Preserve messages in Converter

2 files changed, 13 insertions, 2 deletions

diff --git a/lib/docx-reader.js b/lib/docx-reader.js
index b1e5627..e01d253 100644
--- a/lib/docx-reader.js
+++ b/lib/docx-reader.js
@@ -146,6 +146,12 @@ Result.prototype.map = function(func) {
     return new Result(func(this.value), this.messages);
 };
 
+Result.prototype.mapThen = function(func) {
+    return func(this.value).then(function(resultValue) {
+        return new Result(resultValue, this.messages);
+    });
+};
+
 function warning(message) {
     return {
         type: "warning",
diff --git a/lib/index.js b/lib/index.js
index 83f1572..96ba751 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -19,7 +19,12 @@ function Converter(options) {
 Converter.prototype.convertToHtml = function(docxFile) {
     var documentConverter = this._documentConverter;
     return docxReader.read(docxFile)
-        .then(function(result) {
-            return documentConverter.convertToHtml(result.document);
+        .then(function(documentResult) {
+            return documentResult.mapThen(function(document) {
+                return documentConverter.convertToHtml(document);
+            });
+        }).then(function(result) {
+            result.html = result.value.html;
+            return result;
         });
 }