src/dataforms_widget.py

   1 # -*- coding:utf-8 -*-
   2 ## src/dataforms_widget.py
   3 ##
   4 ## Copyright (C) 2003-2010 Yann Leboulanger <asterix AT lagaule.org>
   5 ## Copyright (C) 2006 Tomasz Melcer <liori AT exroot.org>
   6 ## Copyright (C) 2006-2007 Jean-Marie Traissard <jim AT lapin.org>
   7 ##
   8 ## This file is part of Gajim.
   9 ##
  10 ## Gajim is free software; you can redistribute it and/or modify
  11 ## it under the terms of the GNU General Public License as published
  12 ## by the Free Software Foundation; version 3 only.
  13 ##
  14 ## Gajim is distributed in the hope that it will be useful,
  15 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17 ## GNU General Public License for more details.
  18 ##
  19 ## You should have received a copy of the GNU General Public License
  20 ## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
  21 ##
  22
  23 ''' This module contains widget that can display data form (JEP-0004).
  24 Words single and multiple refers here to types of data forms:
  25 single means these with one record of data (without <reported/> element),
  26 multiple - these which may contain more data (with <reported/> element).'''
  27
  28 import gtk
  29 import gobject
  30 import base64
  31
  32 import gtkgui_helpers
  33 import dialogs
  34
  35 import common.dataforms as dataforms
  36 from common import helpers
  37
  38 import itertools
  39
  40 class DataFormWidget(gtk.Alignment, object):
  41 # "public" interface
  42     """
  43     Data Form widget. Use like any other widget
  44     """
  45
  46     __gsignals__ = dict(
  47         validated = (gobject.SIGNAL_RUN_LAST | gobject.SIGNAL_ACTION, None, ())
  48     )
  49
  50     def __init__(self, dataformnode=None):
  51         ''' Create a widget. '''
  52         gtk.Alignment.__init__(self, xscale=1.0, yscale=1.0)
  53
  54         self._data_form = None
  55
  56         self.xml = gtkgui_helpers.get_gtk_builder('data_form_window.ui',
  57                 'data_form_vbox')
  58         self.xml.connect_signals(self)
  59         for name in ('instructions_label', 'instructions_hseparator',
  60                         'single_form_viewport', 'data_form_types_notebook',
  61                         'single_form_scrolledwindow', 'multiple_form_hbox',
  62                         'records_treeview', 'buttons_vbox', 'add_button', 'remove_button',
  63                         'edit_button', 'up_button', 'down_button', 'clear_button'):
  64             self.__dict__[name] = self.xml.get_object(name)
  65
  66         self.add(self.xml.get_object('data_form_vbox'))
  67
  68         if dataformnode is not None:
  69             self.set_data_form(dataformnode)
  70
  71         selection = self.records_treeview.get_selection()
  72         selection.connect('changed', self.on_records_selection_changed)
  73         selection.set_mode(gtk.SELECTION_MULTIPLE)
  74
  75     def on_data_form_vbox_key_press_event(self, widget, event):
  76         print 'key pressed'
  77
  78     def set_data_form(self, dataform):
  79         """
  80         Set the data form (xmpp.DataForm) displayed in widget
  81         """
  82         assert isinstance(dataform, dataforms.DataForm)
  83
  84         self.del_data_form()
  85         self._data_form = dataform
  86         if isinstance(dataform, dataforms.SimpleDataForm):
  87             self.build_single_data_form()
  88         else:
  89             self.build_multiple_data_form()
  90
  91         # create appropriate description for instructions field if there isn't any
  92         if dataform.instructions == '':
  93             self.instructions_label.set_no_show_all(True)
  94             self.instructions_label.hide()
  95         else:
  96             self.instructions_label.set_text(dataform.instructions)
  97             gtkgui_helpers.label_set_autowrap(self.instructions_label)
  98
  99     def get_data_form(self):
 100         """
 101         Data form displayed in the widget or None if no form
 102         """
 103         return self._data_form
 104
 105     def del_data_form(self):
 106         self.clean_data_form()
 107         self._data_form = None
 108
 109     data_form = property(get_data_form, set_data_form, del_data_form,
 110             'Data form presented in a widget')
 111
 112     def get_title(self):
 113         """
 114         Get the title of data form, as a unicode object. If no title or no form,
 115         returns u''. Useful for setting window title
 116         """
 117         if self._data_form is not None:
 118             if self._data_form.title is not None:
 119                 return self._data_form.title
 120         return u''
 121
 122     title = property(get_title, None, None, 'Data form title')
 123
 124     def show(self):
 125         ''' Treat 'us' as one widget. '''
 126         self.show_all()
 127
 128 # "private" methods
 129
 130 # we have actually two different kinds of data forms: one is a simple form to fill,
 131 # second is a table with several records;
 132
 133     def empty_method(self):
 134         pass
 135
 136     def clean_data_form(self):
 137         """
 138         Remove data about existing form. This metod is empty, because it is
 139         rewritten by build_*_data_form, according to type of form which is
 140         actually displayed
 141         """
 142         pass
 143
 144     def build_single_data_form(self):
 145         '''Invoked when new single form is to be created.'''
