vcl/unx/kde/UnxCommandThread.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 <UnxCommandThread.hxx>
  21 #include <UnxNotifyThread.hxx>
  22
  23 #include <rtl/ustring.hxx>
  24 #include <rtl/ustrbuf.hxx>
  25
  26 #include <unistd.h>
  27 #include <string.h>
  28 #include <iostream>
  29
  30 using namespace ::com::sun::star;
  31
  32 // UnxFilePickerCommandThread
  33
  34 UnxFilePickerCommandThread::UnxFilePickerCommandThread( UnxFilePickerNotifyThread *pNotifyThread, int nReadFD )
  35     : m_pNotifyThread( pNotifyThread ),
  36       m_nReadFD( nReadFD )
  37 {
  38 }
  39
  40 UnxFilePickerCommandThread::~UnxFilePickerCommandThread()
  41 {
  42 }
  43
  44 bool SAL_CALL UnxFilePickerCommandThread::result()
  45 {
  46     ::osl::MutexGuard aGuard( m_aMutex );
  47
  48     return m_aResult;
  49 }
  50
  51 OUString SAL_CALL UnxFilePickerCommandThread::getCurrentFilter()
  52 {
  53     ::osl::MutexGuard aGuard( m_aMutex );
  54
  55     return m_aGetCurrentFilter;
  56 }
  57
  58 OUString SAL_CALL UnxFilePickerCommandThread::getDirectory()
  59 {
  60     ::osl::MutexGuard aGuard( m_aMutex );
  61
  62     return m_aGetDirectory;
  63 }
  64
  65 uno::Sequence< OUString > SAL_CALL UnxFilePickerCommandThread::getFiles()
  66 {
  67     ::osl::MutexGuard aGuard( m_aMutex );
  68
  69     sal_Int32 nSize = m_aGetFiles.size();
  70     uno::Sequence< OUString > aFiles( ( nSize > 1 )? nSize + 1: nSize );
  71
  72     if ( nSize == 1 )
  73         aFiles[0] = m_aGetFiles.front();
  74     else if ( nSize > 1 )
  75     {
  76         // First entry in the sequence must be the dirname, the others are the
  77         // filenames, so we have to rearrange the list...
  78
  79         OUString aFront = m_aGetFiles.front();
  80         sal_Int32 nLastSlash = aFront.lastIndexOf( '/' );
  81
  82         aFiles[0] = ( nLastSlash >= 0 )? aFront.copy( 0, nLastSlash ): OUString();
  83         ++nLastSlash;
  84
  85         sal_Int32 nIdx = 1;
  86         for ( ::std::list< OUString >::const_iterator it = m_aGetFiles.begin();
  87                 it != m_aGetFiles.end(); ++it, ++nIdx )
  88         {
  89             sal_Int32 nLength = (*it).getLength() - nLastSlash;
  90             aFiles[nIdx] = ( nLength >= 0 )? (*it).copy( nLastSlash, nLength ): OUString();
  91         }
  92     }
  93
  94     return aFiles;
  95 }
  96
  97 uno::Any SAL_CALL UnxFilePickerCommandThread::getValue()
  98 {
  99     ::osl::MutexGuard aGuard( m_aMutex );
 100
 101     return m_aGetValue;
 102 }
 103
 104 void SAL_CALL UnxFilePickerCommandThread::run()
 105 {
 106     if ( m_nReadFD < 0 )
 107         return;
 108
 109     sal_Int32 nBufferSize = 1024; // 1 is for testing, 1024 for real use
 110     sal_Char *pBuffer = new sal_Char[nBufferSize];
 111     sal_Char *pBufferEnd = pBuffer + nBufferSize;
 112
 113     sal_Char *pWhereToRead = pBuffer;
 114     sal_Char *pEntryBegin = pBuffer;
 115     sal_Int32 nBytesRead = 0;
 116     bool  bShouldExit = false;
 117     while ( !bShouldExit && ( nBytesRead = read( m_nReadFD, pWhereToRead, pBufferEnd - pWhereToRead ) ) > 0 )
 118     {
 119         bool bFoundNL = false;
 120         sal_Char *pWhereToReadEnd = pWhereToRead + nBytesRead;
 121         sal_Char *pEntryEnd = pWhereToRead;
 122         do {
 123             for ( ; pEntryEnd < pWhereToReadEnd && *pEntryEnd != '\n'; ++pEntryEnd )
 124                 ;
 125
 126             if ( pEntryEnd < pWhereToReadEnd )
 127             {
 128                 bFoundNL = true;
 129                 *pEntryEnd = 0;
 130
 131                 if ( strcmp( pEntryBegin, "exited" ) == 0 )
 132                     bShouldExit = true;
 133                 else
 134                     handleCommand( OUString( pEntryBegin, pEntryEnd - pEntryBegin, RTL_TEXTENCODING_UTF8 )/*, bQuit*/ );
 135
 136                 pEntryBegin = pEntryEnd + 1;
 137             }
 138         } while ( pEntryEnd < pWhereToReadEnd );
 139
 140         if ( bFoundNL )
 141         {
 142             if ( pEntryBegin < pBufferEnd )
 143                 memmove( pBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
 144         }
 145         else
 146         {
 147             // enlarge the buffer size
 148             nBufferSize *= 2;
 149             sal_Char *pNewBuffer = new sal_Char[nBufferSize];
 150             if ( pEntryBegin < pBufferEnd )
 151                 memcpy( pNewBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
 152
 153             delete[] pBuffer;
 154             pBuffer = pNewBuffer;
 155             pBufferEnd = pBuffer + nBufferSize;
 156         }
 157
 158         pWhereToRead = pBuffer + ( pWhereToReadEnd - pEntryBegin );
