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Telegram/SourceFiles/chat_helpers/stickers_emoji_pack.h

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+/*
+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_isolated_emoji.h"
+#include "ui/image/image.h"
+#include "base/timer.h"
+
+#include <crl/crl_object_on_queue.h>
+
+class HistoryItem;
+class DocumentData;
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Lottie {
+class SinglePlayer;
+class FrameProvider;
+struct ColorReplacements;
+} // namespace Lottie
+
+namespace Ui {
+namespace Text {
+class String;
+} // namespace Text
+namespace Emoji {
+class UniversalImages;
+} // namespace Emoji
+} // namespace Ui
+
+namespace HistoryView {
+class Element;
+} // namespace HistoryView
+
+namespace Stickers {
+
+using IsolatedEmoji = Ui::Text::IsolatedEmoji;
+
+struct LargeEmojiImage {
+	std::optional<Image> image;
+	FnMut<void()> load;
+
+	[[nodiscard]] static QSize Size();
+};
+
+enum class EffectType : uint8 {
+	EmojiInteraction,
+	PremiumSticker,
+	MessageEffect,
+};
+
+class EmojiPack final {
+public:
+	using ViewElement = HistoryView::Element;
+
+	struct Sticker {
+		DocumentData *document = nullptr;
+		const Lottie::ColorReplacements *replacements = nullptr;
+
+		[[nodiscard]] bool empty() const {
+			return (document == nullptr);
+		}
+		[[nodiscard]] explicit operator bool() const {
+			return !empty();
+		}
+	};
+
+	explicit EmojiPack(not_null<Main::Session*> session);
+	~EmojiPack();
+
+	bool add(not_null<ViewElement*> view);
+	void remove(not_null<const ViewElement*> view);
+
+	[[nodiscard]] Sticker stickerForEmoji(EmojiPtr emoji);
+	[[nodiscard]] Sticker stickerForEmoji(const IsolatedEmoji &emoji);
+	[[nodiscard]] std::shared_ptr<LargeEmojiImage> image(EmojiPtr emoji);
+
+	[[nodiscard]] EmojiPtr chooseInteractionEmoji(
+		not_null<HistoryItem*> item) const;
+	[[nodiscard]] EmojiPtr chooseInteractionEmoji(
+		const QString &emoticon) const;
+	[[nodiscard]] auto animationsForEmoji(EmojiPtr emoji) const
+		-> const base::flat_map<int, not_null<DocumentData*>> &;
+	[[nodiscard]] bool hasAnimationsFor(not_null<HistoryItem*> item) const;
+	[[nodiscard]] bool hasAnimationsFor(const QString &emoticon) const;
+	[[nodiscard]] int animationsVersion() const {
+		return _animationsVersion;
+	}
+	[[nodiscard]] rpl::producer<> refreshed() const {
+		return _refreshed.events();
+	}
+
+	[[nodiscard]] std::unique_ptr<Lottie::SinglePlayer> effectPlayer(
+		not_null<DocumentData*> document,
+		QByteArray data,
+		QString filepath,
+		EffectType type);
+
+private:
+	class ImageLoader;
+
+	struct ProviderKey {
+		not_null<DocumentData*> document;
+		Stickers::EffectType type = {};
+
+		friend inline auto operator<=>(
+			const ProviderKey &,
+			const ProviderKey &) = default;
+		friend inline bool operator==(
+			const ProviderKey &,
+			const ProviderKey &) = default;
+	};
+
+	void refresh();
+	void refreshDelayed();
+	void refreshAnimations();
+	void applySet(const MTPDmessages_stickerSet &data);
+	void applyPack(
+		const MTPDstickerPack &data,
+		const base::flat_map<uint64, not_null<DocumentData*>> &map);
+	void applyAnimationsSet(const MTPDmessages_stickerSet &data);
+	[[nodiscard]] auto collectStickers(const QVector<MTPDocument> &list) const
+		-> base::flat_map<uint64, not_null<DocumentData*>>;
+	[[nodiscard]] auto collectAnimationsIndices(
+		const QVector<MTPStickerPack> &packs) const
+		-> base::flat_map<uint64, base::flat_set<int>>;
+	void refreshAll();
+	void refreshItems(EmojiPtr emoji);
+	void refreshItems(const base::flat_set<not_null<ViewElement*>> &list);
+	void refreshItems(const base::flat_set<not_null<HistoryItem*>> &items);
+
+	const not_null<Main::Session*> _session;
+	base::flat_map<EmojiPtr, not_null<DocumentData*>> _map;
+	base::flat_map<
+		IsolatedEmoji,
+		base::flat_set<not_null<HistoryView::Element*>>> _items;
+	base::flat_map<EmojiPtr, std::weak_ptr<LargeEmojiImage>> _images;
+	mtpRequestId _requestId = 0;
+
+	base::flat_set<not_null<HistoryView::Element*>> _onlyCustomItems;
+
+	int _animationsVersion = 0;
+	base::flat_map<
+		EmojiPtr,
+		base::flat_map<int, not_null<DocumentData*>>> _animations;
+	mtpRequestId _animationsRequestId = 0;
+
+	base::flat_map<
+		ProviderKey,
+		std::weak_ptr<Lottie::FrameProvider>> _sharedProviders;
+
+	rpl::event_stream<> _refreshed;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Stickers