Add total number of pages in a section

demo/demo45.ts

@@ -0,0 +1,49 @@
+// Multiple sections with total number of pages in each section
+// Import from 'docx' rather than '../build' if you install from npm
+import * as fs from "fs";
+import { Document, Packer, PageNumberFormat, TextRun } from "../build";
+
+const doc = new Document();
+
+
+const header = doc.createHeader();
+header.createParagraph("Header on another page");
+const footer = doc.createFooter();
+footer.createParagraph("Foo Bar corp. ")
+    .center()
+    .addRun(new TextRun("Page Number: ").pageNumber())
+    .addRun(new TextRun(" to ").numberOfTotalPagesSection());
+
+doc.addSection({
+    headers: {
+        default: header,
+    },
+    footers: {
+        default: footer,
+    },
+    pageNumberStart: 1,
+    pageNumberFormatType: PageNumberFormat.DECIMAL,
+});
+
+doc.createParagraph("Section 1").pageBreak();
+doc.createParagraph("Section 1").pageBreak();
+
+doc.addSection({
+    headers: {
+        default: header,
+    },
+    footers: {
+        default: footer,
+    },
+    pageNumberStart: 1,
+    pageNumberFormatType: PageNumberFormat.DECIMAL,
+});
+
+doc.createParagraph("Section 2").pageBreak();
+doc.createParagraph("Section 2").pageBreak();
+
+const packer = new Packer();
+
+packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});

src/file/paragraph/run/page-number.spec.ts

@@ -2,7 +2,7 @@ import { expect } from "chai";
 
 import { Formatter } from "export/formatter";
 
-import { NumberOfPages, Page } from "./page-number";
+import { NumberOfPages, NumberOfPagesSection, Page } from "./page-number";
 
 describe("Page", () => {
     describe("#constructor()", () => {
@@ -21,3 +21,12 @@ describe("NumberOfPages", () => {
         });
     });
 });
+
+describe("NumberOfPagesSection", () => {
+    describe("#constructor()", () => {
+        it("uses the font name for both ascii and hAnsi", () => {
+            const tree = new Formatter().format(new NumberOfPagesSection());
+            expect(tree).to.deep.equal({ "w:instrText": [{ _attr: { "xml:space": "preserve" } }, "SECTIONPAGES"] });
+        });
+    });
+});

src/file/paragraph/run/page-number.ts

@@ -20,3 +20,11 @@ export class NumberOfPages extends XmlComponent {
         this.root.push("NUMPAGES");
     }
 }
+
+export class NumberOfPagesSection extends XmlComponent {
+    constructor() {
+        super("w:instrText");
+        this.root.push(new TextAttributes({ space: SpaceType.PRESERVE }));
+        this.root.push("SECTIONPAGES");
+    }
+}

src/file/paragraph/run/run.spec.ts

@@ -204,6 +204,21 @@ describe("Run", () => {
         });
     });
 
+    describe("#numberOfTotalPagesSection", () => {
+        it("should set the run to the RTL mode", () => {
+            run.numberOfTotalPagesSection();
+            const tree = new Formatter().format(run);
+            expect(tree).to.deep.equal({
+                "w:r": [
+                    { "w:fldChar": { _attr: { "w:fldCharType": "begin" } } },
+                    { "w:instrText": [{ _attr: { "xml:space": "preserve" } }, "SECTIONPAGES"] },
+                    { "w:fldChar": { _attr: { "w:fldCharType": "separate" } } },
+                    { "w:fldChar": { _attr: { "w:fldCharType": "end" } } },
+                ],
+            });
+        });
+    });
+
     describe("#pageNumber", () => {
         it("should set the run to the RTL mode", () => {
             run.pageNumber();

src/file/paragraph/run/run.ts

@@ -14,7 +14,7 @@ import {
     SizeComplexScript,
     Strike,
 } from "./formatting";
-import { NumberOfPages, Page } from "./page-number";
+import { NumberOfPages, NumberOfPagesSection, Page } from "./page-number";
 import { RunProperties } from "./properties";
 import { RunFonts } from "./run-fonts";
 import { SubScript, SuperScript } from "./script";
@@ -92,6 +92,14 @@ export class Run extends XmlComponent {
         return this;
     }
 
+    public numberOfTotalPagesSection(): Run {
+        this.root.push(new Begin());
+        this.root.push(new NumberOfPagesSection());
+        this.root.push(new Separate());
+        this.root.push(new End());
+        return this;
+    }
+
     public smallCaps(): Run {
         this.properties.push(new SmallCaps());
         return this;