Update API scheme on layer 145.

Telegram/Resources/tl/api.tl

@@ -420,7 +420,7 @@ upload.fileCdnRedirect#f18cda44 dc_id:int file_token:bytes encryption_key:bytes
 
 dcOption#18b7a10d flags:# ipv6:flags.0?true media_only:flags.1?true tcpo_only:flags.2?true cdn:flags.3?true static:flags.4?true this_port_only:flags.5?true id:int ip_address:string port:int secret:flags.10?bytes = DcOption;
 
-config#330b4067 flags:# phonecalls_enabled:flags.1?true default_p2p_contacts:flags.3?true preload_featured_stickers:flags.4?true ignore_phone_entities:flags.5?true revoke_pm_inbox:flags.6?true blocked_mode:flags.8?true pfs_enabled:flags.13?true force_try_ipv6:flags.14?true date:int expires:int test_mode:Bool this_dc:int dc_options:Vector<DcOption> dc_txt_domain_name:string chat_size_max:int megagroup_size_max:int forwarded_count_max:int online_update_period_ms:int offline_blur_timeout_ms:int offline_idle_timeout_ms:int online_cloud_timeout_ms:int notify_cloud_delay_ms:int notify_default_delay_ms:int push_chat_period_ms:int push_chat_limit:int saved_gifs_limit:int edit_time_limit:int revoke_time_limit:int revoke_pm_time_limit:int rating_e_decay:int stickers_recent_limit:int stickers_faved_limit:int channels_read_media_period:int tmp_sessions:flags.0?int pinned_dialogs_count_max:int pinned_infolder_count_max:int call_receive_timeout_ms:int call_ring_timeout_ms:int call_connect_timeout_ms:int call_packet_timeout_ms:int me_url_prefix:string autoupdate_url_prefix:flags.7?string gif_search_username:flags.9?string venue_search_username:flags.10?string img_search_username:flags.11?string static_maps_provider:flags.12?string caption_length_max:int message_length_max:int webfile_dc_id:int suggested_lang_code:flags.2?string lang_pack_version:flags.2?int base_lang_pack_version:flags.2?int = Config;
+config#232566ac flags:# phonecalls_enabled:flags.1?true default_p2p_contacts:flags.3?true preload_featured_stickers:flags.4?true ignore_phone_entities:flags.5?true revoke_pm_inbox:flags.6?true blocked_mode:flags.8?true pfs_enabled:flags.13?true force_try_ipv6:flags.14?true date:int expires:int test_mode:Bool this_dc:int dc_options:Vector<DcOption> dc_txt_domain_name:string chat_size_max:int megagroup_size_max:int forwarded_count_max:int online_update_period_ms:int offline_blur_timeout_ms:int offline_idle_timeout_ms:int online_cloud_timeout_ms:int notify_cloud_delay_ms:int notify_default_delay_ms:int push_chat_period_ms:int push_chat_limit:int saved_gifs_limit:int edit_time_limit:int revoke_time_limit:int revoke_pm_time_limit:int rating_e_decay:int stickers_recent_limit:int stickers_faved_limit:int channels_read_media_period:int tmp_sessions:flags.0?int pinned_dialogs_count_max:int pinned_infolder_count_max:int call_receive_timeout_ms:int call_ring_timeout_ms:int call_connect_timeout_ms:int call_packet_timeout_ms:int me_url_prefix:string autoupdate_url_prefix:flags.7?string gif_search_username:flags.9?string venue_search_username:flags.10?string img_search_username:flags.11?string static_maps_provider:flags.12?string caption_length_max:int message_length_max:int webfile_dc_id:int suggested_lang_code:flags.2?string lang_pack_version:flags.2?int base_lang_pack_version:flags.2?int reactions_default:flags.15?Reaction = Config;
 
 nearestDc#8e1a1775 country:string this_dc:int nearest_dc:int = NearestDc;
 
@@ -1330,7 +1330,7 @@ messages.peerSettings#6880b94d settings:PeerSettings chats:Vector<Chat> users:Ve
 
 auth.loggedOut#c3a2835f flags:# future_auth_token:flags.0?bytes = auth.LoggedOut;
 
-reactionCount#6fb250d1 flags:# chosen:flags.0?true reaction:string count:int = ReactionCount;
+reactionCount#2454adf0 flags:# chosen:flags.0?true reaction:Reaction count:int = ReactionCount;
 
 messageReactions#4f2b9479 flags:# min:flags.0?true can_see_list:flags.2?true results:Vector<ReactionCount> recent_reactions:flags.1?Vector<MessagePeerReaction> = MessageReactions;
 
@@ -1344,7 +1344,7 @@ messages.availableReactions#768e3aad hash:int reactions:Vector<AvailableReaction
 messages.translateNoResult#67ca4737 = messages.TranslatedText;
 messages.translateResultText#a214f7d0 text:string = messages.TranslatedText;
 
-messagePeerReaction#51b67eff flags:# big:flags.0?true unread:flags.1?true peer_id:Peer reaction:string = MessagePeerReaction;
+messagePeerReaction#b156fe9c flags:# big:flags.0?true unread:flags.1?true peer_id:Peer reaction:Reaction = MessagePeerReaction;
 
 groupCallStreamChannel#80eb48af channel:int scale:int last_timestamp_ms:long = GroupCallStreamChannel;
 
@@ -1412,6 +1412,10 @@ emojiStatus#929b619d document_id:long = EmojiStatus;
 account.emojiStatusesNotModified#d08ce645 = account.EmojiStatuses;
 account.emojiStatuses#90c467d1 hash:long statuses:Vector<EmojiStatus> = account.EmojiStatuses;
 
+reactionEmpty#79f5d419 = Reaction;
+reactionEmoji#1b2286b8 emoticon:string = Reaction;
+reactionCustomEmoji#8935fc73 document_id:long = Reaction;
+
 emailVerifyPurposeLoginSetup#4345be73 phone_number:string phone_code_hash:string = EmailVerifyPurpose;
 emailVerifyPurposeLoginChange#527d22eb = EmailVerifyPurpose;
 emailVerifyPurposePassport#bbf51685 = EmailVerifyPurpose;
@@ -1708,12 +1712,12 @@ messages.hideChatJoinRequest#7fe7e815 flags:# approved:flags.0?true peer:InputPe
 messages.hideAllChatJoinRequests#e085f4ea flags:# approved:flags.0?true peer:InputPeer link:flags.1?string = Updates;
 messages.toggleNoForwards#b11eafa2 peer:InputPeer enabled:Bool = Updates;
 messages.saveDefaultSendAs#ccfddf96 peer:InputPeer send_as:InputPeer = Bool;
-messages.sendReaction#25690ce4 flags:# big:flags.1?true peer:InputPeer msg_id:int reaction:flags.0?string = Updates;
+messages.sendReaction#5afe99b5 flags:# big:flags.1?true peer:InputPeer msg_id:int reaction:flags.0?Reaction = Updates;
 messages.getMessagesReactions#8bba90e6 peer:InputPeer id:Vector<int> = Updates;
-messages.getMessageReactionsList#e0ee6b77 flags:# peer:InputPeer id:int reaction:flags.0?string offset:flags.1?string limit:int = messages.MessageReactionsList;
+messages.getMessageReactionsList#461b3f48 flags:# peer:InputPeer id:int reaction:flags.0?Reaction offset:flags.1?string limit:int = messages.MessageReactionsList;
 messages.setChatAvailableReactions#14050ea6 peer:InputPeer available_reactions:Vector<string> = Updates;
 messages.getAvailableReactions#18dea0ac hash:int = messages.AvailableReactions;
-messages.setDefaultReaction#d960c4d4 reaction:string = Bool;
+messages.setDefaultReaction#4f47a016 reaction:Reaction = Bool;
 messages.translateText#24ce6dee flags:# peer:flags.0?InputPeer msg_id:flags.0?int text:flags.1?string from_lang:flags.2?string to_lang:string = messages.TranslatedText;
 messages.getUnreadReactions#e85bae1a peer:InputPeer offset_id:int add_offset:int limit:int max_id:int min_id:int = messages.Messages;
 messages.readReactions#82e251d7 peer:InputPeer = messages.AffectedHistory;

Telegram/SourceFiles/api/api_who_reacted.cpp

@@ -17,6 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_changes.h"
 #include "data/data_session.h"
 #include "data/data_media_types.h"
+#include "data/data_message_reactions.h"
 #include "main/main_app_config.h"
 #include "main/main_session.h"
 #include "main/main_account.h"
@@ -31,6 +32,8 @@ namespace {
 
 constexpr auto kContextReactionsLimit = 50;
 
+using Data::ReactionId;
+
 struct Peers {
 	std::vector<PeerId> list;
 	bool unknown = false;
@@ -41,7 +44,7 @@ inline bool operator==(const Peers &a, const Peers &b) noexcept {
 
 struct PeerWithReaction {
 	PeerId peer = 0;
-	QString reaction;
+	ReactionId reaction;
 };
 inline bool operator==(
 		const PeerWithReaction &a,
@@ -84,7 +87,7 @@ struct Context {
 	base::flat_map<not_null<HistoryItem*>, CachedRead> cachedRead;
 	base::flat_map<
 		not_null<HistoryItem*>,
-		base::flat_map<QString, CachedReacted>> cachedReacted;
+		base::flat_map<ReactionId, CachedReacted>> cachedReacted;
 	base::flat_map<not_null<Main::Session*>, rpl::lifetime> subscriptions;
 
 	[[nodiscard]] CachedRead &cacheRead(not_null<HistoryItem*> item) {
@@ -97,7 +100,7 @@ struct Context {
 
 	[[nodiscard]] CachedReacted &cacheReacted(
 			not_null<HistoryItem*> item,
-			const QString &reaction) {
+			const ReactionId &reaction) {
 		auto &map = cachedReacted[item];
 		const auto i = map.find(reaction);
 		if (i != end(map)) {
@@ -249,7 +252,7 @@ struct State {
 		Peers &&peers) {
 	auto result = PeersWithReactions{
 		.list = peers.list | ranges::views::transform([](PeerId peer) {
-			return PeerWithReaction{.peer = peer };
+			return PeerWithReaction{ .peer = peer };
 		}) | ranges::to_vector,
 		.unknown = peers.unknown,
 	};
@@ -259,7 +262,7 @@ struct State {
 
 [[nodiscard]] rpl::producer<PeersWithReactions> WhoReactedIds(
 		not_null<HistoryItem*> item,
-		const QString &reaction,
+		const ReactionId &reaction,
 		not_null<QWidget*> context) {
 	auto weak = QPointer<QWidget>(context.get());
 	const auto session = &item->history()->session();
@@ -273,12 +276,12 @@ struct State {
 			using Flag = MTPmessages_GetMessageReactionsList::Flag;
 			entry.requestId = session->api().request(
 				MTPmessages_GetMessageReactionsList(
-					MTP_flags(reaction.isEmpty()
+					MTP_flags(reaction.empty()
 						? Flag(0)
 						: Flag::f_reaction),
 					item->history()->peer->input,
 					MTP_int(item->id),
-					MTP_string(reaction),
+					ReactionToMTP(reaction),
 					MTPstring(), // offset
 					MTP_int(kContextReactionsLimit)
 				)
@@ -299,7 +302,8 @@ struct State {
 						vote.match([&](const auto &data) {
 							parsed.list.push_back(PeerWithReaction{
 								.peer = peerFromMTP(data.vpeer_id()),
-								.reaction = qs(data.vreaction()),
+								.reaction = Data::ReactionFromMTP(
+									data.vreaction()),
 							});
 						});
 					}
@@ -322,7 +326,7 @@ struct State {
 	not_null<QWidget*> context)
 -> rpl::producer<PeersWithReactions> {
 	return rpl::combine(
-		WhoReactedIds(item, QString(), context),
+		WhoReactedIds(item, {}, context),
 		WhoReadIds(item, context)
 	) | rpl::map([=](PeersWithReactions &&reacted, Peers &&read) {
 		if (reacted.unknown || read.unknown) {
@@ -347,7 +351,7 @@ bool UpdateUserpics(
 
 	struct ResolvedPeer {
 		PeerData *peer = nullptr;
-		QString reaction;
+		ReactionId reaction;
 	};
 	const auto peers = ranges::views::all(
 		ids
@@ -383,7 +387,7 @@ bool UpdateUserpics(
 		}
 		now.push_back(Userpic{
 			.peer = peer,
-			.reaction = resolved.reaction,
+			.reaction = resolved.reaction.emoji(), // #TODO reactions
 		});
 		auto &userpic = now.back();
 		userpic.uniqueKey = peer->userpicUniqueKey(userpic.view);
@@ -446,7 +450,7 @@ void RegenerateParticipants(not_null<State*> state, int small, int large) {
 
 rpl::producer<Ui::WhoReadContent> WhoReacted(
 		not_null<HistoryItem*> item,
-		const QString &reaction,
+		const ReactionId &reaction,
 		not_null<QWidget*> context,
 		const style::WhoRead &st,
 		std::shared_ptr<WhoReadList> whoReadIds) {
@@ -455,7 +459,7 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 	return [=](auto consumer) {
 		auto lifetime = rpl::lifetime();
 
-		const auto resolveWhoRead = reaction.isEmpty()
+		const auto resolveWhoRead = reaction.empty()
 			&& WhoReadExists(item);
 
 		const auto state = lifetime.make_state<State>();
@@ -463,7 +467,7 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 			consumer.put_next_copy(state->current);
 		};
 
-		const auto resolveWhoReacted = !reaction.isEmpty()
+		const auto resolveWhoReacted = !reaction.empty()
 			|| item->canViewReactions();
 		auto idsWithReactions = (resolveWhoRead && resolveWhoReacted)
 			? WhoReadOrReactedIds(item, context)
@@ -475,7 +479,7 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 			: Ui::WhoReadType::Reacted;
 		if (resolveWhoReacted) {
 			const auto &list = item->reactions();
-			state->current.fullReactionsCount = reaction.isEmpty()
+			state->current.fullReactionsCount = reaction.empty()
 				? ranges::accumulate(
 					list,
 					0,
@@ -486,11 +490,11 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 				: 0;
 
 			// #TODO reactions
-			state->current.singleReaction = !reaction.isEmpty()
+			state->current.singleReaction = (!reaction.empty()
 				? reaction
 				: (list.size() == 1)
 				? list.front().first
-				: QString();
+				: ReactionId()).emoji();
 		}
 		std::move(
 			idsWithReactions
@@ -510,7 +514,7 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 			if (whoReadIds) {
 				const auto reacted = peers.list.size() - ranges::count(
 					peers.list,
-					QString(),
+					ReactionId(),
 					&PeerWithReaction::reaction);
 				whoReadIds->list = (peers.read.size() > reacted)
 					? std::move(peers.read)
@@ -592,12 +596,12 @@ rpl::producer<Ui::WhoReadContent> WhoReacted(
 		not_null<QWidget*> context,
 		const style::WhoRead &st,
 		std::shared_ptr<WhoReadList> whoReadIds) {
-	return WhoReacted(item, QString(), context, st, std::move(whoReadIds));
+	return WhoReacted(item, {}, context, st, std::move(whoReadIds));
 }
 
 rpl::producer<Ui::WhoReadContent> WhoReacted(
 		not_null<HistoryItem*> item,
-		const QString &reaction,
+		const Data::ReactionId &reaction,
 		not_null<QWidget*> context,
 		const style::WhoRead &st) {
 	return WhoReacted(item, reaction, context, st, nullptr);

