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 namespace {
  33
  34 ::std::list< OUString > tokenize( const OUString &rCommand )
  35 {
  36     ::std::list< OUString > aList;
  37     OUStringBuffer aBuffer( 1024 );
  38
  39     const sal_Unicode *pUnicode = rCommand.getStr();
  40     const sal_Unicode *pEnd     = pUnicode + rCommand.getLength();
  41     bool bQuoted            = false;
  42
  43     for ( ; pUnicode != pEnd; ++pUnicode )
  44     {
  45         if ( *pUnicode == '\\' )
  46         {
  47             ++pUnicode;
  48             if ( pUnicode != pEnd )
  49             {
  50                 if ( *pUnicode == 'n' )
  51                     aBuffer.appendAscii( "\n", 1 );
  52                 else
  53                     aBuffer.append( *pUnicode );
  54             }
  55         }
  56         else if ( *pUnicode == '"' )
  57             bQuoted = !bQuoted;
  58         else if ( *pUnicode == ' ' && !bQuoted )
  59             aList.push_back( aBuffer.makeStringAndClear() );
  60         else
  61             aBuffer.append( *pUnicode );
  62     }
  63     aList.push_back( aBuffer.makeStringAndClear() );
  64
  65     return aList;
  66 }
  67
  68 }
  69
  70 // UnxFilePickerCommandThread
  71
  72 UnxFilePickerCommandThread::UnxFilePickerCommandThread( UnxFilePickerNotifyThread *pNotifyThread, int nReadFD )
  73     : m_pNotifyThread( pNotifyThread ),
  74       m_nReadFD( nReadFD )
  75 {
  76 }
  77
  78 UnxFilePickerCommandThread::~UnxFilePickerCommandThread()
  79 {
  80 }
  81
  82 bool SAL_CALL UnxFilePickerCommandThread::result()
  83 {
  84     ::osl::MutexGuard aGuard( m_aMutex );
  85
  86     return m_aResult;
  87 }
  88
  89 OUString SAL_CALL UnxFilePickerCommandThread::getCurrentFilter()
  90 {
  91     ::osl::MutexGuard aGuard( m_aMutex );
  92
  93     return m_aGetCurrentFilter;
  94 }
  95
  96 OUString SAL_CALL UnxFilePickerCommandThread::getDirectory()
  97 {
  98     ::osl::MutexGuard aGuard( m_aMutex );
  99
 100     return m_aGetDirectory;
 101 }
 102
 103 uno::Sequence< OUString > SAL_CALL UnxFilePickerCommandThread::getFiles()
 104 {
 105     ::osl::MutexGuard aGuard( m_aMutex );
 106
 107     sal_Int32 nSize = m_aGetFiles.size();
 108     uno::Sequence< OUString > aFiles( ( nSize > 1 )? nSize + 1: nSize );
 109
 110     if ( nSize == 1 )
 111         aFiles[0] = m_aGetFiles.front();
 112     else if ( nSize > 1 )
 113     {
 114         // First entry in the sequence must be the dirname, the others are the
 115         // filenames, so we have to rearrange the list...
 116
 117         OUString aFront = m_aGetFiles.front();
 118         sal_Int32 nLastSlash = aFront.lastIndexOf( '/' );
 119
 120         aFiles[0] = ( nLastSlash >= 0 )? aFront.copy( 0, nLastSlash ): OUString();
 121         ++nLastSlash;
 122
 123         sal_Int32 nIdx = 1;
 124         for ( ::std::list< OUString >::const_iterator it = m_aGetFiles.begin();
 125                 it != m_aGetFiles.end(); ++it, ++nIdx )
 126         {
 127             sal_Int32 nLength = (*it).getLength() - nLastSlash;
 128             aFiles[nIdx] = ( nLength >= 0 )? (*it).copy( nLastSlash, nLength ): OUString();
 129         }
 130     }
 131
 132     return aFiles;
 133 }
 134
 135 uno::Any SAL_CALL UnxFilePickerCommandThread::getValue()
 136 {
 137     ::osl::MutexGuard aGuard( m_aMutex );
 138
 139     return m_aGetValue;
 140 }
 141
 142 void SAL_CALL UnxFilePickerCommandThread::run()
 143 {
 144     osl_setThreadName("UnxFilePickerCommandThread");
 145
 146     if ( m_nReadFD < 0 )
 147         return;
 148
 149     sal_Int32 nBufferSize = 1024; // 1 is for testing, 1024 for real use
 150     sal_Char *pBuffer = new sal_Char[nBufferSize];
 151     sal_Char *pBufferEnd = pBuffer + nBufferSize;
 152
 153     sal_Char *pWhereToRead = pBuffer;
 154     sal_Char *pEntryBegin = pBuffer;
 155     sal_Int32 nBytesRead = 0;
 156     bool  bShouldExit = false;
 157     while ( !bShouldExit && ( nBytesRead = read( m_nReadFD, pWhereToRead, pBufferEnd - pWhereToRead ) ) > 0 )
 158     {
 159         bool bFoundNL = false;
 160         sal_Char *pWhereToReadEnd = pWhereToRead + nBytesRead;
 161         sal_Char *pEntryEnd = pWhereToRead;
 162         do {
 163             for ( ; pEntryEnd < pWhereToReadEnd && *pEntryEnd != '\n'; ++pEntryEnd )
 164                 ;
 165
 166             if ( pEntryEnd < pWhereToReadEnd )
 167             {
 168                 bFoundNL = true;
 169                 *pEntryEnd = 0;
 170
 171                 if ( strcmp( pEntryBegin, "exited" ) == 0 )
 172                     bShouldExit = true;
