Add arbitrary file repository

src/main/webapp/myPlugins/dtdesign.js

@@ -1,5 +1,5 @@
 const BACKEND = "http://localhost:5000";
-const EXPECTED_BACKEND_VERSION = 2; // expected backend version
+const EXPECTED_BACKEND_VERSION = 3; // expected backend version
 const SPARQL_SERVER   = "http://localhost:3030"
 const SPARQL_ENDPOINT = "/SystemDesignOntology2Layers/sparql"
 
@@ -444,12 +444,10 @@ fetch(BACKEND+"/version")
 
   }
 
-  const createUploadXoppDiv = createUploadDiv("xopp", "application/x-xopp,.xopp");
-  const createUploadCsvDiv = createUploadDiv("csv", "text/csv,.csv");
-
-  const refreshDrawioModels = createModelList("drawio", createSavePageDiv, "Open", modelName => loadPage(modelName));
-  const refreshXoppModels = createModelList("xopp", createUploadXoppDiv, "Download", createDownloadHandler("xopp"));
-  const refreshCsvModels = createModelList("csv", createUploadCsvDiv, "Download", createDownloadHandler("csv"));
+  createModelList("drawio", createSavePageDiv, "Open", modelName => loadPage(modelName));
+  createModelList("xopp", createUploadDiv("xopp", "application/x-xopp,.xopp"), "Download", createDownloadHandler("xopp"));
+  createModelList("csv", createUploadDiv("csv", "text/csv,.csv"), "Download", createDownloadHandler("csv"));
+  createModelList("file", createUploadDiv("file", ""), "Download", createDownloadHandler("file"));
 
   // Load a model and add it as a new page to the editor
   function loadPage(pageName) {
@@ -469,11 +467,6 @@ fetch(BACKEND+"/version")
     });
   }
 
-
-  // refreshDrawioModels();
-  // refreshXoppModels();
-  // refreshCsvModels();
-
   const wnd = new mxWindow("ModelVerse", wndDiv,
     getSetting("dialogPosX"), getSetting("dialogPosY"),
     getSetting("dialogWidth"), getSetting("dialogHeight"),