#736 Example of converting unsupported font tag attribute to CSS.

danfickle · Jul 17, 2021 · 09faaef · 09faaef
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diff --git a/...tmltopdf-examples/src/main/resources/visualtest/expected/issue-736-font-tag-converter.pdf b/...tmltopdf-examples/src/main/resources/visualtest/expected/issue-736-font-tag-converter.pdf
diff --git a/openhtmltopdf-examples/src/main/resources/visualtest/html/issue-736-font-tag-converter.html b/openhtmltopdf-examples/src/main/resources/visualtest/html/issue-736-font-tag-converter.html
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+<html>
+<head>
+<style>
+@page {
+  size: 300px 300px;
+}
+</style>
+</head>
+<body>
+<font>Black text</font>
+<font color="#ff0000">Red text</font>
+<font color="#00ff00" style="background-color: red">Green text on red</font>
+<font color="#0000ff" style="background-color: orange;">Blue text on orange</font>
+</body>
+</html>
diff --git a/...test/java/com/openhtmltopdf/visualregressiontests/DOMManipulatorVisualRegressionTest.java b/...test/java/com/openhtmltopdf/visualregressiontests/DOMManipulatorVisualRegressionTest.java
@@ -0,0 +1,74 @@
+package com.openhtmltopdf.visualregressiontests;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+
+import com.openhtmltopdf.extend.FSDOMMutator;
+import com.openhtmltopdf.testlistener.PrintingRunner;
+import com.openhtmltopdf.visualtest.TestSupport;
+import com.openhtmltopdf.visualtest.VisualTester;
+
+@RunWith(PrintingRunner.class)
+public class DOMManipulatorVisualRegressionTest {
+    private VisualTester vt;
+
+    @BeforeClass
+    public static void configureTests() throws IOException {
+        TestSupport.quietLogs();
+        TestSupport.makeFontFiles();
+    }
+
+    @Before
+    public void configureTester() {
+        File outputDirectory = new File("target/test/visual-tests/test-output/");
+
+        outputDirectory.mkdirs();
+
+        vt = new VisualTester(
+                "/visualtest/html/",     /* Resource path. */
+                "/visualtest/expected/", /* Expected resource path */
+                outputDirectory
+                );
+    }
+
+    /**
+     * Tests an example of converting font tags with color attributes to CSS
+     * style attributes.
+     */
+    @Test
+    public void testIssue736FontTagConverter() throws IOException {
+        FSDOMMutator domChanger = (doc) -> {
+            NodeList fontTags = doc.getElementsByTagName("font");
+
+            for (int i = 0; i < fontTags.getLength(); i++) {
+                Element fontTag = (Element) fontTags.item(i);
+
+                if (fontTag.hasAttribute("color")) {
+                    String color = fontTag.getAttribute("color");
+
+                    if (!fontTag.hasAttribute("style")) {
+                        fontTag.setAttribute("style", "color: " + color + ';');
+                    } else {
+                        String oldStyle = fontTag.getAttribute("style");
+                        String newStyle = oldStyle + "; color: " + color + ';';
+
+                        fontTag.setAttribute("style", newStyle);
+                    }
+                }
+            }
+        };
+
+        assertTrue(vt.runTest("issue-736-font-tag-converter", (builder) -> {
+            builder.addDOMMutator(domChanger);
+        }));
+    }
+}