Initial animated emoji implementation.

Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.cpp

@@ -0,0 +1,91 @@
+/*
+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 "chat_helpers/stickers_emoji_pack.h"
+
+#include "history/history_item.h"
+#include "ui/emoji_config.h"
+#include "main/main_session.h"
+#include "data/data_session.h"
+#include "data/data_document.h"
+#include "apiwrap.h"
+
+namespace Stickers {
+namespace {
+
+constexpr auto kRefreshTimeout = TimeId(7200);
+
+} // namespace
+
+EmojiPack::EmojiPack(not_null<Main::Session*> session) : _session(session) {
+	refresh();
+}
+
+DocumentData *EmojiPack::stickerForEmoji(not_null<HistoryItem*> item) {
+	const auto text = item->originalText().text.trimmed();
+	auto length = 0;
+	const auto emoji = Ui::Emoji::Find(text, &length);
+	if (!emoji || length != text.size()) {
+		return nullptr;
+	}
+	const auto i = _map.find(emoji);
+	if (i != end(_map)) {
+		return i->second;
+	}
+	return nullptr;
+}
+
+void EmojiPack::refresh() {
+	if (_requestId) {
+		return;
+	}
+	_requestId = _session->api().request(MTPmessages_GetStickerSet(
+		MTP_inputStickerSetAnimatedEmoji()
+	)).done([=](const MTPmessages_StickerSet &result) {
+		refreshDelayed();
+		result.match([&](const MTPDmessages_stickerSet &data) {
+			auto map = base::flat_map<uint64, not_null<DocumentData*>>();
+			for (const auto &sticker : data.vdocuments().v) {
+				const auto document = _session->data().processDocument(
+					sticker);
+				if (document->sticker()) {
+					map.emplace(document->id, document);
+				}
+			}
+			for (const auto &pack : data.vpacks().v) {
+				pack.match([&](const MTPDstickerPack &data) {
+					const auto emoji = [&] {
+						return Ui::Emoji::Find(qs(data.vemoticon()));
+					}();
+					const auto document = [&]() -> DocumentData* {
+						for (const auto &id : data.vdocuments().v) {
+							const auto i = map.find(id.v);
+							if (i != end(map)) {
+								return i->second.get();
+							}
+						}
+						return nullptr;
+					}();
+					if (emoji && document) {
+						_map.emplace_or_assign(emoji, document);
+					}
+				});
+			}
+		});
+		int a = 0;
+	}).fail([=](const RPCError &error) {
+		refreshDelayed();
+	}).send();
+}
+
+void EmojiPack::refreshDelayed() {
+	App::CallDelayed(kRefreshTimeout, _session, [=] {
+		refresh();
+	});
+}
+
+} // namespace Stickers

Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.h

@@ -0,0 +1,38 @@
+/*
+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
+
+namespace Main {
+class Session;
+} // namespace Main
+
+class HistoryItem;
+class DocumentData;
+
+namespace Stickers {
+
+class EmojiPack final {
+public:
+	explicit EmojiPack(not_null<Main::Session*> session);
+
+	[[nodiscard]] DocumentData *stickerForEmoji(not_null<HistoryItem*> item);
+
+private:
+	void refresh();
+	void refreshDelayed();
+
+	not_null<Main::Session*> _session;
+	base::flat_set<not_null<HistoryItem*>> _notLoaded;
+	base::flat_map<EmojiPtr, not_null<DocumentData*>> _map;
+	mtpRequestId _requestId = 0;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Stickers

Telegram/SourceFiles/history/media/history_media_sticker.cpp

@@ -46,13 +46,30 @@ HistorySticker::~HistorySticker() {
 	unloadLottie();
 }
 
+bool HistorySticker::isEmojiSticker() const {
+	return (_parent->data()->media() == nullptr);
+}
+
 QSize HistorySticker::countOptimalSize() {
 	auto sticker = _data->sticker();
 
-	if (!_packLink && sticker && sticker->set.type() != mtpc_inputStickerSetEmpty) {
-		_packLink = std::make_shared<LambdaClickHandler>([document = _data] {
-			StickerSetBox::Show(App::wnd()->sessionController(), document);
-		});
+	if (!_packLink) {
+		if (isEmojiSticker()) {
+			const auto weak = base::make_weak(this);
+			_packLink = std::make_shared<LambdaClickHandler>([weak] {
+				const auto that = weak.get();
+				if (!that) {
+					return;
+				}
+				that->_lottieOncePlayed = false;
+				that->_parent->data()->history()->owner().requestViewRepaint(
+					that->_parent);
+			});
+		} else if (sticker && sticker->set.type() != mtpc_inputStickerSetEmpty) {
+			_packLink = std::make_shared<LambdaClickHandler>([document = _data] {
+				StickerSetBox::Show(App::wnd()->sessionController(), document);
+			});
+		}
 	}
 	_pixw = _data->dimensions.width();
 	_pixh = _data->dimensions.height();
@@ -213,7 +230,8 @@ void HistorySticker::draw(
 			frame.image);
 
 		const auto paused = App::wnd()->sessionController()->isGifPausedAtLeastFor(Window::GifPauseReason::Any);
-		const auto playOnce = !_data->session().settings().loopAnimatedStickers();
+		const auto playOnce = isEmojiSticker()
+			|| !_data->session().settings().loopAnimatedStickers();
 		if (!paused
 			&& (!playOnce || frame.index != 0 || !_lottieOncePlayed)
 			&& _lottie->markFrameShown()

