/usr/lib/python3/dist-packages/lightdm_gtk_greeter_settings/MultiheadSetupDialog.py is in lightdm-gtk-greeter-settings 1.2.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 | #!/usr/bin/env python3
# -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
# LightDM GTK Greeter Settings
# Copyright (C) 2014 Andrew P. <pan.pav.7c5@gmail.com>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
from collections import defaultdict
from gi.repository import (
Gdk,
Gtk)
import lightdm_gtk_greeter_settings.helpers
from lightdm_gtk_greeter_settings.helpers import (
check_path_accessibility,
get_data_path,
WidgetsEnum)
from gi.overrides import GLib
__all__ = ['MultiheadSetupDialog']
C_ = lambda t: lightdm_gtk_greeter_settings.helpers.C_('option|multihead', t)
class MultiheadSetupDialog(Gtk.Dialog):
__gtype_name__ = 'MultiheadSetupDialog'
def __new__(cls, monitors):
builder = Gtk.Builder()
builder.add_from_file(get_data_path('%s.ui' % cls.__gtype_name__))
window = builder.get_object('multihead_setup_dialog')
window.builder = builder
window.monitors = monitors
builder.connect_signals(window)
window.init_window()
return window
class Widgets(WidgetsEnum):
notebook = 'monitors_notebook'
available_menu = 'available_menu'
name = 'name_value'
name_combo = 'name_combo'
editor = 'editor_page'
editor_add_button = 'editor_add_button'
editor_add_menu_button = 'editor_add_menu_button'
empty = 'empty_page'
empty_add_button = 'empty_add_button'
empty_add_menu_button = 'empty_add_menu_button'
class PageData:
group = None
holder = None
label = None
ids = None
# Entries
name = None
background = None
builder = None
monitors = None
def init_window(self):
self._widgets = self.Widgets(builder=self.builder)
# To set size of widgets.notebook to size of widgets.editor
self.realize()
self._widgets.notebook.remove_page(self._widgets.notebook.page_num(self._widgets.editor))
self._current_page = None
self._defaults = {}
self._page_to_data = {}
screen = Gdk.Screen.get_default()
self._available_monitors = [(screen.get_monitor_plug_name(i),
Gtk.MenuItem(screen.get_monitor_plug_name(i)))
for i in range(screen.get_n_monitors())]
menu_header = Gtk.MenuItem(C_('Detected monitors:'))
menu_header.set_sensitive(False)
self._widgets.available_menu.append(menu_header)
self._widgets.available_menu.append(Gtk.SeparatorMenuItem())
self._widgets.available_menu.show_all()
for name, item in self._available_monitors:
self._widgets.available_menu.append(item)
item.connect('activate', self.on_add_button_clicked, name)
def run(self):
editor_parent = self._widgets.editor.get_parent()
if editor_parent:
editor_parent.remove(self._widgets.editor)
self._widgets.notebook.handler_block_by_func(self.on_switch_page)
for page in self._widgets.notebook.get_children():
if page != self._widgets.empty:
self._widgets.notebook.remove_page(self._widgets.notebook.page_num(page))
self._widgets.notebook.handler_unblock_by_func(self.on_switch_page)
for data in self._page_to_data.values():
for entry, ids in data.ids.items():
for id_ in ids:
entry.disconnect(id_)
self._page_to_data.clear()
for group in self.monitors.groups:
self._add_page(group)
self._widgets.empty.props.visible = not self._page_to_data
self._update_monitors_list()
super().run()
def _add_page(self, group):
data = self.PageData()
data.group = group
data.holder = Gtk.Box()
data.holder.show()
data.label = Gtk.Label(group.entries['name'].value)
close_button = Gtk.Button()
close_button.set_focus_on_click(False)
close_button.set_relief(Gtk.ReliefStyle.NONE)
close_button.connect('clicked', lambda w, p: self._remove_page(p), data.holder)
close_image = Gtk.Image.new_from_icon_name('stock_close', Gtk.IconSize.INVALID)
