diff --git a/Telegram/SourceFiles/data/stickers/data_custom_emoji.cpp b/Telegram/SourceFiles/data/stickers/data_custom_emoji.cpp
index db8a9e57d..e1f6a2551 100644
--- a/Telegram/SourceFiles/data/stickers/data_custom_emoji.cpp
+++ b/Telegram/SourceFiles/data/stickers/data_custom_emoji.cpp
@@ -13,27 +13,31 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "data/data_document.h"
 #include "data/data_document_media.h"
 #include "data/data_file_origin.h"
+#include "data/stickers/data_stickers_set.h"
 #include "lottie/lottie_common.h"
 #include "lottie/lottie_single_player.h"
 #include "chat_helpers/stickers_lottie.h"
 #include "ui/text/text_block.h"
+#include "apiwrap.h"
 
 namespace Data {
-namespace {
 
 struct CustomEmojiId {
 	StickerSetIdentifier set;
 	uint64 id = 0;
 };
+
+namespace {
+
 [[nodiscard]] QString SerializeCustomEmojiId(const CustomEmojiId &id) {
-	const auto &info = id.set;
-	const auto set = info.id
-		? (QString::number(info.id) + ':' + QString::number(info.accessHash))
-		: info.shortName;
-	return QString::number(id.id) + '@' + set;
+	return QString::number(id.id)
+		+ '@'
+		+ QString::number(id.set.id)
+		+ ':'
+		+ QString::number(id.set.accessHash);
 }
 
-[[nodiscard]] CustomEmojiId ParseCustomEmojiData(const QString &data) {
+[[nodiscard]] CustomEmojiId ParseCustomEmojiData(QStringView data) {
 	const auto parts = data.split('@');
 	if (parts.size() != 2) {
 		return {};
@@ -43,23 +47,20 @@ struct CustomEmojiId {
 		return {};
 	}
 	const auto second = parts[1].split(':');
-	if (const auto set = second[0].toULongLong()) {
-		return {
-			.set = {.id = set, .accessHash = second[1].toULongLong() },
-			.id = id
-		};
-	}
 	return {
-		.set = {.shortName = second[1] },
+		.set = {
+			.id = second[0].toULongLong(),
+			.accessHash = second[1].toULongLong(),
+		},
 		.id = id
 	};
 }
 
-class CustomEmojiWithData : public Ui::Text::CustomEmoji {
+class CustomEmojiWithData {
 public:
 	explicit CustomEmojiWithData(const QString &data);
 
-	QString entityData() final override;
+	QString entityData();
 
 private:
 	const QString _data;
@@ -80,7 +81,7 @@ public:
 		not_null<DocumentData*> document,
 		Fn<void()> update);
 
-	void paint(QPainter &p, int x, int y) override;
+	void paint(QPainter &p, int x, int y, const QColor &preview);
 
 private:
 	not_null<DocumentData*> _document;
@@ -100,7 +101,7 @@ DocumentCustomEmoji::DocumentCustomEmoji(
 , _update(update) {
 }
 
-void DocumentCustomEmoji::paint(QPainter &p, int x, int y) {
+void DocumentCustomEmoji::paint(QPainter &p, int x, int y, const QColor &preview) {
 	if (!_media) {
 		_media = _document->createMediaView();
 		_media->automaticLoad(_document->stickerSetOrigin(), nullptr);
@@ -128,32 +129,112 @@ void DocumentCustomEmoji::paint(QPainter &p, int x, int y) {
 	}
 }
 
-class ResolvingCustomEmoji final : public CustomEmojiWithData {
-public:
-	ResolvingCustomEmoji(const QString &data, Fn<void()> update);
+} // namespace
 
