From 777512b73d0c9807ad654acaccacf587f4a9807a Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Mon, 30 Dec 2024 10:05:30 +0000
Subject: Convert SDT checkboxes to checkbox inputs

---
 lib/docx/body-reader.js        | 20 +++++++++++++++++++-
 lib/docx/office-xml-reader.js  |  5 ++++-
 test/docx/body-reader.tests.js | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+), 2 deletions(-)

diff --git a/lib/docx/body-reader.js b/lib/docx/body-reader.js
index 3e97d3e..e78c2c4 100644
--- a/lib/docx/body-reader.js
+++ b/lib/docx/body-reader.js
@@ -119,6 +119,10 @@ function BodyReader(options) {
         }
     }
 
+    function readBooleanAttributeValue(value) {
+        return value !== "false" && value !== "0";
+    }
+
     function readHighlightValue(value) {
         if (!value || value === "none") {
             return null;
@@ -381,7 +385,21 @@ function BodyReader(options) {
         },
 
         "w:sdt": function(element) {
-            return readXmlElements(element.firstOrEmpty("w:sdtContent").children);
+            var checkbox = element
+                .firstOrEmpty("w:sdtPr")
+                .first("wordml:checkbox");
+
+            if (checkbox) {
+                var checkedElement = checkbox.first("wordml:checked");
+                var isChecked = !!checkedElement && readBooleanAttributeValue(
+                    checkedElement.attributes["wordml:val"]
+                );
+                return elementResult(documents.checkbox({
+                    checked: isChecked
+                }));
+            } else {
+                return readXmlElements(element.firstOrEmpty("w:sdtContent").children);
+            }
         },
 
         "w:ins": readChildElements,
diff --git a/lib/docx/office-xml-reader.js b/lib/docx/office-xml-reader.js
index f076e2c..43e5250 100644
--- a/lib/docx/office-xml-reader.js
+++ b/lib/docx/office-xml-reader.js
@@ -27,8 +27,11 @@ var xmlNamespaceMap = {
     "http://schemas.openxmlformats.org/package/2006/relationships": "relationships",
     "http://schemas.openxmlformats.org/markup-compatibility/2006": "mc",
     "urn:schemas-microsoft-com:vml": "v",
-    "urn:schemas-microsoft-com:office:word": "office-word"
+    "urn:schemas-microsoft-com:office:word": "office-word",
 
+    // [MS-DOCX]: Word Extensions to the Office Open XML (.docx) File Format
+    // https://learn.microsoft.com/en-us/openspecs/office_standards/ms-docx/b839fe1f-e1ca-4fa6-8c26-5954d0abbccd
+    "http://schemas.microsoft.com/office/word/2010/wordml": "wordml"
 };
 
 
diff --git a/test/docx/body-reader.tests.js b/test/docx/body-reader.tests.js
index ece3af8..96f4922 100644
--- a/test/docx/body-reader.tests.js
+++ b/test/docx/body-reader.tests.js
@@ -684,6 +684,46 @@ test("checkboxes", {
                 )
             })
         ));
+    },
+
+    "structured document tag checkbox without checked is not checked": function() {
+        var sdtXml = xml.element("w:sdt", {}, [
+            xml.element("w:sdtPr", {}, [
+                xml.element("wordml:checkbox")
+            ])
+        ]);
+
+        var result = readXmlElementValue(sdtXml);
+
+        assertThat(result, isCheckbox({checked: equalTo(false)}));
+    },
+
+    "structured document tag checkbox with checked=0 is not checked": function() {
+        var sdtXml = xml.element("w:sdt", {}, [
+            xml.element("w:sdtPr", {}, [
+                xml.element("wordml:checkbox", {}, [
+                    xml.element("wordml:checked", {"wordml:val": "0"})
+                ])
+            ])
+        ]);
+
+        var result = readXmlElementValue(sdtXml);
+
+        assertThat(result, isCheckbox({checked: equalTo(false)}));
+    },
+
+    "structured document tag checkbox with checked=1 is checked": function() {
+        var sdtXml = xml.element("w:sdt", {}, [
+            xml.element("w:sdtPr", {}, [
+                xml.element("wordml:checkbox", {}, [
+                    xml.element("wordml:checked", {"wordml:val": "1"})
+                ])
+            ])
+        ]);
+
+        var result = readXmlElementValue(sdtXml);
+
+        assertThat(result, isCheckbox({checked: equalTo(true)}));
     }
 });
 
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