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loginManager: Get the session ID from logind if XDG_SESSION_ID unset

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If we're started by systemd, we won't be in the user's display session.
However, this is still the session that will get locked & unlocked. Ask
logind what the 'display' or 'greeter' session is, and watch for the
Unlock signal for that session to know when to unlock.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/137
This commit is contained in:
Iain Lane 2018-01-08 14:23:52 +00:00 committed by Florian Müllner
parent 0dee82fb9f
commit 22392d1328
2 changed files with 46 additions and 3 deletions
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40
js/misc/loginManager.js
View File

@ -40,14 +40,24 @@ const SystemdLoginSessionIface = '<node> \
<signal name="Lock" /> \
<signal name="Unlock" /> \
<property name="Active" type="b" access="read" /> \
<property name="Class" type="s" access="read" /> \
<property name="Id" type="s" access="read" /> \
<method name="SetLockedHint"> \
<arg type="b" direction="in"/> \
</method> \
</interface> \
</node>';
const SystemdLoginUserIface = '<node> \
<interface name="org.freedesktop.login1.User"> \
<property name="Display" type="(so)" access="read" /> \
<property name="Sessions" type="a(so)" access="read" /> \
</interface> \
</node>';
const SystemdLoginManager = Gio.DBusProxy.makeProxyWrapper(SystemdLoginManagerIface);
const SystemdLoginSession = Gio.DBusProxy.makeProxyWrapper(SystemdLoginSessionIface);
const SystemdLoginUser = Gio.DBusProxy.makeProxyWrapper(SystemdLoginUserIface);
function haveSystemd() {
return GLib.access("/run/systemd/seats", 0) >= 0;
@ -109,6 +119,9 @@ var LoginManagerSystemd = new Lang.Class({
this._proxy = new SystemdLoginManager(Gio.DBus.system,
'org.freedesktop.login1',
'/org/freedesktop/login1');
this._userProxy = new SystemdLoginUser(Gio.DBus.system,
'org.freedesktop.login1',
'/org/freedesktop/login1/user/self');
this._proxy.connectSignal('PrepareForSleep',
this._prepareForSleep.bind(this));
},
@ -121,8 +134,31 @@ var LoginManagerSystemd = new Lang.Class({
let sessionId = GLib.getenv('XDG_SESSION_ID');
if (!sessionId) {
log('Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session.');
return;
log('Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session. Asking logind directly.');
let [session, objectPath] = this._userProxy.Display;
if (session) {
log(`Will monitor session ${session}`);
sessionId = session;
} else {
log('Failed to find "Display" session; are we the greeter?');
for (let [session, objectPath] of this._userProxy.Sessions) {
let sessionProxy = new SystemdLoginSession(Gio.DBus.system,
'org.freedesktop.login1',
objectPath);
log(`Considering ${session}, class=${sessionProxy.Class}`);
if (sessionProxy.Class == 'greeter') {
log(`Yes, will monitor session ${session}`);
sessionId = session;
break;
}
}
if (!sessionId) {
log('No, failed to get session from logind.');
return;
}
}
}
this._proxy.GetSessionRemote(sessionId, (result, error) => {

9
js/ui/endSessionDialog.js
View File

@ -697,7 +697,14 @@ var EndSessionDialog = new Lang.Class({
if (proxy.State == 'closing')
continue;
if (proxy.Id == GLib.getenv('XDG_SESSION_ID'))
let sessionId = GLib.getenv('XDG_SESSION_ID');
if (!sessionId)
this._loginManager.getCurrentSessionProxy(currentSessionProxy => {
sessionId = currentSessionProxy.Id;
log(`endSessionDialog: No XDG_SESSION_ID, fetched from logind: ${sessionId}`);
});
if (proxy.Id == sessionId)
continue;
let session = { user: this._userManager.get_user(userName),