Telegram/SourceFiles/api/api_who_reacted.h

@@ -18,6 +18,10 @@ struct WhoReadContent;
 enum class WhoReadType;
 } // namespace Ui
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace Api {
 
 [[nodiscard]] bool WhoReadExists(not_null<HistoryItem*> item);
@@ -36,7 +40,7 @@ struct WhoReadList {
 	std::shared_ptr<WhoReadList> whoReadIds = nullptr);
 [[nodiscard]] rpl::producer<Ui::WhoReadContent> WhoReacted(
 	not_null<HistoryItem*> item,
-	const QString &reaction,
+	const Data::ReactionId &reaction,
 	not_null<QWidget*> context, // Cache results for this lifetime.
 	const style::WhoRead &st);
 

Telegram/SourceFiles/boxes/peers/edit_peer_reactions.cpp

@@ -91,9 +91,12 @@ void EditAllowedReactionsBox(
 		tr::lng_manage_peer_reactions_available());
 
 	const auto active = [&](const Data::Reaction &entry) {
-		return selected.contains(entry.emoji);
+		return selected.contains(entry.id.emoji());
 	};
 	const auto add = [&](const Data::Reaction &entry) {
+		if (entry.id.emoji().isEmpty()) {
+			return;
+		}
 		const auto button = Settings::AddButton(
 			container,
 			rpl::single(entry.title),
@@ -114,7 +117,7 @@ void EditAllowedReactionsBox(
 			}) | rpl::to_empty,
 			rpl::never<>(),
 			&button->lifetime());
-		state->toggles.emplace(entry.emoji, button);
+		state->toggles.emplace(entry.id.emoji(), button);
 		button->toggleOn(rpl::single(
 			active(entry)
 		) | rpl::then(

Telegram/SourceFiles/boxes/premium_preview_box.cpp

@@ -58,10 +58,12 @@ constexpr auto kStarOpacityOff = 0.1;
 constexpr auto kStarOpacityOn = 1.;
 constexpr auto kStarPeriod = 3 * crl::time(1000);
 
+using Data::ReactionId;
+
 struct Descriptor {
 	PremiumPreview section = PremiumPreview::Stickers;
 	DocumentData *requestedSticker = nullptr;
-	base::flat_map<QString, ReactionDisableType> disabled;
+	base::flat_map<ReactionId, ReactionDisableType> disabled;
 	bool fromSettings = false;
 	Fn<void()> hiddenCallback;
 	Fn<void(not_null<Ui::BoxContent*>)> shownCallback;
@@ -968,7 +970,7 @@ void ReactionPreview::paintEffect(QPainter &p) {
 [[nodiscard]] not_null<Ui::RpWidget*> ReactionsPreview(
 		not_null<Ui::RpWidget*> parent,
 		not_null<Window::SessionController*> controller,
-		const base::flat_map<QString, ReactionDisableType> &disabled,
+		const base::flat_map<ReactionId, ReactionDisableType> &disabled,
 		Fn<void()> readyCallback) {
 	struct State {
 		std::vector<std::unique_ptr<ReactionPreview>> entries;
@@ -1015,7 +1017,7 @@ void ReactionPreview::paintEffect(QPainter &p) {
 		if (!reaction.centerIcon || !reaction.aroundAnimation) {
 			continue;
 		}
-		const auto i = disabled.find(reaction.emoji);
+		const auto i = disabled.find(reaction.id);
 		const auto disable = (i != end(disabled))
 			? i->second
 			: ReactionDisableType::None;
@@ -1623,7 +1625,14 @@ void ShowStickerPreviewBox(
 void ShowPremiumPreviewBox(
 		not_null<Window::SessionController*> controller,
 		PremiumPreview section,
-		const base::flat_map<QString, ReactionDisableType> &disabled,
+		Fn<void(not_null<Ui::BoxContent*>)> shown) {
+	ShowPremiumPreviewBox(controller, section, {}, std::move(shown));
+}
+
+void ShowPremiumPreviewBox(
+		not_null<Window::SessionController*> controller,
+		PremiumPreview section,
+		const base::flat_map<ReactionId, ReactionDisableType> &disabled,
 		Fn<void(not_null<Ui::BoxContent*>)> shown) {
 	Show(controller, Descriptor{
 		.section = section,

Telegram/SourceFiles/boxes/premium_preview_box.h

@@ -11,6 +11,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class DocumentData;
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace Ui {
 class BoxContent;
 class GenericBox;
@@ -56,7 +60,12 @@ enum class ReactionDisableType {
 void ShowPremiumPreviewBox(
 	not_null<Window::SessionController*> controller,
 	PremiumPreview section,
-	const base::flat_map<QString, ReactionDisableType> &disabled = {},
+	Fn<void(not_null<Ui::BoxContent*>)> shown = nullptr);
+
+void ShowPremiumPreviewBox(
+	not_null<Window::SessionController*> controller,
+	PremiumPreview section,
+	const base::flat_map<Data::ReactionId, ReactionDisableType> &disabled,
 	Fn<void(not_null<Ui::BoxContent*>)> shown = nullptr);
 
 void ShowPremiumPreviewToBuy(

Telegram/SourceFiles/boxes/reactions_settings_box.cpp

@@ -222,9 +222,10 @@ void AddMessage(
 		emojiValue = std::move(emojiValue),
 		iconSize = st::settingsReactionMessageSize
 	](const QString &emoji) {
+		const auto id = Data::ReactionId{ emoji };
 		const auto &reactions = controller->session().data().reactions();
 		for (const auto &r : reactions.list(Data::Reactions::Type::Active)) {
-			if (emoji != r.emoji) {
+			if (r.id != id) {
 				continue;
 			}
 			const auto index = state->icons.flag ? 1 : 0;
@@ -392,7 +393,9 @@ void ReactionsSettingsBox(
 
 	const auto &reactions = controller->session().data().reactions();
 	const auto state = box->lifetime().make_state<State>();
-	state->selectedEmoji = reactions.favorite();
+	state->selectedEmoji = v::is<QString>(reactions.favorite().data)
+		? v::get<QString>(reactions.favorite().data)
+		: QString();
 
 	const auto pinnedToTop = box->setPinnedToTopContent(
 		object_ptr<Ui::VerticalLayout>(box));
@@ -451,7 +454,7 @@ void ReactionsSettingsBox(
 			rpl::never<>(),
 			&button->lifetime());
 
-		button->setClickedCallback([=, emoji = r.emoji] {
+		button->setClickedCallback([=, id = r.id] {
 			if (premium && !controller->session().premium()) {
 				ShowPremiumPreviewBox(
 					controller,
@@ -459,9 +462,11 @@ void ReactionsSettingsBox(
 				return;
 			}
 			checkButton(button);
-			state->selectedEmoji = emoji;
+			state->selectedEmoji = v::is<QString>(id.data)
+				? v::get<QString>(id.data)
+				: QString();
 		});
-		if (r.emoji == state->selectedEmoji.current()) {
+		if (r.id == Data::ReactionId{ state->selectedEmoji.current() }) {
 			firstCheckedButton = button;
 		}
 	}
@@ -479,9 +484,9 @@ void ReactionsSettingsBox(
 	box->setWidth(st::boxWideWidth);
 	box->addButton(tr::lng_settings_save(), [=] {
 		const auto &data = controller->session().data();
-		const auto selectedEmoji = state->selectedEmoji.current();
-		if (data.reactions().favorite() != selectedEmoji) {
-			data.reactions().setFavorite(selectedEmoji);
+		const auto selected = state->selectedEmoji.current();
+		if (data.reactions().favorite() != Data::ReactionId{ selected }) {
+			data.reactions().setFavorite(Data::ReactionId{ selected });
 		}
 		box->closeBox();
 	});

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -862,10 +862,7 @@ void TabbedSelector::setCurrentPeer(PeerData *peer) {
 void TabbedSelector::showPromoForPremiumEmoji() {
 	premiumEmojiChosen(
 	) | rpl::start_with_next([=] {
-		ShowPremiumPreviewBox(
-			_controller,
-			PremiumPreview::AnimatedEmoji,
-			{});
+		ShowPremiumPreviewBox(_controller, PremiumPreview::AnimatedEmoji);
 	}, lifetime());
 }
 

Telegram/SourceFiles/data/data_message_reactions.cpp

@@ -21,6 +21,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lottie/lottie_icon.h"
 #include "storage/localimageloader.h"
 #include "ui/image/image_location_factory.h"
+#include "mtproto/mtproto_config.h"
 #include "base/timer_rpl.h"
 #include "apiwrap.h"
 #include "styles/style_chat.h"
@@ -32,8 +33,35 @@ constexpr auto kRefreshFullListEach = 60 * 60 * crl::time(1000);
 constexpr auto kPollEach = 20 * crl::time(1000);
 constexpr auto kSizeForDownscale = 64;
 
+[[nodiscard]] QString ReactionIdToLog(const ReactionId &id) {
+	if (const auto custom = id.custom()) {
+		return "custom:" + QString::number(custom);
+	}
+	return id.emoji();
+}
+
 } // namespace
 
+ReactionId ReactionFromMTP(const MTPReaction &reaction) {
+	return reaction.match([](MTPDreactionEmpty) {
+		return ReactionId{ QString() };
+	}, [](const MTPDreactionEmoji &data) {
+		return ReactionId{ qs(data.vemoticon()) };
+	}, [](const MTPDreactionCustomEmoji &data) {
+		return ReactionId{ DocumentId(data.vdocument_id().v) };
+	});
+}
+
+MTPReaction ReactionToMTP(ReactionId id) {
+	if (const auto custom = id.custom()) {
+		return MTP_reactionCustomEmoji(MTP_long(custom));
+	}
+	const auto emoji = id.emoji();
+	return emoji.isEmpty()
+		? MTP_reactionEmpty()
+		: MTP_reactionEmoji(MTP_string(emoji));
+}
+
 Reactions::Reactions(not_null<Session*> owner)
 : _owner(owner)
 , _repaintTimer([=] { repaintCollected(); }) {
@@ -54,16 +82,18 @@ Reactions::Reactions(not_null<Session*> owner)
 		_repaintItems.remove(item);
 	}, _lifetime);
 
-	const auto appConfig = &_owner->session().account().appConfig();
-	appConfig->value(
-	) | rpl::start_with_next([=] {
-		const auto favorite = appConfig->get<QString>(
-			u"reactions_default"_q,
-			QString::fromUtf8("\xf0\x9f\x91\x8d"));
-		if (_favorite != favorite && !_saveFaveRequestId) {
-			_favorite = favorite;
-			_updated.fire({});
-		}
+	rpl::single(rpl::empty) | rpl::then(
+		_owner->session().mtp().config().updates()
+	) | rpl::map([=] {
+		const auto &config = _owner->session().mtp().configValues();
+		return config.reactionDefaultCustom
+			? ReactionId{ DocumentId(config.reactionDefaultCustom) }
+			: ReactionId{ config.reactionDefaultEmoji };
+	}) | rpl::filter([=](const ReactionId &id) {
+		return (_favorite != id) && !_saveFaveRequestId;
+	}) | rpl::start_with_next([=](ReactionId &&id) {
+		_favorite = std::move(id);
+		_updated.fire({});
 	}, _lifetime);
 }
 
@@ -81,17 +111,17 @@ const std::vector<Reaction> &Reactions::list(Type type) const {
 	Unexpected("Type in Reactions::list.");
 }
 
-QString Reactions::favorite() const {
+ReactionId Reactions::favorite() const {
 	return _favorite;
 }
 
-void Reactions::setFavorite(const QString &emoji) {
+void Reactions::setFavorite(const ReactionId &emoji) {
 	const auto api = &_owner->session().api();
 	if (_saveFaveRequestId) {
 		api->request(_saveFaveRequestId).cancel();
 	}
 	_saveFaveRequestId = api->request(MTPmessages_SetDefaultReaction(
-		MTP_string(emoji)
+		ReactionToMTP(emoji)
 	)).done([=] {
 		_saveFaveRequestId = 0;
 	}).fail([=] {
@@ -108,12 +138,12 @@ rpl::producer<> Reactions::updates() const {
 	return _updated.events();
 }
 
-void Reactions::preloadImageFor(const QString &emoji) {
-	if (_images.contains(emoji)) {
+void Reactions::preloadImageFor(const ReactionId &id) {
+	if (_images.contains(id)) {
 		return;
 	}
-	auto &set = _images.emplace(emoji).first->second;
-	const auto i = ranges::find(_available, emoji, &Reaction::emoji);
+	auto &set = _images.emplace(id).first->second;
+	const auto i = ranges::find(_available, id, &Reaction::id);
 	const auto document = (i == end(_available))
 		? nullptr
 		: i->centerIcon
@@ -127,8 +157,8 @@ void Reactions::preloadImageFor(const QString &emoji) {
 	}
 }
 
-void Reactions::preloadAnimationsFor(const QString &emoji) {
-	const auto i = ranges::find(_available, emoji, &Reaction::emoji);
+void Reactions::preloadAnimationsFor(const ReactionId &id) {
+	const auto i = ranges::find(_available, id, &Reaction::id);
 	if (i == end(_available)) {
 		return;
 	}
@@ -146,7 +176,7 @@ void Reactions::preloadAnimationsFor(const QString &emoji) {
 }
 
 QImage Reactions::resolveImageFor(
-		const QString &emoji,
+		const ReactionId &emoji,
 		ImageSize size) {
 	const auto i = _images.find(emoji);
 	if (i == end(_images)) {
@@ -194,11 +224,11 @@ QImage Reactions::resolveImageFor(
 }
 
 void Reactions::resolveImages() {
-	for (auto &[emoji, set] : _images) {
+	for (auto &[id, set] : _images) {
 		if (!set.bottomInfo.isNull() || set.icon || set.media) {
 			continue;
 		}
-		const auto i = ranges::find(_available, emoji, &Reaction::emoji);
+		const auto i = ranges::find(_available, id, &Reaction::id);
 		const auto document = (i == end(_available))
 			? nullptr
 			: i->centerIcon
@@ -207,8 +237,8 @@ void Reactions::resolveImages() {
 		if (document) {
 			loadImage(set, document, !i->centerIcon);
 		} else {
-			LOG(("API Error: Reaction for emoji '%1' not found!"
-				).arg(emoji));
+			LOG(("API Error: Reaction '%1' not found!"
+				).arg(ReactionIdToLog(id)));
 		}
 	}
 }
@@ -338,7 +368,7 @@ std::optional<Reaction> Reactions::parse(const MTPAvailableReaction &entry) {
 			data.vselect_animation());
 		return known
 			? std::make_optional(Reaction{
-				.emoji = emoji,
+				.id = ReactionId{ emoji },
 				.title = qs(data.vtitle()),
 				.staticIcon = _owner->processDocument(data.vstatic_icon()),
 				.appearAnimation = _owner->processDocument(
@@ -362,7 +392,7 @@ std::optional<Reaction> Reactions::parse(const MTPAvailableReaction &entry) {
 	});
 }
 
