private void completeVariable(final Editor editor) {
    String prefix = myNameSuggestionsField.getEnteredName();

    final PsiReference reference = myTag.getReference();
    if (reference instanceof TagNameReference) {
      LookupElement[] lookupItems = TagNameReferenceCompletionProvider.getTagNameVariants(myTag, myTag.getNamespacePrefix());
      editor.getCaretModel().moveToOffset(prefix.length());
      editor.getSelectionModel().removeSelection();
      LookupManager.getInstance(getProject()).showLookup(editor, lookupItems, prefix);
    }
  }
private void completeVariable(final Editor editor)