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comparison libervia/frontends/tools/host_listener.py @ 4074:26b7ed2817da

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refactoring: rename `sat_frontends` to `libervia.frontends`
author Goffi <goffi@goffi.org>
date Fri, 02 Jun 2023 14:12:38 +0200
parents sat_frontends/tools/host_listener.py@524856bd7b19
children
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4073:7c5654c54fed 4074:26b7ed2817da
1 #!/usr/bin/env python3
2
3
4 # SAT: a jabber client
5 # Copyright (C) 2009-2021 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
26 def addListener(cb):
27 """Add a listener which will be called when host is ready
28
29 @param cb: callback which will be called when host is ready with host as only argument
30 """
31 listeners.append(cb)
32
33
34 def call_listeners(host):
35 """Must be called by frontend when host is ready.
36
37 The call will launch all the callbacks, then remove the listeners list.
38 @param host(QuickApp): the instancied QuickApp subclass
39 """
40 global listeners
41 while True:
42 try:
43 cb = listeners.pop(0)
44 cb(host)
45 except IndexError:
46 break
47 del listeners