From d5f51423cd58e17c81cb52b1471670d66a1de233 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 20 Feb 2016 11:35:56 +0000
Subject: Support conversion of images

---
 src/main/java/org/zwobble/mammoth/Mammoth.java     | 27 +++++++++++----
 .../org/zwobble/mammoth/docx/DocumentReader.java   | 38 +++++++++-------------
 .../org/zwobble/mammoth/tests/MammothTests.java    |  7 ++++
 3 files changed, 44 insertions(+), 28 deletions(-)

diff --git a/src/main/java/org/zwobble/mammoth/Mammoth.java b/src/main/java/org/zwobble/mammoth/Mammoth.java
index 6017825..7c1d9c8 100644
--- a/src/main/java/org/zwobble/mammoth/Mammoth.java
+++ b/src/main/java/org/zwobble/mammoth/Mammoth.java
@@ -1,16 +1,21 @@
 package org.zwobble.mammoth;
 
+import com.google.common.base.Function;
 import com.google.common.collect.Iterables;
 import org.zwobble.mammoth.documents.DocumentElement;
 import org.zwobble.mammoth.documents.HasChildren;
 import org.zwobble.mammoth.documents.Paragraph;
 import org.zwobble.mammoth.documents.Text;
+import org.zwobble.mammoth.docx.DocxFile;
+import org.zwobble.mammoth.docx.ZippedDocxFile;
 import org.zwobble.mammoth.html.Html;
 import org.zwobble.mammoth.results.Result;
 import org.zwobble.mammoth.util.Casts;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.List;
+import java.util.zip.ZipFile;
 
 import static org.zwobble.mammoth.docx.DocumentReader.readDocument;
 import static org.zwobble.mammoth.util.MammothLists.list;
@@ -41,15 +46,25 @@ public class Mammoth {
     }
 
     public static Result<String> convertToHtml(File file, Options options) {
-        return readDocument(file)
-            .map(nodes -> DocumentConverter.convertToHtml(options.idPrefix, options.preserveEmptyParagraphs, nodes))
-            .map(Html::stripEmpty)
-            .map(Html::collapse)
-            .map(Html::write);
+        return withDocxFile(file, zipFile ->
+            readDocument(zipFile)
+                .map(nodes -> DocumentConverter.convertToHtml(options.idPrefix, options.preserveEmptyParagraphs, nodes))
+                .map(Html::stripEmpty)
+                .map(Html::collapse)
+                .map(Html::write));
     }
 
     public static Result<String> extractRawText(File file) {
-        return readDocument(file).map(Mammoth::extractRawTextOfChildren);
+        return withDocxFile(file, zipFile ->
+            readDocument(zipFile).map(Mammoth::extractRawTextOfChildren));
+    }
+
+    private static <T> T withDocxFile(File file, Function<DocxFile, T> function) {
+        try (DocxFile zipFile = new ZippedDocxFile(new ZipFile(file))) {
+            return function.apply(zipFile);
+        } catch (IOException e) {
+            throw new UnsupportedOperationException("Should return a result of failure");
+        }
     }
 
     private static String extractRawTextOfChildren(HasChildren parent) {
diff --git a/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java b/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
index e361ac3..6d5af48 100644
--- a/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
+++ b/src/main/java/org/zwobble/mammoth/docx/DocumentReader.java
@@ -6,10 +6,8 @@ import org.zwobble.mammoth.results.Result;
 import org.zwobble.mammoth.util.MammothLists;
 import org.zwobble.mammoth.xml.XmlElement;
 
-import java.io.File;
 import java.io.IOException;
 import java.util.Optional;
-import java.util.zip.ZipFile;
 
 import static org.zwobble.mammoth.util.MammothLists.list;
 
@@ -19,26 +17,22 @@ public class DocumentReader {
         BodyXmlReader forName(String name);
     }
 
-    public static Result<Document> readDocument(File file) {
-        try (DocxFile zipFile = new ZippedDocxFile(new ZipFile(file))) {
-            Styles styles = readStyles(zipFile);
-            Numbering numbering = Numbering.EMPTY;
-            ContentTypes contentTypes = ContentTypes.DEFAULT;
-            FileReader fileReader = uri -> {
-                throw new UnsupportedOperationException();
-            };
-            BodyReaders bodyReaders = name -> {
-                Relationships relationships = readRelationships(zipFile, name);
-                return new BodyXmlReader(styles, numbering, relationships, contentTypes, zipFile, fileReader);
-            };
-            return readNotes(zipFile, bodyReaders)
-                .flatMap(notes -> {
-                    DocumentXmlReader reader = new DocumentXmlReader(bodyReaders.forName("document"), notes);
-                    return reader.readElement(parseOfficeXml(zipFile, "word/document.xml"));
-                });
-        } catch (IOException e) {
-            throw new UnsupportedOperationException("Should return a result of failure");
-        }
+    public static Result<Document> readDocument(DocxFile zipFile) {
+        Styles styles = readStyles(zipFile);
+        Numbering numbering = Numbering.EMPTY;
+        ContentTypes contentTypes = ContentTypes.DEFAULT;
+        FileReader fileReader = uri -> {
+            throw new UnsupportedOperationException();
+        };
+        BodyReaders bodyReaders = name -> {
+            Relationships relationships = readRelationships(zipFile, name);
+            return new BodyXmlReader(styles, numbering, relationships, contentTypes, zipFile, fileReader);
+        };
+        return readNotes(zipFile, bodyReaders)
+            .flatMap(notes -> {
+                DocumentXmlReader reader = new DocumentXmlReader(bodyReaders.forName("document"), notes);
+                return reader.readElement(parseOfficeXml(zipFile, "word/document.xml"));
+            });
     }
 
     private static Result<Notes> readNotes(DocxFile file, BodyReaders bodyReaders) {
diff --git a/src/test/java/org/zwobble/mammoth/tests/MammothTests.java b/src/test/java/org/zwobble/mammoth/tests/MammothTests.java
index fb88ee2..0a61661 100644
--- a/src/test/java/org/zwobble/mammoth/tests/MammothTests.java
+++ b/src/test/java/org/zwobble/mammoth/tests/MammothTests.java
@@ -39,6 +39,13 @@ public class MammothTests {
             deepEquals(success("<p></p>")));
     }
 
+    @Test
+    public void inlineImagesAreIncludedInOutput() {
+        assertThat(
+            convertToHtml("tiny-picture.docx"),
+            deepEquals(success("<p><img src=\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAIAAAACUFjqAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAOvgAADr4B6kKxwAAAABNJREFUKFNj/M+ADzDhlWUYqdIAQSwBE8U+X40AAAAASUVORK5CYII=\" /></p>")));
+    }
+
     @Test
     public void footnotesAreAppendedToText() {
         assertThat(
-- 
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