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140 lines
5.1 KiB
Python
140 lines
5.1 KiB
Python
# Copyright (C) 2006, Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""D-bus service providing access to the shell's functionality"""
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import dbus
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from sugar.activity import ActivityRegistry
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from sugar.activity import ActivityInfo
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from model import bundleregistry
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_DBUS_SERVICE = "org.laptop.Shell"
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_DBUS_ACTIVITY_REGISTRY_IFACE = "org.laptop.Shell.ActivityRegistry"
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_DBUS_OWNER_IFACE = "org.laptop.Shell.Owner"
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_DBUS_PATH = "/org/laptop/Shell"
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class ShellService(dbus.service.Object):
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"""Provides d-bus service to script the shell's operations
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Uses a shell_model object to observe events such as changes to:
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* nickname
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* colour
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* icon
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* currently active activity
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and pass the event off to the methods in the dbus signature.
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Key method here at the moment is add_bundle, which is used to
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do a run-time registration of a bundle using it's application path.
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XXX At the moment the d-bus service methods do not appear to do
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anything other than add_bundle
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"""
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def __init__(self, shell_model):
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self._shell_model = shell_model
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self._owner = self._shell_model.get_owner()
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self._owner.connect('nick-changed', self._owner_nick_changed_cb)
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self._owner.connect('icon-changed', self._owner_icon_changed_cb)
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self._owner.connect('color-changed', self._owner_color_changed_cb)
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self._home_model = self._shell_model.get_home()
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self._home_model.connect('active-activity-changed',
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self._cur_activity_changed_cb)
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bus = dbus.SessionBus()
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bus_name = dbus.service.BusName(_DBUS_SERVICE, bus=bus)
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dbus.service.Object.__init__(self, bus_name, _DBUS_PATH)
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@dbus.service.method(_DBUS_ACTIVITY_REGISTRY_IFACE,
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in_signature="s", out_signature="b")
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def AddBundle(self, bundle_path):
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"""Register the activity bundle with the global registry
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bundle_path -- path to the activity bundle's root directory,
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that is, the directory with activity/activity.info as a
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child of the directory.
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The bundleregistry.BundleRegistry is responsible for setting
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up a set of d-bus service mappings for each available activity.
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"""
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registry = bundleregistry.get_registry()
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return registry.add_bundle(bundle_path)
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@dbus.service.method(_DBUS_ACTIVITY_REGISTRY_IFACE,
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in_signature="s", out_signature="aa{sv}")
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def GetActivitiesForName(self, name):
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result = []
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key = name.lower()
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for bundle in bundleregistry.get_registry():
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name = bundle.get_name().lower()
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service_name = bundle.get_service_name().lower()
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if name.find(key) != -1 or service_name.find(key) != -1:
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info = self._bundle_to_activity_info(bundle)
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result.append(info.to_dict())
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return result
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@dbus.service.method(_DBUS_ACTIVITY_REGISTRY_IFACE,
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in_signature="s", out_signature="aa{sv}")
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def GetActivitiesForType(self, mime_type):
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result = []
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for bundle in bundleregistry.get_registry():
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if mime_type in bundle.get_mime_types():
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info = self._bundle_to_activity_info(bundle)
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result.append(info.to_dict())
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return result
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@dbus.service.signal(_DBUS_OWNER_IFACE, signature="s")
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def ColorChanged(self, color):
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pass
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def _owner_color_changed_cb(self, new_color):
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self.ColorChanged(new_color.to_string())
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@dbus.service.signal(_DBUS_OWNER_IFACE, signature="s")
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def NickChanged(self, nick):
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pass
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def _owner_nick_changed_cb(self, new_nick):
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self.NickChanged(new_nick)
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@dbus.service.signal(_DBUS_OWNER_IFACE, signature="ay")
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def IconChanged(self, icon_data):
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pass
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def _owner_icon_changed_cb(self, new_icon):
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self.IconChanged(dbus.ByteArray(new_icon))
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@dbus.service.signal(_DBUS_OWNER_IFACE, signature="s")
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def CurrentActivityChanged(self, activity_id):
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pass
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def _cur_activity_changed_cb(self, owner, new_activity):
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new_id = ""
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if new_activity:
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new_id = new_activity.get_activity_id()
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self.CurrentActivityChanged(new_id)
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def _bundle_to_activity_info(self, bundle):
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return ActivityInfo(bundle.get_name(), bundle.get_icon(),
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bundle.get_service_name(), bundle.get_path())
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