-void Reactions::send(not_null<HistoryItem*> item, const QString &chosen) {
+void Reactions::send(not_null<HistoryItem*> item, const ReactionId &chosen) {
 	const auto id = item->fullId();
 	auto &api = _owner->session().api();
 	auto i = _sentRequests.find(id);
@@ -371,14 +401,14 @@ void Reactions::send(not_null<HistoryItem*> item, const QString &chosen) {
 	} else {
 		i = _sentRequests.emplace(id).first;
 	}
-	const auto flags = chosen.isEmpty()
+	const auto flags = chosen.empty()
 		? MTPmessages_SendReaction::Flag(0)
 		: MTPmessages_SendReaction::Flag::f_reaction;
 	i->second = api.request(MTPmessages_SendReaction(
 		MTP_flags(flags),
 		item->history()->peer->input,
 		MTP_int(id.msg),
-		MTP_string(chosen)
+		ReactionToMTP(chosen)
 	)).done([=](const MTPUpdates &result) {
 		_sentRequests.remove(id);
 		_owner->session().api().applyUpdates(result);
@@ -509,13 +539,13 @@ MessageReactions::MessageReactions(not_null<HistoryItem*> item)
 : _item(item) {
 }
 
-void MessageReactions::add(const QString &reaction) {
+void MessageReactions::add(const ReactionId &reaction) {
 	if (_chosen == reaction) {
 		return;
 	}
 	const auto history = _item->history();
 	const auto self = history->session().user();
-	if (!_chosen.isEmpty()) {
+	if (!_chosen.empty()) {
 		const auto i = _list.find(_chosen);
 		Assert(i != end(_list));
 		--i->second;
@@ -534,7 +564,7 @@ void MessageReactions::add(const QString &reaction) {
 		}
 	}
 	_chosen = reaction;
-	if (!reaction.isEmpty()) {
+	if (!reaction.empty()) {
 		if (_item->canViewReactions()) {
 			auto &list = _recent[reaction];
 			list.insert(begin(list), RecentReaction{ self });
@@ -547,7 +577,7 @@ void MessageReactions::add(const QString &reaction) {
 }
 
 void MessageReactions::remove() {
-	add(QString());
+	add(ReactionId());
 }
 
 bool MessageReactions::checkIfChanged(
@@ -558,10 +588,10 @@ bool MessageReactions::checkIfChanged(
 		// We'll apply non-stale data from the request response.
 		return false;
 	}
-	auto existing = base::flat_set<QString>();
+	auto existing = base::flat_set<ReactionId>();
 	for (const auto &count : list) {
 		const auto changed = count.match([&](const MTPDreactionCount &data) {
-			const auto reaction = qs(data.vreaction());
+			const auto reaction = ReactionFromMTP(data.vreaction());
 			const auto nowCount = data.vcount().v;
 			const auto i = _list.find(reaction);
 			const auto wasCount = (i != end(_list)) ? i->second : 0;
@@ -580,10 +610,10 @@ bool MessageReactions::checkIfChanged(
 			return true;
 		}
 	}
-	auto parsed = base::flat_map<QString, std::vector<RecentReaction>>();
+	auto parsed = base::flat_map<ReactionId, std::vector<RecentReaction>>();
 	for (const auto &reaction : recent) {
 		reaction.match([&](const MTPDmessagePeerReaction &data) {
-			const auto emoji = qs(data.vreaction());
+			const auto emoji = ReactionFromMTP(data.vreaction());
 			if (_list.contains(emoji)) {
 				parsed[emoji].push_back(RecentReaction{
 					.peer = owner.peer(peerFromMTP(data.vpeer_id())),
@@ -614,16 +644,16 @@ bool MessageReactions::change(
 		return false;
 	}
 	auto changed = false;
-	auto existing = base::flat_set<QString>();
+	auto existing = base::flat_set<ReactionId>();
 	for (const auto &count : list) {
 		count.match([&](const MTPDreactionCount &data) {
-			const auto reaction = qs(data.vreaction());
+			const auto reaction = ReactionFromMTP(data.vreaction());
 			if (!ignoreChosen) {
 				if (data.is_chosen() && _chosen != reaction) {
 					_chosen = reaction;
 					changed = true;
 				} else if (!data.is_chosen() && _chosen == reaction) {
-					_chosen = QString();
+					_chosen = ReactionId();
 					changed = true;
 				}
 			}
@@ -645,14 +675,14 @@ bool MessageReactions::change(
 				++i;
 			}
 		}
-		if (!_chosen.isEmpty() && !_list.contains(_chosen)) {
-			_chosen = QString();
+		if (!_chosen.empty() && !_list.contains(_chosen)) {
+			_chosen = ReactionId();
 		}
 	}
-	auto parsed = base::flat_map<QString, std::vector<RecentReaction>>();
+	auto parsed = base::flat_map<ReactionId, std::vector<RecentReaction>>();
 	for (const auto &reaction : recent) {
 		reaction.match([&](const MTPDmessagePeerReaction &data) {
-			const auto emoji = qs(data.vreaction());
+			const auto emoji = ReactionFromMTP(data.vreaction());
 			if (_list.contains(emoji)) {
 				parsed[emoji].push_back(RecentReaction{
 					.peer = owner.peer(peerFromMTP(data.vpeer_id())),
@@ -669,12 +699,12 @@ bool MessageReactions::change(
 	return changed;
 }
 
-const base::flat_map<QString, int> &MessageReactions::list() const {
+const base::flat_map<ReactionId, int> &MessageReactions::list() const {
 	return _list;
 }
 
 auto MessageReactions::recent() const
--> const base::flat_map<QString, std::vector<RecentReaction>> & {
+-> const base::flat_map<ReactionId, std::vector<RecentReaction>> & {
 	return _recent;
 }
 
@@ -699,7 +729,7 @@ void MessageReactions::markRead() {
 	}
 }
 
-QString MessageReactions::chosen() const {
+ReactionId MessageReactions::chosen() const {
 	return _chosen;
 }
 

Telegram/SourceFiles/data/data_message_reactions.h

@@ -18,8 +18,36 @@ namespace Data {
 class DocumentMedia;
 class Session;
 
+struct ReactionId {
+	std::variant<QString, DocumentId> data;
+
+	[[nodiscard]] bool empty() const {
+		const auto emoji = std::get_if<QString>(&data);
+		return emoji && emoji->isEmpty();
+	}
+	[[nodiscard]] QString emoji() const {
+		const auto emoji = std::get_if<QString>(&data);
+		return emoji ? *emoji : QString();
+	}
+	[[nodiscard]] DocumentId custom() const {
+		const auto custom = std::get_if<DocumentId>(&data);
+		return custom ? *custom : DocumentId();
+	}
+};
+Q_DECLARE_METATYPE(ReactionId);
+
+inline bool operator<(const ReactionId &a, const ReactionId &b) {
+	return a.data < b.data;
+}
+inline bool operator==(const ReactionId &a, const ReactionId &b) {
+	return a.data == b.data;
+}
+
+[[nodiscard]] ReactionId ReactionFromMTP(const MTPReaction &reaction);
+[[nodiscard]] MTPReaction ReactionToMTP(ReactionId id);
+
 struct Reaction {
-	QString emoji;
+	ReactionId id;
 	QString title;
 	not_null<DocumentData*> staticIcon;
 	not_null<DocumentData*> appearAnimation;
@@ -44,8 +72,8 @@ public:
 		All,
 	};
 	[[nodiscard]] const std::vector<Reaction> &list(Type type) const;
-	[[nodiscard]] QString favorite() const;
-	void setFavorite(const QString &emoji);
+	[[nodiscard]] ReactionId favorite() const;
+	void setFavorite(const ReactionId &emoji);
 
 	[[nodiscard]] static base::flat_set<QString> ParseAllowed(
 		const MTPVector<MTPstring> *list);
@@ -56,13 +84,13 @@ public:
 		BottomInfo,
 		InlineList,
 	};
-	void preloadImageFor(const QString &emoji);
-	void preloadAnimationsFor(const QString &emoji);
+	void preloadImageFor(const ReactionId &emoji);
+	void preloadAnimationsFor(const ReactionId &emoji);
 	[[nodiscard]] QImage resolveImageFor(
-		const QString &emoji,
+		const ReactionId &emoji,
 		ImageSize size);
 
-	void send(not_null<HistoryItem*> item, const QString &chosen);
+	void send(not_null<HistoryItem*> item, const ReactionId &chosen);
 	[[nodiscard]] bool sending(not_null<HistoryItem*> item) const;
 
 	void poll(not_null<HistoryItem*> item, crl::time now);
@@ -104,7 +132,7 @@ private:
 
 	std::vector<Reaction> _active;
 	std::vector<Reaction> _available;
-	QString _favorite;
+	ReactionId _favorite;
 	base::flat_map<
 		not_null<DocumentData*>,
 		std::shared_ptr<Data::DocumentMedia>> _iconsCache;
@@ -113,7 +141,7 @@ private:
 	mtpRequestId _requestId = 0;
 	int32 _hash = 0;
 
-	base::flat_map<QString, ImageSet> _images;
+	base::flat_map<ReactionId, ImageSet> _images;
 	rpl::lifetime _imagesLoadLifetime;
 	bool _waitingForList = false;
 
@@ -149,7 +177,7 @@ class MessageReactions final {
 public:
 	explicit MessageReactions(not_null<HistoryItem*> item);
 
-	void add(const QString &reaction);
+	void add(const ReactionId &reaction);
 	void remove();
 	bool change(
 		const QVector<MTPReactionCount> &list,
@@ -158,10 +186,10 @@ public:
 	[[nodiscard]] bool checkIfChanged(
 		const QVector<MTPReactionCount> &list,
 		const QVector<MTPMessagePeerReaction> &recent) const;
-	[[nodiscard]] const base::flat_map<QString, int> &list() const;
+	[[nodiscard]] const base::flat_map<ReactionId, int> &list() const;
 	[[nodiscard]] auto recent() const
-		-> const base::flat_map<QString, std::vector<RecentReaction>> &;
-	[[nodiscard]] QString chosen() const;
+		-> const base::flat_map<ReactionId, std::vector<RecentReaction>> &;
+	[[nodiscard]] ReactionId chosen() const;
 	[[nodiscard]] bool empty() const;
 
 	[[nodiscard]] bool hasUnread() const;
@@ -170,9 +198,9 @@ public:
 private:
 	const not_null<HistoryItem*> _item;
 
-	QString _chosen;
-	base::flat_map<QString, int> _list;
-	base::flat_map<QString, std::vector<RecentReaction>> _recent;
+	ReactionId _chosen;
+	base::flat_map<ReactionId, int> _list;
+	base::flat_map<ReactionId, std::vector<RecentReaction>> _recent;
 
 };
 

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -401,16 +401,16 @@ HistoryInner::HistoryInner(
 			|| Window::ShowReactPremiumError(
 				_controller,
 				item,
-				reaction.emoji)) {
+				reaction.id)) {
 			return;
 		}
-		item->toggleReaction(reaction.emoji);
-		if (item->chosenReaction() != reaction.emoji) {
+		item->toggleReaction(reaction.id);
+		if (item->chosenReaction() != reaction.id) {
 			return;
 		} else if (const auto view = item->mainView()) {
 			if (const auto top = itemTop(view); top >= 0) {
 				view->animateReaction({
-					.emoji = reaction.emoji,
+					.id = reaction.id,
 					.flyIcon = reaction.icon,
 					.flyFrom = reaction.geometry.translated(0, -top),
 				});
@@ -1926,7 +1926,9 @@ void HistoryInner::mouseDoubleClickEvent(QMouseEvent *e) {
 void HistoryInner::toggleFavoriteReaction(not_null<Element*> view) const {
 	const auto favorite = session().data().reactions().favorite();
 	const auto allowed = _reactionsManager->allowedSublist();
-	if (allowed && !allowed->contains(favorite)) {
+	if (allowed
+		&& (favorite.emoji().isEmpty()
+			|| !allowed->contains(favorite.emoji()))) {
 		return;
 	}
 	const auto item = view->data();
@@ -1934,7 +1936,7 @@ void HistoryInner::toggleFavoriteReaction(not_null<Element*> view) const {
 		return;
 	} else if (item->chosenReaction() != favorite) {
 		if (const auto top = itemTop(view); top >= 0) {
-			view->animateReaction({ .emoji = favorite });
+			view->animateReaction({ .id = favorite });
 		}
 	}
 	item->toggleReaction(favorite);
@@ -1951,7 +1953,8 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 
 	const auto link = ClickHandler::getActive();
 	if (link
-		&& !link->property(kSendReactionEmojiProperty).toString().isEmpty()
+		&& !link->property(
+			kSendReactionEmojiProperty).value<Data::ReactionId>().empty()
 		&& _reactionsManager->showContextMenu(
 			this,
 			e,
@@ -1995,17 +1998,18 @@ void HistoryInner::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 
 	const auto hasWhoReactedItem = _dragStateItem
 		&& Api::WhoReactedExists(_dragStateItem);
-	const auto clickedEmoji = link
-		? link->property(kReactionsCountEmojiProperty).toString()
-		: QString();
+	const auto clickedReaction = link
+		? link->property(
+			kReactionsCountEmojiProperty).value<Data::ReactionId>()
+		: Data::ReactionId();
 	_whoReactedMenuLifetime.destroy();
-	if (hasWhoReactedItem && !clickedEmoji.isEmpty()) {
+	if (hasWhoReactedItem && !clickedReaction.empty()) {
 		HistoryView::ShowWhoReactedMenu(
 			&_menu,
 			e->globalPos(),
 			this,
 			_dragStateItem,
-			clickedEmoji,
+			clickedReaction,
 			_controller,
 			_whoReactedMenuLifetime);
 		e->accept();

Telegram/SourceFiles/history/history_item.cpp

@@ -883,7 +883,7 @@ bool HistoryItem::canReact() const {
 	return true;
 }
 
-void HistoryItem::addReaction(const QString &reaction) {
+void HistoryItem::addReaction(const Data::ReactionId &reaction) {
 	if (!_reactions) {
 		_reactions = std::make_unique<Data::MessageReactions>(this);
 	}
@@ -891,7 +891,7 @@ void HistoryItem::addReaction(const QString &reaction) {
 	history()->owner().notifyItemDataChange(this);
 }
 
-void HistoryItem::toggleReaction(const QString &reaction) {
+void HistoryItem::toggleReaction(const Data::ReactionId &reaction) {
 	if (!_reactions) {
 		_reactions = std::make_unique<Data::MessageReactions>(this);
 		const auto canViewReactions = !isDiscussionPost()
@@ -977,15 +977,17 @@ void HistoryItem::updateReactionsUnknown() {
 	_reactionsLastRefreshed = 1;
 }
 
-const base::flat_map<QString, int> &HistoryItem::reactions() const {
-	static const auto kEmpty = base::flat_map<QString, int>();
+const base::flat_map<Data::ReactionId, int> &HistoryItem::reactions() const {
+	static const auto kEmpty = base::flat_map<Data::ReactionId, int>();
 	return _reactions ? _reactions->list() : kEmpty;
 }
 
 auto HistoryItem::recentReactions() const
--> const base::flat_map<QString, std::vector<Data::RecentReaction>> & {
+-> const base::flat_map<
+		Data::ReactionId,
+		std::vector<Data::RecentReaction>> & {
 	static const auto kEmpty = base::flat_map<
-		QString,
+		Data::ReactionId,
 		std::vector<Data::RecentReaction>>();
 	return _reactions ? _reactions->recent() : kEmpty;
 }
@@ -996,25 +998,26 @@ bool HistoryItem::canViewReactions() const {
 		&& !_reactions->list().empty();
 }
 
