input-remapper/inputremapper/injection/mapping_handlers/null_handler.py
2023-02-27 17:07:42 +01:00

64 lines
2.0 KiB
Python

# -*- coding: utf-8 -*-
# input-remapper - GUI for device specific keyboard mappings
# Copyright (C) 2023 sezanzeb <proxima@sezanzeb.de>
#
# This file is part of input-remapper.
#
# input-remapper 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.
#
# input-remapper 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 input-remapper. If not, see <https://www.gnu.org/licenses/>.
from typing import Dict
import evdev
from inputremapper.configs.input_config import InputCombination
from inputremapper.injection.mapping_handlers.mapping_handler import (
MappingHandler,
HandlerEnums,
)
from inputremapper.input_event import InputEvent
class NullHandler(MappingHandler):
"""Handler which consumes the event and does nothing."""
def __str__(self):
return f"NullHandler for {self.mapping.input_combination}<{id(self)}>"
@property
def child(self):
return "Voids all events"
def needs_wrapping(self) -> bool:
return False in [
input_.defines_analog_input for input_ in self.mapping.input_combination
]
def wrap_with(self) -> Dict[InputCombination, HandlerEnums]:
if not self.mapping.input_combination.defines_analog_input:
return {self.mapping.input_combination: HandlerEnums.combination}
assert len(self.mapping.input_combination) > 1, "nees_wrapping ensures this!"
return {self.mapping.input_combination: HandlerEnums.axisswitch}
def notify(
self,
event: InputEvent,
source: evdev.InputDevice,
suppress: bool = False,
) -> bool:
return True
def reset(self) -> None:
pass