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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2014 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>
*/
#include "ScreenSaverDBusManager.h"
#include "ScreenSaverDBusManagerImpl.h"
#include "LockScreenSettings.h"
#include "GLibDBusProxy.h"
#include "Variant.h"
namespace unity
{
namespace lockscreen
{
namespace dbus
{
const std::string NAME = "org.gnome.ScreenSaver";
const std::string TEST_NAME = "org.gnome.Test.ScreenSaver";
const std::string INTERFACE = "org.gnome.ScreenSaver";
const std::string OBJECT_PATH = "/org/gnome/ScreenSaver";
const std::string INTROSPECTION_XML =
R"(<node>
<interface name="org.gnome.ScreenSaver">
<method name="Lock" />
<method name="GetActive">
<arg type="b" direction="out" name="value" />
</method>
<method name="GetActiveTime">
<arg type="u" direction="out" name="seconds" />
</method>
<method name="SetActive">
<arg type="b" direction="in" name="value" />
</method>
<method name="SimulateUserActivity" />
<signal name="ActiveChanged">
<arg name="new_value" type="b" />
</signal>
</interface>
</node>)";
}
//
// Start Private Implementation
//
DBusManager::Impl::Impl(DBusManager* manager, session::Manager::Ptr const& session, bool test_mode)
: manager_(manager)
, session_(session)
, test_mode_(test_mode)
, object_(std::make_shared<glib::DBusObject>(dbus::INTROSPECTION_XML, dbus::INTERFACE))
, time_(0)
{
manager_->active = false;
manager_->active.changed.connect(sigc::mem_fun(this, &DBusManager::Impl::SetActive));
// This is a workaround we use to fallback to use gnome-screensaver if the screen reader is enabled
Settings::Instance().use_legacy.changed.connect(sigc::hide(sigc::mem_fun(this, &Impl::EnsureService)));
object_->SetMethodsCallsHandler([this] (std::string const& method, GVariant* parameters) -> GVariant* {
if (method == "Lock")
{
session_->LockScreen();
}
else if (method == "GetActive")
{
return g_variant_new("(b)", manager_->active() ? TRUE : FALSE);
}
else if (method == "GetActiveTime")
{
return g_variant_new("(u)", time_ ? (time(nullptr) - time_) : 0);
}
else if (method == "SetActive")
{
if (glib::Variant(parameters).GetBool())
session_->ScreenSaverActivate();
else
session_->ScreenSaverDeactivate();
}
else if (method == "SimulateUserActivity")
{
manager_->simulate_activity.emit();
}
return nullptr;
});
EnsureService();
}
void DBusManager::Impl::EnsureService()
{
if (!Settings::Instance().use_legacy())
{
if (!server_)
{
server_ = std::make_shared<glib::DBusServer>(test_mode_ ? dbus::TEST_NAME : dbus::NAME,
G_BUS_TYPE_SESSION, G_BUS_NAME_OWNER_FLAGS_REPLACE);
server_->AddObject(object_, dbus::OBJECT_PATH);
}
}
else
{
server_.reset();
// Let's make GS to restart...
auto proxy = std::make_shared<glib::DBusProxy>("org.gnome.ScreenSaver", "/org/gnome/ScreenSaver", "org.gnome.ScreenSaver");
proxy->CallBegin("SimulateUserActivity", nullptr, [proxy] (GVariant*, glib::Error const&) {});
}
}
void DBusManager::Impl::SetActive(bool active)
{
time_ = active ? time(nullptr) : 0;
object_->EmitSignal("ActiveChanged", g_variant_new("(b)", active ? TRUE : FALSE));
}
//
// End private implemenation
//
DBusManager::DBusManager(session::Manager::Ptr const& session)
: impl_(new Impl(this, session, /* test_mode */ false))
{}
DBusManager::DBusManager(session::Manager::Ptr const& session, DBusManager::TestMode const&)
: impl_(new Impl(this, session, /* test_mode */ true))
{}
DBusManager::~DBusManager()
{}
} // lockscreen
} // unity
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