gnome-shell/js/ui/status/system.js

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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const AccountsService = imports.gi.AccountsService;
const Clutter = imports.gi.Clutter;
const Gdm = imports.gi.Gdm;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const BoxPointer = imports.ui.boxpointer;
const GnomeSession = imports.misc.gnomeSession;
const LoginManager = imports.misc.loginManager;
const Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;
const LOCKDOWN_SCHEMA = 'org.gnome.desktop.lockdown';
const LOGIN_SCREEN_SCHEMA = 'org.gnome.login-screen';
const DISABLE_USER_SWITCH_KEY = 'disable-user-switching';
const DISABLE_LOCK_SCREEN_KEY = 'disable-lock-screen';
const DISABLE_LOG_OUT_KEY = 'disable-log-out';
const DISABLE_RESTART_KEY = 'disable-restart-buttons';
const ALWAYS_SHOW_LOG_OUT_KEY = 'always-show-log-out';
const SENSOR_BUS_NAME = 'net.hadess.SensorProxy';
const SENSOR_OBJECT_PATH = '/net/hadess/SensorProxy';
const SensorProxyInterface = '<node> \
<interface name="net.hadess.SensorProxy"> \
<property name="HasAccelerometer" type="b" access="read"/> \
</interface> \
</node>';
const SensorProxy = Gio.DBusProxy.makeProxyWrapper(SensorProxyInterface);
const AltSwitcher = new Lang.Class({
Name: 'AltSwitcher',
_init: function(standard, alternate) {
this._standard = standard;
this._standard.connect('notify::visible', Lang.bind(this, this._sync));
this._alternate = alternate;
this._alternate.connect('notify::visible', Lang.bind(this, this._sync));
this._capturedEventId = global.stage.connect('captured-event', Lang.bind(this, this._onCapturedEvent));
this.actor = new St.Bin();
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
},
_sync: function() {
let childToShow = null;
if (this._standard.visible && this._alternate.visible) {
let [x, y, mods] = global.get_pointer();
let altPressed = (mods & Clutter.ModifierType.MOD1_MASK) != 0;
childToShow = altPressed ? this._alternate : this._standard;
} else if (this._standard.visible) {
childToShow = this._standard;
} else if (this._alternate.visible) {
childToShow = this._alternate;
}
if (this.actor.get_child() != childToShow) {
let hasFocus = this.actor.contains(global.stage.get_key_focus());
this.actor.set_child(childToShow);
if (hasFocus)
childToShow.grab_key_focus();
// The actors might respond to hover, so
// sync the pointer to make sure they update.
global.sync_pointer();
}
this.actor.visible = (childToShow != null);
},
_onDestroy: function() {
if (this._capturedEventId > 0) {
global.stage.disconnect(this._capturedEventId);
this._capturedEventId = 0;
}
},
_onCapturedEvent: function(actor, event) {
let type = event.type();
if (type == Clutter.EventType.KEY_PRESS || type == Clutter.EventType.KEY_RELEASE) {
let key = event.get_key_symbol();
if (key == Clutter.KEY_Alt_L || key == Clutter.KEY_Alt_R)
this._sync();
}
return Clutter.EVENT_PROPAGATE;
},
});
const Indicator = new Lang.Class({
Name: 'SystemIndicator',
Extends: PanelMenu.SystemIndicator,
_init: function() {
this.parent();
this._loginScreenSettings = new Gio.Settings({ schema_id: LOGIN_SCREEN_SCHEMA });
this._lockdownSettings = new Gio.Settings({ schema_id: LOCKDOWN_SCHEMA });
this._orientationSettings = new Gio.Settings({ schema_id: 'org.gnome.settings-daemon.peripherals.touchscreen' });
this._session = new GnomeSession.SessionManager();
this._loginManager = LoginManager.getLoginManager();
this._haveShutdown = true;
this._haveSuspend = true;
this._userManager = AccountsService.UserManager.get_default();
this._user = this._userManager.get_user(GLib.get_user_name());
this._createSubMenu();
this._userManager.connect('notify::is-loaded',
Lang.bind(this, this._updateMultiUser));
this._userManager.connect('notify::has-multiple-users',
Lang.bind(this, this._updateMultiUser));
this._userManager.connect('user-added',
Lang.bind(this, this._updateMultiUser));
this._userManager.connect('user-removed',
Lang.bind(this, this._updateMultiUser));
this._lockdownSettings.connect('changed::' + DISABLE_USER_SWITCH_KEY,
Lang.bind(this, this._updateMultiUser));
this._lockdownSettings.connect('changed::' + DISABLE_LOG_OUT_KEY,
Lang.bind(this, this._updateMultiUser));
this._lockdownSettings.connect('changed::' + DISABLE_LOCK_SCREEN_KEY,
Lang.bind(this, this._updateLockScreen));
global.settings.connect('changed::' + ALWAYS_SHOW_LOG_OUT_KEY,
Lang.bind(this, this._updateMultiUser));
this._updateSwitchUser();
this._updateMultiUser();
this._updateLockScreen();
// Whether shutdown is available or not depends on both lockdown
// settings (disable-log-out) and Polkit policy - the latter doesn't
// notify, so we update the menu item each time the menu opens or
// the lockdown setting changes, which should be close enough.
this.menu.connect('open-state-changed', Lang.bind(this,
function(menu, open) {
if (!open)
return;
this._updateHaveShutdown();
this._updateHaveSuspend();
}));
this._lockdownSettings.connect('changed::' + DISABLE_LOG_OUT_KEY,
Lang.bind(this, this._updateHaveShutdown));
this._orientationSettings.connect('changed::orientation-lock',
Lang.bind(this, this._updateOrientationLock));
Gio.DBus.system.watch_name(SENSOR_BUS_NAME,
Gio.BusNameWatcherFlags.NONE,
Lang.bind(this, this._sensorProxyAppeared),
Lang.bind(this, function() {
this._sensorProxy = null;
this._updateOrientationLock();
}));
this._updateOrientationLock();
Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
this._sessionUpdated();
},
_sensorProxyAppeared: function() {
this._sensorProxy = new SensorProxy(Gio.DBus.system, SENSOR_BUS_NAME, SENSOR_OBJECT_PATH,
Lang.bind(this, function(proxy, error) {
if (error) {
log(error.message);
return;
}
this._sensorProxy.connect('g-properties-changed',
Lang.bind(this, this._updateOrientationLock));
this._updateOrientationLock();
}));
},
_updateActionsVisibility: function() {
let visible = (this._settingsAction.visible ||
this._orientationLockAction.visible ||
this._lockScreenAction.visible ||
this._altSwitcher.actor.visible);
this._actionsItem.actor.visible = visible;
},
_sessionUpdated: function() {
this._updateLockScreen();
this._updatePowerOff();
this._updateSuspend();
this._updateMultiUser();
this._settingsAction.visible = Main.sessionMode.allowSettings;
this._updateActionsVisibility();
},
_updateMultiUser: function() {
let shouldShowInMode = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
let hasSwitchUser = this._updateSwitchUser();
let hasLogout = this._updateLogout();
this._switchUserSubMenu.actor.visible = shouldShowInMode && (hasSwitchUser || hasLogout);
},
_updateSwitchUser: function() {
let allowSwitch = !this._lockdownSettings.get_boolean(DISABLE_USER_SWITCH_KEY);
let multiUser = this._userManager.can_switch() && this._userManager.has_multiple_users;
let visible = allowSwitch && multiUser;
this._loginScreenItem.actor.visible = visible;
return visible;
},
_updateLogout: function() {
let allowLogout = !this._lockdownSettings.get_boolean(DISABLE_LOG_OUT_KEY);
let alwaysShow = global.settings.get_boolean(ALWAYS_SHOW_LOG_OUT_KEY);
let systemAccount = this._user.system_account;
let localAccount = this._user.local_account;
let multiUser = this._userManager.has_multiple_users;
let multiSession = Gdm.get_session_ids().length > 1;
let visible = allowLogout && (alwaysShow || multiUser || multiSession || systemAccount || !localAccount);
this._logoutItem.actor.visible = visible;
return visible;
},
_updateSwitchUserSubMenu: function() {
this._switchUserSubMenu.label.text = this._user.get_real_name();
let clutterText = this._switchUserSubMenu.label.clutter_text;
// XXX -- for some reason, the ClutterText's width changes
// rapidly unless we force a relayout of the actor. Probably
// a size cache issue or something. Moving this to be a layout
// manager would be a much better idea.
clutterText.get_allocation_box();
let layout = clutterText.get_layout();
if (layout.is_ellipsized())
this._switchUserSubMenu.label.text = this._user.get_user_name();
let iconFile = this._user.get_icon_file();
if (iconFile && !GLib.file_test(iconFile, GLib.FileTest.EXISTS))
iconFile = null;
if (iconFile) {
let file = Gio.File.new_for_path(iconFile);
let gicon = new Gio.FileIcon({ file: file });
this._switchUserSubMenu.icon.gicon = gicon;
} else {
this._switchUserSubMenu.icon.icon_name = 'avatar-default-symbolic';
}
},
_updateOrientationLock: function() {
if (this._sensorProxy)
this._orientationLockAction.visible = this._sensorProxy.HasAccelerometer;
else
this._orientationLockAction.visible = false;
let locked = this._orientationSettings.get_boolean('orientation-lock');
let icon = this._orientationLockAction.child;
icon.icon_name = locked ? 'rotation-locked-symbolic' : 'rotation-allowed-symbolic';
this._updateActionsVisibility();
},
_updateLockScreen: function() {
let showLock = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
let allowLockScreen = !this._lockdownSettings.get_boolean(DISABLE_LOCK_SCREEN_KEY);
this._lockScreenAction.visible = showLock && allowLockScreen && LoginManager.canLock();
this._updateActionsVisibility();
},
_updateHaveShutdown: function() {
this._session.CanShutdownRemote(Lang.bind(this, function(result, error) {
if (error)
return;
this._haveShutdown = result[0];
this._updatePowerOff();
}));
},
_updatePowerOff: function() {
let disabled = Main.sessionMode.isLocked ||
(Main.sessionMode.isGreeter &&
this._loginScreenSettings.get_boolean(DISABLE_RESTART_KEY));
this._powerOffAction.visible = this._haveShutdown && !disabled;
this._updateActionsVisibility();
},
_updateHaveSuspend: function() {
this._loginManager.canSuspend(Lang.bind(this, function(result) {
this._haveSuspend = result;
this._updateSuspend();
}));
},
_updateSuspend: function() {
let disabled = Main.sessionMode.isLocked ||
(Main.sessionMode.isGreeter &&
this._loginScreenSettings.get_boolean(DISABLE_RESTART_KEY));
this._suspendAction.visible = this._haveSuspend && !disabled;
this._updateActionsVisibility();
},
_createActionButton: function(iconName, accessibleName) {
let icon = new St.Button({ reactive: true,
can_focus: true,
track_hover: true,
accessible_name: accessibleName,
style_class: 'system-menu-action' });
icon.child = new St.Icon({ icon_name: iconName });
return icon;
},
_createSubMenu: function() {
let item;
this._switchUserSubMenu = new PopupMenu.PopupSubMenuMenuItem('', true);
this._switchUserSubMenu.icon.style_class = 'system-switch-user-submenu-icon';
// Since the label of the switch user submenu depends on the width of
// the popup menu, and we can't easily connect on allocation-changed
// or notify::width without creating layout cycles, simply update the
// label whenever the menu is opened.
this.menu.connect('open-state-changed', Lang.bind(this, function(menu, isOpen) {
if (isOpen)
this._updateSwitchUserSubMenu();
}));
item = new PopupMenu.PopupMenuItem(_("Switch User"));
item.connect('activate', Lang.bind(this, this._onLoginScreenActivate));
this._switchUserSubMenu.menu.addMenuItem(item);
this._loginScreenItem = item;
item = new PopupMenu.PopupMenuItem(_("Log Out"));
item.connect('activate', Lang.bind(this, this._onQuitSessionActivate));
this._switchUserSubMenu.menu.addMenuItem(item);
this._logoutItem = item;
this._user.connect('notify::is-loaded', Lang.bind(this, this._updateSwitchUserSubMenu));
this._user.connect('changed', Lang.bind(this, this._updateSwitchUserSubMenu));
this.menu.addMenuItem(this._switchUserSubMenu);
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
item = new PopupMenu.PopupBaseMenuItem({ reactive: false,
can_focus: false });
this._settingsAction = this._createActionButton('preferences-system-symbolic', _("Settings"));
this._settingsAction.connect('clicked', Lang.bind(this, this._onSettingsClicked));
item.actor.add(this._settingsAction, { expand: true, x_fill: false });
this._orientationLockAction = this._createActionButton('', _("Orientation Lock"));
this._orientationLockAction.connect('clicked', Lang.bind(this, this._onOrientationLockClicked));
item.actor.add(this._orientationLockAction, { expand: true, x_fill: false });
this._lockScreenAction = this._createActionButton('changes-prevent-symbolic', _("Lock"));
this._lockScreenAction.connect('clicked', Lang.bind(this, this._onLockScreenClicked));
item.actor.add(this._lockScreenAction, { expand: true, x_fill: false });
this._suspendAction = this._createActionButton('media-playback-pause-symbolic', _("Suspend"));
this._suspendAction.connect('clicked', Lang.bind(this, this._onSuspendClicked));
this._powerOffAction = this._createActionButton('system-shutdown-symbolic', _("Power Off"));
this._powerOffAction.connect('clicked', Lang.bind(this, this._onPowerOffClicked));
this._altSwitcher = new AltSwitcher(this._powerOffAction, this._suspendAction);
item.actor.add(this._altSwitcher.actor, { expand: true, x_fill: false });
this._actionsItem = item;
this.menu.addMenuItem(item);
},
_onSettingsClicked: function() {
this.menu.itemActivated();
let app = Shell.AppSystem.get_default().lookup_app('gnome-control-center.desktop');
Main.overview.hide();
app.activate();
},
_onOrientationLockClicked: function() {
this.menu.itemActivated();
let locked = this._orientationSettings.get_boolean('orientation-lock');
this._orientationSettings.set_boolean('orientation-lock', !locked);
this._updateOrientationLock();
},
_onLockScreenClicked: function() {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
Main.overview.hide();
Main.screenShield.lock(true);
},
_onLoginScreenActivate: function() {
this.menu.itemActivated(BoxPointer.PopupAnimation.NONE);
Main.overview.hide();
if (Main.screenShield)
Main.screenShield.lock(false);
Clutter.threads_add_repaint_func_full(Clutter.RepaintFlags.POST_PAINT, function() {
Gdm.goto_login_session_sync(null);
return false;
});
},
_onQuitSessionActivate: function() {
Main.overview.hide();
this._session.LogoutRemote(0);
},
_onPowerOffClicked: function() {
this.menu.itemActivated();
Main.overview.hide();
this._session.ShutdownRemote(0);
},
_onSuspendClicked: function() {
this.menu.itemActivated();
this._loginManager.suspend();
},
});