added #createParagraphStyle method to Styles

ts/styles/index.ts

@@ -4,6 +4,7 @@ import { DocumentDefaults } from "./defaults";
 import { LatentStyles } from "./latent-styles";
 import { LatentStyleException } from "./latent-styles/exceptions";
 import { LatentStyleExceptionAttributes } from "./latent-styles/exceptions/attributes";
+import { ParagraphStyle } from "./style";
 
 export class Styles extends XmlComponent {
 
@@ -34,4 +35,10 @@ export class Styles extends XmlComponent {
             element.clearVariables();
         });
     }
+
+    public createParagraphStyle(styleId: string, name?: string): ParagraphStyle {
+        const para = new ParagraphStyle(styleId, name);
+        this.push(para);
+        return para;
+    }
 }

ts/tests/stylesTest.ts

@@ -17,6 +17,33 @@ describe("Styles", () => {
             assert.equal(newJson.rootKey, "w:styles");
         });
     });
+
+    describe("#createParagraphStyle", () => {
+        it("should create a new paragraph style and push it onto this collection", () => {
+            const ps = styles.createParagraphStyle("pStyleId");
+            const tree = new Formatter().format(styles)["w:styles"].filter((x) => !x._attr);
+            expect(tree).to.deep.equal([{
+                "w:style": [
+                    {_attr: {"w:type": "paragraph", "w:styleId": "pStyleId"}},
+                    {"w:pPr": [{_attr: {}}]},
+                    {"w:rPr": []},
+                ],
+            }]);
+        });
+
+        it("should set the paragraph name if given", () => {
+            const ps = styles.createParagraphStyle("pStyleId", "Paragraph Style");
+            const tree = new Formatter().format(styles)["w:styles"].filter((x) => !x._attr);
+            expect(tree).to.deep.equal([{
+                "w:style": [
+                    {_attr: {"w:type": "paragraph", "w:styleId": "pStyleId"}},
+                    {"w:name": [{_attr: {"w:val": "Paragraph Style"}}]},
+                    {"w:pPr": [{_attr: {}}]},
+                    {"w:rPr": []},
+                ],
+            }]);
+        });
+    });
 });
 
 describe("Style", () => {