 159         pEntryBegin = pBuffer;
 160     }
 161 }
 162
 163 void SAL_CALL UnxFilePickerCommandThread::handleCommand( const OUString &rCommand )
 164 {
 165     ::osl::MutexGuard aGuard( m_aMutex );
 166
 167 #if OSL_DEBUG_LEVEL > 0
 168     ::std::cerr << "UnxFilePicker received: \"" <<
 169         OUStringToOString( rCommand, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
 170 #endif
 171
 172     ::std::list< OUString > aList = tokenize( rCommand );
 173
 174     if ( aList.empty() )
 175         return;
 176
 177     OUString aCommandName = aList.front();
 178     aList.pop_front();
 179
 180     if ( aCommandName == "accept" )
 181     {
 182         m_aResult = true;
 183         m_aExecCondition.set();
 184     }
 185     else if ( aCommandName == "reject" )
 186     {
 187         m_aResult = false;
 188         m_aExecCondition.set();
 189     }
 190     else if ( aCommandName == "fileSelectionChanged" )
 191     {
 192         if ( m_pNotifyThread )
 193             m_pNotifyThread->fileSelectionChanged();
 194     }
 195     else if ( aCommandName == "files" )
 196     {
 197         m_aGetFiles = aList;
 198         m_aGetFilesCondition.set();
 199     }
 200     else if ( aCommandName == "value" )
 201     {
 202         OUString aType;
 203         if ( !aList.empty() )
 204         {
 205             aType = aList.front();
 206             aList.pop_front();
 207         }
 208
 209         if ( aType == "bool" )
 210         {
 211             bool bValue = !aList.empty() && aList.front().equalsIgnoreAsciiCase("true");
 212
 213             m_aGetValue <<= bValue;
 214             m_aGetValueCondition.set();
 215         }
 216         else if ( aType == "int" )
 217         {
 218             sal_Int32 nValue = 0;
 219             if ( !aList.empty() )
 220                 nValue = aList.front().toInt32();
 221
 222             m_aGetValue <<= nValue;
 223             m_aGetValueCondition.set();
 224         }
 225         else if ( aType == "string" )
 226         {
 227             OUString aValue;
 228             if ( !aList.empty() )
 229                 aValue = aList.front();
 230
 231             m_aGetValue <<= aValue;
 232             m_aGetValueCondition.set();
 233         }
 234         else if ( aType == "stringList" )
 235         {
 236             uno::Sequence< OUString > aSequence( aList.size() );
 237             sal_Int32 nIdx = 0;
 238             for ( ::std::list< OUString >::const_iterator it = aList.begin(); it != aList.end(); ++it, ++nIdx )
 239                 aSequence[nIdx] = (*it);
 240
 241             m_aGetValue <<= aSequence;
 242             m_aGetValueCondition.set();
 243         }
 244         else
 245         {
 246             m_aGetValue = uno::Any();
 247             m_aGetValueCondition.set();
 248         }
 249     }
 250     else if ( aCommandName == "currentFilter" )
 251     {
 252         m_aGetCurrentFilter = aList.empty()? OUString(): aList.front();
 253         m_aGetCurrentFilterCondition.set();
 254     }
 255     else if ( aCommandName == "currentDirectory" )
 256     {
 257         m_aGetDirectory = aList.empty()? OUString(): aList.front();
 258         m_aGetDirectoryCondition.set();
 259     }
 260     else
 261     {
 262 #if OSL_DEBUG_LEVEL > 0
 263         ::std::cerr << "Unrecognized command: "
 264             << OUStringToOString( aCommandName, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
 265 #endif
 266     }
 267 }
 268
 269 ::std::list< OUString > SAL_CALL UnxFilePickerCommandThread::tokenize( const OUString &rCommand )
 270 {
 271     ::std::list< OUString > aList;
 272     OUStringBuffer aBuffer( 1024 );
 273
 274     const sal_Unicode *pUnicode = rCommand.getStr();
 275     const sal_Unicode *pEnd     = pUnicode + rCommand.getLength();
 276     bool bQuoted            = false;
 277
 278     for ( ; pUnicode != pEnd; ++pUnicode )
 279     {
 280         if ( *pUnicode == '\\' )
 281         {
 282             ++pUnicode;
 283             if ( pUnicode != pEnd )
 284             {
 285                 if ( *pUnicode == 'n' )
 286                     aBuffer.appendAscii( "\n", 1 );
 287                 else
 288                     aBuffer.append( *pUnicode );
 289             }
 290         }
 291         else if ( *pUnicode == '"' )
 292             bQuoted = !bQuoted;
 293         else if ( *pUnicode == ' ' && !bQuoted )
 294             aList.push_back( aBuffer.makeStringAndClear() );
 295         else
 296             aBuffer.append( *pUnicode );
 297     }
 298     aList.push_back( aBuffer.makeStringAndClear() );
 299
 300     return aList;
 301 }
 302
 303 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */