[ jEdit-CVS ] plugins/minitools/src/gatchan/jedit/minitools/autosave AutosaveTool.java,NONE,1.1

[Matthieu C. <kp...@us...>]

Update of /cvsroot/jedit/plugins/minitools/src/gatchan/jedit/minitools/autosave
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv13032/plugins/minitools/src/gatchan/jedit/minitools/autosave

Added Files:
	AutosaveTool.java 
Log Message:
fist commit

--- NEW FILE: AutosaveTool.java ---
package gatchan.jedit.minitools.autosave;

import org.gjt.sp.jedit.*;
import org.gjt.sp.jedit.msg.ViewUpdate;
import org.gjt.sp.util.Log;

import java.awt.event.*;
import java.awt.*;

/**
 * The autosave tool.
 *
 * @author Matthieu Casanova
 * @version $Id: AutosaveTool.java,v 1.1 2006/05/28 20:08:54 kpouer Exp $
 */
public class AutosaveTool implements EBComponent
{
  /** The window listener that will save buffers when the Window is deactivated. */
  private final WindowListener listener = new MyWindowListener();

  /** Instantiate the autosave tool. */
  public AutosaveTool()
  {
    View[] views = jEdit.getViews();
    for (int i = 0; i < views.length; i++)
    {
      View view = views[i];
      view.addWindowListener(listener);
    }
    EditBus.addToBus(this);
  }

  /**
   * Unregister the AutosaveTool from EditBus and remove the WindowListeners.
   */
  public void dispose()
  {
    EditBus.removeFromBus(this);
    View[] views = jEdit.getViews();
    for (int i = 0; i < views.length; i++)
    {
      View view = views[i];
      view.removeWindowListener(listener);
    }
  }

  public void handleMessage(EBMessage message)
  {
    if (message instanceof ViewUpdate) {
      ViewUpdate viewUpdate = (ViewUpdate) message;
      if (viewUpdate.getWhat() == ViewUpdate.CREATED)
        viewUpdate.getView().addWindowListener(listener);
      else if (viewUpdate.getWhat() == ViewUpdate.CLOSED)
        viewUpdate.getView().removeWindowListener(listener);
    }
  }

  private class MyWindowListener extends WindowAdapter
  {
    public void windowDeactivated(WindowEvent e)
    {
      Window window = e.getWindow();
      Window oppositeWindow = e.getOppositeWindow();
      if (window instanceof View)
      {
        if (oppositeWindow == null)
        {
          Log.log(Log.DEBUG, this, "jEdit lost the focus, saving buffers");
          saveBuffers((View) window);
        }
      }
      else
      {
        Log.log(Log.ERROR, this, "This is not a View " + window);
      }
    }

    /**
     * Save all jEdit buffers that needs to except the untitled buffers.
     *
     * @param view the view
     */
    private void saveBuffers(View view)
    {
      Buffer[] buffers = jEdit.getBuffers();
      for (int i = 0; i < buffers.length; i++)
      {
        Buffer buffer = buffers[i];
        if (buffer.isDirty() && !buffer.isUntitled() && !buffer.isReadOnly())
          buffer.save(view, null);
      }
    }
  }
}