/usr/share/system-config-printer/troubleshoot/DeviceListed.py is in system-config-printer-gnome 1.5.7+20160212-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | #!/usr/bin/python3
## Printing troubleshooter
## Copyright (C) 2008, 2012 Red Hat, Inc.
## Copyright (C) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from gi.repository import Gtk
class NoDevice:
pass
NotListed = NoDevice()
import cups
from gi.repository import GObject
from timedops import TimedOperation
from .base import *
class DeviceListed(Question):
def __init__ (self, troubleshooter):
# Is the device listed?
Question.__init__ (self, troubleshooter, "Choose device")
page1 = self.initial_vbox (_("Choose Device"),
_("Please select the device you want "
"to use from the list below. "
"If it does not appear in the list, "
"select 'Not listed'."))
tv = Gtk.TreeView ()
name = Gtk.TreeViewColumn (_("Name"),
Gtk.CellRendererText (), text=0)
info = Gtk.TreeViewColumn (_("Information"),
Gtk.CellRendererText (), text=1)
uri = Gtk.TreeViewColumn (_("Device URI"),
Gtk.CellRendererText (), text=2)
name.set_property ("resizable", True)
info.set_property ("resizable", True)
uri.set_property ("resizable", True)
tv.append_column (name)
tv.append_column (info)
tv.append_column (uri)
tv.set_rules_hint (True)
sw = Gtk.ScrolledWindow ()
sw.set_policy (Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
sw.set_shadow_type (Gtk.ShadowType.IN)
sw.add (tv)
page1.pack_start (sw, True, True, 0)
self.treeview = tv
troubleshooter.new_page (page1, self)
def display (self):
self.answers = {}
answers = self.troubleshooter.answers
if (answers['printer_is_remote'] or
answers.get ('cups_printer_remote', False)):
return False
model = Gtk.ListStore (str,
str,
str,
GObject.TYPE_PYOBJECT)
self.treeview.set_model (model)
iter = model.append (None)
model.set (iter, 0, _("Not listed"), 1, '', 2, '', 3, NotListed)
devices = {}
parent = self.troubleshooter.get_window ()
# Skip device list if this page is hidden and we're skipping
# backwards past it.
if not (answers['cups_queue_listed'] and
self.troubleshooter.is_moving_backwards ()):
# Otherwise, fetch devices.
self.authconn = answers['_authenticated_connection']
try:
self.op = TimedOperation (self.authconn.getDevices,
parent=parent)
devices = self.op.run ()
devices_list = []
for uri, device in devices.items ():
if uri.find (':') == -1:
continue
if device.get('device-class') != 'direct':
continue
name = device.get('device-info', _("Unknown"))
info = device.get('device-make-and-model', _("Unknown"))
devices_list.append ((name, info, uri, device))
devices_list.sort (key=lambda x: x[0])
for name, info, uri, device in devices_list:
iter = model.append (None)
model.set (iter, 0, name, 1, info, 2, uri, 3, device)
except cups.HTTPError:
pass
except cups.IPPError:
pass
except RuntimeError:
pass
if answers['cups_queue_listed']:
try:
printer_dict = answers['cups_printer_dict']
uri = printer_dict['device-uri']
device = devices[uri]
self.answers['cups_device_dict'] = device
except KeyError:
pass
return False
return True
def connect_signals (self, handler):
self.signal_id = self.treeview.connect ("cursor-changed", handler)
def disconnect_signals (self):
self.treeview.disconnect (self.signal_id)
def can_click_forward (self):
model, iter = self.treeview.get_selection ().get_selected ()
if iter is None:
return False
return True
def collect_answer (self):
if not self.displayed:
return self.answers
model, iter = self.treeview.get_selection ().get_selected ()
device = model.get_value (iter, 3)
if device == NotListed:
class enum_devices:
def __init__ (self, model):
self.devices = {}
model.foreach (self.each, None)
def each (self, model, path, iter, user_data):
uri = model.get_value (iter, 2)
device = model.get_value (iter, 3)
if device != NotListed:
self.devices[uri] = device
self.answers['cups_device_listed'] = False
avail = enum_devices (model).devices
self.answers['cups_devices_available'] = avail
else:
uri = model.get_value (iter, 2)
self.answers['cups_device_listed'] = True
self.answers['cups_device_uri'] = uri
self.answers['cups_device_attributes'] = device
return self.answers
def cancel_operation (self):
self.op.cancel ()
# Abandon the CUPS connection and make another.
answers = self.troubleshooter.answers
factory = answers['_authenticated_connection_factory']
self.authconn = factory.get_connection ()
self.answers['_authenticated_connection'] = self.authconn
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