annotate src/tools/xml_tools.py @ 606:21ddafccf32d

installation: added forgotten imaging dependency
author Goffi <goffi@goffi.org>
date Sat, 23 Feb 2013 17:50:58 +0100
parents 56531f9e9ac7
children 84a6e83157c2
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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 """
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5 SAT: a jabber client
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6 Copyright (C) 2009, 2010, 2011, 2012, 2013 Jérôme Poisson (goffi@goffi.org)
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7
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8 This program is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU Affero General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU Affero General Public License for more details.
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17
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18 You should have received a copy of the GNU Affero General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """
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21
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22 from logging import debug, info, error
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23 from xml.dom import minidom
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24 from wokkel import data_form
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25 from twisted.words.xish import domish
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27 """This library help manage XML used in SàT (parameters, registration, etc) """
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30 def dataForm2xml(form):
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31 """Take a data form (xep-0004, Wokkel's implementation) and convert it to a SàT xml"""
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33 form_ui = XMLUI("form", "vertical")
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35 if form.instructions:
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36 form_ui.addText('\n'.join(form.instructions), 'instructions')
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38 labels = [field for field in form.fieldList if field.label]
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39 if labels:
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40 # if there is no label, we don't need to use pairs
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41 form_ui.changeLayout("pairs")
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43 for field in form.fieldList:
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44 if field.fieldType == 'fixed':
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45 __field_type = 'text'
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46 elif field.fieldType == 'text-single':
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47 __field_type = "string"
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48 elif field.fieldType == 'text-private':
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49 __field_type = "password"
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50 elif field.fieldType == 'list-single':
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51 __field_type = "list"
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52 else:
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53 error(u"FIXME FIXME FIXME: Type [%s] is not managed yet by SàT" % field.fieldType)
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54 __field_type = "string"
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55
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56 if labels:
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57 if field.label:
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58 form_ui.addLabel(field.label)
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59 else:
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60 form_ui.addEmpty()
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62 form_ui.addElement(__field_type, field.var, field.value, [option.value for option in field.options])
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63 return form_ui.toXml()
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65
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66 def tupleList2dataForm(values):
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67 """convert a list of tuples (name,value) to a wokkel submit data form"""
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68 form = data_form.Form('submit')
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69 for value in values:
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70 field = data_form.Field(var=value[0], value=value[1])
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71 form.addField(field)
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72
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73 return form
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75
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76 def paramsXml2xmlUI(xml):
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77 """Convert the xml for parameter to a SàT XML User Interface"""
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78 params_doc = minidom.parseString(xml.encode('utf-8'))
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79 top = params_doc.documentElement
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80 if top.nodeName != 'params':
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81 error(_('INTERNAL ERROR: parameters xml not valid'))
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82 assert(False)
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83 param_ui = XMLUI("param", "tabs")
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84 for category in top.getElementsByTagName("category"):
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85 name = category.getAttribute('name')
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86 label = category.getAttribute('label')
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87 if not name:
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88 error(_('INTERNAL ERROR: params categories must have a name'))
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89 assert(False)
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90 param_ui.addCategory(name, 'pairs', label=label)
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91 for param in category.getElementsByTagName("param"):
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92 name = param.getAttribute('name')
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93 label = param.getAttribute('label')
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94 if not name:
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95 error(_('INTERNAL ERROR: params must have a name'))
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96 assert(False)
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97 type_ = param.getAttribute('type')
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98 value = param.getAttribute('value') or None
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99 callback_id = param.getAttribute('callback_id') or None
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100 if type_ == "button":
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101 param_ui.addEmpty()
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102 else:
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103 param_ui.addLabel(label or name)
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104 param_ui.addElement(name=name, type_=type_, value=value, callback_id=callback_id)
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105
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106 return param_ui.toXml()
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107
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108
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109 class XMLUI(object):
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110 """This class is used to create a user interface (form/window/parameters/etc) using SàT XML"""
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111
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112 def __init__(self, panel_type, layout="vertical", title=None):
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113 """Init SàT XML Panel
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114 @param panel_type: one of
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115 - window (new window)
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116 - form (formulaire, depend of the frontend, usually a panel with cancel/submit buttons)
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117 - param (parameters, presentatio depend of the frontend)
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118 @param layout: disposition of elements, one of:
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119 - vertical: elements are disposed up to bottom
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120 - horizontal: elements are disposed left to right
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121 - pairs: elements come on two aligned columns
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122 (usually one for a label, the next for the element)
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123 - tabs: elemens are in categories with tabs (notebook)
