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enginedialog.py
# vim:set et sts=4 sw=4: # -*- coding: utf-8 -*- # # ibus - The Input Bus # # Copyright (c) 2015 Peng Huang <shawn.p.huang@gmail.com> # Copyright (c) 2015-2019 Takao Fujiwara <takao.fujiwara1@gmail.com> # Copyright (c) 2013-2015 Red Hat, Inc. # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; either version 2 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see <http://www.gnu.org/licenses/>. # This file is ported from # gnome-control-center/panels/region/cc-input-chooser.c from gi.repository import Gtk from gi.repository import GLib from gi.repository import IBus import functools import gettext import i18n import locale from icon import load_icon from i18n import _, N_ ROW_TRAVEL_DIRECTION_NONE, \ ROW_TRAVEL_DIRECTION_FORWARD, \ ROW_TRAVEL_DIRECTION_BACKWARD = list(range(3)) class EngineDialog(Gtk.Dialog): __gtype_name__ = 'EngineDialog' __initial_languages = [ IBus.get_language_name('en_US'), IBus.get_language_name('en_GB'), IBus.get_language_name('de_DE'), IBus.get_language_name('fr_FR'), IBus.get_language_name('es_ES'), IBus.get_language_name('zh_CN'), IBus.get_language_name('ja_JP'), IBus.get_language_name('ru_RU'), IBus.get_language_name('ar_EG') ] def __init__(self, transient_for = None): super(EngineDialog, self).__init__( title = _("Select an input method"), transient_for = transient_for, resizable = True) buttons = (_("_Cancel"), Gtk.ResponseType.CANCEL, _("_Add"), Gtk.ResponseType.APPLY) self.add_buttons(*buttons) self.set_response_sensitive(Gtk.ResponseType.APPLY, False) self.__engines_for_lang = {} self.__untrans_for_lang = {} self.__langs = {} self.__scrolled = Gtk.ScrolledWindow( hscrollbar_policy = Gtk.PolicyType.NEVER, vscrollbar_policy = Gtk.PolicyType.NEVER, shadow_type = Gtk.ShadowType.IN, margin_start = 6, margin_end = 6, margin_top = 6, margin_bottom = 6) self.vbox.add(self.__scrolled) viewport = Gtk.Viewport() self.__scrolled.add(viewport) self.__list = Gtk.ListBox(vexpand = True, halign = Gtk.Align.FILL, valign = Gtk.Align.FILL) viewport.add(self.__list) self.__adjustment = self.__scrolled.get_vadjustment() self.__list.set_adjustment(self.__adjustment) self.__list.set_filter_func(self.__list_filter, None) self.__list.connect('row-activated', self.__row_activated) self.__list.connect('row-selected', self.__row_selected) self.__showing_extra = False self.__more_row = self.__more_row_new() self.__filter_timeout_id = 0 self.__filter_word = None self.__filter_entry = Gtk.SearchEntry(hexpand = True, margin_start = 6, margin_end = 6, margin_top = 6, margin_bottom = 6) self.__filter_entry.set_no_show_all(True) self.__filter_entry.connect('search-changed', self.__filter_changed) self.vbox.add(self.__filter_entry) self.show_all() def __list_filter(self, row, data): if row == self.__more_row: return not self.__showing_extra if not self.__showing_extra and row.is_extra: return False if self.__filter_word == None: return True name = row.name.lower() untrans = row.untrans.lower() if self.__filter_word != None: word = self.__filter_word.lower() if name.startswith(word): return True if untrans.startswith(word): return True return False def __row_activated(self, box, row): if row == self.__more_row: self.__show_more() return if row.back: self.__filter_entry.set_text('') self.__show_lang_rows() return if row.lang_info: self.__filter_entry.set_text('') self.__show_engines_for_lang(row) return def __row_selected(self, box, row): self.set_response_sensitive(Gtk.ResponseType.APPLY, row != None) def __padded_label_new(self, text, icon, alignment, direction): hbox = Gtk.Box(orientation = Gtk.Orientation.HORIZONTAL) if direction == ROW_TRAVEL_DIRECTION_BACKWARD: rtl = (Gtk.Widget.get_default_direction() == \ Gtk.TextDirection.RTL) if rtl: arrow = Gtk.Image.new_from_icon_name( 'go-previous-rtl-symbolic', Gtk.IconSize.MENU) else: arrow = Gtk.Image.new_from_icon_name( 'go-previous-symbolic', Gtk.IconSize.MENU) hbox.pack_start(arrow, False, True, 0) if icon != None: pixbuf = load_icon(icon, Gtk.IconSize.LARGE_TOOLBAR) image = Gtk.Image(pixbuf = pixbuf) hbox.pack_start(image, False, True, 0) label = Gtk.Label(label = text) label.set_halign(alignment) label.set_valign(Gtk.Align.CENTER) label.set_margin_start(20) label.set_margin_end(20) label.set_margin_top(6) label.set_margin_bottom(6) hbox.pack_start(label, True, True, 0) return hbox def __list_box_row_new(self, text): row = Gtk.ListBoxRow() row.name = text row.is_extra = False row.lang_info = False row.back = False row.untrans = '' row.engine = None return row def __lang_row_new(self, text): row = self.