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# Copyright 2015 Canonical, Ltd. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as # published by the Free Software Foundation, either version 3 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 Affero General Public License for more details. # # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. """ View policy Contains some default key navigations """ from urwid import Overlay, WidgetWrap class BaseView(WidgetWrap): def show_overlay(self, overlay_widget, **kw): self.orig_w = self._w args = dict( align='center', width=('relative', 60), min_width=80, valign='middle', height='pack' ) args.update(kw) self._w = Overlay(top_w=overlay_widget, bottom_w=self._w, **args) def remove_overlay(self): self._w = self.orig_w self.orig_w = None def keypress(self, size, key): if key in ['ctrl x']: self.controller.signal.emit_signal('control-x-quit') return None key = super().keypress(size, key) if key == 'esc': self.controller.cancel() return None return key
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