-	void paint(QPainter &p, int x, int y) override;
+class CustomEmojiLoader final
+	: public Ui::CustomEmoji::Loader
+	, public base::has_weak_ptr {
+public:
+	CustomEmojiLoader(not_null<Session*> owner, const CustomEmojiId id);
+
+	[[nodiscard]] bool resolving() const;
+	void resolved(not_null<DocumentData*> document);
+
+	void load(Fn<void(Ui::CustomEmoji::Caching)> ready) override;
+	void cancel() override;
+	Ui::CustomEmoji::Preview preview() override;
 
 private:
-	std::optional<DocumentCustomEmoji> _resolved;
-	Fn<void()> _update;
+	struct Resolve {
+		Fn<void(Ui::CustomEmoji::Caching)> requested;
+	};
+	struct Process {
+		std::shared_ptr<DocumentMedia> media;
+		Fn<void(Ui::CustomEmoji::Caching)> callback;
+		rpl::lifetime lifetime;
+	};
+	struct Load {
+		not_null<DocumentData*> document;
+		std::unique_ptr<Process> process;
+	};
+
+	[[nodiscard]] static std::variant<Resolve, Load> InitialState(
+		not_null<Session*> owner,
+		const CustomEmojiId &id);
+
+	std::variant<Resolve, Load> _state;
 
 };
 
-ResolvingCustomEmoji::ResolvingCustomEmoji(
-	const QString &data,
-	Fn<void()> update)
-: CustomEmojiWithData(data)
-, _update(update) {
+CustomEmojiLoader::CustomEmojiLoader(
+	not_null<Session*> owner,
+	const CustomEmojiId id)
+: _state(InitialState(owner, id)) {
 }
 
-void ResolvingCustomEmoji::paint(QPainter &p, int x, int y) {
-	if (_resolved) {
-		_resolved->paint(p, x, y);
+bool CustomEmojiLoader::resolving() const {
+	return v::is<Resolve>(_state);
+}
+
+void CustomEmojiLoader::resolved(not_null<DocumentData*> document) {
+	Expects(resolving());
+
+	auto requested = std::move(v::get<Resolve>(_state).requested);
+	_state = Load{ document };
+	if (requested) {
+		load(std::move(requested));
 	}
 }
 
-} // namespace
+void CustomEmojiLoader::load(Fn<void(Ui::CustomEmoji::Caching)> ready) {
+	if (const auto resolve = std::get_if<Resolve>(&_state)) {
+		resolve->requested = std::move(ready);
+	} else if (const auto load = std::get_if<Load>(&_state)) {
+		if (!load->process) {
+			load->process = std::make_unique<Process>(Process{
+				.media = load->document->createMediaView(),
+				.callback = std::move(ready),
+			});
+			load->process->media->checkStickerLarge();
+		} else {
+			load->process->callback = std::move(ready);
+		}
+	}
+}
+
+auto CustomEmojiLoader::InitialState(
+	not_null<Session*> owner,
+	const CustomEmojiId &id)
+-> std::variant<Resolve, Load> {
+	const auto document = owner->document(id.id);
+	if (!document->isNull()) {
+		return Load{ document };
+	}
+	return Resolve();
+}
+
+void CustomEmojiLoader::cancel() {
+	if (const auto load = std::get_if<Load>(&_state)) {
+		if (base::take(load->process)) {
+			load->document->cancel();
+		}
+	}
+}
+
+Ui::CustomEmoji::Preview CustomEmojiLoader::preview() {
+	if (const auto load = std::get_if<Load>(&_state)) {
+		if (const auto process = load->process.get()) {
+			const auto dimensions = load->document->dimensions;
+			if (!dimensions.width()) {
+				return {};
+			}
+			const auto scale = (Ui::Emoji::GetSizeNormal() * 1.)
+				/ (style::DevicePixelRatio() * dimensions.width());
+			return { process->media->thumbnailPath(), scale };
+		}
+	}
+	return {};
+}
 
