public void propertyChange(final PropertyChangeEvent e) {
if (myAlarm.getActiveRequestCount() == 0) {
myInitialFocusedWindow = (Window) e.getOldValue();
final MenuElement[] selectedPath = MenuSelectionManager.defaultManager().getSelectedPath();
if (selectedPath.length == 0) { // there is no visible popup
return;
}
Component firstComponent = null;
for (final MenuElement menuElement : selectedPath) {
final Component component = menuElement.getComponent();
if (component instanceof JMenuBar) {
firstComponent = component;
break;
} else if (component instanceof JPopupMenu) {
firstComponent = ((JPopupMenu) component).getInvoker();
break;
}
}
if (firstComponent == null) {
return;
}
final Window window = SwingUtilities.getWindowAncestor(firstComponent);
if (window != myInitialFocusedWindow) { // focused window doesn't have popup
return;
}
}
myLastFocusedWindow = (Window) e.getNewValue();
myAlarm.cancelAllRequests();
myAlarm.addRequest(myClearSelectedPathRunnable, 150);
}
private boolean isComponentPartOfCurrentMenu(MenuElement root, Component c) {
MenuElement children[];
int i, d;
if (root == null) return false;
if (root.getComponent() == c) return true;
else {
children = root.getSubElements();
for (i = 0, d = children.length; i < d; i++) {
if (isComponentPartOfCurrentMenu(children[i], c)) return true;
}
}
return false;
}
