Examples with PendingJavaScriptResult com.vaadin.flow.component.page.PendingJavaScriptResult used on opensource projects

Example 1 with PendingJavaScriptResult

use of com.vaadin.flow.component.page.PendingJavaScriptResult in project flow by vaadin.

the class NavigationStateRendererTest method handle_RouterLinkTrigger_scrollPositionHandlerAfterServerNavigationIsInvoked.

@Test
public void handle_RouterLinkTrigger_scrollPositionHandlerAfterServerNavigationIsInvoked() {
    // given a service with instantiator
    MockVaadinServletService service = createMockServiceWithInstantiator();
    // given a locked session
    MockVaadinSession session = new AlwaysLockedVaadinSession(service);
    session.setConfiguration(new MockDeploymentConfiguration());
    // given a NavigationStateRenderer mapping to RegularView
    new NavigationStateBuilder(router).withTarget(RegularView.class).build();
    NavigationStateRenderer renderer = new NavigationStateRenderer(navigationStateFromTarget(RegularView.class));
    // given a UI with an instrumented Page that records JS invocations
    AtomicBoolean jsInvoked = new AtomicBoolean(false);
    List<String> jsExpressions = new ArrayList<>();
    MockUI ui = new MockUI(session) {

        final Page page = new Page(this) {

            @Override
            public PendingJavaScriptResult executeJs(String expression, Serializable... params) {
                jsInvoked.set(true);
                jsExpressions.add(expression);
                return super.executeJs(expression, params);
            }
        };

        @Override
        public Page getPage() {
            return page;
        }
    };
    JsonObject state = Json.createObject();
    state.put("href", "view/regular");
    state.put("scrollPositionX", 0.0);
    state.put("scrollPositionY", 0.0);
    renderer.handle(new NavigationEvent(new Router(new TestRouteRegistry()), new Location("preserved"), ui, NavigationTrigger.ROUTER_LINK, state, false));
    // then client-side JS was invoked
    Assert.assertTrue("Expected JS invocation", jsInvoked.get());
    Assert.assertTrue(jsExpressions.stream().anyMatch(expression -> expression.contains("scrollPositionHandlerAfterServerNavigation")));
}

Example 2 with PendingJavaScriptResult

use of com.vaadin.flow.component.page.PendingJavaScriptResult in project flow by vaadin.

the class NavigationStateRendererTest method handle_preserveOnRefreshAndWindowNameNotKnown_clientSideCallTriggered.

@Test
public void handle_preserveOnRefreshAndWindowNameNotKnown_clientSideCallTriggered() {
    // given a service with instantiator
    MockVaadinServletService service = createMockServiceWithInstantiator();
    // given a locked session
    MockVaadinSession session = new AlwaysLockedVaadinSession(service);
    // given a NavigationStateRenderer mapping to PreservedView
    NavigationStateRenderer renderer = new NavigationStateRenderer(navigationStateFromTarget(PreservedView.class));
    // given the session has a cache of something at this location
    AbstractNavigationStateRenderer.setPreservedChain(session, "", new Location("preserved"), new ArrayList<>(Arrays.asList(Mockito.mock(Component.class))));
    // given a UI that contain no window name with an instrumented Page
    // that records JS invocations
    AtomicBoolean jsInvoked = new AtomicBoolean(false);
    MockUI ui = new MockUI(session) {

        final Page page = new Page(this) {

            @Override
            public PendingJavaScriptResult executeJs(String expression, Serializable... params) {
                jsInvoked.set(true);
                return super.executeJs(expression, params);
            }
        };

        @Override
        public Page getPage() {
            return page;
        }
    };
    // when a navigation event reaches the renderer
    renderer.handle(new NavigationEvent(new Router(new TestRouteRegistry()), new Location("preserved"), ui, NavigationTrigger.PAGE_LOAD));
    // then client-side JS was invoked
    Assert.assertTrue("Expected JS invocation", jsInvoked.get());
}

Example 3 with PendingJavaScriptResult

use of com.vaadin.flow.component.page.PendingJavaScriptResult in project flow by vaadin.

the class PageTest method testJavaScriptExecutionTooLateCancel.

@Test
public void testJavaScriptExecutionTooLateCancel() {
    Assert.assertEquals(0, countPendingInvocations());
    PendingJavaScriptResult executeJavaScript = page.executeJs("window.alert('$0');", "foobar");
    Assert.assertEquals(1, countPendingInvocations());
    Assert.assertEquals(1, ui.getInternals().dumpPendingJavaScriptInvocations().size());
    Assert.assertEquals(0, countPendingInvocations());
    Assert.assertFalse(executeJavaScript.cancelExecution());
}

Example 4 with PendingJavaScriptResult

use of com.vaadin.flow.component.page.PendingJavaScriptResult in project flow by vaadin.

the class PageTest method testJavasScriptExecutionCancel.

@Test
public void testJavasScriptExecutionCancel() {
    Assert.assertEquals(0, countPendingInvocations());
    PendingJavaScriptResult executeJavaScript = page.executeJs("window.alert('$0');", "foobar");
    Assert.assertEquals(1, countPendingInvocations());
    Assert.assertTrue(executeJavaScript.cancelExecution());
    Assert.assertEquals(0, countPendingInvocations());
}

Example 5 with PendingJavaScriptResult

use of com.vaadin.flow.component.page.PendingJavaScriptResult in project flow by vaadin.

the class Element method scheduleJavaScriptInvocation.

private PendingJavaScriptResult scheduleJavaScriptInvocation(String expression, Stream<Serializable> parameters) {
    StateNode node = getNode();
    JavaScriptInvocation invocation = new JavaScriptInvocation(expression, parameters.toArray(Serializable[]::new));
    PendingJavaScriptInvocation pending = new PendingJavaScriptInvocation(node, invocation);
    node.runWhenAttached(ui -> ui.getInternals().getStateTree().beforeClientResponse(node, context -> {
        if (!pending.isCanceled()) {
            context.getUI().getInternals().addJavaScriptInvocation(pending);
        }
    }));
    return pending;
}