Examples of com.vaadin.navigator.Navigator$UriFragmentManager

com.vaadin.navigator.Navigator
A {@link NavigationStateManager} using hashbang fragments in the Pagelocation URI to track views and enable listening to view changes.
A hashbang URI is one where the optional fragment or "hash" part - the part following a # sign - is used to encode navigation state in a web application. The advantage of this is that the fragment can be dynamically manipulated by javascript without causing page reloads.
This class is mostly for internal use by Navigator, and is only public and static to enable testing.

        View view1 = control.createMock(View.class);
        View view2 = control.createMock(View.class);
        ViewChangeTestListener listener = new ViewChangeTestListener();


        // create navigator to test
        Navigator navigator = createNavigator(manager, display);


        // prepare mocks: what to expect
        EasyMock.expect(provider.getViewName("test1")).andReturn("test1");
        EasyMock.expect(provider.getView("test1")).andReturn(view1);
        ViewChangeEvent event1 = new ViewChangeEvent(navigator, null, view1,
                "test1", "");
        listener.addExpectedIsViewChangeAllowed(event1, true);
        EasyMock.expect(manager.getState()).andReturn("");
        view1.enter(eventParametersEqual(""));
        display.showView(view1);
        manager.setState("test1");
        listener.addExpectedNavigatorViewChange(event1);


        EasyMock.expect(provider.getViewName("test2")).andReturn("test2");
        EasyMock.expect(provider.getView("test2")).andReturn(view2);
        ViewChangeEvent event2 = new ViewChangeEvent(navigator, view1, view2,
                "test2", "");
        listener.addExpectedIsViewChangeAllowed(event2, true);
        EasyMock.expect(manager.getState()).andReturn("test1");
        view2.enter(eventParametersEqual(""));
        display.showView(view2);
        manager.setState("test2");
        listener.addExpectedNavigatorViewChange(event2);


        control.replay();


        // test navigator
        navigator.addProvider(provider);
        navigator.addViewChangeListener(listener);


        navigator.navigateTo("test1");
        navigator.navigateTo("test2");


        if (!listener.isReady()) {
            fail("Missing listener calls");
        }
    }

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        EasyMock.replay(tv1, tv2);


        VerticalLayout container = new VerticalLayout();
        ViewDisplay display = new Navigator.ComponentContainerViewDisplay(
                container);
        Navigator navigator = createNavigator(new NullFragmentManager(),
                display);


        navigator.addView("tv1", tv1);
        navigator.addView("tv2", tv2);


        navigator.navigateTo("tv1");


        assertSame(tv1, container.getComponent(0));
        assertEquals(1, container.getComponentCount());


        navigator.navigateTo("tv2");


        assertSame(tv2, container.getComponent(0));
        assertEquals(1, container.getComponentCount());
    }

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        View view1 = control.createMock(View.class);
        View view2 = control.createMock(View.class);
        ViewChangeTestListener listener1 = new ViewChangeTestListener();
        ViewChangeTestListener listener2 = new ViewChangeTestListener();


        Navigator navigator = createNavigator(manager, display);


        // prepare mocks: what to expect
        // first listener blocks first view change
        EasyMock.expect(provider.getViewName("test1")).andReturn("test1");
        EasyMock.expect(provider.getView("test1")).andReturn(view1);
        EasyMock.expect(manager.getState()).andReturn("");
        ViewChangeEvent event1 = new ViewChangeEvent(navigator, null, view1,
                "test1", "");
        listener1.addExpectedIsViewChangeAllowed(event1, false);


        // second listener blocks second view change
        EasyMock.expect(provider.getViewName("test1/test")).andReturn("test1");
        EasyMock.expect(provider.getView("test1")).andReturn(view1);
        EasyMock.expect(manager.getState()).andReturn("");
        ViewChangeEvent event2 = new ViewChangeEvent(navigator, null, view1,
                "test1", "test");
        listener1.addExpectedIsViewChangeAllowed(event2, true);
        listener2.addExpectedIsViewChangeAllowed(event2, false);


