titledtabdelayedmouseexithoveraction.java

修正了jdk1.6中对托盘事件产生异常的bug.

/*
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * 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 (at your option) 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.
 */


// $Id: TitledTabDelayedMouseExitHoverAction.java,v 1.6 2005/12/04 13:46:05 jesper Exp $
package net.infonode.tabbedpanel.hover;

import net.infonode.gui.hover.HoverEvent;
import net.infonode.gui.hover.HoverListener;
import net.infonode.gui.hover.action.DelayedHoverExitAction;
import net.infonode.tabbedpanel.TabbedPanel;
import net.infonode.tabbedpanel.titledtab.TitledTab;
import net.infonode.tabbedpanel.titledtab.TitledTabProperties;

import javax.swing.*;

/**
 * <p>
 * TitledTabDelayedMouseExitHoverAction is an action that wraps a {@link HoverListener} and delays
 * the mouse exit when a {@link TitledTab} is no longer hovered. The action is meant to be set
 * as a {@link HoverListener} in the {@link TitledTabProperties}.
 * </p>
 *
 * <p>
 * If the TitledTab is hovered again before the delay has timed out, the timer is reset. If the
 * TitledTab is removed before the delay has timed out the hover listener's mouseExit() will be
 * called immediately.
 * </p>
 *
 * @author johan
 * @version $Revision: 1.6 $
 * @see TitledTab
 * @see TitledTabProperties
 * @since ITP 1.3.0
 */
public class TitledTabDelayedMouseExitHoverAction implements HoverListener {
  private DelayedHoverExitAction delayedAction;
  private HoverListener hoverListener;

  /**
   * Creates a TitledTabDelayedMouseExitHoverAction object with the given HoverListener as action
   *
   * @param delay         delay in milliseconds before the hover listener is called when the
   *                      titled tab is no longer hovered
   * @param hoverListener reference to a HoverListener
   */
  public TitledTabDelayedMouseExitHoverAction(int delay, HoverListener hoverListener) {
    this.hoverListener = hoverListener;

    delayedAction = new DelayedHoverExitAction(new HoverListener() {
      public void mouseEntered(HoverEvent event) {
        getHoverListener().mouseEntered(event);
      }

      public void mouseExited(HoverEvent event) {
        getHoverListener().mouseExited(event);
      }
    }, delay);
  }

  /**
   * Gets the hover listener
   *
   * @return the hoverListener.
   */
  public HoverListener getHoverListener() {
    return hoverListener;
  }

  /**
   * Gets the TitledTabProperties object for this action.
   *
   * @return reference to the TitledTabProperties or null
   *         if the delayed action is not a TitledTabHoverAction
   */
  public TitledTabProperties getTitledTabProperties() {
    if (getHoverListener() instanceof TitledTabHoverAction)
      return ((TitledTabHoverAction) getHoverListener()).getTitledTabProperties();

    return null;
  }

  public void mouseEntered(HoverEvent event) {
    delayedAction.mouseEntered(event);
  }

  public void mouseExited(HoverEvent event) {
    final TitledTab tab = (TitledTab) event.getSource();
    final TabbedPanel tp = tab.getTabbedPanel();

    delayedAction.mouseExited(event);

    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        if (tab.getTabbedPanel() != tp) {
          delayedAction.forceExit(tab);
        }
      }
    });
  }
}