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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright 2019 Red Hat, Inc.
* Copyrgith 2021 Igalia S.L.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gpowerprofilemonitor.h"
#include "gpowerprofilemonitordbus.h"
#include "gioerror.h"
#include "ginitable.h"
#include "giomodule-priv.h"
#include "glibintl.h"
#include "glib/gstdio.h"
#include "gcancellable.h"
#include "gdbusproxy.h"
#include "gdbusnamewatching.h"
#define G_POWER_PROFILE_MONITOR_DBUS_GET_INITABLE_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), G_TYPE_INITABLE, GInitable))
static void g_power_profile_monitor_dbus_iface_init (GPowerProfileMonitorInterface *iface);
static void g_power_profile_monitor_dbus_initable_iface_init (GInitableIface *iface);
struct _GPowerProfileMonitorDBus
{
GObject parent_instance;
guint watch_id;
GCancellable *cancellable;
GDBusProxy *proxy;
gulong signal_id;
gboolean power_saver_enabled;
};
typedef enum
{
PROP_POWER_SAVER_ENABLED = 1,
} GPowerProfileMonitorDBusProperty;
#define POWERPROFILES_DBUS_NAME "net.hadess.PowerProfiles"
#define POWERPROFILES_DBUS_IFACE "net.hadess.PowerProfiles"
#define POWERPROFILES_DBUS_PATH "/net/hadess/PowerProfiles"
G_DEFINE_TYPE_WITH_CODE (GPowerProfileMonitorDBus, g_power_profile_monitor_dbus, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
g_power_profile_monitor_dbus_initable_iface_init)
G_IMPLEMENT_INTERFACE (G_TYPE_POWER_PROFILE_MONITOR,
g_power_profile_monitor_dbus_iface_init)
_g_io_modules_ensure_extension_points_registered ();
g_io_extension_point_implement (G_POWER_PROFILE_MONITOR_EXTENSION_POINT_NAME,
g_define_type_id,
"dbus",
30))
static void
g_power_profile_monitor_dbus_init (GPowerProfileMonitorDBus *dbus)
{
dbus->power_saver_enabled = FALSE;
}
static void
ppd_properties_changed_cb (GDBusProxy *proxy,
GVariant *changed_properties,
GStrv *invalidated_properties,
gpointer user_data)
{
GPowerProfileMonitorDBus *dbus = user_data;
const char *active_profile;
gboolean enabled;
if (!g_variant_lookup (changed_properties, "ActiveProfile", "&s", &active_profile))
return;
enabled = g_strcmp0 (active_profile, "power-saver") == 0;
if (enabled == dbus->power_saver_enabled)
return;
dbus->power_saver_enabled = enabled;
g_object_notify (G_OBJECT (dbus), "power-saver-enabled");
}
static void
ppd_proxy_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
GPowerProfileMonitorDBus *dbus = user_data;
GVariant *active_profile_variant;
GDBusProxy *proxy;
GError *error = NULL;
const char *active_profile;
gboolean power_saver_enabled;
proxy = g_dbus_proxy_new_finish (res, &error);
if (!proxy)
{
g_debug ("GPowerProfileMonitorDBus: Failed to create PowerProfiles D-Bus proxy: %s",
error->message);
g_error_free (error);
return;
}
active_profile_variant = g_dbus_proxy_get_cached_property (proxy, "ActiveProfile");
if (active_profile_variant != NULL &&
g_variant_is_of_type (active_profile_variant, G_VARIANT_TYPE_STRING))
{
active_profile = g_variant_get_string (active_profile_variant, NULL);
power_saver_enabled = g_strcmp0 (active_profile, "power-saver") == 0;
if (power_saver_enabled != dbus->power_saver_enabled)
{
dbus->power_saver_enabled = power_saver_enabled;
g_object_notify (G_OBJECT (dbus), "power-saver-enabled");
}
}
g_clear_pointer (&active_profile_variant, g_variant_unref);
dbus->signal_id = g_signal_connect (G_OBJECT (proxy), "g-properties-changed",
G_CALLBACK (ppd_properties_changed_cb), dbus);
dbus->proxy = g_steal_pointer (&proxy);
}
static void
ppd_appeared_cb (GDBusConnection *connection,
const gchar *name,
const gchar *name_owner,
gpointer user_data)
{
GPowerProfileMonitorDBus *dbus = user_data;
g_dbus_proxy_new (connection,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
POWERPROFILES_DBUS_NAME,
POWERPROFILES_DBUS_PATH,
POWERPROFILES_DBUS_IFACE,
dbus->cancellable,
ppd_proxy_cb,
dbus);
}
static void
ppd_vanished_cb (GDBusConnection *connection,
const gchar *name,
gpointer user_data)
{
GPowerProfileMonitorDBus *dbus = user_data;
g_clear_signal_handler (&dbus->signal_id, dbus->proxy);
g_clear_object (&dbus->proxy);
dbus->power_saver_enabled = FALSE;
g_object_notify (G_OBJECT (dbus), "power-saver-enabled");
}
static void
g_power_profile_monitor_dbus_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GPowerProfileMonitorDBus *dbus = G_POWER_PROFILE_MONITOR_DBUS (object);
switch ((GPowerProfileMonitorDBusProperty) prop_id)
{
case PROP_POWER_SAVER_ENABLED:
g_value_set_boolean (value, dbus->power_saver_enabled);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static gboolean
g_power_profile_monitor_dbus_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
GPowerProfileMonitorDBus *dbus = G_POWER_PROFILE_MONITOR_DBUS (initable);
dbus->cancellable = g_cancellable_new ();
dbus->watch_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
POWERPROFILES_DBUS_NAME,
G_BUS_NAME_WATCHER_FLAGS_AUTO_START,
ppd_appeared_cb,
ppd_vanished_cb,
dbus,
NULL);
return TRUE;
}
static void
g_power_profile_monitor_dbus_finalize (GObject *object)
{
GPowerProfileMonitorDBus *dbus = G_POWER_PROFILE_MONITOR_DBUS (object);
g_cancellable_cancel (dbus->cancellable);
g_clear_object (&dbus->cancellable);
g_clear_signal_handler (&dbus->signal_id, dbus->proxy);
g_clear_object (&dbus->proxy);
g_clear_handle_id (&dbus->watch_id, g_bus_unwatch_name);
G_OBJECT_CLASS (g_power_profile_monitor_dbus_parent_class)->finalize (object);
}
static void
g_power_profile_monitor_dbus_class_init (GPowerProfileMonitorDBusClass *nl_class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (nl_class);
gobject_class->get_property = g_power_profile_monitor_dbus_get_property;
gobject_class->finalize = g_power_profile_monitor_dbus_finalize;
g_object_class_override_property (gobject_class, PROP_POWER_SAVER_ENABLED, "power-saver-enabled");
}
static void
g_power_profile_monitor_dbus_iface_init (GPowerProfileMonitorInterface *monitor_iface)
{
}
static void
g_power_profile_monitor_dbus_initable_iface_init (GInitableIface *iface)
{
iface->init = g_power_profile_monitor_dbus_initable_init;
}
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