/** Updates invite contact button depending on the user role we have. */
private void updateInviteContactButton() {
if (chatSession instanceof ConferenceChatSession) {
ChatRoomMemberRole role =
((ChatRoomWrapper) chatSession.getDescriptor()).getChatRoom().getUserRole();
// it means we are at least a moderator
inviteButton.setEnabled(role.getRoleIndex() >= 50);
}
}
