now extends XmlComponent

ts/docx/document/body/columns.ts

@@ -1,15 +1,10 @@
 import {XmlComponent, Attributes} from "../../xml-components";
 
-export class Columns implements XmlComponent {
-    private cols: Array<XmlComponent>;
-    
-    xmlKeys = {
-        cols: 'w:cols'
-    }
+export class Columns extends XmlComponent {
 
     constructor() {
-        this.cols = new Array<XmlComponent>();
-        this.cols.push(new Attributes({
+        super("w:cols");
+        this.root.push(new Attributes({
             space: "708"
         }));
     }

ts/docx/document/body/doc-grid.ts

@@ -1,15 +1,10 @@
 import {XmlComponent, Attributes} from "../../xml-components";
 
-export class DocumentGrid implements XmlComponent {
-    private docGrid: Array<XmlComponent>;
-    
-    xmlKeys = {
-        docGrid: 'w:docGrid'
-    }
+export class DocumentGrid extends XmlComponent {
 
     constructor() {
-        this.docGrid = new Array<XmlComponent>();
-        this.docGrid.push(new Attributes({
+        super("w:docGrid");
+        this.root.push(new Attributes({
             linePitch: "360"
         }));
     }

ts/docx/document/body/index.ts

@@ -1,20 +1,15 @@
 import {XmlComponent, Attributes} from "../../xml-components";
 import {SectionProperties} from "./section-properties";
 
-export class Body implements XmlComponent {
-    private body: Array<XmlComponent>;
-
-    xmlKeys = {
-        body: 'w:body'
-    }
+export class Body extends XmlComponent {
 
     constructor() {
-        this.body = new Array<XmlComponent>();
-        //this.body.push(new SectionProperties()); not actually needed
+        super("w:body");
+        //this.root.push(new SectionProperties()); not actually needed
     }
 
     push(component: XmlComponent) {
-        //this.body.splice(this.body.length - 1, 0, component);
-        this.body.push(component);
+        //this.root.splice(this.body.length - 1, 0, component);
+        this.root.push(component);
     }
 }

ts/docx/document/body/page-margin.ts

@@ -1,15 +1,10 @@
 import {XmlComponent, Attributes} from "../../xml-components";
 
-export class PageMargin implements XmlComponent {
-    private pgMar: Array<XmlComponent>;
-    
-    xmlKeys = {
-        pgMar: 'w:pgMar'
-    }
+export class PageMargin extends XmlComponent {
 
     constructor() {
-        this.pgMar = new Array<XmlComponent>();
-        this.pgMar.push(new Attributes({
+        super("w:pgMar");
+        this.root.push(new Attributes({
             top: "1440",
             right: "1440",
             bottom: "1440",

ts/docx/document/body/page-size.ts

@@ -1,15 +1,10 @@
 import {XmlComponent, Attributes} from "../../xml-components";
 
-export class PageSize implements XmlComponent {
-    private pgSz: Array<XmlComponent>;
-    
-    xmlKeys = {
-        pgSz: 'w:pgSz'
-    }
+export class PageSize extends XmlComponent {
 
     constructor() {
-        this.pgSz = new Array<XmlComponent>();
-        this.pgSz.push(new Attributes({
+        super("w:pgSz");
+        this.root.push(new Attributes({
             w: "11906",
             h: "16838"
         }));

ts/docx/document/body/section-properties.ts

@@ -4,23 +4,18 @@ import {PageMargin} from "./page-margin";
 import {Columns} from "./columns";
 import {DocumentGrid} from "./doc-grid";
 
-export class SectionProperties implements XmlComponent {
-    private sectPr: Array<XmlComponent>;
-
-    xmlKeys = {
-        sectPr: 'w:sectPr'
-    }
+export class SectionProperties extends XmlComponent {
 
     constructor() {
-        this.sectPr = new Array<XmlComponent>();
-        this.sectPr.push(new Attributes({
+        super("w:sectPr");
+        this.root.push(new Attributes({
             rsidR: "00B64E8F",
             rsidRPr: "00D842E4",
             rsidSect: "000A6AD0"
         }));
-        this.sectPr.push(new PageSize());
-        this.sectPr.push(new PageMargin());
-        this.sectPr.push(new Columns());
-        this.sectPr.push(new DocumentGrid());
+        this.root.push(new PageSize());
+        this.root.push(new PageMargin());
+        this.root.push(new Columns());
+        this.root.push(new DocumentGrid());
     }
 }

ts/docx/document/index.ts

@@ -3,8 +3,7 @@ import {DocumentAttributes} from "../xml-components/document-attributes"
 import {Body} from "./body";
 import {Paragraph} from "../paragraph";
 
-export class Document implements XmlComponent {
-    private document: Array<XmlComponent>;
+export class Document extends XmlComponent {
     private body: Body;
     
     xmlKeys = {
@@ -13,8 +12,8 @@ export class Document implements XmlComponent {
     };
 
     constructor() {
-        this.document = new Array<XmlComponent>();
-        this.document.push(new DocumentAttributes({
+        super("w:document");
+        this.root.push(new DocumentAttributes({
             wpc: 'http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas',
             mc: 'http://schemas.openxmlformats.org/markup-compatibility/2006',
             o: 'urn:schemas-microsoft-com:office:office',
@@ -34,7 +33,7 @@ export class Document implements XmlComponent {
             Ignorable: 'w14 w15 wp14'
         }));
         this.body = new Body();
-        this.document.push(this.body);
+        this.root.push(this.body);
     }
 
     addParagraph(paragraph: Paragraph) {