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124 @param title: title or default if None
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125 """
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126 if not panel_type in ['window', 'form', 'param']:
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127 error(_("Unknown panel type [%s]") % panel_type)
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128 assert(False)
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129 self.type_ = panel_type
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130 impl = minidom.getDOMImplementation()
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131
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132 self.doc = impl.createDocument(None, "sat_xmlui", None)
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133 top_element = self.doc.documentElement
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134 top_element.setAttribute("type", panel_type)
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135 if title:
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136 top_element.setAttribute("title", title)
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137 self.parentTabsLayout = None # used only we have 'tabs' layout
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138 self.currentCategory = None # used only we have 'tabs' layout
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139 self.currentLayout = None
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140 self.changeLayout(layout)
103
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141
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142 def __del__(self):
587
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143 self.doc.unlink()
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144
103
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145 def __createLayout(self, layout, parent=None):
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146 """Create a layout element
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147 @param type: layout type (cf init doc)
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148 @parent: parent element or None
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149 """
104
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150 if not layout in ['vertical', 'horizontal', 'pairs', 'tabs']:
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151 error(_("Unknown layout type [%s]") % layout)
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152 assert False
103
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153 layout_elt = self.doc.createElement('layout')
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154 layout_elt.setAttribute('type', layout)
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155 if parent is not None:
103
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156 parent.appendChild(layout_elt)
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157 return layout_elt
37
a61beb21d16d Gateway registration, unregistration & edition
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158
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159 def __createElem(self, type_, name=None, parent=None):
103
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160 """Create an element
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161 @param type_: one of
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162 - empty: empty element (usefull to skip something in a layout, e.g. skip first element in a PAIRS layout)
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163 - text: text to be displayed in an multi-line area, e.g. instructions
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164 @param name: name of the element or None
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165 @param parent: parent element or None
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166 """
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167 elem = self.doc.createElement('elem')
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168 if name:
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169 elem.setAttribute('name', name)
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170 elem.setAttribute('type', type_)
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171 if parent is not None:
103
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172 parent.appendChild(elem)
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173 return elem
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174
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175 def changeLayout(self, layout):
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176 """Change the current layout"""
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177 self.currentLayout = self.__createLayout(layout, self.currentCategory if self.currentCategory else self.doc.documentElement)
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178 if layout == "tabs":
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179 self.parentTabsLayout = self.currentLayout
103
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180
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181 def addEmpty(self, name=None):
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182 """Add a multi-lines text"""
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183 self.__createElem('empty', name, self.currentLayout)
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184
103
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185 def addText(self, text, name=None):
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186 """Add a multi-lines text"""
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187 elem = self.__createElem('text', name, self.currentLayout)
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188 text = self.doc.createTextNode(text)
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189 elem.appendChild(text)
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190
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191 def addLabel(self, text, name=None):
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192 """Add a single line text, mainly useful as label before element"""
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193 elem = self.__createElem('label', name, self.currentLayout)
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194 elem.setAttribute('value', text)
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195
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196 def addString(self, name=None, value=None):
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197 """Add a string box"""
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198 elem = self.__createElem('string', name, self.currentLayout)
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199 if value:
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200 elem.setAttribute('value', value)
587
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201
103
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diff changeset
202 def addPassword(self, name=None, value=None):
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diff changeset
203 """Add a password box"""
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204 elem = self.__createElem('password', name, self.currentLayout)
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205 if value:
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206 elem.setAttribute('value', value)
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207
107
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208 def addTextBox(self, name=None, value=None):
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209 """Add a string box"""
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210 elem = self.__createElem('textbox', name, self.currentLayout)
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211 if value:
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212 elem.setAttribute('value', value)
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213
183
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diff changeset
214 def addBool(self, name=None, value="true"):
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parents: 160
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215 """Add a string box"""
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216 assert value in ["true", "false"]
183
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217 elem = self.__createElem('bool', name, self.currentLayout)
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218 elem.setAttribute('value', value)
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219
107
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220 def addList(self, options, name=None, value=None, style=set()):
103
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221 """Add a list of choices"""
107
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diff changeset
222 styles = set(style)
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223 assert options
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224 assert styles.issubset(['multi'])
103
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225 elem = self.__createElem('list', name, self.currentLayout)
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226 self.addOptions(options, elem)
103
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227 if value:
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228 elem.setAttribute('value', value)
107
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229 for style in styles:
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230 elem.setAttribute(style, 'yes')
105
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231
107
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232 def addButton(self, callback_id, name, value, fields_back=[]):
105
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233 """Add a button
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diff changeset
234 @param callback: callback which will be called if button is pressed
106
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diff changeset
235 @param name: name
107
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236 @param value: label of the button
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237 @fields_back: list of names of field to give back when pushing the button"""
105
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238 elem = self.__createElem('button', name, self.currentLayout)
106
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diff changeset
239 elem.setAttribute('callback_id', callback_id)
107
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240 elem.setAttribute('value', value)
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241 for field in fields_back:
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242 fback_el = self.doc.createElement('field_back')
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diff changeset
243 fback_el.setAttribute('name', field)
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244 elem.appendChild(fback_el)
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245
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246 def addElement(self, type_, name=None, value=None, options=None, callback_id=None):
103
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247 """Convenience method to add element, the params correspond to the ones in addSomething methods"""
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248 if type_ == 'empty':
103
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249 self.addEmpty(name)
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250 elif type_ == 'text':
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251 assert value is not None
146
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diff changeset
252 self.addText(value, name)
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253 elif type_ == 'label':
103
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254 assert(value)
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diff changeset
255 self.addLabel(value)
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256 elif type_ == 'string':
103
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257 self.addString(name, value)
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258 elif type_ == 'password':
103
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diff changeset
259 self.addPassword(name, value)
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260 elif type_ == 'textbox':
107
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261 self.addTextBox(name, value)
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262 elif type_ == 'bool':
183
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diff changeset
263 if not value:
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diff changeset
264 value = "true"
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diff changeset
265 self.addBool(name, value)
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266 elif type_ == 'list':
103
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diff changeset
267 self.addList(options, name, value)
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268 elif type_ == 'button':
106
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parents: 105
diff changeset
269 assert(callback_id and value)
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diff changeset
270 self.addButton(callback_id, name, value)
103
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271
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diff changeset
272 def addOptions(self, options, parent):
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diff changeset
273 """Add options to a multi-values element (e.g. list)
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diff changeset
274 @param parent: multi-values element"""
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parents: 102
diff changeset
275 for option in options:
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diff changeset
276 opt = self.doc.createElement('option')
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diff changeset
277 opt.setAttribute('value', option)
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parents: 102
diff changeset
278 parent.appendChild(opt)
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diff changeset
279
183
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parents: 160
diff changeset
280 def addCategory(self, name, layout, label=None):
104
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parents: 103
diff changeset
281 """Add a category to current layout (must be a tabs layout)"""
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parents: 103
diff changeset
282 assert(layout != 'tabs')
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parents: 103
diff changeset
283 if not self.parentTabsLayout:
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284 error(_("Trying to add a category without parent tabs layout"))
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285 assert(False)
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286 if self.parentTabsLayout.getAttribute('type') != 'tabs':
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287 error(_("parent layout of a category is not tabs"))
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288 assert(False)
183
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289
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290 if not label:
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291 label = name
104
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292 self.currentCategory = cat = self.doc.createElement('category')
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293 cat.setAttribute('name', name)
183
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294 cat.setAttribute('label', label)
104
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295 self.changeLayout(layout)
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296 self.parentTabsLayout.appendChild(cat)
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297
103
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298 def toXml(self):
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299 """return the XML representation of the panel"""
103
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300 return self.doc.toxml()
289
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301
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302
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303 class ElementParser(object):
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304 """callable class to parse XML string into Element
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305 Found at http://stackoverflow.com/questions/2093400/how-to-create-twisted-words-xish-domish-element-entirely-from-raw-xml/2095942#2095942
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306 (c) Karl Anderson"""
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307
590
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308 def __call__(self, string):
289
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309 self.result = None
590
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310
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311 def onStart(elem):
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312 self.result = elem
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313
289
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314 def onEnd():
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315 pass
590
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316
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317 def onElement(elem):
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318 self.result.addChild(elem)
289
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319
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320 parser = domish.elementStream()
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321 parser.DocumentStartEvent = onStart
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322 parser.ElementEvent = onElement
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parents: 228
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323 parser.DocumentEndEvent = onEnd
536
a31abb97310d core, plugins: fixed bad namespace in stanza creation
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324 tmp = domish.Element((None, "s"))
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325 tmp.addRawXml(string.replace('\n', '').replace('\t', ''))
304
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parents: 289
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326 parser.parse(tmp.toXml().encode('utf-8'))
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diff changeset
327 return self.result.firstChildElement()