 173                 else
 174                     handleCommand( OUString( pEntryBegin, pEntryEnd - pEntryBegin, RTL_TEXTENCODING_UTF8 )/*, bQuit*/ );
 175
 176                 pEntryBegin = pEntryEnd + 1;
 177             }
 178         } while ( pEntryEnd < pWhereToReadEnd );
 179
 180         if ( bFoundNL )
 181         {
 182             if ( pEntryBegin < pBufferEnd )
 183                 memmove( pBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
 184         }
 185         else
 186         {
 187             // enlarge the buffer size
 188             nBufferSize *= 2;
 189             sal_Char *pNewBuffer = new sal_Char[nBufferSize];
 190             if ( pEntryBegin < pBufferEnd )
 191                 memcpy( pNewBuffer, pEntryBegin, pWhereToReadEnd - pEntryBegin );
 192
 193             delete[] pBuffer;
 194             pBuffer = pNewBuffer;
 195             pBufferEnd = pBuffer + nBufferSize;
 196         }
 197
 198         pWhereToRead = pBuffer + ( pWhereToReadEnd - pEntryBegin );
 199         pEntryBegin = pBuffer;
 200     }
 201 }
 202
 203 void SAL_CALL UnxFilePickerCommandThread::handleCommand( const OUString &rCommand )
 204 {
 205     ::osl::MutexGuard aGuard( m_aMutex );
 206
 207 #if OSL_DEBUG_LEVEL > 0
 208     ::std::cerr << "UnxFilePicker received: \"" <<
 209         OUStringToOString( rCommand, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
 210 #endif
 211
 212     ::std::list< OUString > aList = tokenize( rCommand );
 213
 214     if ( aList.empty() )
 215         return;
 216
 217     OUString aCommandName = aList.front();
 218     aList.pop_front();
 219
 220     if ( aCommandName == "accept" )
 221     {
 222         m_aResult = true;
 223         m_aExecCondition.set();
 224     }
 225     else if ( aCommandName == "reject" )
 226     {
 227         m_aResult = false;
 228         m_aExecCondition.set();
 229     }
 230     else if ( aCommandName == "fileSelectionChanged" )
 231     {
 232         if ( m_pNotifyThread )
 233             m_pNotifyThread->fileSelectionChanged();
 234     }
 235     else if ( aCommandName == "files" )
 236     {
 237         m_aGetFiles = aList;
 238         m_aGetFilesCondition.set();
 239     }
 240     else if ( aCommandName == "value" )
 241     {
 242         OUString aType;
 243         if ( !aList.empty() )
 244         {
 245             aType = aList.front();
 246             aList.pop_front();
 247         }
 248
 249         if ( aType == "bool" )
 250         {
 251             bool bValue = !aList.empty() && aList.front().equalsIgnoreAsciiCase("true");
 252
 253             m_aGetValue <<= bValue;
 254             m_aGetValueCondition.set();
 255         }
 256         else if ( aType == "int" )
 257         {
 258             sal_Int32 nValue = 0;
 259             if ( !aList.empty() )
 260                 nValue = aList.front().toInt32();
 261
 262             m_aGetValue <<= nValue;
 263             m_aGetValueCondition.set();
 264         }
 265         else if ( aType == "string" )
 266         {
 267             OUString aValue;
 268             if ( !aList.empty() )
 269                 aValue = aList.front();
 270
 271             m_aGetValue <<= aValue;
 272             m_aGetValueCondition.set();
 273         }
 274         else if ( aType == "stringList" )
 275         {
 276             uno::Sequence< OUString > aSequence( aList.size() );
 277             sal_Int32 nIdx = 0;
 278             for ( ::std::list< OUString >::const_iterator it = aList.begin(); it != aList.end(); ++it, ++nIdx )
 279                 aSequence[nIdx] = (*it);
 280
 281             m_aGetValue <<= aSequence;
 282             m_aGetValueCondition.set();
 283         }
 284         else
 285         {
 286             m_aGetValue = uno::Any();
 287             m_aGetValueCondition.set();
 288         }
 289     }
 290     else if ( aCommandName == "currentFilter" )
 291     {
 292         m_aGetCurrentFilter = aList.empty()? OUString(): aList.front();
 293         m_aGetCurrentFilterCondition.set();
 294     }
 295     else if ( aCommandName == "currentDirectory" )
 296     {
 297         m_aGetDirectory = aList.empty()? OUString(): aList.front();
 298         m_aGetDirectoryCondition.set();
 299     }
 300     else
 301     {
 302 #if OSL_DEBUG_LEVEL > 0
 303         ::std::cerr << "Unrecognized command: "
 304             << OUStringToOString( aCommandName, RTL_TEXTENCODING_ASCII_US ).getStr() << "\"" << ::std::endl;
 305 #endif
 306     }
 307 }
 308
 309 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */