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

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
/* exported Indicator */

const {Gio, GLib, GObject} = imports.gi;

const Main = imports.ui.main;
const PanelMenu = imports.ui.panelMenu;
const PopupMenu = imports.ui.popupMenu;

const { loadInterfaceXML } = imports.misc.fileUtils;

const BUS_NAME = 'org.gnome.SettingsDaemon.Color';
const OBJECT_PATH = '/org/gnome/SettingsDaemon/Color';

const ColorInterface = loadInterfaceXML('org.gnome.SettingsDaemon.Color');
const colorInfo = Gio.DBusInterfaceInfo.new_for_xml(ColorInterface);

var Indicator = GObject.registerClass(
class Indicator extends PanelMenu.SystemIndicator {
    _init() {
        super._init();

        this._indicator = this._addIndicator();
        this._indicator.icon_name = 'night-light-symbolic';

        this._proxy = new Gio.DBusProxy({
            g_connection: Gio.DBus.session,
            g_name: BUS_NAME,
            g_object_path: OBJECT_PATH,
            g_interface_name: colorInfo.name,
            g_interface_info: colorInfo,
        });
        this._proxy.connect('g-properties-changed', () => this._sync());
        this._proxy.init_async(GLib.PRIORITY_DEFAULT, null)
            .catch(e => console.error(e.message));

        this._item = new PopupMenu.PopupSubMenuMenuItem("", true);
        this._item.icon.icon_name = 'night-light-symbolic';
        this._disableItem = this._item.menu.addAction('', () => {
            this._proxy.DisabledUntilTomorrow = !this._proxy.DisabledUntilTomorrow;
        });
        this._item.menu.addAction(_("Turn Off"), () => {
            let settings = new Gio.Settings({ schema_id: 'org.gnome.settings-daemon.plugins.color' });
            settings.set_boolean('night-light-enabled', false);
        });
        this._item.menu.addSettingsAction(_("Display Settings"), 'gnome-display-panel.desktop');
        this.menu.addMenuItem(this._item);

        Main.sessionMode.connect('updated', this._sessionUpdated.bind(this));
        this._sessionUpdated();
        this._sync();
    }

    _sessionUpdated() {
        let sensitive = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
        this.menu.setSensitive(sensitive);
    }

    _sync() {
        let visible = this._proxy.NightLightActive;
        let disabled = this._proxy.DisabledUntilTomorrow;

        this._item.label.text = disabled
            ? _("Night Light Disabled")
            : _("Night Light On");
        this._disableItem.label.text = disabled
            ? _("Resume")
            : _("Disable Until Tomorrow");
        this._item.visible = this._indicator.visible = visible;
    }
});