/** {@inheritDoc} */
@Override
public void onValueChange(final ValueChangeEvent<String> event) {
try {
final PageRequest pageRequest = PageRequest.fromString(event.getValue(), pages);
// A popup page cannot be accessed directly by URL modification (such as <a> elements).
if (isPopupView(pageRequest.getPage())) {
if (Log.isInfoEnabled()) {
Log.info("Popup page '" + pageRequest + "' cannot be accessed directly by URL.");
}
eventBus.navigate(null);
} else {
eventBus.fireEvent(new PageRequestEvent(pageRequest, true));
}
} catch (final PageParsingException e) {
eventBus.navigate(null);
}
}
