Mercurial > libervia-web
annotate src/browser/sat_browser/richtext.py @ 940:e30a4b7eff09
page (g/e): events invitations first draft
| author | Goffi <goffi@goffi.org> |
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| date | Thu, 27 Apr 2017 01:17:46 +0200 |
| parents | 2d15b484ca33 |
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| 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 # Libervia: a Salut à Toi frontend |
| 818 | 5 # Copyright (C) 2013-2016 Adrien Cossa <souliane@mailoo.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 from sat_frontends.tools import composition |
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21 from sat.core.i18n import _ |
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22 from sat.core.log import getLogger |
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23 log = getLogger(__name__) |
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24 from sat.tools.common import data_format |
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25 |
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26 from pyjamas.ui.TextArea import TextArea |
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27 from pyjamas.ui.Button import Button |
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28 from pyjamas.ui.CheckBox import CheckBox |
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29 from pyjamas.ui.Label import Label |
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30 from pyjamas.ui.FlexTable import FlexTable |
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31 from pyjamas.ui.HorizontalPanel import HorizontalPanel |
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32 from pyjamas.ui.KeyboardListener import KeyboardHandler |
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33 from pyjamas import Window |
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34 from __pyjamas__ import doc |
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35 |
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36 from constants import Const as C |
| 467 | 37 import dialog |
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38 import base_panel |
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39 import editor_widget |
| 467 | 40 import html_tools |
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41 import list_manager |
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42 |
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43 |
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44 class RichTextEditor(editor_widget.BaseTextEditor, FlexTable): |
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45 """Panel for the rich text editor.""" |
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46 |
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47 STYLE = {'main': 'richTextEditor', |
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48 'title': 'richTextTitle', |
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49 'toolbar': 'richTextToolbar', |
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50 'textarea': 'richTextArea' |
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51 } |
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52 |
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53 def __init__(self, host, content=None, modifiedCb=None, afterEditCb=None, options=None): |
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54 """ |
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55 |
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56 @param host (SatWebFrontend): host instance |
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57 @param content (dict): dict with at least a 'text' key |
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58 @param modifiedCb (callable): to be called when the text has been modified |
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59 @param afterEditCb (callable): to be called when the edition is done |
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60 @param options (list[unicode]): UI options ("read_only", "update_msg") |
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61 """ |
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62 FlexTable.__init__(self) # FIXME |
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63 self.host = host |
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64 self.wysiwyg = False |
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65 self.read_only = 'read_only' in options |
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66 self.update_msg = 'update_msg' in options |
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67 |
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68 indices = (-1, -1, 0, -1, -1) if self.read_only else (0, 1, 2, 3, 4) |
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69 self.title_offset, self.toolbar_offset, self.content_offset, self.tags_offset, self.command_offset = indices |
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70 self.addStyleName(self.STYLE['main']) |
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71 |
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72 editor_widget.BaseTextEditor.__init__(self, content, None, modifiedCb, afterEditCb) |
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73 |
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74 def addEditListener(self, listener): |
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75 """Add a method to be called whenever the text is edited. |
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76 |
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77 @param listener: method taking two arguments: sender, keycode |
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78 """ |
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79 editor_widget.BaseTextEditor.addEditListener(self, listener) |
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80 if hasattr(self, 'display'): |
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81 self.display.addEditListener(listener) |
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82 |
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83 def refresh(self, edit=None): |
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84 """Refresh the UI for edition/display mode. |
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85 |
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86 @param edit: set to True to display the edition mode |
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87 """ |
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88 if edit is None: |
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89 edit = hasattr(self, 'textarea') and self.textarea.getVisible() |
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90 |
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91 for widget in ['title_panel', 'tags_panel', 'command']: |
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92 if hasattr(self, widget): |
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93 getattr(self, widget).setVisible(edit) |
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94 |
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95 if hasattr(self, 'toolbar'): |
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96 self.toolbar.setVisible(False) |
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97 |
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98 if not hasattr(self, 'display'): |
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99 self.display = editor_widget.HTMLTextEditor(options={'enhance_display': False, 'listen_keyboard': False}) # for display mode |
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100 for listener in self.edit_listeners: |
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101 self.display.addEditListener(listener) |
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102 |
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103 if not self.read_only and not hasattr(self, 'textarea'): |
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104 self.textarea = EditTextArea(self) # for edition mode |
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105 self.textarea.addStyleName(self.STYLE['textarea']) |
