javax.swing.plaf.metal.MetalFileChooserUI: proposed ActionListener for fileTextField

[Chris Lansdown]

Hi,

The following is a class I've developed to be added as an ActionListener to
the fileTextField component in a MetalFileChooserUI's ui for JFileChooser.
It implements the same (or at least very similar, right now) behavior to
Sun's file text field.

Please note: while I've sent my copyright assignment form in, I haven't
heard back from Jonas yet (understandable; I sent it in on friday).

I'm hoping for comments, suggestions, etc.

The code:


  private class FileTextFieldListener implements ActionListener 
  {
    public void actionPerformed(ActionEvent ev) 
    {
      try {
        JFileChooser fc = getFileChooser();
        int type = fc.getDialogType();
        File f = new File(fileTextField.getText());
        if(!f.isAbsolute()) 
        {
          f = new File(fc.getCurrentDirectory(), fileTextField.getText()) ;
        }
        f = f.getCanonicalFile();
        if(type == JFileChooser.OPEN_DIALOG) 
        {
          if(f.isDirectory() && f.exists()) 
          {
            fc.setCurrentDirectory(f);
            fc.rescanCurrentDirectory();
            fileTextField.setText("");
          } 
          else if(f.isFile() && f.exists()) 
          {
            fc.setCurrentDirectory(f.getParentFile().getCanonicalFile());
            fc.setSelectedFile(f);
            fc.approveSelection();
            closeDialog();
          }
          else
          {
            while(!f.exists())
              f = f.getParentFile().getCanonicalFile();
            fc.setCurrentDirectory(f);
            fc.rescanCurrentDirectory();
            fc.setSelectedFile(null);
            fileTextField.setText("");
          }
        }
        else
        {
          if(f.isDirectory())
          {
            fc.setCurrentDirectory(f);
            fc.rescanCurrentDirectory();
            fileTextField.setText("");
          }
          else
          {
            fc.setCurrentDirectory(f.getParentFile().getCanonicalFile());
            fc.setSelectedFile(f);
            fc.approveSelection();
            closeDialog();
          }
        }
      } 
      catch(IOException ex) 
      {
        fileTextField.setText("");
      }
    }
  }
  
  /**
   * Closes the dialog.
   */
  void closeDialog()
  {
    Window owner = SwingUtilities.windowForComponent(getFileChooser());
    if (owner instanceof JDialog)
      ((JDialog) owner).dispose();
  }



Thanks,
Chris Lansdown

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