 CustomEmojiManager::CustomEmojiManager(not_null<Session*> owner)
 : _owner(owner) {
@@ -165,14 +246,80 @@ std::unique_ptr<Ui::Text::CustomEmoji> CustomEmojiManager::create(
 		const QString &data,
 		Fn<void()> update) {
 	const auto parsed = ParseCustomEmojiData(data);
-	if (!parsed.id) {
+	if (!parsed.id || !parsed.set.id) {
 		return nullptr;
 	}
-	const auto document = _owner->document(parsed.id);
-	if (!document->isNull()) {
-		return std::make_unique<DocumentCustomEmoji>(data, document, update);
+	auto i = _instances.find(parsed.set.id);
+	if (i == end(_instances)) {
+		i = _instances.emplace(parsed.set.id).first;
 	}
-	return std::make_unique<ResolvingCustomEmoji>(data, update);
+	auto j = i->second.find(parsed.id);
+	if (j == end(i->second)) {
+		using Loading = Ui::CustomEmoji::Loading;
+		auto loader = std::make_unique<CustomEmojiLoader>(_owner, parsed);
+		if (loader->resolving()) {
+			_loaders[parsed.id].push_back(base::make_weak(loader.get()));
+		}
+		j = i->second.emplace(
+			parsed.id,
+			std::make_unique<Ui::CustomEmoji::Instance>(data, Loading{
+				std::move(loader),
+				Ui::CustomEmoji::Preview()
+			})).first;
+	}
+	requestSetIfNeeded(parsed);
+
+	return std::make_unique<Ui::CustomEmoji::Object>(j->second.get());
+}
+
+void CustomEmojiManager::requestSetIfNeeded(const CustomEmojiId &id) {
+	const auto setId = id.set.id;
+	auto i = _sets.find(setId);
+	if (i == end(_sets)) {
+		i = _sets.emplace(setId).first;
+	}
+	if (i->second.documents.contains(id.id)) {
+		return;
+	} else if (!i->second.waiting.emplace(id.id).second
+		|| i->second.requestId) {
+		return;
+	}
+	const auto api = &_owner->session().api();
+	i->second.requestId = api->request(MTPmessages_GetStickerSet(
+		InputStickerSet(id.set),
+		MTP_int(i->second.hash)
+	)).done([=](const MTPmessages_StickerSet &result) {
+		const auto i = _sets.find(setId);
+		Assert(i != end(_sets));
+		i->second.requestId = 0;
+		result.match([&](const MTPDmessages_stickerSet &data) {
+			data.vset().match([&](const MTPDstickerSet &data) {
+				i->second.hash = data.vhash().v;
+			});
+			for (const auto &entry : data.vdocuments().v) {
+				const auto document = _owner->processDocument(entry);
+				const auto id = document->id;
+				i->second.documents.emplace(id);
+				i->second.waiting.remove(id);
+				if (const auto loaders = _loaders.take(id)) {
+					for (const auto &weak : *loaders) {
+						if (const auto strong = weak.get()) {
+							strong->resolved(document);
+						}
+					}
+				}
+			}
+		}, [&](const MTPDmessages_stickerSetNotModified &) {
+		});
+		for (const auto &id : base::take(i->second.waiting)) {
+			DEBUG_LOG(("API Error: Sticker '%1' not found for emoji.").arg(id));
+		}
+	}).fail([=] {
+		const auto i = _sets.find(setId);
+		Assert(i != end(_sets));
+		i->second.requestId = 0;
+		LOG(("API Error: Failed getting set '%1' for emoji.").arg(setId));
+	}).send();
 }
 
