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882 lines
29 KiB
Python
882 lines
29 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) 2021 sezanzeb <proxima@sezanzeb.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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"""User Interface."""
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import math
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import os
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import sys
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from gi.repository import Gtk, Gdk, GLib
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from keymapper.data import get_data_path
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from keymapper.paths import get_config_path
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from keymapper.state import custom_mapping, system_mapping
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from keymapper.presets import find_newest_preset, get_presets, \
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delete_preset, rename_preset, get_available_preset_name
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from keymapper.logger import logger, COMMIT_HASH, VERSION, EVDEV_VERSION, \
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is_debug
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from keymapper.groups import groups, GAMEPAD, KEYBOARD, UNKNOWN, \
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GRAPHICS_TABLET, TOUCHPAD, MOUSE
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from keymapper.gui.row import Row, to_string
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from keymapper.key import Key
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from keymapper.gui.reader import reader
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from keymapper.gui.helper import is_helper_running
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from keymapper.injection.injector import RUNNING, FAILED, NO_GRAB
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from keymapper.daemon import Daemon
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from keymapper.config import config
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from keymapper.injection.macros import is_this_a_macro, parse
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def gtk_iteration():
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"""Iterate while events are pending."""
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while Gtk.events_pending():
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Gtk.main_iteration()
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CTX_SAVE = 0
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CTX_APPLY = 1
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CTX_ERROR = 3
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CTX_WARNING = 4
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CTX_MAPPING = 5
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CONTINUE = True
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GO_BACK = False
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ICON_NAMES = {
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GAMEPAD: 'input-gaming',
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MOUSE: 'input-mouse',
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KEYBOARD: 'input-keyboard',
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GRAPHICS_TABLET: 'input-tablet',
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TOUCHPAD: 'input-touchpad',
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UNKNOWN: None,
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}
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# sort types that most devices would fall in easily to the right.
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ICON_PRIORITIES = [
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GRAPHICS_TABLET, TOUCHPAD, GAMEPAD, MOUSE, KEYBOARD, UNKNOWN
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]
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def with_group(func):
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"""Decorate a function to only execute if a device is selected."""
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# this should only happen if no device was found at all
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def wrapped(window, *args):
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if window.group is None:
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return True # work with timeout_add
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return func(window, *args)
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return wrapped
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def with_preset_name(func):
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"""Decorate a function to only execute if a preset is selected."""
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# this should only happen if no device was found at all
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def wrapped(window, *args):
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if window.preset_name is None or window.group is None:
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return True # work with timeout_add
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return func(window, *args)
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return wrapped
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class HandlerDisabled:
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"""Safely modify a widget without causing handlers to be called.
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Use in a with statement.
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"""
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def __init__(self, widget, handler):
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self.widget = widget
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self.handler = handler
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def __enter__(self):
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self.widget.handler_block_by_func(self.handler)
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def __exit__(self, *_):
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self.widget.handler_unblock_by_func(self.handler)
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def on_close_about(about, _):
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"""Hide the about dialog without destroying it."""
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about.hide()
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return True
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class Window:
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"""User Interface."""
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def __init__(self):
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self.dbus = None
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self.start_processes()
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self.group = None
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self.preset_name = None
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css_provider = Gtk.CssProvider()
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with open(get_data_path('style.css'), 'r') as file:
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css_provider.load_from_data(bytes(file.read(), encoding='UTF-8'))
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Gtk.StyleContext.add_provider_for_screen(
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Gdk.Screen.get_default(),
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css_provider,
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Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
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)
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gladefile = get_data_path('key-mapper.glade')
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builder = Gtk.Builder()
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builder.add_from_file(gladefile)
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builder.connect_signals(self)
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self.builder = builder
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# set up the device selection
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# https://python-gtk-3-tutorial.readthedocs.io/en/latest/treeview.html#the-view
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combobox = self.get('device_selection')
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self.device_store = Gtk.ListStore(str, str, str)
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combobox.set_model(self.device_store)
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renderer_icon = Gtk.CellRendererPixbuf()
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renderer_text = Gtk.CellRendererText()
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renderer_text.set_padding(5, 0)
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combobox.pack_start(renderer_icon, False)
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combobox.pack_start(renderer_text, False)
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combobox.add_attribute(renderer_icon, 'icon-name', 1)
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combobox.add_attribute(renderer_text, 'text', 2)
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combobox.set_id_column(0)
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self.confirm_delete = builder.get_object('confirm-delete')
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self.about = builder.get_object('about-dialog')
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self.about.connect('delete-event', on_close_about)
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# set_position needs to be done once initially, otherwise the
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# dialog is not centered when it is opened for the first time
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self.about.set_position(Gtk.WindowPosition.CENTER_ON_PARENT)
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self.get('version-label').set_text(
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f'key-mapper {VERSION} {COMMIT_HASH[:7]}'
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f'\npython-evdev {EVDEV_VERSION}' if EVDEV_VERSION else ''
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)
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window = self.get('window')
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window.show()
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# hide everything until stuff is populated
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self.get('vertical-wrapper').set_opacity(0)
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self.window = window
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# if any of the next steps take a bit to complete, have the window
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# already visible (without content) to make it look more responsive.