 146         assert isinstance(self._data_form, dataforms.SimpleDataForm)
 147
 148         self.clean_data_form()
 149
 150         self.singleform = SingleForm(self._data_form)
 151         def _on_validated(widget):
 152             self.emit('validated')
 153         self.singleform.connect('validated', _on_validated)
 154         self.singleform.show()
 155         self.single_form_viewport.add(self.singleform)
 156         self.data_form_types_notebook.set_current_page(
 157                 self.data_form_types_notebook.page_num(
 158                         self.single_form_scrolledwindow))
 159
 160         self.clean_data_form = self.clean_single_data_form
 161
 162     def clean_single_data_form(self):
 163         """
 164         Called as clean_data_form, read the docs of clean_data_form(). Remove
 165         form from widget
 166         """
 167         self.singleform.destroy()
 168         self.clean_data_form = self.empty_method        # we won't call it twice
 169         del self.singleform
 170
 171     def build_multiple_data_form(self):
 172         """
 173         Invoked when new multiple form is to be created
 174         """
 175         assert isinstance(self._data_form, dataforms.MultipleDataForm)
 176
 177         self.clean_data_form()
 178
 179         # creating model for form...
 180         fieldtypes = []
 181         fieldvars = []
 182         for field in self._data_form.reported.iter_fields():
 183             # note: we store also text-private and hidden fields,
 184             # we just do not display them.
 185             # TODO: boolean fields
 186             #elif field.type=='boolean': fieldtypes.append(bool)
 187             fieldtypes.append(str)
 188             fieldvars.append(field.var)
 189
 190         self.multiplemodel = gtk.ListStore(*fieldtypes)
 191
 192         # moving all data to model
 193         for item in self._data_form.iter_records():
 194             iter_ = self.multiplemodel.append()
 195             for field in item.iter_fields():
 196                 self.multiplemodel.set_value(iter_, fieldvars.index(field.var),
 197                         field.value)
 198
 199         # constructing columns...
 200         for field, counter in zip(self._data_form.reported.iter_fields(),
 201         itertools.count()):
 202             self.records_treeview.append_column(
 203                     gtk.TreeViewColumn(field.label, gtk.CellRendererText(),
 204                             text=counter))
 205
 206         self.records_treeview.set_model(self.multiplemodel)
 207         self.records_treeview.show_all()
 208
 209         self.data_form_types_notebook.set_current_page(
 210                 self.data_form_types_notebook.page_num(
 211                         self.multiple_form_hbox))
 212
 213         self.clean_data_form = self.clean_multiple_data_form
 214
 215         readwrite = self._data_form.type != 'result'
 216         if not readwrite:
 217             self.buttons_vbox.set_no_show_all(True)
 218             self.buttons_vbox.hide()
 219         else:
 220             self.buttons_vbox.set_no_show_all(False)
 221             # refresh list look
 222             self.refresh_multiple_buttons()
 223
 224     def clean_multiple_data_form(self):
 225         """
 226         Called as clean_data_form, read the docs of clean_data_form(). Remove
 227         form from widget
 228         """
 229         self.clean_data_form = self.empty_method        # we won't call it twice
 230         del self.multiplemodel
 231
 232     def refresh_multiple_buttons(self):
 233         """
 234         Checks for treeview state and makes control buttons sensitive
 235         """
 236         selection = self.records_treeview.get_selection()
 237         model = self.records_treeview.get_model()
 238         count = selection.count_selected_rows()
 239         if count == 0:
 240             self.remove_button.set_sensitive(False)
 241             self.edit_button.set_sensitive(False)
 242             self.up_button.set_sensitive(False)
 243             self.down_button.set_sensitive(False)
