mate-indicator-applet: init at 1.18.1

pkgs/desktops/mate/default.nix

···
     mate-desktop = callPackage ./mate-desktop { };
     mate-icon-theme = callPackage ./mate-icon-theme { };
     mate-icon-theme-faenza = callPackage ./mate-icon-theme-faenza { };
+    mate-indicator-applet = callPackage ./mate-indicator-applet { };
     mate-media = callPackage ./mate-media { };
     mate-menus = callPackage ./mate-menus { };
     mate-netbook = callPackage ./mate-netbook { };
···
       mate-backgrounds
       mate-calc
       mate-icon-theme-faenza
+      mate-indicator-applet
       mate-media
       mate-netbook
       mate-power-manager

pkgs/desktops/mate/mate-indicator-applet/default.nix

···
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libindicator-gtk3, mate-panel, hicolor_icon_theme, wrapGAppsHook }:
+
+stdenv.mkDerivation rec {
+  name = "mate-indicator-applet-${version}";
+  version = "${major-ver}.${minor-ver}";
+  major-ver = "1.18";
+  minor-ver = "1";
+
+  src = fetchurl {
+    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
+    sha256 = "1h77f1gbz1a8l9xyq5fk75bs58mcwx6pbk6db33v0v1mwq6cidiv";
+  };
+
+  nativeBuildInputs = [
+    pkgconfig
+    intltool
+    wrapGAppsHook
+  ];
+
+  buildInputs = [
+    gtk3
+    libindicator-gtk3
+    mate-panel
+    hicolor_icon_theme
+  ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/mate-desktop/mate-indicator-applet;
+    description = "MATE panel indicator applet";
+    longDescription = ''
+      A small applet to display information from various applications
+      consistently in the panel.
+       
+      The indicator applet exposes Ayatana Indicators in the MATE Panel.
+      Ayatana Indicators are an initiative by Canonical to provide crisp and
+      clean system and application status indication. They take the form of
+      an icon and associated menu, displayed (usually) in the desktop panel.
+      Existing indicators include the Message Menu, Battery Menu and Sound
+      menu.
+    '';
+    license = with licenses; [ gpl3Plus lgpl2Plus ];
+    platforms = platforms.unix;
+    maintainers = [ maintainers.romildo ];
+  };
+}