mirror of
https://github.com/sezanzeb/input-remapper
synced 2024-11-16 06:12:58 +00:00
144 lines
4.7 KiB
Python
144 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
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# input-remapper - GUI for device specific keyboard mappings
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# Copyright (C) 2023 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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import asyncio
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import time
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import evdev
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from evdev.ecodes import EV_REL
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from inputremapper.configs.input_config import InputCombination, InputConfig
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from inputremapper.configs.mapping import Mapping
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from inputremapper.injection.mapping_handlers.mapping_handler import (
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MappingHandler,
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InputEventHandler,
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)
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from inputremapper.input_event import InputEvent, EventActions
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from inputremapper.logger import logger
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class RelToBtnHandler(MappingHandler):
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"""Handler which transforms an EV_REL to a button event
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and sends that to a sub_handler
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adheres to the MappingHandler protocol
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"""
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_active: bool
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_input_config: InputConfig
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_last_activation: float
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_sub_handler: InputEventHandler
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def __init__(
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self,
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combination: InputCombination,
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mapping: Mapping,
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**_,
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) -> None:
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super().__init__(combination, mapping)
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self._active = False
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self._input_config = combination[0]
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self._last_activation = time.time()
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self._abort_release = False
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assert self._input_config.analog_threshold != 0
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assert len(combination) == 1
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def __str__(self):
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return f'RelToBtnHandler for "{self._input_config}"'
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def __repr__(self):
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return f"<{str(self)} at {hex(id(self))}>"
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@property
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def child(self): # used for logging
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return self._sub_handler
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async def _stage_release(
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self,
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source: InputEvent,
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suppress: bool,
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):
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while time.time() < self._last_activation + self.mapping.release_timeout:
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await asyncio.sleep(1 / self.mapping.rel_rate)
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if self._abort_release:
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self._abort_release = False
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return
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event = InputEvent(
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0,
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0,
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*self._input_config.type_and_code,
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value=0,
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actions=(EventActions.as_key,),
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origin_hash=self._input_config.origin_hash,
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)
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logger.debug("Sending %s to sub_handler", event)
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self._sub_handler.notify(event, source, suppress)
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self._active = False
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def notify(
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self,
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event: InputEvent,
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source: evdev.InputDevice,
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suppress: bool = False,
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) -> bool:
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assert event.type == EV_REL
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if event.input_match_hash != self._input_config.input_match_hash:
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return False
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assert (threshold := self._input_config.analog_threshold)
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value = event.value
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if (value < threshold > 0) or (value > threshold < 0):
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if self._active:
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# the axis is below the threshold and the stage_release
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# function is running
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if self.mapping.force_release_timeout:
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# consume the event
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return True
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event = event.modify(value=0, actions=(EventActions.as_key,))
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logger.debug("Sending %s to sub_handler", event)
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self._abort_release = True
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else:
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# don't consume the event.
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# We could return True to consume events
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return False
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else:
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# the axis is above the threshold
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if not self._active:
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asyncio.ensure_future(self._stage_release(source, suppress))
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if value >= threshold > 0:
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direction = EventActions.positive_trigger
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else:
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direction = EventActions.negative_trigger
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self._last_activation = time.time()
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event = event.modify(value=1, actions=(EventActions.as_key, direction))
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self._active = bool(event.value)
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# logger.debug("Sending %s to sub_handler", event)
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return self._sub_handler.notify(event, source=source, suppress=suppress)
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def reset(self) -> None:
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if self._active:
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self._abort_release = True
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self._active = False
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self._sub_handler.reset()
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