test/jdk/java/awt/FileDialog/MultipleMode.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Checkbox;
import java.awt.FileDialog;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.TextArea;
import java.io.File;

/*
 * @test
 * @bug 6467204
 * @summary Need to implement "extended" native FileDialog for JFileChooser
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual MultipleMode
*/

public class MultipleMode {

    private static final String INSTRUCTIONS =
            """
             1. Verify that the 'multiple' checkbox is off and press the 'open' button
             2. Verify that the file dialog doesn't allow the multiple file selection
             3. Select any file and close the file dialog
             4. The results will be displayed, verify the results
             5. Turn the 'multiple' checkbox on and press the 'open' button
             6. Verify that the file dialog allows the multiple file selection
             7. Select several files and close the file dialog
             8. The results will be displayed, verify the results.
            """;

    public static void main(String[] args) throws Exception {
        PassFailJFrame
            .builder()
            .title("MultipleMode test instructions")
            .instructions(INSTRUCTIONS)
            .rows(15)
            .columns(40)
            .position(PassFailJFrame.Position.TOP_LEFT_CORNER)
            .testUI(MultipleMode::init)
            .build()
            .awaitAndCheck();
    }

    private static Frame init() {
        Frame frame = new Frame("MultipleMode");
        TextArea sysout = new TextArea("", 20, 70);
        sysout.setEditable(false);

        final Checkbox mode = new Checkbox("multiple", false);

        Button open = new Button("open");
        open.addActionListener(e -> {
            FileDialog d = new FileDialog(frame);
            d.setMultipleMode(mode.getState());
            d.setVisible(true);

            // print the results
            sysout.append("DIR:\n");
            sysout.append("  %s\n".formatted(d.getDirectory()));
            sysout.append("FILE:\n");
            sysout.append("  %s\n".formatted(d.getFile()));
            sysout.append("FILES:\n");
            for (File f : d.getFiles()) {
                sysout.append("  %s\n".formatted(f));
            }
        });

        Panel panel = new Panel(new FlowLayout());
        panel.add(mode);
        panel.add(open);

        frame.setLayout(new BorderLayout());
        frame.add(panel, BorderLayout.NORTH);
        frame.add(sysout, BorderLayout.CENTER);

        frame.pack();

        return frame;
    }
}