Support cantSplit for table row (#730)

* Initial cantSplit support: add CantSplit element

* Initial cantSplit support: add cant_split() to XMLBuilder

* Initial cantSplit support: add cant_split() to TableRow element

* Initial cantSplit support: add cant_split() to TableRowProperty element

* Initial cantSplit support: add cant_split module

docx-core/src/documents/elements/cant_split.rs

@@ -0,0 +1,21 @@
+use serde::{Serialize, Serializer};
+
+use crate::{xml_builder::XMLBuilder, BuildXML};
+
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct CantSplit {}
+impl BuildXML for CantSplit {
+    fn build(&self) -> Vec<u8> {
+        let b = XMLBuilder::new();
+        b.cant_split().build()
+    }
+}
+
+impl Serialize for CantSplit {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str("cantSplit")
+    }
+}

docx-core/src/documents/elements/mod.rs

@@ -8,6 +8,7 @@ mod bold_cs;
 mod bookmark_end;
 mod bookmark_start;
 mod br;
+mod cant_split;
 mod caps;
 mod cell_margins;
 mod character_spacing;
@@ -144,6 +145,7 @@ pub use bold_cs::*;
 pub use bookmark_end::*;
 pub use bookmark_start::*;
 pub use br::*;
+pub use cant_split::*;
 pub use caps::*;
 pub use cell_margins::*;
 pub use character_spacing::*;

docx-core/src/documents/elements/table_row.rs

@@ -77,6 +77,11 @@ impl TableRow {
         self.property = self.property.insert(i);
         self
     }
+
+    pub fn cant_split(mut self) -> TableRow {
+        self.property = self.property.cant_split();
+        self
+    }
 }
 
 impl BuildXML for TableRow {
@@ -130,4 +135,13 @@ mod tests {
             r#"{"cells":[{"type":"tableCell","data":{"children":[],"property":{"width":null,"borders":null,"gridSpan":null,"verticalMerge":null,"verticalAlign":null,"textDirection":null,"shading":null},"hasNumbering":false}}],"hasNumbering":false,"property":{"gridAfter":null,"widthAfter":null,"gridBefore":null,"widthBefore":null}}"#
         );
     }
+
+    #[test]
+    fn test_row_cant_split() {
+        let b = TableRow::new(vec![TableCell::new()]).cant_split().build();
+        assert_eq!(
+            str::from_utf8(&b).unwrap(),
+            r#"<w:tr><w:trPr><w:cantSplit /></w:trPr><w:tc><w:tcPr /><w:p w14:paraId="12345678"><w:pPr><w:rPr /></w:pPr></w:p></w:tc></w:tr>"#
+        );
+    }
 }

docx-core/src/documents/elements/table_row_property.rs

@@ -19,6 +19,8 @@ pub struct TableRowProperty {
     pub del: Option<Delete>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub ins: Option<Insert>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub cant_split: Option<CantSplit>,
 }
 
 impl TableRowProperty {
@@ -65,15 +67,20 @@ impl TableRowProperty {
         self.ins = Some(i);
         self
     }
-}
 
+    pub fn cant_split(mut self) -> Self {
+        self.cant_split = Some(CantSplit::default());
+        self
+    }
+}
 
 impl BuildXML for TableRowProperty {
     fn build(&self) -> Vec<u8> {
         let mut b = XMLBuilder::new()
             .open_table_row_property()
             .add_optional_child(&self.del)
-            .add_optional_child(&self.ins);
+            .add_optional_child(&self.ins)
+            .add_optional_child(&self.cant_split);
         if let Some(h) = self.row_height {
             b = b.table_row_height(
                 &format!("{}", h),
@@ -97,4 +104,13 @@ mod tests {
         let b = TableRowProperty::new().build();
         assert_eq!(str::from_utf8(&b).unwrap(), r#"<w:trPr />"#);
     }
+
+    #[test]
+    fn test_cant_split() {
+        let b = TableRowProperty::new().cant_split().build();
+        assert_eq!(
+            str::from_utf8(&b).unwrap(),
+            r#"<w:trPr><w:cantSplit /></w:trPr>"#
+        );
+    }
 }

docx-core/src/xml_builder/elements.rs

@@ -400,6 +400,8 @@ impl XMLBuilder {
         "w:author",
         "w:date"
     );
+    // cantSplit for table row
+    closed!(cant_split, "w:cantSplit");
 
     closed!(bookmark_start, "w:bookmarkStart", "w:id", "w:name");
     closed!(bookmark_end, "w:bookmarkEnd", "w:id");