Introduce updates indicator

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/466

js/js-resources.gresource.xml

@@ -121,6 +121,7 @@
     <file>ui/components/keyring.js</file>
 
     <file>ui/status/accessibility.js</file>
+    <file>ui/status/automaticUpdates.js</file>
     <file>ui/status/brightness.js</file>
     <file>ui/status/location.js</file>
     <file>ui/status/keyboard.js</file>

js/ui/panel.js

@@ -774,10 +774,17 @@ class AggregateMenu extends PanelMenu.Button {
         this._nightLight = new imports.ui.status.nightLight.Indicator();
         this._thunderbolt = new imports.ui.status.thunderbolt.Indicator();
 
+        if (Main.sessionMode.components.includes('updates'))
+            this._automaticUpdates = new imports.ui.status.automaticUpdates.Indicator();
+        else
+            this._automaticUpdates = null;
+
         this._indicators.add_child(this._thunderbolt.indicators);
         this._indicators.add_child(this._screencast.indicators);
         this._indicators.add_child(this._location.indicators);
         this._indicators.add_child(this._nightLight.indicators);
+        if (this._automaticUpdates)
+            this._indicators.add_child(this._automaticUpdates.indicators);
         if (this._network) {
             this._indicators.add_child(this._network.indicators);
         }
@@ -796,6 +803,8 @@ class AggregateMenu extends PanelMenu.Button {
         if (this._network) {
             this.menu.addMenuItem(this._network.menu);
         }
+        if (this._automaticUpdates)
+            this.menu.addMenuItem(this._automaticUpdates.menu);
         if (this._bluetooth) {
             this.menu.addMenuItem(this._bluetooth.menu);
         }

js/ui/status/automaticUpdates.js

@@ -0,0 +1,144 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+//
+// Copyright (C) 2018 Endless Mobile, Inc.
+//
+// This is a GNOME Shell component to wrap the interactions over
+// D-Bus with the Mogwai system daemon.
+//
+// Licensed under the GNU General Public License Version 2
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+const { Gio, GLib, Shell, St } = imports.gi;
+
+const UpdateManager = imports.misc.updateManager;
+
+const Main = imports.ui.main;
+const MessageTray = imports.ui.messageTray;
+const PanelMenu = imports.ui.panelMenu;
+const PopupMenu = imports.ui.popupMenu;
+
+const NM_SETTING_AUTOMATIC_UPDATES_NOTIFICATION_TIME = "connection.automatic-updates-notification-time";
+const NM_SETTING_ALLOW_DOWNLOADS = 'connection.allow-downloads';
+const NM_SETTING_TARIFF_ENABLED = "connection.tariff-enabled";
+
+const SchedulerInterface = '\
+<node> \
+  <interface name="com.endlessm.DownloadManager1.Scheduler"> \
+    <property name="ActiveEntryCount" type="u" access="read" /> \
+    <property name="EntryCount" type="u" access="read" /> \
+  </interface> \
+</node>';
+
+const SchedulerProxy = Gio.DBusProxy.makeProxyWrapper(SchedulerInterface);
+
+var Indicator = class extends PanelMenu.SystemIndicator {
+    constructor() {
+        super();
+
+        this._indicator = this._addIndicator();
+        this._indicator.visible = false;
+
+        this._item = new PopupMenu.PopupSubMenuMenuItem("", true);
+        this._toggleItem = this._item.menu.addAction("", this._toggleAutomaticUpdates.bind(this));
+        this._item.menu.addAction(_("Updates Queue"), () => {
+            let params = new GLib.Variant('(sava{sv})', [ 'set-mode', [ new GLib.Variant('s', 'updates') ], {} ]);
+            Gio.DBus.session.call('org.gnome.Software',
+                                  '/org/gnome/Software',
+                                  'org.gtk.Actions',
+                                  'Activate',
+                                  params,
+                                  null,
+                                  Gio.DBusCallFlags.NONE,
+                                  5000,
+                                  null,
+                                  (conn, result) => {
+                                      try {
+                                          conn.call_finish(result);
+                                      } catch (e) {
+                                          logError(e, 'Failed to start gnome-software');
+                                      }
+                                  });
+
+        });
+        this._item.menu.addSettingsAction(_("Set a Schedule"), 'gnome-updates-panel.desktop');
+        this.menu.addMenuItem(this._item);
+
+        this._manager = UpdateManager.getUpdateManager();
+        this._manager.connect('notify::state', this._updateState.bind(this));
+
+        this._updateState();
+    }
+
+    _updateState() {
+        this._updateStatus();
+    }
+
+    _sessionUpdated() {
+        let sensitive = !Main.sessionMode.isLocked && !Main.sessionMode.isGreeter;
+        this.menu.setSensitive(sensitive);
+    }
+
+    _updateStatus() {
+        // Toggle item name
+        this._updateItem();
+
+        // Icons
+        let icon = this._getIcon()
+
+        this._item.icon.gicon = icon;
+        this._indicator.gicon = icon;
+
+        // Only show the Automatic Updates icon at the bottom bar when it is
+        // both enabled, and there are updates being downloaded or installed.
+        this._updateVisibility();
+
+        // The status label
+        this._item.label.text = _("Automatic Updates");
+    }
+
+    _updateItem() {
+        let state = this._manager.state;
+
+        if (state == UpdateManager.State.DISABLED)
+            this._toggleItem.label.text = _("Turn On");
+        else
+            this._toggleItem.label.text = _("Turn Off");
+    }
+
+    _toggleAutomaticUpdates() {
+        this._manager.toggleAutomaticUpdates();
+    }
+
+    _getIcon() {
+        let state = this._manager.state;
+        let iconName = UpdateManager.stateToIconName(state);
+
+        if (!iconName)
+            return null;
+
+        let iconFile = Gio.File.new_for_uri(iconName);
+        let gicon = new Gio.FileIcon({ file: iconFile });
+
+        return gicon;
+    }
+
+    _updateVisibility() {
+        let state = this._manager.state;
+
+        this._item.actor.visible = (state != UpdateManager.State.DISCONNECTED);
+        this._indicator.visible = (state == UpdateManager.State.DOWNLOADING);
+    }
+};