#2388 - Add default tab stop (#2470)

* #2388 - Check for undefined rather than falsey

* Add default tab stop

* Add back tab stop positions

* Add test for default tab stop

demo/75-tab-stops.ts

@@ -18,6 +18,7 @@ const receiptTabStops = [
 const twoTabStops = [{ type: TabStopType.RIGHT, position: TabStopPosition.MAX }];
 
 const doc = new Document({
+    defaultTabStop: 0,
     sections: [
         {
             properties: {},

src/file/core-properties/properties.ts

@@ -39,6 +39,7 @@ export interface IPropertiesOptions {
     readonly compatibility?: ICompatibilityOptions;
     readonly customProperties?: readonly ICustomPropertyOptions[];
     readonly evenAndOddHeaderAndFooters?: boolean;
+    readonly defaultTabStop?: number;
 }
 
 // <xs:element name="coreProperties" type="CT_CoreProperties"/>

src/file/file.ts

@@ -77,6 +77,7 @@ export class File {
             evenAndOddHeaders: options.evenAndOddHeaderAndFooters ? true : false,
             trackRevisions: options.features?.trackRevisions,
             updateFields: options.features?.updateFields,
+            defaultTabStop: options.defaultTabStop,
         });
 
         this.media = new Media();

src/file/paragraph/properties.ts

@@ -157,9 +157,9 @@ export class ParagraphProperties extends IgnoreIfEmptyXmlComponent {
          * Ensure there is only one w:tabs tag with multiple w:tab
          */
         const tabDefinitions: readonly TabStopDefinition[] = [
-            ...(options.rightTabStop ? [{ type: TabStopType.RIGHT, position: options.rightTabStop }] : []),
+            ...(options.rightTabStop !== undefined ? [{ type: TabStopType.RIGHT, position: options.rightTabStop }] : []),
             ...(options.tabStops ? options.tabStops : []),
-            ...(options.leftTabStop ? [{ type: TabStopType.LEFT, position: options.leftTabStop }] : []),
+            ...(options.leftTabStop !== undefined ? [{ type: TabStopType.LEFT, position: options.leftTabStop }] : []),
         ];
 
         if (tabDefinitions.length > 0) {

src/file/settings/settings.spec.ts

@@ -112,6 +112,23 @@ describe("Settings", () => {
             });
         });
 
+        it("should add defaultTabStop setting with version", () => {
+            const settings = new Settings({
+                defaultTabStop: 100,
+            });
+
+            const tree = new Formatter().format(settings);
+            expect(Object.keys(tree)).has.length(1);
+            expect(tree["w:settings"]).to.be.an("array");
+            expect(tree["w:settings"]).to.deep.include({
+                "w:defaultTabStop": {
+                    _attr: {
+                        "w:val": 100,
+                    },
+                },
+            });
+        });
+
         // TODO: Remove when deprecating compatibilityModeVersion
         it("should add compatibility setting with legacy version", () => {
             const settings = new Settings({

src/file/settings/settings.ts

@@ -1,4 +1,4 @@
-import { OnOffElement, XmlAttributeComponent, XmlComponent } from "@file/xml-components";
+import { NumberValueElement, OnOffElement, XmlAttributeComponent, XmlComponent } from "@file/xml-components";
 
 import { Compatibility, ICompatibilityOptions } from "./compatibility";
 
@@ -152,6 +152,7 @@ export interface ISettingsOptions {
     readonly trackRevisions?: boolean;
     readonly updateFields?: boolean;
     readonly compatibility?: ICompatibilityOptions;
+    readonly defaultTabStop?: number;
 }
 
 export class Settings extends XmlComponent {
@@ -198,6 +199,11 @@ export class Settings extends XmlComponent {
             this.root.push(new OnOffElement("w:updateFields", options.updateFields));
         }
 
+        // https://c-rex.net/samples/ooxml/e1/Part4/OOXML_P4_DOCX_defaultTabStop_topic_ID0EIXSX.html
+        if (options.defaultTabStop !== undefined) {
+            this.root.push(new NumberValueElement("w:defaultTabStop", options.defaultTabStop));
+        }
+
         this.root.push(
             new Compatibility({
                 ...(options.compatibility ?? {}),