 Main::Session &CustomEmojiManager::session() const {
@@ -192,17 +339,18 @@ void FillTestCustomEmoji(
 		auto length = 0;
 		if (const auto emoji = Ui::Emoji::Find(ch, end, &length)) {
 			if (const auto found = pack->stickerForEmoji(emoji)) {
-				Expects(found.document->sticker() != nullptr);
-
-				text.entities.push_back({
-					EntityType::CustomEmoji,
-					(ch - begin),
-					length,
-					SerializeCustomEmojiId({
-						found.document->sticker()->set,
-						found.document->id,
-					}),
-				});
+				Assert(found.document->sticker() != nullptr);
+				if (found.document->sticker()->set.id) {
+					text.entities.push_back({
+						EntityType::CustomEmoji,
+						(ch - begin),
+						length,
+						SerializeCustomEmojiId({
+							found.document->sticker()->set,
+							found.document->id,
+						}),
+					});
+				}
 			}
 			ch += length;
 		} else if (ch->isHighSurrogate()
diff --git a/Telegram/SourceFiles/data/stickers/data_custom_emoji.h b/Telegram/SourceFiles/data/stickers/data_custom_emoji.h
index 757b171f3..9d2c76cdb 100644
--- a/Telegram/SourceFiles/data/stickers/data_custom_emoji.h
+++ b/Telegram/SourceFiles/data/stickers/data_custom_emoji.h
@@ -7,6 +7,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #pragma once
 
+#include "ui/text/custom_emoji_instance.h"
+
+struct StickerSetIdentifier;
+
 namespace Main {
 class Session;
 } // namespace Main
@@ -14,6 +18,8 @@ class Session;
 namespace Data {
 
 class Session;
+struct CustomEmojiId;
+class CustomEmojiLoader;
 
 class CustomEmojiManager final {
 public:
@@ -28,8 +34,25 @@ public:
 	[[nodiscard]] Session &owner() const;
 
 private:
+	struct Set {
+		int32 hash = 0;
+		mtpRequestId requestId = 0;
+		base::flat_set<uint64> documents;
+		base::flat_set<uint64> waiting;
+	};
+
+	void requestSetIfNeeded(const CustomEmojiId &id);
+
 	const not_null<Session*> _owner;
 
+	base::flat_map<uint64, base::flat_map<
+		uint64,
+		std::unique_ptr<Ui::CustomEmoji::Instance>>> _instances;
+	base::flat_map<uint64, Set> _sets;
+	base::flat_map<
+		uint64,
+		std::vector<base::weak_ptr<CustomEmojiLoader>>> _loaders;
+
 };
 
 void FillTestCustomEmoji(
diff --git a/Telegram/SourceFiles/history/view/history_view_message.cpp b/Telegram/SourceFiles/history/view/history_view_message.cpp
index e3cc1d5fa..4066e0c4c 100644
--- a/Telegram/SourceFiles/history/view/history_view_message.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_message.cpp
@@ -1242,6 +1242,10 @@ void Message::paintText(
 	p.setPen(stm->historyTextFg);
 	p.setFont(st::msgFont);
 	item->_text.draw(p, trect.x(), trect.y(), trect.width(), style::al_left, 0, -1, context.selection);
+	if (!_heavyCustomEmoji && item->_text.hasCustomEmoji()) {
+		_heavyCustomEmoji = true;
+		history()->owner().registerHeavyViewPart(const_cast<Message*>(this));
+	}
 }
 
 PointState Message::pointState(QPoint point) const {
@@ -1368,12 +1372,16 @@ void Message::toggleCommentsButtonRipple(bool pressed) {
 }
 
 bool Message::hasHeavyPart() const {
-	return _comments || Element::hasHeavyPart();
+	return _heavyCustomEmoji || _comments || Element::hasHeavyPart();
 }
 
 void Message::unloadHeavyPart() {
 	Element::unloadHeavyPart();
 	_comments = nullptr;
+	if (_heavyCustomEmoji) {
+		_heavyCustomEmoji = false;
+		message()->_text.unloadCustomEmoji();
+	}
 }
 
 bool Message::showForwardsFromSender(
diff --git a/Telegram/SourceFiles/history/view/history_view_message.h b/Telegram/SourceFiles/history/view/history_view_message.h
index 1bbf929d2..d6687e3e1 100644
--- a/Telegram/SourceFiles/history/view/history_view_message.h
+++ b/Telegram/SourceFiles/history/view/history_view_message.h
@@ -252,6 +252,7 @@ private:
 
