Java tutorial
package com.oodrive.nuage.webui.component.window; /* * #%L * Project eguan * %% * Copyright (C) 2012 - 2015 Oodrive * %% * 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. * #L% */ import com.oodrive.nuage.webui.model.AbstractItemModel; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; /** * Abstract class use to create confirmation windows. * * @author oodrive * @author ebredzinski * */ public abstract class AbstractConfirmationWindow extends AbstractWindow { /** * Interface used to execute action on a given model * * */ public interface ActionModel { public void execute(final AbstractItemModel model); } /* Reference on the action to execute if OK is pressed */ private final ActionModel action; /* Message confirmation to display */ private final String confirmation; public AbstractConfirmationWindow(final ActionModel action, final String confirmation) { super(true); this.action = action; this.confirmation = confirmation; } @SuppressWarnings("serial") @Override public Window init(final AbstractItemModel model) { // Add new window final Window vvrConfirmationWindow = new Window("Confirmation"); vvrConfirmationWindow.center(); vvrConfirmationWindow.setResizable(false); final VerticalLayout vvrConfirmationLayout = new VerticalLayout(); vvrConfirmationLayout.setMargin(true); vvrConfirmationWindow.setContent(vvrConfirmationLayout); // Message to display before buttons final Label confirmationMessage = new Label(confirmation); vvrConfirmationLayout.addComponent(confirmationMessage); vvrConfirmationLayout.setComponentAlignment(confirmationMessage, Alignment.MIDDLE_CENTER); vvrConfirmationLayout.setSpacing(true); final HorizontalLayout buttonLayout = new HorizontalLayout(); vvrConfirmationLayout.addComponent(buttonLayout); // Button OK final Button okButton = new Button("OK"); buttonLayout.setSizeFull(); buttonLayout.addComponent(okButton); buttonLayout.setComponentAlignment(okButton, Alignment.MIDDLE_CENTER); okButton.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent event) { try { action.execute(model); vvrConfirmationWindow.close(); } catch (final Exception e) { vvrConfirmationWindow.close(); } } }); // Button cancel final Button cancelButton = new Button("Cancel"); buttonLayout.addComponent(cancelButton); buttonLayout.setComponentAlignment(cancelButton, Alignment.MIDDLE_CENTER); cancelButton.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent event) { // Just close the window vvrConfirmationWindow.close(); } }); return vvrConfirmationWindow; } }