Example usage for com.vaadin.navigator ViewChangeListener ViewChangeListener

Introduction

In this page you can find the example usage for com.vaadin.navigator ViewChangeListener ViewChangeListener.

Prototype

ViewChangeListener

Source Link

Usage

From source file:ch.bfh.ti.soed.hs16.srs.black.SupervisingController.java

License:Open Source License

@Override
protected void init(VaadinRequest vaadinRequest) {
    // Set the title of the site in the browser
    Page.getCurrent().setTitle("SRS - Smart ReservationEntity System");

    dataModel = JPADataAccess.getInstance();
    loginView = new LoginView();
    reservationView = new ReservationView();
    signUpView = new SignUpView();
    navigator = new Navigator(this, this);

    // Adding the login view to the navigator
    navigator.addView(LoginView.NAME, loginView);

    // Setting the error view of the navigator to the login view
    // This way the navigator will always default to the login view
    navigator.setErrorView(loginView);//w  w  w .ja  v a  2s.c o m

    // Adding the reservation view to the navigator
    navigator.addView(ReservationView.NAME, reservationView);

    // Adding the sign up view to the navigator
    navigator.addView(SignUpView.NAME, signUpView);

    // Instantiating the controllers for the two views
    reservationController = new ReservationController(dataModel, reservationView, navigator);
    new LoginController(dataModel, loginView, navigator);
    new SignUpController(dataModel, signUpView, navigator);

    // We use a view change handler to ensure the user is always redirected
    // to the login view if the user is not logged in
    navigator.addViewChangeListener(new ViewChangeListener() {

        @Override
        public boolean beforeViewChange(ViewChangeEvent event) {
            // Check if a user has logged in
            boolean isLoggedIn = VaadinSession.getCurrent().getAttribute("user") != null;

            boolean isLoginView = event.getNewView() instanceof LoginView;
            boolean isSignUpView = event.getNewView() instanceof SignUpView;
            boolean isReservationView = event.getNewView() instanceof ReservationView;

            if (!isLoggedIn && isReservationView) {
                // Always redirect to login view if a user has not yet logged in
                navigator.navigateTo(LoginView.NAME);
                return false;
            } else if (isLoggedIn && (isLoginView || isSignUpView)) {
                // Access attempt to the login or signup view while already logged in gets cancelled
                return false;
            }
            return true;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {
            try {
                reservationController.createList((String) VaadinSession.getCurrent().getAttribute("user"));
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
        }
    });
}

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From source file:com.cavisson.gui.dashboard.components.controls.ValoThemeUI.java

License:Apache License

@Override
protected void init(final VaadinRequest request) {
    if (request.getParameter("test") != null) {
        testMode = true;//from  w  ww .j  a va 2 s .c  om

        if (browserCantRenderFontsConsistently()) {
            getPage().getStyles().add(".v-app.v-app.v-app {font-family: Sans-Serif;}");
        }
    }

    if (getPage().getWebBrowser().isIE() && getPage().getWebBrowser().getBrowserMajorVersion() == 9) {
        menu.setWidth("320px");
    }
    // Show .v-app-loading valo-menu-badge
    // try {
    // Thread.sleep(2000);
    // } catch (InterruptedException e) {
    // e.printStackTrace();
    // }

    if (!testMode) {
        Responsive.makeResponsive(this);
    }

    getPage().setTitle("Valo Theme Test");
    setContent(root);
    root.setWidth("100%");

    root.addMenu(buildMenu());

    navigator = new Navigator(this, viewDisplay);

    navigator.addView("common", CommonParts.class);
    navigator.addView("labels", Labels.class);
    navigator.addView("buttons-and-links", ButtonsAndLinks.class);
    navigator.addView("textfields", TextFields.class);
    navigator.addView("datefields", DateFields.class);
    navigator.addView("comboboxes", ComboBoxes.class);
    navigator.addView("checkboxes", CheckBoxes.class);
    navigator.addView("sliders", Sliders.class);
    navigator.addView("menubars", MenuBars.class);
    navigator.addView("panels", Panels.class);
    navigator.addView("trees", Trees.class);
    navigator.addView("tables", Tables.class);
    navigator.addView("splitpanels", SplitPanels.class);
    navigator.addView("tabs", Tabsheets.class);
    navigator.addView("accordions", Accordions.class);
    navigator.addView("colorpickers", ColorPickers.class);
    navigator.addView("selects", NativeSelects.class);
    navigator.addView("calendar", CalendarTest.class);
    navigator.addView("forms", Forms.class);
    navigator.addView("popupviews", PopupViews.class);
    navigator.addView("dragging", Dragging.class);

    final String f = Page.getCurrent().getUriFragment();
    if (f == null || f.equals("")) {
        navigator.navigateTo("common");
    }

    navigator.setErrorView(CommonParts.class);

    navigator.addViewChangeListener(new ViewChangeListener() {

        @Override
        public boolean beforeViewChange(final ViewChangeEvent event) {
            return true;
        }

