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

Example 11 with StateTree

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

the class GwtAtmoshperePushConnectionTest method gwtSetUp.

@Override
protected void gwtSetUp() throws Exception {
    super.gwtSetUp();
    initScheduler(new CustomScheduler());
    registry = new Registry() {

        {
            set(ConstantPool.class, new ConstantPool());
            set(StateTree.class, new StateTree(this));
            set(URIResolver.class, new URIResolver(this));
            set(UILifecycle.class, new UILifecycle());
            set(ApplicationConfiguration.class, new ApplicationConfiguration());
            set(MessageHandler.class, new MessageHandler(this));
            set(PushConfiguration.class, new PushConfiguration(this) {

                @Override
                public JsMap<String, String> getParameters() {
                    return JsCollections.map();
                }
            });
            set(ConnectionStateHandler.class, new DefaultConnectionStateHandler(this));
        }
    };
}

Example 12 with StateTree

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

the class MapProperty method getSyncToServerCommand.

/**
 * Sets the value of this property and returns a synch to server command.
 *
 * @param newValue
 *            the new value to set.
 * @see #syncToServer(Object)
 */
public Runnable getSyncToServerCommand(Object newValue) {
    Object currentValue = hasValue() ? getValue() : null;
    if (Objects.equals(newValue, currentValue)) {
        // in case we are here with the same value that has been set from
        // the server then we unlock client side updates already here via
        // unmarking the server update flag. It allows another client side
        // potential change for the same property being propagated to the
        // server once the server value is set successfully (e.g. mutation
        // the same property from its observer).
        isServerUpdate = false;
    }
    if (!(Objects.equals(newValue, currentValue) && hasValue()) && !isServerUpdate) {
        StateNode node = getMap().getNode();
        StateTree tree = node.getTree();
        if (tree.isActive(node)) {
            doSetValue(newValue);
            return () -> tree.sendNodePropertySyncToServer(this);
        } else {
            /*
                 * Fire an fake event to reset the property value back in the
                 * DOM element: we don't know how exactly set this property but
                 * it has to be set to the property value because of listener
                 * added to the property during binding.
                 */
            eventRouter.fireEvent(new MapPropertyChangeEvent(this, currentValue, currentValue));
            // Flush is needed because we are out of normal lifecycle which
            // call the flush() automatically.
            Reactive.flush();
        }
    }
    return NO_OP;
}