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gnome-panel-add
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2010-05-12
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#!/usr/bin/python
# vim: set ts=4 sw=4 et:
#
# Copyright (C) 2009 Novell, Inc.
#
# Authors: Vincent Untz <vuntz@gnome.org>
#
# 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 optparse
import os
import shutil
import sys
import urllib
import bonobo
import gconf
PANEL_SCHEMAS_OBJECTS_DIR='/schemas/apps/panel/objects'
PANEL_TOPLEVELS_DIR='/apps/panel/toplevels'
PANEL_TOPLEVELS_KEY='/apps/panel/general/toplevel_id_list'
PANEL_APPLETS_DIR='/apps/panel/applets'
PANEL_APPLETS_KEY='/apps/panel/general/applet_id_list'
PANEL_OBJECTS_DIR='/apps/panel/objects'
PANEL_OBJECTS_KEY='/apps/panel/general/object_id_list'
PANEL_LAUNCHER_USER_DIR=os.path.join(os.path.expanduser('~'), '.gnome2', 'panel2.d', 'default', 'launchers')
PANEL_TYPE_NONE = 0
PANEL_TYPE_APPLET = 1
PANEL_TYPE_LAUNCHER = 2
class PanelAddException(Exception):
pass
class PanelAdder:
def __init__(self, toplevel, position, right_stick, applet_iid = None, launcher_path = None, copy_launcher = False):
self.toplevel = toplevel
self.position = position
self.right_stick = right_stick
# FIXME workaround: -1 and right_click don't play well together. Just
# use an arbitrary value so that the applet ends up at the left of all
# right-click applets (it'd be surprising to have a config with more
# than 10 applets...)
if self.right_stick and self.position < 0:
self.position = 10
self.type = PANEL_TYPE_NONE
self.applet_iid = None
self.launcher_path = None
self.copy_launcher = False
self.client = None
if applet_iid:
self._set_applet_iid(applet_iid)
self.type = PANEL_TYPE_APPLET
elif launcher_path:
self._set_launcher_path(launcher_path)
self.copy_launcher = copy_launcher
self.type = PANEL_TYPE_LAUNCHER
def _panel_get_subdirs(self, key):
return [ os.path.basename(s) for s in self.client.all_dirs(key) ]
def _panel_get_list(self, key):
list_v = self.client.get(key)
if not list_v:
return []
if list_v.type != gconf.VALUE_LIST or list_v.get_list_type() != gconf.VALUE_STRING:
return []
return [ v.get_string() for v in list_v.get_list() ]
def _toplevel_id_ensure(self):
toplevel_subdirs = self._panel_get_subdirs(PANEL_TOPLEVELS_DIR)
toplevel_id_list = self._panel_get_list(PANEL_TOPLEVELS_KEY)
if self.toplevel:
if not self.toplevel in toplevel_subdirs or not self.toplevel in toplevel_id_list:
raise PanelAddException('%s is not an existing panel identifier' % self.toplevel)
else:
for toplevel in toplevel_id_list:
if toplevel in toplevel_subdirs:
self.toplevel = toplevel
return
raise PanelAddException('Cannot find a panel identifier')
def _set_applet_iid(self, applet_iid):
if not applet_iid:
raise PanelAddException('No applet specified')
applets = bonobo.activation.query ("has_all (repo_ids, ['IDL:Bonobo/Control:1.0', 'IDL:GNOME/Vertigo/PanelAppletShell:1.0'])")
if not applet_iid in [ a.iid for a in applets ]:
raise PanelAddException('%s is not a valid applet' % applet_iid)
self.applet_iid = applet_iid
def _set_launcher_path(self, launcher_path):
if not launcher_path:
raise PanelAddException('No launcher specified')
if not launcher_path.endswith('.desktop'):
raise PanelAddException('%s does not have a .desktop extension' % launcher_path)
if not os.path.exists(launcher_path):
raise PanelAddException('%s is not an existing launcher' % launcher_path)
self.launcher_path = launcher_path
def _object_id_find_unused(self):
if self.type == PANEL_TYPE_APPLET:
subdirs = self._panel_get_subdirs(PANEL_APPLETS_DIR)
id_list = self._panel_get_list(PANEL_APPLETS_KEY)
prefix = 'applet'
else:
subdirs = self._panel_get_subdirs(PANEL_OBJECTS_DIR)
id_list = self._panel_get_list(PANEL_OBJECTS_KEY)
prefix = 'object'
i = 0
while i < 1000:
id = '%s_%d' % (prefix, i)
if id not in subdirs and id not in id_list:
return id
i += 1
return None
def _launcher_find_unused(self):
basename = os.path.basename(self.launcher_path)
if not os.path.exists(os.path.join(PANEL_LAUNCHER_USER_DIR, basename)):
return basename
dot = basename.rfind('.')