-QString HistoryItem::chosenReaction() const {
-	return _reactions ? _reactions->chosen() : QString();
+Data::ReactionId HistoryItem::chosenReaction() const {
+	return _reactions ? _reactions->chosen() : Data::ReactionId();
 }
 
-QString HistoryItem::lookupUnreadReaction(not_null<UserData*> from) const {
+Data::ReactionId HistoryItem::lookupUnreadReaction(
+		not_null<UserData*> from) const {
 	if (!_reactions) {
-		return QString();
+		return {};
 	}
 	const auto recent = _reactions->recent();
-	for (const auto &[emoji, list] : _reactions->recent()) {
+	for (const auto &[id, list] : _reactions->recent()) {
 		const auto i = ranges::find(
 			list,
 			from,
 			&Data::RecentReaction::peer);
 		if (i != end(list) && i->unread) {
-			return emoji;
+			return id;
 		}
 	}
-	return QString();
+	return {};
 }
 
 crl::time HistoryItem::lastReactionsRefreshTime() const {

Telegram/SourceFiles/history/history_item.h

@@ -42,6 +42,7 @@ struct RippleAnimation;
 namespace Data {
 struct MessagePosition;
 struct RecentReaction;
+struct ReactionId;
 class Media;
 class MessageReactions;
 } // namespace Data
@@ -372,18 +373,19 @@ public:
 	[[nodiscard]] bool suggestDeleteAllReport() const;
 
 	[[nodiscard]] bool canReact() const;
-	void addReaction(const QString &reaction);
-	void toggleReaction(const QString &reaction);
+	void addReaction(const Data::ReactionId &reaction);
+	void toggleReaction(const Data::ReactionId &reaction);
 	void updateReactions(const MTPMessageReactions *reactions);
 	void updateReactionsUnknown();
-	[[nodiscard]] const base::flat_map<QString, int> &reactions() const;
+	[[nodiscard]] auto reactions() const
+		-> const base::flat_map<Data::ReactionId, int> &;
 	[[nodiscard]] auto recentReactions() const
-	-> const base::flat_map<
-		QString,
-		std::vector<Data::RecentReaction>> &;
+		-> const base::flat_map<
+			Data::ReactionId,
+			std::vector<Data::RecentReaction>> &;
 	[[nodiscard]] bool canViewReactions() const;
-	[[nodiscard]] QString chosenReaction() const;
-	[[nodiscard]] QString lookupUnreadReaction(
+	[[nodiscard]] Data::ReactionId chosenReaction() const;
+	[[nodiscard]] Data::ReactionId lookupUnreadReaction(
 		not_null<UserData*> from) const;
 	[[nodiscard]] crl::time lastReactionsRefreshTime() const;
 

Telegram/SourceFiles/history/view/history_view_bottom_info.cpp

@@ -29,6 +29,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace HistoryView {
 
+ReactionAnimationArgs ReactionAnimationArgs::translated(
+		QPoint point) const {
+	return {
+		.id = id,
+		.flyIcon = flyIcon,
+		.flyFrom = flyFrom.translated(point),
+	};
+}
+
 BottomInfo::BottomInfo(
 	not_null<::Data::Reactions*> reactionsOwner,
 	Data &&data)
@@ -150,7 +159,7 @@ ClickHandlerPtr BottomInfo::revokeReactionLink(
 	auto y = top;
 	auto widthLeft = available;
 	for (const auto &reaction : _reactions) {
-		const auto chosen = (reaction.emoji == _data.chosenReaction);
+		const auto chosen = (reaction.id == _data.chosenReaction);
 		const auto add = (reaction.countTextWidth > 0)
 			? st::reactionInfoDigitSkip
 			: st::reactionInfoBetween;
@@ -192,7 +201,7 @@ ClickHandlerPtr BottomInfo::revokeReactionLink(
 				auto &owner = controller->session().data();
 				if (const auto item = owner.message(itemId)) {
 					const auto chosen = item->chosenReaction();
-					if (!chosen.isEmpty()) {
+					if (!chosen.empty()) {
 						item->toggleReaction(chosen);
 					}
 				}
@@ -348,7 +357,7 @@ void BottomInfo::paintReactions(
 		}
 		if (reaction.image.isNull()) {
 			reaction.image = _reactionsOwner->resolveImageFor(
-				reaction.emoji,
+				reaction.id,
 				::Data::Reactions::ImageSize::BottomInfo);
 		}
 		const auto image = QRect(
@@ -476,15 +485,18 @@ void BottomInfo::layoutReactionsText() {
 	) | ranges::view::transform([](const auto &pair) {
 		return std::make_pair(pair.first, pair.second);
 	}) | ranges::to_vector;
-	ranges::sort(sorted, std::greater<>(), &std::pair<QString, int>::second);
+	ranges::sort(
+		sorted,
+		std::greater<>(),
+		&std::pair<ReactionId, int>::second);
 
 	auto reactions = std::vector<Reaction>();
 	reactions.reserve(sorted.size());
-	for (const auto &[emoji, count] : sorted) {
-		const auto i = ranges::find(_reactions, emoji, &Reaction::emoji);
+	for (const auto &[id, count] : sorted) {
+		const auto i = ranges::find(_reactions, id, &Reaction::id);
 		reactions.push_back((i != end(_reactions))
 			? std::move(*i)
-			: prepareReactionWithEmoji(emoji));
+			: prepareReactionWithId(id));
 		setReactionCount(reactions.back(), count);
 	}
 	_reactions = std::move(reactions);
@@ -514,10 +526,10 @@ QSize BottomInfo::countOptimalSize() {
 	return QSize(width, st::msgDateFont->height);
 }
 
-BottomInfo::Reaction BottomInfo::prepareReactionWithEmoji(
-		const QString &emoji) {
-	auto result = Reaction{ .emoji = emoji };
-	_reactionsOwner->preloadImageFor(emoji);
+BottomInfo::Reaction BottomInfo::prepareReactionWithId(
+		const ReactionId &id) {
+	auto result = Reaction{ .id = id };
+	_reactionsOwner->preloadImageFor(id);
 	return result;
 }
 
@@ -537,7 +549,7 @@ void BottomInfo::setReactionCount(Reaction &reaction, int count) {
 void BottomInfo::animateReaction(
 		ReactionAnimationArgs &&args,
 		Fn<void()> repaint) {
-	const auto i = ranges::find(_reactions, args.emoji, &Reaction::emoji);
+	const auto i = ranges::find(_reactions, args.id, &Reaction::id);
 	if (i == end(_reactions)) {
 		return;
 	}
@@ -549,23 +561,23 @@ void BottomInfo::animateReaction(
 }
 
 auto BottomInfo::takeReactionAnimations()
--> base::flat_map<QString, std::unique_ptr<Reactions::Animation>> {
+-> base::flat_map<ReactionId, std::unique_ptr<Reactions::Animation>> {
 	auto result = base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>>();
 	for (auto &reaction : _reactions) {
 		if (reaction.animation) {
-			result.emplace(reaction.emoji, std::move(reaction.animation));
+			result.emplace(reaction.id, std::move(reaction.animation));
 		}
 	}
 	return result;
 }
 
 void BottomInfo::continueReactionAnimations(base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>> animations) {
-	for (auto &[emoji, animation] : animations) {
-		const auto i = ranges::find(_reactions, emoji, &Reaction::emoji);
+	for (auto &[id, animation] : animations) {
+		const auto i = ranges::find(_reactions, id, &Reaction::id);
 		if (i != end(_reactions)) {
 			i->animation = std::move(animation);
 		}

Telegram/SourceFiles/history/view/history_view_bottom_info.h

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "history/view/history_view_object.h"
+#include "data/data_message_reactions.h"
 #include "ui/text/text.h"
 #include "base/flags.h"
 
@@ -15,23 +16,27 @@ namespace Ui {
 struct ChatPaintContext;
 } // namespace Ui
 
-namespace Data {
-class Reactions;
-} // namespace Data
-
 namespace HistoryView {
 namespace Reactions {
 class Animation;
 } // namespace Reactions
 
+struct ReactionAnimationArgs {
+	::Data::ReactionId id;
+	std::shared_ptr<Lottie::Icon> flyIcon;
+	QRect flyFrom;
+
+	[[nodiscard]] ReactionAnimationArgs translated(QPoint point) const;
+};
+
 using PaintContext = Ui::ChatPaintContext;
 
 class Message;
 struct TextState;
-struct ReactionAnimationArgs;
 
 class BottomInfo final : public Object {
 public:
+	using ReactionId = ::Data::ReactionId;
 	struct Data {
 		enum class Flag : uchar {
 			Edited         = 0x01,
@@ -49,8 +54,8 @@ public:
 
 		QDateTime date;
 		QString author;
-		base::flat_map<QString, int> reactions;
-		QString chosenReaction;
+		base::flat_map<ReactionId, int> reactions;
+		ReactionId chosenReaction;
 		std::optional<int> views;
 		std::optional<int> replies;
 		Flags flags;
@@ -79,16 +84,16 @@ public:
 		ReactionAnimationArgs &&args,
 		Fn<void()> repaint);
 	[[nodiscard]] auto takeReactionAnimations()
-		-> base::flat_map<QString, std::unique_ptr<Reactions::Animation>>;
+		-> base::flat_map<ReactionId, std::unique_ptr<Reactions::Animation>>;
 	void continueReactionAnimations(base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>> animations);
 
 private:
 	struct Reaction {
 		mutable std::unique_ptr<Reactions::Animation> animation;
 		mutable QImage image;
-		QString emoji;
+		ReactionId id;
 		QString countText;
 		int count = 0;
 		int countTextWidth = 0;
@@ -114,7 +119,8 @@ private:
 	QSize countCurrentSize(int newWidth) override;
 
 	void setReactionCount(Reaction &reaction, int count);
-	[[nodiscard]] Reaction prepareReactionWithEmoji(const QString &emoji);
+	[[nodiscard]] Reaction prepareReactionWithId(
+		const ReactionId &id);
 	[[nodiscard]] ClickHandlerPtr revokeReactionLink(
 		not_null<const HistoryItem*> item,
 		QPoint position) const;

Telegram/SourceFiles/history/view/history_view_context_menu.cpp

@@ -1153,7 +1153,7 @@ void AddWhoReactedAction(
 			controller->window().show(ReactionsListBox(
 				controller,
 				item,
-				QString(),
+				{},
 				whoReadIds));
 		}
 	};
@@ -1172,7 +1172,7 @@ void ShowWhoReactedMenu(
 		QPoint position,
 		not_null<QWidget*> context,
 		not_null<HistoryItem*> item,
-		const QString &emoji,
+		const Data::ReactionId &id,
 		not_null<Window::SessionController*> controller,
 		rpl::lifetime &lifetime) {
 	const auto participantChosen = [=](uint64 id) {
@@ -1183,20 +1183,20 @@ void ShowWhoReactedMenu(
 			controller->window().show(ReactionsListBox(
 				controller,
 				item,
-				emoji));
+				id));
 		}
 	};
 	const auto reactions = &controller->session().data().reactions();
 	const auto &list = reactions->list(
 		Data::Reactions::Type::Active);
-	const auto activeNonQuick = (emoji != reactions->favorite())
-		&& ranges::contains(list, emoji, &Data::Reaction::emoji);
+	const auto activeNonQuick = (id != reactions->favorite())
+		&& ranges::contains(list, id, &Data::Reaction::id);
 	const auto filler = lifetime.make_state<Ui::WhoReactedListMenu>(
 		participantChosen,
 		showAllChosen);
 	Api::WhoReacted(
 		item,
-		emoji,
+		id,
 		context,
 		st::defaultWhoRead
 	) | rpl::filter([=](const Ui::WhoReadContent &content) {
@@ -1206,7 +1206,7 @@ void ShowWhoReactedMenu(
 		const auto refill = [=] {
 			if (activeNonQuick) {
 				(*menu)->addAction(tr::lng_context_set_as_quick(tr::now), [=] {
-					reactions->setFavorite(emoji);
+					reactions->setFavorite(id);
 				}, &st::menuIconFave);
 				(*menu)->addSeparator();
 			}

Telegram/SourceFiles/history/view/history_view_context_menu.h

@@ -9,6 +9,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "base/unique_qptr.h"
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -75,7 +79,7 @@ void ShowWhoReactedMenu(
 	QPoint position,
 	not_null<QWidget*> context,
 	not_null<HistoryItem*> item,
-	const QString &emoji,
+	const Data::ReactionId &id,
 	not_null<Window::SessionController*> controller,
 	rpl::lifetime &lifetime);
 

Telegram/SourceFiles/history/view/history_view_element.cpp

@@ -353,15 +353,6 @@ void DateBadge::paint(
 	ServiceMessagePainter::PaintDate(p, st, text, width, y, w, chatWide);
 }
 
-ReactionAnimationArgs ReactionAnimationArgs::translated(
-		QPoint point) const {
-	return {
-		.emoji = emoji,
-		.flyIcon = flyIcon,
-		.flyFrom = flyFrom.translated(point),
-	};
-}
-
 Element::Element(
 	not_null<ElementDelegate*> delegate,
 	not_null<HistoryItem*> data,
@@ -1115,15 +1106,15 @@ void Element::animateReaction(ReactionAnimationArgs &&args) {
 
 void Element::animateUnreadReactions() {
 	const auto &recent = data()->recentReactions();
-	for (const auto &[emoji, list] : recent) {
+	for (const auto &[id, list] : recent) {
 		if (ranges::contains(list, true, &Data::RecentReaction::unread)) {
-			animateReaction({ .emoji = emoji });
+			animateReaction({ .id = id });
 		}
 	}
 }
 
 auto Element::takeReactionAnimations()
--> base::flat_map<QString, std::unique_ptr<Reactions::Animation>> {
+-> base::flat_map<Data::ReactionId, std::unique_ptr<Reactions::Animation>> {
 	return {};
 }
 

Telegram/SourceFiles/history/view/history_view_element.h

@@ -20,6 +20,7 @@ struct HistoryMessageReply;
 
 namespace Data {
 struct Reaction;
+struct ReactionId;
 } // namespace Data
 
 namespace Window {
@@ -41,6 +42,7 @@ namespace HistoryView {
 
 enum class PointState : char;
 enum class InfoDisplayType : char;
+struct ReactionAnimationArgs;
 struct StateRequest;
 struct TextState;
 class Media;
@@ -238,14 +240,6 @@ struct DateBadge : public RuntimeComponent<DateBadge, Element> {
 
 };
 
-struct ReactionAnimationArgs {
-	QString emoji;
-	std::shared_ptr<Lottie::Icon> flyIcon;
-	QRect flyFrom;
-
-	[[nodiscard]] ReactionAnimationArgs translated(QPoint point) const;
-};
-
 class Element
 	: public Object
 	, public RuntimeComposer<Element>
@@ -442,7 +436,9 @@ public:
 	virtual void animateReaction(ReactionAnimationArgs &&args);
 	void animateUnreadReactions();
 	[[nodiscard]] virtual auto takeReactionAnimations()
-		-> base::flat_map<QString, std::unique_ptr<Reactions::Animation>>;
+	-> base::flat_map<
+		Data::ReactionId,
+		std::unique_ptr<Reactions::Animation>>;
 
 	virtual ~Element();
 

