com.vaadin.flow.component.UI#getCurrent

Source File: NotificationHolder.java From vaadin-app-layout with Apache License 2.0

6 votes

/**
 * Needs to be called from UI Thread otherwise there will be issues.
 *
 * @param notifications
 */
public void add(T... notifications) {
    if (UI.getCurrent() == null) {
        throw new IllegalStateException("It seems like NotificationHolder::add wasn't called from the UI Thread. This should be done by using \"UI.getCurrent().access(() -> {})\"");
    }
    Arrays.stream(notifications).forEach(notification -> {
        recentNotification = notification;
        this.notifications.add(notification);
        notifyAddListeners(notification);
        if (notificationComponents.stream().noneMatch(NotificationComponent::isDisplayingNotifications)) {
            com.vaadin.flow.component.notification.Notification notificationView = new com.vaadin.flow.component.notification.Notification(getComponent(notification));
            notificationView.setPosition(com.vaadin.flow.component.notification.Notification.Position.TOP_END);
            notificationView.setDuration(2000);
            notificationView.open();
        }
    });
    notifyListeners();
    updateBadgeCaptions();
}

Source File: EventUtilTest.java From flow with Apache License 2.0

6 votes

@Test
public void collectAfterNavigationObservers() {
    UI ui = UI.getCurrent();

    Element menu = new Element("menu");
    menu.appendChild(new AfterObserver().getElement());

    Element node = ui.getElement();
    node.appendChild(new Element("main"), menu);
    Element nested = new Element("nested");
    nested.appendChild(new Element("nested-child"),
            new Element("nested-child-2"));

    node.appendChild(nested);
    Component.from(nested, AfterObserver.class);

    List<AfterNavigationObserver> beforeNavigationObservers = EventUtil
            .collectAfterNavigationObservers(ui);

    Assert.assertEquals("Wrong amount of listener instances found", 2,
            beforeNavigationObservers.size());
}

Source File: EventUtilTest.java From flow with Apache License 2.0

6 votes

@Test
public void collectBeforeNavigationObserversFromUI_elementHasVirtualChildren()
        throws Exception {
    UI ui = UI.getCurrent();
    Element node = ui.getElement();
    node.appendChild(new Element("main"), new Element("menu"));
    Element nested = new Element("nested");
    nested.appendVirtualChild(new Element("nested-child"),
            new Element("nested-child-2"));

    node.appendChild(nested);

    node.getStateProvider().appendVirtualChild(node.getNode(),
            new Element("attached-by-id"), NodeProperties.INJECT_BY_ID,
            "id");

    Component.from(nested, LeaveObserver.class);

    List<BeforeLeaveObserver> beforeNavigationObservers = EventUtil
            .collectBeforeLeaveObservers(ui);

    Assert.assertEquals("Wrong amount of listener instances found", 1,
            beforeNavigationObservers.size());
}

Source File: EventUtilTest.java From flow with Apache License 2.0

6 votes

@Test
public void collectBeforeNavigationObserversFromUI() throws Exception {
    UI ui = UI.getCurrent();
    Element node = ui.getElement();
    node.appendChild(new Element("main"), new Element("menu"));
    Element nested = new Element("nested");
    nested.appendChild(new Element("nested-child"),
            new Element("nested-child-2"));

    node.appendChild(nested);
    Component.from(nested, LeaveObserver.class);

    List<BeforeLeaveObserver> beforeNavigationObservers = EventUtil
            .collectBeforeLeaveObservers(ui);

    Assert.assertEquals("Wrong amount of listener instances found", 1,
            beforeNavigationObservers.size());
}

Source File: JavaScriptBootstrapHandlerTest.java From flow with Apache License 2.0

6 votes

@Test
public void should_attachViewTo_UiContainer() throws Exception {
    VaadinRequest request = mocks.createRequest(mocks, "/foo/?v-r=init&foo");
    jsInitHandler.handleRequest(session, request, response);

    JavaScriptBootstrapUI ui = (JavaScriptBootstrapUI) UI.getCurrent();
    ui.connectClient("a-tag", "an-id", "a-route");

    TestNodeVisitor visitor = new TestNodeVisitor(true);
    BasicElementStateProvider.get().visit(ui.getElement().getNode(), visitor);

    Assert.assertTrue(hasNodeTag(visitor, "^<body>.*", ElementType.REGULAR));
    Assert.assertTrue(hasNodeTag(visitor, "^<a-tag>.*", ElementType.VIRTUAL_ATTACHED));
    Assert.assertTrue(hasNodeTag(visitor, "^<div>.*", ElementType.REGULAR));
    Assert.assertTrue(
            hasNodeTag(visitor, "^<div>.*Could not navigate to 'a-route'.*",
                    ElementType.REGULAR));

