cGmail/lib/utils.py

   1 #
   2 #    Copyright (C) 2007 Marco Ferragina <marco.ferragina@gmail.com>
   3 #
   4 #    This program is free software; you can redistribute it and/or modify
   5 #    it under the terms of the GNU General Public License as published by
   6 #    the Free Software Foundation; either version 2 of the License, or
   7 #    (at your option) any later version.
   8 #
   9 #    This program is distributed in the hope that it will be useful,
  10 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 #    GNU General Public License for more details.
  13 #
  14 #    You should have received a copy of the GNU General Public License
  15 #    along with this program; if not, write to the Free Software
  16 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 import threading
  19 import os
  20 import subprocess
  21 import gconf
  22 import sys
  23
  24 (
  25         GSTPLAY,
  26         GNOMEPLAY,
  27         NOENGINE
  28 ) = range(3)
  29
  30 try:
  31         import gnome
  32         gnome.sound_init("localhost")
  33         ENGINE = GNOMEPLAY
  34         # Disable gnome play, see bug https://bugs.launchpad.net/ubuntu/+bug/153704
  35         # When the bug will be fixed remember to remove the raise ImportError
  36         raise ImportError
  37 except ImportError:
  38         try:
  39                 import gst
  40                 import gobject
  41                 ENGINE = GSTPLAY
  42         except ImportError:
  43                 ENGINE = NOENGINE
  44
  45 class __GstPlayThread(threading.Thread):
  46         def __init__(self, ply):
  47                 self.ply = ply
  48                 threading.Thread.__init__(self)
  49         def run(self):
  50                 self.ply.set_state(gst.STATE_PLAYING)
  51                 def bus_event(bus, message):
  52                         t = message.type
  53                         if t == gst.MESSAGE_EOS:
  54                                 self.ply.set_state(gst.STATE_NULL)
  55                         return True
  56                 self.ply.get_bus().add_watch(bus_event)
  57
  58
  59 def __gstplay(filename):
  60         try:
  61                 cwd = os.getcwd()
  62                 location = os.path.join(cwd, filename)
  63                 ply = gst.element_factory_make("playbin", "player")
  64                 ply.set_property("uri", "file://" + location)
  65                 pt = __GstPlayThread(ply)
  66                 pt.start()
  67         except:
  68                 pass
  69
  70 if ENGINE == GNOMEPLAY:
  71         def playsnd(filename):
  72                 gnome.sound_play(filename)
  73 elif ENGINE == GSTPLAY:
  74         playsnd = __gstplay
  75 else:
  76         def playsnd(filename):
  77                 pass
  78
  79
  80
  81 def invoke_subprocess(cmdline):
  82         try:
  83                 setsid = getattr(os, 'setsid', None)
  84                 p = subprocess.Popen(cmdline, close_fds = True, preexec_fn = setsid)
  85         except OSError:
  86                 print "Warning: cannot execute", cmdline
  87                 return False
  88         return True
  89
  90 def get_default_mail_reader():
  91         client = gconf.client_get_default()
  92         cmd  = client.get_string("/desktop/gnome/url-handlers/mailto/command")
  93         return cmd.split()[0]
  94
  95 def open_mail_reader():
  96         cmdline = get_default_mail_reader()
  97         invoke_subprocess(cmdline)
  98
  99 def open_browser(url):
 100         client = gconf.client_get_default()
 101         cmd  = client.get_string("/desktop/gnome/applications/browser/exec")
 102         cmdline = [cmd.split()[0], url]
 103         invoke_subprocess(cmdline)
 104
 105
 106 if __name__ == "__main__":
 107         import gtk
 108         open_browser("http://google.it")