TopPanel.java

/**
 * Copyright 2005-2014 Restlet
 * 
 * The contents of this file are subject to the terms of one of the following
 * open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
 * select the license that you prefer but you may not use this file except in
 * compliance with one of these Licenses.
 * 
 * You can obtain a copy of the Apache 2.0 license at
 * http://www.opensource.org/licenses/apache-2.0
 * 
 * You can obtain a copy of the EPL 1.0 license at
 * http://www.opensource.org/licenses/eclipse-1.0
 * 
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 * 
 * Alternatively, you can obtain a royalty free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * http://restlet.com/products/restlet-framework
 * 
 * Restlet is a registered trademark of Restlet S.A.S.
 */

package org.restlet.example.book.restlet.ch09.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;

/**
 * The top panel, which contains the 'welcome' message and various links.
 */
public class TopPanel extends Composite {

  interface Binder extends UiBinder<Widget, TopPanel> { }
  private static final Binder binder = GWT.create(Binder.class);

  @UiField Anchor signOutLink;
  @UiField Anchor aboutLink;

  public TopPanel() {
    initWidget(binder.createAndBindUi(this));
  }

  @UiHandler("aboutLink")
  void onAboutClicked(ClickEvent event) {
    // When the 'About' item is selected, show the AboutDialog.
    // Note that showing a dialog box does not block -- execution continues
    // normally, and the dialog fires an event when it is closed.
    AboutDialog dlg = new AboutDialog();
    dlg.show();
    dlg.center();
  }

  @UiHandler("signOutLink")
  void onSignOutClicked(ClickEvent event) {
    Window.alert("If this were implemented, you would be signed out now.");
  }
}