Add [email protected] applet

files/usr/share/cinnamon/applets/nightlight@cinnamon.org/applet.js

@@ -0,0 +1,51 @@
+const Applet = imports.ui.applet;
+const Gio = imports.gi.Gio;
+const PopupMenu = imports.ui.popupMenu;
+const Util = imports.misc.util;
+const St = imports.gi.St;
+
+class NightLightSwitch extends Applet.IconApplet {
+  constructor(metadata, orientation, panelHeight, instance_id) {
+    super(orientation, panelHeight, instance_id);
+
+    this.gsettings = Gio.Settings.new("org.cinnamon.settings-daemon.plugins.color");
+    this.nightLightEnabled = this.gsettings.get_boolean("night-light-enabled");
+    this.connectColorID = this.gsettings.connect("changed", () => this.set_icon());
+    this.set_icon();
+
+    let items = this._applet_context_menu._getMenuItems();
+    if (this.context_menu_item_configure == null) {
+      this.context_menu_item_configure = new PopupMenu.PopupIconMenuItem(_("Configure..."),
+        "system-run",
+        St.IconType.SYMBOLIC);
+      this.context_menu_item_configure.connect('activate',
+        () => { Util.spawnCommandLineAsync("cinnamon-settings nightlight"); }
+      );
+    }
+    if (items.indexOf(this.context_menu_item_configure) == -1) {
+      this._applet_context_menu.addMenuItem(this.context_menu_item_configure);
+    }
+  }
+
+  on_applet_clicked() {
+    this.gsettings.set_boolean("night-light-enabled", !this.nightLightEnabled);
+    this.set_icon();
+  }
+
+  set_icon() {
+    this.nightLightEnabled = this.gsettings.get_boolean("night-light-enabled");
+    if (this.nightLightEnabled) {
+      this.set_applet_icon_symbolic_name("night-light");
+    } else {
+      this.set_applet_icon_symbolic_name("night-light-disabled");
+    }
+  }
+
+  on_applet_removed_from_panel() {
+    this.gsettings.disconnect(this.connectColorID);
+  }
+}
+
+function main(metadata, orientation, panel_height, instance_id) {
+    return new NightLightSwitch(metadata, orientation, panel_height, instance_id);
+}

files/usr/share/cinnamon/applets/nightlight@cinnamon.org/metadata.json

@@ -0,0 +1,8 @@
+{
+    "description": "Activate/deactivate Night Light mode.",
+    "icon": "cs-nightlight",
+    "max-instances": "1",
+    "hide-configuration": true,
+    "uuid": "[email protected]",
+    "name": "Night Light"
+}