input-remapper/keymapper/config.py
2020-11-26 21:33:31 +01:00

107 lines
3.2 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# key-mapper - GUI for device specific keyboard mappings
# Copyright (C) 2020 sezanzeb <proxima@hip70890b.de>
#
# This file is part of key-mapper.
#
# key-mapper 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.
#
# key-mapper 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 key-mapper. If not, see <https://www.gnu.org/licenses/>.
"""Store which presets should be enabled for which device on login."""
import os
import json
import shutil
import copy
from keymapper.paths import CONFIG
from keymapper.logger import logger
CONFIG_PATH = os.path.join(CONFIG, 'config')
# an empty config with basic expected substructures
INITIAL_CONFIG = {
'autoload': {}
}
class _Config:
def __init__(self):
self._config = {}
self.load_config()
def set_autoload_preset(self, device, preset, load=True):
"""Set a preset to be automatically applied on start."""
if self._config.get('autoload') is None:
self._config['autoload'] = {}
if load:
self._config['autoload'][device] = preset
elif self._config['autoload'].get(device) is not None:
# TODO test
del self._config['autoload'][device]
def iterate_autoload_presets(self):
"""Get tuples of (device, preset)."""
return self._config.get('autoload', {}).items()
def is_autoloaded(self, device, preset):
"""Should this preset be loaded automatically?"""
# TODO test
autoload_map = self._config.get('autoload')
if autoload_map is None:
return False
autoload_preset = autoload_map.get(device)
if autoload_preset is None:
return False
return True
def load_config(self):
"""Load the config from the file system."""
self.clear_config()
if not os.path.exists(CONFIG_PATH):
# treated like an empty config
logger.debug('Config file "%s" doesn\'t exist')
return
with open(CONFIG_PATH, 'r') as file:
self._config.update(json.load(file))
logger.info('Loaded config from "%s"', CONFIG_PATH)
def clear_config(self):
"""Reset the configuration to the initial values."""
self._config = copy.deepcopy(INITIAL_CONFIG)
def save_config(self):
"""Save the config to the file system."""
if not os.path.exists(CONFIG_PATH):
logger.debug('Creating "%s"', CONFIG_PATH)
os.makedirs(os.path.dirname(CONFIG_PATH), exist_ok=True)
os.mknod(CONFIG_PATH)
with open(CONFIG_PATH, 'w') as file:
json.dump(self._config, file, indent=4)
logger.info('Saved config to %s', CONFIG_PATH)
shutil.chown(CONFIG_PATH, os.getlogin(), os.getlogin())
file.write('\n')
config = _Config()