From 500e1c20fe77c7ebd561e9f7d8c2b494ebdfced2 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 30 Nov 2024 11:36:24 +0000
Subject: Parse checked value of complex field checkbox

---
 lib/docx/body-reader.js        |  8 ++++----
 test/docx/body-reader.tests.js | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/lib/docx/body-reader.js b/lib/docx/body-reader.js
index 2726b76..5a27d2d 100644
--- a/lib/docx/body-reader.js
+++ b/lib/docx/body-reader.js
@@ -206,10 +206,10 @@ function BodyReader(options) {
             var checkboxElement = fldChar
                 .firstOrEmpty("w:ffData")
                 .firstOrEmpty("w:checkBox");
-            var defaultValue = readBooleanElement(
-                checkboxElement.first("w:default")
-            );
-            var checked = defaultValue;
+            var checkedElement = checkboxElement.first("w:checked");
+            var checked = checkedElement == null
+                ? readBooleanElement(checkboxElement.first("w:default"))
+                : readBooleanElement(checkedElement);
             return {type: "checkbox", checked: checked};
         }
 
diff --git a/test/docx/body-reader.tests.js b/test/docx/body-reader.tests.js
index 49c81b9..70b0057 100644
--- a/test/docx/body-reader.tests.js
+++ b/test/docx/body-reader.tests.js
@@ -579,6 +579,48 @@ test("checkboxes", {
 
         var paragraph = readXmlElementValue(paragraphXml);
 
+        assertThat(paragraph.children, contains(
+            isEmptyRun,
+            isEmptyRun,
+            isRun({
+                children: contains(
+                    isCheckbox({checked: equalTo(true)})
+                )
+            })
+        ));
+    },
+
+    "complex field checkbox with w:default=1 and w:checked=0 is unchecked": function() {
+        var paragraphXml = complexFieldCheckboxParagraph([
+            xml.element("w:checkBox", {}, [
+                xml.element("w:default", {"w:val": "1"}),
+                xml.element("w:checked", {"w:val": "0"})
+            ])
+        ]);
+
+        var paragraph = readXmlElementValue(paragraphXml);
+
+        assertThat(paragraph.children, contains(
+            isEmptyRun,
+            isEmptyRun,
+            isRun({
+                children: contains(
+                    isCheckbox({checked: equalTo(false)})
+                )
+            })
+        ));
+    },
+
+    "complex field checkbox with w:default=0 and w:checked=1 is checked": function() {
+        var paragraphXml = complexFieldCheckboxParagraph([
+            xml.element("w:checkBox", {}, [
+                xml.element("w:default", {"w:val": "0"}),
+                xml.element("w:checked", {"w:val": "1"})
+            ])
+        ]);
+
+        var paragraph = readXmlElementValue(paragraphXml);
+
         assertThat(paragraph.children, contains(
             isEmptyRun,
             isEmptyRun,
-- 
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