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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2013 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Andrea Azzarone <andrea.azzarone@canonical.com>
*/
#ifndef UNITY_USER_AUTHENTICATOR_H
#define UNITY_USER_AUTHENTICATOR_H
#include <future>
#include <functional>
#include <memory>
#include <sigc++/signal.h>
#include <string>
namespace unity
{
namespace lockscreen
{
typedef std::shared_ptr<std::promise<std::string>> PromiseAuthCodePtr;
class UserAuthenticator
{
public:
typedef std::function<void(bool)> AuthenticateEndCallback;
virtual ~UserAuthenticator() = default;
// Authenticate the user in a background thread.
virtual bool AuthenticateStart(std::string const& username, AuthenticateEndCallback const&) = 0;
sigc::signal<void, std::string, PromiseAuthCodePtr const&> echo_on_requested;
sigc::signal<void, std::string, PromiseAuthCodePtr const&> echo_off_requested;
sigc::signal<void, std::string> message_requested;
sigc::signal<void, std::string> error_requested;
sigc::signal<void> clear_prompts;
};
} // lockscreen
} // unity
#endif // UNITY_USER_AUTHENTICATOR_H
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