        @Override
        public void afterViewChange(final ViewChangeEvent event) {
            for (final Iterator<Component> it = menuItemsLayout.iterator(); it.hasNext();) {
                it.next().removeStyleName("selected");
            }
            for (final Entry<String, String> item : menuItems.entrySet()) {
                if (event.getViewName().equals(item.getKey())) {
                    for (final Iterator<Component> it = menuItemsLayout.iterator(); it.hasNext();) {
                        final Component c = it.next();
                        if (c.getCaption() != null && c.getCaption().startsWith(item.getValue())) {
                            c.addStyleName("selected");
                            break;
                        }
                    }
                    break;
                }
            }
            menu.removeStyleName("valo-menu-visible");
        }
    });

}

---

From source file:com.constellio.app.ui.pages.base.MainLayoutImpl.java

public MainLayoutImpl(AppLayerFactory appLayerFactory) {
    this.presenter = new MainLayoutPresenter(this);

    mainMenuContentFooterLayout = new HorizontalLayout();
    mainMenuContentFooterLayout.setSizeFull();
    mainMenuContentFooterLayout.addStyleName("main-menu-content-footer");

    contentViewWrapper = new Panel();

    Navigator navigator = new Navigator(UI.getCurrent(), contentViewWrapper);
    NavigatorConfigurationService navigatorConfigurationService = appLayerFactory
            .getNavigatorConfigurationService();
    navigatorConfigurationService.configure(navigator);
    UI.getCurrent().setNavigator(navigator);

    contentFooterWrapperLayout = new CssLayout();
    contentFooterWrapperLayout.setId("content-footer-wrapper");

    contentFooterLayout = new VerticalLayout();
    contentFooterLayout.addStyleName("content-footer");

    header = buildHeader();//www.jav  a2 s.c  om
    header.setSizeUndefined();

    mainMenu = buildMainMenu();

    userDocumentsWindow = new UserDocumentsWindow();
    dragAndDropWrapper = new DragAndDropWrapper(mainMenuContentFooterLayout);
    dragAndDropWrapper.setSizeFull();
    dragAndDropWrapper.setDropHandler(userDocumentsWindow);
    navigator.addViewChangeListener(new ViewChangeListener() {
        @Override
        public boolean beforeViewChange(ViewChangeEvent event) {
            return true;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {
            View newView = event.getNewView();
            if (newView instanceof NoDragAndDrop) {
                dragAndDropWrapper.setDropHandler(null);
            } else if (newView instanceof DropHandler) {
                dragAndDropWrapper.setDropHandler((DropHandler) newView);
            } else {
                List<DropHandler> viewDropHandlers = ComponentTreeUtils.getChildren((Component) newView,
                        DropHandler.class);
                if (viewDropHandlers.size() > 1) {
                    dragAndDropWrapper.setDropHandler(null);
                } else if (viewDropHandlers.size() == 1) {
                    dragAndDropWrapper.setDropHandler(viewDropHandlers.get(0));
                } else if (dragAndDropWrapper.getDropHandler() != userDocumentsWindow) {
                    dragAndDropWrapper.setDropHandler(userDocumentsWindow);
                }
            }
            //            SerializationUtils.clone(event.getOldView());
            //            SerializationUtils.clone(newView);
        }
    });

    addComponent(header);
    addComponent(dragAndDropWrapper);
    setExpandRatio(dragAndDropWrapper, 1);

    mainMenuContentFooterLayout.addComponent(mainMenu);
    mainMenuContentFooterLayout.addComponent(contentFooterWrapperLayout);
    mainMenuContentFooterLayout.setExpandRatio(contentFooterWrapperLayout, 1);

    contentFooterWrapperLayout.addComponent(contentFooterLayout);

    contentFooterLayout.addComponent(contentViewWrapper);