}

Source File: JavaScriptBootstrapHandlerTest.java From flow with Apache License 2.0

6 votes

@Test
public void should_attachViewTo_Body_when_location() throws Exception {

    VaadinRequest request = mocks.createRequest(mocks, "/foo/?v-r=init&location=%2Fbar%3Fpar1%26par2");

    jsInitHandler.handleRequest(session, request, response);

    JavaScriptBootstrapUI ui = (JavaScriptBootstrapUI) UI.getCurrent();

    TestNodeVisitor visitor = new TestNodeVisitor(true);
    BasicElementStateProvider.get().visit(ui.getElement().getNode(), visitor);

    Assert.assertTrue(hasNodeTag(visitor, "^<body>.*", ElementType.REGULAR));
    Assert.assertTrue(hasNodeTag(visitor, "^<div>.*", ElementType.REGULAR));
    Assert.assertTrue(
            hasNodeTag(visitor, "^<div>.*Could not navigate to 'bar'.*",
                    ElementType.REGULAR));

    Mockito.verify(session, Mockito.times(1)).setAttribute(SERVER_ROUTING, Boolean.TRUE);
}

Source File: PolymerTemplateTest.java From flow with Apache License 2.0

6 votes

@Test
public void initModel_requestPopulateModel_onlyUnsetPropertiesAreSent() {
    UI ui = UI.getCurrent();
    InitModelTemplate template = new InitModelTemplate();

    template.getModel().setMessage("foo");

    ui.add(template);

    ui.getInternals().getStateTree().runExecutionsBeforeClientResponse();

    Assert.assertEquals(2, executionOrder.size());
    Assert.assertEquals("this.populateModelProperties($0, $1)",
            executionOrder.get(1));

    Serializable[] params = executionParams.get(1);
    JsonArray properties = (JsonArray) params[1];
    Assert.assertEquals(1, properties.length());
    Assert.assertEquals("title", properties.get(0).asString());
}

Source File: PolymerTemplateTest.java From flow with Apache License 2.0

6 votes

@Test
public void initModel_sendUpdatableProperties() {
    UI ui = UI.getCurrent();
    InitModelTemplate template = new InitModelTemplate();

    ui.add(template);

    ui.getInternals().getStateTree().runExecutionsBeforeClientResponse();

    Assert.assertEquals(2, executionOrder.size());
    Assert.assertEquals("this.registerUpdatableModelProperties($0, $1)",
            executionOrder.get(0));

    Serializable[] params = executionParams.get(0);
    JsonArray properties = (JsonArray) params[1];
    Assert.assertEquals(2, properties.length());

    Set<String> props = new HashSet<>();
    props.add(properties.get(0).asString());
    props.add(properties.get(1).asString());
    // all model properties except 'list' which has no getter
    Assert.assertTrue(props.contains("message"));
    Assert.assertTrue(props.contains("title"));
}

Source File: UIAttributes.java From vaadin-app-layout with Apache License 2.0

5 votes

/**
 * Needs to be called from the UI Thread.
 * @param type
 * @param <T>
 * @return
 */
public static <T extends Serializable> T get(Class<T> type) {
    UIAttributes session = getSession();
    UI ui = UI.getCurrent();
    if (!session.map.containsKey(UI.getCurrent())) {
        session.map.put(ui, new HashMap<>());
    }
    return (T) session.map.get(ui).get(type);
}

Source File: ValueContext.java From flow with Apache License 2.0

5 votes

private Locale findLocale(Component component) {
    if (component != null && component.getUI().isPresent()) {
        return component.getUI().get().getLocale();
    }
    Locale locale = null;
    if (UI.getCurrent() != null) {
        locale = UI.getCurrent().getLocale();
    }
    if (locale == null) {
        locale = Locale.getDefault();
    }
    return locale;
}

Source File: Binder.java From flow with Apache License 2.0

5 votes

/**
 * Finds an appropriate locale to be used in conversion and validation.
 *
 * @return the found locale, not null
 */
protected static Locale findLocale() {
    Locale locale = null;
    if (UI.getCurrent() != null) {
        locale = UI.getCurrent().getLocale();
    }
    if (locale == null) {
        locale = Locale.getDefault();
    }
    return locale;
}

Source File: RouterTest.java From flow with Apache License 2.0

5 votes

@Override
public void beforeEnter(BeforeEnterEvent event) {
    events.add(event);
    UI ui = UI.getCurrent();
    ui.getRouter().navigate(ui, new Location("loop"),
            NavigationTrigger.PROGRAMMATIC);
}

