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annotate frontends/src/quick_frontend/quick_menus.py @ 2285:688ff67d6ae9

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jp (invitation/create): typo
author Goffi <goffi@goffi.org>
date Thu, 29 Jun 2017 20:37:06 +0200
parents 58f0c96d60e5
children 8b37a62336c3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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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 # helper class for making a SAT frontend
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d17772b0fe22 copyright update
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5 # Copyright (C) 2009-2016 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 try:
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21 # FIXME: to be removed when an acceptable solution is here
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22 unicode('') # XXX: unicode doesn't exist in pyjamas
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23 except (TypeError, AttributeError): # Error raised is not the same depending on pyjsbuild options
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24 unicode = str
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25
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26 from sat.core.log import getLogger
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27 from sat.core.i18n import _, languageSwitch
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28 log = getLogger(__name__)
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29 from sat_frontends.quick_frontend.constants import Const as C
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30 from collections import OrderedDict
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31
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32
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33 ## items ##
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34
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35 class MenuBase(object):
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36 ACTIVE=True
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37
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38 def __init__(self, name, extra=None):
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39 """
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40 @param name(unicode): canonical name of the item
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41 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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42 """
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43 self._name = name
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44 self.setExtra(extra)
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45
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46 @property
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47 def canonical(self):
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48 """Return the canonical name of the container, used to identify it"""
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49 return self._name
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50
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51 @property
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52 def name(self):
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53 """Return the name of the container, can be translated"""
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54 return self._name
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55
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56 def setExtra(self, extra):
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57 if extra is None:
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58 extra = {}
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59 self.icon = extra.get("icon")
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60
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61
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62 class MenuItem(MenuBase):
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63 """A callable item in the menu"""
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64 CALLABLE=False
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65
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66 def __init__(self, name, name_i18n, extra=None, type_=None):
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67 """
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68 @param name(unicode): canonical name of the item
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69 @param name_i18n(unicode): translated name of the item
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70 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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71 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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72 """
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73 MenuBase.__init__(self, name, extra)
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74 self._name_i18n = name_i18n if name_i18n else name
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75 self.type = type_
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76
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77 @property
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78 def name(self):
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79 return self._name_i18n
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80
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81 def collectData(self, caller):
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82 """Get data according to data_collector
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83
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84 @param caller: Menu caller
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85 """
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86 assert self.type is not None # if data collector are used, type must be set
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87 data_collector = QuickMenusManager.getDataCollector(self.type)
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88
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89 if data_collector is None:
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90 return {}
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91
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92 elif callable(data_collector):
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93 return data_collector(caller, self.name)
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94
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95 else:
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96 if caller is None:
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97 log.error(u"Caller can't be None with a dictionary as data_collector")
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98 return {}
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99 data = {}
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100 for data_key, caller_attr in data_collector.iteritems():
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101 data[data_key] = unicode(getattr(caller, caller_attr))
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102 return data
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103
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104
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105 def call(self, caller, profile=C.PROF_KEY_NONE):
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106 """Execute the menu item
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107
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108 @param caller: instance linked to the menu
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109 @param profile: %(doc_profile)s
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110 """
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111 raise NotImplementedError
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112
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113
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114 class MenuItemDistant(MenuItem):
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115 """A MenuItem with a distant callback"""
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116 CALLABLE=True
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117
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118 def __init__(self, host, type_, name, name_i18n, id_, extra=None):
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119 """
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120 @param host: %(doc_host)s
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121 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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122 @param name(unicode): canonical name of the item
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123 @param name_i18n(unicode): translated name of the item
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124 @param id_(unicode): id of the distant callback
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125 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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126 """
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127 MenuItem.__init__(self, name, name_i18n, extra, type_)
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128 self.host = host
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129 self.id = id_
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130
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131 def call(self, caller, profile=C.PROF_KEY_NONE):
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132 data = self.collectData(caller)
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133 log.debug("data collected: %s" % data)
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134 self.host.launchAction(self.id, data, profile=profile)
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135
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136
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137 class MenuItemLocal(MenuItem):
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138 """A MenuItem with a local callback"""
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139 CALLABLE=True
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140
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141 def __init__(self, type_, name, name_i18n, callback, extra=None):
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142 """
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143 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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144 @param name(unicode): canonical name of the item
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145 @param name_i18n(unicode): translated name of the item
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146 @param callback(callable): local callback.
