Code
JMenuItem mi = new JMenuItem(" ");
mi.setLayout(new BorderLayout());
mi.add(new JCheckBox(title) {
private transient MouseAdapter handler;
@Override public void updateUI() {
removeMouseListener(handler);
removeMouseMotionListener(handler);
super.updateUI();
handler = new DispatchParentHandler();
addMouseListener(handler);
addMouseMotionListener(handler);
setFocusable(false);
setOpaque(false);
}
});
popup.add(mi);
popup.add(new JCheckBoxMenuItem("keeping open #2") {
@Override public void updateUI() {
super.updateUI();
setUI(new BasicCheckBoxMenuItemUI() {
@Override protected void doClick(MenuSelectionManager msm) {
//super.doClick(msm);
System.out.println("MenuSelectionManager: doClick");
menuItem.doClick(0);
}
});
}
});
// https://bugs.openjdk.java.net/browse/JDK-8165234
// Provide a way to not close toggle menu items on mouse click on component level
// JDK 9
JMenuItem menuItem = new JMenuItem("JMenuItem");
menuItem.putClientProperty("CheckBoxMenuItem.doNotCloseOnMouseClick", true);
References
