popuplistener.java

来自「java 多线程文件下载器源代码......」· Java 代码 · 共 33 行

package com.sam.net.download;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPopupMenu;

class PopupListener extends MouseAdapter
{

	JPopupMenu m_popup;

	public PopupListener(JPopupMenu popup)
	{
	
		m_popup = popup;
	}

	public void mousePressed(MouseEvent e)
	{
		maybeShowPopup(e);
	}

	public void mouseReleased(MouseEvent e)
	{
		maybeShowPopup(e);
	}

	public void maybeShowPopup(MouseEvent e)
	{
		if (e.isPopupTrigger())
			m_popup.show(e.getComponent(), e.getX(), e.getY());
	}
}