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147 Will be called with no argument if data_collector is None
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148 and with caller, profile, and requested data otherwise
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149 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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150 """
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151 MenuItem.__init__(self, name, name_i18n, extra, type_)
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152 self.callback = callback
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153
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154 def call(self, caller, profile=C.PROF_KEY_NONE):
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155 data_collector = QuickMenusManager.getDataCollector(self.type)
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156 if data_collector is None:
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157 # FIXME: would not it be better if caller and profile where used as arguments?
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158 self.callback()
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159 else:
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160 self.callback(caller, self.collectData(caller), profile)
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161
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162
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163 class MenuHook(MenuItemLocal):
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164 """A MenuItem which replace an expected item from backend"""
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165 pass
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166
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167
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168 class MenuPlaceHolder(MenuItem):
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169 """A non existant menu which is used to keep a position"""
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170 ACTIVE=False
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171
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172 def __init__(self, name):
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173 MenuItem.__init__(self, name, name)
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174
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175
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176 class MenuSeparator(MenuItem):
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177 """A separation between items/categories"""
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178 SEP_IDX=0
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179
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180 def __init__(self):
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181 MenuSeparator.SEP_IDX +=1
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182 name = u"___separator_{}".format(MenuSeparator.SEP_IDX)
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183 MenuItem.__init__(self, name, name)
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184
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185
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186 ## containers ##
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187
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188
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189 class MenuContainer(MenuBase):
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190
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191 def __init__(self, name, extra=None):
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192 MenuBase.__init__(self, name, extra)
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193 self._items = OrderedDict()
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194
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195 def __len__(self):
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196 return len(self._items)
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197
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198 def __contains__(self, item):
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199 return item.canonical in self._items
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200
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201 def __iter__(self):
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202 return self._items.itervalues()
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203
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204 def __getitem__(self, item):
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205 try:
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206 return self._items[item.canonical]
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207 except KeyError:
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208 raise KeyError(item)
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209
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210 def getOrCreate(self, item):
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211 log.debug(u"MenuContainer getOrCreate: item=%s name=%s\nlist=%s" % (item, item.canonical, self._items.keys()))
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212 try:
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213 return self[item]
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214 except KeyError:
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215 self.append(item)
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216 return item
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217
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218 def getActiveMenus(self):
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219 """Return an iterator on active children"""
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220 for child in self._items.itervalues():
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221 if child.ACTIVE:
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222 yield child
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223
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224 def append(self, item):
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225 """add an item at the end of current ones
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226
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227 @param item: instance of MenuBase (must be unique in container)
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228 """
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229 assert isinstance(item, MenuItem) or isinstance(item, MenuContainer)
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230 assert item.canonical not in self._items
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231 self._items[item.canonical] = item
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232
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233 def replace(self, item):
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234 """add an item at the end of current ones or replace an existing one"""
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235 self._items[item.canonical] = item
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236
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237
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238 class MenuCategory(MenuContainer):
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239 """A category which can hold other menus or categories"""
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240
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241 def __init__(self, name, name_i18n=None, extra=None):
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242 """
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243 @param name(unicode): canonical name
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244 @param name_i18n(unicode, None): translated name
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245 @param icon(unicode, None): same as in MenuBase.__init__
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246 """
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247 log.debug("creating menuCategory %s with extra %s" % (name, extra))
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248 MenuContainer.__init__(self, name, extra)
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249 self._name_i18n = name_i18n or name
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250
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251 @property
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252 def name(self):
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253 return self._name_i18n
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254
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255
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256 class MenuType(MenuContainer):
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257 """A type which can hold other menus or categories"""
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258 pass
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259
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260
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261 ## manager ##
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262
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263
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264 class QuickMenusManager(object):
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265 """Manage all the menus"""
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266 _data_collectors={C.MENU_GLOBAL: None} # No data is associated with C.MENU_GLOBAL items
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267
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268 def __init__(self, host, menus=None, language=None):
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269 """
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270 @param host: %(doc_host)s
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271 @param menus(iterable): menus as in [addMenus]
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272 @param language: same as in [i18n.languageSwitch]
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273 """
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274 self.host = host
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275 MenuBase.host = host
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276 self.language = language
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277 self.menus = {}
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278 if menus is not None:
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279 self.addMenus(menus)
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280
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281 def _getPathI18n(self, path):
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282 """Return translated version of path"""
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283 languageSwitch(self.language)
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284 path_i18n = [_(elt) for elt in path]
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285 languageSwitch()
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286 return path_i18n
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287
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288 def _createCategories(self, type_, path, path_i18n=None, top_extra=None):
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289 """Create catogories of the path
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290
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291 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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292 @param path(list[unicode]): same as in [sat.core.sat_main.SAT.importMenu]
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293 @param path_i18n(list[unicode], None): translated menu path (same lenght as path) or None to get deferred translation of path
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294 @param top_extra: extra data to use on the first element of path only. If the first element already exists and is reused, top_extra will be ignored (you'll have to manually change it if you really want to).
