gnome-shell/js/ui/automountManager.js
Giovanni Campagna 34cb92ff4c Don't track the status of the screensaver on DBus
We are the screensaver now, and internal objects can track the
locking status better themselves. And to do so, add two signals
to ScreenShield.

https://bugzilla.gnome.org/show_bug.cgi?id=619955
2012-07-21 15:40:28 +02:00

329 lines
11 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const GLib = imports.gi.GLib;
const Gio = imports.gi.Gio;
const Params = imports.misc.params;
const Shell = imports.gi.Shell;
const Main = imports.ui.main;
const ShellMountOperation = imports.ui.shellMountOperation;
const GnomeSession = imports.misc.gnomeSession;
const GNOME_SESSION_AUTOMOUNT_INHIBIT = 16;
// GSettings keys
const SETTINGS_SCHEMA = 'org.gnome.desktop.media-handling';
const SETTING_ENABLE_AUTOMOUNT = 'automount';
const AUTORUN_EXPIRE_TIMEOUT_SECS = 10;
const ConsoleKitSessionIface = <interface name="org.freedesktop.ConsoleKit.Session">
<method name="IsActive">
<arg type="b" direction="out" />
</method>
<signal name="ActiveChanged">
<arg type="b" direction="out" />
</signal>
</interface>;
const ConsoleKitSessionProxy = Gio.DBusProxy.makeProxyWrapper(ConsoleKitSessionIface);
const ConsoleKitManagerIface = <interface name="org.freedesktop.ConsoleKit.Manager">
<method name="GetCurrentSession">
<arg type="o" direction="out" />
</method>
</interface>;
const ConsoleKitManagerInfo = Gio.DBusInterfaceInfo.new_for_xml(ConsoleKitManagerIface);
function ConsoleKitManager() {
var self = new Gio.DBusProxy({ g_connection: Gio.DBus.system,
g_interface_name: ConsoleKitManagerInfo.name,
g_interface_info: ConsoleKitManagerInfo,
g_name: 'org.freedesktop.ConsoleKit',
g_object_path: '/org/freedesktop/ConsoleKit/Manager',
g_flags: (Gio.DBusProxyFlags.DO_NOT_AUTO_START |
Gio.DBusProxyFlags.DO_NOT_LOAD_PROPERTIES) });
self._updateSessionActive = function() {
if (self.g_name_owner) {
self.GetCurrentSessionRemote(function([session]) {
self._ckSession = new ConsoleKitSessionProxy(Gio.DBus.system, 'org.freedesktop.ConsoleKit', session);
self._ckSession.connectSignal('ActiveChanged', function(object, senderName, [isActive]) {
self.sessionActive = isActive;
});
self._ckSession.IsActiveRemote(function([isActive]) {
self.sessionActive = isActive;
});
});
} else {
self.sessionActive = true;
}
};
self.connect('notify::g-name-owner',
Lang.bind(self, self._updateSessionActive));
self._updateSessionActive();
self.init(null);
return self;
}
function haveSystemd() {
return GLib.access("/sys/fs/cgroup/systemd", 0) >= 0;
}
const AutomountManager = new Lang.Class({
Name: 'AutomountManager',
_init: function() {
this._settings = new Gio.Settings({ schema: SETTINGS_SCHEMA });
this._volumeQueue = [];
this._session = new GnomeSession.SessionManager();
this._session.connectSignal('InhibitorAdded',
Lang.bind(this, this._InhibitorsChanged));
this._session.connectSignal('InhibitorRemoved',
Lang.bind(this, this._InhibitorsChanged));
this._inhibited = false;
if (!haveSystemd())
this.ckListener = new ConsoleKitManager();
Main.screenShield.connect('lock-status-changed', Lang.bind(this, this._lockStatusChanged));
this._volumeMonitor = Gio.VolumeMonitor.get();
this._volumeMonitor.connect('volume-added',
Lang.bind(this,
this._onVolumeAdded));
this._volumeMonitor.connect('volume-removed',
Lang.bind(this,
this._onVolumeRemoved));
this._volumeMonitor.connect('drive-connected',
Lang.bind(this,
this._onDriveConnected));
this._volumeMonitor.connect('drive-disconnected',
Lang.bind(this,
this._onDriveDisconnected));
this._volumeMonitor.connect('drive-eject-button',
Lang.bind(this,
this._onDriveEjectButton));
Mainloop.idle_add(Lang.bind(this, this._startupMountAll));
},
_InhibitorsChanged: function(object, senderName, [inhibtor]) {
this._session.IsInhibitedRemote(GNOME_SESSION_AUTOMOUNT_INHIBIT,
Lang.bind(this,
function(result, error) {
if (!error) {
this._inhibited = result[0];
}
}));
},
_lockStatusChanged: function(shield, locked) {
if (!locked) {
this._volumeQueue.forEach(Lang.bind(this, function(volume) {
this._checkAndMountVolume(volume);
}));
}
// clear the queue anyway
this._volumeQueue = [];
},
_startupMountAll: function() {
let volumes = this._volumeMonitor.get_volumes();
volumes.forEach(Lang.bind(this, function(volume) {
this._checkAndMountVolume(volume, { checkSession: false,
useMountOp: false,
allowAutorun: false });
}));
return false;
},
isSessionActive: function() {
// Return whether the current session is active, using the
// right mechanism: either systemd if available or ConsoleKit
// as fallback.
