Adding light-locker-dbus-screenlock

Based on xscreensaver-dbus-screenlock: calls light-locker in place
of gnome-screensaver lock (ie, from indicator-session).

EXTRAS/light-locker-dbus-screenlock/PKGBUILD

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+# Maintainer: Que Quotion <quequotion@bugmenot.com>
+
+pkgname=light-locker-dbus-screenlock
+pkgver=1
+pkgrel=1
+pkgdesc="Emulate's gnome-screensaver's dbus for screen locking with gnome DE's"
+arch=('i686' 'x86_64')
+url="http://ubuntuforums.org/showthread.php?t=1865593&s=1c7f28c50a3f258e1d3404e41f098a0b&p=11418175#post11418175"
+license=('GPL')
+depends=('light-locker' 'python' 'dbus')
+optdepends=('indicator-session: Lock without gnome-screensaver or Unity')
+provides=('gnome-screensaver')
+conflicts=('gnome-screensaver')
+install=${pkgname}.install
+source=('light-locker-dbus-screenlock.py'
+	'light-locker-dbus-screenlock.desktop')
+md5sums=('4bf71f9f23255d3b2a65473011040448'
+         '2190f3207bec78776b7563e2ea4e1c2b')
+
+package() {
+
+  # Don't install light-locker-dbus-screenlock.py script if user has a personalized copy
+  if [ ! -f "/usr/local/sbin/light-locker-dbus-screenlock.py" ]; then
+    install -Ddm755 "${pkgdir}/usr/bin/"
+    install -Dm755 "${srcdir}/light-locker-dbus-screenlock.py" "${pkgdir}/usr/bin/"
+  fi
+
+  install -Ddm755 "${pkgdir}/etc/xdg/autostart/"
+  install -Dm644 "${srcdir}/light-locker-dbus-screenlock.desktop" "${pkgdir}/etc/xdg/autostart/"
+
+}

EXTRAS/light-locker-dbus-screenlock/light-locker-dbus-screenlock.desktop

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+[Desktop Entry]
+Type=Application
+Name=Light-locker DBus Screenlock
+Comment=Replace gnome-screensaver DBus service to call light-locker
+TryExec=light-locker-dbus-screenlock.py
+Exec=light-locker-dbus-screenlock.py
+NotShownIn=Gnome;Unity

EXTRAS/light-locker-dbus-screenlock/light-locker-dbus-screenlock.install

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+post_install() {
+  ln -s /usr/bin/light-locker-command usr/bin/gnome-screensaver-command
+}
+
+post_upgrade() {
+  post_install
+}
+
+post_remove() {
+  rm usr/bin/gnome-screensaver-command
+}
+

EXTRAS/light-locker-dbus-screenlock/light-locker-dbus-screenlock.py

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+#!/usr/bin/env python
+# Replace gnome-screensaver DBus service to call light-locker
+# http://ubuntuforums.org/showthread.php?t=1865593&s=1c7f28c50a3f258e1d3404e41f098a0b&p=11418175#post11418175
+
+import dbus
+import dbus.service
+import dbus.glib
+import gobject
+import subprocess
+
+class ScreenDbusObj(dbus.service.Object):
+    def __init__(self):
+        session_bus = dbus.SessionBus()
+        bus_name=dbus.service.BusName("org.gnome.ScreenSaver",bus=session_bus)
+        dbus.service.Object.__init__(self,bus_name, '/org/gnome/ScreenSaver')
+
+    @dbus.service.method("org.gnome.ScreenSaver")
+    def Lock(self):
+        subprocess.Popen(['light-locker-command', '-l'])
+
+
+if __name__ == '__main__':
+    object=ScreenDbusObj()
+    gobject.MainLoop().run()