Package dbus :: Module gobject_service
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Source Code for Module dbus.gobject_service

 1  """Support code for implementing D-Bus services via GObjects.""" 
 2   
 3  # Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/> 
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24   
25  import gobject 
26  import dbus.service 
27   
28 -class ExportedGObjectType(gobject.GObjectMeta, dbus.service.InterfaceType):
29 """A metaclass which inherits from both GObjectMeta and 30 `dbus.service.InterfaceType`. Used as the metaclass for `ExportedGObject`. 31 """
32 - def __init__(cls, name, bases, dct):
33 gobject.GObjectMeta.__init__(cls, name, bases, dct) 34 dbus.service.InterfaceType.__init__(cls, name, bases, dct)
35
36 -class ExportedGObject(gobject.GObject, dbus.service.Object):
37 """A GObject which is exported on the D-Bus. 38 39 Because GObject and `dbus.service.Object` both have custom metaclasses, 40 the naive approach using simple multiple inheritance won't work. This 41 class has `ExportedGObjectType` as its metaclass, which is sufficient 42 to make it work correctly. 43 """ 44 __metaclass__ = ExportedGObjectType 45
46 - def __init__(self, conn=None, object_path=None, **kwargs):
47 """Initialize an exported GObject. 48 49 :Parameters: 50 `conn` : dbus.connection.Connection 51 The D-Bus connection or bus 52 `object_path` : str 53 The object path at which to register this object. 54 :Keywords: 55 `bus_name` : dbus.service.BusName 56 A bus name to be held on behalf of this object, or None. 57 `gobject_properties` : dict 58 GObject properties to be set on the constructed object. 59 60 Any unrecognised keyword arguments will also be interpreted 61 as GObject properties. 62 """ 63 bus_name = kwargs.pop('bus_name', None) 64 gobject_properties = kwargs.pop('gobject_properties', None) 65 66 if gobject_properties is not None: 67 kwargs.update(gobject_properties) 68 gobject.GObject.__init__(self, **kwargs) 69 dbus.service.Object.__init__(self, conn=conn, 70 object_path=object_path, 71 bus_name=bus_name)
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