final Pair<Conversation, ParticipantId> participation = models.getParticipant(participantView);
Profile profile = profiles.getProfile(participation.second);
// Summon a popup view from a participant, and attach profile-popup logic to
// it.
final ProfilePopupView profileView = participantView.showParticipation();
ProfilePopupPresenter profileUi = ProfilePopupPresenter.create(profile, profileView, profiles);
profileUi.addControl(EscapeUtils.fromSafeConstant(messages.remove()), new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
participation.first.removeParticipant(participation.second);
// The presenter is configured to destroy itself on view hide.
profileView.hide();
}
});
profileUi.show();
}