Telegram/SourceFiles/history/view/history_view_list_widget.cpp

@@ -361,16 +361,16 @@ ListWidget::ListWidget(
 			|| Window::ShowReactPremiumError(
 				_controller,
 				item,
-				reaction.emoji)) {
+				reaction.id)) {
 			return;
 		}
-		item->toggleReaction(reaction.emoji);
-		if (item->chosenReaction() != reaction.emoji) {
+		item->toggleReaction(reaction.id);
+		if (item->chosenReaction() != reaction.id) {
 			return;
 		} else if (const auto view = viewForItem(item)) {
 			if (const auto top = itemTop(view); top >= 0) {
 				view->animateReaction({
-					.emoji = reaction.emoji,
+					.id = reaction.id,
 					.flyIcon = reaction.icon,
 					.flyFrom = reaction.geometry.translated(0, -top),
 				});
@@ -2116,7 +2116,9 @@ void ListWidget::mouseDoubleClickEvent(QMouseEvent *e) {
 void ListWidget::toggleFavoriteReaction(not_null<Element*> view) const {
 	const auto favorite = session().data().reactions().favorite();
 	const auto allowed = _reactionsManager->allowedSublist();
-	if (allowed && !allowed->contains(favorite)) {
+	if (allowed
+		&& (favorite.emoji().isEmpty()
+			|| !allowed->contains(favorite.emoji()))) {
 		return;
 	}
 	const auto item = view->data();
@@ -2124,7 +2126,7 @@ void ListWidget::toggleFavoriteReaction(not_null<Element*> view) const {
 		return;
 	} else if (item->chosenReaction() != favorite) {
 		if (const auto top = itemTop(view); top >= 0) {
-			view->animateReaction({ .emoji = favorite });
+			view->animateReaction({ .id = favorite });
 		}
 	}
 	item->toggleReaction(favorite);
@@ -2187,7 +2189,8 @@ void ListWidget::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 
 	const auto link = ClickHandler::getActive();
 	if (link
-		&& !link->property(kSendReactionEmojiProperty).toString().isEmpty()
+		&& !link->property(
+			kSendReactionEmojiProperty).value<Data::ReactionId>().empty()
 		&& _reactionsManager->showContextMenu(
 			this,
 			e,
@@ -2201,17 +2204,18 @@ void ListWidget::showContextMenu(QContextMenuEvent *e, bool showFromTouch) {
 		: nullptr;
 	const auto hasWhoReactedItem = overItem
 		&& Api::WhoReactedExists(overItem);
-	const auto clickedEmoji = link
-		? link->property(kReactionsCountEmojiProperty).toString()
-		: QString();
+	const auto clickedReaction = link
+		? link->property(
+			kReactionsCountEmojiProperty).value<Data::ReactionId>()
+		: Data::ReactionId();
 	_whoReactedMenuLifetime.destroy();
-	if (hasWhoReactedItem && !clickedEmoji.isEmpty()) {
+	if (hasWhoReactedItem && !clickedReaction.empty()) {
 		HistoryView::ShowWhoReactedMenu(
 			&_menu,
 			e->globalPos(),
 			this,
 			overItem,
-			clickedEmoji,
+			clickedReaction,
 			_controller,
 			_whoReactedMenuLifetime);
 		e->accept();

Telegram/SourceFiles/history/view/history_view_message.cpp

@@ -260,10 +260,12 @@ Message::Message(
 	refreshReactions();
 	auto animations = replacing
 		? replacing->takeReactionAnimations()
-		: base::flat_map<QString, std::unique_ptr<Reactions::Animation>>();
+		: base::flat_map<
+			Data::ReactionId,
+			std::unique_ptr<Reactions::Animation>>();
 	if (!animations.empty()) {
 		const auto repainter = [=] { repaint(); };
-		for (const auto &[emoji, animation] : animations) {
+		for (const auto &[id, animation] : animations) {
 			animation->setRepaintCallback(repainter);
 		}
 		if (_reactions) {
@@ -433,7 +435,7 @@ void Message::animateReaction(ReactionAnimationArgs &&args) {
 }
 
 auto Message::takeReactionAnimations()
--> base::flat_map<QString, std::unique_ptr<Reactions::Animation>> {
+-> base::flat_map<Data::ReactionId, std::unique_ptr<Reactions::Animation>> {
 	return _reactions
 		? _reactions->takeAnimations()
 		: _bottomInfo.takeReactionAnimations();
@@ -2182,15 +2184,15 @@ void Message::refreshReactions() {
 	using namespace Reactions;
 	auto reactionsData = InlineListDataFromMessage(this);
 	if (!_reactions) {
-		const auto handlerFactory = [=](QString emoji) {
+		const auto handlerFactory = [=](ReactionId id) {
 			const auto weak = base::make_weak(this);
 			return std::make_shared<LambdaClickHandler>([=] {
 				if (const auto strong = weak.get()) {
-					strong->data()->toggleReaction(emoji);
+					strong->data()->toggleReaction(id);
 					if (const auto now = weak.get()) {
-						if (now->data()->chosenReaction() == emoji) {
+						if (now->data()->chosenReaction() == id) {
 							now->animateReaction({
-								.emoji = emoji,
+								.id = id,
 							});
 						}
 					}

Telegram/SourceFiles/history/view/history_view_message.h

@@ -16,6 +16,10 @@ class HistoryMessage;
 struct HistoryMessageEdited;
 struct HistoryMessageForwarded;
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace HistoryView {
 
 class ViewButton;
@@ -136,7 +140,9 @@ public:
 
 	void animateReaction(ReactionAnimationArgs &&args) override;
 	auto takeReactionAnimations()
-		-> base::flat_map<QString, std::unique_ptr<Reactions::Animation>> override;
+	-> base::flat_map<
+		Data::ReactionId,
+		std::unique_ptr<Reactions::Animation>> override;
 
 	QRect innerGeometry() const override;
 

Telegram/SourceFiles/history/view/history_view_react_animation.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_react_animation.h"
 
 #include "history/view/history_view_element.h"
+#include "history/view/history_view_bottom_info.h"
 #include "lottie/lottie_icon.h"
 #include "data/data_message_reactions.h"
 #include "data/data_document.h"
@@ -30,7 +31,7 @@ Animation::Animation(
 , _repaint(std::move(repaint))
 , _flyFrom(args.flyFrom) {
 	const auto &list = owner->list(::Data::Reactions::Type::All);
-	const auto i = ranges::find(list, args.emoji, &::Data::Reaction::emoji);
+	const auto i = ranges::find(list, args.id, &::Data::Reaction::id);
 	if (i == end(list) || !i->centerIcon) {
 		return;
 	}

Telegram/SourceFiles/history/view/history_view_react_button.cpp

@@ -407,9 +407,9 @@ Manager::Manager(
 		applyListFilters();
 	}, _lifetime);
 
-	_createChooseCallback = [=](QString emoji) {
+	_createChooseCallback = [=](ReactionId id) {
 		return [=] {
-			if (auto chosen = lookupChosen(emoji)) {
+			if (auto chosen = lookupChosen(id)) {
 				updateButton({});
 				_chosen.fire(std::move(chosen));
 			}
@@ -417,13 +417,13 @@ Manager::Manager(
 	};
 }
 
-Manager::Chosen Manager::lookupChosen(const QString &emoji) const {
+Manager::Chosen Manager::lookupChosen(const ReactionId &id) const {
 	auto result = Chosen{
 		.context = _buttonContext,
-		.emoji = emoji,
+		.id = id,
 	};
 	const auto button = _button.get();
-	const auto i = ranges::find(_icons, emoji, &ReactionIcons::emoji);
+	const auto i = ranges::find(_icons, id, &ReactionIcons::id);
 	if (i == end(_icons) || !button) {
 		return result;
 	}
@@ -471,14 +471,15 @@ void Manager::applyListFilters() {
 	auto showPremiumLock = (ReactionIcons*)nullptr;
 	auto favoriteIndex = -1;
 	for (auto &icon : _list) {
-		const auto &emoji = icon.emoji;
+		const auto &id = icon.id;
 		const auto add = applyUniqueLimit
-			? _buttonAlreadyList.contains(emoji)
-			: (!_filter || _filter->contains(emoji));
+			? _buttonAlreadyList.contains(id)
+			: (!_filter
+				|| (!id.emoji().isEmpty() && _filter->contains(id.emoji())));
 		if (add) {
 			if (icon.premium
 				&& !_allowSendingPremium
-				&& !_buttonAlreadyList.contains(emoji)) {
+				&& !_buttonAlreadyList.contains(id)) {
 				if (_premiumPossible) {
 					showPremiumLock = &icon;
 				} else {
@@ -486,7 +487,7 @@ void Manager::applyListFilters() {
 				}
 			} else {
 				icon.premiumLock = false;
-				if (emoji == _favorite) {
+				if (id == _favorite) {
 					favoriteIndex = int(icons.size());
 				}
 				icons.push_back(&icon);
@@ -576,13 +577,13 @@ void Manager::showButtonDelayed() {
 
 void Manager::applyList(
 		const std::vector<Data::Reaction> &list,
-		const QString &favorite,
+		const ReactionId &favorite,
 		bool premiumPossible) {
 	const auto possibleChanged = (_premiumPossible != premiumPossible);
 	_premiumPossible = premiumPossible;
 	const auto proj = [](const auto &obj) {
 		return std::tie(
-			obj.emoji,
+			obj.id,
 			obj.appearAnimation,
 			obj.selectAnimation,
 			obj.premium);
@@ -603,7 +604,7 @@ void Manager::applyList(
 	_list.clear();
 	for (const auto &reaction : list) {
 		_list.push_back({
-			.emoji = reaction.emoji,
+			.id = reaction.id,
 			.appearAnimation = reaction.appearAnimation,
 			.selectAnimation = reaction.selectAnimation,
 			.premium = reaction.premium,
@@ -639,12 +640,12 @@ void Manager::updateUniqueLimit(not_null<HistoryItem*> item) {
 	}
 	const auto &all = item->reactions();
 	const auto my = item->chosenReaction();
-	auto list = base::flat_set<QString>();
+	auto list = base::flat_set<Data::ReactionId>();
 	list.reserve(all.size());
 	auto myIsUnique = false;
-	for (const auto &[emoji, count] : all) {
-		list.emplace(emoji);
-		if (count == 1 && emoji == my) {
+	for (const auto &[id, count] : all) {
+		list.emplace(id);
+		if (count == 1 && id == my) {
 			myIsUnique = true;
 		}
 	}
@@ -780,7 +781,7 @@ void Manager::loadIcons() {
 	if (all && !_icons.empty()) {
 		auto &data = _icons.front()->appearAnimation->owner().reactions();
 		for (const auto &icon : _icons) {
-			data.preloadAnimationsFor(icon->emoji);
+			data.preloadAnimationsFor(icon->id);
 		}
 	}
 }
@@ -886,15 +887,17 @@ void Manager::setSelectedIcon(int index) const {
 
 ClickHandlerPtr Manager::resolveButtonLink(
 		const ReactionIcons &reaction) const {
-	const auto emoji = reaction.emoji;
-	const auto i = _reactionsLinks.find(emoji);
+	const auto id = reaction.id;
+	const auto i = _reactionsLinks.find(id);
 	if (i != end(_reactionsLinks)) {
 		return i->second;
 	}
 	auto handler = std::make_shared<LambdaClickHandler>(
-		crl::guard(this, _createChooseCallback(emoji)));
-	handler->setProperty(kSendReactionEmojiProperty, emoji);
-	return _reactionsLinks.emplace(emoji, std::move(handler)).first->second;
+		crl::guard(this, _createChooseCallback(id)));
+	handler->setProperty(
+		kSendReactionEmojiProperty,
+		QVariant::fromValue(id));
+	return _reactionsLinks.emplace(id, std::move(handler)).first->second;
 }
 
 TextState Manager::buttonTextState(QPoint position) const {
@@ -1625,23 +1628,23 @@ void Manager::recordCurrentReactionEffect(FullMsgId itemId, QPoint origin) {
 bool Manager::showContextMenu(
 		QWidget *parent,
 		QContextMenuEvent *e,
-		const QString &favorite) {
+		const ReactionId &favorite) {
 	if (_icons.empty() || _selectedIcon < 0) {
 		return false;
 	}
-	const auto lookupSelectedEmoji = [&] {
+	const auto lookupSelectedId = [&] {
 		const auto i = ranges::find(_icons, true, &ReactionIcons::selected);
-		return (i != end(_icons)) ? (*i)->emoji : QString();
+		return (i != end(_icons)) ? (*i)->id : ReactionId();
 	};
-	if (!favorite.isEmpty() && lookupSelectedEmoji() == favorite) {
+	if (!favorite.empty() && lookupSelectedId() == favorite) {
 		return true;
 	}
 	_menu = base::make_unique_q<Ui::PopupMenu>(
 		parent,
 		st::popupMenuWithIcons);
 	const auto callback = [=] {
-		if (const auto emoji = lookupSelectedEmoji(); !emoji.isEmpty()) {
-			_faveRequests.fire_copy(emoji);
+		if (const auto id = lookupSelectedId(); !id.empty()) {
+			_faveRequests.fire_copy(id);
 		}
 	};
 	_menu->addAction(
@@ -1652,7 +1655,7 @@ bool Manager::showContextMenu(
 	return true;
 }
 
-rpl::producer<QString> Manager::faveRequests() const {
+auto Manager::faveRequests() const -> rpl::producer<ReactionId> {
 	return _faveRequests.events();
 }
 
@@ -1677,8 +1680,8 @@ void SetupManagerList(
 	}, manager->lifetime());
 
 	manager->faveRequests(
-	) | rpl::start_with_next([=](const QString &emoji) {
-		reactions->setFavorite(emoji);
+	) | rpl::start_with_next([=](const Data::ReactionId &id) {
+		reactions->setFavorite(id);
 		manager->updateButton({});
 	}, manager->lifetime());
 

Telegram/SourceFiles/history/view/history_view_react_button.h

@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "ui/effects/animations.h"
 #include "ui/widgets/scroll_area.h"
+#include "data/data_message_reactions.h"
 #include "ui/chat/chat_style.h"
 
 namespace Ui {
@@ -143,11 +144,12 @@ public:
 		IconFactory iconFactory);
 	~Manager();
 
+	using ReactionId = ::Data::ReactionId;
 	using AllowedSublist = std::optional<base::flat_set<QString>>;
 
 	void applyList(
 		const std::vector<Data::Reaction> &list,
-		const QString &favorite,
+		const ReactionId &favorite,
 		bool premiumPossible);
 	void updateAllowedSublist(AllowedSublist filter);
 	void updateAllowSendingPremium(bool allow);
@@ -163,12 +165,12 @@ public:
 
 	struct Chosen {
 		FullMsgId context;
-		QString emoji;
+		ReactionId id;
 		std::shared_ptr<Lottie::Icon> icon;
 		QRect geometry;
 
 		explicit operator bool() const {
-			return context && !emoji.isNull();
+			return context && !id.empty();
 		}
 	};
 	[[nodiscard]] rpl::producer<Chosen> chosen() const {
@@ -185,8 +187,8 @@ public:
 	bool showContextMenu(
 		QWidget *parent,
 		QContextMenuEvent *e,
-		const QString &favorite);
-	[[nodiscard]] rpl::producer<QString> faveRequests() const;
+		const ReactionId &favorite);
+	[[nodiscard]] rpl::producer<ReactionId> faveRequests() const;
 