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295 @return (MenuContainer): last category created, or MenuType if path is empty
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296 """
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297 if path_i18n is None:
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298 path_i18n = self._getPathI18n(path)
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299 assert len(path) == len(path_i18n)
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300 menu_container = self.menus.setdefault(type_, MenuType(type_))
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301
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302 for idx, category in enumerate(path):
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303 menu_category = MenuCategory(category, path_i18n[idx], extra=top_extra)
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304 menu_container = menu_container.getOrCreate(menu_category)
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305 top_extra = None
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306
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307 return menu_container
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308
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309 @staticmethod
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310 def addDataCollector(type_, data_collector):
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311 """Associate a data collector to a menu type
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312
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313 A data collector is a method or a map which allow to collect context data to construct the dictionnary which will be sent to the bridge method managing the menu item.
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314 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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315 @param data_collector(dict[unicode,unicode], callable, None): can be:
2070
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316 - a dict which map data name to local name.
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317 The attribute named after the dict values will be getted from caller, and put in data.
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318 e.g.: if data_collector={'room_jid':'target'}, then the "room_jid" data will be the value of the "target" attribute of the caller.
1364
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319 - a callable which must return the data dictionnary. callable will have caller and item name as argument
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320 - None: an empty dict will be used
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321 """
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322 QuickMenusManager._data_collectors[type_] = data_collector
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323
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324 @staticmethod
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325 def getDataCollector(type_):
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326 """Get data_collector associated to type_
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327
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328 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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329 @return (callable, dict, None): data_collector
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330 """
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331 try:
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332 return QuickMenusManager._data_collectors[type_]
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333 except KeyError:
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334 log.error(u"No data collector registered for {}".format(type_))
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335 return None
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336
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337 def addMenuItem(self, type_, path, item, path_i18n=None, top_extra=None):
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338 """Add a MenuItemBase instance
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339
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340 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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341 @param path(list[unicode]): same as in [sat.core.sat_main.SAT.importMenu], stop at the last parent category
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342 @param item(MenuItem): a instancied item
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343 @param path_i18n(list[unicode],None): translated menu path (same lenght as path) or None to use deferred translation of path
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344 @param top_extra: same as in [_createCategories]
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345 """
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346 if path_i18n is None:
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347 path_i18n = self._getPathI18n(path)
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348 assert path and len(path) == len(path_i18n)
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349
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350 menu_container = self._createCategories(type_, path, path_i18n, top_extra)
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351
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352 if item in menu_container:
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353 if isinstance(item, MenuHook):
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354 menu_container.replace(item)
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355 else:
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356 container_item = menu_container[item]
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357 if isinstance(container_item, MenuPlaceHolder):
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358 menu_container.replace(item)
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359 elif isinstance(container_item, MenuHook):
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360 # MenuHook must not be replaced
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361 log.debug(u"ignoring menu at path [{}] because a hook is already in place".format(path))
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362 else:
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363 log.error(u"Conflicting menus at path [{}]".format(path))
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364 else:
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365 log.debug(u"Adding menu [{type_}] {path}".format(type_=type_, path=path))
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366 menu_container.append(item)
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367 self.host.callListeners('menu', type_, path, path_i18n, item)
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368
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369 def addMenu(self, type_, path, path_i18n=None, extra=None, top_extra=None, id_=None, callback=None):
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370 """Add a menu item
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371
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372 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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373 @param path(list[unicode]): same as in [sat.core.sat_main.SAT.importMenu]
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374 @param path_i18n(list[unicode], None): translated menu path (same lenght as path), or None to get deferred translation
