JPopupMenu won't go away when application is moved

Question

Sorry, I have to reask this question. I am pretty much stuck with this.
I have JPopupMenu that contains a JScrollPane that has a JPanel inside it.
My application's main component is a JFrame, the above JPopupMenu is part of a search panel (JPanel). Every time when I make JPopupMenu visible, then left-click on application's title bar, and move the whole application away, JPopupMenu stays in the original position! If I click on any other place, such as tool bar, or any other component, JPopupMenu will disappear.
This is really strange stuff. My guess is that titile bar cannot detect mouse events? Is that true? Is there any way I can make it disappear once user holds title bar and move the whole application away?
thanks in advance!
Message was edited by:
jack_wns

Answer 1

Finally created some sample code I can use to explain the possible solution I try to figure out. If I run the same application and then right-click on the
application, a popup menu will show up. If I move mouse outside the frame (I try to make JComponent visible so that I can move mouse outside JComponent, but I cannot make it happen), popup menu is still visible. I try to add the following to mouseExited method:
popupMenu.setVisible(false);
But this seemingly will disable pupup menu.
What I try to do is: make popup disappear once user move her mouse outside frame (better yet JComponent). How can I do this?
Here is the sample code I just created:
import java.awt.AWTEvent;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
class PopupTest extends JComponent implements ActionListener, MouseListener {
     private JPanel topPanel;
     private JPopupMenu popupMenu;
     public PopupTest() {
          //setTitle("Popup Menu Application");
          setSize(310, 130);
          setBackground(Color.GREEN);
          topPanel = new JPanel();
          topPanel.setLayout(null);
          add(topPanel);
          JMenuItem menuFileNew = new JMenuItem("New");
          JMenuItem menuFileOpen = new JMenuItem("Open...");
          JMenuItem menuFileSave = new JMenuItem("Save");
          JMenuItem menuFileSaveAs = new JMenuItem("Save As...");
          JMenuItem menuFileExit = new JMenuItem("Exit");
          // Create a popup menu
          popupMenu = new JPopupMenu("Menu");
          popupMenu.add(menuFileNew);
          popupMenu.add(menuFileOpen);
          popupMenu.add(menuFileSave);
          popupMenu.add(menuFileSaveAs);
          popupMenu.add(menuFileExit);
          topPanel.add(popupMenu);
          enableEvents(AWTEvent.MOUSE_EVENT_MASK);
          menuFileNew.addActionListener(this);
          menuFileOpen.addActionListener(this);
          menuFileSave.addActionListener(this);
          menuFileSaveAs.addActionListener(this);
          menuFileExit.addActionListener(this);
          addMouseListener(this);
     public void processMouseEvent(MouseEvent event) {
          if (event.isPopupTrigger()) {
               popupMenu.show(event.getComponent(), event.getX(), event.getY());
          super.processMouseEvent(event);
     public void actionPerformed(ActionEvent event) {
          System.out.println(event);
     public void mouseExited(final MouseEvent e) {
          System.out.println("Mouse Exited...");
          //popupMenu.setVisible(false);  //line added
     public void mouseEntered(final MouseEvent e) {
          System.out.println("Mouse Entered...");
     public void mousePressed(final MouseEvent e) {
          System.out.println("Mouse pressed...");
     public void mouseReleased(final MouseEvent e) {
     public void mouseClicked(final MouseEvent e) {
          System.out.println("Mouse Clicked...");
     public static void main(String args[]) {
          PopupTest mainFrame = new PopupTest();
          mainFrame.setVisible(true);
          JFrame frame = new JFrame();
          frame.setTitle("Popup Menu Application");
          frame.setSize(500, 430);
          frame.getContentPane().add(mainFrame);
          frame.setVisible(true);
}thx