close_image.set_pixel_size(16)
close_button.add(close_image)
label_box = Gtk.Box(Gtk.Orientation.HORIZONTAL)
label_box.pack_start(data.label, False, False, 3)
label_box.pack_start(close_button, False, False, 0)
label_eventbox = Gtk.EventBox()
label_eventbox.add(label_box)
label_eventbox.show_all()
data.name = group.entries['name']
data.background = group.entries['background']
data.ids = defaultdict(list)
data.ids[data.name].append(data.name.changed.connect(self._on_name_changed, data))
data.ids[data.background].append(
data.background.changed.connect(self._on_background_changed, data))
self._on_name_changed(data.name, data)
self._on_background_changed(data.background, data)
self._page_to_data[data.holder] = data
if self._widgets.empty.get_parent():
self._widgets.empty.hide()
current_idx = self._widgets.notebook.get_current_page()
current_idx = self._widgets.notebook.insert_page(data.holder, label_eventbox,
current_idx + 1)
return current_idx
def _remove_page(self, page):
if page == self._widgets.editor.props.parent:
page.remove(self._widgets.editor)
self._widgets.notebook.remove_page(self._widgets.notebook.page_num(page))
del self.monitors.groups[self._page_to_data[page].group]
del self._page_to_data[page]
self._update_monitors_list()
if not self._page_to_data:
self._widgets.empty.show()
def _update_monitors_list(self):
configs = set(group.entries['name'].value for group in self.monitors.groups)
used_count = 0
self._widgets.name_combo.get_model().clear()
for name, item in self._available_monitors:
used = name in configs
if used:
used_count += 1
item.props.visible = not used
if not used:
self._widgets.name_combo.append_text(name)
show_button = used_count < len(self._available_monitors)
self._widgets.name_combo.props.button_sensitivity = (Gtk.SensitivityType.ON if show_button
else Gtk.SensitivityType.OFF)
self._widgets.editor_add_menu_button.props.visible = show_button
self._widgets.empty_add_menu_button.props.visible = show_button
def _on_name_changed(self, entry, data):
value = entry.value
markup = None
error = None
if not value:
markup = C_('<i>No name</i>')
error = C_('The name can\'t be empty. Configuration will not be saved.')
elif any(data.name != entry and data.name.value == value
for data in self._page_to_data.values()):
error = (C_('"{name}" is already defined. Only last configuration will be saved.')
.format(name=value))
if markup:
data.label.set_markup(markup)
else:
data.label.set_label(value)
data.name.error = error
self._update_monitors_list()
def _on_background_changed(self, entry, data):
value = entry.value
if not value or Gdk.RGBA().parse(value):
entry.error = None
else:
entry.error = check_path_accessibility(value)
def _focus_name_entry(self):
self._widgets.name.grab_focus()
self._widgets.name.set_position(0)
def on_add_button_clicked(self, widget, name=''):
group = self.monitors.groups.add(name)
page_idx = self._add_page(group)
self._widgets.empty.props.visible = not self._page_to_data
self._widgets.notebook.set_current_page(page_idx)
if name:
self._update_monitors_list()
def on_switch_page(self, notebook, page, page_idx):
if page == self._widgets.empty:
buttons = self._widgets.editor_add_menu_button, self._widgets.empty_add_menu_button
else:
buttons = self._widgets.empty_add_menu_button, self._widgets.editor_add_menu_button
old_parent = self._widgets.editor.get_parent()
if old_parent:
old_parent.remove(self._widgets.editor)
page.add(self._widgets.editor)
data = self._page_to_data[page]
for key, *__ in self.monitors.EntriesSetup:
self.monitors.activate(key, data.group.entries[key])
GLib.idle_add(self._focus_name_entry)
buttons[0].props.popup = None
buttons[1].props.popup = self._widgets.available_menu
|