Mercurial > libervia-backend
annotate frontends/src/primitivus/xmlui.py @ 265:b5f1f3dc9ac6
bridge: automatic bridge generator, first draft
author | Goffi <goffi@goffi.org> |
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date | Mon, 24 Jan 2011 01:22:00 +0100 |
parents | b1794cbb88e5 |
children | cf005701624b |
rev | line source |
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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 Primitivus: a SAT frontend |
228 | 6 Copyright (C) 2009, 2010, 2011 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 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 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 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 import urwid |
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23 from urwid_satext import sat_widgets |
162 | 24 from logging import debug, info, warning, error |
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25 from xml.dom import minidom |
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26 |
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27 class Pairs(urwid.WidgetWrap): |
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28 |
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29 def __init__(self, weight_0='1', weight_1='1'): |
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30 self.idx = 0 |
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31 self.weight_0 = weight_0 |
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32 self.weight_1 = weight_1 |
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33 columns = urwid.Columns([urwid.Text(''), urwid.Text('')]) |
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34 #XXX: empty Text hack needed because Pile doesn't support empty list |
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35 urwid.WidgetWrap.__init__(self,columns) |
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36 |
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37 def append(self, widget): |
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38 pile = self._w.widget_list[self.idx] |
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39 if isinstance(pile, urwid.Text): |
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40 self._w.widget_list[self.idx] = urwid.Pile([widget]) |
149 | 41 if self.idx == 1: |
42 self._w.set_focus(1) | |
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43 else: |
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44 pile.widget_list.append(widget) |
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45 pile.item_types.append(('weight',getattr(self,'weight_'+str(self.idx)))) |
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46 self.idx = (self.idx + 1) % 2 |
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47 |
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48 class InvalidXMLUI(Exception): |
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49 pass |
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50 |
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51 class XMLUI(urwid.WidgetWrap): |
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52 |
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53 def __init__(self, host, xml_data, title = None, options = [], misc={}): |
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54 self.host = host |
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55 self.title = title |
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56 self.options = options |
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57 self.misc = misc |
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58 self.__dest = "window" |
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59 self.ctrl_list = {} # usefull to access ctrl |
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60 widget = self.constructUI(xml_data) |
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61 urwid.WidgetWrap.__init__(self,widget) |
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62 |
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63 def __parseElems(self, node, parent): |
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64 """Parse elements inside a <layout> tags, and add them to the parent""" |
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65 for elem in node.childNodes: |
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66 if elem.nodeName != "elem": |
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67 message=_("Unmanaged tag") |
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68 error(message) |
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69 raise Exception(message) |
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70 id = elem.getAttribute("id") |
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71 name = elem.getAttribute("name") |
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72 type = elem.getAttribute("type") |
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73 value = elem.getAttribute("value") if elem.hasAttribute('value') else u'' |
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74 if type=="empty": |
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75 ctrl = urwid.Text('') |
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76 elif type=="text": |
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77 try: |
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78 value = elem.childNodes[0].wholeText |
149 | 79 except IndexError: |
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80 warning (_("text node has no child !")) |
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81 ctrl = urwid.Text(value) |
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82 elif type=="label": |
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83 ctrl = urwid.Text(value+": ") |
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84 elif type=="string": |
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85 ctrl = sat_widgets.AdvancedEdit(edit_text = value) |
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86 self.ctrl_list[name] = ({'type':type, 'control':ctrl}) |
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87 elif type=="password": |
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88 ctrl = sat_widgets.Password(edit_text = value) |
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89 self.ctrl_list[name] = ({'type':type, 'control':ctrl}) |
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90 elif type=="textbox": |
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91 ctrl = sat_widgets.AdvancedEdit(edit_text = value, multiline=True) |
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92 self.ctrl_list[name] = ({'type':type, 'control':ctrl}) |
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93 elif type=="bool": |
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94 ctrl = urwid.CheckBox('', state = value=="true") |
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95 self.ctrl_list[name] = ({'type':type, 'control':ctrl}) |
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96 elif type=="list": |
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97 style=[] if elem.getAttribute("multi")=='yes' else ['single'] |
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98 ctrl = sat_widgets.List(options=[option.getAttribute("value") for option in elem.getElementsByTagName("option")], style=style) |
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99 self.ctrl_list[name] = ({'type':type, 'control':ctrl}) |
