Examples with StateNode com.vaadin.client.flow.StateNode used on opensource projects

Example 11 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class GwtTemplateBinderTest method testJSExpresisonsWithSubProperties.

public void testJSExpresisonsWithSubProperties() {
    JsonObject beanType = Json.createObject();
    beanType.put(MODEL_KEY, "String");
    JsonObject modelType = Json.createObject();
    modelType.put(MODEL_KEY, beanType);
    setModelType(stateNode, modelType);
    // create binding with expression : : key.key ? key.key+'@bar.com'
    // :'foo'
    TestTextTemplate templateNode = TestTextTemplate.create(TestBinding.createTextValueBinding(MODEL_KEY + "." + MODEL_KEY + " ? " + MODEL_KEY + "." + MODEL_KEY + "+'@bar.com' : 'foo'"));
    Node domNode = createText(templateNode);
    NodeMap parentMap = stateNode.getMap(NodeFeatures.TEMPLATE_MODELMAP);
    StateNode childNode = new StateNode(458, stateNode.getTree());
    NodeMap childMap = childNode.getMap(NodeFeatures.TEMPLATE_MODELMAP);
    parentMap.getProperty(MODEL_KEY).setValue(childNode);
    childMap.getProperty(MODEL_KEY).setValue(null);
    Reactive.flush();
    assertEquals("foo", domNode.getTextContent());
    childMap.getProperty(MODEL_KEY).setValue("value");
    Reactive.flush();
    assertEquals("value@bar.com", domNode.getTextContent());
}

Example 12 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class PolymerUtils method convertToJson.

/**
 * Makes an attempt to convert an object into json.
 *
 * @param object
 *            the object to convert to json
 * @return json from object, {@code null} for null
 */
public static JsonValue convertToJson(Object object) {
    if (object instanceof StateNode) {
        StateNode node = (StateNode) object;
        NodeFeature feature = null;
        if (node.hasFeature(NodeFeatures.ELEMENT_PROPERTIES)) {
            feature = node.getMap(NodeFeatures.ELEMENT_PROPERTIES);
        } else if (node.hasFeature(NodeFeatures.TEMPLATE_MODELLIST)) {
            feature = node.getList(NodeFeatures.TEMPLATE_MODELLIST);
        } else if (node.hasFeature(NodeFeatures.BASIC_TYPE_VALUE)) {
            return convertToJson(node.getMap(NodeFeatures.BASIC_TYPE_VALUE).getProperty(NodeProperties.VALUE));
        }
        assert feature != null : "Don't know how to convert node without map or list features";
        JsonValue convert = feature.convert(PolymerUtils::convertToJson);
        if (convert instanceof JsonObject && !((JsonObject) convert).hasKey("nodeId")) {
            ((JsonObject) convert).put("nodeId", node.getId());
        }
        return convert;
    } else if (object instanceof MapProperty) {
        MapProperty property = (MapProperty) object;
        if (property.getMap().getId() == NodeFeatures.BASIC_TYPE_VALUE) {
            return convertToJson(property.getValue());
        } else {
            JsonObject convertedObject = Json.createObject();
            convertedObject.put(property.getName(), convertToJson(property.getValue()));
            return convertedObject;
        }
    } else {
        return WidgetUtil.crazyJsoCast(object);
    }
}

Example 13 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class ElementTemplateBindingStrategy method bind.

@Override
protected void bind(StateNode modelNode, Element element, int templateId, TemplateBinderContext context) {
    ElementTemplateNode templateNode = (ElementTemplateNode) getTemplateNode(modelNode.getTree(), templateId);
    bindProperties(modelNode, templateNode, element);
    bindClassNames(modelNode, templateNode, element);
    bindAttributes(modelNode, templateNode, element);
    JsArray<Double> children = templateNode.getChildrenIds();
    if (children != null) {
        for (int i = 0; i < children.length(); i++) {
            int childTemplateId = children.get(i).intValue();
            Node child = createAndBind(modelNode, childTemplateId, context);
            DomApi.wrap(element).appendChild(child);
        }
    }
    registerEventHandlers(context.getTemplateRoot(), templateNode, element);
    MapProperty overrideProperty = modelNode.getMap(NodeFeatures.TEMPLATE_OVERRIDES).getProperty(String.valueOf(templateNode.getId()));
    if (overrideProperty.hasValue()) {
        /*
             * Bind right away. We don't need to listen to property value
             * changes since the value will never change once it has been set.
             */
        bindOverrideNode(element, overrideProperty, context);
    } else {
        /*
             * React in case an override nodes appears later on.
             */
        EventRemover remover = overrideProperty.addChangeListener(e -> Reactive.addFlushListener(() -> bindOverrideNode(element, overrideProperty, context)));
        /*
             * Should preferably remove the change listener immediately when the
             * first event is fired, but Java makes it so difficult to reference
             * the remover from inside the event handler.
             */
        modelNode.addUnregisterListener(e -> remover.remove());
    }
    if (element == context.getTemplateRoot().getDomNode()) {
        // Only bind element.$server for the template root element using the
        // data in the state node. Other elements might get their own
        // $server through an override node
        ServerEventHandlerBinder.bindServerEventHandlerNames(element, context.getTemplateRoot());
    }
}

Example 14 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class ElementTemplateBindingStrategy method bindOverrideNode.

private void bindOverrideNode(Element element, MapProperty overrideProperty, BinderContext context) {
    StateNode overrideNode = (StateNode) overrideProperty.getValue();
    /*
         * bind checks that the we haven't already bound the same state node
         * previously
         */
    context.bind(overrideNode, element);
}

Example 15 with StateNode

use of com.vaadin.client.flow.StateNode in project flow by vaadin.

the class SimpleElementBindingStrategy method verifyAttachedElement.

private boolean verifyAttachedElement(Element element, StateNode attachNode, String id, String address, BindingContext context) {
    StateNode node = context.node;
    String tag = getTag(attachNode);
    boolean failure = false;
    if (element == null) {
        failure = true;
        Console.warn(ELEMENT_ATTACH_ERROR_PREFIX + address + " is not found. The requested tag name is '" + tag + "'");
    } else if (!ElementUtil.hasTag(element, tag)) {
        failure = true;
        Console.warn(ELEMENT_ATTACH_ERROR_PREFIX + address + " has the wrong tag name '" + element.getTagName() + "', the requested tag name is '" + tag + "'");
    }
    if (failure) {
        node.getTree().sendExistingElementWithIdAttachToServer(node, attachNode.getId(), -1, id);
        return false;
    }
    if (!node.hasFeature(NodeFeatures.SHADOW_ROOT_DATA)) {
        return true;
    }
    NodeMap map = node.getMap(NodeFeatures.SHADOW_ROOT_DATA);
    StateNode shadowRootNode = (StateNode) map.getProperty(NodeProperties.SHADOW_ROOT).getValue();
    if (shadowRootNode == null) {
        return true;
    }
    NodeList list = shadowRootNode.getList(NodeFeatures.ELEMENT_CHILDREN);
    Integer existingId = null;
    for (int i = 0; i < list.length(); i++) {
        StateNode stateNode = (StateNode) list.get(i);
        Node domNode = stateNode.getDomNode();
        if (domNode.equals(element)) {
            existingId = stateNode.getId();
            break;
        }
    }
    if (existingId != null) {
        Console.warn(ELEMENT_ATTACH_ERROR_PREFIX + address + " has been already attached previously via the node id='" + existingId + "'");
        node.getTree().sendExistingElementWithIdAttachToServer(node, attachNode.getId(), existingId, id);
        return false;
    }
    return true;
}