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Copy pathwidgets.py
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184 lines (153 loc) · 5.71 KB
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# Copyright (c) 2016-2023 Hugo Osvaldo Barrera
# Copyright (c) 2013-2016 Christian Geier et al.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
from __future__ import annotations
import re
from typing import Callable
import click
import urwid
class ExtendedEdit(urwid.Edit):
"""A text editing widget supporting some more editing commands"""
HELP = (
("Ctrl-W", "Delete word"),
("Ctrl-U", "Delete until beginning of line"),
("Ctrl-K", "Delete until end of line"),
("Ctrl-A", "Go to beginning of line"),
("Ctrl-E", "Go to end of line"),
("Ctrl-D", "Delete forward letter"),
("Ctrl-O", "Edit in $EDITOR"),
)
def __init__(self, parent: urwid.Widget, *a, **kw) -> None:
self._parent = parent
super().__init__(*a, **kw)
def keypress(
self,
size: tuple[int, int] | tuple[int] | tuple[()],
key: str,
) -> None:
if key == "ctrl w":
self._delete_word()
elif key == "ctrl u":
self._delete_till_beginning_of_line()
elif key == "ctrl k":
self._delete_till_end_of_line()
elif key == "ctrl a":
self._goto_beginning_of_line()
elif key == "ctrl e":
self._goto_end_of_line()
elif key == "ctrl d":
self._delete_forward_letter()
elif key == "ctrl o":
# Allow editing in $EDITOR
self._editor()
# TODO: alt b, alt f
else:
return super().keypress(size, key)
return None
def _delete_forward_letter(self) -> None:
text = self.get_edit_text()
pos = self.edit_pos
text = text[:pos] + text[pos + 1 :]
self.set_edit_text(text)
def _delete_word(self) -> None:
"""delete word before cursor"""
text = self.get_edit_text()
t = text[: self.edit_pos].rstrip()
words = re.findall(r"[\w]+|[^\w\s]", t, re.UNICODE)
f_text = t if t == "" else t[: len(t) - len(words[-1])]
self.set_edit_text(f_text + text[self.edit_pos :])
self.set_edit_pos(len(f_text))
def _delete_till_beginning_of_line(self) -> None:
"""delete till start of line before cursor"""
text = self.get_edit_text()
sol = text.rfind("\n", 0, self.edit_pos) + 1
before_line = text[:sol]
self.set_edit_text(before_line + text[self.edit_pos :])
self.set_edit_pos(sol)
def _delete_till_end_of_line(self) -> None:
"""delete till end of line before cursor"""
text = self.get_edit_text()
eol = text.find("\n", self.edit_pos)
after_eol = "" if eol == -1 else text[eol:]
self.set_edit_text(text[: self.edit_pos] + after_eol)
def _goto_beginning_of_line(self) -> None:
text = self.get_edit_text()
sol = text.rfind("\n", 0, self.edit_pos) + 1
self.set_edit_pos(sol)
def _goto_end_of_line(self) -> None:
text = self.get_edit_text()
eol = text.find("\n", self.edit_pos)
if eol == -1:
eol = len(text)
self.set_edit_pos(eol)
def _editor(self) -> None:
self._parent._loop.screen.clear()
new_text = click.edit(self.get_edit_text())
if new_text is not None:
self.set_edit_text(new_text.strip())
class PrioritySelector(urwid.Button):
HELP = (
("left", "Lower Priority"),
("right", "Higher Priority"),
)
RANGES = (
[0],
[9, 8, 7, 6],
[5],
[1, 2, 3, 4],
)
def __init__(
self,
parent: urwid.Widget,
priority: int | None,
formatter_function: Callable[[int | None], str],
) -> None:
self._parent = parent
self._label = urwid.SelectableIcon("", 0)
urwid.WidgetWrap.__init__(self, self._label)
self._priority = priority
self._formatter = formatter_function
self._set_label()
def _set_label(self) -> None:
self.set_label(self._formatter(self._priority))
def _update_label(self, delta: int = 0) -> None:
for i, r in enumerate(PrioritySelector.RANGES):
if self._priority in r:
self._priority = PrioritySelector.RANGES[
(i + delta) % len(PrioritySelector.RANGES)
][0]
self._set_label()
return
def keypress(
self,
size: tuple[int, int] | tuple[int] | tuple[()],
key: str,
) -> None:
if key in ["right", "enter"]:
self._update_label(1)
return None
if key == "left":
self._update_label(-1)
return None
return super().keypress(size, key)
@property
def priority(self) -> int | None:
return self._priority