annotate browser/sat_browser/base_menu.py @ 1199:b300eaec53b6

server: don't raise error anymore if themes_dir is invalid or legacy blog can't be created: legacy blog will be entirely removed with 0.8 release, and themes_dir is only used by it. This patch limit troubles with this old code by not raising an error anymore if option is wrong or if the legacy blog can't be created. fix 317
author Goffi <goffi@goffi.org>
date Tue, 09 Jul 2019 20:20:46 +0200
parents 2af117bfe6cc
children
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011-2019 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 """Base classes for building a menu.
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22
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23 These classes have been moved here from menu.py because they are also used
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24 by base_widget.py, and the import sequence caused a JS runtime error."""
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25
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26
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27 from sat.core.log import getLogger
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28 log = getLogger(__name__)
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29
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30 from pyjamas.ui.MenuBar import MenuBar
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31 from pyjamas.ui.MenuItem import MenuItem
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32 from pyjamas import Window
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33 from sat_frontends.quick_frontend import quick_menus
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34 from sat_browser import html_tools
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36
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37 unicode = str # FIXME: pyjamas workaround
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38
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39
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40 class MenuCmd(object):
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41 """Return an object with an "execute" method that can be set to a menu item callback"""
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42
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43 def __init__(self, menu_item, caller=None):
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44 """
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45 @param menu_item(quick_menu.MenuItem): instance of a callbable MenuItem
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46 @param caller: menu caller
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47 """
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48 self.item = menu_item
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49 self._caller = caller
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50
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51 def execute(self):
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52 self.item.call(self._caller)
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53
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54
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55 class SimpleCmd(object):
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56 """Return an object with an "executre" method that launch a callback"""
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57
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58 def __init__(self, callback):
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59 """
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60 @param callback: method to call when menu is selected
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61 """
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62 self.callback = callback
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63
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64 def execute(self):
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65 self.callback()
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67
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68 class GenericMenuBar(MenuBar):
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69 """A menu bar with sub-categories and items"""
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70
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71 def __init__(self, host, vertical=False, styles=None, flat_level=0, **kwargs):
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72 """
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73 @param host (SatWebFrontend): host instance
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74 @param vertical (bool): True to display the popup menu vertically
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75 @param styles (dict): specific styles to be applied:
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76 - key: a value in ('moved_popup', 'menu_bar')
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77 - value: a CSS class name
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78 @param flat_level (int): sub-menus until that level see their items
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79 displayed in the parent menu bar instead of in a callback popup.
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80 """
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81 MenuBar.__init__(self, vertical, **kwargs)
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82 self.host = host
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83 self.styles = {}
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84 if styles:
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85 self.styles.update(styles)
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86 try:
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87 self.setStyleName(self.styles['menu_bar'])
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88 except KeyError:
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89 pass
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90 self.menus_container = None
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91 self.flat_level = flat_level
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92
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93 def update(self, type_, caller=None):
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94 """Method to call when menus have changed
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95
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96 @param type_: menu type like in sat.core.sat_main.importMenu
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97 @param caller: instance linked to the menus
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98 """
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99 self.menus_container = self.host.menus.getMainContainer(type_)
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100 self._caller=caller
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101 self.createMenus()
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102
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103 @classmethod
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104 def getCategoryHTML(cls, category):
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105 """Build the html to be used for displaying a category item.
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106
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107 Inheriting classes may overwrite this method.
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108 @param category (quick_menus.MenuCategory): category to add
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109 @return unicode: HTML to display
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110 """
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111 return html_tools.html_sanitize(category.name)
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112
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113 def _buildMenus(self, container, flat_level, caller=None):
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114 """Recursively build menus of the container
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115
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116 @param container: a quick_menus.MenuContainer instance
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117 @param caller: instance linked to the menus
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118 """
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119 for child in container.getActiveMenus():
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120 if isinstance(child, quick_menus.MenuContainer):
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121 item = self.addCategory(child, flat=bool(flat_level))
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122 submenu = item.getSubMenu()
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123 if submenu is None:
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124 submenu = self
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125 submenu._buildMenus(child, flat_level-1 if flat_level else 0, caller)
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126 elif isinstance(child, quick_menus.MenuSeparator):
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127 item = MenuItem(text='', asHTML=None, StyleName="menuSeparator")
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128 self.addItem(item)
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129 elif isinstance(child, quick_menus.MenuItem):
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130 self.addItem(child.name, False, MenuCmd(child, caller) if child.CALLABLE else None)
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131 else:
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132 log.error(u"Unknown child type: {}".format(child))
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133
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134 def createMenus(self):
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135 self.clearItems()
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Goffi <goffi@goffi.org>
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136 if self.menus_container is None:
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Goffi <goffi@goffi.org>
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137 log.debug("Menu is empty")
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Goffi <goffi@goffi.org>
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138 return
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139 self._buildMenus(self.menus_container, self.flat_level, self._caller)
508
1d41cc5b57b1 browser_side: fixes using addStyleName and removeStyleName on a GenericMenuBar
souliane <souliane@mailoo.org>
parents: 502
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140
494
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souliane <souliane@mailoo.org>
parents:
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141 def doItemAction(self, item, fireCommand):
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parents:
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142 """Overwrites the default behavior for the popup menu to fit in the screen"""
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parents:
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143 MenuBar.doItemAction(self, item, fireCommand)
498
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souliane <souliane@mailoo.org>
parents: 494
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144 if not self.popup:
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souliane <souliane@mailoo.org>
parents: 494
diff changeset
145 return
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souliane <souliane@mailoo.org>
parents: 494
diff changeset
146 if self.vertical:
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souliane <souliane@mailoo.org>
parents: 494
diff changeset
147 # move the popup if it would go over the screen's viewport
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parents: 494
diff changeset
148 max_left = Window.getClientWidth() - self.getOffsetWidth() + 1 - self.popup.getOffsetWidth()
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parents: 494
diff changeset
149 new_left = self.getAbsoluteLeft() - self.popup.getOffsetWidth() + 1
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150 top = item.getAbsoluteTop()
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151 else:
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152 # move the popup if it would go over the menu bar right extremity
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153 max_left = self.getAbsoluteLeft() + self.getOffsetWidth() - self.popup.getOffsetWidth()
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parents: 494
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154 new_left = max_left
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diff changeset
155 top = self.getAbsoluteTop() + self.getOffsetHeight() - 1
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souliane <souliane@mailoo.org>
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diff changeset
156 if item.getAbsoluteLeft() > max_left:
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157 self.popup.setPopupPosition(new_left, top)
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souliane <souliane@mailoo.org>
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158 # eventually smooth the popup edges to fit the menu own style
676
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parents: 662
diff changeset
159 try:
498
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parents: 494
diff changeset
160 self.popup.addStyleName(self.styles['moved_popup'])
676
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parents: 662
diff changeset
161 except KeyError:
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parents: 662
diff changeset
162 pass
494
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parents:
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163
676
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diff changeset
164 def addCategory(self, category, menu_bar=None, flat=False):
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165 """Add a new category.
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
166
690
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souliane <souliane@mailoo.org>
parents: 685
diff changeset
167 @param category (quick_menus.MenuCategory): category to add
676
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parents: 662
diff changeset
168 @param menu_bar (GenericMenuBar): instance to popup as the category sub-menu.
494
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parents:
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169 """
676
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parents: 662
diff changeset
170 html = self.getCategoryHTML(category)
509
35ccb3ff8245 browser_side: add method GenericMenuBar.addCategory + fixes MenuNode.addMenuItem when callback argument is a sub-menu
souliane <souliane@mailoo.org>
parents: 508
diff changeset
171
676
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parents: 662
diff changeset
172 if menu_bar is not None:
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parents: 662
diff changeset
173 assert not flat # can't have a menu_bar and be flat at the same time
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parents: 662
diff changeset
174 sub_menu = menu_bar
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parents: 662
diff changeset
175 elif not flat:
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
176 sub_menu = GenericMenuBar(self.host, vertical=True)
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
177 else:
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
178 sub_menu = None
498
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parents: 494
diff changeset
179
676
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
180 item = self.addItem(html, True, sub_menu)
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
181 if flat:
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
182 item.setStyleName("menuFlattenedCategory")
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Goffi <goffi@goffi.org>
parents: 662
diff changeset
183 return item