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gtk_iteration()
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# this is not set to invisible in glade to give the ui a default
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# height that doesn't jump when a gamepad is selected
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self.get('gamepad_separator').hide()
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self.get('gamepad_config').hide()
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self.populate_devices()
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self.timeouts = []
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self.setup_timeouts()
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# now show the proper finished content of the window
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self.get('vertical-wrapper').set_opacity(1)
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self.ctrl = False
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self.unreleased_warn = False
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self.button_left_warn = False
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if not is_helper_running():
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self.show_status(CTX_ERROR, 'The helper did not start')
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def setup_timeouts(self):
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"""Setup all GLib timeouts."""
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self.timeouts = [
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GLib.timeout_add(100, self.check_add_row),
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GLib.timeout_add(1000 / 30, self.consume_newest_keycode)
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]
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def start_processes(self):
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"""Start helper and daemon via pkexec to run in the background."""
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# this function is overwritten in tests
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self.dbus = Daemon.connect()
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debug = ' -d' if is_debug() else ''
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cmd = f'pkexec key-mapper-control --command helper {debug}'
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logger.debug('Running `%s`', cmd)
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exit_code = os.system(cmd)
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if exit_code != 0:
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logger.error('Failed to pkexec the helper, code %d', exit_code)
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sys.exit()
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def show_confirm_delete(self):
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"""Blocks until the user decided about an action."""
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text = f'Are you sure to delete preset "{self.preset_name}"?'
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self.get('confirm-delete-label').set_text(text)
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self.confirm_delete.show()
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response = self.confirm_delete.run()
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self.confirm_delete.hide()
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return response
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def key_press(self, _, event):
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"""To execute shortcuts.
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This has nothing to do with the keycode reader.
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"""
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_, focused = self.get_focused_row()
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if isinstance(focused, Gtk.ToggleButton):
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return
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gdk_keycode = event.get_keyval()[1]
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if gdk_keycode in [Gdk.KEY_Control_L, Gdk.KEY_Control_R]:
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self.ctrl = True
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if self.ctrl:
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# shortcuts
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if gdk_keycode == Gdk.KEY_q:
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self.on_close()
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if gdk_keycode == Gdk.KEY_r:
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reader.refresh_groups()
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if gdk_keycode == Gdk.KEY_Delete:
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self.on_restore_defaults_clicked()
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def key_release(self, _, event):
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"""To execute shortcuts.
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This has nothing to do with the keycode reader.
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"""
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gdk_keycode = event.get_keyval()[1]
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if gdk_keycode in [Gdk.KEY_Control_L, Gdk.KEY_Control_R]:
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self.ctrl = False
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def initialize_gamepad_config(self):
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"""Set slider and dropdown values when a gamepad is selected."""
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if GAMEPAD in self.group.types:
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self.get('gamepad_separator').show()
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self.get('gamepad_config').show()
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else:
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self.get('gamepad_separator').hide()
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self.get('gamepad_config').hide()
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return
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left_purpose = self.get('left_joystick_purpose')
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right_purpose = self.get('right_joystick_purpose')
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speed = self.get('joystick_mouse_speed')
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with HandlerDisabled(left_purpose, self.on_left_joystick_changed):
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value = custom_mapping.get('gamepad.joystick.left_purpose')
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left_purpose.set_active_id(value)
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with HandlerDisabled(right_purpose, self.on_right_joystick_changed):
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value = custom_mapping.get('gamepad.joystick.right_purpose')
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right_purpose.set_active_id(value)
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with HandlerDisabled(speed, self.on_joystick_mouse_speed_changed):
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value = custom_mapping.get('gamepad.joystick.pointer_speed')
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range_value = math.log(value, 2)
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speed.set_value(range_value)
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def get(self, name):
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"""Get a widget from the window"""
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return self.builder.get_object(name)
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def on_close(self, *_):
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"""Safely close the application."""
