
 169     m_pFormats->clear();
 170     /* } SAFE */
 171 }
 172
 173 bool OpenFileDropTargetListener::implts_IsDropFormatSupported( SotClipboardFormatId nFormat )
 174 {
 175     /* SAFE { */
 176     SolarMutexGuard aGuard;
 177
 178     DataFlavorExVector::iterator aIter( m_pFormats->begin() ), aEnd( m_pFormats->end() );
 179     bool bRet = false;
 180
 181     while ( aIter != aEnd )
 182     {
 183         if ( nFormat == (*aIter++).mnSotId )
 184         {
 185             bRet = true;
 186             aIter = aEnd;
 187         }
 188     }
 189     /* } SAFE */
 190
 191     return bRet;
 192 }
 193
 194 void OpenFileDropTargetListener::implts_OpenFile( const OUString& rFilePath )
 195 {
 196     OUString aFileURL;
 197     if ( !::utl::LocalFileHelper::ConvertPhysicalNameToURL( rFilePath, aFileURL ) )
 198         aFileURL = rFilePath;
 199
 200     ::osl::FileStatus aStatus( osl_FileStatus_Mask_FileURL );
 201     ::osl::DirectoryItem aItem;
 202     if( ::osl::FileBase::E_None == ::osl::DirectoryItem::get( aFileURL, aItem ) &&
 203         ::osl::FileBase::E_None == aItem.getFileStatus( aStatus ) )
 204             aFileURL = aStatus.getFileURL();
 205
 206     // open file
 207     /* SAFE { */
 208     SolarMutexGuard aGuard;
 209
 210     css::uno::Reference< css::frame::XFrame >         xTargetFrame( m_xTargetFrame.get(), css::uno::UNO_QUERY );
 211     css::uno::Reference< css::util::XURLTransformer > xParser     ( css::util::URLTransformer::create(m_xContext) );
 212
 213     if (xTargetFrame.is() && xParser.is())
 214     {
 215         css::util::URL aURL;
 216         aURL.Complete = aFileURL;
 217         xParser->parseStrict(aURL);
 218
 219         css::uno::Reference < css::frame::XDispatchProvider > xProvider( xTargetFrame, css::uno::UNO_QUERY );
 220         css::uno::Reference< css::frame::XDispatch > xDispatcher = xProvider->queryDispatch( aURL, SPECIALTARGET_DEFAULT, 0 );
 221         if ( xDispatcher.is() )
 222             xDispatcher->dispatch( aURL, css::uno::Sequence < css::beans::PropertyValue >() );
 223     }
 224     /* } SAFE */
 225 }
 226
 227 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */