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Python Source  |  2009-03-27  |  2.5 KB  |  73 lines
  1. # dialog_cache_outdated.py - inform the user to update the apt cache
  2. #  
  3. #  Copyright (c) 2006 Canonical
  4. #  
  5. #  Authors: 
  6. #       Sebastian Heinlein <sebastian.heinlein@web.de>
  7. # 
  8. #  This program is free software; you can redistribute it and/or 
  9. #  modify it under the terms of the GNU General Public License as 
  10. #  published by the Free Software Foundation; either version 2 of the
  11. #  License, or (at your option) any later version.
  12. # 
  13. #  This program is distributed in the hope that it will be useful,
  14. #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16. #  GNU General Public License for more details.
  17. # 
  18. #  You should have received a copy of the GNU General Public License
  19. #  along with this program; if not, write to the Free Software
  20. #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21. #  USA
  22.  
  23. import os
  24. import subprocess
  25. import thread
  26. import time
  27. import gobject
  28. import gtk
  29. import gtk.glade
  30. import apt_pkg
  31.  
  32. class DialogCacheOutdated:
  33.     def __init__(self, parent, datadir):
  34.         """setup up the gtk dialog"""
  35.         self.parent = parent
  36.  
  37.         if os.path.exists("../data/dialogs.glade"):
  38.             self.gladexml = gtk.glade.XML("../data/dialogs.glade")
  39.         else:
  40.             self.gladexml = gtk.glade.XML("%s/glade/dialogs.glade" % datadir)
  41.         self.dialog = self.gladexml.get_widget("dialog_cache_outofdate")
  42.         self.dialog.set_transient_for(parent)
  43.  
  44.     def update_cache(self, window_id, lock):
  45.         """start synaptic to update the package cache"""
  46.         try:
  47.             apt_pkg.PkgSystemUnLock()
  48.         except SystemError:
  49.             pass
  50.         cmd = ["/usr/sbin/synaptic", "--hide-main-window",
  51.                "--non-interactive",
  52.                "--parent-window-id", "%s" % (window_id),
  53.                "--update-at-startup"]
  54.         subprocess.call(cmd)
  55.         lock.release()
  56.  
  57.     def run(self):
  58.         """run the dialog, and if reload was pressed run synaptic"""
  59.         res = self.dialog.run()
  60.         self.dialog.hide()
  61.         if res == gtk.RESPONSE_APPLY:
  62.             self.parent.set_sensitive(False)
  63.             lock = thread.allocate_lock()
  64.             lock.acquire()
  65.             t = thread.start_new_thread(self.update_cache,
  66.                                        (self.parent.window.xid, lock))
  67.             while lock.locked():
  68.                 while gtk.events_pending():
  69.                     gtk.main_iteration()
  70.                     time.sleep(0.05)
  71.             self.parent.set_sensitive(True)
  72.         return res
  73.