#!/usr/bin/env python

#  Decription
#  -----------
#  Script to run append Notify OSD messages as shown on http://thexnews.com/uploads/notify.gif
#  Since x-canonical-append is broken in notify-send for example in Skype you will wait forever untill all messages are shown
#  This script makes new messages shown in same notification window bellow the already shown
#  Created as addition to notify-send. Use notify-send when you want to send notification and notify-append when you want append or replace it.
#  [Readme in russian](http://thexnews.com/p/554)

#  Author: [Dmitry](http://dmi3.net) [Source](https://github.com/dmi3/bin)

usage = """Usage:
notify-append title name [icon] [-r]
  -r  - replace previous message instead of appending to it
"""

import gtk,dbus,dbus.service,dbus.glib,sys

class NotifyAppendService(dbus.service.Object):
  previous_id = 0

  def __init__(self):
    bus_name = dbus.service.BusName('net.dmi3.Notify', bus = dbus.SessionBus())
    dbus.service.Object.__init__(self, bus_name, '/net/dmi3/Notify')

  @dbus.service.method(dbus_interface='net.dmi3.Notify')
  def notify(self, title, text, icon = "", replace = False):
    item              = "org.freedesktop.Notifications"
    path              = "/org/freedesktop/Notifications"
    interface         = "org.freedesktop.Notifications"
    app_name          = "Notify Append"
    id_num_to_replace = self.previous_id if replace else 0
    actions_list      = ''
    hint              = {"x-canonical-append":"allowed"}
    time              = 1000   # Doesn't matter

    bus = dbus.SessionBus()
    notif = bus.get_object(item, path)
    notify = dbus.Interface(notif, interface)
    self.previous_id = notify.Notify(app_name, id_num_to_replace, icon, title, text, actions_list, hint, time)

if __name__ == "__main__":
  replace = "-r" in sys.argv
  if replace:
    sys.argv.remove("-r")

  if len(sys.argv)==3:
    sys.argv.append("")
  elif len(sys.argv)<3:
    print(usage)
    sys.exit()

  if dbus.SessionBus().request_name("net.dmi3.Notify") != dbus.bus.REQUEST_NAME_REPLY_PRIMARY_OWNER:
    notify = dbus.SessionBus().get_object("net.dmi3.Notify", "/net/dmi3/Notify").get_dbus_method("notify")
    notify(sys.argv[1],sys.argv[2],sys.argv[3],replace)
  else:
    service = NotifyAppendService()
    service.notify(sys.argv[1],sys.argv[2],sys.argv[3],replace)
    gtk.main() #to keep script running