    Component message = buildMessage();
    if (message != null) {
        message.addStyleName("message");
        contentFooterLayout.addComponent(message);
    }

    contentFooterLayout.setExpandRatio(contentViewWrapper, 1);

    Component footer = buildFooter();
    if (footer != null) {
        contentFooterLayout.addComponent(footer);
    }

    Component license = buildLicense();
    if (license != null) {
        license.addStyleName("license");
    }

    PagesComponentsExtensionParams params = new PagesComponentsExtensionParams(header, mainMenu,
            contentFooterLayout, this, contentViewWrapper, contentFooterWrapperLayout, presenter.getUser());
    appLayerFactory.getExtensions().getSystemWideExtensions().decorateView(params);
    String collection = ConstellioUI.getCurrentSessionContext().getCurrentCollection();
    if (collection != null) {
        appLayerFactory.getExtensions().forCollection(collection).decorateView(params);
    }

    buildInitJavascript();
}

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From source file:com.github.djabry.platform.vaadin.navigation.NavigationSecurity.java

License:Open Source License

@EventBusListenerMethod(scope = EventScope.UI, filter = StartupFilter.class)
public void registerSecurityListener(Action action) {

    Navigator navigator = UI.getCurrent().getNavigator();
    navigator.addViewChangeListener(new ViewChangeListener() {
        @Override/*from  w w w.  ja  va2  s .co m*/
        public boolean beforeViewChange(ViewChangeEvent event) {
            View newView = event.getNewView();

            if (!isSecuredObject(newView)) {
                //return true;
            }

            try {
                newView.enter(event);
                return true;

            } catch (org.springframework.security.access.AccessDeniedException accessDeniedException) {
                log.warning("Attempted to navigate to page without necessary authorization: "
                        + event.getViewName());
                //throw accessDeniedException;
            }

            return false;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {

        }
    });

    log.info("Registed navigator security listener");

}

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From source file:com.hybridbpm.ui.HybridbpmNavigator.java

License:Apache License

public HybridbpmNavigator(UI ui, final ComponentContainer container) {
    super(ui, container);
    // set error view 
    setErrorView(ErrorView.class);

    addViewChangeListener(new ViewChangeListener() {

        @Override//from w  ww  .j  a v  a2 s  . c o m
        public boolean beforeViewChange(final ViewChangeEvent event) {
            // Since there's no conditions in switching between the views
            // we can always return true.
            if (!HybridbpmUI.isAuthenticated() && event.getViewName() != null
                    && !event.getViewName().isEmpty()) {
                HybridbpmUI.getCurrent().setRedirectView(event.getViewName());
            }
            return true;
        }

        @Override
        public void afterViewChange(final ViewChangeEvent event) {
            HybridbpmUI.getCurrent().mainMenu.setSelection(event.getViewName(), event.getParameters());
            HybridbpmUI.setCurrentView(event.getNewView());
        }
    });
}

---

From source file:com.jee.client.JeeclientUI.java

@Override
protected void init(VaadinRequest request) {
    new Navigator(this, this);
    getNavigator().addView(LoginForm.NAME, LoginForm.class);
    getNavigator().addView(MainView.NAME, MainView.class);
    getNavigator().addViewChangeListener(new ViewChangeListener() {

        @Override// w  w  w . j  a v  a2  s. c o  m
        public boolean beforeViewChange(ViewChangeEvent event) {
            // Check if a user has logged in
            boolean isLoggedIn = VaadinService.getCurrentRequest().getWrappedSession()
                    .getAttribute(USER_NAME_ATTRIBUTE_NAME) != null;// getSession().getAttribute(USER_NAME_ATTRIBUTE_NAME) != null;
            boolean isLoginView = event.getNewView() instanceof LoginForm;

            if (!isLoggedIn && !isLoginView) {
                // Redirect to login view always if a user has not yet
                // logged in
                getNavigator().navigateTo(LoginForm.NAME);
                return false;

            } else if (isLoggedIn && isLoginView) {
                // If someone tries to access to login view while logged in,
                // then cancel
                return false;
            }

            return true;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {

        }
    });

