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- """Support code for implementing D-Bus services via GObjects."""
-
- # Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
- #
- # Permission is hereby granted, free of charge, to any person
- # obtaining a copy of this software and associated documentation
- # files (the "Software"), to deal in the Software without
- # restriction, including without limitation the rights to use, copy,
- # modify, merge, publish, distribute, sublicense, and/or sell copies
- # of the Software, and to permit persons to whom the Software is
- # furnished to do so, subject to the following conditions:
- #
- # The above copyright notice and this permission notice shall be
- # included in all copies or substantial portions of the Software.
- #
- # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- # DEALINGS IN THE SOFTWARE.
-
- import gobject
- import dbus.service
-
- class ExportedGObjectType(gobject.GObjectMeta, dbus.service.InterfaceType):
- """A metaclass which inherits from both GObjectMeta and
- `dbus.service.InterfaceType`. Used as the metaclass for `ExportedGObject`.
- """
- def __init__(cls, name, bases, dct):
- gobject.GObjectMeta.__init__(cls, name, bases, dct)
- dbus.service.InterfaceType.__init__(cls, name, bases, dct)
-
- class ExportedGObject(gobject.GObject, dbus.service.Object):
- """A GObject which is exported on the D-Bus.
-
- Because GObject and `dbus.service.Object` both have custom metaclasses,
- the naive approach using simple multiple inheritance won't work. This
- class has `ExportedGObjectType` as its metaclass, which is sufficient
- to make it work correctly.
- """
- __metaclass__ = ExportedGObjectType
-
- def __init__(self, conn=None, object_path=None, **kwargs):
- """Initialize an exported GObject.
-
- :Parameters:
- `conn` : dbus.connection.Connection
- The D-Bus connection or bus
- `object_path` : str
- The object path at which to register this object.
- :Keywords:
- `bus_name` : dbus.service.BusName
- A bus name to be held on behalf of this object, or None.
- `gobject_properties` : dict
- GObject properties to be set on the constructed object.
-
- Any unrecognised keyword arguments will also be interpreted
- as GObject properties.
- """
- bus_name = kwargs.pop('bus_name', None)
- gobject_properties = kwargs.pop('gobject_properties', None)
-
- if gobject_properties is not None:
- kwargs.update(gobject_properties)
- gobject.GObject.__init__(self, **kwargs)
- dbus.service.Object.__init__(self, conn=conn,
- object_path=object_path,
- bus_name=bus_name)
-