__list_box_row_new(text) row.lang_info = True if len(self.__untrans_for_lang) != 0: row.untrans = self.__untrans_for_lang[text] if not self.__showing_extra and text not in self.__initial_languages: row.is_extra = True widget = self.__padded_label_new(text, None, Gtk.Align.CENTER, ROW_TRAVEL_DIRECTION_NONE) row.add(widget) return row def __more_row_new(self): row = Gtk.ListBoxRow() hbox = Gtk.Box(orientation = Gtk.Orientation.HORIZONTAL) row.add(hbox) row.set_tooltip_text(_("More…")) arrow = Gtk.Image.new_from_icon_name('view-more-symbolic', Gtk.IconSize.MENU) arrow.set_margin_start(20) arrow.set_margin_end(20) arrow.set_margin_top(6) arrow.set_margin_bottom(6) arrow.set_halign(Gtk.Align.CENTER) arrow.set_valign(Gtk.Align.CENTER) hbox.pack_start(arrow, True, True, 0) return row def __back_row_new(self, text): row = self.__list_box_row_new(text) row.lang_info = True row.back = True widget = self.__padded_label_new(text, None, Gtk.Align.CENTER, ROW_TRAVEL_DIRECTION_BACKWARD) row.add(widget) return row def __engine_row_new(self, engine): longname = i18n.gettext_engine_longname(engine) description = i18n.gettext_engine_description(engine) row = self.__list_box_row_new(longname) row.untrans = engine.get_longname() row.set_tooltip_text(description) row.engine = engine widget = self.__padded_label_new(longname, engine.get_icon(), Gtk.Align.START, ROW_TRAVEL_DIRECTION_NONE) row.add(widget) return row def __set_fixed_size(self): if self.__scrolled.get_policy()[0] == Gtk.PolicyType.AUTOMATIC: return (width, height) = self.get_size() self.set_size_request(width, height) self.__scrolled.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC) def __remove_all_children(self): for l in self.__list.get_children(): self.__list.remove(l) def __add_engine_rows_for_lang(self, row): lang = row.name def cmp_engine(a, b): if a.get_rank() == b.get_rank(): a_longname = i18n.gettext_engine_longname(a) b_longname = i18n.gettext_engine_longname(b) return locale.strcoll(a_longname, b_longname) return int(b.get_rank() - a.get_rank()) self.__engines_for_lang[lang].sort( key = functools.cmp_to_key(cmp_engine)) for e in self.__engines_for_lang[lang]: row = self.__engine_row_new(e) self.__list.add(row) def __show_lang_rows(self): self.__remove_all_children() for lang in self.__langs: row = self.__lang_row_new(lang) self.__list.add(row) self.__list.add(self.__more_row) self.__list.show_all() self.__adjustment.set_value(self.__adjustment.get_lower()) self.__list.invalidate_filter() self.__list.set_selection_mode(Gtk.SelectionMode.SINGLE) def __show_more(self): self.__set_fixed_size() self.__filter_entry.show() self.__showing_extra = True self.__list.invalidate_filter() def __show_engines_for_lang(self, row): text = row.name self.__set_fixed_size() self.__remove_all_children() row = self.__back_row_new(text) self.__list.add(row) self.__add_engine_rows_for_lang(row) self.__list.show_all() self.__adjustment.set_value(self.__adjustment.get_lower()) def __do_filter(self): text = self.__filter_entry.get_text() if text == '': self.__filter_word = None else: self.__filter_word = text self.__list.invalidate_filter() self.__filter_timeout_id = 0 return False def __filter_changed(self, entry): if self.__filter_timeout_id == 0: self.__filter_timeout_id = GLib.timeout_add(150, self.__do_filter) def set_engines(self, engines): self.__engines_for_lang = {} self.__untrans_for_lang = {} for e in engines: l = IBus.get_language_name(e.get_language()) if l == None: l = '' if l not in self.__engines_for_lang: self.__engines_for_lang[l] = [] i18n.init_textdomain(e.get_textdomain()) self.__engines_for_lang[l].append(e) # Retrieve Untranslated language names. untrans = IBus.get_untranslated_language_name(e.get_language()) if untrans == None: untrans = '' self.__untrans_for_lang[l] = untrans keys = list(self.__engines_for_lang.keys()) keys.sort(key=functools.cmp_to_key(locale.strcoll)) loc = locale.getlocale()[0] # None on C locale if loc == None or loc == 'C': loc = 'en_US' current_lang = IBus.get_language_name(loc) # move current language to the first place if current_lang in keys: keys.remove(current_lang) keys.insert(0, current_lang) # move English to the second place en_lang = IBus.get_language_name('en_US') if en_lang != current_lang and en_lang in keys: keys.remove(en_lang) keys.insert(1, en_lang) #add 'Others' to the end of the combo box if IBus.get_language_name('Other') in keys: keys.remove(IBus.get_language_name('Other')) keys += [IBus.get_language_name('Other')] self.__langs = keys self.__show_lang_rows() def get_selected_engine(self): row = self.__list.get_selected_row() if row == None: return None return row.engine