Mcj.java

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// -*-Java-*-

package pkgMcj;

import pkgView.*;
import pkgUtil.*;
import pkgView.*;

import java.io.*;

public class Mcj {

   static FileOut logFile; 
   private static final String LOG_FILE_NAME = ".mcj_log";

   private ScreenKit sk;
   private Keyboard keyboard;
   private TextItem hintLine  = new TextItem(" ",75);
   private TextItem bashLine  = new TextItem(" ",75);

   private PanelGrid grid1;
   private PanelGrid grid2;
   private MenuBar menuBar;

   private static final String shellPrefix = "Sh: ";
   private TextItem curLine = new TextItem(" ",70);

   public static void main(String[] args) {
      Mcj m = new Mcj();
      goodbye("goodbye");
   }


   public static void goodbye( String s ) {
      logFile.putString(s);
      logFile.closeFile();
      System.exit(0);
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public Mcj(){
      sk = ScreenKit.getSingleton();
      keyboard = Keyboard.getSingleton();

      logFile = new FileOut();
      logFile.openFile(LOG_FILE_NAME);

      hintLine.setText(" ");
      hintLine.setColors( sk.PAIR_WHITE_BLACK,sk.PAIR_WHITE_BLACK);
      hintLine.setAttribute( sk.SK_NORMAL );

      hintLine.setPosition(sk.PANEL_HINT_ROW, 0);
      hintLine.setSelected(false);

      FunctionBar fbar = new FunctionBar(); // bottom menu functions

      int defaultColor = sk.PAIR_BLACK_CYAN;
      int activeColor = sk.PAIR_WHITE_BLACK;

      fbar.redraw();

      String dirName = getSystemProperty( "user.dir" );

      // ------ start drawing the screen -------------- //
      // grid1 is the left panel
      grid1 = new PanelGrid(this,PANEL_LEFT);

      grid1.setCurrentPath( dirName );
      grid1.redraw(true);

      // grid2 is the rightpanel
      grid2 = new PanelGrid(this,PANEL_RIGHT);
      grid2.setCurrentPath( dirName );
      grid2.redraw(true);

      // construct the top menu bar, add the menubar items
      menuBar = new MenuBar(this);
      menuBar.redraw();

      hintMsg(" setup folders ..." );

      int i,y,x,attr=0;

      bashLine.setText(" ");
      bashLine.setColors( sk.PAIR_WHITE_BLACK,sk.PAIR_WHITE_BLACK);
      bashLine.setAttribute( sk.SK_NORMAL );

      bashLine.setPosition(sk.PANEL_SHELL_ROW, 0);
      bashLine.setSelected(false);
      
      //curLine = new TextItem( shellPrefix, shellPrefix.length());
      curLine.setColors( sk.PAIR_WHITE_BLACK,sk.PAIR_WHITE_BLACK);
      curLine.setAttribute( sk.SK_NORMAL );

      curLine.setPosition(sk.PANEL_SHELL_ROW, 0);
      curLine.setSelected(true);

      sk.ttyRefresh();  // draw the initial screen
      // -------- end of initial screen draw ------------------- //

      
      // since Mcj runs on a single thread, loop forever here
      // distributing key presses.

      boolean bdone = false;
      keyboard.setKey(0);       // initially, no keypress
      while( !bdone ){
         boolean flag, changed;
         int modeNow = currentMode;
         int k;

         k = keyboard.getLastKey();     
         bdone = ( k == keyboard.KEY_F10 );
         if( bdone ){
            break;
         }

         changed = eventChain( k );
         if( changed ){
            grid1.reload_page();
            grid2.reload_page();
         }

         if( modeNow != currentMode || changed ){
            // if a mode change is needed, then all views must
            // reset themselves as indicated by a defined token
            eventChain( keyboard.KEY_NEWMODE );
         }
         hintMsg( getFromFileName() );

         shellMsg();  // the shell line is done last

      }
      
      sk.ttyEndWin();
   }
   

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private void hintMsg( String msg ){
      String hintStr = "Hint: " + msg + "|";
      hintLine.setText(hintStr);
      hintLine.redraw();
   }   

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private void shellMsg(){

      int k = keyboard.inputKey(0);
      if( keyboard.isAlpha(k) || keyboard.isDigit(k) || k==keyboard.KEY_SPACE){
         curLine.putChar( (char)k  );
         k = 0;
      }

      if( keyboard.isLeftArrow(k)  ) { 
         curLine.moveLeft(); 
         k = 0;
      }

      if( keyboard.isRightArrow(k) ) { 
         curLine.moveRight();
         k = 0;
      }

      if( keyboard.isBackSpace(k) ) {
         curLine.moveLeft(); 
         curLine.putChar( (char)keyboard.KEY_SPACE  );
         curLine.moveLeft(); 
         k = 0;
      }

      if( k == keyboard.KEY_CTRL_K ) { 
         curLine.eraseLine();
         k = 0;
      }

      bashLine.setText(shellPrefix + curLine.getText() );
      //bashLine.setText(shellPrefix + Integer.toString(k) );
      bashLine.redraw();
      if( k == 0 ){
         keyboard.setKey(0); // clear the keyboard, if key handled
      }
      sk.ttyRefresh();

