add parent-ancestorcount-dom macro

core/modules/macros/parent-ancestorcount-dom.js

@@ -0,0 +1,26 @@
+/*\
+title: $:/core/modules/macros/parent-ancestorcount-dom.js
+type: application/javascript
+module-type: macro
+
+Macro to return the parent widget this.ancestors variable
+
+\*/
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+/*
+Information about this macro
+*/
+
+exports.name = "parent-ancestorcount-dom";
+
+exports.params = [];
+
+/*
+Run the macro
+*/
+exports.run = function() {
+	return (this.parentWidget) ? this.parentWidget.getAncestorCountDom() + "" : "";
+};