Fix warnings for icon font without space inside PDF/A, add tests

openhtmltopdf-core/src/main/java/com/openhtmltopdf/render/InlineBox.java

@@ -36,11 +36,11 @@
 import com.openhtmltopdf.layout.WhitespaceStripper;
 
 /**
- * A class which reprsents a portion of an inline element. If an inline element
+ * A class which represents a portion of an inline element. If an inline element
  * does not contain any nested elements, then a single <code>InlineBox</code>
  * object will contain the content for the entire element. Otherwise multiple
  * <code>InlineBox</code> objects will be created corresponding to each
- * discrete chunk of text appearing in the elment. It is not rendered directly
+ * discrete chunk of text appearing in the element. It is not rendered directly
  * (and hence does not extend from {@link Box}), but does play an important
  * role in layout (for example, when calculating min/max widths). Note that it
  * does not contain children. Inline content is stored as a flat list in the
@@ -235,7 +235,7 @@ public int getTrailingSpaceWidth(LayoutContext c) {
 
     private int calcMinWidthFromWordLength(
             LayoutContext c, int cbWidth, boolean trimLeadingSpace, boolean includeWS) {
-        int spaceWidth = getSpaceWidth(c);
+        int spaceWidth = -1;
 
         int last = 0;
         int current = 0;
@@ -292,6 +292,9 @@ private int calcMinWidthFromWordLength(
                     break;
                 }
             }
+            if (spaceCount > 0 && spaceWidth == -1) {
+                spaceWidth = getSpaceWidth(c);
+            }
         }
 
         String currentWord = text.substring(last);

openhtmltopdf-examples/src/main/java/com/openhtmltopdf/testcases/TestcaseRunner.java

@@ -29,6 +29,7 @@
 import com.openhtmltopdf.mathmlsupport.MathMLDrawer;
 import com.openhtmltopdf.objects.StandardObjectDrawerFactory;
 import com.openhtmltopdf.pdfboxout.PdfRendererBuilder;
+import com.openhtmltopdf.pdfboxout.PdfRendererBuilder.PdfAConformance;
 import com.openhtmltopdf.render.DefaultObjectDrawerFactory;
 import com.openhtmltopdf.render.RenderingContext;
 import com.openhtmltopdf.svgsupport.BatikSVGDrawer;
@@ -123,17 +124,24 @@ public static void main(String[] args) throws Exception {
 	 * Will throw an exception if a SEVERE or WARNING message is logged.
 	 */
 	public static void runTestWithoutOutput(String testCaseFile) throws Exception {
-		runTestWithoutOutput(testCaseFile, false);
+		runTestWithoutOutput(testCaseFile, PdfAConformance.NONE, false);
+	}
+
+        /**
+	 * Will throw an exception if a SEVERE or WARNING message is logged.
+	 */
+	public static void runTestWithoutOutput(String testCaseFile, PdfAConformance pdfaConformance) throws Exception {
+		runTestWithoutOutput(testCaseFile, pdfaConformance, false);
 	}
 
 	/**
 	 * Will silently let ALL log messages through.
 	 */
 	public static void runTestWithoutOutputAndAllowWarnings(String testCaseFile) throws Exception {
-		runTestWithoutOutput(testCaseFile, true);
+		runTestWithoutOutput(testCaseFile, PdfAConformance.NONE, true);
 	}
 
-	private static void runTestWithoutOutput(String testCaseFile, boolean allowWarnings) throws Exception {
+	private static void runTestWithoutOutput(String testCaseFile, PdfAConformance pdfaConformance, boolean allowWarnings) throws Exception {
 		System.out.println("Trying to run: " + testCaseFile);
 
 		byte[] htmlBytes = IOUtils
@@ -166,14 +174,14 @@ public void log(String where, Level level, String msg) {
 			}
 		});
 
-		renderPDF(html, outputStream);
+		renderPDF(html, pdfaConformance, outputStream);
 
 		if (!warnings.isEmpty() && !allowWarnings) {
 			throw warnings.get(0);
 		}
 	}
 
-	private static void renderPDF(String html, OutputStream outputStream) throws Exception {
+	private static void renderPDF(String html, PdfAConformance pdfaConformance, OutputStream outputStream) throws Exception {
 		try {
 			PdfRendererBuilder builder = new PdfRendererBuilder();
 			builder.useUnicodeBidiSplitter(new ICUBidiSplitter.ICUBidiSplitterFactory());
@@ -183,6 +191,7 @@ private static void renderPDF(String html, OutputStream outputStream) throws Exc
 			builder.useMathMLDrawer(new MathMLDrawer());
 			builder.addDOMMutator(LaTeXDOMMutator.INSTANCE);
 			builder.useObjectDrawerFactory(buildObjectDrawerFactory());
+                        builder.usePdfAConformance(pdfaConformance);
 
 			builder.withHtmlContent(html, TestcaseRunner.class.getResource("/testcases/").toString());
 			builder.toStream(outputStream);
@@ -241,7 +250,7 @@ private static void runTestCase(String testCaseFile) throws Exception {
 		String testCaseOutputFile = outDir + "/" + testCaseFile + ".pdf";
 		String testCaseOutputPNGFile = outDir + "/" + testCaseFile + ".png";
 		FileOutputStream outputStream = new FileOutputStream(testCaseOutputFile);
-		renderPDF(html, outputStream);
+		renderPDF(html, PdfAConformance.NONE, outputStream);
 		System.out.println("Wrote " + testCaseOutputFile);
 
 		renderPNG(html, testCaseOutputPNGFile);

openhtmltopdf-examples/src/main/resources/testcases/icon-font.html

@@ -0,0 +1,19 @@
+<html>
+    <head>
+        <style>
+            @font-face {
+                src: url(fonts/MaterialIcons-Regular.ttf);
+                font-family: 'MaterialIcons';
+            }
+            body {
+                font-family: serif;
+            }
+            .material-icon {
+                font-family: 'MaterialIcons';
+            }
+        </style>
+    </head>
+    <body>
+        <div style="display: table-cell;"><span class="material-icon">&#xe87c;</span></div>
+    </body>
+</html>

openhtmltopdf-examples/src/test/java/com/openhtmltopdf/testcases/IconFontTest.java

@@ -0,0 +1,25 @@
+package com.openhtmltopdf.testcases;
+
+import com.openhtmltopdf.pdfboxout.PdfRendererBuilder.PdfAConformance;
+import org.junit.Test;
+
+public class IconFontTest {
+
+    /**
+     * Icon fonts sometimes contain no space character. They should still be
+     * usable without warnings.
+     */
+    @Test
+    public void testFontWithoutSpace() throws Exception {
+        TestcaseRunner.runTestWithoutOutput("icon-font");
+    }
+
+    /**
+     * Should also work for PDF/A.
+     */
+    @Test
+    public void testFontWithoutSpacePdfA() throws Exception {
+        TestcaseRunner.runTestWithoutOutput("icon-font", PdfAConformance.PDFA_2_U);
+    }
+
+}