   }   

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public void errorMsg( String msg ){
      String bashStr = "Error: " + msg + "| <press any key>";
      bashLine.setText(bashStr);
      bashLine.redraw();
      sk.ttyRefresh();
      keyboard.inputKey(0);
   }   

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private String getFromFilePath() {
      String fromName;
      if( grid1.hasFocus() ){
         fromName = grid1.getDir();
      }
      else{
         fromName = grid2.getDir();
      }
      return fromName;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private String getFromFileName() {
      String fromName;
      if( grid1.hasFocus() ){
         fromName = grid1.getFullPath();
      }
      else{
         fromName = grid2.getFullPath();
      }
      return fromName;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private String getToFileName() {
      String toName;
      if( grid1.hasFocus() ){
         toName = grid2.getFullPath();
      }
      else{
         toName = grid1.getFullPath();
      }
      return toName;
   }


   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   private boolean eventChain( int token ){
      boolean chainFlag = false;
      final boolean changed = true;
      Cmd cmd = new Cmd(this);

      chainFlag = menuBar.checkKey( chainFlag, token );
      chainFlag = grid1.checkKey( chainFlag, token );
      chainFlag = grid2.checkKey( chainFlag, token );

      if( token == keyboard.KEY_F5 ){
         String fromName = getFromFileName();
         String toName =  getToFileName();
         cmd.doCmd( "cp " + fromName + " " + toName);
         return changed;
      }

      if( token == keyboard.KEY_F6 ){
         String fromName = getFromFileName();
         String toName =  getToFileName();
         cmd.doCmd( "mv " + fromName + " " + toName);
         //cmd.doCmd( "rm -f " + fromName );
         return changed;
      }

      if( token == keyboard.KEY_F3 || token == keyboard.KEY_F4 ){
         String fromName = getFromFileName();
         String s = new String("vi " + fromName  );
         logFile.putString(s);
         sk.ttyShellScreen(s);
         return changed;
      }

      if( token == keyboard.KEY_CTRL_O){
         sk.ttyShellScreen("/bin/sh");
         return changed;
      }

      if( token == keyboard.KEY_CTRL_R){
         return changed;
      }

      if( token == keyboard.KEY_F8 ){
         String fromName = getFromFileName();
         cmd.doCmd( "rm -f " + fromName );
         return changed;
      }

      if( token == keyboard.KEY_F7 ){
         //String fromName = getFromFileName();
         //cmd.doCmd( "mkdir -p " + fromName );
         errorMsg("You can't do mkdir");
         return changed;
      }


      return false;             // no change
   }
   

   void testFolder(){
      //System.out.println(">>" + "hello world");
      logFile.putString("Folder test..");

      String dirName = getSystemProperty( "user.dir" );
      if( dirName == null ) dirName = "/";

      Folder aFolder = new Folder( this,dirName );
      //aFolder.setFolderName( dirName );
      logFile.putString( aFolder.getFolderName() );

      if( aFolder.loadNames() == true ){
         logFile.putString( "entries=" + aFolder.getNumEntries() );
         for( int i = 0; i < aFolder.getNumEntries(); i++ ){
            String f1 = aFolder.getNextName(0);
            if( f1 != null ){
               logFile.putString( aFolder.getLength(f1,true));
            }
         }
      }
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public String getSystemProperty( String key ){
      String value = null;
      try{
         value = System.getProperty( key );
      }
      catch( Exception e ) {
         logFile.putString(e.getMessage());
         value = "/";
      }
      return value;
   }

   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public final int STATE_NULL=0;       
   public final int STATE_VIEW1=1;      
   public final int STATE_2PL=2;        
   public final int STATE_2PR=3;        
   public final int STATE_1PL=4;        
   public final int STATE_1PR=5;        
   public final int STATE_HELP=6;       
   public final int STATE_MENU=7;       
   public final int STATE_VIEW=8;       
   public final int STATE_EDIT=9;       
   public final int STATE_COPY=10;      
   public final int STATE_MOVE=11;      
   public final int STATE_MKDIR=12;     
   public final int STATE_DEL=13;       
   public final int STATE_PULDN=14;     
   public final int STATE_EXIT=15;      

   public final int PANEL_LEFT=1;       
   public final int PANEL_RIGHT=2;      
   public final int DROP_LEFT=4;        
   public final int DROP_FILE=5;        
   public final int DROP_OPTION=6;      
   public final int DROP_CMD=7;         
   public final int DROP_RIGHT=8;       
   
   public int currentMode = STATE_2PL; 

   
   //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   public void setState(int stateArg ){
      currentMode = stateArg;
   }

} //class Mcj


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