        // both listeners allow view change
        EasyMock.expect(provider.getViewName("test1/bar")).andReturn("test1");
        EasyMock.expect(provider.getView("test1")).andReturn(view1);
        EasyMock.expect(manager.getState()).andReturn("");
        ViewChangeEvent event3 = new ViewChangeEvent(navigator, null, view1,
                "test1", "bar");
        listener1.addExpectedIsViewChangeAllowed(event3, true);
        listener2.addExpectedIsViewChangeAllowed(event3, true);
        view1.enter(EasyMock.isA(ViewChangeEvent.class));
        display.showView(view1);
        manager.setState("test1/bar");
        listener1.addExpectedNavigatorViewChange(event3);
        listener2.addExpectedNavigatorViewChange(event3);


        // both listeners allow view change from non-null view
        EasyMock.expect(provider.getViewName("test2")).andReturn("test2");
        EasyMock.expect(provider.getView("test2")).andReturn(view2);
        EasyMock.expect(manager.getState()).andReturn("view1");
        ViewChangeEvent event4 = new ViewChangeEvent(navigator, view1, view2,
                "test2", "");
        listener1.addExpectedIsViewChangeAllowed(event4, true);
        listener2.addExpectedIsViewChangeAllowed(event4, true);
        view2.enter(EasyMock.isA(ViewChangeEvent.class));
        display.showView(view2);
        manager.setState("test2");
        listener1.addExpectedNavigatorViewChange(event4);
        listener2.addExpectedNavigatorViewChange(event4);


        control.replay();


        // test navigator
        navigator.addProvider(provider);
        navigator.addViewChangeListener(listener1);
        navigator.addViewChangeListener(listener2);


        navigator.navigateTo("test1");
        navigator.navigateTo("test1/test");
        navigator.navigateTo("test1/bar");
        navigator.navigateTo("test2");


        if (!listener1.isReady()) {
            fail("Missing listener calls for listener1");
        }
        if (!listener2.isReady()) {

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                "Adding second view class with same name should override previous view",
                TestView.class, navigator.getView("test").getClass());
    }


    public void testAddViewWithNullName() throws Exception {
        Navigator navigator = new TestNavigator();


        try {
            navigator.addView(null, new TestView());
            fail("addView() accepted null view name");
        } catch (IllegalArgumentException e) {
        }
        try {
            navigator.addView(null, TestView.class);
            fail("addView() accepted null view name");
        } catch (IllegalArgumentException e) {
        }
    }

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        } catch (IllegalArgumentException e) {
        }
    }


    public void testAddViewWithNullInstance() throws Exception {
        Navigator navigator = new TestNavigator();


        try {
            navigator.addView("test", (View) null);
            fail("addView() accepted null view instance");
        } catch (IllegalArgumentException e) {
        }
    }

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        } catch (IllegalArgumentException e) {
        }
    }


    public void testAddViewWithNullClass() throws Exception {
        Navigator navigator = new TestNavigator();


        try {
            navigator.addView("test", (Class<View>) null);
            fail("addView() accepted null view class");
        } catch (IllegalArgumentException e) {
        }
    }

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        NavigationStateManager manager = EasyMock
                .createNiceMock(NavigationStateManager.class);
        EasyMock.replay(manager);


        Navigator navigator = new Navigator(createMockUI(), manager, display);
        navigator.addView("view", view);
        navigator.navigateTo("view");
    }

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    String loggedInUser;


    @Override
    public void init(VaadinRequest request) {
        // Create Navigator, make it control the ViewDisplay
        navigator = new Navigator(this, this);


        // Add some Views
        // no fragment for main view
        navigator.addView(MainView__LastNavigatorExample.NAME,
                new MainView__LastNavigatorExample(navigator));

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        try {
            VerticalLayout layout = new VerticalLayout();
            layout.setMargin(true);
            setContent(layout);


            navi = new Navigator(this, naviLayout);


            navi.addView("", new DefaultView());


            navi.addView("list", new ListView());
            navi.addView("edit", new EditView());

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        getPage().init(request);


        // Call the init overridden by the application developer
        init(request);


        Navigator navigator = getNavigator();
        if (navigator != null) {
            // Kickstart navigation if a navigator was attached in init()
            navigator.navigateTo(navigator.getState());
        }
    }

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