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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_INSTALLER_UTIL_PER_INSTALL_VALUES_H_
#define CHROME_INSTALLER_UTIL_PER_INSTALL_VALUES_H_
#include <optional>
#include <string>
#include <string_view>
#include "base/values.h"
#include "base/win/win_handle_types.h"
namespace installer {
// `PerInstallValue` is used to store named persisted `base::Value` objects on a
// per-install basis. i.e., a single `base::Value` stored in a system-wide
// location for system installs, and a single `base::Value` stored per-user for
// user installs. The values are stored in the registry under
// `Google\Update\ClientState{Medium}\{ChromeAppId}\PerInstallValue` for branded
// installs.
class PerInstallValue {
public:
explicit PerInstallValue(std::wstring_view name);
PerInstallValue(const PerInstallValue&) = delete;
PerInstallValue& operator=(const PerInstallValue&) = delete;
~PerInstallValue();
// Sets/gets/deletes the PerInstallValue.
void Set(const base::Value& value);
std::optional<base::Value> Get();
void Delete();
private:
// HKLM for branded system installs, else HKCU.
const HKEY root_;
// `Google\Update\ClientState{Medium}\{ChromeAppId}\PerInstallValue` for
// branded installs.
const std::wstring key_path_;
// The registry value for the PerInstallValue, same as `name` in the
// constructor.
const std::wstring value_name_;
};
} // namespace installer
#endif // CHROME_INSTALLER_UTIL_PER_INSTALL_VALUES_H_
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