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106 |
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107 self.getFlexCellFormatter().setColSpan(self.content_offset, 0, 2) |
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108 if edit and not self.wysiwyg: |
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109 self.textarea.setWidth('100%') # CSS width doesn't do it, don't know why |
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110 self.setWidget(self.content_offset, 0, self.textarea) |
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111 else: |
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112 self.setWidget(self.content_offset, 0, self.display) |
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113 if not edit: |
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114 return |
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115 |
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116 if not self.read_only and not hasattr(self, 'title_panel'): |
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117 self.title_panel = base_panel.TitlePanel() |
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118 self.title_panel.addStyleName(self.STYLE['title']) |
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119 self.getFlexCellFormatter().setColSpan(self.title_offset, 0, 2) |
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120 self.setWidget(self.title_offset, 0, self.title_panel) |
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121 |
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122 if not self.read_only and not hasattr(self, 'tags_panel'): |
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123 suggested_tags = [] # TODO: feed this list with tags suggestion |
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124 self.tags_panel = list_manager.TagsPanel(suggested_tags) |
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125 self.getFlexCellFormatter().setColSpan(self.tags_offset, 0, 2) |
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126 self.setWidget(self.tags_offset, 0, self.tags_panel) |
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127 |
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128 if not self.read_only and not hasattr(self, 'command'): |
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129 self.command = HorizontalPanel() |
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130 self.command.addStyleName("marginAuto") |
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131 self.command.add(Button("Cancel", lambda: self.edit(True, True))) |
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132 self.command.add(Button("Update" if self.update_msg else "Send message", lambda: self.edit(False))) |
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133 self.getFlexCellFormatter().setColSpan(self.command_offset, 0, 2) |
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134 self.setWidget(self.command_offset, 0, self.command) |
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135 |
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136 def setToolBar(self, syntax): |
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137 """This method is called asynchronously after the parameter |
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138 holding the rich text syntax is retrieved. It is called at |
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139 each call of self.edit(True) because the user may |
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140 have change his setting since the last time.""" |
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141 if syntax is None or syntax not in composition.RICH_SYNTAXES.keys(): |
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142 syntax = composition.RICH_SYNTAXES.keys()[0] |
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143 if hasattr(self, "toolbar") and self.toolbar.syntax == syntax: |
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144 self.toolbar.setVisible(True) |
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145 return |
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146 self.toolbar = HorizontalPanel() |
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147 self.toolbar.syntax = syntax |
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148 self.toolbar.addStyleName(self.STYLE['toolbar']) |
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149 for key in composition.RICH_SYNTAXES[syntax].keys(): |
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150 self.addToolbarButton(syntax, key) |
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151 self.wysiwyg_button = CheckBox(_('preview')) |
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152 wysiywgCb = lambda sender: self.setWysiwyg(sender.getChecked()) |
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153 self.wysiwyg_button.addClickListener(wysiywgCb) |
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154 self.toolbar.add(self.wysiwyg_button) |
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155 self.syntax_label = Label(_("Syntax: %s") % syntax) |
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156 self.syntax_label.addStyleName("richTextSyntaxLabel") |
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157 self.toolbar.add(self.syntax_label) |
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158 self.toolbar.setCellWidth(self.syntax_label, "100%") |
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159 self.getFlexCellFormatter().setColSpan(self.toolbar_offset, 0, 2) |
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160 self.setWidget(self.toolbar_offset, 0, self.toolbar) |
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161 |
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162 def setWysiwyg(self, wysiwyg, init=False): |
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163 """Toggle the edition mode between rich content syntax and wysiwyg. |
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164 @param wysiwyg: boolean value |
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165 @param init: set to True to re-init without switching the widgets.""" |
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166 def setWysiwyg(): |
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167 self.wysiwyg = wysiwyg |
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168 try: |
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169 self.wysiwyg_button.setChecked(wysiwyg) |
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170 except (AttributeError, TypeError): |
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171 pass |
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172 try: |
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173 if wysiwyg: |
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174 self.syntax_label.addStyleName('transparent') |
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175 else: |
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176 self.syntax_label.removeStyleName('transparent') |
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177 except (AttributeError, TypeError): |
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178 pass |
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179 if not wysiwyg: |
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180 self.display.removeStyleName('richTextWysiwyg') |
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181 |
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182 if init: |
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183 setWysiwyg() |
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184 return |
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185 |
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186 self.getFlexCellFormatter().setColSpan(self.content_offset, 0, 2) |
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187 if wysiwyg: |
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188 def syntaxConvertCb(text): |
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189 self.display.setContent({'text': text}) |
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190 self.textarea.removeFromParent() # XXX: force as it is not always done... |
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191 self.setWidget(self.content_offset, 0, self.display) |
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192 self.display.addStyleName('richTextWysiwyg') |
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193 self.display.edit(True) |
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194 content = self.getContent() |
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195 if content['text'] and content['syntax'] != C.SYNTAX_XHTML: |
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196 self.host.bridge.call('syntaxConvert', syntaxConvertCb, content['text'], content['syntax'], C.SYNTAX_XHTML) |
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197 else: |
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198 syntaxConvertCb(content['text']) |
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199 else: |
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200 syntaxConvertCb = lambda text: self.textarea.setText(text) |
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201 text = self.display.getContent()['text'] |
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202 if text and self.toolbar.syntax != C.SYNTAX_XHTML: |
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203 self.host.bridge.call('syntaxConvert', syntaxConvertCb, text) |
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204 else: |
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205 syntaxConvertCb(text) |
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206 self.setWidget(self.content_offset, 0, self.textarea) |
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207 self.textarea.setWidth('100%') # CSS width doesn't do it, don't know why |
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208 |
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209 setWysiwyg() # do it in the end because it affects self.getContent |
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210 |
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211 def addToolbarButton(self, syntax, key): |
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212 """Add a button with the defined parameters.""" |
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213 button = Button('<img src="%s" class="richTextIcon" />' % |
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214 composition.RICH_BUTTONS[key]["icon"]) |
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215 button.setTitle(composition.RICH_BUTTONS[key]["tip"]) |
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216 button.addStyleName('richTextToolButton') |
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217 self.toolbar.add(button) |
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218 |
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219 def buttonCb(): |
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220 """Generic callback for a toolbar button.""" |
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221 text = self.textarea.getText() |
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222 cursor_pos = self.textarea.getCursorPos() |
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223 selection_length = self.textarea.getSelectionLength() |
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224 data = composition.RICH_SYNTAXES[syntax][key] |
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225 if selection_length == 0: |
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226 middle_text = data[1] |
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227 else: |
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228 middle_text = text[cursor_pos:cursor_pos + selection_length] |
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229 self.textarea.setText(text[:cursor_pos] |
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230 + data[0] |
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231 + middle_text |
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232 + data[2] |
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233 + text[cursor_pos + selection_length:]) |
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234 self.textarea.setCursorPos(cursor_pos + len(data[0]) + len(middle_text)) |
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235 self.textarea.setFocus(True) |
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236 self.textarea.onKeyDown() |
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237 |
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238 def wysiwygCb(): |
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239 """Callback for a toolbar button while wysiwyg mode is enabled.""" |
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240 data = composition.COMMANDS[key] |
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241 |
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242 def execCommand(command, arg): |
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243 self.display.setFocus(True) |
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244 doc().execCommand(command, False, arg.strip() if arg else '') |
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245 # use Window.prompt instead of dialog.PromptDialog to not loose the focus |
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246 prompt = lambda command, text: execCommand(command, Window.prompt(text)) |
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247 if isinstance(data, tuple) or isinstance(data, list): |
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248 if data[1]: |
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249 prompt(data[0], data[1]) |
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250 else: |
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251 execCommand(data[0], data[2]) |
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252 else: |
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253 execCommand(data, False, '') |
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254 self.textarea.onKeyDown() |
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255 |
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256 button.addClickListener(lambda: wysiwygCb() if self.wysiwyg else buttonCb()) |
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257 |
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258 def getContent(self): |
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259 assert(hasattr(self, 'textarea')) |
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260 assert(hasattr(self, 'toolbar')) |
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261 if self.wysiwyg: |
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262 content = {'text': self.display.getContent()['text'], 'syntax': C.SYNTAX_XHTML} |
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263 else: |
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264 content = {'text': self.strproc(self.textarea.getText()), 'syntax': self.toolbar.syntax} |
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265 if hasattr(self, 'title_panel'): |
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266 content.update({'title': self.strproc(self.title_panel.getText())}) |
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267 if hasattr(self, 'tags_panel'): |
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268 data_format.iter2dict('tag', self.tags_panel.getTags(), content) |
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269 return content |
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270 |
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271 def edit(self, edit=False, abort=False, sync=False): |
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272 """ |
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273 Remark: the editor must be visible before you call this method. |
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274 @param edit: set to True to edit the content or False to only display it |
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275 @param abort: set to True to cancel the edition and loose the changes. |
