Respect reactions_default from appconfig.

Telegram/SourceFiles/data/data_message_reactions.cpp

@@ -10,6 +10,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history.h"
 #include "history/history_item.h"
 #include "main/main_session.h"
+#include "main/main_account.h"
+#include "main/main_app_config.h"
 #include "data/data_session.h"
 #include "data/data_changes.h"
 #include "data/data_document.h"
@@ -47,6 +49,18 @@ Reactions::Reactions(not_null<Session*> owner)
 		_pollItems.remove(item);
 		_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) {
+			_favorite = favorite;
+			_updated.fire({});
+		}
+	}, _lifetime);
 }
 
 Reactions::~Reactions() = default;
@@ -63,6 +77,10 @@ const std::vector<Reaction> &Reactions::list(Type type) const {
 	Unexpected("Type in Reactions::list.");
 }
 
+QString Reactions::favorite() const {
+	return _favorite;
+}
+
 rpl::producer<> Reactions::updates() const {
 	return _updated.events();
 }

Telegram/SourceFiles/data/data_message_reactions.h

@@ -43,6 +43,7 @@ public:
 		All,
 	};
 	[[nodiscard]] const std::vector<Reaction> &list(Type type) const;
+	[[nodiscard]] QString favorite() const;
 
 	[[nodiscard]] static base::flat_set<QString> ParseAllowed(
 		const MTPVector<MTPstring> *list);
@@ -95,6 +96,7 @@ private:
 
 	std::vector<Reaction> _active;
 	std::vector<Reaction> _available;
+	QString _favorite;
 	base::flat_map<
 		not_null<DocumentData*>,
 		std::shared_ptr<Data::DocumentMedia>> _iconsCache;

Telegram/SourceFiles/history/view/history_view_react_button.cpp

@@ -456,16 +456,25 @@ void Manager::applyListFilters() {
 		&& (_buttonAlreadyNotMineCount >= limit);
 	auto icons = std::vector<not_null<ReactionIcons*>>();
 	icons.reserve(_list.size());
+	auto favoriteIndex = -1;
 	for (auto &icon : _list) {
+		const auto &emoji = icon.emoji;
 		const auto add = applyUniqueLimit
-			? _buttonAlreadyList.contains(icon.emoji)
-			: (!_filter || _filter->contains(icon.emoji));
+			? _buttonAlreadyList.contains(emoji)
+			: (!_filter || _filter->contains(emoji));
 		if (add) {
+			if (emoji == _favorite) {
+				favoriteIndex = int(icons.size());
+			}
 			icons.push_back(&icon);
 		} else {
 			clearStateForHidden(icon);
 		}
 	}
+	if (favoriteIndex > 0) {
+		const auto first = begin(icons);
+		std::rotate(first, first + favoriteIndex, first + favoriteIndex + 1);
+	}
 	if (_icons == icons) {
 		return;
 	}
@@ -534,14 +543,23 @@ void Manager::showButtonDelayed() {
 		[=]{ updateButton({}); });
 }
 
-void Manager::applyList(const std::vector<Data::Reaction> &list) {
+void Manager::applyList(
+		const std::vector<Data::Reaction> &list,
+		const QString &favorite) {
 	const auto proj = [](const auto &obj) {
 		return std::tie(
 			obj.emoji,
 			obj.appearAnimation,
 			obj.selectAnimation);
 	};
+	const auto favoriteChanged = (_favorite != favorite);
+	if (favoriteChanged) {
+		_favorite = favorite;
+	}
 	if (ranges::equal(_list, list, ranges::equal_to(), proj, proj)) {
+		if (favoriteChanged) {
+			applyListFilters();
+		}
 		return;
 	}
 	const auto selected = _selectedIcon;
@@ -1533,13 +1551,15 @@ void SetupManagerList(
 		not_null<Manager*> manager,
 		not_null<Main::Session*> session,
 		rpl::producer<std::optional<base::flat_set<QString>>> filter) {
+	const auto reactions = &session->data().reactions();
 	rpl::single(
 		rpl::empty_value()
 	) | rpl::then(
-		session->data().reactions().updates()
+		reactions->updates()
 	) | rpl::start_with_next([=] {
 		manager->applyList(
-			session->data().reactions().list(Data::Reactions::Type::Active));
+			reactions->list(Data::Reactions::Type::Active),
+			reactions->favorite());
 	}, manager->lifetime());
 
 	std::move(

Telegram/SourceFiles/history/view/history_view_react_button.h

@@ -141,7 +141,9 @@ public:
 		IconFactory iconFactory);
 	~Manager();
 
-	void applyList(const std::vector<Data::Reaction> &list);
+	void applyList(
+		const std::vector<Data::Reaction> &list,
+		const QString &favorite);
 	void updateAllowedSublist(std::optional<base::flat_set<QString>> filter);
 	void updateUniqueLimit(not_null<HistoryItem*> item);
 
@@ -296,6 +298,7 @@ private:
 	const IconFactory _iconFactory;
 	rpl::event_stream<Chosen> _chosen;
 	std::vector<ReactionIcons> _list;
+	QString _favorite;
 	std::optional<base::flat_set<QString>> _filter;
 	QSize _outer;
 	QRect _inner;

Telegram/SourceFiles/main/main_account.cpp

@@ -78,11 +78,12 @@ std::unique_ptr<MTP::Config> Account::prepareToStart(
 }
 
 void Account::start(std::unique_ptr<MTP::Config> config) {
+	_appConfig = std::make_unique<AppConfig>(this);
 	startMtp(config
 		? std::move(config)
 		: std::make_unique<MTP::Config>(
 			Core::App().fallbackProductionConfig()));
-	_appConfig = std::make_unique<AppConfig>(this);
+	_appConfig->start();
 	watchProxyChanges();
 	watchSessionChanges();
 }

Telegram/SourceFiles/main/main_app_config.cpp

@@ -19,12 +19,6 @@ constexpr auto kRefreshTimeout = 3600 * crl::time(1000);
 } // namespace
 
 AppConfig::AppConfig(not_null<Account*> account) : _account(account) {
-	account->mtpMainSessionValue(
-	) | rpl::start_with_next([=](not_null<MTP::Instance*> instance) {
-		_api.emplace(instance);
-		refresh();
-	}, _lifetime);
-
 	account->sessionChanges(
 	) | rpl::filter([=](Session *session) {
 		return (session != nullptr);
@@ -33,6 +27,14 @@ AppConfig::AppConfig(not_null<Account*> account) : _account(account) {
 	}, _lifetime);
 }
 
+void AppConfig::start() {
+	_account->mtpMainSessionValue(
+	) | rpl::start_with_next([=](not_null<MTP::Instance*> instance) {
+		_api.emplace(instance);
+		refresh();
+	}, _lifetime);
+}
+
 void AppConfig::refresh() {
 	if (_requestId || !_api) {
 		return;
@@ -178,6 +180,8 @@ rpl::producer<> AppConfig::suggestionRequested(const QString &key) const {
 }
 
 void AppConfig::dismissSuggestion(const QString &key) {
+	Expects(_api.has_value());
+
 	if (!_dismissedSuggestions.emplace(key).second) {
 		return;
 	}

Telegram/SourceFiles/main/main_app_config.h

@@ -17,6 +17,8 @@ class AppConfig final {
 public:
 	explicit AppConfig(not_null<Account*> account);
 
+	void start();
+
 	template <typename Type>
 	[[nodiscard]] Type get(const QString &key, Type fallback) const {
 		if constexpr (std::is_same_v<Type, double>) {