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annotate src/browser/collections.py @ 995:f88325b56a6a

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server: dynamic pages first draft: /!\ new dependency: autobahn This patch introduce server part of dynamic pages. Dynamic pages use websockets to establish constant connection with a Libervia page, allowing to receive real time data or update it. The feature is activated by specifying "dynamic = true" in the page. Once activated, page can implement "on_data" method which will be called when data are sent by the page. To send data the other way, the page can use request.sendData. The new "registerSignal" method allows to use an "on_signal" method to be called each time given signal is received, with automatic (and optional) filtering on profile. New renderPartial and renderAndUpdate method allow to append new HTML elements to the dynamic page.
author Goffi <goffi@goffi.org>
date Wed, 03 Jan 2018 01:10:12 +0100
parents 44df078187b9
children
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2014 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 class OrderedDict(object):
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21 """Naive implementation of OrderedDict which is compatible with pyjamas"""
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22
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23 def __init__(self, *args, **kwargs):
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24 self.__internal_dict = {}
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25 self.__keys = [] # this list keep the keys in order
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26 if args:
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27 if len(args)>1:
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28 raise TypeError("OrderedDict expected at most 1 arguments, got {}".format(len(args)))
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29 if isinstance(args[0], (dict, OrderedDict)):
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30 for key, value in args[0].iteritems():
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31 self[key] = value
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32 for key, value in args[0]:
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33 self[key] = value
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34
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35 def __len__(self):
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36 return len(self.__keys)
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37
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38 def __setitem__(self, key, value):
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39 if key not in self.__keys:
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40 self.__keys.append(key)
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41 self.__internal_dict[key] = value
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42
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43 def __getitem__(self, key):
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44 return self.__internal_dict[key]
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45
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46 def __delitem__(self, key):
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47 del self.__internal_dict[key]
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48 self.__keys.remove(key)
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49
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50 def __contains__(self, key):
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51 return key in self.__keys
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52
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53 def clear(self):
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54 self.__internal_dict.clear()
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55 del self.__keys[:]
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56
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57 def copy(self):
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58 return OrderedDict(self)
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59
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60 @classmethod
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61 def fromkeys(cls, seq, value=None):
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62 ret = OrderedDict()
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63 for key in seq:
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64 ret[key] = value
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65 return ret
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66
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67 def get(self, key, default=None):
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68 try:
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69 return self.__internal_dict[key]
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70 except KeyError:
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71 return default
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72
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73 def has_key(self, key):
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74 return key in self.__keys
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75
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76 def keys(self):
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77 return self.__keys[:]
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78
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79 def iterkeys(self):
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80 for key in self.__keys:
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81 yield key
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82
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83 def items(self):
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84 ret = []
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85 for key in self.__keys:
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86 ret.append((key, self.__internal_dict[key]))
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87 return ret
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88
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89 def iteritems(self):
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90 for key in self.__keys:
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91 yield (key, self.__internal_dict[key])
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92
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93 def values(self):
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94 ret = []
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95 for key in self.__keys:
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96 ret.append(self.__internal_dict[key])
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97 return ret
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98
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99 def itervalues(self):
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100 for key in self.__keys:
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101 yield (self.__internal_dict[key])
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102
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103 def popitem(self, last=True):
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104 try:
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105 key = self.__keys.pop(-1 if last else 0)
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106 except IndexError:
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107 raise KeyError('dictionnary is empty')
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108 value = self.__internal_dict.pop(key)
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109 return((key, value))
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110
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111 def setdefault(self, key, default=None):
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112 try:
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113 return self.__internal_dict[key]
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114 except KeyError:
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115 self[key] = default
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116 return default
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117
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118 def update(self, *args, **kwargs):
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119 if len(args) > 1:
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120 raise TypeError('udpate expected at most 1 argument, got {}'.format(len(args)))
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121 if args:
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122 if hasattr(args[0], 'keys'):
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123 for k in args[0]:
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124 self[k] = args[0][k]
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125 else:
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126 for (k, v) in args[0]:
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127 self[k] = v
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128 for k, v in kwargs.items():
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129 self[k] = v
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130
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131 def pop(self, *args):
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132 if not args:
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133 raise TypeError('pop expected at least 1 argument, got 0')
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134 try:
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135 self.__internal_dict.pop(args[0])
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136 except KeyError:
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137 if len(args) == 2:
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138 return args[1]
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139 raise KeyError(args[0])
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140 self.__keys.remove(args[0])
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141
661
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souliane <souliane@mailoo.org>
parents: 589
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142 def viewitems(self):
589
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143 raise NotImplementedError
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144
661
2664fe93ceb3 browser_side: implements collections.OrderedDict.__contains__ to fix an error while doing "presence in C.PRESENCE"
souliane <souliane@mailoo.org>
parents: 589
diff changeset
145 def viewkeys(self):
589
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146 raise NotImplementedError
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147
661
2664fe93ceb3 browser_side: implements collections.OrderedDict.__contains__ to fix an error while doing "presence in C.PRESENCE"
souliane <souliane@mailoo.org>
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diff changeset
148 def viewvalues(self):
589
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149 raise NotImplementedError