Examples with DomEvent com.vaadin.flow.dom.DomEvent used on opensource projects

Example 6 with DomEvent

use of com.vaadin.flow.dom.DomEvent in project flow by vaadin.

the class ElementListenersTest method eventDataInEvent.

@Test
public void eventDataInEvent() {
    AtomicReference<JsonObject> eventDataReference = new AtomicReference<>();
    ns.add("foo", e -> {
        Assert.assertNull(eventDataReference.get());
        eventDataReference.set(e.getEventData());
    });
    Assert.assertNull(eventDataReference.get());
    JsonObject eventData = Json.createObject();
    eventData.put("baz", true);
    ns.fireEvent(new DomEvent(new Element("element"), "foo", eventData));
    JsonObject capturedJson = eventDataReference.get();
    Assert.assertNotNull(capturedJson);
    Assert.assertEquals(1, capturedJson.keys().length);
    Assert.assertEquals("true", capturedJson.get("baz").toJson());
}

Example 7 with DomEvent

use of com.vaadin.flow.dom.DomEvent in project flow by vaadin.

the class ElementListenersTest method addAndRemoveEventData.

@Test
public void addAndRemoveEventData() {
    ns.add("eventType", noOp).addEventData("data1").addEventData("data2");
    Set<String> expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
    Assert.assertFalse(expressions.contains("data3"));
    Registration handle = ns.add("eventType", new DomEventListener() {

        /*
             * Can't use the existing noOp instance since there would then not
             * be any listeners left after calling remove()
             */
        @Override
        public void handleEvent(DomEvent event) {
        // no op
        }
    }).addEventData("data3");
    expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
    Assert.assertTrue(expressions.contains("data3"));
    handle.remove();
    expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
    // due to fix to #5090, data3 won't be present after removal
    Assert.assertFalse(expressions.contains("data3"));
}

Example 8 with DomEvent

use of com.vaadin.flow.dom.DomEvent in project flow by vaadin.

the class ElementListenersTest method testAddAndRemoveEventData.

@Test
public void testAddAndRemoveEventData() {
    ns.add("eventType", noOp, new String[] { "data1", "data2" });
    Set<String> expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
    Assert.assertFalse(expressions.contains("data3"));
    Registration handle = ns.add("eventType", new DomEventListener() {

        /*
                     * Can't use the existing noOp instance since there would
                     * then not be any listeners left after calling remove()
                     */
        @Override
        public void handleEvent(DomEvent event) {
        // no op
        }
    }, new String[] { "data3" });
    expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
    Assert.assertTrue(expressions.contains("data3"));
    handle.remove();
    expressions = getExpressions("eventType");
    Assert.assertTrue(expressions.contains("data1"));
    Assert.assertTrue(expressions.contains("data2"));
// data3 might still be there, but we don't care
}

Example 9 with DomEvent

use of com.vaadin.flow.dom.DomEvent in project flow by vaadin.

the class DebounceSynchronizePropertyView method createModeToggle.

private Component createModeToggle(String caption, String id, Consumer<DomListenerRegistration> configurator) {
    Element checkbox = new Element("input");
    checkbox.setAttribute("type", "checkbox");
    checkbox.setAttribute("id", id);
    checkbox.addEventListener("change", new DomEventListener() {

        private DomListenerRegistration registration = null;

        @Override
        public void handleEvent(DomEvent event) {
            if (event.getEventData().getBoolean("element.checked")) {
                assert registration == null;
                registration = inputElement.addPropertyChangeListener("value", "input", propertyChange -> addChangeMessage(propertyChange.getValue()));
                configurator.accept(registration);
            } else {
                registration.remove();
                registration = null;
            }
        }
    }).addEventData("element.checked");
    Label label = new Label(caption);
    label.getElement().insertChild(0, checkbox);
    label.getElement().getStyle().set("display", "block");
    return label;
}

Example 10 with DomEvent

use of com.vaadin.flow.dom.DomEvent in project flow by vaadin.

the class ElementListenersTest method mapEventTargetToElement_targetNodeIdInJsonData_elementMapped.

@Test
public void mapEventTargetToElement_targetNodeIdInJsonData_elementMapped() {
    Element parent = new Element("parent");
    Element child = new Element("child");
    Element grandChild = new Element("grandChild");
    parent.appendChild(child.appendChild(grandChild));
    new StateTree(new UI().getInternals(), ElementChildrenList.class).getUI().getElement().appendChild(parent);
    final String eventType = "click";
    AtomicReference<Element> capturedTarget = new AtomicReference<>();
    final DomListenerRegistration registration = parent.addEventListener(eventType, e -> {
        capturedTarget.set(e.getEventTarget().orElse(null));
    });
    final ElementListenerMap listenerMap = parent.getNode().getFeature(ElementListenerMap.class);
    Set<String> expressions = getExpressions(listenerMap, eventType);
    Assert.assertEquals(0, expressions.size());
    registration.mapEventTargetElement();
    expressions = getExpressions(listenerMap, eventType);
    Assert.assertEquals(1, expressions.size());
    Assert.assertEquals(JsonConstants.MAP_STATE_NODE_EVENT_DATA, expressions.iterator().next());
    // child
    final JsonObject eventData = Json.createObject();
    eventData.put(JsonConstants.MAP_STATE_NODE_EVENT_DATA, child.getNode().getId());
    listenerMap.fireEvent(new DomEvent(parent, eventType, eventData));
    Assert.assertEquals(child, capturedTarget.get());
    // nothing reported -> empty optional
    listenerMap.fireEvent(new DomEvent(parent, eventType, Json.createObject()));
    Assert.assertNull("no element should be reported", capturedTarget.get());
    // grandchild
    eventData.put(JsonConstants.MAP_STATE_NODE_EVENT_DATA, grandChild.getNode().getId());
    listenerMap.fireEvent(new DomEvent(parent, eventType, eventData));
    Assert.assertEquals(grandChild, capturedTarget.get());
    // -1 -> empty optional
    eventData.put(JsonConstants.MAP_STATE_NODE_EVENT_DATA, -1);
    listenerMap.fireEvent(new DomEvent(parent, eventType, eventData));
    Assert.assertNull("no element should be reported", capturedTarget.get());
}