Java tutorial
/* * Ext GWT 2.2.4 - Ext for GWT * Copyright(c) 2007-2010, Ext JS, LLC. * licensing@extjs.com * * http://extjs.com/license */ package com.extjs.gxt.samples.client.examples.windows; import com.extjs.gxt.ui.client.event.ButtonEvent; import com.extjs.gxt.ui.client.event.Listener; import com.extjs.gxt.ui.client.event.MessageBoxEvent; import com.extjs.gxt.ui.client.event.SelectionListener; import com.extjs.gxt.ui.client.util.Format; import com.extjs.gxt.ui.client.util.Params; import com.extjs.gxt.ui.client.widget.Info; import com.extjs.gxt.ui.client.widget.LayoutContainer; import com.extjs.gxt.ui.client.widget.MessageBox; import com.extjs.gxt.ui.client.widget.ProgressBar; import com.extjs.gxt.ui.client.widget.button.Button; import com.extjs.gxt.ui.client.widget.button.ButtonBar; import com.extjs.gxt.ui.client.widget.layout.FlowData; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.Timer; public class MessageBoxExample extends LayoutContainer { @Override protected void onRender(Element parent, int pos) { super.onRender(parent, pos); final Listener<MessageBoxEvent> l = new Listener<MessageBoxEvent>() { public void handleEvent(MessageBoxEvent ce) { Button btn = ce.getButtonClicked(); Info.display("MessageBox", "The '{0}' button was pressed", btn.getText()); } }; final ButtonBar buttonBar = new ButtonBar(); buttonBar.setMinButtonWidth(75); buttonBar.add(new Button("Confirm", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { MessageBox.confirm("Confirm", "Are you sure you want to do that?", l); } })); buttonBar.add(new Button("Prompt", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { final MessageBox box = MessageBox.prompt("Name", "Please enter your name:"); box.addCallback(new Listener<MessageBoxEvent>() { public void handleEvent(MessageBoxEvent be) { Info.display("MessageBox", "You entered '{0}'", new Params(be.getValue())); } }); } })); buttonBar.add(new Button("Multiline Prompt", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { MessageBox box = MessageBox.prompt("Address", "Please enter your address:", true); box.addCallback(new Listener<MessageBoxEvent>() { public void handleEvent(MessageBoxEvent be) { String v = Format.ellipse(be.getValue(), 80); Info.display("MessageBox", "You entered '{0}'", new Params(v)); } }); } })); buttonBar.add(new Button("Yes/No/Cancel", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { MessageBox box = new MessageBox(); box.setButtons(MessageBox.YESNOCANCEL); box.setIcon(MessageBox.QUESTION); box.setTitle("Save Changes?"); box.addCallback(l); box.setMessage( "You are closing a tab that has unsaved changes. Would you like to save your changes?"); box.show(); } })); buttonBar.add(new Button("Progress", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { final MessageBox box = MessageBox.progress("Please wait", "Loading items...", "Initializing..."); final ProgressBar bar = box.getProgressBar(); final Timer t = new Timer() { float i; @Override public void run() { bar.updateProgress(i / 100, (int) i + "% Complete"); i += 5; if (i > 105) { cancel(); box.close(); Info.display("Message", "Items were loaded", ""); } } }; t.scheduleRepeating(500); } })); buttonBar.add(new Button("Wait", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { final MessageBox box = MessageBox.wait("Progress", "Saving your data, please wait...", "Saving..."); Timer t = new Timer() { @Override public void run() { Info.display("Message", "Your fake data was saved", ""); box.close(); } }; t.schedule(5000); } })); buttonBar.add(new Button("Alert", new SelectionListener<ButtonEvent>() { public void componentSelected(ButtonEvent ce) { MessageBox.alert("Alert", "Access Denied", l); } })); add(buttonBar, new FlowData(10)); } }