/usr/share/pyshared/gtweak/utils.py is in gnome-tweak-tool 3.4.0.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2011 John Stowers
#
# gnome-tweak-tool 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 3 of the License, or
# (at your option) any later version.
#
# gnome-tweak-tool 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 gnome-tweak-tool. If not, see <http://www.gnu.org/licenses/>.
import os.path
import logging
import tempfile
import shutil
import gtweak
from gtweak.gsettings import GSettingsSetting
from gtweak.gconf import GConfSetting
from gi.repository import GLib
def singleton(cls):
"""
Singleton decorator that works with GObject derived types. The 'recommended'
python one - http://wiki.python.org/moin/PythonDecoratorLibrary#Singleton
does not (interacts badly with GObjectMeta
"""
instances = {}
def getinstance():
if cls not in instances:
instances[cls] = cls()
return instances[cls]
return getinstance
def make_combo_list_with_default(opts, default, title=True, default_text=None):
"""
Turns a list of values into a list of value,name (where name is the
display name a user will see in a combo box). If a value is opt is
equal to that supplied in default the display name for that value is
modified to "value <i>(default)</i>"
@opts: a list of value
@returns: a list of 2-tuples (value, name)
"""
themes = []
for t in opts:
if t.lower() == "default" and t != default:
#some themes etc are actually called default. Ick. Dont show them if they
#are not the actual default value
continue
if title and len(t):
name = t[0].upper() + t[1:]
else:
name = t
if t == default:
#indicates the default theme, e.g Adwaita (default)
name = default_text or _("%s <i>(default)</i>") % name
themes.append((t, name))
return themes
def walk_directories(dirs, filter_func):
valid = []
try:
for thdir in dirs:
if os.path.isdir(thdir):
for t in os.listdir(thdir):
if filter_func(os.path.join(thdir, t)):
valid.append(t)
except:
logging.critical("Error parsing directories", exc_info=True)
return valid
def extract_zip_file(z, members_path, dest):
""" returns (true_if_extracted_ok, true_if_updated) """
tmp = tempfile.mkdtemp()
tmpdest = os.path.join(tmp, members_path)
ok = True
updated = False
try:
if os.path.exists(dest):
shutil.rmtree(dest)
updated = True
z.extractall(tmp)
shutil.copytree(tmpdest, dest)
except OSError:
ok = False
logging.warning("Error extracting zip", exc_info=True)
if ok:
logging.info("Extracted zip to %s, copied to %s" % (tmpdest, dest))
return ok, updated
class AutostartManager:
def __init__(self, desktop_filename, autostart_desktop_filename="", exec_cmd="", extra_exec_args=""):
self.desktop_filename = desktop_filename
self._autostart_desktop_filename = autostart_desktop_filename or desktop_filename
self._exec_cmd = exec_cmd
self._extra_exec_args = " %s\n" % extra_exec_args
user_autostart_dir = os.path.join(GLib.get_user_config_dir(), "autostart")
if not os.path.isdir(user_autostart_dir):
try:
os.makedirs(user_autostart_dir)
except:
logging.critical("Could not create autostart dir: %s" % user_autostart_dir)
#find the desktop file
self._desktop_file = ""
for f in self._get_desktop_files():
if os.path.exists(f):
self._desktop_file = f
self._user_autostart_file = os.path.join(user_autostart_dir, self._autostart_desktop_filename)
logging.debug("Found desktop file: %s" % self._desktop_file)
logging.debug("User autostart desktop file: %s" % self._user_autostart_file)
def _get_system_autostart_files(self):
return [
os.path.join(d, "autostart", self._autostart_desktop_filename)
for d in GLib.get_system_config_dirs()]
def _get_desktop_files(self):
dirs = [gtweak.DATA_DIR, GLib.get_user_data_dir()]
dirs.extend(GLib.get_system_data_dirs())
return [os.path.join(d, "applications", self.desktop_filename) for d in dirs]
def get_autostart_condition(self):
for f in self._get_system_autostart_files():
