@Override
protected void init(VaadinRequest vaadinRequest) {
Navigator navigator = new Navigator(this, this);
navigator.setErrorView(errorView);
navigator.addProvider(viewProvider);
setNavigator(navigator);
}
@PostConstruct
public void initialize() {
if (ui.getNavigator() == null) {
Navigator navigator = new Navigator(ui, ui);
navigator.addProvider(viewProvider);
navigator.setErrorView(errorView);
}
}
/** Registers av given view to the navigator and adds it to the NavBar */
private void addView(Class<? extends View> viewClass) {
ViewConfig viewConfig = viewClass.getAnnotation(ViewConfig.class);
switch (viewConfig.createMode()) {
case ALWAYS_NEW:
navigator.addView(viewConfig.uri(), viewClass);
break;
case LAZY_INIT:
navigator.addProvider(new LazyProvider(viewConfig.uri(), viewClass));
break;
case EAGER_INIT:
try {
navigator.addView(viewConfig.uri(), viewClass.newInstance());
} catch (Exception e) {
e.printStackTrace();
}
}
navBar.addView(viewConfig.uri(), viewConfig.displayName());
}
@Override
protected void init(VaadinRequest request) {
setLocale(Locale.ENGLISH);
// Let's register a custom error handler to make the 'access denied' messages a bit friendlier.
setErrorHandler(
new DefaultErrorHandler() {
@Override
public void error(com.vaadin.server.ErrorEvent event) {
if (SecurityExceptionUtils.isAccessDeniedException(event.getThrowable())) {
Notification.show("Sorry, you don't have access to do that.");
} else {
super.error(event);
}
}
});
VerticalLayout layout = new VerticalLayout();
Panel viewContent = new Panel();
MenuBar menu = new MenuBar();
menu.addStyleName("navigation-menu");
layout.addComponents(menu, viewContent);
layout.setSizeFull();
viewContent.setSizeFull();
layout.setExpandRatio(viewContent, 1);
menu.addItem("Trading Area", e -> onDashboardClicked());
menu.addItem("Users", e -> onCustomersClicked());
navigator = new Navigator(this, viewContent);
springViewProvider.setAccessDeniedViewClass(AccessDeniedView.class);
navigator.addProvider(springViewProvider);
navigator.setErrorView(ErrorView.class);
setContent(layout);
String state = navigator.getState();
if (state != null && !state.isEmpty()) {
navigator.navigateTo(state);
} else {
navigator.navigateTo(TradingAreaView.NAME);
}
}