/* -*- Mode:Vala; indent-tabs-mode:nil; tab-width:4 -*- * * Copyright (C) 2011 Canonical Ltd * Copyright (C) 2015,2017 Mike Gabriel * Copyright (C) 2023 Robert Tari * * 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 . * * Authored by: Michael Terry * Mike Gabriel * Robert Tari */ public class SettingsDaemon : Object { private int sd_pid = 0; private int logind_inhibit_fd = -1; private ScreenSaverInterface screen_saver; private SessionManagerInterface session_manager; private int n_names = 2; public void start () { string[] disabled = { "org.mate.SettingsDaemon.plugins.background", "org.mate.SettingsDaemon.plugins.clipboard", "org.mate.SettingsDaemon.plugins.datetime", "org.mate.SettingsDaemon.plugins.housekeeping", "org.mate.SettingsDaemon.plugins.keybindings", "org.mate.SettingsDaemon.plugins.keyboard", "org.mate.SettingsDaemon.plugins.media-keys", "org.mate.SettingsDaemon.plugins.mouse", "org.mate.SettingsDaemon.plugins.mpris", "org.mate.SettingsDaemon.plugins.rfkill", "org.mate.SettingsDaemon.plugins.smartcard", "org.mate.SettingsDaemon.plugins.sound", "org.mate.SettingsDaemon.plugins.typing-break", "org.mate.SettingsDaemon.plugins.xrdb" }; string[] enabled = { "org.mate.SettingsDaemon.plugins.a11y-keyboard", "org.mate.SettingsDaemon.plugins.a11y-settings", "org.mate.SettingsDaemon.plugins.xrandr", "org.mate.SettingsDaemon.plugins.xsettings" }; foreach (var schema in disabled) set_plugin_enabled (schema, false); foreach (var schema in enabled) set_plugin_enabled (schema, true); /* Pretend to be MATE/GNOME session */ session_manager = new SessionManagerInterface (); GLib.Bus.own_name (BusType.SESSION, "org.gnome.SessionManager", BusNameOwnerFlags.NONE, (c) => { try { c.register_object ("/org/gnome/SessionManager", session_manager); } catch (Error e) { warning ("Failed to register /org/gnome/SessionManager: %s", e.message); } }, () => { debug ("Acquired org.gnome.SessionManager"); start_settings_daemon (); }, () => debug ("Failed to acquire name org.gnome.SessionManager")); /* The power plugin does the screen saver screen blanking and disables * the builtin X screen saver. It relies on mate-screensaver to generate * the event to trigger this (which actually comes from mate-session). * We implement the mate-screensaver interface and start the settings * daemon once it is registered on the bus so mate-screensaver is not * started when it accesses this interface */ screen_saver = new ScreenSaverInterface (); GLib.Bus.own_name (BusType.SESSION, "org.gnome.ScreenSaver", BusNameOwnerFlags.NONE, (c) => { try { c.register_object ("/org/gnome/ScreenSaver", screen_saver); } catch (Error e) { warning ("Failed to register /org/gnome/ScreenSaver: %s", e.message); } }, () => { debug ("Acquired org.gnome.ScreenSaver"); start_settings_daemon (); }, () => debug ("Failed to acquire name org.gnome.ScreenSaver")); /* The media-keys plugin inhibits the power key, but we don't want all the other keys doing things. So inhibit it ourselves */ /* NOTE: We are using the synchronous method here since there is a bug in Vala/GLib in that * g_dbus_connection_call_with_unix_fd_list_finish and g_dbus_proxy_call_with_unix_fd_list_finish * don't have the GAsyncResult as the second argument. * https://bugzilla.gnome.org/show_bug.cgi?id=688907 */ try { var b = Bus.get_sync (BusType.SYSTEM); UnixFDList fd_list; var result = b.call_with_unix_fd_list_sync ("org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "Inhibit", new Variant ("(ssss)", "handle-power-key", Environment.get_user_name (), "Arctica Greeter handling keypresses", "block"), new VariantType ("(h)"), DBusCallFlags.NONE, -1, null, out fd_list); int32 index = -1; result.get ("(h)", &index); logind_inhibit_fd = fd_list.get (index); } catch (Error e) { warning ("Failed to inhibit power keys: %s", e.message); } } public void stop () { stop_settings_daemon(); } private void set_plugin_enabled (string schema_name, bool enabled) { var source = SettingsSchemaSource.get_default (); var schema = source.lookup (schema_name, false); if (schema != null) { var settings = new Settings (schema_name); settings.set_boolean ("active", enabled); } } private void start_settings_daemon () { n_names--; if (n_names != 0) return; debug ("All bus names acquired, starting %s", Config.SD_BINARY); try { string[] argv; Shell.parse_argv (Config.SD_BINARY, out argv); Process.spawn_async (null, argv, null, SpawnFlags.SEARCH_PATH, null, out sd_pid); debug ("Launched %s. PID: %d", Config.SD_BINARY, sd_pid); } catch (Error e) { debug ("Could not start %s: %s", Config.SD_BINARY, e.message); } } private void stop_settings_daemon () { if (sd_pid != 0) { #if VALA_0_40 Posix.kill (sd_pid, Posix.Signal.KILL); #else Posix.kill (sd_pid, Posix.SIGKILL); #endif int status; Posix.waitpid (sd_pid, out status, 0); if (Process.if_exited (status)) debug ("SettingsDaemon exited with return value %d", Process.exit_status (status)); else debug ("SettingsDaemon terminated with signal %d", Process.term_sig (status)); sd_pid = 0; } } } [DBus (name="org.gnome.ScreenSaver")] public class ScreenSaverInterface : Object { public signal void active_changed (bool value); private IdleMonitor idle_monitor; private bool _active = false; private uint idle_watch = 0; public ScreenSaverInterface () { idle_monitor = new IdleMonitor (); _set_active (false); } private void _set_active (bool value) { _active = value; if (idle_watch != 0) idle_monitor.remove_watch (idle_watch); idle_watch = 0; if (value) { idle_monitor.add_user_active_watch (() => { try { set_active (false); } catch (Error pError) { error ("Panic: Screensaver activation failed: %s", pError.message); } }); } else { var timeout = AGSettings.get_integer (AGSettings.KEY_IDLE_TIMEOUT); if (timeout > 0) { idle_watch = idle_monitor.add_idle_watch (timeout * 1000, () => { try { set_active (true); } catch (Error pError) { error ("Panic: Screensaver activation failed: %s", pError.message); } }); } } } public void set_active (bool value) throws GLib.DBusError, GLib.IOError { if (_active == value) return; if (value) debug ("Screensaver activated"); else debug ("Screensaver disabled"); _set_active (value); active_changed (value); } public bool get_active () throws GLib.DBusError, GLib.IOError { return _active; } public uint32 get_active_time () throws GLib.DBusError, GLib.IOError { return 0; } public void lock () throws GLib.DBusError, GLib.IOError {} public void show_message (string summary, string body, string icon) throws GLib.DBusError, GLib.IOError {} public void simulate_user_activity () throws GLib.DBusError, GLib.IOError {} } [DBus (name="org.gnome.SessionManager")] public class SessionManagerInterface : Object { public bool session_is_active { get { return true; } } public string session_name { get { return "greeter"; } } public uint32 inhibited_actions { get { return 0; } } }