/**
* Returns <code>true</code> if the user is the owner of the file, <code>false</code> otherwise.
* If the file is <code>null</code>, return <code>true</code>.
*
* @return See above.
*/
boolean isUserOwner() {
if (fileAnnotation == null) return true;
long userID = EditorAgent.getUserDetails().getId();
return EditorUtil.isUserOwner(fileAnnotation, userID);
}