 	Ui::Text::String _rightBadge;
 	int _bubbleWidthLimit = 0;
+	mutable bool _heavyCustomEmoji = false;
 
 	BottomInfo _bottomInfo;
 
diff --git a/Telegram/SourceFiles/ui/text/custom_emoji_instance.cpp b/Telegram/SourceFiles/ui/text/custom_emoji_instance.cpp
new file mode 100644
index 000000000..c4491c37b
--- /dev/null
+++ b/Telegram/SourceFiles/ui/text/custom_emoji_instance.cpp
@@ -0,0 +1,206 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "ui/text/custom_emoji_instance.h"
+
+class QPainter;
+
+namespace Ui::CustomEmoji {
+
+Preview::Preview(QPainterPath path, float64 scale)
+: _data(ScaledPath{ std::move(path), scale }) {
+}
+
+Preview::Preview(QImage image) : _data(std::move(image)) {
+}
+
+void Preview::paint(QPainter &p, int x, int y, const QColor &preview) {
+	if (const auto path = std::get_if<ScaledPath>(&_data)) {
+		paintPath(p, x, y, preview, *path);
+	} else if (const auto image = std::get_if<QImage>(&_data)) {
+		p.drawImage(x, y, *image);
+	}
+}
+
+void Preview::paintPath(
+		QPainter &p,
+		int x,
+		int y,
+		const QColor &preview,
+		const ScaledPath &path) {
+	auto hq = PainterHighQualityEnabler(p);
+	p.setBrush(preview);
+	p.setPen(Qt::NoPen);
+	const auto scale = path.scale;
+	const auto required = (scale != 1.);
+	if (required) {
+		p.save();
+	}
+	p.translate(x, y);
+	if (required) {
+		p.scale(scale, scale);
+	}
+	p.drawPath(path.path);
+	if (required) {
+		p.restore();
+	} else {
+		p.translate(-x, -y);
+	}
+}
+
+Cache::Cache(QSize size) : _size(size) {
+}
+
+int Cache::frames() const {
+	return _frames;
+}
+
+QImage Cache::frame(int index) const {
+	return QImage();
+}
+
+void Cache::reserve(int frames) {
+}
+
+Cached::Cached(std::unique_ptr<Unloader> unloader, Cache cache)
+: _unloader(std::move(unloader))
+, _cache(cache) {
+}
+
+void Cached::paint(QPainter &p, int x, int y) {
+	p.drawImage(x, y, _cache.frame(0));
+}
+
+Loading Cached::unload() {
+	return Loading(_unloader->unload(), Preview(_cache.frame(0)));
+}
+
+void Cacher::reserve(int frames) {
+	_cache.reserve(frames);
+}
+
+void Cacher::add(crl::time duration, QImage frame) {
+}
+
+Cache Cacher::takeCache() {
+	return std::move(_cache);
+}
+
+Caching::Caching(std::unique_ptr<Cacher> cacher, Preview preview)
+: _cacher(std::move(cacher))
+, _preview(std::move(preview)) {
+}
+
+void Caching::paint(QPainter &p, int x, int y, const QColor &preview) {
+	if (!_cacher->paint(p, x, y)) {
+		_preview.paint(p, x, y, preview);
+	}
+}
+
+std::optional<Cached> Caching::ready() {
+	return _cacher->ready();
+}
+
+Loading Caching::cancel() {
+	return Loading(_cacher->cancel(), std::move(_preview));
+}
+
+Loading::Loading(std::unique_ptr<Loader> loader, Preview preview)
+: _loader(std::move(loader))
+, _preview(std::move(preview)) {
+}
+
+void Loading::load(Fn<void(Caching)> done) {
+	_loader->load(crl::guard(this, std::move(done)));
+}
+
+void Loading::paint(QPainter &p, int x, int y, const QColor &preview) {
+	if (!_preview) {
+		if (auto preview = _loader->preview()) {
+			_preview = std::move(preview);
