Mercurial > libervia-backend

annotate sat/bridge/bridge_constructor/constructors/pb/pb_frontend_template.py @ 2993:d58dccd9e4b4

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primitivus (contact list): fixed notifications counter for mentions: notifications counter was not properly counting mentions and was not changing colour as expected, this patch fixes this and changed colour to the more readable light red when not focused. fixes 319
author Goffi <goffi@goffi.org>
date Mon, 08 Jul 2019 19:11:29 +0200
parents 003b8b4b56a7
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT communication bridge
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.log import getLogger
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21
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22 log = getLogger(__name__)
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23 from sat.core import exceptions
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24 from twisted.spread import pb
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25 from twisted.internet import reactor
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27
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28 class SignalsHandler(pb.Referenceable):
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29 def __getattr__(self, name):
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30 if name.startswith("remote_"):
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31 log.debug(u"calling an unregistered signal: {name}".format(name=name[7:]))
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32 return lambda *args, **kwargs: None
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33
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34 else:
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35 raise AttributeError(name)
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36
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37 def register_signal(self, name, handler, iface="core"):
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38 log.debug("registering signal {name}".format(name=name))
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39 method_name = "remote_" + name
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40 try:
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41 self.__getattribute__(self, method_name)
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42 except AttributeError:
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43 pass
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44 else:
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45 raise exceptions.InternalError(
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46 u"{name} signal handler has been registered twice".format(
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47 name=method_name
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48 )
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49 )
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50 setattr(self, method_name, handler)
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51
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52
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53 class Bridge(object):
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54 def __init__(self):
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55 self.signals_handler = SignalsHandler()
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56
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57 def __getattr__(self, name):
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58 return lambda *args, **kwargs: self.call(name, args, kwargs)
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59
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60 def remoteCallback(self, result, callback):
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61 """call callback with argument or None
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62
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63 if result is not None not argument is used,
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64 else result is used as argument
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65 @param result: remote call result
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66 @param callback(callable): method to call on result
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67 """
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68 if result is None:
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69 callback()
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70 else:
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71 callback(result)
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72
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73 def call(self, name, args, kwargs):
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74 """call a remote method
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75
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76 @param name(str): name of the bridge method
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77 @param args(list): arguments
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78 may contain callback and errback as last 2 items
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79 @param kwargs(dict): keyword arguments
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80 may contain callback and errback
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81 """
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82 callback = errback = None
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83 if kwargs:
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84 try:
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85 callback = kwargs.pop("callback")
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86 except KeyError:
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87 pass
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88 try:
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89 errback = kwargs.pop("errback")
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90 except KeyError:
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91 pass
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92 elif len(args) >= 2 and callable(args[-1]) and callable(args[-2]):
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93 errback = args.pop()
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94 callback = args.pop()
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95 d = self.root.callRemote(name, *args, **kwargs)
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96 if callback is not None:
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97 d.addCallback(self.remoteCallback, callback)
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98 if errback is not None:
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99 d.addErrback(errback)
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100
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101 def _initBridgeEb(self, failure):
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102 log.error(u"Can't init bridge: {msg}".format(msg=failure))
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103
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104 def _set_root(self, root):
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105 """set remote root object
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106
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107 bridge will then be initialised
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108 """
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109 self.root = root
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110 d = root.callRemote("initBridge", self.signals_handler)
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111 d.addErrback(self._initBridgeEb)
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112 return d
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113
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114 def _generic_errback(self, failure):
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115 log.error(u"bridge failure: {}".format(failure))
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116
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117 def bridgeConnect(self, callback, errback):
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118 factory = pb.PBClientFactory()
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119 reactor.connectTCP("localhost", 8789, factory)
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120 d = factory.getRootObject()
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121 d.addCallback(self._set_root)
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122 d.addCallback(lambda __: callback())
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123 d.addErrback(errback)
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124
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125 def register_signal(self, functionName, handler, iface="core"):
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126 self.signals_handler.register_signal(functionName, handler, iface)
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127
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128
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129 ##METHODS_PART##