fix #282

app/src/main/assets/editor/codemirror/lib/codemirror.css

@@ -340,3 +340,9 @@ div.CodeMirror-dragcursors {
 
 /* Help users use markselection to safely style text background */
 span.CodeMirror-selectedtext { background: none; }
+
+.CodeMirror-gutter-wrapper {
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  user-select: none;
+}

app/src/main/assets/editor/index.js

@@ -76,7 +76,9 @@ editor.on("keyup", function(editor, event)
             clearTimeout(id);
         }
         id = setTimeout(function(){
-            editor.execCommand("autocomplete");
+            editor.showHint({
+                completeSingle: false
+            })
         }, 100);
     }
 });