static void subscribeTo(NavBarPanel panel) {
if (panel.getClientProperty(LISTENER) != null) {
unsubscribeFrom(panel);
}
final NavBarListener listener = new NavBarListener(panel);
final Project project = panel.getProject();
panel.putClientProperty(LISTENER, listener);
KeyboardFocusManager.getCurrentKeyboardFocusManager().addPropertyChangeListener(listener);
FileStatusManager.getInstance(project).addFileStatusListener(listener);
PsiManager.getInstance(project).addPsiTreeChangeListener(listener);
WolfTheProblemSolver.getInstance(project).addProblemListener(listener);
ActionManager.getInstance().addAnActionListener(listener);
final MessageBusConnection connection = project.getMessageBus().connect();
connection.subscribe(ProjectTopics.PROJECT_ROOTS, listener);
connection.subscribe(NavBarModelListener.NAV_BAR, listener);
connection.subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, listener);
panel.putClientProperty(BUS, connection);
panel.addKeyListener(listener);
if (panel.isInFloatingMode()) {
final Window window = SwingUtilities.windowForComponent(panel);
if (window != null) {
window.addWindowFocusListener(listener);
}
}
}
