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#!/usr/bin/env python
#
# Urwid keyboard input test app
# Copyright (C) 2004-2009 Ian Ward
#
# 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/
"""
Keyboard test application
"""
from __future__ import annotations
import argparse
import logging
import urwid
if urwid.display.web.is_web_request():
Screen = urwid.display.web.Screen
loop_cls = urwid.SelectEventLoop
else:
event_loops: dict[str, type[urwid.EventLoop] | None] = {
"none": None,
"select": urwid.SelectEventLoop,
"asyncio": urwid.AsyncioEventLoop,
}
if hasattr(urwid, "TornadoEventLoop"):
event_loops["tornado"] = urwid.TornadoEventLoop
if hasattr(urwid, "GLibEventLoop"):
event_loops["glib"] = urwid.GLibEventLoop
if hasattr(urwid, "TwistedEventLoop"):
event_loops["twisted"] = urwid.TwistedEventLoop
if hasattr(urwid, "TrioEventLoop"):
event_loops["trio"] = urwid.TrioEventLoop
if hasattr(urwid, "ZMQEventLoop"):
event_loops["zmq"] = urwid.ZMQEventLoop
parser = argparse.ArgumentParser(description="Input test")
parser.add_argument(
"argc",
help="Positional arguments ('r' for raw display)",
metavar="<arguments>",
nargs="*",
default=(),
)
group = parser.add_argument_group("Advanced Options")
group.add_argument(
"--event-loop",
choices=event_loops,
default="none",
help="Event loop to use ('none' = use the default)",
)
group.add_argument("--debug-log", action="store_true", help="Enable debug logging")
args = parser.parse_args()
if not hasattr(urwid.display, "curses") or "r" in args.argc:
Screen = urwid.display.raw.Screen
else:
Screen = urwid.display.curses.Screen
loop_cls = event_loops[args.event_loop]
if args.debug_log:
logging.basicConfig(
level=logging.DEBUG,
filename="debug.log",
format=(
"%(levelname)1.1s %(asctime)s | %(threadName)s | %(name)s \n"
"\t%(message)s\n"
"-------------------------------------------------------------------------------"
),
datefmt="%d-%b-%Y %H:%M:%S",
force=True,
)
logging.captureWarnings(True)
def key_test():
screen = Screen()
header = urwid.AttrMap(
urwid.Text("Values from get_input(). Q exits."),
"header",
)
lw = urwid.SimpleListWalker([])
listbox = urwid.AttrMap(
urwid.ListBox(lw),
"listbox",
)
top = urwid.Frame(listbox, header)
def input_filter(keys, raw):
if "q" in keys or "Q" in keys:
raise urwid.ExitMainLoop
t = []
for k in keys:
if isinstance(k, tuple):
out = []
for v in k:
if out:
out += [", "]
out += [("key", repr(v))]
t += ["(", *out, ")"]
else:
t += ["'", ("key", k), "' "]
rawt = urwid.Text(", ".join(f"{r:d}" for r in raw))
if t:
lw.append(urwid.Columns([(urwid.WEIGHT, 2, urwid.Text(t)), rawt]))
listbox.original_widget.set_focus(len(lw) - 1, "above")
return keys
loop = urwid.MainLoop(
top,
[
("header", "black", "dark cyan", "standout"),
("key", "yellow", "dark blue", "bold"),
("listbox", "light gray", "black"),
],
screen,
input_filter=input_filter,
event_loop=loop_cls() if loop_cls is not None else None,
)
old = ()
try:
old = screen.tty_signal_keys("undefined", "undefined", "undefined", "undefined", "undefined")
loop.run()
finally:
if old:
screen.tty_signal_keys(*old)
def main():
urwid.display.web.set_preferences("Input Test")
if urwid.display.web.handle_short_request():
return
key_test()
if __name__ == "__main__" or urwid.display.web.is_web_request():
main()
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