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Diffstat (limited to 'src/shellservice.py')
| -rw-r--r-- | src/shellservice.py | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/shellservice.py b/src/shellservice.py new file mode 100644 index 0000000..458f941 --- /dev/null +++ b/src/shellservice.py @@ -0,0 +1,130 @@ +# Copyright (C) 2006-2007 Red Hat, Inc. +# +# 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 St, Fifth Floor, Boston, MA 02110-1301 USA + +"""D-bus service providing access to the shell's functionality""" +import dbus +import os + +_DBUS_SERVICE = "org.laptop.Shell" +_DBUS_SHELL_IFACE = "org.laptop.Shell" +_DBUS_OWNER_IFACE = "org.laptop.Shell.Owner" +_DBUS_PATH = "/org/laptop/Shell" + +_DBUS_RAINBOW_IFACE = "org.laptop.security.Rainbow" + +class ShellService(dbus.service.Object): + """Provides d-bus service to script the shell's operations + + Uses a shell_model object to observe events such as changes to: + + * nickname + * colour + * icon + * currently active activity + + and pass the event off to the methods in the dbus signature. + + Key method here at the moment is add_bundle, which is used to + do a run-time registration of a bundle using it's application path. + + XXX At the moment the d-bus service methods do not appear to do + anything other than add_bundle + """ + + _rainbow = None + + def __init__(self, shell): + self._shell = shell + self._shell_model = shell.get_model() + + self._owner = self._shell_model.get_owner() + self._owner.connect('nick-changed', self._owner_nick_changed_cb) + self._owner.connect('icon-changed', self._owner_icon_changed_cb) + self._owner.connect('color-changed', self._owner_color_changed_cb) + + self._home_model = self._shell_model.get_home() + self._home_model.connect('active-activity-changed', + self._cur_activity_changed_cb) + + bus = dbus.SessionBus() + bus_name = dbus.service.BusName(_DBUS_SERVICE, bus=bus) + dbus.service.Object.__init__(self, bus_name, _DBUS_PATH) + + @dbus.service.method(_DBUS_SHELL_IFACE, + in_signature="s", out_signature="b") + def ActivateActivity(self, activity_id): + host = self._shell.get_activity(activity_id) + if host: + host.present() + return True + + return False + + @dbus.service.method(_DBUS_SHELL_IFACE, + in_signature="ss", out_signature="") + def NotifyLaunch(self, bundle_id, activity_id): + self._shell.notify_launch(bundle_id, activity_id) + + @dbus.service.method(_DBUS_SHELL_IFACE, + in_signature="s", out_signature="") + def NotifyLaunchFailure(self, activity_id): + self._shell.notify_launch_failure(activity_id) + + @dbus.service.signal(_DBUS_OWNER_IFACE, signature="s") + def ColorChanged(self, color): + pass + + def _owner_color_changed_cb(self, new_color): + self.ColorChanged(new_color.to_string()) + + @dbus.service.signal(_DBUS_OWNER_IFACE, signature="s") + def NickChanged(self, nick): + pass + + def _owner_nick_changed_cb(self, new_nick): + self.NickChanged(new_nick) + + @dbus.service.signal(_DBUS_OWNER_IFACE, signature="ay") + def IconChanged(self, icon_data): + pass + + def _owner_icon_changed_cb(self, new_icon): + self.IconChanged(dbus.ByteArray(new_icon)) + + def _get_rainbow_service(self): + """Lazily initializes an interface to the Rainbow security daemon.""" + if self._rainbow is None: + system_bus = dbus.SystemBus() + object = system_bus.get_object(_DBUS_RAINBOW_IFACE, '/', + follow_name_owner_changes=True) + self._rainbow = dbus.Interface(object, + dbus_interface=_DBUS_RAINBOW_IFACE) + return self._rainbow + + @dbus.service.signal(_DBUS_OWNER_IFACE, signature="s") + def CurrentActivityChanged(self, activity_id): + if os.path.exists('/etc/olpc-security'): + self._get_rainbow_service().ChangeActivity( + activity_id, + dbus_interface=_DBUS_RAINBOW_IFACE) + + def _cur_activity_changed_cb(self, owner, new_activity): + new_id = "" + if new_activity: + new_id = new_activity.get_activity_id() + if new_id: + self.CurrentActivityChanged(new_id) + |