private static @NotNull AttributeValuePresentation getValuePresentation(@NotNull Editor editor, @NotNull PsiFile file, @NotNull String quote) {
    PsiElement atParent = getAttributeCandidate(editor, file, true);
    XmlAttributeDescriptor descriptor;
    if (atParent instanceof XmlAttribute) {
      XmlTag parent = ((XmlAttribute)atParent).getParent();
      return XmlExtension.getExtension(file).getAttributeValuePresentation(parent, ((XmlAttribute)atParent).getName(), quote);
    }
    return XmlExtension.getExtension(file).getAttributeValuePresentation(null, "", quote);
  }
private static @NotNull AttributeValuePresentation getValuePresentation(@NotNull Editor editor, @NotNull PsiFile file, @NotNull String quote)