Mercurial > libervia-desktop-kivy

annotate cagou/core/cagou_widget.py @ 488:beedff600d2b

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blog: blog widget implementation: this patch implements a basic blog widget. The search bare can be used to change node (only node for now, will be improved to do search and all). Publication on current node can be done by pressing the pencil icon. A checkbox can be activated to use end-to-end encryption. No pagination or comments are supported for now. Due to lack of HTML rendering in Kivy, only simple formatting is supported. If item is end-2-end encrypted, a green closed locker is shown next to publication date. rel 380
author Goffi <goffi@goffi.org>
date Sat, 15 Oct 2022 20:20:10 +0200
parents 3c9ba4a694ef
children 203755bbe0fe
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rev   line source
379
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1 #!/usr/bin/env python3
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2
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3
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4 # Cagou: desktop/mobile frontend for Salut à Toi XMPP client
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5 # Copyright (C) 2016-2021 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
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21 from functools import total_ordering
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22 from sat.core import log as logging
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23 from sat.core import exceptions
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24 from kivy.uix.behaviors import ButtonBehavior
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25 from kivy.uix.boxlayout import BoxLayout
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26 from kivy.uix.dropdown import DropDown
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27 from kivy.uix.screenmanager import Screen
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28 from kivy.uix.textinput import TextInput
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29 from kivy import properties
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30 from cagou import G
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31 from .common import ActionIcon
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32 from . import menu
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35 log = logging.getLogger(__name__)
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37
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38 class HeaderChoice(ButtonBehavior, BoxLayout):
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39 pass
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40
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41
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42 class HeaderChoiceWidget(HeaderChoice):
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43 cagou_widget = properties.ObjectProperty()
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44 plugin_info = properties.ObjectProperty()
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46 def __init__(self, **kwargs):
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47 super().__init__(**kwargs)
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48 self.bind(on_release=lambda btn: self.cagou_widget.switchWidget(
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49 self.plugin_info))
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50
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51
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52 class HeaderChoiceExtraMenu(HeaderChoice):
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53 pass
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55
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56 class HeaderWidgetCurrent(ButtonBehavior, ActionIcon):
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57 pass
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58
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59
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60 class HeaderWidgetSelector(DropDown):
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61
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62 def __init__(self, cagou_widget):
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63 super(HeaderWidgetSelector, self).__init__()
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64 plg_info_cls = cagou_widget.plugin_info_class or cagou_widget.__class__
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65 for plugin_info in G.host.getPluggedWidgets(except_cls=plg_info_cls):
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66 choice = HeaderChoiceWidget(
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67 cagou_widget=cagou_widget,
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68 plugin_info=plugin_info,
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69 )
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70 self.add_widget(choice)
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71 main_menu = HeaderChoiceExtraMenu(on_press=self.on_extra_menu)
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72 self.add_widget(main_menu)
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73
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74 def add_widget(self, *args):
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75 widget = args[0]
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76 widget.bind(minimum_width=self.set_width)
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77 return super(HeaderWidgetSelector, self).add_widget(*args)
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78
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79 def set_width(self, choice, minimum_width):
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80 self.width = max([c.minimum_width for c in self.container.children])
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81
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82 def on_extra_menu(self, *args):
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83 self.dismiss()
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84 menu.ExtraSideMenu().show()
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85
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87 @total_ordering
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88 class CagouWidget(BoxLayout):
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89 main_container = properties.ObjectProperty(None)
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90 header_input = properties.ObjectProperty(None)
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91 header_box = properties.ObjectProperty(None)
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92 use_header_input = False
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93 # set to True if you want to be able to switch between visible widgets of this
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94 # class using a carousel
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95 collection_carousel = False
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96 # set to True if you a global ScreenManager global to all widgets of this class.
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97 # The screen manager is created in WHWrapper
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98 global_screen_manager = False
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99 # override this if a specific class (i.e. not self.__class__) must be used for
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100 # plugin info. Useful when a CagouWidget is used with global_screen_manager.
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101 plugin_info_class = None
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102
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103 def __init__(self, **kwargs):
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104 plg_info_cls = self.plugin_info_class or self.__class__
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105 for p in G.host.getPluggedWidgets():
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106 if p['main'] == plg_info_cls:
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107 self.plugin_info = p
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108 break
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109 super().__init__(**kwargs)
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110 self.selector = HeaderWidgetSelector(self)
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111 if self.use_header_input:
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112 self.header_input = TextInput(
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113 background_normal=G.host.app.expand(
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114 '{media}/misc/borders/border_hollow_light.png'),
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115 multiline=False,
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116 )
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117 self.header_input.bind(
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118 on_text_validate=lambda *args: self.onHeaderInput(),
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119 text=self.onHeaderInputComplete,
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120 )
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121 self.header_box.add_widget(self.header_input)
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122
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123 def __lt__(self, other):
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124 # XXX: sorting is notably used when collection_carousel is set
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125 try:
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126 target = str(self.target)
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127 except AttributeError:
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128 target = str(list(self.targets)[0])
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129 other_target = str(list(other.targets)[0])
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130 else:
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131 other_target = str(other.target)
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132 return target < other_target
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133
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134 @property
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135 def screen_manager(self):
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136 if ((not self.global_screen_manager
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137 and not (self.plugin_info_class is not None
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138 and self.plugin_info_class.global_screen_manager))):
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139 raise exceptions.InternalError(
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140 "screen_manager property can't be used if global_screen_manager is not "
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141 "set")
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142 screen = self.getAncestor(Screen)
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143 if screen is None:
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144 raise exceptions.NotFound("Can't find parent Screen")
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145 if screen.manager is None:
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146 raise exceptions.NotFound("Can't find parent ScreenManager")
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147 return screen.manager
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148
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149 @property
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150 def whwrapper(self):
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151 """Retrieve parent widget handler"""
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152 return G.host.getParentWHWrapper(self)
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153
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154 def screenManagerInit(self, screen_manager):
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155 """Override this method to do init when ScreenManager is instantiated
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156
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157 This is only called once even if collection_carousel is used.
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158 """
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159 if not self.global_screen_manager:
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160 raise exceptions.InternalError("screenManagerInit should not be called")
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161
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162 def getAncestor(self, cls):
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163 """Helper method to use host.getAncestorWidget with self"""
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164 return G.host.getAncestorWidget(self, cls)
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165
14
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166 def switchWidget(self, plugin_info):
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167 self.selector.dismiss()
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168 factory = plugin_info["factory"]
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169 new_widget = factory(plugin_info, None, iter(G.host.profiles))
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170 G.host.switchWidget(self, new_widget)
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171
357
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172 def key_input(self, window, key, scancode, codepoint, modifier):
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173 if key == 27:
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174 # we go back to root screen
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175 G.host.switchWidget(self)
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176 return True
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177
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178 def onHeaderInput(self):
312
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179 log.info("header input text entered")
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180
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181 def onHeaderInputComplete(self, wid, text):
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182 return
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183
51
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184 def on_touch_down(self, touch):
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185 if self.collide_point(*touch.pos):
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186 G.host.selected_widget = self
158
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187 return super(CagouWidget, self).on_touch_down(touch)
115
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188
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189 def headerInputAddExtra(self, widget):
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190 """add a widget on the right of header input"""
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191 self.header_box.add_widget(widget)
264
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192
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193 def onVisible(self):
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194 pass
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195 # log.debug(u"{self} is visible".format(self=self))
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196
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197 def onNotVisible(self):
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198 pass
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199 # log.debug(u"{self} is not visible anymore".format(self=self))