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Telegram/lib_ui/ui/text/text_isolated_emoji.h

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#pragma once
+
+#include "base/variant.h"
+#include "ui/emoji_config.h"
+
+namespace Ui::Text {
+
+inline constexpr auto kIsolatedEmojiLimit = 3;
+
+struct IsolatedEmoji {
+	using Item = std::variant<v::null_t, EmojiPtr, QString>;
+	using Items = std::array<Item, kIsolatedEmojiLimit>;
+	Items items = {};
+
+	[[nodiscard]] bool empty() const {
+		return v::is_null(items[0]);
+	}
+	[[nodiscard]] explicit operator bool() const {
+		return !empty();
+	}
+	[[nodiscard]] bool operator<(const IsolatedEmoji &other) const {
+		return items < other.items;
+	}
+	[[nodiscard]] bool operator==(const IsolatedEmoji &other) const {
+		return items == other.items;
+	}
+	[[nodiscard]] bool operator>(const IsolatedEmoji &other) const {
+		return other < *this;
+	}
+	[[nodiscard]] bool operator<=(const IsolatedEmoji &other) const {
+		return !(other < *this);
+	}
+	[[nodiscard]] bool operator>=(const IsolatedEmoji &other) const {
+		return !(*this < other);
+	}
+	[[nodiscard]] bool operator!=(const IsolatedEmoji &other) const {
+		return !(*this == other);
+	}
+};
+
+struct OnlyCustomEmoji {
+	struct Item {
+		QString entityData;
+		int spacesBefore = 0;
+	};
+	std::vector<std::vector<Item>> lines;
+
+	[[nodiscard]] bool empty() const {
+		return lines.empty();
+	}
+	[[nodiscard]] explicit operator bool() const {
+		return !empty();
+	}
+};
+
+} // namespace Ui::Text