Telegram/SourceFiles/history/media/history_media_sticker.h

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #pragma once
 
 #include "history/media/history_media.h"
+#include "base/weak_ptr.h"
 #include "base/timer.h"
 
 struct HistoryMessageVia;
@@ -18,7 +19,7 @@ namespace Lottie {
 class SinglePlayer;
 } // namespace Lottie
 
-class HistorySticker : public HistoryMedia {
+class HistorySticker : public HistoryMedia, public base::has_weak_ptr {
 public:
 	HistorySticker(
 		not_null<Element*> parent,
@@ -63,6 +64,8 @@ public:
 	}
 
 private:
+	[[nodiscard]] bool isEmojiSticker() const;
+
 	QSize countOptimalSize() override;
 	QSize countCurrentSize(int newWidth) override;
 

Telegram/SourceFiles/history/view/history_view_element.cpp

@@ -13,7 +13,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_item.h"
 #include "history/media/history_media.h"
 #include "history/media/history_media_grouped.h"
+#include "history/media/history_media_sticker.h"
 #include "history/history.h"
+#include "main/main_session.h"
+#include "chat_helpers/stickers_emoji_pack.h"
 #include "data/data_session.h"
 #include "data/data_groups.h"
 #include "data/data_media_types.h"
@@ -338,8 +341,11 @@ void Element::refreshMedia() {
 			return;
 		}
 	}
+	const auto emojiStickers = &history()->session().emojiStickersPack();
 	if (_data->media()) {
 		_media = _data->media()->createView(this);
+	} else if (const auto document = emojiStickers->stickerForEmoji(_data)) {
+		_media = std::make_unique<HistorySticker>(this, document);
 	} else {
 		_media = nullptr;
 	}

Telegram/SourceFiles/main/main_session.cpp

@@ -24,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_instance.h"
 #include "window/section_widget.h"
 #include "chat_helpers/tabbed_selector.h"
+#include "chat_helpers/stickers_emoji_pack.h"
 #include "boxes/send_files_box.h"
 #include "ui/widgets/input_fields.h"
 #include "support/support_common.h"
@@ -468,6 +469,7 @@ Session::Session(
 , _notifications(std::make_unique<Window::Notifications::System>(this))
 , _data(std::make_unique<Data::Session>(this))
 , _user(_data->processUser(user))
+, _emojiStickersPack(std::make_unique<Stickers::EmojiPack>(this))
 , _changelogs(Core::Changelogs::Create(this))
 , _supportHelper(Support::Helper::Create(this)) {
 	_saveDataTimer.setCallback([=] {

Telegram/SourceFiles/main/main_session.h

@@ -51,6 +51,10 @@ namespace ChatHelpers {
 enum class SelectorTab;
 } // namespace ChatHelpers
 
+namespace Stickers {
+class EmojiPack;
+} // namespace Stickers;
+
 namespace Core {
 class Changelogs;
 } // namespace Core
@@ -328,6 +332,9 @@ public:
 	Storage::Facade &storage() {
 		return *_storage;
 	}
+	Stickers::EmojiPack &emojiStickersPack() {
+		return *_emojiStickersPack;
+	}
 
 	base::Observable<void> &downloaderTaskFinished();
 
@@ -391,6 +398,9 @@ private:
 	const std::unique_ptr<Data::Session> _data;
 	const not_null<UserData*> _user;
 
+	// _emojiStickersPack depends on _data.
+	const std::unique_ptr<Stickers::EmojiPack> _emojiStickersPack;
+
 	// _changelogs depends on _data, subscribes on chats loading event.
 	const std::unique_ptr<Core::Changelogs> _changelogs;
 

Telegram/gyp/telegram_sources.txt

@@ -121,6 +121,8 @@
 <(src_loc)/chat_helpers/message_field.h
 <(src_loc)/chat_helpers/stickers.cpp
 <(src_loc)/chat_helpers/stickers.h
+<(src_loc)/chat_helpers/stickers_emoji_pack.cpp
+<(src_loc)/chat_helpers/stickers_emoji_pack.h
 <(src_loc)/chat_helpers/stickers_list_widget.cpp
 <(src_loc)/chat_helpers/stickers_list_widget.h
 <(src_loc)/chat_helpers/tabbed_panel.cpp