test/jdk/java/awt/Choice/DisabledList.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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import java.awt.BorderLayout;
import java.awt.Checkbox;
import java.awt.Choice;
import java.awt.Frame;
import java.awt.Window;
import java.awt.event.ItemEvent;

/*
 * @test
 * @bug 6476183
 * @summary Drop down of a Choice changed to enabled state has a disabled like appearance
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual DisabledList
 */

public class DisabledList {

    private static final String INSTRUCTIONS = """
            1) Select the checkbox
            2) Open Choice
            3) Drag mouse over the scrollbar or drag out it the choice
            4) If choice's items become disabled press fail, otherwise pass
            """;

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
                .title("DisabledList Instructions")
                .instructions(INSTRUCTIONS)
                .rows((int) INSTRUCTIONS.lines().count() + 3)
                .columns(45)
                .testUI(DisabledList::createAndShowUI)
                .logArea(4)
                .build()
                .awaitAndCheck();
    }

    private static Window createAndShowUI() {
        Frame frame = new Frame("DisabledList");
        frame.setSize(200, 200);
        frame.validate();
        Checkbox checkbox = new Checkbox("checkbox");
        final Choice choice = new Choice();
        choice.setEnabled(false);
        for (int i = 0; i < 15; i++) {
            choice.addItem("Item" + i);
        }
        checkbox.addItemListener(event -> {
            PassFailJFrame.log("CheckBox.itemStateChanged occurred");
            choice.setEnabled(event.getStateChange() == ItemEvent.SELECTED);
        });
        frame.add(BorderLayout.NORTH, checkbox);
        frame.add(BorderLayout.CENTER, choice);
        return frame;
    }
}