 	[[nodiscard]] rpl::lifetime &lifetime() {
 		return _lifetime;
@@ -198,7 +200,7 @@ private:
 		std::shared_ptr<Lottie::Icon> icon;
 	};
 	struct ReactionIcons {
-		QString emoji;
+		ReactionId id;
 		not_null<DocumentData*> appearAnimation;
 		not_null<DocumentData*> selectAnimation;
 		std::shared_ptr<Lottie::Icon> appear;
@@ -221,7 +223,7 @@ private:
 	void showButtonDelayed();
 	void stealWheelEvents(not_null<QWidget*> target);
 
-	[[nodiscard]] Chosen lookupChosen(const QString &emoji) const;
+	[[nodiscard]] Chosen lookupChosen(const ReactionId &id) const;
 	[[nodiscard]] bool overCurrentButton(QPoint position) const;
 
 	void removeStaleButtons();
@@ -314,7 +316,7 @@ private:
 	const IconFactory _iconFactory;
 	rpl::event_stream<Chosen> _chosen;
 	std::vector<ReactionIcons> _list;
-	QString _favorite;
+	ReactionId _favorite;
 	AllowedSublist _filter;
 	QSize _outer;
 	QRect _inner;
@@ -358,10 +360,10 @@ private:
 	std::unique_ptr<Button> _button;
 	std::vector<std::unique_ptr<Button>> _buttonHiding;
 	FullMsgId _buttonContext;
-	base::flat_set<QString> _buttonAlreadyList;
+	base::flat_set<ReactionId> _buttonAlreadyList;
 	int _buttonAlreadyNotMineCount = 0;
-	mutable base::flat_map<QString, ClickHandlerPtr> _reactionsLinks;
-	Fn<Fn<void()>(QString)> _createChooseCallback;
+	mutable base::flat_map<ReactionId, ClickHandlerPtr> _reactionsLinks;
+	Fn<Fn<void()>(ReactionId)> _createChooseCallback;
 
 	base::flat_map<FullMsgId, QRect> _activeEffectAreas;
 
@@ -369,7 +371,7 @@ private:
 	base::flat_map<FullMsgId, Ui::ReactionPaintInfo> _collectedEffects;
 
 	base::unique_qptr<Ui::PopupMenu> _menu;
-	rpl::event_stream<QString> _faveRequests;
+	rpl::event_stream<ReactionId> _faveRequests;
 
 	rpl::lifetime _lifetime;
 

Telegram/SourceFiles/history/view/history_view_reactions.cpp

@@ -14,7 +14,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_react_animation.h"
 #include "history/view/history_view_group_call_bar.h"
 #include "core/click_handler_types.h"
-#include "data/data_message_reactions.h"
 #include "data/data_peer.h"
 #include "lang/lang_tag.h"
 #include "ui/chat/chat_style.h"
@@ -35,9 +34,21 @@ constexpr auto kMaxNicePerRow = 5;
 
 } // namespace
 
+struct InlineList::Button {
+	QRect geometry;
+	mutable std::unique_ptr<Animation> animation;
+	mutable QImage image;
+	mutable ClickHandlerPtr link;
+	std::unique_ptr<Userpics> userpics;
+	ReactionId id;
+	QString countText;
+	int count = 0;
+	int countTextWidth = 0;
+};
+
 InlineList::InlineList(
 	not_null<::Data::Reactions*> owner,
-	Fn<ClickHandlerPtr(QString)> handlerFactory,
+	Fn<ClickHandlerPtr(ReactionId)> handlerFactory,
 	Data &&data)
 : _owner(owner)
 , _handlerFactory(std::move(handlerFactory))
@@ -85,19 +96,19 @@ void InlineList::layoutButtons() {
 		} else if (p1.second < p2.second) {
 			return false;
 		}
-		return ranges::find(list, p1.first, &::Data::Reaction::emoji)
-			< ranges::find(list, p2.first, &::Data::Reaction::emoji);
+		return ranges::find(list, p1.first, &::Data::Reaction::id)
+			< ranges::find(list, p2.first, &::Data::Reaction::id);
 	});
 
 	auto buttons = std::vector<Button>();
 	buttons.reserve(sorted.size());
-	for (const auto &[emoji, count] : sorted) {
-		const auto i = ranges::find(_buttons, emoji, &Button::emoji);
+	for (const auto &[id, count] : sorted) {
+		const auto i = ranges::find(_buttons, id, &Button::id);
 		buttons.push_back((i != end(_buttons))
 			? std::move(*i)
-			: prepareButtonWithEmoji(emoji));
-		const auto add = (emoji == _data.chosenReaction) ? 1 : 0;
-		const auto j = _data.recent.find(emoji);
+			: prepareButtonWithId(id));
+		const auto add = (id == _data.chosenReaction) ? 1 : 0;
+		const auto j = _data.recent.find(id);
 		if (j != end(_data.recent) && !j->second.empty()) {
 			setButtonUserpics(buttons.back(), j->second);
 		} else {
@@ -107,9 +118,9 @@ void InlineList::layoutButtons() {
 	_buttons = std::move(buttons);
 }
 
-InlineList::Button InlineList::prepareButtonWithEmoji(const QString &emoji) {
-	auto result = Button{ .emoji = emoji };
-	_owner->preloadImageFor(emoji);
+InlineList::Button InlineList::prepareButtonWithId(const ReactionId &id) {
+	auto result = Button{ .id = id };
+	_owner->preloadImageFor(id);
 	return result;
 }
 
@@ -290,7 +301,7 @@ void InlineList::paint(
 		}
 		const auto animating = (button.animation != nullptr);
 		const auto &geometry = button.geometry;
-		const auto mine = (_data.chosenReaction == button.emoji);
+		const auto mine = (_data.chosenReaction == button.id);
 		const auto withoutMine = button.count - (mine ? 1 : 0);
 		const auto skipImage = animating
 			&& (withoutMine < 1 || !button.animation->flying());
@@ -337,7 +348,7 @@ void InlineList::paint(
 		}
 		if (button.image.isNull()) {
 			button.image = _owner->resolveImageFor(
-				button.emoji,
+				button.id,
 				::Data::Reactions::ImageSize::InlineList);
 		}
 		const auto image = QRect(
@@ -414,11 +425,11 @@ bool InlineList::getState(
 	for (const auto &button : _buttons) {
 		if (button.geometry.contains(point)) {
 			if (!button.link) {
-				button.link = _handlerFactory(button.emoji);
+				button.link = _handlerFactory(button.id);
 				button.link->setProperty(
 					kReactionsCountEmojiProperty,
-					button.emoji);
-				_owner->preloadAnimationsFor(button.emoji);
+					QVariant::fromValue(button.id));
+				_owner->preloadAnimationsFor(button.id);
 			}
 			outResult->link = button.link;
 			return true;
@@ -430,7 +441,7 @@ bool InlineList::getState(
 void InlineList::animate(
 		ReactionAnimationArgs &&args,
 		Fn<void()> repaint) {
-	const auto i = ranges::find(_buttons, args.emoji, &Button::emoji);
+	const auto i = ranges::find(_buttons, args.id, &Button::id);
 	if (i == end(_buttons)) {
 		return;
 	}
@@ -471,23 +482,23 @@ void InlineList::resolveUserpicsImage(const Button &button) const {
 }
 
 auto InlineList::takeAnimations()
--> base::flat_map<QString, std::unique_ptr<Reactions::Animation>> {
+-> base::flat_map<ReactionId, std::unique_ptr<Reactions::Animation>> {
 	auto result = base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>>();
 	for (auto &button : _buttons) {
 		if (button.animation) {
-			result.emplace(button.emoji, std::move(button.animation));
+			result.emplace(button.id, std::move(button.animation));
 		}
 	}
 	return result;
 }
 
 void InlineList::continueAnimations(base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>> animations) {
-	for (auto &[emoji, animation] : animations) {
-		const auto i = ranges::find(_buttons, emoji, &Button::emoji);
+	for (auto &[id, animation] : animations) {
+		const auto i = ranges::find(_buttons, id, &Button::id);
 		if (i != end(_buttons)) {
 			i->animation = std::move(animation);
 		}
@@ -519,14 +530,14 @@ InlineListData InlineListDataFromMessage(not_null<Message*> message) {
 	}();
 	if (showUserpics) {
 		result.recent.reserve(recent.size());
-		for (const auto &[emoji, list] : recent) {
-			result.recent.emplace(emoji).first->second = list
+		for (const auto &[id, list] : recent) {
+			result.recent.emplace(id).first->second = list
 				| ranges::view::transform(&Data::RecentReaction::peer)
 				| ranges::to_vector;
 		}
 	}
 	result.chosenReaction = item->chosenReaction();
-	if (!result.chosenReaction.isEmpty()) {
+	if (!result.chosenReaction.empty()) {
 		--result.reactions[result.chosenReaction];
 	}
 	result.flags = (message->hasOutLayout() ? Flag::OutLayout : Flag())

Telegram/SourceFiles/history/view/history_view_reactions.h

@@ -8,9 +8,9 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "history/view/history_view_object.h"
+#include "data/data_message_reactions.h"
 
 namespace Data {
-class Reactions;
 class CloudImageView;
 } // namespace Data
 
@@ -22,12 +22,13 @@ namespace HistoryView {
 using PaintContext = Ui::ChatPaintContext;
 class Message;
 struct TextState;
-struct ReactionAnimationArgs;
 struct UserpicInRow;
+struct ReactionAnimationArgs;
 } // namespace HistoryView
 
 namespace HistoryView::Reactions {
 
+using ::Data::ReactionId;
 class Animation;
 
 struct InlineListData {
@@ -39,9 +40,9 @@ struct InlineListData {
 	friend inline constexpr bool is_flag_type(Flag) { return true; };
 	using Flags = base::flags<Flag>;
 
-	base::flat_map<QString, int> reactions;
-	base::flat_map<QString, std::vector<not_null<PeerData*>>> recent;
-	QString chosenReaction;
+	base::flat_map<ReactionId, int> reactions;
+	base::flat_map<ReactionId, std::vector<not_null<PeerData*>>> recent;
+	ReactionId chosenReaction;
 	Flags flags = {};
 };
 
@@ -50,7 +51,7 @@ public:
 	using Data = InlineListData;
 	InlineList(
 		not_null<::Data::Reactions*> owner,
-		Fn<ClickHandlerPtr(QString)> handlerFactory,
+		Fn<ClickHandlerPtr(ReactionId)> handlerFactory,
 		Data &&data);
 	~InlineList();
 
@@ -76,9 +77,9 @@ public:
 		ReactionAnimationArgs &&args,
 		Fn<void()> repaint);
 	[[nodiscard]] auto takeAnimations()
-		-> base::flat_map<QString, std::unique_ptr<Reactions::Animation>>;
+		-> base::flat_map<ReactionId, std::unique_ptr<Reactions::Animation>>;
 	void continueAnimations(base::flat_map<
-		QString,
+		ReactionId,
 		std::unique_ptr<Reactions::Animation>> animations);
 
 private:
@@ -87,17 +88,7 @@ private:
 		std::vector<UserpicInRow> list;
 		bool someNotLoaded = false;
 	};
-	struct Button {
-		QRect geometry;
-		mutable std::unique_ptr<Animation> animation;
-		mutable QImage image;
-		mutable ClickHandlerPtr link;
-		std::unique_ptr<Userpics> userpics;
-		QString emoji;
-		QString countText;
-		int count = 0;
-		int countTextWidth = 0;
-	};
+	struct Button;
 
 	void layout();
 	void layoutButtons();
@@ -106,13 +97,13 @@ private:
 	void setButtonUserpics(
 		Button &button,
 		const std::vector<not_null<PeerData*>> &peers);
-	[[nodiscard]] Button prepareButtonWithEmoji(const QString &emoji);
+	[[nodiscard]] Button prepareButtonWithId(const ReactionId &id);
 	void resolveUserpicsImage(const Button &button) const;
 
 	QSize countOptimalSize() override;
 
 	const not_null<::Data::Reactions*> _owner;
-	const Fn<ClickHandlerPtr(QString)> _handlerFactory;
+	const Fn<ClickHandlerPtr(ReactionId)> _handlerFactory;
 	Data _data;
 	std::vector<Button> _buttons;
 	QSize _skipBlock;

Telegram/SourceFiles/history/view/reactions/message_reactions_list.cpp

@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history.h"
 #include "api/api_who_reacted.h"
 #include "ui/controls/who_reacted_context_action.h"
+#include "data/data_message_reactions.h"
 #include "main/main_session.h"
 #include "data/data_session.h"
 #include "data/data_peer.h"
@@ -26,9 +27,11 @@ namespace {
 constexpr auto kPerPageFirst = 20;
 constexpr auto kPerPage = 100;
 
+using ::Data::ReactionId;
+
 class Row final : public PeerListRow {
 public:
-	Row(not_null<PeerData*> peer, const QString &reaction);
+	Row(not_null<PeerData*> peer, const ReactionId &id);
 
 	QSize rightActionSize() const override;
 	QMargins rightActionMargins() const override;
@@ -51,8 +54,8 @@ public:
 	Controller(
 		not_null<Window::SessionController*> window,
 		not_null<HistoryItem*> item,
-		const QString &selected,
-		rpl::producer<QString> switches,
+		const ReactionId &selected,
+		rpl::producer<ReactionId> switches,
 		std::shared_ptr<Api::WhoReadList> whoReadIds);
 
 	Main::Session &session() const override;
@@ -61,21 +64,21 @@ public:
 	void loadMoreRows() override;
 
 private:
-	using AllEntry = std::pair<not_null<PeerData*>, QString>;
+	using AllEntry = std::pair<not_null<PeerData*>, Data::ReactionId>;
 
 	void fillWhoRead();
-	void loadMore(const QString &reaction);
-	bool appendRow(not_null<PeerData*> peer, QString reaction);
+	void loadMore(const ReactionId &reaction);
+	bool appendRow(not_null<PeerData*> peer, ReactionId reaction);
 	std::unique_ptr<PeerListRow> createRow(
 		not_null<PeerData*> peer,
-		QString reaction) const;
-	void showReaction(const QString &reaction);
+		ReactionId reaction) const;
+	void showReaction(const ReactionId &reaction);
 
 	const not_null<Window::SessionController*> _window;
 	const not_null<HistoryItem*> _item;
 	MTP::Sender _api;
 
-	QString _shownReaction;
+	ReactionId _shownReaction;
 	std::shared_ptr<Api::WhoReadList> _whoReadIds;
 	std::vector<not_null<PeerData*>> _whoRead;
 
@@ -89,9 +92,9 @@ private:
 
 };
 
-Row::Row(not_null<PeerData*> peer, const QString &reaction)
+Row::Row(not_null<PeerData*> peer, const ReactionId &id)
 : PeerListRow(peer)
-, _emoji(Ui::Emoji::Find(reaction)) {
+, _emoji(Ui::Emoji::Find(id.emoji())) { // #TODO reaction
 }
 
