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103 lines
3.3 KiB
Python
103 lines
3.3 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# key-mapper - GUI for device specific keyboard mappings
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# Copyright (C) 2020 sezanzeb <proxima@hip70890b.de>
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#
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# This file is part of key-mapper.
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#
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# key-mapper 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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# key-mapper 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 key-mapper. If not, see <https://www.gnu.org/licenses/>.
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"""Store which presets should be enabled for which device on login."""
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import os
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import json
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import shutil
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import copy
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from keymapper.paths import CONFIG
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from keymapper.logger import logger
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CONFIG_PATH = os.path.join(CONFIG, 'config')
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# an empty config with basic expected substructures
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INITIAL_CONFIG = {
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'autoload': {},
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'map_EV_REL_devices': True
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}
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class _Config:
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def __init__(self):
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self._config = {}
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self.load_config()
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def set_autoload_preset(self, device, preset):
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"""Set a preset to be automatically applied on start."""
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self._config['autoload'][device] = preset
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def iterate_autoload_presets(self):
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"""get tuples of (device, preset)."""
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return self._config['autoload'].items()
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def set_modify_movement_devices(self, active):
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"""Set if devices that control movements should also be mapped.
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This causes many movements event to be passed through python code,
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and if this ever seems to affect the responsiveness of mouse movements,
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it can be disabled. This is just an optional precaution. Disabling this
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may make mapping some keys of the device impossible.
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"""
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self._config['map_EV_REL_devices'] = active
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def may_modify_movement_devices(self):
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"""Get if devices that control movements may be modified as well."""
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return self._config['map_EV_REL_devices']
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def load_config(self):
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"""Load the config from the file system."""
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if not os.path.exists(CONFIG_PATH):
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# has not yet been saved
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logger.info('Creating initial config')
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self._config = copy.deepcopy(INITIAL_CONFIG)
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self.save_config()
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return
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with open(CONFIG_PATH, 'r') as f:
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self._config = copy.deepcopy(INITIAL_CONFIG)
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self._config.update(json.load(f))
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logger.info('Loaded config from %s', CONFIG_PATH)
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def clear_config(self):
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"""Needed for tests."""
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self._config = copy.deepcopy(INITIAL_CONFIG)
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def save_config(self):
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"""Save the config to the file system."""
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if not os.path.exists(CONFIG_PATH):
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logger.debug('Creating "%s"', CONFIG_PATH)
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os.makedirs(os.path.dirname(CONFIG_PATH), exist_ok=True)
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os.mknod(CONFIG_PATH)
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with open(CONFIG_PATH, 'w') as f:
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json.dump(self._config, f, indent=4)
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logger.info('Saved config to %s', CONFIG_PATH)
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shutil.chown(CONFIG_PATH, os.getlogin())
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f.write('\n')
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config = _Config()
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