Mercurial > libervia-backend
comparison frontends/src/tools/host_listener.py @ 1362:99d596613661 frontends_multi_profiles
frontends: added a host_listener module which manage a listener launched when host is ready, useful to instantiate things on host in optional modules (e.g. menus).
author | Goffi <goffi@goffi.org> |
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date | Tue, 17 Mar 2015 19:30:43 +0100 |
parents | |
children | 069ad98b360d |
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1361:d3e9848b9574 | 1362:99d596613661 |
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1 #!/usr/bin/python | |
2 # -*- coding: utf-8 -*- | |
3 | |
4 # SAT: a jabber client | |
5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org) | |
6 | |
7 # This program is free software: you can redistribute it and/or modify | |
8 # it under the terms of the GNU Affero General Public License as published by | |
9 # the Free Software Foundation, either version 3 of the License, or | |
10 # (at your option) any later version. | |
11 | |
12 # This program is distributed in the hope that it will be useful, | |
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 # GNU Affero General Public License for more details. | |
16 | |
17 # You should have received a copy of the GNU Affero General Public License | |
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | |
20 """This module is only used launch callbacks when host is ready, used for early initialisation stuffs""" | |
21 | |
22 | |
23 listeners = [] | |
24 | |
25 def addListener(cb): | |
26 """Add a listener which will be called when host is ready | |
27 | |
28 @param cb: callback which will be called when host is ready with host as only argument | |
29 """ | |
30 listeners.append(cb) | |
31 | |
32 def callListeners(host): | |
33 """Must be called by frontend when host is ready. | |
34 | |
35 The call will launch all the callbacks, then remove the listeners list. | |
36 @param host(QuickApp): the instancied QuickApp subclass | |
37 """ | |
38 global listeners | |
39 while True: | |
40 try: | |
41 cb = listeners.pop(0) | |
42 cb(host) | |
43 except IndexError: | |
44 break | |
45 del listeners |