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92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# input-remapper - GUI for device specific keyboard mappings
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# Copyright (C) 2022 sezanzeb <proxima@sezanzeb.de>
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#
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# This file is part of input-remapper.
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#
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# input-remapper is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# input-remapper is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with input-remapper. If not, see <https://www.gnu.org/licenses/>.
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from typing import Tuple, Dict
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from inputremapper import exceptions
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from inputremapper.configs.mapping import Mapping
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from inputremapper.event_combination import EventCombination
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from inputremapper.exceptions import MappingParsingError
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from inputremapper.injection.global_uinputs import global_uinputs
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from inputremapper.injection.mapping_handlers.mapping_handler import (
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MappingHandler,
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HandlerEnums,
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)
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from inputremapper.input_event import InputEvent
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from inputremapper.logger import logger
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class KeyHandler(MappingHandler):
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"""Injects the target key if notified."""
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_active: bool
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_maps_to: Tuple[int, int]
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def __init__(
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self,
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combination: EventCombination,
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mapping: Mapping,
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**_,
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):
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super().__init__(combination, mapping)
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maps_to = mapping.get_output_type_code()
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if not maps_to:
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raise MappingParsingError(
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"unable to create key handler from mapping", mapping=mapping
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)
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self._maps_to = maps_to
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self._active = False
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def __str__(self):
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return f"KeyHandler <{id(self)}>:"
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def __repr__(self):
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return self.__str__()
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@property
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def child(self): # used for logging
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return f"maps to: {self._maps_to} on {self.mapping.target_uinput}"
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def notify(self, event: InputEvent, *_, **__) -> bool:
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"""Inject event.value to the target key."""
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event_tuple = (*self._maps_to, event.value)
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try:
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global_uinputs.write(event_tuple, self.mapping.target_uinput)
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logger.debug_key(event_tuple, "sending to %s", self.mapping.target_uinput)
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self._active = bool(event.value)
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return True
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except exceptions.Error:
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return False
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def reset(self) -> None:
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logger.debug("resetting key_handler")
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if self._active:
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event_tuple = (*self._maps_to, 0)
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global_uinputs.write(event_tuple, self.mapping.target_uinput)
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self._active = False
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def needs_wrapping(self) -> bool:
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return True
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def wrap_with(self) -> Dict[EventCombination, HandlerEnums]:
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return {EventCombination(self.input_events): HandlerEnums.combination}
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