One-KVM/kvmd/keyboard/printer.py
2020-05-23 11:57:19 +03:00

104 lines
3.3 KiB
Python

# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
# #
# 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 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 General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import string
from typing import Tuple
from typing import Generator
from .mappings import KEYMAP
# =====
_LOWER_CHARS = {
"\n": "Enter",
"\t": "Tab",
" ": "Space",
"`": "Backquote",
"\\": "Backslash",
"[": "BracketLeft",
"]": "BracketLeft",
",": "Comma",
".": "Period",
"-": "Minus",
"'": "Quote",
";": "Semicolon",
"/": "Slash",
"=": "Equal",
**{str(number): f"Digit{number}" for number in range(0, 10)},
**{ch: f"Key{ch.upper()}" for ch in string.ascii_lowercase},
}
assert not set(_LOWER_CHARS.values()).difference(KEYMAP)
_UPPER_CHARS = {
"~": "Backquote",
"|": "Backslash",
"{": "BracketLeft",
"}": "BracketRight",
"<": "Comma",
">": "Period",
"!": "Digit1",
"@": "Digit2",
"#": "Digit3",
"$": "Digit4",
"%": "Digit5",
"^": "Digit6",
"&": "Digit7",
"*": "Digit8",
"(": "Digit9",
")": "Digit0",
"_": "Minus",
"\"": "Quote",
":": "Semicolon",
"?": "Slash",
"+": "Equal",
**{ch: f"Key{ch}" for ch in string.ascii_uppercase},
}
assert not set(_UPPER_CHARS.values()).difference(KEYMAP)
# =====
def text_to_web_keys(text: str, shift_key: str="ShiftLeft") -> Generator[Tuple[str, bool], None, None]:
assert shift_key in ["ShiftLeft", "ShiftRight"]
shifted = False
for ch in text:
upper = False
key = _LOWER_CHARS.get(ch)
if key is None:
if (key := _UPPER_CHARS.get(ch)) is None:
continue
upper = True
if upper and not shifted:
yield (shift_key, True)
shifted = True
elif not upper and shifted:
yield (shift_key, False)
shifted = False
yield (key, True)
yield (key, False)
if shifted:
yield (shift_key, False)