Add OutlineLevel Paragraph property

src/file/paragraph/links/index.ts

@@ -1,2 +1,3 @@
 export * from "./hyperlink";
 export * from "./bookmark";
+export * from "./outline-level";

src/file/paragraph/links/outline-level.spec.ts

@@ -0,0 +1,23 @@
+import { assert } from "chai";
+
+import { Utility } from "tests/utility";
+
+import { OutlineLevel } from "./outline-level";
+
+describe("ParagraphOutlineLevel", () => {
+    let outlineLevel: OutlineLevel;
+
+    describe("#constructor()", () => {
+        it("should create an outlineLevel with given value", () => {
+            outlineLevel = new OutlineLevel("0");
+            const newJson = Utility.jsonify(outlineLevel);
+            assert.equal(newJson.root[0].root.val, "0");
+        });
+
+        it("should create an outlineLevel with blank val", () => {
+            outlineLevel = new OutlineLevel("");
+            const newJson = Utility.jsonify(outlineLevel);
+            assert.equal(newJson.root[0].root.val, "");
+        });
+    });
+});

src/file/paragraph/links/outline-level.ts

@@ -0,0 +1,17 @@
+// http://officeopenxml.com/WPparagraph.php
+import { Attributes, XmlComponent } from "file/xml-components";
+
+export class OutlineLevel extends XmlComponent {
+    public readonly level: string;
+
+    constructor(level: string) {
+        super("w:outlineLvl");
+        this.level = level;
+        this.root.push(
+            new Attributes({
+                val: level,
+            }),
+        );
+    }
+
+}

src/file/paragraph/paragraph.spec.ts

@@ -666,4 +666,18 @@ describe("Paragraph", () => {
             });
         });
     });
+
+    describe("#outlineLevel", () => {
+        it("should set paragraph outline level to the given value", () => {
+            paragraph.outlineLevel("0");
+            const tree = new Formatter().format(paragraph);
+            expect(tree).to.deep.equal({
+                "w:p": [
+                    {
+                        "w:pPr": [{ "w:outlineLvl": [{ _attr: { "w:val": "0" } }] }],
+                    },
+                ],
+            });
+        });
+    });
 });

src/file/paragraph/paragraph.ts

@@ -14,7 +14,7 @@ import { ContextualSpacing, ISpacingProperties, Spacing } from "./formatting/spa
 import { Style } from "./formatting/style";
 import { CenterTabStop, LeaderType, LeftTabStop, MaxRightTabStop, RightTabStop } from "./formatting/tab-stop";
 import { NumberProperties } from "./formatting/unordered-list";
-import { Bookmark, Hyperlink } from "./links";
+import { Bookmark, Hyperlink, OutlineLevel } from "./links";
 import { ParagraphProperties } from "./properties";
 import { PictureRun, Run, SequentialIdentifier, TextRun } from "./run";
 
@@ -245,4 +245,9 @@ export class Paragraph extends XmlComponent {
         this.root.push(new SequentialIdentifier(identifier));
         return this;
     }
+
+    public outlineLevel(level: string): Paragraph {
+        this.properties.push(new OutlineLevel(level));
+        return this;
+    }
 }