+		}
+	}
+	_preview.paint(p, x, y, preview);
+}
+
+void Loading::cancel() {
+	_loader->cancel();
+	invalidate_weak_ptrs(this);
+}
+
+Instance::Instance(const QString &entityData, Loading loading)
+: _state(std::move(loading))
+, _entityData(entityData) {
+}
+
+QString Instance::entityData() const {
+	return _entityData;
+}
+
+void Instance::paint(QPainter &p, int x, int y, const QColor &preview) {
+	if (const auto loading = std::get_if<Loading>(&_state)) {
+		loading->paint(p, x, y, preview);
+		loading->load([=](Caching caching) {
+			_state = std::move(caching);
+		});
+	} else if (const auto caching = std::get_if<Caching>(&_state)) {
+		caching->paint(p, x, y, preview);
+		if (auto cached = caching->ready()) {
+			_state = std::move(*cached);
+		}
+	} else if (const auto cached = std::get_if<Cached>(&_state)) {
+		cached->paint(p, x, y);
+	}
+}
+
+void Instance::incrementUsage() {
+	++_usage;
+}
+
+void Instance::decrementUsage() {
+	Expects(_usage > 0);
+
+	if (--_usage > 0) {
+		return;
+	}
+	if (const auto loading = std::get_if<Loading>(&_state)) {
+		loading->cancel();
+	} else if (const auto caching = std::get_if<Caching>(&_state)) {
+		_state = caching->cancel();
+	} else if (const auto cached = std::get_if<Cached>(&_state)) {
+		_state = cached->unload();
+	}
+}
+
+Object::Object(not_null<Instance*> instance)
+: _instance(instance) {
+}
+
+Object::~Object() {
+	unload();
+}
+
+QString Object::entityData() {
+	return _instance->entityData();
+}
+
+void Object::paint(QPainter &p, int x, int y, const QColor &preview) {
+	if (!_using) {
+		_using = true;
+		_instance->incrementUsage();
+	}
+	_instance->paint(p, x, y, preview);
+}
+
+void Object::unload() {
+	if (_using) {
+		_using = false;
+		_instance->decrementUsage();
+	}
+}
+
+} // namespace Ui::CustomEmoji
diff --git a/Telegram/SourceFiles/ui/text/custom_emoji_instance.h b/Telegram/SourceFiles/ui/text/custom_emoji_instance.h
new file mode 100644
index 000000000..2d917b94c
--- /dev/null
+++ b/Telegram/SourceFiles/ui/text/custom_emoji_instance.h
@@ -0,0 +1,181 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "ui/text/text_block.h"
+#include "base/weak_ptr.h"
+#include "base/bytes.h"
+
+class QColor;
+class QPainter;
+
+namespace Ui::CustomEmoji {
+
+class Preview final {
+public:
+	Preview() = default;
+	Preview(QImage image);
+	Preview(QPainterPath path, float64 scale);
+
+	void paint(QPainter &p, int x, int y, const QColor &preview);
+
+	[[nodiscard]] explicit operator bool() const {
+		return !v::is_null(_data);
+	}
+
+private:
+	struct ScaledPath {
+		QPainterPath path;
+		float64 scale = 1.;
+	};
+
+	void paintPath(
+		QPainter &p,
+		int x,
+		int y,
+		const QColor &preview,
+		const ScaledPath &path);
+
+	std::variant<v::null_t, ScaledPath, QImage> _data;
+
+};
+
+class Cache final {
+public:
+	Cache(QSize size);
+
+	[[nodiscard]] int frames() const;
+	[[nodiscard]] QImage frame(int index) const;
+	void reserve(int frames);
+
+private:
+	static constexpr auto kPerRow = 30;
+