prefix = basename[:dot]
extension = basename[dot:]
i = 0
while i < 1000:
basename = '%s-%d%s' % (prefix, i, extension)
if not os.path.exists(os.path.join(PANEL_LAUNCHER_USER_DIR, basename)):
return basename
i += 1
raise PanelAddException('Copying %s would overwrite existing launchers' % self.launcher_path)
def _associate_schemas(self, engine, schema_dir, dest_dir):
entries = self.client.all_entries(schema_dir)
for entry in entries:
dest_key = os.path.basename(entry.key)
engine.associate_schema(os.path.join(dest_dir, dest_key), entry.key)
subdirs = self.client.all_dirs(schema_dir)
for subdir in subdirs:
dest_subdir = os.path.join(subdir)
self._associate_schemas(engine, subdir, os.path.join(dest_dir, dest_subdir))
def run(self):
self.client = gconf.client_get_default ()
self._toplevel_id_ensure()
id = self._object_id_find_unused()
if not id:
raise PanelAddException('No identifier available for the new object')
if self.type == PANEL_TYPE_APPLET:
dir = os.path.join(PANEL_APPLETS_DIR, id)
elif self.type == PANEL_TYPE_LAUNCHER:
dir = os.path.join(PANEL_OBJECTS_DIR, id)
if self.copy_launcher:
try:
if not os.path.exists(PANEL_LAUNCHER_USER_DIR):
os.makedirs(PANEL_LAUNCHER_USER_DIR)
unused = self._launcher_find_unused()
dest = os.path.join (PANEL_LAUNCHER_USER_DIR, unused)
shutil.copyfile(self.launcher_path, dest)
launcher_location = unused
except (OSError, IOError), e:
raise PanelAddException('Cannot copy launcher: %s' % e)
else:
launcher_location = 'file://' + urllib.pathname2url(os.path.realpath(self.launcher_path))
else:
raise PanelAddException('Unknown panel object type %d' % self.type)
engine = gconf.engine_get_default()
self._associate_schemas(engine, PANEL_SCHEMAS_OBJECTS_DIR, dir)
self.client.set_string(os.path.join(dir, 'toplevel_id'), self.toplevel)
self.client.set_int(os.path.join(dir, 'position'), self.position)
self.client.set_bool(os.path.join(dir, 'panel_right_stick'), self.right_stick)
if self.type == PANEL_TYPE_APPLET:
self.client.set_string(os.path.join(dir, 'object_type'), 'bonobo-applet')
self.client.set_string(os.path.join(dir, 'bonobo_iid'), self.applet_iid)
id_list = self._panel_get_list(PANEL_APPLETS_KEY)
id_list.append(id)
self.client.set_list(PANEL_APPLETS_KEY, gconf.VALUE_STRING, id_list)
elif self.type == PANEL_TYPE_LAUNCHER:
self.client.set_string(os.path.join(dir, 'object_type'), 'launcher-object')
self.client.set_string(os.path.join(dir, 'launcher_location'), launcher_location)
id_list = self._panel_get_list(PANEL_OBJECTS_KEY)
id_list.append(id)
self.client.set_list(PANEL_OBJECTS_KEY, gconf.VALUE_STRING, id_list)
else:
raise PanelAddException('Unknown panel object type %d' % self.type)
def main(args):
parser = optparse.OptionParser()
parser.add_option('--applet', dest='applet',
help='Applet to add')
parser.add_option('--copy-launcher', dest='copy_launcher',
action='store_true', default=False,
help='Copy the launcher to the user directory')
parser.add_option('--launcher', dest='launcher',
help='Launcher to add')
parser.add_option('--panel', dest='toplevel',
help='Identifier of the panel where to add the applet')
parser.add_option('--position', dest='position',
help='Position on the panel where to add the applet')
parser.add_option('--right-stick', dest='right_stick',
action='store_true', default=False,
help='Make the applet right-aligned on the panel')
(options, args) = parser.parse_args()
if not options.applet and not options.launcher:
print parser.format_help()
return 1
if options.applet and options.launcher:
raise PanelAddException('Cannot add an applet and a launcher at the same time')
if options.position:
try:
position = int(options.position)
except ValueError:
raise PanelAddException('%s is not an integer, required for position' % options.position)
else:
position = -1
adder = PanelAdder(options.toplevel, position, options.right_stick, options.applet, options.launcher, options.copy_launcher)
adder.run()
if __name__ == '__main__':
try:
main(sys.argv)
except PanelAddException, e:
print >> sys.stderr, e
sys.exit(1)
except KeyboardInterrupt:
pass