org.eclipse.osbp.vaadin.addons.keyevents/src/org/eclipse/osbp/vaadin/addons/keyevents/KeyEventExtension.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License v1.0       
 * which accompanies this distribution, and is available at                  
 * http://www.eclipse.org/legal/epl-v10.html                                 
 *                                                                            
 * Contributors:   
 * Florian Pirchner <florian.pirchner@gmail.com> - Initial implementation
 */
package org.eclipse.osbp.vaadin.addons.keyevents;

import java.util.function.Consumer;

import org.eclipse.osbp.vaadin.addons.keyevents.client.Event;
import org.eclipse.osbp.vaadin.addons.keyevents.client.KeyEventServerRpc;

import com.vaadin.server.AbstractClientConnector;
import com.vaadin.server.AbstractExtension;
import com.vaadin.ui.UI;

@SuppressWarnings("serial")
public class KeyEventExtension extends AbstractExtension {

	private Consumer<Event> callback;

	KeyEventServerRpc rpc = new KeyEventServerRpc() {
		@Override
		public void onKeyPress(Event event) {
			callback.accept(event);
		}
	};

	private KeyEventExtension() {
		registerRpc(rpc);
	}

	public void extend(UI ui) {
		super.extend(ui);
	}

	public static KeyEventExtension addTo(AbstractClientConnector connector) {
		KeyEventExtension ext = new KeyEventExtension();
		ext.extend(connector);
		return ext;
	}

	public void setCallback(Consumer<Event> callback) {
		this.callback = callback;
	}

}