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

Example 1 with RoutesChangedEvent

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

the class AbstractRouteRegistryTest method removeChangeListener_noEventsAreFired.

@Test
public void removeChangeListener_noEventsAreFired() {
    List<RoutesChangedEvent> events = new ArrayList<>();
    Registration registration = registry.addRoutesChangeListener(events::add);
    registry.setRoute("home", MyRoute.class, Collections.emptyList());
    Assert.assertEquals("Event should have been fired for listener", 1, events.size());
    registration.remove();
    registry.setRoute("away", MyRoute.class, Collections.emptyList());
    Assert.assertEquals("No new event should have fired", 1, events.size());
}

Example 2 with RoutesChangedEvent

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

the class SessionRouteRegistryTest method removeListener_noEventsAreGottenForAnyRegistry.

@Test
public void removeListener_noEventsAreGottenForAnyRegistry() {
    SessionRouteRegistry sessionRegistry = getRegistry(session);
    List<RoutesChangedEvent> events = new ArrayList<>();
    Registration registration = sessionRegistry.addRoutesChangeListener(events::add);
    registry.setRoute("main", MyRoute.class, Collections.emptyList());
    sessionRegistry.update(() -> {
        sessionRegistry.setRoute("main", Secondary.class, Collections.emptyList());
        sessionRegistry.setRoute("Alias1", Secondary.class, Collections.emptyList());
        sessionRegistry.setRoute("Alias2", Secondary.class, Collections.emptyList());
    });
    Assert.assertEquals("One event for both registries should have been fired.", 2, events.size());
    registration.remove();
    sessionRegistry.removeRoute("main");
    Assert.assertEquals("No new event should have been received for session scope", 2, events.size());
    registry.removeRoute("main");
    Assert.assertEquals("No new event should have been received for application scope", 2, events.size());
}

Example 3 with RoutesChangedEvent

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

the class AbstractRouteRegistry method unlock.

private void unlock() {
    if (configurationLock.getHoldCount() == 1 && editing != null) {
        try {
            ConfiguredRoutes oldConfiguration = configuredRoutes;
            configuredRoutes = new ConfiguredRoutes(editing);
            if (!routesChangedListeners.isEmpty()) {
                List<RouteBaseData<?>> oldRoutes = flattenRoutes(getRegisteredRoutes(oldConfiguration));
                List<RouteBaseData<?>> newRoutes = flattenRoutes(getRegisteredRoutes(configuredRoutes));
                List<RouteBaseData<?>> added = new ArrayList<>();
                List<RouteBaseData<?>> removed = new ArrayList<>();
                oldRoutes.stream().filter(route -> !newRoutes.contains(route)).forEach(removed::add);
                newRoutes.stream().filter(route -> !oldRoutes.contains(route)).forEach(added::add);
                fireEvent(new RoutesChangedEvent(this, added, removed));
            }
        } finally {
            editing = null;
            configurationLock.unlock();
        }
    } else {
        configurationLock.unlock();
    }
}

Example 4 with RoutesChangedEvent

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

the class SessionRouteRegistry method addRoutesChangeListener.

/**
 * Adds the given route change listener to the registry.
 * <p>
 * For the session scoped registry also changes to the application scoped
 * registry will be delegated to the listener if the added or removed route
 * was not masked by a registration in the session scope.
 *
 * @param listener
 *            listener to add
 * @return registration to remove the listener
 */
@Override
public Registration addRoutesChangeListener(RoutesChangedListener listener) {
    final Registration parentRegistration = getParentRegistry().addRoutesChangeListener(event -> {
        ConfiguredRoutes configuration = getConfiguration();
        List<RouteBaseData<?>> addedVisible = event.getAddedRoutes().stream().filter(routeData -> !configuration.hasTemplate(routeData.getTemplate())).collect(Collectors.toList());
        List<RouteBaseData<?>> removedVisible = event.getRemovedRoutes().stream().filter(routeData -> !configuration.hasTemplate(routeData.getTemplate())).collect(Collectors.toList());
        // Only fire an event if we have visible changes.
        if (!(addedVisible.isEmpty() && removedVisible.isEmpty())) {
            fireEvent(new RoutesChangedEvent(event.getSource(), addedVisible, removedVisible));
        }
    });
    final Registration registration = super.addRoutesChangeListener(listener);
    return () -> {
        registration.remove();
        parentRegistration.remove();
    };
}