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8368892: Make JEditorPane/TestBrowserBGColor.java headless

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Reviewed-by: serb, azvegint
This commit is contained in:
Alexey Ivanov 2025-10-07 10:21:33 +00:00
parent aed9485bbb
commit 6bec42adcc
1 changed files with 62 additions and 77 deletions
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139
test/jdk/javax/swing/JEditorPane/TestBrowserBGColor.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2019, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -23,94 +23,79 @@
/*
* @test
* @key headful
* @bug 8213781
* @summary Verify webpage background color renders correctly in JEditorPane
*/
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.MalformedURLException;
import javax.swing.JDialog;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.html.HTMLFrameHyperlinkEvent;
import javax.swing.text.html.HTMLDocument;
import java.awt.Color;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Robot;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Objects;
import java.util.stream.IntStream;
public class TestBrowserBGColor extends JFrame implements HyperlinkListener {
import javax.imageio.ImageIO;
import javax.swing.JEditorPane;
import javax.swing.text.StyleConstants;
import javax.swing.text.View;
private static TestBrowserBGColor b;
private static JEditorPane browser;
import static java.awt.image.BufferedImage.TYPE_INT_RGB;
import static java.lang.Integer.toHexString;
public final class TestBrowserBGColor {
private static final String HTML_DOC =
"<!DOCTYPE html>"
+ "<html><head>"
+ "<style> body { background: #FFF; } </style>"
+ "<title>Title</title></head>"
+ "<body> </body> </html>";
private static final int SIZE = 300;
public static void main(final String[] args) throws Exception {
Robot r = new Robot();
SwingUtilities.invokeAndWait(() -> {
try {
b = new TestBrowserBGColor();
} catch (Exception e) {
throw new RuntimeException(e);
}
b.setSize(Toolkit.getDefaultToolkit().getScreenSize());
b.setVisible(true);
b.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
b.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
b.dispose();
b = null;
}
});
});
r.waitForIdle();
r.delay(500);
SwingUtilities.invokeAndWait(() -> {
Insets insets = browser.getInsets();
Point loc = browser.getLocationOnScreen();
Color c = r.getPixelColor( loc.x + insets.left+100,
loc.y + insets.top + 100);
b.dispose();
if (!c.equals(Color.WHITE)) {
throw new RuntimeException("webpage background color wrong");
}
});
}
String htmlDoc = " <!DOCTYPE html> <html><style> body { background: #FFF; } </style> <head> <title>Title</title> </head> <body> </body> </html>";
public TestBrowserBGColor() throws IOException, MalformedURLException {
browser = new JEditorPane("text/html", htmlDoc);
JEditorPane browser = new JEditorPane("text/html", HTML_DOC);
browser.setEditable(false);
browser.addHyperlinkListener(this);
JScrollPane scroll = new JScrollPane(browser);
getContentPane().add(scroll);
browser.setSize(SIZE, SIZE);
BufferedImage image = new BufferedImage(SIZE, SIZE, TYPE_INT_RGB);
Graphics g = image.getGraphics();
browser.paint(g);
g.dispose();
Color bgColor = StyleConstants.getBackground(
getBodyView(browser.getUI()
.getRootView(browser))
.getAttributes());
if (!bgColor.equals(Color.WHITE)) {
saveImage(image);
throw new RuntimeException("Wrong background color: "
+ toHexString(bgColor.getRGB())
+ " vs "
+ toHexString(Color.WHITE.getRGB()));
}
}
public void hyperlinkUpdate(final HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
JEditorPane pane = (JEditorPane) e.getSource();
if (e instanceof HTMLFrameHyperlinkEvent) {
HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent) e;
HTMLDocument doc = (HTMLDocument) pane.getDocument();
doc.processHTMLFrameHyperlinkEvent(evt);
} else {
try {
pane.setPage(e.getURL());
} catch (Throwable t) {
t.printStackTrace();
}
}
private static View getBodyView(final View view) {
if ("body".equals(view.getElement()
.getName())) {
return view;
}
return IntStream.range(0, view.getViewCount())
.mapToObj(view::getView)
.map(TestBrowserBGColor::getBodyView)
.filter(Objects::nonNull)
.findFirst()
.orElse(null);
}
private static void saveImage(BufferedImage image) {
try {
ImageIO.write(image, "png",
new File("html-rendering.png"));
} catch (IOException ignored) {
}
}
}