 QSize Row::rightActionSize() const {
@@ -132,8 +135,8 @@ void Row::rightActionPaint(
 Controller::Controller(
 	not_null<Window::SessionController*> window,
 	not_null<HistoryItem*> item,
-	const QString &selected,
-	rpl::producer<QString> switches,
+	const ReactionId &selected,
+	rpl::producer<ReactionId> switches,
 	std::shared_ptr<Api::WhoReadList> whoReadIds)
 : _window(window)
 , _item(item)
@@ -142,9 +145,9 @@ Controller::Controller(
 , _whoReadIds(whoReadIds) {
 	std::move(
 		switches
-	) | rpl::filter([=](const QString &reaction) {
+	) | rpl::filter([=](const ReactionId &reaction) {
 		return (_shownReaction != reaction);
-	}) | rpl::start_with_next([=](const QString &reaction) {
+	}) | rpl::start_with_next([=](const ReactionId &reaction) {
 		showReaction(reaction);
 	}, lifetime());
 }
@@ -154,7 +157,7 @@ Main::Session &Controller::session() const {
 }
 
 void Controller::prepare() {
-	if (_shownReaction == u"read"_q) {
+	if (_shownReaction.emoji() == u"read"_q) {
 		fillWhoRead();
 		setDescriptionText(QString());
 	} else {
@@ -164,7 +167,7 @@ void Controller::prepare() {
 	loadMore(_shownReaction);
 }
 
-void Controller::showReaction(const QString &reaction) {
+void Controller::showReaction(const ReactionId &reaction) {
 	if (_shownReaction == reaction) {
 		return;
 	}
@@ -175,9 +178,9 @@ void Controller::showReaction(const QString &reaction) {
 	}
 
 	_shownReaction = reaction;
-	if (_shownReaction == u"read"_q) {
+	if (_shownReaction.emoji() == u"read"_q) {
 		fillWhoRead();
-	} else if (_shownReaction.isEmpty()) {
+	} else if (_shownReaction.empty()) {
 		_filtered.clear();
 		for (const auto &[peer, reaction] : _all) {
 			appendRow(peer, reaction);
@@ -210,12 +213,12 @@ void Controller::fillWhoRead() {
 		}
 	}
 	for (const auto &peer : _whoRead) {
-		appendRow(peer, QString());
+		appendRow(peer, ReactionId());
 	}
 }
 
 void Controller::loadMoreRows() {
-	const auto &offset = _shownReaction.isEmpty()
+	const auto &offset = _shownReaction.empty()
 		? _allOffset
 		: _filteredOffset;
 	if (_loadRequestId || offset.isEmpty()) {
@@ -224,33 +227,33 @@ void Controller::loadMoreRows() {
 	loadMore(_shownReaction);
 }
 
-void Controller::loadMore(const QString &reaction) {
-	if (reaction == u"read"_q) {
-		loadMore(QString());
+void Controller::loadMore(const ReactionId &reaction) {
+	if (reaction.emoji() == u"read"_q) {
+		loadMore(ReactionId());
 		return;
-	} else if (reaction.isEmpty() && _allOffset.isEmpty() && !_all.empty()) {
+	} else if (reaction.empty() && _allOffset.isEmpty() && !_all.empty()) {
 		return;
 	}
 	_api.request(_loadRequestId).cancel();
 
-	const auto &offset = reaction.isEmpty()
+	const auto &offset = reaction.empty()
 		? _allOffset
 		: _filteredOffset;
 
 	using Flag = MTPmessages_GetMessageReactionsList::Flag;
 	const auto flags = Flag(0)
 		| (offset.isEmpty() ? Flag(0) : Flag::f_offset)
-		| (reaction.isEmpty() ? Flag(0) : Flag::f_reaction);
+		| (reaction.empty() ? Flag(0) : Flag::f_reaction);
 	_loadRequestId = _api.request(MTPmessages_GetMessageReactionsList(
 		MTP_flags(flags),
 		_item->history()->peer->input,
 		MTP_int(_item->id),
-		MTP_string(reaction),
+		Data::ReactionToMTP(reaction),
 		MTP_string(offset),
 		MTP_int(offset.isEmpty() ? kPerPageFirst : kPerPage)
 	)).done([=](const MTPmessages_MessageReactionsList &result) {
 		_loadRequestId = 0;
-		const auto filtered = !reaction.isEmpty();
+		const auto filtered = !reaction.empty();
 		const auto shown = (reaction == _shownReaction);
 		result.match([&](const MTPDmessages_messageReactionsList &data) {
 			const auto sessionData = &session().data();
@@ -262,7 +265,8 @@ void Controller::loadMore(const QString &reaction) {
 				reaction.match([&](const MTPDmessagePeerReaction &data) {
 					const auto peer = sessionData->peerLoaded(
 						peerFromMTP(data.vpeer_id()));
-					const auto reaction = qs(data.vreaction());
+					const auto reaction = Data::ReactionFromMTP(
+						data.vreaction());
 					if (peer && (!shown || appendRow(peer, reaction))) {
 						if (filtered) {
 							_filtered.emplace_back(peer);
@@ -288,7 +292,7 @@ void Controller::rowClicked(not_null<PeerListRow*> row) {
 	});
 }
 
-bool Controller::appendRow(not_null<PeerData*> peer, QString reaction) {
+bool Controller::appendRow(not_null<PeerData*> peer, ReactionId reaction) {
 	if (delegate()->peerListFindRow(peer->id.value)) {
 		return false;
 	}
@@ -298,7 +302,7 @@ bool Controller::appendRow(not_null<PeerData*> peer, QString reaction) {
 
 std::unique_ptr<PeerListRow> Controller::createRow(
 		not_null<PeerData*> peer,
-		QString reaction) const {
+		ReactionId reaction) const {
 	return std::make_unique<Row>(peer, reaction);
 }
 
@@ -307,23 +311,26 @@ std::unique_ptr<PeerListRow> Controller::createRow(
 object_ptr<Ui::BoxContent> ReactionsListBox(
 		not_null<Window::SessionController*> window,
 		not_null<HistoryItem*> item,
-		QString selected,
+		Data::ReactionId selected,
 		std::shared_ptr<Api::WhoReadList> whoReadIds) {
 	Expects(IsServerMsgId(item->id));
 
 	if (!item->reactions().contains(selected)) {
-		selected = QString();
+		selected = {};
 	}
-	if (selected.isEmpty() && whoReadIds && !whoReadIds->list.empty()) {
-		selected = u"read"_q;
+	if (selected.empty() && whoReadIds && !whoReadIds->list.empty()) {
+		selected = Data::ReactionId{ u"read"_q };
 	}
-	const auto tabRequests = std::make_shared<rpl::event_stream<QString>>();
+	const auto tabRequests = std::make_shared<
+		rpl::event_stream<Data::ReactionId>>();
 	const auto initBox = [=](not_null<PeerListBox*> box) {
 		box->setNoContentMargin(true);
 
 		auto map = item->reactions();
 		if (whoReadIds && !whoReadIds->list.empty()) {
-			map.emplace(u"read"_q, int(whoReadIds->list.size()));
+			map.emplace(
+				Data::ReactionId{ u"read"_q },
+				int(whoReadIds->list.size()));
 		}
 		const auto selector = CreateReactionSelector(
 			box,

Telegram/SourceFiles/history/view/reactions/message_reactions_list.h

@@ -11,6 +11,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class HistoryItem;
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace Api {
 struct WhoReadList;
 } // namespace Api
@@ -28,7 +32,7 @@ namespace HistoryView {
 object_ptr<Ui::BoxContent> ReactionsListBox(
 	not_null<Window::SessionController*> window,
 	not_null<HistoryItem*> item,
-	QString selected,
+	Data::ReactionId selected,
 	std::shared_ptr<Api::WhoReadList> whoReadIds = nullptr);
 
 } // namespace HistoryView

Telegram/SourceFiles/history/view/reactions/message_reactions_selector.cpp

@@ -10,16 +10,19 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/rp_widget.h"
 #include "ui/abstract_button.h"
 #include "ui/controls/who_reacted_context_action.h"
+#include "data/data_message_reactions.h"
 #include "styles/style_widgets.h"
 #include "styles/style_chat.h"
 
 namespace HistoryView {
 namespace {
 
+using ::Data::ReactionId;
+
 not_null<Ui::AbstractButton*> CreateTab(
 		not_null<QWidget*> parent,
 		const style::MultiSelect &st,
-		const QString &reaction,
+		const ReactionId &reaction,
 		Ui::WhoReadType whoReadType,
 		int count,
 		rpl::producer<bool> selected) {
@@ -67,14 +70,14 @@ not_null<Ui::AbstractButton*> CreateTab(
 			}
 			const auto skip = st::reactionsTabIconSkip;
 			const auto icon = QRect(skip, 0, height, height);
-			if (const auto emoji = Ui::Emoji::Find(reaction)) {
-				// #TODO reactions
+			// #TODO reactions
+			if (const auto emoji = Ui::Emoji::Find(reaction.emoji())) {
 				const auto size = Ui::Emoji::GetSizeNormal();
 				const auto shift = (height - (size / factor)) / 2;
 				Ui::Emoji::Draw(p, emoji, size, icon.x() + shift, shift);
 			} else {
 				using Type = Ui::WhoReadType;
-				(reaction.isEmpty()
+				(reaction.emoji().isEmpty()
 					? (state->selected
 						? st::reactionsTabAllSelected
 						: st::reactionsTabAll)
@@ -102,20 +105,20 @@ not_null<Ui::AbstractButton*> CreateTab(
 
 not_null<Selector*> CreateReactionSelector(
 		not_null<QWidget*> parent,
-		const base::flat_map<QString, int> &items,
-		const QString &selected,
+		const base::flat_map<ReactionId, int> &items,
+		const ReactionId &selected,
 		Ui::WhoReadType whoReadType) {
 	struct State {
-		rpl::variable<QString> selected;
+		rpl::variable<ReactionId> selected;
 		std::vector<not_null<Ui::AbstractButton*>> tabs;
 	};
 	const auto result = Ui::CreateChild<Selector>(parent.get());
-	using Entry = std::pair<int, QString>;
+	using Entry = std::pair<int, ReactionId>;
 	auto tabs = Ui::CreateChild<Ui::RpWidget>(parent.get());
 	const auto st = &st::reactionsTabs;
 	const auto state = tabs->lifetime().make_state<State>();
 	state->selected = selected;
-	const auto append = [&](const QString &reaction, int count) {
+	const auto append = [&](const ReactionId &reaction, int count) {
 		using namespace rpl::mappers;
 		const auto tab = CreateTab(
 			tabs,
@@ -131,7 +134,7 @@ not_null<Selector*> CreateReactionSelector(
 	};
 	auto sorted = std::vector<Entry>();
 	for (const auto &[reaction, count] : items) {
-		if (reaction == u"read"_q) {
+		if (reaction.emoji() == u"read"_q) {
 			append(reaction, count);
 		} else {
 			sorted.emplace_back(count, reaction);
@@ -143,7 +146,7 @@ not_null<Selector*> CreateReactionSelector(
 		0,
 		std::plus<>(),
 		&Entry::first);
-	append(QString(), count);
+	append(ReactionId(), count);
 	for (const auto &[count, reaction] : sorted) {
 		append(reaction, count);
 	}

Telegram/SourceFiles/history/view/reactions/message_reactions_selector.h

@@ -11,19 +11,23 @@ namespace Ui {
 enum class WhoReadType;
 } // namespace Ui
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace HistoryView {
 
 struct Selector {
 	Fn<void(int, int)> move;
 	Fn<void(int)> resizeToWidth;
-	Fn<rpl::producer<QString>()> changes;
+	Fn<rpl::producer<Data::ReactionId>()> changes;
 	Fn<rpl::producer<int>()> heightValue;
 };
 
 not_null<Selector*> CreateReactionSelector(
 	not_null<QWidget*> parent,
-	const base::flat_map<QString, int> &items,
-	const QString &selected,
+	const base::flat_map<Data::ReactionId, int> &items,
+	const Data::ReactionId &selected,
 	Ui::WhoReadType whoReadType);
 
 } // namespace HistoryView

Telegram/SourceFiles/mtproto/mtproto_config.cpp

@@ -16,7 +16,13 @@ namespace {
 
 constexpr auto kVersion = 1;
 
+} // namespace
+
+QString ConfigDefaultReactionEmoji() {
+	static const auto result = QString::fromUtf8("\xf0\x9f\x91\x8d");
+	return result;
 }
+
 Config::Config(Environment environment) : _dcOptions(environment) {
 	_fields.webFileDcId = _dcOptions.isTestMode() ? 2 : 4;
 	_fields.txtDomainString = _dcOptions.isTestMode()
@@ -31,11 +37,15 @@ Config::Config(const Config &other)
 
 QByteArray Config::serialize() const {
 	auto options = _dcOptions.serialize();
-	auto size = sizeof(qint32) * 2; // version + environment
-	size += Serialize::bytearraySize(options);
-	size += 28 * sizeof(qint32);
-	size += Serialize::stringSize(_fields.internalLinksDomain);
-	size += Serialize::stringSize(_fields.txtDomainString);
+	auto size = sizeof(qint32) * 2 // version + environment
+		+ Serialize::bytearraySize(options)
+		+ 19 * sizeof(qint32)
+		+ Serialize::stringSize(_fields.internalLinksDomain)
+		+ 6 * sizeof(qint32)
+		+ Serialize::stringSize(_fields.txtDomainString)
+		+ 3 * sizeof(qint32)
+		+ Serialize::stringSize(_fields.reactionDefaultEmoji)
+		+ sizeof(quint64);
 
 	auto result = QByteArray();
 	result.reserve(size);
@@ -77,7 +87,9 @@ QByteArray Config::serialize() const {
 			<< _fields.txtDomainString
 			<< qint32(1) // legacy phoneCallsEnabled
 			<< qint32(_fields.blockedMode ? 1 : 0)
-			<< qint32(_fields.captionLengthMax);
+			<< qint32(_fields.captionLengthMax)
+			<< _fields.reactionDefaultEmoji
+			<< quint64(_fields.reactionDefaultCustom);
 	}
 	return result;
 }
@@ -117,6 +129,10 @@ std::unique_ptr<Config> Config::FromSerialized(const QByteArray &serialized) {
 			auto value = qint32();
 			stream >> value;
 			field = value;
+		} else if constexpr (std::is_same_v<Type, uint64>) {
+			auto value = quint64();
+			stream >> value;
+			field = value;
 		} else if constexpr (std::is_same_v<Type, bool>
 			|| std::is_same_v<Type, rpl::variable<bool>>) {
 			auto value = qint32();
@@ -161,6 +177,10 @@ std::unique_ptr<Config> Config::FromSerialized(const QByteArray &serialized) {
 	read(legacyPhoneCallsEnabled);
 	read(raw->_fields.blockedMode);
 	read(raw->_fields.captionLengthMax);
+	if (!stream.atEnd()) {
+		read(raw->_fields.reactionDefaultEmoji);
+		read(raw->_fields.reactionDefaultCustom);
+	}
 
 	if (stream.status() != QDataStream::Ok
 		|| !raw->_dcOptions.constructFromSerialized(dcOptionsSerialized)) {
@@ -220,6 +240,16 @@ void Config::apply(const MTPDconfig &data) {
 	_fields.callPacketTimeoutMs = data.vcall_packet_timeout_ms().v;
 	_fields.blockedMode = data.is_blocked_mode();
 	_fields.captionLengthMax = data.vcaption_length_max().v;
+	_fields.reactionDefaultEmoji = ConfigDefaultReactionEmoji();
+	_fields.reactionDefaultCustom = 0;
+	if (const auto reaction = data.vreactions_default()) {
+		reaction->match([&](const MTPDreactionEmpty &) {
+		}, [&](const MTPDreactionEmoji &data) {
+			_fields.reactionDefaultEmoji = qs(data.vemoticon());
+		}, [&](const MTPDreactionCustomEmoji &data) {
+			_fields.reactionDefaultCustom = data.vdocument_id().v;
+		});
+	}
 
 	if (data.vdc_options().v.empty()) {
 		LOG(("MTP Error: config with empty dc_options received!"));

