#!/usr/bin/python # # The Qubes OS Project, https://www.qubes-os.org/ # # Copyright (C) 2017 boring-stuff # # 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, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. # import gi import itertools gi.require_version('Gtk', '3.0') from gi.repository import Gtk, Gdk, GdkPixbuf, GObject, GLib from qubespolicy.utils import sanitize_domain_name class GtkIconGetter: def __init__(self, size): self._icons = {} self._size = size self._theme = Gtk.IconTheme.get_default() def get_icon(self, name): if name not in self._icons: try: icon = self._theme.load_icon(name, self._size, 0) except GLib.Error: icon = self._theme.load_icon("edit-find", self._size, 0) self._icons[name] = icon return self._icons[name] class VMListModeler: def __init__(self, domains_info=None): self._icon_getter = GtkIconGetter(16) self._entries = {} self._domains_info = domains_info self._create_entries() def _create_entries(self): for name, vm in self._domains_info.items(): if name.startswith('$dispvm:'): vm_name = name[len('$dispvm:'):] dispvm = True else: vm_name = name dispvm = False sanitize_domain_name(vm_name, assert_sanitized=True) icon = self._icon_getter.get_icon(vm.get('icon', None)) if dispvm: display_name = 'Disposable VM ({})'.format(vm_name) else: display_name = vm_name self._entries[display_name] = { 'api_name': name, 'icon': icon, 'vm': vm} def _get_valid_qube_name(self, combo, entry_box, whitelist): name = None if combo and combo.get_active_id(): selected = combo.get_active_id() if selected in self._entries and \ self._entries[selected]['api_name'] in whitelist: name = selected if not name and entry_box: typed = entry_box.get_text() if typed in self._entries and \ self._entries[typed]['api_name'] in whitelist: name = typed return name def _combo_change(self, selection_trigger, combo, entry_box, whitelist): data = None name = self._get_valid_qube_name(combo, entry_box, whitelist) if name: entry = self._entries[name] data = entry['api_name'] if entry_box: entry_box.set_icon_from_pixbuf( Gtk.EntryIconPosition.PRIMARY, entry['icon']) else: if entry_box: entry_box.set_icon_from_stock( Gtk.EntryIconPosition.PRIMARY, "gtk-find") if selection_trigger: selection_trigger(data) def _entry_activate(self, activation_trigger, combo, entry_box, whitelist): name = self._get_valid_qube_name(combo, entry_box, whitelist) if name: activation_trigger(entry_box) def apply_model(self, destination_object, vm_list, selection_trigger=None, activation_trigger=None): if isinstance(destination_object, Gtk.ComboBox): list_store = Gtk.ListStore(int, str, GdkPixbuf.Pixbuf) for entry_no, display_name in zip(itertools.count(), sorted(self._entries.keys())): entry = self._entries[display_name] if entry['api_name'] in vm_list: list_store.append([entry_no, display_name, entry['icon']]) destination_object.set_model(list_store) destination_object.set_id_column(1) icon_column = Gtk.CellRendererPixbuf() destination_object.pack_start(icon_column, False) destination_object.add_attribute(icon_column, "pixbuf", 2) destination_object.set_entry_text_column(1) if destination_object.get_has_entry(): entry_box = destination_object.get_child() area = Gtk.CellAreaBox() area.pack_start(icon_column, False, False, False) area.add_attribute(icon_column, "pixbuf", 2) completion = Gtk.EntryCompletion.new_with_area(area) completion.set_inline_selection(True) completion.set_inline_completion(True) completion.set_popup_completion(True) completion.set_popup_single_match(False) completion.set_model(list_store) completion.set_text_column(1) entry_box.set_completion(completion) if activation_trigger: entry_box.connect("activate", lambda entry: self._entry_activate( activation_trigger, destination_object, entry, vm_list)) # A Combo with an entry has a text column already text_column = destination_object.get_cells()[0] destination_object.reorder(text_column, 1) else: entry_box = None text_column = Gtk.CellRendererText() destination_object.pack_start(text_column, False) destination_object.add_attribute(text_column, "text", 1) changed_function = lambda combo: self._combo_change( selection_trigger, combo, entry_box, vm_list) destination_object.connect("changed", changed_function) changed_function(destination_object) else: raise TypeError( "Only expecting Gtk.ComboBox objects to want our model.") def apply_icon(self, entry, qube_name): if isinstance(entry, Gtk.Entry): if qube_name in self._entries: entry.set_icon_from_pixbuf( Gtk.EntryIconPosition.PRIMARY, self._entries[qube_name]['icon']) else: raise ValueError("The specified source qube does not exist!") else: raise TypeError( "Only expecting Gtk.Entry objects to want our icon.") class GtkOneTimerHelper: def __init__(self, wait_seconds): self._wait_seconds = wait_seconds self._current_timer_id = 0 self._timer_completed = False def _invalidate_timer_completed(self): self._timer_completed = False def _invalidate_current_timer(self): self._current_timer_id += 1 def _timer_check_run(self, timer_id): if self._current_timer_id == timer_id: self._timer_run(timer_id) self._timer_completed = True else: pass def _timer_run(self, timer_id): raise NotImplementedError("Not yet implemented") def _timer_schedule(self): self._invalidate_current_timer() GObject.timeout_add(int(round(self._wait_seconds * 1000)), self._timer_check_run, self._current_timer_id) def _timer_has_completed(self): return self._timer_completed class FocusStealingHelper(GtkOneTimerHelper): def __init__(self, window, target_button, wait_seconds=1): GtkOneTimerHelper.__init__(self, wait_seconds) self._window = window self._target_button = target_button self._window.connect("window-state-event", self._window_state_event) self._target_sensitivity = False self._target_button.set_sensitive(self._target_sensitivity) def _window_changed_focus(self, window_is_focused): self._target_button.set_sensitive(False) self._invalidate_timer_completed() if window_is_focused: self._timer_schedule() else: self._invalidate_current_timer() def _window_state_event(self, window, event): assert window == self._window, \ 'Window state callback called with wrong window' changed_focus = event.changed_mask & Gdk.WindowState.FOCUSED window_focus = event.new_window_state & Gdk.WindowState.FOCUSED if changed_focus: self._window_changed_focus(window_focus != 0) # Propagate event further return False def _timer_run(self, timer_id): self._target_button.set_sensitive(self._target_sensitivity) def request_sensitivity(self, sensitivity): if self._timer_has_completed() or not sensitivity: self._target_button.set_sensitive(sensitivity) self._target_sensitivity = sensitivity def can_perform_action(self): return self._timer_has_completed()