Java tutorial
/* * Copyright 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.dingziran.effective.client.content.widgets; import com.google.gwt.core.client.GWT; import com.google.gwt.core.client.RunAsyncCallback; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.i18n.client.Constants; import com.dingziran.effective.client.ContentWidget; import com.dingziran.effective.client.ContentWidgetView; import com.dingziran.effective.client.Showcase; import com.dingziran.effective.shared.Factory.GoalRequest; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Widget; import com.google.web.bindery.requestfactory.shared.Receiver; /** * Example file. */ public class CwBasicButton extends ContentWidget { /** * The constants used in this Content Widget. */ public static interface CwConstants extends Constants { String cwBasicButtonClickMessage(); String cwBasicButtonDescription(); String cwBasicButtonDisabled(); String cwBasicButtonName(); String cwBasicButtonNormal(); } /** * An instance of the constants. */ private final CwConstants constants; /** * Constructor. * * @param constants the constants */ public CwBasicButton(CwConstants constants) { super(constants.cwBasicButtonName(), constants.cwBasicButtonDescription()); this.constants = constants; view = new ContentWidgetView(hasMargins(), hasScrollableContent()); view.setName(getName()); view.setDescription(getDescription()); setWidget(view); // Create a panel to align the widgets HorizontalPanel hPanel = new HorizontalPanel(); hPanel.setSpacing(10); final String msg = constants.cwBasicButtonClickMessage(); // Add a normal button Button normalButton = new Button(constants.cwBasicButtonNormal(), new ClickHandler() { public void onClick(ClickEvent event) { Window.alert(msg); } }); normalButton.ensureDebugId("cwBasicButton-normal"); hPanel.add(normalButton); // Add a disabled button Button disabledButton = new Button(constants.cwBasicButtonDisabled()); disabledButton.ensureDebugId("cwBasicButton-disabled"); disabledButton.setEnabled(false); hPanel.add(disabledButton); view.setExample(hPanel); } }