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logger.debug('Closing window')
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self.save_preset()
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self.window.hide()
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for timeout in self.timeouts:
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GLib.source_remove(timeout)
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self.timeouts = []
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reader.terminate()
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Gtk.main_quit()
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def check_add_row(self):
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"""Ensure that one empty row is available at all times."""
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rows = self.get('key_list').get_children()
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# verify that all mappings are displayed.
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# One of them is possibly the empty row
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num_rows = len(rows)
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num_maps = len(custom_mapping)
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if num_rows < num_maps or num_rows > num_maps + 1:
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logger.error(
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'custom_mapping contains %d rows, '
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'but %d are displayed',
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len(custom_mapping), num_rows
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)
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logger.spam(
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'Mapping %s',
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list(custom_mapping)
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)
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logger.spam(
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'Rows %s',
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[(row.get_key(), row.get_symbol()) for row in rows]
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)
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# iterating over that 10 times per second is a bit wasteful,
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# but the old approach which involved just counting the number of
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# mappings and rows didn't seem very robust.
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for row in rows:
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if row.get_key() is None or row.get_symbol() is None:
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# unfinished row found
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break
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else:
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self.add_empty()
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return True
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def select_newest_preset(self):
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"""Find and select the newest preset (and its device)."""
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device, preset = find_newest_preset()
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group = groups.find(name=device)
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if device is not None:
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self.get('device_selection').set_active_id(group.key)
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if preset is not None:
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self.get('preset_selection').set_active_id(preset)
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def populate_devices(self):
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"""Make the devices selectable."""
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device_selection = self.get('device_selection')
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with HandlerDisabled(device_selection, self.on_select_device):
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self.device_store.clear()
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for group in groups.filter(include_keymapper=False):
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types = group.types
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if len(types) > 0:
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device_type = sorted(types, key=ICON_PRIORITIES.index)[0]
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icon_name = ICON_NAMES[device_type]
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else:
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icon_name = None
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self.device_store.append([group.key, icon_name, group.key])
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self.select_newest_preset()
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@with_group
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def populate_presets(self):
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"""Show the available presets for the selected device.
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This will destroy unsaved changes in the custom_mapping.
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"""
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presets = get_presets(self.group.name)
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if len(presets) == 0:
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new_preset = get_available_preset_name(self.group.name)
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custom_mapping.empty()
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path = self.group.get_preset_path(new_preset)
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custom_mapping.save(path)
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presets = [new_preset]
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else:
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logger.debug(
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'"%s" presets: "%s"',
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self.group.name, '", "'.join(presets)
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)
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preset_selection = self.get('preset_selection')
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with HandlerDisabled(preset_selection, self.on_select_preset):
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# otherwise the handler is called with None for each preset
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preset_selection.remove_all()
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for preset in presets:
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preset_selection.append(preset, preset)
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# and select the newest one (on the top). triggers on_select_preset
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preset_selection.set_active(0)
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def clear_mapping_table(self):
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"""Remove all rows from the mappings table."""
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key_list = self.get('key_list')
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key_list.forall(key_list.remove)
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custom_mapping.empty()
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def can_modify_mapping(self, *_):
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"""Show a message if changing the mapping is not possible."""
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if self.dbus.get_state(self.group.key) != RUNNING:
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return
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# because the device is in grab mode by the daemon and
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# therefore the original keycode inaccessible
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logger.info('Cannot change keycodes while injecting')
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self.show_status(
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CTX_ERROR,
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'Use "Restore Defaults" to stop before editing'
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)
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def get_focused_row(self):
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"""Get the Row and its child that is currently in focus."""
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focused = self.window.get_focus()
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if focused is None:
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return None, None
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box = focused.get_parent()
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if box is None:
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return None, None
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row = box.get_parent()
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if not isinstance(row, Row):
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return None, None
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return row, focused
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def consume_newest_keycode(self):
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"""To capture events from keyboards, mice and gamepads."""