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100 elif type=="button": |
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101 callback_id = elem.getAttribute("callback_id") |
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102 ctrl = sat_widgets.CustomButton(value, on_press=self.onButtonPress) |
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103 ctrl.param_id = (callback_id,[field.getAttribute('name') for field in elem.getElementsByTagName("field_back")]) |
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104 else: |
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105 error(_("FIXME FIXME FIXME: type [%s] is not implemented") % type) #FIXME ! |
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106 raise NotImplementedError |
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107 if self.type == 'param': |
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108 if isinstance(ctrl,urwid.Edit) or isinstance(ctrl,urwid.CheckBox): |
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109 urwid.connect_signal(ctrl,'change',self.onParamChange) |
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110 ctrl._param_category = self._current_category |
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111 ctrl._param_name = name |
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112 parent.append(ctrl) |
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113 |
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114 def __parseChilds(self, current, elem, wanted = ['layout'], data = None): |
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115 """Recursively parse childNodes of an elemen |
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116 @param current: widget container with 'append' method |
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117 @param elem: element from which childs will be parsed |
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118 @param wanted: list of tag names that can be present in the childs to be SàT XMLUI compliant""" |
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119 for node in elem.childNodes: |
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120 if wanted and not node.nodeName in wanted: |
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121 raise InvalidXMLUI |
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122 if node.nodeName == "layout": |
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123 type = node.getAttribute('type') |
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124 if type == "tabs": |
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125 tab_cont = sat_widgets.TabsContainer() |
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126 self.__parseChilds(current, node, ['category'], tab_cont) |
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127 current.append(tab_cont) |
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128 elif type == "vertical": |
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129 self.__parseElems(node, current) |
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130 elif type == "pairs": |
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131 pairs = Pairs() |
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132 self.__parseElems(node, pairs) |
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133 current.append(pairs) |
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134 else: |
152
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135 warning(_("Unknown layout, using default one")) |
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136 self.__parseElems(node, current) |
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137 elif node.nodeName == "category": |
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138 name = node.getAttribute('name') |
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139 label = node.getAttribute('label') |
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140 if not name or not isinstance(data,sat_widgets.TabsContainer): |
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141 raise InvalidXMLUI |
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142 if self.type == 'param': |
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143 self._current_category = name #XXX: awful hack because params need category and we don't keep parent |
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144 tab_cont = data |
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145 listbox = tab_cont.addTab(label or name) |
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146 self.__parseChilds(listbox.body, node, ['layout']) |
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147 else: |
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148 message=_("Unknown tag") |
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149 error(message) |
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150 raise NotImplementedError |
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151 |
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152 def constructUI(self, xml_data): |
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153 |
166
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154 ret_wid = urwid.ListBox(urwid.SimpleListWalker([])) |
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155 |
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156 cat_dom = minidom.parseString(xml_data.encode('utf-8')) |
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157 top=cat_dom.documentElement |
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158 self.type = top.getAttribute("type") |
170
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159 self.title = top.getAttribute("title") or self.title |
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160 if top.nodeName != "sat_xmlui" or not self.type in ['form', 'param', 'window']: |
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161 raise InvalidXMLUI |
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162 |
166
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163 if self.type == 'param': |
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164 self.param_changed = set() |
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165 |
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166 self.__parseChilds(ret_wid.body, cat_dom.documentElement) |
152
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167 |
166
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168 assert ret_wid.body |
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169 |
222
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170 if isinstance(ret_wid.body[0],sat_widgets.TabsContainer): |
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171 ret_wid = ret_wid.body[0] #xxx: awfull hack cause TabsContainer is a BoxWidget, can't be inside a ListBox |
166
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172 |
144
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173 |
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174 if self.type == 'form': |
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175 buttons = [] |
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176 buttons.append(urwid.Button(_('Submit'),self.onFormSubmitted)) |
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177 if not 'NO_CANCEL' in self.options: |
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178 buttons.append(urwid.Button(_('Cancel'),self.onFormCancelled)) |
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179 max_len = max([len(button.get_label()) for button in buttons]) |
