Convert to component based architecture

src/framework/page-element.ts

@@ -0,0 +1,16 @@
+export abstract class PageElement {
+  // Getter and setter accessors would have to agree in visibility
+  public getElement(): HTMLElement {
+    return this._element;
+  }
+  private _element: HTMLElement;
+  protected setElement(value: HTMLElement) {
+    this._element = value;
+  }
+
+  protected constructor(private children: Array<PageElement> = []) {}
+
+  public onAfterLoad(parent: HTMLElement) {
+    this.children.forEach(c => c.onAfterLoad(this.getElement()));
+  }
+}