    WrappedSession session = request.getWrappedSession();
    HttpSession httpSession = ((WrappedHttpSession) session).getHttpSession();
    ServletContext servletContext = httpSession.getServletContext();
    applicationContext = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
    messageSource = (ReloadableResourceBundleMessageSource) applicationContext.getBean("resource");
    userAdminManager = (VoucheringManager) applicationContext.getBean("userAdminManager");
    WebUtil.absolutePath = VaadinService.getCurrent().getBaseDirectory().getAbsolutePath();
    this.getLoadingIndicatorConfiguration().setFirstDelay(500);
    this.getLoadingIndicatorConfiguration().setSecondDelay(30000);
    this.getLoadingIndicatorConfiguration().setThirdDelay(80000);
}

---

From source file:com.lst.deploymentautomation.vaadin.core.LspsUI.java

License:Open Source License

private void initNavigation() {
    Navigator navigator = new AppNavigator(getUI(), appLayout);
    navigator.addView(TodoListView.ID, TodoListView.class);
    navigator.addView(DocumentsView.ID, DocumentsView.class);
    navigator.addView(RunModelView.ID, RunModelView.class);
    navigator.addView(SettingsView.ID, SettingsView.class);
    navigator.addView(TodoView.ID, TodoView.class); //expects to-do ID as parameter
    navigator.addView(DocumentView.ID, DocumentView.class); //expects document ID as parameter + optional document parameters aded as ?key=val&key=val
    navigator.addView(FormPreviewView.ID, FormPreviewView.class); //expects model instance ID + '/' + form expression as parameter

    navigator.setErrorProvider(new ViewProvider() {

        private static final long serialVersionUID = 1L;

        @Override/*w ww .  j a  va 2s  .c o m*/
        public String getViewName(String viewAndParameters) {
            return viewAndParameters;
        }

        @Override
        public View getView(String viewName) {
            return new EmptyView();
        }
    });

    navigator.addViewChangeListener(new ViewChangeListener() {

        private static final long serialVersionUID = 1L;

        @Override
        public boolean beforeViewChange(ViewChangeEvent event) {
            return true;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {
            //update navigation menu
            String parameters = event.getParameters();
            boolean hasParameters = parameters != null && !parameters.isEmpty();
            appLayout.viewChanged(event.getViewName() + (hasParameters ? "/" + parameters : ""));

            //update page title
            View view = event.getNewView();
            Page page = event.getNavigator().getUI().getPage();
            String title = (view instanceof AppView) ? ((AppView) view).getTitle() : null;
            page.setTitle(getMessage("application.title") + (title == null ? "" : ": " + title));
        }
    });
}

---

From source file:com.snowy.MyVaadinUI.java

@Override
protected void init(VaadinRequest request) {
    //d = new data(template);
    if (Page.getCurrent().getWebBrowser().isTooOldToFunctionProperly()) {
        Page.getCurrent().setLocation("https://www.google.com/chrome/browser/");
    }/*from  ww  w . j av a 2s.  co m*/
    //VaadinService.getCurrent().
    Page.getCurrent().setTitle("Connect 4");

    d = new data();
    //this.access(()->{

    //n.addView("postLogin", new PostLoginView());
    //Navigator n = this.getNavigator();
    //n.addProvider();
    //});
    /*
    final TextField name = new TextField();
    name.setCaption("Type your name here:");
            
    Button button = new Button("Click Me");
    button.addClickListener( e -> {
    layout.addComponent(new Label("Thanks " + name.getValue() 
            + ", it works!"));
    });
    */
    JavaScript.getCurrent().addFunction("closeMyApplication", new JavaScriptFunction() {
        @Override
        public void call(JsonArray arguments) {
            //Logger.getLogger(MyVaadinUI.class.getName()).info(VaadinSession.getCurrent().getCsrfToken());
            d.logout(VaadinSession.getCurrent().getCsrfToken());
            //new data().setInActive(VaadinSession.getCurrent().getCsrfToken());
            //VaadinSession.getCurrent().close();
        }

    });

    Page.getCurrent().getJavaScript().execute(
            "window.onbeforeunload = function (e) { var e = e || window.event; closeMyApplication(); return; };");
    VaadinService.getCurrent().addSessionDestroyListener(e -> {
        //Logger.getLogger(MyVaadinUI.class.getName()).info(e.getSession().getCsrfToken());
        d.logout(e.getSession().getCsrfToken());

    });

