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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mash/session/session.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/message_loop/message_loop.h"
#include "mash/login/public/interfaces/login.mojom.h"
#include "mojo/shell/public/cpp/connection.h"
#include "mojo/shell/public/cpp/connector.h"
namespace {
void LogAndCallServiceRestartCallback(const std::string& url,
const base::Closure& callback) {
LOG(ERROR) << "Restarting service: " << url;
callback.Run();
}
} // namespace
namespace mash {
namespace session {
Session::Session() : connector_(nullptr), screen_locked_(false) {}
Session::~Session() {}
void Session::Initialize(mojo::Connector* connector,
const mojo::Identity& identity,
uint32_t id) {
connector_ = connector;
StartBrowserDriver();
StartWindowManager();
StartSystemUI();
StartQuickLaunch();
}
bool Session::AcceptConnection(mojo::Connection* connection) {
connection->AddInterface<mojom::Session>(this);
return true;
}
void Session::Logout() {
// TODO(beng): Notify connected listeners that login is happening, potentially
// give them the option to stop it.
mash::login::mojom::LoginPtr login;
connector_->ConnectToInterface("mojo:login", &login);
login->ShowLoginUI();
// This kills the user environment.
base::MessageLoop::current()->QuitWhenIdle();
}
void Session::SwitchUser() {
mash::login::mojom::LoginPtr login;
connector_->ConnectToInterface("mojo:login", &login);
login->SwitchUser();
}
void Session::AddScreenlockStateListener(
mojom::ScreenlockStateListenerPtr listener) {
listener->ScreenlockStateChanged(screen_locked_);
screenlock_listeners_.AddPtr(std::move(listener));
}
void Session::LockScreen() {
if (screen_locked_)
return;
screen_locked_ = true;
screenlock_listeners_.ForAllPtrs(
[](mojom::ScreenlockStateListener* listener) {
listener->ScreenlockStateChanged(true);
});
StartScreenlock();
}
void Session::UnlockScreen() {
if (!screen_locked_)
return;
screen_locked_ = false;
screenlock_listeners_.ForAllPtrs(
[](mojom::ScreenlockStateListener* listener) {
listener->ScreenlockStateChanged(false);
});
StopScreenlock();
}
void Session::Create(mojo::Connection* connection,
mojom::SessionRequest request) {
bindings_.AddBinding(this, std::move(request));
}
void Session::StartWindowManager() {
StartRestartableService(
"mojo:desktop_wm",
base::Bind(&Session::StartWindowManager,
base::Unretained(this)));
}
void Session::StartSystemUI() {
StartRestartableService("mojo:ash_sysui",
base::Bind(&Session::StartSystemUI,
base::Unretained(this)));
}
void Session::StartBrowserDriver() {
StartRestartableService(
"mojo:browser_driver",
base::Bind(&Session::StartBrowserDriver,
base::Unretained(this)));
}
void Session::StartQuickLaunch() {
StartRestartableService(
"mojo:quick_launch",
base::Bind(&Session::StartQuickLaunch,
base::Unretained(this)));
}
void Session::StartScreenlock() {
StartRestartableService(
"mojo:screenlock",
base::Bind(&Session::StartScreenlock,
base::Unretained(this)));
}
void Session::StopScreenlock() {
auto connection = connections_.find("mojo:screenlock");
DCHECK(connections_.end() != connection);
connections_.erase(connection);
}
void Session::StartRestartableService(
const std::string& url,
const base::Closure& restart_callback) {
// TODO(beng): This would be the place to insert logic that counted restarts
// to avoid infinite crash-restart loops.
std::unique_ptr<mojo::Connection> connection = connector_->Connect(url);
// Note: |connection| may be null if we've lost our connection to the shell.
if (connection) {
connection->SetConnectionLostClosure(
base::Bind(&LogAndCallServiceRestartCallback, url, restart_callback));
connection->AddInterface<mojom::Session>(this);
connections_[url] = std::move(connection);
}
}
} // namespace session
} // namespace main
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