if os.path.exists(f):
with open(f, 'r') as f:
for l in f.readlines():
if l.startswith("AutostartCondition="):
return l.split("=")[-1].strip()
return None
def uses_autostart_condition(self, autostart_type=None):
asc = self.get_autostart_condition()
try:
if autostart_type:
return asc.split(" ", 1)[0] == autostart_type
else:
return asc != None
except:
logging.warning("Testing for expected AutostartCondition failed: Got (%s)" % asc, exc_info=True)
return False
def is_start_at_login_enabled(self):
if os.path.exists(self._user_autostart_file):
#prefer user directories first
#if it contains X-GNOME-Autostart-enabled=false then it has
#has been disabled by the user in the session applet, otherwise
#it is enabled
return open(self._user_autostart_file).read().find("X-GNOME-Autostart-enabled=false") == -1
else:
#check the system directories
for f in self._get_system_autostart_files():
if os.path.exists(f):
return True
return False
def update_start_at_login(self, update):
if os.path.exists(self._user_autostart_file):
logging.info("Removing user autostart file %s" % self._user_autostart_file)
os.remove(self._user_autostart_file)
asc = self.get_autostart_condition()
if asc:
#AutostartCondition=GNOME /desktop/gnome/interface/accessibility
#AutostartCondition=GNOME3 if-session gnome-fallback
#AutostartCondition=GSettings org.gnome.desktop.background show-desktop-icons
method, value = asc.split(" ", 1)
try:
logging.info("Changing AutostartCondition %s -> %s" % (method, update))
if method == "GSettings":
schema, key = value.split(" ")
GSettingsSetting(schema).set_boolean(key, update)
elif method == "GNOME":
GConfSetting(shema, bool).set_value(update)
else:
raise Exception("Method not supported")
except:
logging.warning("Autostart desktop file unsupported AutostartCondition (%s)" % asc, exc_info=True)
return
if update:
if (not self._desktop_file) or (not os.path.exists(self._desktop_file)):
logging.critical("Could not find desktop file: %s" % self._desktop_file)
return
logging.info("Adding autostart %s" % self._user_autostart_file)
#copy the original file to the new file, but add the extra exec args
old = open(self._desktop_file, "r")
new = open(self._user_autostart_file, "w")
for l in old.readlines():
if l.startswith("Exec="):
if self._exec_cmd:
new.write("Exec=%s\n" % self._exec_cmd)
else:
new.write(l[0:-1])
new.write(self._extra_exec_args)
else:
new.write(l)
old.close()
new.close()
if __name__ == "__main__":
gtweak.DATA_DIR = "/usr/share"
gtweak.GSETTINGS_SCHEMA_DIR = "/usr/share/glib-2.0/schemas/"
logging.basicConfig(format="%(levelname)-8s: %(message)s", level=logging.DEBUG)
d = AutostartManager("matlab.desktop")
print d.desktop_filename, "uses autostartcondition", d.uses_autostart_condition()
print d.desktop_filename, "autostarts", d.is_start_at_login_enabled()
d.update_start_at_login(True)
print d.desktop_filename, "autostarts", d.is_start_at_login_enabled()
d.update_start_at_login(False)
print d.desktop_filename, "autostarts", d.is_start_at_login_enabled()
d = AutostartManager("orca.desktop", "orca-autostart.desktop")
print d.desktop_filename, "uses autostartcondition", d.uses_autostart_condition()
print d.desktop_filename, "autostartcondition is:", d.get_autostart_condition()
print d.desktop_filename, "uses GSettings autostartcondition", d.uses_autostart_condition("GSettings")
print d.desktop_filename, "autostarts", d.is_start_at_login_enabled()
d = AutostartManager("dropbox.desktop")
print d.desktop_filename, "uses autostartcondition", d.uses_autostart_condition()
print d.desktop_filename, "autostarts", d.is_start_at_login_enabled()
d = AutostartManager("nautilus.desktop", "nautilus-autostart.desktop")
print d.desktop_filename, "uses autostartcondition", d.uses_autostart_condition()
d.update_start_at_login(False)
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