+	std::vector<bytes::vector> _bytes;
+	std::vector<int> _durations;
+	QSize _size;
+	int _frames = 0;
+
+};
+
+class Loader;
+class Loading;
+
+class Unloader {
+public:
+	[[nodiscard]] virtual std::unique_ptr<Loader> unload() = 0;
+	virtual ~Unloader() = default;
+};
+
+class Cached final {
+public:
+	Cached(std::unique_ptr<Unloader> unloader, Cache cache);
+
+	void paint(QPainter &p, int x, int y);
+	[[nodiscard]] Loading unload();
+
+private:
+	std::unique_ptr<Unloader> _unloader;
+	Cache _cache;
+
+};
+
+class Cacher {
+public:
+	virtual bool paint(QPainter &p, int x, int y) = 0;
+	[[nodiscard]] virtual std::optional<Cached> ready() = 0;
+	[[nodiscard]] virtual std::unique_ptr<Loader> cancel() = 0;
+	virtual ~Cacher() = default;
+
+protected:
+	void reserve(int frames);
+	void add(crl::time duration, QImage frame);
+
+	[[nodiscard]] Cache takeCache();
+
+private:
+	Cache _cache;
+
+};
+
+class Caching final {
+public:
+	Caching(std::unique_ptr<Cacher> cacher, Preview preview);
+	void paint(QPainter &p, int x, int y, const QColor &preview);
+
+	[[nodiscard]] std::optional<Cached> ready();
+	[[nodiscard]] Loading cancel();
+
+private:
+	std::unique_ptr<Cacher> _cacher;
+	Preview _preview;
+
+};
+
+class Loader {
+public:
+	virtual void load(Fn<void(Caching)> ready) = 0;
+	virtual void cancel() = 0;
+	[[nodiscard]] virtual Preview preview() = 0;
+	virtual ~Loader() = default;
+};
+
+class Loading final : public base::has_weak_ptr {
+public:
+	Loading(std::unique_ptr<Loader> loader, Preview preview);
+
+	void load(Fn<void(Caching)> done);
+	void paint(QPainter &p, int x, int y, const QColor &preview);
+	void cancel();
+
+private:
+	std::unique_ptr<Loader> _loader;
+	Preview _preview;
+
+};
+
+class Instance final {
+public:
+	Instance(const QString &entityData, Loading loading);
+
+	[[nodiscard]] QString entityData() const;
+	void paint(QPainter &p, int x, int y, const QColor &preview);
+
+	void incrementUsage();
+	void decrementUsage();
+
+private:
+	std::variant<Loading, Caching, Cached> _state;
+	QString _entityData;
+
+	int _usage = 0;
+
+};
+
+class Delegate {
+public:
+	[[nodiscard]] virtual bool paused() = 0;
+	virtual ~Delegate() = default;
+};
+
+class Object final : public Ui::Text::CustomEmoji {
+public:
+	Object(not_null<Instance*> instance);
+	~Object();
+
+	QString entityData() override;
+	void paint(QPainter &p, int x, int y, const QColor &preview) override;
+	void unload() override;
+
+private:
+	const not_null<Instance*> _instance;
+	bool _using = false;
+
+};
+
+} // namespace Ui::CustomEmoji
diff --git a/Telegram/cmake/td_ui.cmake b/Telegram/cmake/td_ui.cmake
index 584630f3c..8813ecd3c 100644
--- a/Telegram/cmake/td_ui.cmake
+++ b/Telegram/cmake/td_ui.cmake
@@ -232,6 +232,8 @@ PRIVATE
     ui/effects/round_checkbox.h
     ui/effects/scroll_content_shadow.cpp
     ui/effects/scroll_content_shadow.h
+    ui/text/custom_emoji_instance.cpp
+    ui/text/custom_emoji_instance.h
     ui/text/format_song_name.cpp
     ui/text/format_song_name.h
     ui/text/format_values.cpp