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It is possible to build systemd without logind, in which case
/sys/fs/cgroup/systemd would still exist. Check for /run/systemd/seats instead,
as recommended by systemd upstream.

For details, see:
<https://mail.gnome.org/archives/desktop-devel-list/2013-March/msg00092.html>

Drop the now unnecessary linking against libsystemd-daemon.

https://bugzilla.gnome.org/show_bug.cgi?id=696264

Fixes bug 682241

Some of the debug messages in the systemd
code paths are misleading, since they
mention ConsoleKit which isn't in the picture.

Lennart Poettering authored Feb 10, 2012 and Matthias Clasen committed Feb 10, 2012

On Fedora and other distributions ConsoleKit is being replaced by
systemd-logind. Accordingly, all tools previously talking to CK need to
talk to systemd-logind instead.

This patch will dynamically fall back to CK if systemd is not found,
thus being nice to Debian style distributions which want to support
systemd and non-systemd systems with the same packages.

https://bugzilla.gnome.org/show_bug.cgi?id=669787

Multiple things use the same interface and path definitions.  Rather than having
the definitions duplicated in the various locations, use a single header to
define them.  This also helps keep the naming the same across all the entire
codebase.

It is currently possible to start gnome-screensaver twice because
of a race condition. This change makes sure that we bail out if
we cannot become the primary owner of the bus name.

https://bugzilla.gnome.org/show_bug.cgi?id=642462

This has been deprecated and handled by gnome-session for the last few releases.

And all that entails.

This just gets rid of some trailing whitespace and
adds some missing braces.

Consumers like gnome-shell will be relying on this to know when the
operation was successful.  Simply returning
DBUS_HANDLER_RESULT_HANDLED is not going to do that.

This fixes a problem where totem leaves inhibitors behind, see
bug 600488.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=599258

2009-04-13  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (listener_remove_ref_entry):
	Don't try to remove an invalid inhibitor entry.
	Fixes #578669


svn path=/trunk/; revision=1652

2009-01-18  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (add_session_inhibit),
	(remove_session_inhibit), (listener_add_ref_entry),
	(listener_remove_ref_entry):
	Proxy g-s inhibitors over to the session.


svn path=/trunk/; revision=1582

2009-01-18  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (listener_set_session_idle_internal),
	(listener_get_property), (do_introspect),
	(listener_dbus_handle_session_message):
	* src/gs-monitor.c (disconnect_manager_signals),
	(connect_manager_signals):
	Remove obsolete signals and properties.


svn path=/trunk/; revision=1581

2009-01-18  William Jon McCann  <jmccann@redhat.com>

	* configure.ac:
	* src/Makefile.am:
	* src/gs-idle-monitor.c:
	* src/gs-idle-monitor.h:
	* src/gs-listener-dbus.c:
	* src/gs-monitor.c (gs_monitor_simulate_user_activity),
	(_gs_monitor_update_from_prefs), (gs_monitor_init):
	* src/gs-watcher-x11.c (gs_watcher_class_init),
	(_gs_watcher_set_active_internal), (on_idle_timeout),
	(on_presence_status_changed), (connect_presence_watcher),
	(gs_watcher_init), (gs_watcher_finalize), (gs_watcher_new):
	* src/gs-watcher.h:
	* src/test-idle-ext.c:
	* src/test-idle-monitor.c:
	* src/test-watcher.c (test_watcher):
	Rely on session idle detection.
	Fixes #567919


svn path=/trunk/; revision=1578

2009-01-16  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (listener_set_session_idle_internal):
	Don't set idle hint in CK.  This is now done by gnome-session.


svn path=/trunk/; revision=1577

2009-01-16  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (do_introspect):
	* src/gs-listener-dbus.h:
	* src/gs-monitor.c (_gs_monitor_update_from_prefs),
	(disconnect_watcher_signals), (connect_watcher_signals):
	* src/gs-watcher-x11.c (gs_watcher_set_property),
	(gs_watcher_get_property), (gs_watcher_class_init),
	(start_idle_watcher), (stop_idle_watcher),
	(_gs_watcher_reset_state):
	* src/gs-watcher.h:
	Remove power notice signal.


svn path=/trunk/; revision=1576

2008-06-07  William Jon McCann  <jmccann@redhat.com>

	* src/gs-listener-dbus.c (gs_listener_acquire):
	Don't require system bus connection.


svn path=/trunk/; revision=1457

2007-09-11  William Jon McCann  <mccann@jhu.edu>

	* configure.ac: Add AM_PROG_CC_C_O


svn path=/trunk/; revision=1294

2007-08-23  William Jon McCann  <mccann@jhu.edu>

        * src/gs-listener-dbus.c: (listener_dbus_handle_system_message):
        On CK Lock emit lock signal instead of setting active directly.



svn path=/trunk/; revision=1259

2007-07-30  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (listener_add_ck_ref_entry),
	(listener_remove_ck_ref_entry),
	(_listener_message_path_is_our_session),
	(listener_dbus_handle_system_message),
	(listener_dbus_filter_function), (gs_listener_acquire):
	Respond to ConsoleKit ActiveChanged signals.
	Based on a patch from Ian Jackson <iwj@ubuntu.com>
	Fixes #461028


svn path=/trunk/; revision=1230

2007-07-05  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (gs_listener_update_console_kit_idle),
	(query_session_id):
	Check the system connection isn't null.
	Fixes #434712


svn path=/trunk/; revision=1204

2007-02-20  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (gs_listener_update_console_kit_idle):
	Use new CK method name SetIdleHint().


svn path=/trunk/; revision=1104

2007-02-15  William Jon McCann  <mccann@jhu.edu>

	* src/debug-screensaver.sh: Add XDG_SESSION_COOKIE var.

