public boolean isMenuBarPopup(Component c) {
boolean menuBarPopup = false;
if (c instanceof JPopupMenu) {
JPopupMenu pm = (JPopupMenu) c;
if (pm.getInvoker() != null) {
menuBarPopup = (pm.getInvoker().getParent() instanceof JMenuBar);
}
}
return menuBarPopup;
}
/**
* Returns the popup menu which is at the root of the menu system for this popup menu.
*
* @return the topmost grandparent <code>JPopupMenu</code>
*/
JPopupMenu getRootPopupMenu() {
JPopupMenu mp = this;
while ((mp != null)
&& (mp.isPopupMenu() != true)
&& (mp.getInvoker() != null)
&& (mp.getInvoker().getParent() != null)
&& (mp.getInvoker().getParent() instanceof JPopupMenu)) {
mp = (JPopupMenu) mp.getInvoker().getParent();
}
return mp;
}