Function HidePinnedBar

Telegram/SourceFiles/window/window_peer_menu.cpp:3844–3887

}

void HidePinnedBar(
		not_null<Window::SessionNavigation*> navigation,
		not_null<PeerData*> peer,
		MsgId topicRootId,
		PeerId monoforumPeerId,
		Fn<void()> onHidden) {
	const auto callback = crl::guard(navigation, [=](Fn<void()> &&close) {
		close();
		auto &session = peer->session();
		const auto migrated = (topicRootId || monoforumPeerId)
			? nullptr
			: peer->migrateFrom();
		const auto top = Data::ResolveTopPinnedId(
			peer,
			topicRootId,
			monoforumPeerId,
			migrated);
		const auto universal = !top
			? MsgId(0)
			: (migrated && !peerIsChannel(top.peer))
			? (top.msg - ServerMaxMsgId)
			: top.msg;
		if (universal) {
			session.settings().setHiddenPinnedMessageId(
				peer->id,
				topicRootId,
				monoforumPeerId,
				universal);
			session.saveSettingsDelayed();
			if (onHidden) {
				onHidden();
			}
		} else {
			session.api().requestFullPeer(peer);
		}
	});
	navigation->parentController()->show(
		Ui::MakeConfirmBox({
			.text = tr::lng_pinned_hide_all_sure(),
			.confirmed = callback,
			.confirmText = tr::lng_pinned_hide_all_hide(),
		}),
		Ui::LayerOption::CloseOther);
}

void UnpinAllMessages(
		not_null<Window::SessionNavigation*> navigation,