RecentDirectoriesProvider.java :  » Swing-Library » jEdit-4.3.1 » org » gjt » sp » jedit » menu » Java Open Source

/*
 * RecentDirectoriesProvider.java - Recent directory list menu
 * :tabSize=8:indentSize=8:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * Copyright (C) 2000, 2003 Slava Pestov
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.gjt.sp.jedit.menu;

//{{{ Imports
import javax.swing.*;
import java.awt.event.*;
import java.util.Vector;
import java.util.Collections;

import org.gjt.sp.jedit.browser.*;
import org.gjt.sp.jedit.gui.HistoryModel;
import org.gjt.sp.jedit.*;
//}}}

public class RecentDirectoriesProvider implements DynamicMenuProvider
{
  //{{{ updateEveryTime() method
  public boolean updateEveryTime()
  {
    return true;
  } //}}}

  //{{{ update() method
  public void update(JMenu menu)
  {
    final View view = GUIUtilities.getView(menu);

    //{{{ ActionListener...
    ActionListener actionListener = new ActionListener()
    {
      public void actionPerformed(ActionEvent evt)
      {
        VFSBrowser.browseDirectory(view,evt.getActionCommand());

        view.getStatus().setMessage(null);
      }
    }; //}}}

    //{{{ MouseListener...
    MouseListener mouseListener = new MouseAdapter()
    {
      public void mouseEntered(MouseEvent evt)
      {
        view.getStatus().setMessage(
          ((JMenuItem)evt.getSource())
          .getActionCommand());
      }

      public void mouseExited(MouseEvent evt)
      {
        view.getStatus().setMessage(null);
      }
    }; //}}}

    HistoryModel model = HistoryModel.getModel("vfs.browser.path");
    if(model.getSize() == 0)
    {
      JMenuItem menuItem = new JMenuItem(
        jEdit.getProperty("no-recent-dirs.label"));
      menuItem.setEnabled(false);
      menu.add(menuItem);
      return;
    }

    boolean sort = jEdit.getBooleanProperty("sortRecent");

    int maxItems = jEdit.getIntegerProperty("menu.spillover",20);

    Vector<JMenuItem> menuItems = new Vector<JMenuItem>();

    for(int i = 0; i < model.getSize(); i++)
    {
      String path = model.getItem(i);
      JMenuItem menuItem = new JMenuItem(MiscUtilities.getFileName(path));
      menuItem.setActionCommand(path);
      menuItem.addActionListener(actionListener);
      menuItem.addMouseListener(mouseListener);
      menuItem.setIcon(FileCellRenderer.dirIcon);

      if(sort)
        menuItems.addElement(menuItem);
      else
      {
        if(menu.getMenuComponentCount() >= maxItems
          && i != model.getSize() - 1)
        {
          JMenu newMenu = new JMenu(
            jEdit.getProperty("common.more"));
          menu.add(newMenu);
          menu = newMenu;
        }

        menu.add(menuItem);
      }
    }

    if(sort)
    {
      Collections.sort(menuItems,
          new MenuItemTextComparator());
      for(int i = 0; i < menuItems.size(); i++)
      {
        if(menu.getMenuComponentCount() >= maxItems
          && i != 0)
        {
          JMenu newMenu = new JMenu(
            jEdit.getProperty("common.more"));
          menu.add(newMenu);
          menu = newMenu;
        }

        menu.add(menuItems.elementAt(i));
      }
    }
  } //}}}
}