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// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PERIDOT_BIN_BASEMGR_SESSION_PROVIDER_H_
#define PERIDOT_BIN_BASEMGR_SESSION_PROVIDER_H_
#include <fuchsia/auth/cpp/fidl.h>
#include <fuchsia/device/manager/cpp/fidl.h>
#include <fuchsia/modular/auth/cpp/fidl.h>
#include <fuchsia/modular/cpp/fidl.h>
#include <fuchsia/ui/policy/cpp/fidl.h>
#include <fuchsia/ui/views/cpp/fidl.h>
#include <lib/async/cpp/future.h>
#include "peridot/bin/basemgr/session_context_impl.h"
#include "peridot/bin/basemgr/session_provider.h"
namespace modular {
class SessionProvider {
public:
// Users of SessionProvider must register a Delegate object, which provides
// functionality to SessionProvider that's outside the scope of this class.
class Delegate {
public:
// Called when SessionProvider wants to logout all users.
virtual void LogoutUsers(fit::function<void()> callback) = 0;
// Called when a session provided by SessionProvider wants to acquire
// presentation.
virtual void GetPresentation(
fidl::InterfaceRequest<fuchsia::ui::policy::Presentation> request) = 0;
};
// |on_zero_sessions| is invoked when all sessions have been deleted. This is
// meant to be a callback for BasemgrImpl to either display a base shell or
// start a new session.
SessionProvider(Delegate* const delegate,
fuchsia::sys::Launcher* const launcher,
fuchsia::device::manager::AdministratorPtr administrator,
fuchsia::modular::AppConfig sessionmgr,
fuchsia::modular::AppConfig session_shell,
fuchsia::modular::AppConfig story_shell,
bool use_session_shell_for_story_shell_factory,
fit::function<void()> on_zero_sessions);
// Starts a new sessionmgr process if there isn't one already. Returns false
// if there is an existing sessionmgr process, and does not start a new
// session. Returns true if a new session was started successfully.
bool StartSession(fuchsia::ui::views::ViewToken view_token,
fuchsia::modular::auth::AccountPtr account,
fuchsia::auth::TokenManagerPtr ledger_token_manager,
fuchsia::auth::TokenManagerPtr agent_token_manager);
// Asynchronously tears down the sessionmgr process. |callback| is invoked
// once teardown is complete or has timed out.
void Teardown(fit::function<void()> callback);
// Callback function for session_provider to invoke when there is no active
// session
void OnSessionShutdown(SessionContextImpl::ShutDownReason shutdown_reason,
bool logout_users);
// Stops the active session shell, and starts the session shell specified in
// |session_shell_config|. If no session shells are running, this has no
// effect, and will return an immediately-completed future.
FuturePtr<> SwapSessionShell(
fuchsia::modular::AppConfig session_shell_config);
// Shuts down the running session without logging any users out, which will
// effectively restart a new session with the same users.
void RestartSession(fit::function<void()> on_restart_complete);
private:
Delegate* const delegate_; // Neither owned nor copied.
fuchsia::sys::Launcher* const launcher_; // Not owned.
fuchsia::device::manager::AdministratorPtr administrator_;
const fuchsia::modular::AppConfig sessionmgr_;
const fuchsia::modular::AppConfig session_shell_;
const fuchsia::modular::AppConfig story_shell_;
bool use_session_shell_for_story_shell_factory_;
// The number of times that session had to be recovered from a crash, during a
// given timeout. If the count exceed the max retry limit, a device
// reboot will be triggered
int session_crash_recovery_counter_ = 0;
// The timestamp of when last crash happened
zx::time last_crash_time_;
fit::function<void()> on_zero_sessions_;
std::unique_ptr<SessionContextImpl> session_context_;
FXL_DISALLOW_COPY_AND_ASSIGN(SessionProvider);
};
} // namespace modular
#endif // PERIDOT_BIN_BASEMGR_SESSION_PROVIDER_H_