1# -*- coding: utf-8 -*- 

2# This file is part of Xpra. 

3# Copyright (C) 2010-2020 Antoine Martin <antoine@xpra.org> 

4# Xpra is released under the terms of the GNU GPL v2, or, at your option, any 

5# later version. See the file COPYING for details. 

6 

7from xpra.server.source.stub_source_mixin import StubSourceMixin 

8from xpra.util import typedict 

9 

10 

11""" 

12Expose the ClientConnection using a dbus service 

13""" 

14class DBUS_Mixin(StubSourceMixin): 

15 

16 @classmethod 

17 def is_needed(cls, caps : typedict) -> bool: 

18 #the DBUSSource we create is only useful if the client 

19 #supports one of the mixins it exposes: 

20 return caps.boolget("windows", False) or caps.boolget("sound", False) 

21 

22 def __init__(self): 

23 self.dbus_control = False 

24 self.dbus_server = None 

25 

26 def init_from(self, _protocol, server): 

27 self.dbus_control = server.dbus_control 

28 

29 def init_state(self): 

30 if self.dbus_control: 

31 from xpra.server.dbus.dbus_common import dbus_exception_wrap 

32 def make_dbus_server(): 

33 import os 

34 from xpra.server.dbus.dbus_source import DBUS_Source 

35 return DBUS_Source(self, os.environ.get("DISPLAY", "").lstrip(":")) 

36 self.dbus_server = dbus_exception_wrap(make_dbus_server, "setting up client dbus instance") 

37 

38 def cleanup(self): 

39 ds = self.dbus_server 

40 if ds: 

41 self.dbus_server = None 

42 self.idle_add(ds.cleanup)