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

Example 1 with StateTree

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

the class ClientJsonCodecTest method decodeWithTypeInfo_element.

@Test
public void decodeWithTypeInfo_element() {
    StateTree tree = new StateTree(null);
    StateNode node = new StateNode(42, tree);
    tree.registerNode(node);
    JsElement element = new JsElement() {
    };
    node.setDomNode(element);
    JsonArray json = JsonUtils.createArray(Json.create(JsonCodec.NODE_TYPE), Json.create(node.getId()));
    Object decoded = ClientJsonCodec.decodeWithTypeInfo(tree, json);
    Assert.assertSame(element, decoded);
}

Example 2 with StateTree

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

the class RegistryTest method setAndGet.

@Test
public void setAndGet() {
    StateTree instance = new StateTree(registry);
    registry.set(StateTree.class, instance);
    Assert.assertSame(instance, registry.get(StateTree.class));
    Assert.assertSame(instance, registry.getStateTree());
}

Example 3 with StateTree

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

the class MessageHandler method processChanges.

private void processChanges(JsonObject json) {
    StateTree tree = registry.getStateTree();
    JsSet<StateNode> updatedNodes = TreeChangeProcessor.processChanges(tree, json.getArray("changes"));
    if (!registry.getApplicationConfiguration().isProductionMode()) {
        try {
            JsonObject debugJson = tree.getRootNode().getDebugJson();
            Console.log("StateTree after applying changes:");
            Console.log(debugJson);
        } catch (Exception e) {
            Console.error("Failed to log state tree");
            Console.error(e);
        }
    }
    Reactive.addPostFlushListener(() -> Scheduler.get().scheduleDeferred(() -> updatedNodes.forEach(this::afterServerUpdates)));
}

Example 4 with StateTree

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

the class Poller method poll.

/**
 * Polls the server for changes.
 */
public void poll() {
    StateTree stateTree = registry.getStateTree();
    stateTree.sendEventToServer(stateTree.getRootNode(), PollEvent.DOM_EVENT_NAME, null);
}

Example 5 with StateTree

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

the class GwtExecuteJavaScriptElementUtilsTest method testReturnChannel_passedToExecJavaScript_messageSentToServer.

public void testReturnChannel_passedToExecJavaScript_messageSentToServer() {
    ApplicationConfiguration applicationConfiguration = new ApplicationConfiguration();
    applicationConfiguration.setApplicationId("test");
    // Pass a number to the channel
    String expression = "$0(2)";
    int expectedNodeId = 10;
    int expectedChannelId = 20;
    int[] runCountHolder = { 0 };
    ExecuteJavaScriptProcessor processor = new ExecuteJavaScriptProcessor(new Registry() {

        {
            set(StateTree.class, new StateTree(this));
            set(ApplicationConfiguration.class, applicationConfiguration);
            set(ServerConnector.class, new ServerConnector(this) {

                @Override
                public void sendReturnChannelMessage(int stateNodeId, int channelId, JsonArray arguments) {
                    assertEquals(expectedNodeId, stateNodeId);
                    assertEquals(expectedChannelId, channelId);
                    assertEquals("Args array should contain the value passed to the channel function", "[2]", arguments.toJson());
                    runCountHolder[0]++;
                }
            });
        }
    });
    JsonArray serializedChannel = Json.createArray();
    serializedChannel.set(0, JsonCodec.RETURN_CHANNEL_TYPE);
    serializedChannel.set(1, expectedNodeId);
    serializedChannel.set(2, expectedChannelId);
    JsonArray invocation = Json.createArray();
    // Assign channel as $0
    invocation.set(0, serializedChannel);
    invocation.set(1, expression);
    JsonArray invocations = Json.createArray();
    invocations.set(0, invocation);
    processor.execute(invocations);
    assertEquals(1, runCountHolder[0]);
}