 244         elif count == 1:
 245             self.remove_button.set_sensitive(True)
 246             self.edit_button.set_sensitive(True)
 247             _, (path,) = selection.get_selected_rows()
 248             iter_ = model.get_iter(path)
 249             if model.iter_next(iter_) is None:
 250                 self.up_button.set_sensitive(True)
 251                 self.down_button.set_sensitive(False)
 252             elif path == (0, ):
 253                 self.up_button.set_sensitive(False)
 254                 self.down_button.set_sensitive(True)
 255             else:
 256                 self.up_button.set_sensitive(True)
 257                 self.down_button.set_sensitive(True)
 258         else:
 259             self.remove_button.set_sensitive(True)
 260             self.edit_button.set_sensitive(True)
 261             self.up_button.set_sensitive(False)
 262             self.down_button.set_sensitive(False)
 263
 264         if len(model) == 0:
 265             self.clear_button.set_sensitive(False)
 266         else:
 267             self.clear_button.set_sensitive(True)
 268
 269     def on_clear_button_clicked(self, widget):
 270         self.records_treeview.get_model().clear()
 271
 272     def on_remove_button_clicked(self, widget):
 273         selection = self.records_treeview.get_selection()
 274         model, rowrefs = selection.get_selected_rows()
 275         # rowref is a list of paths
 276         for i in xrange(len(rowrefs)):
 277             rowrefs[i] = gtk.TreeRowReference(model, rowrefs[i])
 278         # rowref is a list of row references; need to convert because we will
 279         # modify the model, paths would change
 280         for rowref in rowrefs:
 281             del model[rowref.get_path()]
 282
 283     def on_up_button_clicked(self, widget):
 284         selection = self.records_treeview.get_selection()
 285         model, (path,) = selection.get_selected_rows()
 286         iter_ = model.get_iter(path)
 287         # constructing path for previous iter
 288         previter = model.get_iter((path[0]-1,))
 289         model.swap(iter_, previter)
 290
 291         self.refresh_multiple_buttons()
 292
 293     def on_down_button_clicked(self, widget):
 294         selection = self.records_treeview.get_selection()
 295         model, (path,) = selection.get_selected_rows()
 296         iter_ = model.get_iter(path)
 297         nextiter = model.iter_next(iter_)
 298         model.swap(iter_, nextiter)
 299
 300         self.refresh_multiple_buttons()
 301
 302     def on_records_selection_changed(self, widget):
 303         self.refresh_multiple_buttons()
 304
 305 class SingleForm(gtk.Table, object):
 306     """
 307     Widget that represent DATAFORM_SINGLE mode form. Because this is used not
 308     only to display single forms, but to form input windows of multiple-type
 309     forms, it is in another class
 310     """
 311
 312     __gsignals__ = dict(
 313         validated = (gobject.SIGNAL_RUN_LAST | gobject.SIGNAL_ACTION, None, ())
 314     )
 315
 316     def __init__(self, dataform):
 317         assert isinstance(dataform, dataforms.SimpleDataForm)
 318
 319         gtk.Table.__init__(self)
 320         self.set_col_spacings(12)
 321         self.set_row_spacings(6)
 322
 323         def decorate_with_tooltip(widget, field):
 324             """
 325             Adds a tooltip containing field's description to a widget.  Creates
 326             EventBox if widget doesn't have its own gdk window.  Returns decorated
 327             widget
 328             """
 329             if field.description != '':
 330                 if widget.flags() & gtk.NO_WINDOW:
 331                     evbox = gtk.EventBox()
 332                     evbox.add(widget)
 333                     widget = evbox
 334                 widget.set_tooltip_text(field.description)
 335             return widget
 336
 337         self._data_form = dataform
 338
 339         # building widget
 340         linecounter = 0
 341
 342         # is the form changeable?
 343         readwrite = dataform.type != 'result'
 344
 345         # for each field...
