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Telegram/SourceFiles/chat_helpers/spellchecker_common.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
+
+#ifndef TDESKTOP_DISABLE_SPELLCHECK
+
+#include "storage/storage_cloud_blob.h"
+#include "base/unique_qptr.h"
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Spellchecker {
+
+struct Dict : public Storage::CloudBlob::Blob {
+};
+
+int64 GetDownloadSize(int id);
+MTP::DedicatedLoader::Location GetDownloadLocation(int id);
+
+[[nodiscard]] QString DictionariesPath();
+[[nodiscard]] QString DictPathByLangId(int langId);
+bool UnpackDictionary(const QString &path, int langId);
+[[nodiscard]] bool DictionaryExists(int langId);
+bool RemoveDictionary(int langId);
+[[nodiscard]] bool IsEn(int langId);
+
+bool WriteDefaultDictionary();
+std::vector<Dict> Dictionaries();
+
+void Start(not_null<Main::Session*> session);
+[[nodiscard]] rpl::producer<QString> ButtonManageDictsState(
+	not_null<Main::Session*> session);
+
+std::vector<int> DefaultLanguages();
+
+class DictLoader : public Storage::CloudBlob::BlobLoader {
+public:
+	DictLoader(
+		QObject *parent,
+		not_null<Main::Session*> session,
+		int id,
+		MTP::DedicatedLoader::Location location,
+		const QString &folder,
+		int64 size,
+		Fn<void()> destroyCallback);
+
+	void destroy() override;
+
+	rpl::lifetime &lifetime() {
+		return _lifetime;
+	}
+
+private:
+	void unpack(const QString &path) override;
+	void fail() override;
+
+	// Be sure to always call it in the main thread.
+	Fn<void()> _destroyCallback;
+
+	rpl::lifetime _lifetime;
+
+};
+
+std::shared_ptr<base::unique_qptr<DictLoader>> GlobalLoader();
+rpl::producer<int> GlobalLoaderChanged();
+
+} // namespace Spellchecker
+
+#endif // !TDESKTOP_DISABLE_SPELLCHECK