ayanova/src/api/gzutil.js

@@ -267,6 +267,9 @@ export default {
   // @return {string} A new string with the spliced substring.
   stringSplice: function(source, start, delCount, newSubStr) {
     if (source == null || source == "") {
+      if (newSubStr) {
+        return newSubStr;
+      }
       return "";
     }
     return (
@@ -339,6 +342,10 @@ export default {
       );
       return "fa-file";
     }
+
+    if (!mimeType) {
+      mimeType = "";
+    }
     mimeType = mimeType.toLowerCase();
 
     let iconFromExtension = extensions[extension];
@@ -355,6 +362,15 @@ export default {
     //   "gzutil:iconForFile -> No icon for file:" + fileName + " Mime:" + mimeType
     // );
     return "fa-file";
+  },
+  ///////////////////////////////////////////////
+  // attempt to detect image extension name
+  //
+  isImageURI: function(uri) {
+    if (!uri) {
+      return false;
+    }
+    return this.iconForFile(uri, "") == "fa-file-image";
   }
 
   /**