 346         for field in self._data_form.iter_fields():
 347             if field.type == 'hidden': continue
 348
 349             commonlabel = True
 350             commonlabelcenter = False
 351             commonwidget = True
 352             widget = None
 353
 354             if field.type == 'boolean':
 355                 commonlabelcenter = True
 356                 widget = gtk.CheckButton()
 357                 widget.connect('toggled', self.on_boolean_checkbutton_toggled,
 358                         field)
 359                 widget.set_active(field.value)
 360
 361             elif field.type == 'fixed':
 362                 leftattach = 1
 363                 rightattach = 2
 364                 if field.label is None:
 365                     commonlabel = False
 366                     leftattach = 0
 367
 368                 commonwidget = False
 369                 widget = gtk.Label(field.value)
 370                 widget.set_line_wrap(True)
 371                 self.attach(widget, leftattach, rightattach, linecounter,
 372                         linecounter+1, xoptions=gtk.FILL, yoptions=gtk.FILL)
 373
 374             elif field.type == 'list-single':
 375                 # TODO: What if we have radio buttons and non-required field?
 376                 # TODO: We cannot deactivate them all...
 377                 if len(field.options) < 6:
 378                     # 5 option max: show radiobutton
 379                     widget = gtk.VBox()
 380                     first_radio = None
 381                     for value, label in field.iter_options():
 382                         if not label:
 383                             label = value
 384                         radio = gtk.RadioButton(first_radio, label=label)
 385                         radio.connect('toggled',
 386                                 self.on_list_single_radiobutton_toggled, field, value)
 387                         if first_radio is None:
 388                             first_radio = radio
 389                             if field.value == '':   # TODO: is None when done
 390                                 field.value = value
 391                         if value == field.value:
 392                             radio.set_active(True)
 393                         widget.pack_start(radio, expand=False)
 394                 else:
 395                     # more than 5 options: show combobox
 396                     def on_list_single_combobox_changed(combobox, f):
 397                         iter_ = combobox.get_active_iter()
 398                         if iter_:
 399                             model = combobox.get_model()
 400                             f.value = model[iter_][1]
 401                         else:
 402                             f.value = ''
 403                     widget = gtkgui_helpers.create_combobox(field.options,
 404                             field.value)
 405                     widget.connect('changed', on_list_single_combobox_changed, field)
 406                 widget.set_sensitive(readwrite)
 407
 408             elif field.type == 'list-multi':
 409                 # TODO: When more than few choices, make a list
 410                 if len(field.options) < 6:
 411                     # 5 option max: show checkbutton
 412                     widget = gtk.VBox()
 413                     for value, label in field.iter_options():
 414                         check = gtk.CheckButton(label, use_underline=False)
 415                         check.set_active(value in field.values)
 416                         check.connect('toggled',
 417                                 self.on_list_multi_checkbutton_toggled, field, value)
 418                         widget.pack_start(check, expand=False)
 419                         widget.set_sensitive(readwrite)
 420                 else:
 421                     # more than 5 options: show combobox
 422                     def on_list_multi_treeview_changed(selection, f):
 423                         def for_selected(treemodel, path, iter):
 424                             vals.append(treemodel[iter][1])
 425                         vals = []
 426                         selection.selected_foreach(for_selected)
 427                         field.values = vals[:]
 428                     widget = gtk.ScrolledWindow()
 429                     widget.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 430                     tv = gtkgui_helpers.create_list_multi(field.options,
 431                             field.values)
 432                     widget.add(tv)
 433                     widget.set_size_request(-1, 120)
 434                     tv.get_selection().connect('changed',
 435                             on_list_multi_treeview_changed, field)
 436                     tv.set_sensitive(readwrite)
 437
 438             elif field.type == 'jid-single':
 439                 widget = gtk.Entry()
 440                 widget.connect('changed', self.on_text_single_entry_changed, field)
 441                 widget.set_text(field.value)
 442
 443             elif field.type == 'jid-multi':
 444                 commonwidget = False
 445
