Examples with NavigationTrigger com.vaadin.flow.router.NavigationTrigger used on opensource projects

Example 1 with NavigationTrigger

use of com.vaadin.flow.router.NavigationTrigger in project flow by vaadin.

the class NavigationRpcHandler method handle.

@Override
public Optional<Runnable> handle(UI ui, JsonObject invocationJson) {
    History history = ui.getPage().getHistory();
    HistoryStateChangeHandler historyStateChangeHandler = history.getHistoryStateChangeHandler();
    if (historyStateChangeHandler != null) {
        JsonValue state = invocationJson.get(JsonConstants.RPC_NAVIGATION_STATE);
        String location = invocationJson.getString(JsonConstants.RPC_NAVIGATION_LOCATION);
        boolean triggeredByLink = invocationJson.hasKey(JsonConstants.RPC_NAVIGATION_ROUTERLINK);
        NavigationTrigger trigger = triggeredByLink ? NavigationTrigger.ROUTER_LINK : NavigationTrigger.HISTORY;
        // as it would be dubious and even impossible on the client side.
        if (trigger == NavigationTrigger.ROUTER_LINK && ui.getElement().getNode().isInert()) {
            LoggerFactory.getLogger(NavigationRpcHandler.class.getName()).trace("Ignored router link click for location '{}' because the UI is inert.", location);
            return Optional.empty();
        }
        HistoryStateChangeEvent event = new HistoryStateChangeEvent(history, state, new Location(location), trigger);
        historyStateChangeHandler.onHistoryStateChange(event);
    }
    return Optional.empty();
}

Example 2 with NavigationTrigger

use of com.vaadin.flow.router.NavigationTrigger in project flow by vaadin.

the class ApplicationRunnerServlet method createServletService.

@SuppressWarnings("serial")
@Override
protected VaadinServletService createServletService(DeploymentConfiguration deploymentConfiguration) throws ServiceException {
    // service doesn't use router actually. UI class is responsible to show
    // and update the content by itself with only root route available
    VaadinServletService service = new VaadinServletService(this, deploymentConfiguration) {

        @Override
        public Router getRouter() {
            Router router = new Router(getRouteRegistry()) {

                @Override
                public int navigate(UI ui, Location location, NavigationTrigger trigger, JsonValue state) {
                    ui.getPage().getHistory().pushState(null, location);
                    return HttpServletResponse.SC_OK;
                }
            };
            return router;
        }
    };
    service.init();
    final SystemMessagesProvider provider = service.getSystemMessagesProvider();
    service.setSystemMessagesProvider((SystemMessagesProvider) systemMessagesInfo -> {
        if (systemMessagesInfo.getRequest() == null) {
            return provider.getSystemMessages(systemMessagesInfo);
        }
        Object messages = systemMessagesInfo.getRequest().getAttribute(CUSTOM_SYSTEM_MESSAGES_PROPERTY);
        if (messages instanceof SystemMessages) {
            return (SystemMessages) messages;
        }
        return provider.getSystemMessages(systemMessagesInfo);
    });
    return service;
}