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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const GLib = imports.gi.GLib;
const Gio = imports.gi.Gio;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const SystemdLoginManagerIface = '<node> \
<interface name="org.freedesktop.login1.Manager"> \
<method name="Suspend"> \
<arg type="b" direction="in"/> \
</method> \
<method name="CanSuspend"> \
<arg type="s" direction="out"/> \
</method> \
<method name="Inhibit"> \
<arg type="s" direction="in"/> \
<arg type="s" direction="in"/> \
<arg type="s" direction="in"/> \
<arg type="s" direction="in"/> \
<arg type="h" direction="out"/> \
</method> \
<method name="GetSession"> \
<arg type="s" direction="in"/> \
<arg type="o" direction="out"/> \
</method> \
<method name="ListSessions"> \
<arg name="sessions" type="a(susso)" direction="out"/> \
</method> \
<signal name="PrepareForSleep"> \
<arg type="b" direction="out"/> \
</signal> \
</interface> \
</node>';
const SystemdLoginSessionIface = '<node> \
<interface name="org.freedesktop.login1.Session"> \
<signal name="Lock" /> \
<signal name="Unlock" /> \
<property name="Active" type="b" access="read" /> \
</interface> \
</node>';
const SystemdLoginManager = Gio.DBusProxy.makeProxyWrapper(SystemdLoginManagerIface);
const SystemdLoginSession = Gio.DBusProxy.makeProxyWrapper(SystemdLoginSessionIface);
function haveSystemd() {
return GLib.access("/run/systemd/seats", 0) >= 0;
}
function versionCompare(required, reference) {
required = required.split('.');
reference = reference.split('.');
for (let i = 0; i < required.length; i++) {
let requiredInt = parseInt(required[i]);
let referenceInt = parseInt(reference[i]);
if (requiredInt != referenceInt)
return requiredInt < referenceInt;
}
return true;
}
function canLock() {
try {
let params = GLib.Variant.new('(ss)', ['org.gnome.DisplayManager.Manager', 'Version']);
let result = Gio.DBus.system.call_sync('org.gnome.DisplayManager',
'/org/gnome/DisplayManager/Manager',
'org.freedesktop.DBus.Properties',
'Get', params, null,
Gio.DBusCallFlags.NONE,
-1, null);
let version = result.deep_unpack()[0].deep_unpack();
return haveSystemd() && versionCompare('3.5.91', version);
} catch(e) {
return false;
}
}
let _loginManager = null;
/**
* LoginManager:
* An abstraction over systemd/logind and ConsoleKit.
*
*/
function getLoginManager() {
if (_loginManager == null) {
if (haveSystemd() && GLib.getenv('XDG_SESSION_ID'))
_loginManager = new LoginManagerSystemd();
else
_loginManager = new LoginManagerDummy();
}
return _loginManager;
}
const LoginManagerSystemd = new Lang.Class({
Name: 'LoginManagerSystemd',
_init: function() {
this._proxy = new SystemdLoginManager(Gio.DBus.system,
'org.freedesktop.login1',
'/org/freedesktop/login1');
this._proxy.connectSignal('PrepareForSleep',
Lang.bind(this, this._prepareForSleep));
},
getCurrentSessionProxy: function(callback) {
if (this._currentSession) {
callback (this._currentSession);
return;
}
this._proxy.GetSessionRemote(GLib.getenv('XDG_SESSION_ID'), Lang.bind(this,
function(result, error) {
if (error) {
logError(error, 'Could not get a proxy for the current session');
} else {
this._currentSession = new SystemdLoginSession(Gio.DBus.system,
'org.freedesktop.login1',
result[0]);
callback(this._currentSession);
}
}));
},
canSuspend: function(asyncCallback) {
this._proxy.CanSuspendRemote(function(result, error) {
if (error)
asyncCallback(false);
else
asyncCallback(result[0] != 'no');
});
},
listSessions: function(asyncCallback) {
this._proxy.ListSessionsRemote(function(result, error) {
if (error)
asyncCallback([]);
else
asyncCallback(result[0]);
});
},
suspend: function() {
this._proxy.SuspendRemote(true);
},
inhibit: function(reason, callback) {
let inVariant = GLib.Variant.new('(ssss)',
['sleep',
'GNOME Shell',
reason,
'delay']);
this._proxy.call_with_unix_fd_list('Inhibit', inVariant, 0, -1, null, null,
Lang.bind(this, function(proxy, result) {
let fd = -1;
try {
let [outVariant, fdList] = proxy.call_with_unix_fd_list_finish(result);
fd = fdList.steal_fds()[0];
callback(new Gio.UnixInputStream({ fd: fd }));
} catch(e) {
logError(e, "Error getting systemd inhibitor");
callback(null);
}
}));
},
_prepareForSleep: function(proxy, sender, [aboutToSuspend]) {
this.emit('prepare-for-sleep', aboutToSuspend);
}
});
Signals.addSignalMethods(LoginManagerSystemd.prototype);
const LoginManagerDummy = new Lang.Class({
Name: 'LoginManagerDummy',
getCurrentSessionProxy: function(callback) {
// we could return a DummySession object that fakes whatever callers
// expect (at the time of writing: connect() and connectSignal()
// methods), but just never calling the callback should be safer
},
canSuspend: function(asyncCallback) {
asyncCallback(false);
},
listSessions: function(asyncCallback) {
asyncCallback([]);
},
suspend: function() {
this.emit('prepare-for-sleep', true);
this.emit('prepare-for-sleep', false);
},
inhibit: function(reason, callback) {
callback(null);
}
});
Signals.addSignalMethods(LoginManagerDummy.prototype);
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