 446                 xml = gtkgui_helpers.get_gtk_builder('data_form_window.ui',
 447                     'multiple_form_hbox')
 448                 widget = xml.get_object('multiple_form_hbox')
 449                 treeview = xml.get_object('records_treeview')
 450
 451                 listmodel = gtk.ListStore(str)
 452                 for value in field.iter_values():
 453                     # nobody will create several megabytes long stanza
 454                     listmodel.insert(999999, (value,))
 455
 456                 treeview.set_model(listmodel)
 457
 458                 renderer = gtk.CellRendererText()
 459                 renderer.set_property('editable', True)
 460                 renderer.connect('edited',
 461                         self.on_jid_multi_cellrenderertext_edited, treeview, listmodel,
 462                         field)
 463
 464                 treeview.append_column(gtk.TreeViewColumn(None, renderer,
 465                         text=0))
 466
 467                 decorate_with_tooltip(treeview, field)
 468
 469                 add_button=xml.get_object('add_button')
 470                 add_button.connect('clicked',
 471                         self.on_jid_multi_add_button_clicked, treeview, listmodel, field)
 472                 edit_button=xml.get_object('edit_button')
 473                 edit_button.connect('clicked',
 474                         self.on_jid_multi_edit_button_clicked, treeview)
 475                 remove_button=xml.get_object('remove_button')
 476                 remove_button.connect('clicked',
 477                         self.on_jid_multi_remove_button_clicked, treeview, field)
 478                 clear_button=xml.get_object('clear_button')
 479                 clear_button.connect('clicked',
 480                         self.on_jid_multi_clean_button_clicked, listmodel, field)
 481                 if not readwrite:
 482                     add_button.set_no_show_all(True)
 483                     edit_button.set_no_show_all(True)
 484                     remove_button.set_no_show_all(True)
 485                     clear_button.set_no_show_all(True)
 486
 487                 widget.set_sensitive(readwrite)
 488                 self.attach(widget, 1, 2, linecounter, linecounter+1)
 489
 490                 del xml
 491
 492             elif field.type == 'text-private':
 493                 commonlabelcenter = True
 494                 widget = gtk.Entry()
 495                 widget.connect('changed', self.on_text_single_entry_changed, field)
 496                 widget.set_visibility(False)
 497                 widget.set_text(field.value)
 498
 499             elif field.type == 'text-multi':
 500                 # TODO: bigger text view
 501                 commonwidget = False
 502
 503                 textwidget = gtk.TextView()
 504                 textwidget.set_wrap_mode(gtk.WRAP_WORD)
 505                 textwidget.get_buffer().connect('changed',
 506                         self.on_text_multi_textbuffer_changed, field)
 507                 textwidget.get_buffer().set_text(field.value)
 508                 textwidget.set_sensitive(readwrite)
 509
 510                 widget = gtk.ScrolledWindow()
 511                 widget.add(textwidget)
 512
 513                 widget=decorate_with_tooltip(widget, field)
 514                 self.attach(widget, 1, 2, linecounter, linecounter+1)
 515
 516             else:
 517                 # field.type == 'text-single' or field.type is nonstandard:
 518                 # JEP says that if we don't understand some type, we
 519                 # should handle it as text-single
 520                 commonlabelcenter = True
 521                 if readwrite:
 522                     widget = gtk.Entry()
 523                     def kpe(widget, event):
 524                         if event.keyval == gtk.keysyms.Return or \
 525                         event.keyval == gtk.keysyms.KP_Enter:
 526                             self.emit('validated')
 527                     widget.connect('key-press-event', kpe)
 528                     widget.connect('changed', self.on_text_single_entry_changed,
 529                             field)
 530                     widget.set_sensitive(readwrite)
 531                     if field.value is None:
 532                         field.value = u''
 533                     widget.set_text(field.value)
 534                 else:
 535                     commonwidget=False
 536                     widget = gtk.Label(field.value)
 537                     widget.set_sensitive(True)
 538                     widget.set_alignment(0.0, 0.5)
 539                     widget=decorate_with_tooltip(widget, field)
 540                     self.attach(widget, 1, 2, linecounter, linecounter+1,
 541                             yoptions=gtk.FILL)
 542
 543             if commonlabel and field.label is not None:
 544                 label = gtk.Label(field.label)
 545                 if commonlabelcenter:
 546                     label.set_alignment(0.0, 0.5)
 547                 else:
 548                     label.set_alignment(0.0, 0.0)
 549                 label = decorate_with_tooltip(label, field)