if (haveSystemd())
return Shell.session_is_active_for_systemd();
return this.ckListener.sessionActive;
},
_onDriveConnected: function() {
// if we're not in the current ConsoleKit session,
// or screensaver is active, don't play sounds
if (!this.isSessionActive())
return;
if (Main.screenShield.locked)
return;
global.play_theme_sound(0, 'device-added-media');
},
_onDriveDisconnected: function() {
// if we're not in the current ConsoleKit session,
// or screensaver is active, don't play sounds
if (!this.isSessionActive())
return;
if (Main.screenShield.locked)
return;
global.play_theme_sound(0, 'device-removed-media');
},
_onDriveEjectButton: function(monitor, drive) {
// TODO: this code path is not tested, as the GVfs volume monitor
// doesn't emit this signal just yet.
if (!this.isSessionActive())
return;
// we force stop/eject in this case, so we don't have to pass a
// mount operation object
if (drive.can_stop()) {
drive.stop
(Gio.MountUnmountFlags.FORCE, null, null,
Lang.bind(this, function(drive, res) {
try {
drive.stop_finish(res);
} catch (e) {
log("Unable to stop the drive after drive-eject-button " + e.toString());
}
}));
} else if (drive.can_eject()) {
drive.eject_with_operation
(Gio.MountUnmountFlags.FORCE, null, null,
Lang.bind(this, function(drive, res) {
try {
drive.eject_with_operation_finish(res);
} catch (e) {
log("Unable to eject the drive after drive-eject-button " + e.toString());
}
}));
}
},
_onVolumeAdded: function(monitor, volume) {
this._checkAndMountVolume(volume);
},
_checkAndMountVolume: function(volume, params) {
params = Params.parse(params, { checkSession: true,
useMountOp: true,
allowAutorun: true });
if (params.checkSession) {
// if we're not in the current ConsoleKit session,
// don't attempt automount
if (!this.isSessionActive())
return;
if (Main.screenShield.locked) {
if (this._volumeQueue.indexOf(volume) == -1)
this._volumeQueue.push(volume);
return;
}
}
if (this._inhibited)
return;
// Volume is already mounted, don't bother.
if (volume.get_mount())
return;
if (!this._settings.get_boolean(SETTING_ENABLE_AUTOMOUNT) ||
!volume.should_automount() ||
!volume.can_mount()) {
// allow the autorun to run anyway; this can happen if the
// mount gets added programmatically later, even if
// should_automount() or can_mount() are false, like for
// blank optical media.
this._allowAutorun(volume);
this._allowAutorunExpire(volume);
return;
}
if (params.useMountOp) {
let operation = new ShellMountOperation.ShellMountOperation(volume);
this._mountVolume(volume, operation, params.allowAutorun);
} else {
this._mountVolume(volume, null, params.allowAutorun);
}
},
_mountVolume: function(volume, operation, allowAutorun) {
if (allowAutorun)
this._allowAutorun(volume);
let mountOp = operation ? operation.mountOp : null;
volume._operation = operation;
volume.mount(0, mountOp, null,
Lang.bind(this, this._onVolumeMounted));
},
_onVolumeMounted: function(volume, res) {
this._allowAutorunExpire(volume);
try {
volume.mount_finish(res);
this._closeOperation(volume);
} catch (e) {
// FIXME: we will always get G_IO_ERROR_FAILED from the gvfs udisks
// backend in this case, see
// https://bugs.freedesktop.org/show_bug.cgi?id=51271
if (e.message.indexOf('No key available with this passphrase') != -1) {
this._reaskPassword(volume);
} else {
if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.FAILED_HANDLED))
log('Unable to mount volume ' + volume.get_name() + ': ' + e.toString());
this._closeOperation(volume);
}
}
},
_onVolumeRemoved: function(monitor, volume) {
this._volumeQueue =
this._volumeQueue.filter(function(element) {
return (element != volume);
});
},
_reaskPassword: function(volume) {
let existingDialog = volume._operation ? volume._operation.borrowDialog() : null;
let operation =
new ShellMountOperation.ShellMountOperation(volume,
{ existingDialog: existingDialog });
this._mountVolume(volume, operation);
},
_closeOperation: function(volume) {
if (volume._operation)
volume._operation.close();
},
_allowAutorun: function(volume) {
volume.allowAutorun = true;
},
_allowAutorunExpire: function(volume) {
Mainloop.timeout_add_seconds(AUTORUN_EXPIRE_TIMEOUT_SECS, function() {
volume.allowAutorun = false;
return false;
});
}
});