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#!/usr/bin/env python
## my-default-printer
## Copyright (C) 2006, 2007, 2008 Red Hat, Inc.
## Copyright (C) 2007, 2008 Tim Waugh <twaugh@redhat.com>
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
import cups
import gobject
import gtk
import os
import signal
import sys
domain='system-config-printer'
import locale
try:
locale.setlocale (locale.LC_ALL, "")
except locale.Error, e:
os.environ['LC_ALL'] = 'C'
locale.setlocale (locale.LC_ALL, "")
from gettext import gettext as _
import gettext
gettext.textdomain (domain)
def handle_sigchld (signum, stack):
try:
(pid, status) = os.wait ()
exitcode = os.WEXITSTATUS (status)
if exitcode != 0:
print "Child exit status %d" % exitcode
except OSError:
pass
signal.signal (signal.SIGCHLD, handle_sigchld)
class Server:
def __init__ (self):
self.cups_connection = cups.Connection()
try:
lpoptions = os.environ["HOME"]
except KeyError:
try:
lpoptions = "/home/" + os.environ["USER"]
except KeyError:
lpoptions = None
if lpoptions:
lpoptions += "/.cups/lpoptions"
self.lpoptions = lpoptions
def clearUserDefault (self):
if not self.lpoptions:
return
try:
opts = file (self.lpoptions).readlines ()
except IOError:
return
for i in range (len (opts)):
if opts[i].startswith ("Default "):
opts[i] = "Dest " + opts[i][8:]
file (self.lpoptions, "w").writelines (opts)
def setUserDefault (self, default):
pid = os.fork ()
if pid == 0:
# Child
null = file ("/dev/null", "r+")
f = null.fileno ()
if f != 0:
os.dup2 (f, 0)
if f != 1:
os.dup2 (f, 1)
os.execvp ("lpoptions", [ "lpoptions", "-d", default ])
sys.exit (1)
# Parent
return
def isUserDefaultSet (self):
if self.getUserDefault () != self.getSystemDefault ():
return True
if self.lpoptions:
try:
opts = file (self.lpoptions).readlines ()
except IOError:
return False
for opt in opts:
if opt.startswith ("Default "):
return True
return False
def getUserDefault (self):
dests = self.cups_connection.getDests ()
if dests.has_key ((None, None)):
return dests[(None, None)].name
for ((name, instance), dest) in dests.iteritems ():
if dest.is_default:
return name
return None
def getSystemDefault (self):
try:
return self.cups_connection.getDefault ()
except:
pass
return None
class Dialog:
def __init__ (self):
gtk.window_set_default_icon_name ('printer')
self.dialog = gtk.Dialog (_("Default Printer"),
None,
gtk.DIALOG_MODAL | gtk.DIALOG_NO_SEPARATOR,
(gtk.STOCK_CLOSE, gtk.RESPONSE_CLOSE,
_("_Use System Default"), gtk.RESPONSE_NO,
_("_Set Default"), gtk.RESPONSE_OK))
self.dialog.set_default_response (gtk.RESPONSE_OK)
self.dialog.set_border_width (6)
self.dialog.vbox.set_spacing (2)
vbox = gtk.VBox (False, 6)
self.dialog.vbox.pack_start (vbox, True, True, 0)
vbox.set_border_width (6)
self.model = gtk.ListStore (gobject.TYPE_STRING, gobject.TYPE_STRING)
self.model.set_sort_column_id (0, gtk.SORT_ASCENDING)
view = gtk.TreeView (self.model)
col = gtk.TreeViewColumn (_("Printer"), gtk.CellRendererText (),
text=0)
col.set_sort_column_id (0)
view.append_column (col)
col = gtk.TreeViewColumn (_("Location"), gtk.CellRendererText (),
text=1)
col.set_sort_column_id (1)
view.append_column (col)
self.view = view
view.get_selection ().connect ('changed', self.selection_changed)
scrollwin = gtk.ScrolledWindow ()
scrollwin.set_shadow_type (gtk.SHADOW_IN)
scrollwin.set_policy (gtk.POLICY_AUTOMATIC,
gtk.POLICY_AUTOMATIC)
scrollwin.add (view)
vbox.pack_start (scrollwin, True, True, 0)
self.dialog.set_default_size (320, 240)
self.server = Server ()
for button in self.dialog.action_area.get_children ():
if button.get_label () == _("_Use System Default"):
self.system_default_button = button
elif button.get_label () == _("_Set Default"):
self.set_default_button = button
def selection_changed (self, selection):
(model, iter) = selection.get_selected ()
if iter:
self.last_iter_selected = iter
else:
selection.select_iter (self.last_iter_selected)
def run (self):
c = cups.Connection ()
printers = c.getPrinters ()
del c
user_default = self.server.getUserDefault ()
for (name, info) in printers.iteritems ():
iter = self.model.append ()
self.model.set_value (iter, 0, name)
self.model.set_value (iter, 1, info['printer-location'])
if name == user_default:
self.view.get_selection ().select_iter (iter)
self.system_default_button.set_sensitive (self.server.
isUserDefaultSet ())
self.set_default_button.set_sensitive (len (printers) > 0)
self.dialog.show_all ()
self.dialog.connect ("response", self.response)
gtk.main ()
def response (self, dialog, response):
if (response == gtk.RESPONSE_CLOSE or
response == gtk.RESPONSE_DELETE_EVENT):
gtk.main_quit ()
try:
if response == gtk.RESPONSE_OK:
(model, iter) = self.view.get_selection ().get_selected ()
name = model.get_value (iter, 0)
self.server.setUserDefault (name)
self.system_default_button.set_sensitive (True)
elif response == gtk.RESPONSE_NO:
self.server.clearUserDefault ()
system_default = self.server.getSystemDefault ()
iter = self.model.get_iter_first ()
while iter:
name = self.model.get_value (iter, 0)
if name == system_default:
self.view.get_selection ().select_iter (iter)
break
iter = self.model.iter_next (iter)
self.system_default_button.set_sensitive (False)
except cups.IPPError, (e, s):
if e == cups.IPP_SERVICE_UNAVAILABLE:
error_out ('<span weight="bold" size="larger">' +
'CUPS server error' + '</span>\n\n' +
'The CUPS scheduler is not running.')
else:
error_out ('<span weight="bold" size="larger">' +
'CUPS server error' + '</span>\n\n' +
'There was an error during the CUPS operation: ' +
s)
def error_out (msg):
d = gtk.MessageDialog (None, 0, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, '')
d.set_markup (msg)
d.run ()
d.destroy ()
sys.exit (1)
try:
d = Dialog()
d.run ()
except RuntimeError:
error_out ('<span weight="bold" size="larger">' +
'CUPS server error' + '</span>\n\n' +
'The CUPS scheduler is not running.')
except cups.IPPError, (e, s):
if e == cups.IPP_SERVICE_UNAVAILABLE:
error_out ('<span weight="bold" size="larger">' +
'CUPS server error' + '</span>\n\n' +
'The CUPS scheduler is not running.')
else:
error_out ('<span weight="bold" size="larger">' +
'CUPS server error' + '</span>\n\n' +
'There was an error during the CUPS operation: ' +
s)
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