MousePanel.java :  » Web-Framework » swingweb » org » onemind » swingweb » client » gwt » widget » Java Open Source

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swingweb » org » onemind » swingweb » client » gwt » widget » MousePanel.java
/*
 * Copyright (C) 2004 TiongHiang Lee
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not,  write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Email: thlee@onemindsoft.org
 */

package org.onemind.swingweb.client.gwt.widget;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.*;
public class MousePanel extends SimplePanel implements SourcesMouseEvents
{

    private MouseListenerCollection mouseListeners;

    public MousePanel()
    {
        super();
        sinkEvents(Event.MOUSEEVENTS);
    }

    public void addMouseListener(MouseListener listener)
    {
        if (mouseListeners == null)
        {
            mouseListeners = new MouseListenerCollection();
        }
        mouseListeners.add(listener);
    }

    public void removeMouseListener(MouseListener listener)
    {
        if (mouseListeners != null)
        {
            mouseListeners.remove(listener);
        }
    }

    public void onBrowserEvent(Event event)
    {
        switch (DOM.eventGetType(event))
        {
            case Event.ONMOUSEDOWN :
            case Event.ONMOUSEUP :
            case Event.ONMOUSEMOVE :
            case Event.ONMOUSEOVER :
            case Event.ONMOUSEOUT :
                if (mouseListeners != null)
                {
                    mouseListeners.fireMouseEvent(this, event);
                }
                break;
        }
    }
}
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