	* src/gs-listener-dbus.c: (gs_listener_update_console_kit_idle),
	(listener_set_session_idle_internal):
	Update the ConsoleKit idle state if possible.


svn path=/trunk/; revision=1098

2006-10-31  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (_g_time_val_to_iso8601),
	(accumulate_ref_entry), (listener_dbus_get_ref_entries),
	(listener_dbus_add_ref_entry), (do_introspect),
	(listener_dbus_handle_session_message):
	Add GetInhibitors() to dbus interface.

2006-10-23  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (listener_dbus_handle_system_message),
	(gs_listener_acquire), (query_session_id), (init_session_id),
	(gs_listener_init), (gs_listener_finalize):
	Add ConsoleKit Unlock/Lock functionality.

	* src/gs-watcher-x11.c: (remove_power_timer), (add_power_timer),
	(remove_idle_timer), (add_idle_timer),
	(_gs_watcher_notice_activity):
	Don't spew so much debug.

2006-10-18  William Jon McCann  <mccann@jhu.edu>

	* data/gnome-screensaver.schemas.in:
	* src/gs-listener-dbus.c: (send_dbus_boolean_signal),
	(gs_listener_emit_power_notice),
	(gs_listener_send_signal_active_changed),
	(gs_listener_send_signal_session_idle_changed), (do_introspect):
	* src/gs-listener-dbus.h:
	* src/gs-monitor.c: (watcher_power_notice_cb),
	(_gs_monitor_update_from_prefs), (disconnect_watcher_signals),
	(connect_watcher_signals):
	* src/gs-prefs.c: (_gs_prefs_set_power_timeout),
	(gs_prefs_load_from_gconf), (key_changed_cb), (gs_prefs_init):
	* src/gs-prefs.h:
	* src/gs-watcher-x11.c: (gs_watcher_set_power_timeout),
	(gs_watcher_set_property), (gs_watcher_get_property),
	(gs_watcher_class_init), (remove_power_timer), (add_power_timer),
	(reset_timers), (_gs_watcher_set_session_power_notice),
	(_gs_watcher_notice_activity), (power_timer), (idle_timer),
	(schedule_power_wakeup_event):
	* src/gs-watcher.h:
	Add SessionPowerManagementIdleChanged signal for power-management
	baseline.  Fixes #350293

2006-09-05  William Jon McCann  <mccann@jhu.edu>

	* src/gs-grab-x11.c: (gs_grab_get_keyboard), (gs_grab_move_mouse),
	(gs_grab_move_keyboard), (gs_grab_grab_window):
	* src/gs-job.c: (wait_on_child), (nice_process), (spawn_on_widget),
	(gs_job_start):
	* src/gs-listener-dbus.c: (send_dbus_message),
	(send_dbus_void_signal), (gs_listener_send_signal_active_changed),
	(gs_listener_send_signal_session_idle_changed), (raise_error),
	(raise_property_type_error), (listener_set_property),
	(listener_get_property), (listener_get_active_time),
	(listener_get_session_idle_time), (gs_listener_dbus_init):
	* src/gs-manager.c: (gs_manager_activate), (gs_manager_deactivate):
	* src/gs-window-x11.c: (get_env_vars):
	Use gs_debug instead of g_warning so the messages get into the log.
	Also add more environment variables to the whitelist.

2006-08-05  William Jon McCann  <mccann@jhu.edu>

	* savers/gste-slideshow.c: (draw_iter):
	* src/gnome-screensaver-gl-helper.c: (main):
	* src/gnome-screensaver-preferences.c: (check_is_root_user):
	* src/gs-listener-dbus.c: (generate_cookie):
	* src/gs-watcher-x11.c: (init_mit_saver_extension):

	Fix warnings from sparse.  Fixes #350049
	Patch from Kjartan Maraas <kmaraas@gnome.org>

2006-07-25  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (gs_listener_set_throttle):
	Fix typo in debug output.

2006-07-24  William Jon McCann  <mccann@jhu.edu>

	* src/gs-listener-dbus.c: (listener_dbus_add_ref_entry),
	(listener_service_deleted), (listener_dbus_handle_session_message),
	(listener_dbus_handle_system_message),
	(gs_listener_message_handler), (gs_listener_dbus_init),
	(listener_dbus_filter_function),
	(listener_dbus_system_filter_function), (gs_listener_acquire):
	Listen for KEY_COFEE from HAL.  Lock screen in response.

