first add files

1 files changed, 87 insertions, 0 deletions

diff --git a/lib/dbus/gi_service.py b/lib/dbus/gi_service.py
new file mode 100644
index 0000000..f68b088
--- /dev/null
+++ b/lib/dbus/gi_service.py
@@ -0,0 +1,87 @@
+"""Support code for implementing D-Bus services via PyGI."""
+
+# Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
+#
+# SPDX-License-Identifier: MIT
+#
+# 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 D-Bus.
+'''
+
+ExportedGObject = ExportedGObjectType(
+    'ExportedGObject',
+    (GObject.GObject, dbus.service.Object),
+    {'__init__': ExportedGObject__init__,
+     '__doc__': ExportedGObject__doc__,
+     })