Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.apache.openaz.xacml.admin.view.windows; import com.vaadin.annotations.AutoGenerated; import com.vaadin.event.FieldEvents.TextChangeEvent; import com.vaadin.event.FieldEvents.TextChangeListener; import com.vaadin.event.ShortcutAction.KeyCode; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; // import com.vaadin.ui.CustomComponent; import com.vaadin.ui.TextField; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; public class RenamePolicyFileWindow extends Window { /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */ @AutoGenerated private VerticalLayout mainLayout; @AutoGenerated private Button buttonSave; @AutoGenerated private TextField textFieldFilename; /** * */ private static final long serialVersionUID = 1L; private RenamePolicyFileWindow self = this; private String newFilename = null; /** * The constructor should first build the main layout, set the * composition root and then do any custom initialization. * * The constructor will not be automatically regenerated by the * visual editor. */ public RenamePolicyFileWindow(String currentFilename) { buildMainLayout(); //setCompositionRoot(mainLayout); setContent(mainLayout); this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize the text field // this.textFieldFilename.setValue(currentFilename); this.textFieldFilename.setImmediate(true); this.textFieldFilename.addTextChangeListener(new TextChangeListener() { private static final long serialVersionUID = 1L; @Override public void textChange(TextChangeEvent event) { if (event.getText() == null || event.getText().isEmpty()) { self.buttonSave.setEnabled(false); } else { self.buttonSave.setEnabled(true); } } }); // // Initialize the button // this.buttonSave.setClickShortcut(KeyCode.ENTER); this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { // // Save the value // self.newFilename = self.textFieldFilename.getValue(); // // Make sure it ends with .xml // if (self.newFilename.endsWith(".xml") == false) { self.newFilename = self.newFilename + ".xml"; } // // Close the window // self.close(); } }); this.textFieldFilename.focus(); } public String getNewFilename() { return this.newFilename; } @AutoGenerated private VerticalLayout buildMainLayout() { // common part: create layout mainLayout = new VerticalLayout(); mainLayout.setImmediate(false); mainLayout.setWidth("-1px"); mainLayout.setHeight("-1px"); mainLayout.setMargin(true); mainLayout.setSpacing(true); // top-level component properties setWidth("-1px"); setHeight("-1px"); // textFieldFilename textFieldFilename = new TextField(); textFieldFilename.setCaption("Policy File Name"); textFieldFilename.setImmediate(false); textFieldFilename.setWidth("-1px"); textFieldFilename.setHeight("-1px"); mainLayout.addComponent(textFieldFilename); // buttonSave buttonSave = new Button(); buttonSave.setCaption("Save"); buttonSave.setImmediate(false); buttonSave.setWidth("-1px"); buttonSave.setHeight("-1px"); mainLayout.addComponent(buttonSave); mainLayout.setComponentAlignment(buttonSave, new Alignment(24)); return mainLayout; } }