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180 grid_wid = urwid.GridFlow(buttons,max_len+4,1,0,'center') |
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181 ret_wid.body.append(grid_wid) |
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182 elif self.type == 'param': |
222
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183 assert(isinstance(ret_wid,sat_widgets.TabsContainer)) |
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184 buttons = [] |
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185 buttons.append(sat_widgets.CustomButton(_('Save'),self.onSaveParams)) |
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186 buttons.append(sat_widgets.CustomButton(_('Cancel'),lambda x:self.host.removeWindow())) |
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187 max_len = max([button.getSize() for button in buttons]) |
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188 grid_wid = urwid.GridFlow(buttons,max_len,1,0,'center') |
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189 ret_wid.addFooter(grid_wid) |
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190 return ret_wid |
144
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191 |
170
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192 def show(self,show_type = 'popup'): |
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193 """Show the constructed UI |
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194 @param show_type: how to show the UI: |
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195 - popup |
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196 - window""" |
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197 self.__dest = "popup" |
222
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198 decorated = sat_widgets.LabelLine(self, sat_widgets.SurroundedText(self.title or '')) |
170
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199 if show_type == 'popup': |
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200 self.host.showPopUp(decorated) |
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201 elif show_type == 'window': |
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202 self.host.addWindow(decorated) |
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203 else: |
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204 error(_('INTERNAL ERROR: Unmanaged show_type (%s)') % show_type) |
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205 assert(False) |
144
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206 self.host.redraw() |
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207 |
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208 |
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209 ##EVENTS## |
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210 |
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211 def onButtonPress(self, button): |
157
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212 callback_id, fields = button.param_id |
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213 data = {"callback_id":callback_id} |
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214 for field in fields: |
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215 ctrl = self.ctrl_list[field] |
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216 if isinstance(ctrl['control'],sat_widgets.List): |
157
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217 data[field] = '\t'.join(ctrl['control'].getSelectedValues()) |
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218 else: |
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219 data[field] = ctrl['control'].getValue() |
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220 |
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221 id = self.host.bridge.launchAction("button", data, profile_key = self.host.profile) |
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222 self.host.current_action_ids.add(id) |
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223 |
183
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224 def onParamChange(self, widget, extra=None): |
166
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225 """Called when type is param and a widget to save is modified""" |
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226 assert(self.type == "param") |
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227 self.param_changed.add(widget) |
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228 |
144
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229 def onFormSubmitted(self, button): |
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230 data = [] |
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231 for ctrl_name in self.ctrl_list: |
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232 ctrl = self.ctrl_list[ctrl_name] |
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233 if isinstance(ctrl['control'], sat_widgets.List): |
144
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234 data.append((ctrl_name, ctrl['control'].getSelectedValue())) |
192
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235 elif isinstance(ctrl['control'], urwid.CheckBox): |
183
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236 data.append((ctrl_name, "true" if ctrl['control'].get_state() else "false")) |
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237 else: |
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238 data.append((ctrl_name, ctrl['control'].get_edit_text())) |
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239 if self.misc.has_key('action_back'): #FIXME FIXME FIXME: WTF ! Must be cleaned |
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240 raise NotImplementedError |
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241 self.host.debug() |
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242 elif self.misc.has_key('callback'): |
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243 self.misc['callback'](data) |
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244 else: |
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245 warning (_("The form data is not sent back, the type is not managed properly")) |
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246 self.host.removePopUp() |
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247 |
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248 def onFormCancelled(self, button): |
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249 if self.__dest == 'window': |
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250 self.host.removeWindow() |
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251 else: |
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252 self.host.removePopUp() |
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253 |
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254 def onSaveParams(self, button): |
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255 for ctrl in self.param_changed: |
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256 if isinstance(ctrl, urwid.CheckBox): |
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257 value = "true" if ctrl.get_state() else "false" |
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258 else: |
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259 value = ctrl.get_edit_text() |
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260 self.host.bridge.setParam(ctrl._param_name, value, ctrl._param_category, profile_key = self.host.profile) |
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261 self.host.removeWindow() |