Java examples for JavaFX:Dialog
Show a JavaFX dialog that can be cancelled with the given title and content .
/*/* ww w. java 2 s . com*/ * Copyright 2015 Thierry Wasylczenko * * 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. */ import javafx.scene.Node; import javafx.scene.control.Alert; import javafx.scene.control.ButtonType; import javafx.scene.control.Dialog; import javafx.stage.Stage; import java.util.Optional; import java.util.concurrent.ExecutionException; import java.util.concurrent.FutureTask; import java.util.logging.Level; import java.util.logging.Logger; public class Main{ private static final Logger LOGGER = Logger .getLogger(DialogHelper.class.getName()); /** * Show a dialog that can be cancelled with the given {@code title} and {@code content}. The method returns the * answer of the user which can be {@link javafx.scene.control.ButtonType#CANCEL} or * {@link javafx.scene.control.ButtonType#OK}. * * @param title The title of the dialog. * @param content The content of the dialog. * @return The answer of the user or {@code null} if no answer has been made. */ public static ButtonType showCancellableDialog(final String title, final Node content) { return displayDialog(buildDialog(title, content, ButtonType.CANCEL, ButtonType.OK)); } /** * Show and wait for the response of the given {@code dialog}. This method ensures the dialog is displayed in the * JavaFX application thread. * @param dialog The dialog to show. * @return The answer of the user or {@code null} if no answer has been made. */ private static ButtonType displayDialog(Dialog<ButtonType> dialog) { Optional<ButtonType> response = null; if(dialog != null) { final FutureTask<Optional<ButtonType>> future = new FutureTask<>(() -> dialog.showAndWait()); PlatformHelper.run(future); try { response = future.get(); } catch (InterruptedException e) { e.printStackTrace(); } catch (ExecutionException e) { e.printStackTrace(); } } return response != null && response.isPresent() ? response.get() : null; } /** * Build a {@link javafx.scene.control.Dialog Dialog} object. This method ensures the dialog is created in a JavaFX * application thread. If the dialog can not be created then {@code null} is returned. * @param title The title of the Dialog * @param content The content of the Dialog * @param buttons The type of buttons the Dialog will contain. * @return A well created Dialog or {@code null} if an error occurred during the creation of the Dialog. */ private static Dialog buildDialog(final String title, final Node content, final ButtonType ... buttons) { final FutureTask<Dialog> future = new FutureTask<>(() -> { final Dialog dialog = new Dialog(); dialog.setGraphic(null); dialog.setHeaderText(null); dialog.setTitle(title); dialog.getDialogPane().getButtonTypes().addAll(buttons); dialog.getDialogPane().setContent(content); dialog.getDialogPane().getStylesheets().add("/com/twasyl/slideshowfx/css/Default.css"); return dialog; }); PlatformHelper.run(future); Dialog dialog = null; try { dialog = future.get(); } catch (InterruptedException | ExecutionException e) { LOGGER.log(Level.SEVERE, "Can not build a Dialog", e); } return dialog; } }