Source File: NotificationHolder.java From vaadin-app-layout with Apache License 2.0

5 votes

public void remove(T notification) {
    if (UI.getCurrent() == null) {
        throw new IllegalStateException("It seems like NotificationHolder::remove wasn't called from the UI Thread. This should be done by using \"UI.getCurrent().access(() -> {})\"");
    }
    notifications.remove(notification);
    notifyListeners();
    notifyRemoveListeners(notification);
    updateBadgeCaptions();
}

Source File: NotificationHolder.java From vaadin-app-layout with Apache License 2.0

5 votes

public void clearNotifications() {
    if (UI.getCurrent() == null) {
        throw new IllegalStateException("It seems like NotificationHolder::clearNotifications wasn't called from the UI Thread. This should be done by using \"UI.getCurrent().access(() -> {})\"");
    }
    notifications.clear();
    notifyListeners();
    updateBadgeCaptions();
}

Source File: UIAttributes.java From vaadin-app-layout with Apache License 2.0

5 votes

/**
 *  Needs to be called from the UI Thread.
 * @param type
 * @param value
 * @param <T>
 */
public static <T extends Serializable> void set(Class<T> type, T value) {
    UIAttributes session = getSession();
    UI ui = UI.getCurrent();
    if (!session.map.containsKey(UI.getCurrent())) {
        session.map.put(ui, new HashMap<>());
    }
    session.map.get(ui).put(type, value);
}

Source File: MenuTemplate.java From radman with MIT License

5 votes

@EventHandler
private void logout() {
    SecurityContextHolder.clearContext();
    UI ui = UI.getCurrent();
    ui.getSession().getSession().invalidate();
    ui.getSession().close();
    ui.getPage().reload();
}

Source File: IndexHtmlRequestHandler.java From flow with Apache License 2.0

4 votes

@Override
public boolean synchronizedHandleRequest(VaadinSession session,
        VaadinRequest request, VaadinResponse response) throws IOException {
    Document indexDocument = getIndexHtmlDocument(request);

    prependBaseHref(request, indexDocument);

    JsonObject initialJson = Json.createObject();

    if (request.getService().getBootstrapInitialPredicate()
            .includeInitialUidl(request)) {
        includeInitialUidl(initialJson, session, request, response);

        indexHtmlResponse = new IndexHtmlResponse(request, response, indexDocument, UI.getCurrent());

        // App might be using classic server-routing, which is true
        // unless we detect a call to JavaScriptBootstrapUI.connectClient
        session.setAttribute(SERVER_ROUTING, Boolean.TRUE);
    } else {
        indexHtmlResponse = new IndexHtmlResponse(request, response, indexDocument);
    }

    addInitialFlow(initialJson, indexDocument, session);

    configureErrorDialogStyles(indexDocument);

    showWebpackErrors(indexDocument);

    response.setContentType(CONTENT_TYPE_TEXT_HTML_UTF_8);

    VaadinContext context = session.getService().getContext();
    AppShellRegistry registry = AppShellRegistry.getInstance(context);

    DeploymentConfiguration config = session.getConfiguration();
    if (!config.isProductionMode()) {
        UsageStatisticsExporter.exportUsageStatisticsToDocument(indexDocument);
    }

    // modify the page based on the @PWA annotation
    setupPwa(indexDocument, session.getService());

    // modify the page based on the @Meta, @ViewPort, @BodySize and @Inline annotations
    // and on the AppShellConfigurator
    registry.modifyIndexHtml(indexDocument, request);

    // modify the page based on registered IndexHtmlRequestListener:s
    request.getService().modifyIndexHtmlResponse(indexHtmlResponse);

    try {
        response.getOutputStream()
                .write(indexDocument.html().getBytes(UTF_8));
    } catch (IOException e) {
        getLogger().error("Error writing 'index.html' to response", e);
        return false;
    }
    return true;
}

Source File: NotificationHolder.java From vaadin-app-layout with Apache License 2.0

4 votes

public void updateBadgeCaptions() {
    if (UI.getCurrent() == null) {
        throw new IllegalStateException("It seems like NotificationHolder::updateBadgeCaptions wasn't called from the UI Thread. This should be done by using \"UI.getCurrent().access(() -> {})\"");
    }
    badgeHolderComponents.forEach(this::updateBadgeCaption);
}

Source File: MakeComponentVisibleWithPushUI.java From flow with Apache License 2.0

3 votes

private void doUpdate() {

        cancelSuggestThread();

        input.setVisible(false);

        UI ui = UI.getCurrent();
        searchThread = new SearchThread(ui);
        searchThread.start();
    }

Java Code Examples for com.vaadin.flow.component.UI#getCurrent()