Telegram/SourceFiles/mtproto/mtproto_config.h

@@ -11,6 +11,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace MTP {
 
+[[nodiscard]] QString ConfigDefaultReactionEmoji();
+
 struct ConfigFields {
 	int chatSizeMax = 200;
 	int megagroupSizeMax = 10000;
@@ -41,6 +43,8 @@ struct ConfigFields {
 	QString txtDomainString;
 	bool blockedMode = false;
 	int captionLengthMax = 1024;
+	QString reactionDefaultEmoji = ConfigDefaultReactionEmoji();
+	uint64 reactionDefaultCustom;
 };
 
 class Config final {

Telegram/SourceFiles/settings/settings_chat.cpp

@@ -905,23 +905,23 @@ void SetupMessages(
 	state->icons.lifetimes = std::vector<rpl::lifetime>(2);
 
 	const auto &reactions = controller->session().data().reactions();
-	auto emojiValue = rpl::single(
+	auto idValue = rpl::single(
 		reactions.favorite()
 	) | rpl::then(
 		reactions.updates() | rpl::map([=] {
 			return controller->session().data().reactions().favorite();
 		})
-	) | rpl::filter([](const QString &emoji) {
-		return !emoji.isEmpty();
+	) | rpl::filter([](const Data::ReactionId &id) {
+		return !id.empty();
 	});
-	auto selectedEmoji = rpl::duplicate(emojiValue);
+	auto selected = rpl::duplicate(idValue);
 	std::move(
-		selectedEmoji
-	) | rpl::start_with_next([=, emojiValue = std::move(emojiValue)](
-			const QString &emoji) {
+		selected
+	) | rpl::start_with_next([=, idValue = std::move(idValue)](
+			const Data::ReactionId &id) {
 		const auto &reactions = controller->session().data().reactions();
 		for (const auto &r : reactions.list(Data::Reactions::Type::All)) {
-			if (emoji != r.emoji) {
+			if (id != r.id) {
 				continue;
 			}
 			const auto index = state->icons.flag ? 1 : 0;
@@ -941,7 +941,7 @@ void SetupMessages(
 				) | rpl::filter([=](not_null<QEvent*> event) {
 					return event->type() == QEvent::Enter;
 				}) | rpl::to_empty,
-				rpl::duplicate(emojiValue) | rpl::skip(1) | rpl::to_empty,
+				rpl::duplicate(idValue) | rpl::skip(1) | rpl::to_empty,
 				&state->icons.lifetimes[index]);
 			state->icons.flag = !state->icons.flag;
 			toggleButtonRight(true);

Telegram/SourceFiles/window/notifications_manager.cpp

@@ -16,6 +16,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item_components.h"
 #include "lang/lang_keys.h"
 #include "data/notify/data_notify_settings.h"
+#include "data/stickers/data_custom_emoji.h"
+#include "data/data_message_reactions.h"
 #include "data/data_document_media.h"
 #include "data/data_session.h"
 #include "data/data_channel.h"
@@ -54,6 +56,11 @@ constexpr auto kSystemAlertDuration = crl::time(1000);
 constexpr auto kSystemAlertDuration = crl::time(0);
 #endif // Q_OS_MAC
 
+[[nodiscard]] QString PlaceholderReactionText() {
+	static const auto result = QString::fromUtf8("\xf0\x9f\x92\xad");
+	return result;
+}
+
 QString TextWithPermanentSpoiler(const TextWithEntities &textWithEntities) {
 	auto text = textWithEntities.text;
 	for (const auto &e : textWithEntities.entities) {
@@ -676,13 +683,13 @@ void System::showNext() {
 				= (notify->type == ItemNotificationType::Reaction);
 			const auto reaction = reactionNotification
 				? notify->item->lookupUnreadReaction(notify->reactionSender)
-				: QString();
-			if (!reactionNotification || !reaction.isEmpty()) {
+				: Data::ReactionId();
+			if (!reactionNotification || !reaction.empty()) {
 				_manager->showNotification({
 					.item = notify->item,
 					.forwardedCount = forwardedCount,
 					.reactionFrom = notify->reactionSender,
-					.reactionEmoji = reaction,
+					.reactionId = reaction,
 				});
 			}
 		}
@@ -776,10 +783,34 @@ Manager::DisplayOptions Manager::getNotificationOptions(
 
 TextWithEntities Manager::ComposeReactionNotification(
 		not_null<HistoryItem*> item,
-		const QString &reaction,
+		const Data::ReactionId &reaction,
 		bool hideContent) {
+	const auto reactionWithEntities = [&] {
+		if (const auto emoji = std::get_if<QString>(&reaction.data)) {
+			return TextWithEntities{ *emoji };
+		}
+		const auto id = v::get<DocumentId>(reaction.data);
+		auto entities = EntitiesInText();
+		const auto document = item->history()->owner().document(id);
+		const auto sticker = document->sticker();
+		const auto text = sticker ? sticker->alt : PlaceholderReactionText();
+		return TextWithEntities{
+			text,
+			{
+				EntityInText(
+					EntityType::CustomEmoji,
+					0,
+					text.size(),
+					Data::SerializeCustomEmojiId(Data::CustomEmojiId{ id }))
+			}
+		};
+	}();
 	const auto simple = [&](const auto &phrase) {
-		return TextWithEntities{ phrase(tr::now, lt_reaction, reaction) };
+		return phrase(
+			tr::now,
+			lt_reaction,
+			reactionWithEntities,
+			Ui::Text::WithEntities);
 	};
 	if (hideContent) {
 		return simple(tr::lng_reaction_notext);
@@ -789,7 +820,7 @@ TextWithEntities Manager::ComposeReactionNotification(
 		return tr::lng_reaction_text(
 			tr::now,
 			lt_reaction,
-			Ui::Text::WithEntities(reaction),
+			reactionWithEntities,
 			lt_text,
 			item->notificationText(),
 			Ui::Text::WithEntities);
@@ -808,14 +839,13 @@ TextWithEntities Manager::ComposeReactionNotification(
 		} else if (document->isVideoFile()) {
 			return simple(tr::lng_reaction_video);
 		} else if (const auto sticker = document->sticker()) {
-			return {
-				tr::lng_reaction_sticker(
-					tr::now,
-					lt_reaction,
-					reaction,
-					lt_emoji,
-					sticker->alt)
-			};
+			return tr::lng_reaction_sticker(
+				tr::now,
+				lt_reaction,
+				reactionWithEntities,
+				lt_emoji,
+				Ui::Text::WithEntities(sticker->alt),
+				Ui::Text::WithEntities);
 		}
 		return simple(tr::lng_reaction_document);
 	} else if (const auto contact = media->sharedContact()) {
@@ -829,26 +859,26 @@ TextWithEntities Manager::ComposeReactionNotification(
 				contact->firstName,
 				lt_last_name,
 				contact->lastName);
-		return {
-			tr::lng_reaction_contact(
-				tr::now,
-				lt_reaction,
-				reaction,
-				lt_name,
-				name)
-		};
+		return tr::lng_reaction_contact(
+			tr::now,
+			lt_reaction,
+			reactionWithEntities,
+			lt_name,
+			Ui::Text::WithEntities(name),
+			Ui::Text::WithEntities);
 	} else if (media->location()) {
 		return simple(tr::lng_reaction_location);
 		// lng_reaction_live_location not used right now :(
 	} else if (const auto poll = media->poll()) {
-		return {
-			(poll->quiz() ? tr::lng_reaction_quiz : tr::lng_reaction_poll)(
+		return (poll->quiz()
+			? tr::lng_reaction_quiz
+			: tr::lng_reaction_poll)(
 				tr::now,
 				lt_reaction,
-				reaction,
+				reactionWithEntities,
 				lt_title,
-				poll->question)
-		};
+				Ui::Text::WithEntities(poll->question),
+				Ui::Text::WithEntities);
 	} else if (media->game()) {
 		return simple(tr::lng_reaction_game);
 	} else if (media->invoice()) {
@@ -1004,7 +1034,7 @@ void NativeManager::doShowNotification(NotificationFields &&fields) {
 	const auto text = reactionFrom
 		? TextWithPermanentSpoiler(ComposeReactionNotification(
 			item,
-			fields.reactionEmoji,
+			fields.reactionId,
 			options.hideMessageText))
 		: options.hideMessageText
 		? tr::lng_notification_preview(tr::now)

Telegram/SourceFiles/window/notifications_manager.h

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "data/data_message_reactions.h"
 #include "base/observer.h"
 #include "base/timer.h"
 
@@ -224,7 +225,7 @@ public:
 		not_null<HistoryItem*> item;
 		int forwardedCount = 0;
 		PeerData *reactionFrom = nullptr;
-		QString reactionEmoji;
+		Data::ReactionId reactionId;
 	};
 
 	explicit Manager(not_null<System*> system) : _system(system) {
@@ -268,7 +269,7 @@ public:
 		ItemNotificationType type) const;
 	[[nodiscard]] static TextWithEntities ComposeReactionNotification(
 		not_null<HistoryItem*> item,
-		const QString &reaction,
+		const Data::ReactionId &reaction,
 		bool hideContent);
 
 	[[nodiscard]] QString addTargetAccountName(

Telegram/SourceFiles/window/notifications_manager_default.cpp

@@ -82,7 +82,7 @@ Manager::Manager(System *system)
 Manager::QueuedNotification::QueuedNotification(NotificationFields &&fields)
 : history(fields.item->history())
 , peer(history->peer)
-, reaction(fields.reactionEmoji)
+, reaction(fields.reactionId)
 , author(!fields.reactionFrom
 	? fields.item->notificationHeader()
 	: (fields.reactionFrom != peer)
@@ -90,7 +90,7 @@ Manager::QueuedNotification::QueuedNotification(NotificationFields &&fields)
 	: QString())
 , item((fields.forwardedCount < 2) ? fields.item.get() : nullptr)
 , forwardedCount(fields.forwardedCount)
-, fromScheduled(reaction.isEmpty() && (fields.item->out() || peer->isSelf())
+, fromScheduled(reaction.empty() && (fields.item->out() || peer->isSelf())
 	&& fields.item->isFromScheduled()) {
 }
 
@@ -603,7 +603,7 @@ Notification::Notification(
 	not_null<PeerData*> peer,
 	const QString &author,
 	HistoryItem *item,
-	const QString &reaction,
+	const Data::ReactionId &reaction,
 	int forwardedCount,
 	bool fromScheduled,
 	QPoint startPosition,
@@ -799,7 +799,7 @@ void Notification::updateNotifyDisplay() {
 
 	const auto options = manager()->getNotificationOptions(
 		_item,
-		(_reaction.isEmpty()
+		(_reaction.empty()
 			? ItemNotificationType::Message
 			: ItemNotificationType::Reaction));
 	_hideReplyButton = options.hideReplyButton;
@@ -852,7 +852,7 @@ void Notification::updateNotifyDisplay() {
 		}
 
 		const auto composeText = !options.hideMessageText
-			|| (!_reaction.isEmpty() && !options.hideNameAndPhoto);
+			|| (!_reaction.empty() && !options.hideNameAndPhoto);
 		if (composeText) {
 			auto old = base::take(_textCache);
 			_textCache = Ui::Text::String(itemWidth);
@@ -861,7 +861,7 @@ void Notification::updateNotifyDisplay() {
 				st::notifyItemTop + st::msgNameFont->height,
 				itemWidth,
 				2 * st::dialogsTextFont->height);
-			const auto text = !_reaction.isEmpty()
+			const auto text = !_reaction.empty()
 				? (!_author.isEmpty()
 					? Ui::Text::PlainLink(_author).append(' ')
 					: TextWithEntities()

Telegram/SourceFiles/window/notifications_manager_default.h

@@ -113,7 +113,7 @@ private:
 
 		not_null<History*> history;
 		not_null<PeerData*> peer;
-		QString reaction;
+		Data::ReactionId reaction;
 		QString author;
 		HistoryItem *item = nullptr;
 		int forwardedCount = 0;
@@ -208,7 +208,7 @@ public:
 		not_null<PeerData*> peer,
 		const QString &author,
 		HistoryItem *item,
-		const QString &reaction,
+		const Data::ReactionId &reaction,
 		int forwardedCount,
 		bool fromScheduled,
 		QPoint startPosition,
@@ -284,7 +284,7 @@ private:
 	History *_history = nullptr;
 	std::shared_ptr<Data::CloudImageView> _userpicView;
 	QString _author;
-	QString _reaction;
+	Data::ReactionId _reaction;
 	HistoryItem *_item = nullptr;
 	int _forwardedCount = 0;
 	bool _fromScheduled = false;

Telegram/SourceFiles/window/section_widget.cpp

@@ -346,15 +346,16 @@ bool ShowSendPremiumError(
 [[nodiscard]] auto ExtractDisabledReactions(
 	not_null<PeerData*> peer,
 	const std::vector<Data::Reaction> &list)
--> base::flat_map<QString, ReactionDisableType> {
-	auto result = base::flat_map<QString, ReactionDisableType>();
+-> base::flat_map<Data::ReactionId, ReactionDisableType> {
+	auto result = base::flat_map<Data::ReactionId, ReactionDisableType>();
 	const auto type = peer->isBroadcast()
 		? ReactionDisableType::Channel
 		: ReactionDisableType::Group;
 	if (const auto allowed = Data::PeerAllowedReactions(peer)) {
 		for (const auto &reaction : list) {
-			if (reaction.premium && !allowed->contains(reaction.emoji)) {
-				result.emplace(reaction.emoji, type);
+			if (reaction.premium
+				&& !allowed->contains(reaction.id.emoji())) {
+				result.emplace(reaction.id, type);
 			}
 		}
 	}
@@ -364,13 +365,13 @@ bool ShowSendPremiumError(
 bool ShowReactPremiumError(
 		not_null<SessionController*> controller,
 		not_null<HistoryItem*> item,
-		const QString &emoji) {
-	if (item->chosenReaction() == emoji || controller->session().premium()) {
+		const Data::ReactionId &id) {
+	if (item->chosenReaction() == id || controller->session().premium()) {
 		return false;
 	}
 	const auto &list = controller->session().data().reactions().list(
 		Data::Reactions::Type::Active);
-	const auto i = ranges::find(list, emoji, &Data::Reaction::emoji);
+	const auto i = ranges::find(list, id, &Data::Reaction::id);
 	if (i == end(list) || !i->premium) {
 		return false;
 	}

Telegram/SourceFiles/window/section_widget.h

@@ -16,6 +16,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class PeerData;
 
+namespace Data {
+struct ReactionId;
+} // namespace Data
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -213,6 +217,6 @@ private:
 [[nodiscard]] bool ShowReactPremiumError(
 	not_null<SessionController*> controller,
 	not_null<HistoryItem*> item,
-	const QString &emoji);
+	const Data::ReactionId &id);
 
 } // namespace Window