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windowManager: Implement MetaDisplay::init-xserver hook

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We do spawn gsd-xsettings, and watch its name before notifying on the
given task, so the mutter bits can proceed with X11 startup.

One notable change is that we only start gsd-xsettings, instead of the
generic gnome-session-x11-services target. We do so as we have to wait
on a dbus name to appear in order to deem the initialization done, and
making it all depend on gsd-xsettings seems tidier.

Less notably, we also use ::shutdown-xserver to shutdown the related
services. Its major benefit is that it'd allow us to ensure the olderly
shutdown of those services, but it's unused at the moment.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/836
This commit is contained in:
Carlos Garnacho 2019-11-14 23:56:42 +01:00
parent 3c4a5a67e2
commit 12e14884ef
1 changed files with 27 additions and 4 deletions
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31
js/ui/windowManager.js
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@ -896,13 +896,36 @@ var WindowManager = class {
}
});
global.display.connect('x11-display-opened', () => {
global.display.connect('init-xserver', (display, task) => {
IBusManager.getIBusManager().restartDaemon(['--xim']);
Shell.util_start_systemd_unit('gnome-session-x11-services.target', 'fail');
Shell.util_start_systemd_unit('gsd-xsettings.target', 'fail');
/* Leave this watchdog timeout so don't block indefinitely here */
let timeoutId = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 5, () => {
Gio.DBus.session.unwatch_name(watchId);
task.return_boolean(false);
timeoutId = 0;
return GLib.SOURCE_REMOVE;
});
/* When gsd-xsettings daemon is started, we are good to resume */
let watchId = Gio.DBus.session.watch_name(
'org.gnome.SettingsDaemon.XSettings',
Gio.BusNameWatcherFlags.NONE,
() => {
Gio.DBus.session.unwatch_name(watchId);
if (timeoutId > 0) {
task.return_boolean(true);
GLib.source_remove(timeoutId);
}
},
null);
return true;
});
global.display.connect('x11-display-closing', () => {
Shell.util_stop_systemd_unit('gnome-session-x11-services.target', 'fail');
global.display.connect('shutdown-xserver', (display, task) => {
Shell.util_stop_systemd_unit('gsd-xsettings.target', 'fail');
IBusManager.getIBusManager().restartDaemon();
task.return_boolean(true);
});
Main.overview.connect('showing', () => {