Edit File: gi_service.py
"""Support code for implementing D-Bus services via PyGI.""" # 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. __all__ = ['ExportedGObject'] from gi.repository import GObject import dbus.service # The odd syntax used here is required so that the code is compatible with # both Python 2 and Python 3. It essentially creates a new class called # ExportedGObject with a metaclass of ExportGObjectType and an __init__() # function. # # 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. class ExportedGObjectType(GObject.GObject.__class__, 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.GObject.__class__.__init__(cls, name, bases, dct) dbus.service.InterfaceType.__init__(cls, name, bases, dct) def ExportedGObject__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) ExportedGObject__doc__ = 'A GObject which is exported on the D-Bus.' ExportedGObject = ExportedGObjectType( 'ExportedGObject', (GObject.GObject, dbus.service.Object), {'__init__': ExportedGObject__init__, '__doc__': ExportedGObject__doc__, })
Back to File Manager