verify overlay type in frontend

CHANGELOG

 minerva (13.2.0) stable; urgency=medium
-  * Bug fix:search by drugs didn't check synonyms in chembl database 
+  * Bug fix: search by drugs didn't check synonyms in chembl database 
+  * Bug fix: verification of overlay type added (#917) 
 
  -- Piotr Gawron <piotr.gawron@uni.lu>  Wed, 21 Aug 2019 17:00:00 +0200
 

frontend-js/src/main/js/gui/AddOverlayDialog.js

@@ -163,6 +163,9 @@ AddOverlayDialog.prototype.processFile = function (file) {
             descriptionInput.value = overlay.getDescription();
           }
           if (overlay.getType() !== undefined) {
+            if ($("option[value='" + overlay.getType() + "']", typeSelect).length === 0) {
+              GuiConnector.warn("Invalid type: " + overlay.getType());
+            }
             typeSelect.val(overlay.getType());
           }
           if (overlayParser.containsMixedNewLineCharacters(evt.target.result)) {