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375 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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376 @param top_extra: same as in [_createCategories]
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377 @param id_(unicode): callback id (mutually exclusive with callback)
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378 @param callback(callable): local callback (mutually exclusive with id_)
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379 """
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380 if path_i18n is None:
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381 path_i18n = self._getPathI18n(path)
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382 assert bool(id_) ^ bool(callback) # we must have id_ xor callback defined
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383 if id_:
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384 menu_item = MenuItemDistant(self.host, type_, path[-1], path_i18n[-1], id_=id_, extra=extra)
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385 else:
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386 menu_item = MenuItemLocal(type_, path[-1], path_i18n[-1], callback=callback, extra=extra)
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387 self.addMenuItem(type_, path[:-1], menu_item, path_i18n[:-1], top_extra)
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388
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389 def addMenus(self, menus, top_extra=None):
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390 """Add several menus at once
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391
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392 @param menus(iterable): iterable with:
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393 id_(unicode,callable): id of distant callback or local callback
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394 type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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395 path(iterable[unicode]): same as in [sat.core.sat_main.SAT.importMenu]
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396 path_i18n(iterable[unicode]): translated menu path (same lenght as path)
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397 extra(dict[unicode,unicode]): dictionary of extra data (used on the leaf menu), can be:
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398 - "icon": icon name
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399 @param top_extra: same as in [_createCategories]
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400 """
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401 # TODO: manage icons
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402 for id_, type_, path, path_i18n, extra in menus:
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403 if callable(id_):
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diff changeset
404 self.addMenu(type_, path, path_i18n, callback=id_, extra=extra, top_extra=top_extra)
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405 else:
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406 self.addMenu(type_, path, path_i18n, id_=id_, extra=extra, top_extra=top_extra)
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407
1366
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408 def addMenuHook(self, type_, path, path_i18n=None, extra=None, top_extra=None, callback=None):
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409 """Helper method to add a menu hook
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diff changeset
410
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411 Menu hooks are local menus which override menu given by backend
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412 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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413 @param path(list[unicode]): same as in [sat.core.sat_main.SAT.importMenu]
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414 @param path_i18n(list[unicode], None): translated menu path (same lenght as path), or None to get deferred translation
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415 @param extra(dict[unicode, unicode], None): same as in [addMenus]
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416 @param top_extra: same as in [_createCategories]
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417 @param callback(callable): local callback (mutually exclusive with id_)
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418 """
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419 if path_i18n is None:
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420 path_i18n = self._getPathI18n(path)
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421 menu_item = MenuHook(type_, path[-1], path_i18n[-1], callback=callback, extra=extra)
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422 self.addMenuItem(type_, path[:-1], menu_item, path_i18n[:-1], top_extra)
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diff changeset
423 log.info(u"Menu hook set on {path} ({type_})".format(path=path, type_=type_))
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diff changeset
424
1364
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425 def addCategory(self, type_, path, path_i18n=None, extra=None, top_extra=None):
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426 """Create a category with all parents, and set extra on the last one
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diff changeset
427
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diff changeset
428 @param type_(unicode): same as in [sat.core.sat_main.SAT.importMenu]
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429 @param path(list[unicode]): same as in [sat.core.sat_main.SAT.importMenu]
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430 @param path_i18n(list[unicode], None): translated menu path (same lenght as path), or None to get deferred translation of path
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431 @param extra(dict[unicode, unicode], None): same as in [addMenus] (added on the leaf category only)
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432 @param top_extra: same as in [_createCategories]
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diff changeset
433 @return (MenuCategory): last category add
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diff changeset
434 """
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diff changeset
435 if path_i18n is None:
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diff changeset
436 path_i18n = self._getPathI18n(path)
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diff changeset
437 last_container = self._createCategories(type_, path, path_i18n, top_extra=top_extra)
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diff changeset
438 last_container.setExtra(extra)
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diff changeset
439 return last_container
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diff changeset
440
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Goffi <goffi@goffi.org>
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diff changeset
441 def getMainContainer(self, type_):
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442 """Get a main MenuType container
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diff changeset
443
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Goffi <goffi@goffi.org>
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diff changeset
444 @param type_: a C.MENU_* constant
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445 @return(MenuContainer): the main container
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446 """
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447 menu_container = self.menus.setdefault(type_, MenuType(type_))
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448 return menu_container