001    /*
002     * Copyright (C) 2010 eXo Platform SAS.
003     *
004     * This is free software; you can redistribute it and/or modify it
005     * under the terms of the GNU Lesser General Public License as
006     * published by the Free Software Foundation; either version 2.1 of
007     * the License, or (at your option) any later version.
008     *
009     * This software is distributed in the hope that it will be useful,
010     * but WITHOUT ANY WARRANTY; without even the implied warranty of
011     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012     * Lesser General Public License for more details.
013     *
014     * You should have received a copy of the GNU Lesser General Public
015     * License along with this software; if not, write to the Free
016     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018     */
019    
020    package org.crsh.term.spi.jline;
021    
022    import jline.console.ConsoleReader;
023    import org.crsh.term.CodeType;
024    import org.crsh.term.spi.TermIO;
025    
026    import java.io.IOException;
027    import java.lang.reflect.Field;
028    import java.lang.reflect.Method;
029    
030    /**
031     * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
032     * @version $Revision$
033     */
034    public class JLineIO implements TermIO {
035    
036      /** . */
037      private final ConsoleReader reader;
038    
039      /** . */
040      private final short[] keyBindings;
041    
042      /** . */
043      private StringBuffer buffer = new StringBuffer();
044    
045      public JLineIO() throws Exception {
046        ConsoleReader reader = new ConsoleReader();
047        Method method = ConsoleReader.class.getDeclaredMethod("getKeyForAction", short.class);
048        method.setAccessible(true);
049    
050    
051        Field f = ConsoleReader.class.getDeclaredField("keybindings");
052        f.setAccessible(true);
053        short[] keyBindings = (short[])f.get(reader);
054    
055    
056        //
057        this.reader = reader;
058        this.keyBindings = keyBindings;
059      }
060    
061      public int read() throws IOException {
062        // int i = reader.readVirtualKey();
063        // return i;
064        throw new UnsupportedOperationException();
065      }
066    
067      public int getWidth() {
068        // return reader.getTermwidth();
069        throw new UnsupportedOperationException();
070      }
071    
072      public String getProperty(String name) {
073        return null;
074      }
075    
076      public CodeType decode(int code) {
077    /*
078        short action = keyBindings[code];
079        switch (action) {
080          case ConsoleReader.COMPLETE:
081            return CodeType.TAB;
082          case ConsoleReader.DELETE_PREV_CHAR:
083            return CodeType.BACKSPACE;
084          case ConsoleReader.PREV_CHAR:
085            return CodeType.LEFT;
086          case ConsoleReader.NEXT_CHAR:
087            return CodeType.RIGHT;
088          case ConsoleReader.EXIT:
089            return CodeType.CLOSE;
090          case ConsoleReader.PREV_HISTORY:
091            return CodeType.UP;
092          case ConsoleReader.NEXT_HISTORY:
093            return CodeType.DOWN;
094          default:
095            return CodeType.CHAR;
096        }
097    */
098        throw new UnsupportedOperationException();
099      }
100    
101      public void close() {
102        //
103      }
104    
105      public void flush() throws IOException {
106        System.out.print(buffer);
107        buffer.setLength(0);
108      }
109    
110      public void write(String s) throws IOException {
111        buffer.append(s);
112      }
113    
114      public void write(char c) throws IOException {
115        buffer.append(c);
116      }
117    
118      public void writeDel() throws IOException {
119        buffer.append("\b \b");
120      }
121    
122      public void writeCRLF() throws IOException {
123        buffer.append("\n");
124      }
125    
126      public boolean moveRight(char c) throws IOException {
127        buffer.append(c);
128        return true;
129      }
130    
131      public boolean moveLeft() throws IOException {
132        buffer.append("\b");
133        return true;
134      }
135    }