/** Installs listeners on the application object. */
@Override
protected void installApplicationListeners(Application app) {
super.installApplicationListeners(app);
if (applicationListener == null) {
applicationListener = createApplicationListener();
}
app.addPropertyChangeListener(applicationListener);
}
/** Installs listeners on the application object. */
@Override
protected void uninstallApplicationListeners(Application app) {
super.uninstallApplicationListeners(app);
app.removePropertyChangeListener(applicationListener);
}