    //Navigator n = new Navigator(this,this);
    //n.addView("Main", new PostLoginView());
    //        this.setNavigator(n);
    //layout.setComponentAlignment(MainL, Alignment.TOP_CENTER);
    this.setPollInterval(1000);
    this.addPollListener((UIEvents.PollEvent e) -> {
        if (e.getUI().getContent().toString().contains("PostLoginView")) {
            PostLoginView plv = (PostLoginView) e.getUI().getContent();
            d.resetActiveIfNot();
            plv.getChatWindow().getUsersList().retrieveActiveUsers();

            plv.getChatWindow().updateChats();
            plv.getGameWindow().updateRequests();
            plv.getGameWindow().updateGames();
            plv.getGameWindow().checkForNewGames();
            //Logger.getLogger(MyVaadinUI.class.getName()).log(Level.INFO,plv.getChatWindow().getUsersList().getValue().toString());
        }

    });
    Navigator navigator = new Navigator(this, this);
    navigator.addProvider(viewProvider);

    navigator.addViewChangeListener(new ViewChangeListener() {
        @Override
        public boolean beforeViewChange(ViewChangeListener.ViewChangeEvent event) {

            if (Page.getCurrent().getLocation().getPath().equals("/")
                    || VaadinSession.getCurrent().getAttribute("token") != null) {

                return true;
            } else {

                //Notification.show(,Notification.Type.ERROR_MESSAGE);
                return false;
            }
        }

        @Override
        public void afterViewChange(ViewChangeListener.ViewChangeEvent event) {

        }

    });

    /*UI.getCurrent().setErrorHandler(new DefaultErrorHandler(){
     @Override
     public void error(com.vaadin.server.ErrorEvent event) {
         UI.getCurrent().setContent(new Label("error"));
     }
                
    });*/
    //VaadinService.createCriticalNotificationJSON("","", "", "");
    //navigator.setErrorView(navigator.getCurrentView());
    //layout.setComponentAlignment(link, Alignment.MIDDLE_CENTER);
    //setContent(new Login());

}

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From source file:de.fatalix.bookery.App.java

License:Open Source License

@Override
protected void init(VaadinRequest request) {
    Navigator navigator = new Navigator(this, appLayout.getMainContent());
    navigator.addProvider(viewProvider);

    CssLayout contentWrapper = new CssLayout();
    contentWrapper.addStyleName("crud-view");

    contentWrapper.setSizeFull();/*from   www .j av a  2 s . c o  m*/
    contentWrapper.addComponents(appLayout, bookMenuLayout, bookDetailLayout);

    setContent(contentWrapper);
    getNavigator().addViewChangeListener(new ViewChangeListener() {

        @Override
        public boolean beforeViewChange(ViewChangeListener.ViewChangeEvent event) {
            if (!isLoggedIn()) {
                appLayout.getAppHeader().setVisible(false);
                if (!event.getViewName().equals(LoginView.id)) {
                    getNavigator().navigateTo(LoginView.id);
                    return false;
                }
                return true;
            } else {
                appLayout.getAppHeader().setVisible(isLoggedIn());
                appLayout.getAppHeader().setLoginName(SecurityUtils.getSubject().getPrincipal().toString());
                if (event.getViewName().equals("")) {
                    getNavigator().navigateTo(HomeView.id);
                    return false;
                }
                return true;
            }
        }

        @Override
        public void afterViewChange(ViewChangeListener.ViewChangeEvent event) {

        }
    });

    if (!isLoggedIn()) {
        appLayout.getAppHeader().setVisible(false);
        getNavigator().navigateTo(LoginView.id);
    } else {
        appLayout.getAppHeader().setVisible(isLoggedIn());
        appLayout.getAppHeader().setLoginName(SecurityUtils.getSubject().getPrincipal().toString());
        if (getNavigator().getState().isEmpty()) {

            getNavigator().navigateTo(HomeView.id);
        }
    }

}

---

From source file:de.metas.procurement.webui.ui.component.MFNavigator.java

License:Open Source License

private MFNavigator(final UI ui) {
    super(ui, ui);

    addViewChangeListener(new ViewChangeListener() {

        @Override//from   w w w. j  a va  2s  .  c o m
        public boolean beforeViewChange(final ViewChangeEvent event) {
            return checkLoggedInAndRedirect(event);
        }

        @Override
        public void afterViewChange(final ViewChangeEvent event) {
            showNextViewNotification();
        }
    });

}

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