 550                 self.attach(label, 0, 1, linecounter, linecounter+1,
 551                         xoptions=gtk.FILL, yoptions=gtk.FILL)
 552
 553             if field.media is not None:
 554                 for uri in field.media.uris:
 555                     if uri.type_.startswith('image/'):
 556                         try:
 557                             img_data = base64.decodestring(uri.uri_data)
 558                             pixbuf_l = gtk.gdk.PixbufLoader()
 559                             pixbuf_l.write(img_data)
 560                             pixbuf_l.close()
 561                             media = gtk.image_new_from_pixbuf(pixbuf_l.\
 562                                 get_pixbuf())
 563                         except Exception:
 564                             media = gtk.Label(_('Unable to load image'))
 565                     else:
 566                         media = gtk.Label(_('Media type not supported: %s') % \
 567                             uri.type_)
 568                     linecounter += 1
 569                     self.attach(media, 0, 1, linecounter, linecounter+1,
 570                         xoptions=gtk.FILL, yoptions=gtk.FILL)
 571
 572             if commonwidget:
 573                 assert widget is not None
 574                 widget.set_sensitive(readwrite)
 575                 widget = decorate_with_tooltip(widget, field)
 576                 self.attach(widget, 1, 2, linecounter, linecounter+1,
 577                         yoptions=gtk.FILL)
 578
 579             if field.required:
 580                 label = gtk.Label('*')
 581                 label.set_tooltip_text(_('This field is required'))
 582                 self.attach(label, 2, 3, linecounter, linecounter+1, xoptions=0,
 583                     yoptions=0)
 584
 585             linecounter+=1
 586         if self.get_property('visible'):
 587             self.show_all()
 588
 589     def show(self):
 590         # simulate that we are one widget
 591         self.show_all()
 592
 593     def on_boolean_checkbutton_toggled(self, widget, field):
 594         field.value = widget.get_active()
 595
 596     def on_list_single_radiobutton_toggled(self, widget, field, value):
 597         field.value = value
 598
 599     def on_list_multi_checkbutton_toggled(self, widget, field, value):
 600         # TODO: make some methods like add_value and remove_value
 601         if widget.get_active() and value not in field.values:
 602             field.values += [value]
 603         elif not widget.get_active() and value in field.values:
 604             field.values = [v for v in field.values if v!=value]
 605
 606     def on_text_single_entry_changed(self, widget, field):
 607         field.value = widget.get_text()
 608
 609     def on_text_multi_textbuffer_changed(self, widget, field):
 610         field.value = widget.get_text(
 611                 widget.get_start_iter(),
 612                 widget.get_end_iter())
 613
 614     def on_jid_multi_cellrenderertext_edited(self, cell, path, newtext, treeview,
 615     model, field):
 616         old = model[path][0]
 617         if old == newtext:
 618             return
 619         try:
 620             newtext = helpers.parse_jid(newtext)
 621         except helpers.InvalidFormat, s:
 622             dialogs.ErrorDialog(_('Invalid Jabber ID'), str(s))
 623             return
 624         if newtext in field.values:
 625             dialogs.ErrorDialog(
 626                     _('Jabber ID already in list'),
 627                     _('The Jabber ID you entered is already in the list. Choose another one.'))
 628             gobject.idle_add(treeview.set_cursor, path)
 629             return
 630         model[path][0]=newtext
 631
 632         values = field.values
 633         values[values.index(old)]=newtext
 634         field.values = values
 635
 636     def on_jid_multi_add_button_clicked(self, widget, treeview, model, field):
 637         #Default jid
 638         jid = _('new@jabber.id')
 639         if jid in field.values:
 640             i = 1
 641             while _('new%d@jabber.id') % i in field.values:
 642                 i += 1
 643             jid = _('new%d@jabber.id') % i
 644         iter_ = model.insert(999999, (jid,))
 645         treeview.set_cursor(model.get_path(iter_), treeview.get_column(0), True)
 646         field.values = field.values + [jid]
 647
 648     def on_jid_multi_edit_button_clicked(self, widget, treeview):
 649         model, iter_ = treeview.get_selection().get_selected()
 650         assert iter_ is not None
 651
 652         treeview.set_cursor(model.get_path(iter_), treeview.get_column(0), True)
 653
 654     def on_jid_multi_remove_button_clicked(self, widget, treeview, field):
 655         selection = treeview.get_selection()
 656         deleted = []
 657
 658         def remove(model, path, iter_, deleted):
 659             deleted+=model[iter_]
 660             model.remove(iter_)
 661
 662         selection.selected_foreach(remove, deleted)
 663         field.values = (v for v in field.values if v not in deleted)
 664
 665     def on_jid_multi_clean_button_clicked(self, widget, model, field):
 666         model.clear()
 667         del field.values