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276 If edit and abort are both True, self.abortEdition can be used to ask for a |
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277 confirmation. When edit is False and abort is True, abortion is actually done. |
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278 @param sync: set to True to cancel the edition after the content has been saved somewhere else |
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279 """ |
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280 if not (edit and abort): |
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281 self.refresh(edit) # not when we are asking for a confirmation |
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282 editor_widget.BaseTextEditor.edit(self, edit, abort, sync) # after the UI has been refreshed |
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283 if (edit and abort): |
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284 return # self.abortEdition is called by editor_widget.BaseTextEditor.edit |
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285 self.setWysiwyg(False, init=True) # after editor_widget.BaseTextEditor (it affects self.getContent) |
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286 if sync: |
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287 return |
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288 # the following must NOT be done at each UI refresh! |
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289 content = self._original_content |
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290 if edit: |
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291 def getParamCb(syntax): |
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292 # set the editable text in the current user-selected syntax |
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293 def syntaxConvertCb(text=None): |
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294 if text is not None: |
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295 # Important: this also update self._original_content |
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296 content.update({'text': text}) |
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297 content.update({'syntax': syntax}) |
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298 self.textarea.setText(content['text']) |
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299 |
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300 if hasattr(self, 'title_panel') and 'title' in content: |
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301 self.title_panel.setText(content['title']) |
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302 self.title_panel.setStackVisible(0, content['title'] != '') |
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303 |
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304 if hasattr(self, 'tags_panel'): |
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305 tags = list(data_format.dict2iter('tag', content)) |
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306 self.tags_panel.setTags(tags) |
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307 self.tags_panel.setStackVisible(0, len(tags) > 0) |
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308 |
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309 self.setToolBar(syntax) |
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310 if content['text'] and content['syntax'] != syntax: |
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311 self.host.bridge.call('syntaxConvert', syntaxConvertCb, content['text'], content['syntax']) |
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312 else: |
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313 syntaxConvertCb() |
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314 self.host.bridge.call('asyncGetParamA', getParamCb, composition.PARAM_NAME_SYNTAX, composition.PARAM_KEY_COMPOSITION) |
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315 else: |
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316 if not self.initialized: |
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317 # set the display text in XHTML only during init because a new MicroblogEntry instance is created after each modification |
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318 self.setDisplayContent() |
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319 self.display.edit(False) |
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320 |
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321 def setDisplayContent(self): |
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322 """Set the content of the editor_widget.HTMLTextEditor which is used for display/wysiwyg""" |
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323 content = self._original_content |
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324 text = content['text'] |
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325 if 'title' in content and content['title']: |
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326 title = '<h2>%s</h2>' % html_tools.html_sanitize(content['title']) |
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327 else: |
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328 title = "" |
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329 |
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330 tags = "" |
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331 for tag in data_format.dict2iter('tag', content): |
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332 tags += "<li><a>%s</a></li>" % html_tools.html_sanitize(tag) |
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333 if tags: |
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334 tags = '<ul class="mblog_tags">%s</ul>' % tags |
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335 |
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336 self.display.setContent({'text': "%s%s%s" % (title, tags, text)}) |
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337 |
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338 def setFocus(self, focus): |
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339 self.textarea.setFocus(focus) |
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340 |
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341 def abortEdition(self, content): |
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342 """Ask for confirmation before closing the dialog.""" |
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343 def confirm_cb(answer): |
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344 if answer: |
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345 self.edit(False, True) |
| 467 | 346 _dialog = dialog.ConfirmDialog(confirm_cb, text="Do you really want to %s?" % ("cancel your changes" if self.update_msg else "cancel this message")) |
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347 _dialog.cancel_button.setText(_("No")) |
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348 _dialog.show() |
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349 |
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350 |
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351 class EditTextArea(TextArea, KeyboardHandler): |
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352 def __init__(self, _parent): |
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353 TextArea.__init__(self) |
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354 self._parent = _parent |
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355 KeyboardHandler.__init__(self) |
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356 self.addKeyboardListener(self) |
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357 |
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358 def onKeyDown(self, sender=None, keycode=None, modifiers=None): |
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359 for listener in self._parent.edit_listeners: |
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360 listener(self, keycode, modifiers) # FIXME: edit_listeners must either be removed, or send an action instead of keycode/modifiers |