	Based on patch from downstream Ubuntu.
	Fixes #347854

2006-07-05  William Jon McCann  <mccann@jhu.edu>

	* src/gnome-screensaver.c: (main):
	* src/gs-fade.c: (xf86_whack_gamma), (gamma_info_init),
	(gs_fade_class_init), (gs_fade_finalize):
	* src/gs-grab-x11.c:
	* src/gs-job.c: (add_known_engine_locations_to_path),
	(get_themes_tree), (find_info_for_id),
	(gs_job_get_theme_info_list), (gs_job_class_init),
	(gs_job_finalize), (gs_job_set_theme), (spawn_on_widget),
	(gs_job_start), (gs_job_stop), (gs_job_suspend):
	* src/gs-listener-dbus.c: (gs_listener_error_quark),
	(gs_listener_class_init), (gs_listener_init),
	(gs_listener_finalize):
	* src/gs-manager.c: (free_themes), (gs_manager_set_themes),
	(gs_manager_class_init), (gs_manager_finalize):
	* src/gs-monitor.c: (gs_monitor_class_init), (gs_monitor_finalize):
	* src/gs-prefs.c: (gs_prefs_class_init), (gs_prefs_init),
	(gs_prefs_finalize):
	* src/gs-prefs.h:
	* src/gs-watcher-x11.c: (gs_watcher_class_init),
	(stop_notice_events), (start_notice_events),
	(_gs_watcher_notice_window_created),
	(_gs_watcher_pointer_position_free),
	(_gs_watcher_set_pointer_position), (start_idle_watcher),
	(gs_watcher_finalize):
	* src/gs-window-x11.c: (gs_window_real_unrealize),
	(gs_window_real_realize), (gs_window_real_show),
	(gs_window_real_hide), (gs_window_real_key_press_event),
	(gs_window_class_init), (gs_window_finalize):
	Misc cleanups.  A few memory reduction attempts.

2006-06-07  William Jon McCann  <mccann@jhu.edu>

	* src/gnome-screensaver-command.c: (main):
	* src/gnome-screensaver-dialog.c: (main):
	* src/gnome-screensaver-preferences.c: (preview_set_theme),
	(populate_model), (separator_func), (theme_installer_run),
	(fullscreen_preview_previous_cb), (fullscreen_preview_next_cb),
	(fullscreen_preview_cancelled_cb), (fullscreen_preview_start_cb),
	(check_is_root_user), (main):
	* src/gnome-screensaver.c: (main):
	* src/gs-auth-helper.c:
	* src/gs-auth-pam.c: (auth_message_handler), (pam_conversation),
	(gs_auth_verify_user):
	* src/gs-auth-pwent.c: (passwds_match):
	* src/gs-debug.c: (gs_debug_real):
	* src/gs-fade.c: (check_gamma_extension), (gamma_info_init):
	* src/gs-grab-x11.c: (gs_grab_move_mouse):
	* src/gs-job.c: (gs_job_died):
	* src/gs-listener-dbus.c: (do_introspect),
	(listener_dbus_filter_handle_methods),
	(gs_listener_message_handler), (listener_dbus_filter_function),
	(screensaver_is_running):
	* src/gs-lock-plug.c: (gs_lock_plug_close),
	(gs_lock_plug_class_init), (get_user_display_label),
	(populate_model), (separator_func), (expand_string):
	* src/gs-manager.c: (window_deactivated_cb):
	* src/gs-prefs.c: (key_changed_cb):
	* src/gs-watcher-x11.c: (disable_builtin_screensaver),
	(schedule_wakeup_event):
	* src/gs-window-x11.c: (gs_window_override_user_time),
	(gs_window_dialog_finish):
	* src/test-fade.c: (main):
	* src/test-passwd.c: (main):
	* src/test-watcher.c: (main):
	* src/test-window.c: (main):

	Eliminate trailing whitespace found using
	(setq-default show-trailing-whitespace t)
	in ~/.emacs.

2006-06-06  William Jon McCann  <mccann@jhu.edu>

	* doc/dbus-interface.xml:
	* src/gnome-screensaver-command.c: (do_command):
	* src/gs-listener-dbus.c: (do_introspect),
	(listener_dbus_filter_handle_methods):
	Add introspection after learning how to do it
	from hal.  Change setActive and others to
	use the DBUS naming convention.

2006-06-06  William Jon McCann  <mccann@jhu.edu>

	* doc/DBUS-API.txt: Rename poke and add some more
	descriptions.

	* src/gnome-screensaver-command.c: (do_command):
	* src/gs-listener-dbus.c: (listener_dbus_filter_handle_methods),
	(gs_listener_class_init):
	* src/gs-listener-dbus.h:
	* src/gs-monitor.c: (listener_simulate_user_activity_cb),
	(disconnect_listener_signals), (connect_listener_signals):
	Rename Poke to SimulateUserActivity since that seems to be
	preferred from feedback on XDG list.  How boring.