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#!/usr/bin/env python
#
# Urwid terminal emulation widget example app
# Copyright (C) 2010 aszlig
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Urwid web site: https://urwid.org/
from __future__ import annotations
import typing
from contextlib import suppress
import urwid
def main() -> None:
urwid.set_encoding("utf8")
term = urwid.Terminal(None, encoding="utf-8")
size_widget = urwid.Text("")
mainframe = urwid.LineBox(
urwid.Pile(
[
(urwid.WEIGHT, 70, term),
(1, urwid.Filler(size_widget)),
(1, urwid.Filler(urwid.Edit("focus test edit: "))),
]
),
)
def set_title(widget, title: str) -> None:
mainframe.set_title(title)
def execute_quit(*args, **kwargs) -> typing.NoReturn:
raise urwid.ExitMainLoop()
def handle_key(key: str | tuple[str, int, int, int]) -> None:
if key in {"q", "Q"}:
execute_quit()
def handle_resize(widget, size: tuple[int, int]) -> None:
size_widget.set_text(f"Terminal size: [{size[0]}, {size[1]}]")
urwid.connect_signal(term, "title", set_title)
urwid.connect_signal(term, "closed", execute_quit)
with suppress(NameError):
urwid.connect_signal(term, "resize", handle_resize)
# if using a version of Urwid library where vterm doesn't support
# resize, don't register the signal handler.
try:
# create Screen with bracketed paste mode support enabled
bpm_screen = urwid.display.raw.Screen(bracketed_paste_mode=True) # pylint: disable=unexpected-keyword-arg
except TypeError:
# if using a version of Urwid library that doesn't support
# bracketed paste mode, do without it.
bpm_screen = urwid.display.raw.Screen()
loop = urwid.MainLoop(mainframe, handle_mouse=False, screen=bpm_screen, unhandled_input=handle_key)
term.main_loop = loop
loop.run()
if __name__ == "__main__":
main()
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