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161 lines
4.5 KiB
Python
161 lines
4.5 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, USER, touch
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from keymapper.logger import logger
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CONFIG_PATH = os.path.join(CONFIG, 'config')
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INITIAL_CONFIG = {
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'autoload': {},
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'macros': {
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# some time between keystrokes might be required for them to be
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# detected properly in software.
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'keystroke_sleep_ms': 10
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},
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'gamepad': {
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'non_linearity': 4,
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'pointer_speed': 80
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}
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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 _resolve(self, path, func):
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"""Call func for the given config value."""
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chunks = path.split('.')
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child = self._config
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while True:
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chunk = chunks.pop(0)
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parent = child
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child = child.get(chunk)
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if len(chunks) == 0:
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# child is the value _resolve is looking for
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return func(parent, child, chunk)
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else:
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# child is another object
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if child is None:
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parent[chunk] = {}
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child = parent[chunk]
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def remove(self, path):
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"""Remove a config key.
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Parameters
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----------
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path : string
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For example 'macros.keystroke_sleep_ms'
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"""
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def do(parent, child, chunk):
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if child is not None:
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del parent[chunk]
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self._resolve(path, do)
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def set(self, path, value):
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"""Set a config key.
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Parameters
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----------
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path : string
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For example 'macros.keystroke_sleep_ms'
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value : any
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"""
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def do(parent, child, chunk):
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parent[chunk] = value
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self._resolve(path, do)
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def get(self, path, default=None):
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"""Get a config value.
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Parameters
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----------
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path : string
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For example 'macros.keystroke_sleep_ms'
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"""
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return self._resolve(path, lambda parent, child, chunk: child)
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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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Parameters
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----------
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device : string
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preset : string or None
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if None, don't autoload something for this device
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"""
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if preset is not None:
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self.set(f'autoload.{device}', preset)
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else:
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self.remove(f'autoload.{device}')
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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.get('autoload', {}).items()
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def is_autoloaded(self, device, preset):
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"""Should this preset be loaded automatically?"""
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return self.get(f'autoload.{device}') == preset
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def load_config(self):
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"""Load the config from the file system."""
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self.clear_config()
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if not os.path.exists(CONFIG_PATH):
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# treated like an empty config
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logger.debug('Config file "%s" doesn\'t exist', CONFIG_PATH)
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return
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with open(CONFIG_PATH, 'r') as file:
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self._config.update(json.load(file))
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logger.info('Loaded config from "%s"', CONFIG_PATH)
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def clear_config(self):
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"""Reset the configuration to the initial values."""
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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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touch(CONFIG_PATH)
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with open(CONFIG_PATH, 'w') as file:
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json.dump(self._config, file, indent=4)
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logger.info('Saved config to %s', CONFIG_PATH)
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shutil.chown(CONFIG_PATH, USER, USER)
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file.write('\n')
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config = _Config()
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