N°6765 Avoid behat scenario loading issues on portal modal (#569)

- New CombodoJsActivity API
- Replace existing calls in NiceWebPage (ready scripts)
- Add calls in ready block in portal object create template (used in both create and edit)

js/utils.js

@@ -994,6 +994,34 @@ const CombodoJSConsole = {
 	}
 }
 
+/**
+ * Helper to reflect ongoing JS activity to other processes like BeHat
+ * @api
+ * @since 3.0.4 3.1.1 3.2.0 N°6765
+ */
+const CombodoJsActivity = {
+	BODY_DATA_ATTR_NAME_READY: "data-ready-scripts",
+
+	/**
+	 * Counter so that we set the flag as done only on the last call
+	 * @type number
+	 */
+	iOngoingScriptsCount: 0,
+
+	AddOngoingScript: function() {
+		this.iOngoingScriptsCount++;
+		$("body").attr(this.BODY_DATA_ATTR_NAME_READY, "start");
+	},
+
+	RemoveOngoingScript: function() {
+		this.iOngoingScriptsCount--;
+
+		if (this.iOngoingScriptsCount < 1) {
+			$("body").attr(this.BODY_DATA_ATTR_NAME_READY, "done");
+		}
+	}
+}
+
 /**
  * Helper to Sanitize string
  *