Process white-space css property for page margin boxes content

DEVSIX-1905

Author: yulian-gaponenko

src/main/java/com/itextpdf/html2pdf/attach/impl/layout/PageContextProcessor.java

@@ -2,15 +2,15 @@
     This file is part of the iText (R) project.
     Copyright (c) 1998-2017 iText Group NV
     Authors: Bruno Lowagie, Paulo Soares, et al.
-    
+
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License version 3
     as published by the Free Software Foundation with the addition of the
     following permission added to Section 15 as permitted in Section 7(a):
     FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
     ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
     OF THIRD PARTY RIGHTS
-    
+
     This program is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     or FITNESS FOR A PARTICULAR PURPOSE.
@@ -20,23 +20,23 @@ This file is part of the iText (R) project.
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA, 02110-1301 USA, or download the license from the following URL:
     http://itextpdf.com/terms-of-use/
-    
+
     The interactive user interfaces in modified source and object code versions
     of this program must display Appropriate Legal Notices, as required under
     Section 5 of the GNU Affero General Public License.
-    
+
     In accordance with Section 7(b) of the GNU Affero General Public License,
     a covered work must retain the producer line in every PDF that is created
     or manipulated using iText.
-    
+
     You can be released from the requirements of the license by purchasing
     a commercial license. Buying such a license is mandatory as soon as you
     develop commercial activities involving the iText software without
     disclosing the source code of your own applications.
     These activities include: offering paid services to customers as an ASP,
     serving PDFs on the fly in a web application, shipping iText with a closed
     source product.
-    
+
     For more information, please contact iText Software Corp. at this
     address: sales@itextpdf.com
  */
@@ -490,6 +490,7 @@ private void createMarginBoxesElements(List<PageMarginBoxContextNode> resolvedPa
 
             // TODO it would be great to reuse DefaultHtmlProcessor, but it seems there is no convenient way of doing so, and maybe it would be an overkill
             IElementNode dummyMarginBoxNode = new JsoupElementNode(new Element(Tag.valueOf(TagConstants.DIV), ""));
+            dummyMarginBoxNode.setStyles(boxStyles);
             DivTagWorker marginBoxWorker = new DivTagWorker(dummyMarginBoxNode, context);
             for (int i = 0; i < marginBoxContentNode.childNodes().size(); i++) {
                 INode childNode = marginBoxContentNode.childNodes().get(i);

src/test/java/com/itextpdf/html2pdf/css/PageRuleTest.java

@@ -150,7 +150,23 @@ public void marginBoxTest04() throws IOException, InterruptedException {
         runTest("marginBoxTest04");
     }
 
-    private void runTest(String name) throws IOException, InterruptedException {
+
+    @Test
+    public void marginBoxMultilineTest01() throws IOException, InterruptedException {
+        runTest("marginBoxMultilineTest01");
+    }
+
+    @Test
+    public void marginBoxMultilineTest02() throws IOException, InterruptedException {
+        runTest("marginBoxMultilineTest02");
+    }
+
+    @Test
+    public void marginBoxMultilineTest03() throws IOException, InterruptedException {
+        runTest("marginBoxMultilineTest03");
+    }
+    
+	private void runTest(String name) throws IOException, InterruptedException {
         String htmlPath = sourceFolder + name + ".html";
         String pdfPath = destinationFolder + name + ".pdf";
         String cmpPdfPath = sourceFolder + "cmp_" + name + ".pdf";

src/test/java/com/itextpdf/html2pdf/css/PseudoElementsTest.java

@@ -174,6 +174,11 @@ public void escapedStringTest04() throws IOException, InterruptedException {
         runTest("escapedStringTest04");
     }
 
+    @Test
+    public void escapedStringTest05() throws IOException, InterruptedException {
+        runTest("escapedStringTest05");
+    }
+
     @Test
     @LogMessages(messages = @LogMessage(messageTemplate = LogMessageConstant.CONTENT_PROPERTY_INVALID, count = 5))
     public void attrTest01() throws IOException, InterruptedException {

src/test/resources/com/itextpdf/html2pdf/css/PageRuleTest/cmp_marginBoxMultilineTest01.pdf

@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style type="text/css">
+	@page {
+		font-size: 8pt;
+		@top-left {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Header mulitline attempt \r is it a new line?";
+		}
+		@top-center {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Header mulitline attempt \r\n is it a new line?";
+		}
+		@top-right {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Header mulitline attempt \n is it a new line?";
+		}
+		@bottom-left {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Footer mulitline attempt \000 ais it a new line?";
+		}
+		@bottom-center {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Footer mulitline attempt \a is it a new line?";
+		}
+		@bottom-right {
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Footer mulitline attempt \u000a is it a new line?";
+		}
+	}
+</style>
+</head>
+<body>
+<div style="background-color: yellow;">
+No new lines should be processed with default value of white-space css property.
+</div>
+</body>
+</html>

src/test/resources/com/itextpdf/html2pdf/css/PageRuleTest/cmp_marginBoxMultilineTest02.pdf

@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style type="text/css">
+	@page {
+		font-size: 8pt;
+		white-space: pre;
+		@top-left {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Header mulitline attempt \r is it a new line?";
+		}
+		@top-center {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Header mulitline attempt \r\n is it a new line?";
+		}
+		@top-right {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Header mulitline attempt \n is it a new line?";
+		}
+		@bottom-left {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Footer mulitline attempt \000a is it a new line?";
+		}
+		@bottom-center {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Footer mulitline attempt \a is it a new line?";
+		}
+		@bottom-right {
+			background-color: #ccc;
+			border: solid 1pt;
+			content: "Footer mulitline attempt \u000a is it a new line?";
+		}
+	}
+</style>
+</head>
+<body>
+<div style="background-color: yellow;">
+Only @bottom-center and @bottom-left margin boxes are expected to contain multiline content.
+All margin boxes has white-space property set to `pre`.
+</div>
+</body>
+</html>

src/test/resources/com/itextpdf/html2pdf/css/PageRuleTest/cmp_marginBoxMultilineTest03.pdf

@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+<style type="text/css">
+	@page {
+		font-size: 8pt;
+		size: 8in 2in;
+		@bottom-center {
+			white-space: pre;
+			background-color: #ccc;	
+			border: solid 1pt;
+			content: "Footer mulitline attempt \a is it a new line?";
+		}
+	}
+</style>
+</head>
+<body>
+<div style="background-color: yellow;">
+@bottom-center margin box is expected to contain multiline content.
+White-space property set to `pre`.
+</div>
+</body>
+</html>