Back to Document

/*
 * Copyright (c) 2013 Oracle and/or its affiliates.
 * All rights reserved. Use is subject to license terms.
 *
 * This file is available and licensed under the following license:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
 *  - Neither the name of Oracle nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package filechoosersample;

import java.awt.Desktop;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.stage.FileChooser;
import javafx.stage.Stage;

public final class FileChooserSample extends Application {

    private Desktop desktop = Desktop.getDesktop();

    @Override
    public void start(final Stage stage) {
        stage.setTitle("File Chooser Sample");

        final FileChooser fileChooser = new FileChooser();
        final Button openButton = new Button("Open a Picture...");
        final Button openMultipleButton = new Button("Open Pictures...");   

        openButton.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent e) {
                    configureFileChooser(fileChooser);
                    File file = fileChooser.showOpenDialog(stage);
                    if (file != null) {
                        openFile(file);
                    }
                }
            });

        openMultipleButton.setOnAction(new EventHandler<ActionEvent>() {
                @Override
                public void handle(ActionEvent e) {
                    configureFileChooser(fileChooser);                               
                    List<File> list = 
                        fileChooser.showOpenMultipleDialog(stage);
                    if (list != null) {
                        for (File file : list) {
                            openFile(file);
                        }
                    }
                }
            });


        final GridPane inputGridPane = new GridPane();

        GridPane.setConstraints(openButton, 0, 1);
        GridPane.setConstraints(openMultipleButton, 1, 1);
        inputGridPane.setHgap(6);
        inputGridPane.setVgap(6);
        inputGridPane.getChildren().addAll(openButton, openMultipleButton);
        
        final Pane rootGroup = new VBox(12);
        rootGroup.getChildren().addAll(inputGridPane);
        rootGroup.setPadding(new Insets(12, 12, 12, 12));

        stage.setScene(new Scene(rootGroup));
        stage.show();
    }

    public static void main(String[] args) {
        Application.launch(args);
    }

    private static void configureFileChooser(
        final FileChooser fileChooser) {      
            fileChooser.setTitle("View Pictures");
            fileChooser.setInitialDirectory(
                new File(System.getProperty("user.home"))
            );                 
            fileChooser.getExtensionFilters().addAll(
                new FileChooser.ExtensionFilter("All Images", "*.*"),
                new FileChooser.ExtensionFilter("JPG", "*.jpg"),
                new FileChooser.ExtensionFilter("PNG", "*.png")
            );
    }

    private void openFile(File file) {
        try {
            desktop.open(file);
        } catch (IOException ex) {
            Logger.getLogger(FileChooserSample.class.getName()).log(
                Level.SEVERE, null, ex
            );
        }
    }
}