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# the "event" event of Gtk.Window wouldn't trigger on gamepad
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# events, so it became a GLib timeout to periodically check kernel
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# events.
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# letting go of one of the keys of a combination won't just make
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# it return the leftover key, it will continue to return None because
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# they have already been read.
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key = reader.read()
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if reader.are_new_devices_available():
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self.populate_devices()
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# TODO highlight if a row for that key exists or something
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# inform the currently selected row about the new keycode
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row, focused = self.get_focused_row()
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if key is not None:
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if isinstance(focused, Gtk.ToggleButton):
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row.set_new_key(key)
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if key.is_problematic() and isinstance(focused, Gtk.ToggleButton):
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self.show_status(
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CTX_WARNING,
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'ctrl, alt and shift may not combine properly',
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'Your system might reinterpret combinations ' +
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'with those after they are injected, and by doing so ' +
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'break them.'
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)
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if row is not None:
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row.refresh_state()
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return True
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@with_group
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def on_restore_defaults_clicked(self, *_):
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"""Stop injecting the mapping."""
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self.dbus.stop_injecting(self.group.key)
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self.show_status(CTX_APPLY, 'Applied the system default')
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GLib.timeout_add(100, self.show_device_mapping_status)
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def show_status(self, context_id, message, tooltip=None):
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"""Show a status message and set its tooltip.
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If message is None, it will remove the newest message of the
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given context_id.
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"""
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status_bar = self.get('status_bar')
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if message is None:
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status_bar.remove_all(context_id)
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if context_id in (CTX_ERROR, CTX_MAPPING):
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self.get('error_status_icon').hide()
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if context_id == CTX_WARNING:
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self.get('warning_status_icon').hide()
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status_bar.set_tooltip_text('')
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else:
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if tooltip is None:
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tooltip = message
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self.get('error_status_icon').hide()
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self.get('warning_status_icon').hide()
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if context_id in (CTX_ERROR, CTX_MAPPING):
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self.get('error_status_icon').show()
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if context_id == CTX_WARNING:
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self.get('warning_status_icon').show()
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if len(message) > 55:
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message = message[:52] + '...'
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status_bar.push(context_id, message)
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status_bar.set_tooltip_text(tooltip)
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def check_macro_syntax(self):
|
|
"""Check if the programmed macros are allright."""
|
|
self.show_status(CTX_MAPPING, None)
|
|
for key, output in custom_mapping:
|
|
if not is_this_a_macro(output):
|
|
continue
|
|
|
|
error = parse(output, custom_mapping, return_errors=True)
|
|
if error is None:
|
|
continue
|
|
|
|
position = to_string(key)
|
|
msg = f'Syntax error at {position}, hover for info'
|
|
self.show_status(CTX_MAPPING, msg, error)
|
|
|
|
def on_rename_button_clicked(self, _):
|
|
"""Rename the preset based on the contents of the name input."""
|
|
new_name = self.get('preset_name_input').get_text()
|
|
|
|
if new_name in ['', self.preset_name]:
|
|
return
|
|
|
|
self.save_preset()
|
|
|
|
new_name = rename_preset(
|
|
self.group.name,
|
|
self.preset_name,
|
|
new_name
|
|
)
|
|
|
|
# if the old preset was being autoloaded, change the
|
|
# name there as well
|
|
is_autoloaded = config.is_autoloaded(
|
|
self.group.key,
|
|
self.preset_name
|
|
)
|
|
if is_autoloaded:
|
|
config.set_autoload_preset(self.group.key, new_name)
|
|
|
|
self.get('preset_name_input').set_text('')
|
|
self.populate_presets()
|
|
|
|
@with_preset_name
|
|
def on_delete_preset_clicked(self, _):
|
|
"""Delete a preset from the file system."""
|
|
accept = Gtk.ResponseType.ACCEPT
|
|
if len(custom_mapping) > 0 and self.show_confirm_delete() != accept:
|
|
return
|
|
|
|
custom_mapping.changed = False
|
|
delete_preset(self.group.name, self.preset_name)
|
|
self.populate_presets()
|
|
|
|
@with_preset_name
|
|
def on_apply_preset_clicked(self, _):
|
|
"""Apply a preset without saving changes."""
|
|
self.save_preset()
|
|
|
|
if custom_mapping.num_saved_keys == 0:
|
|
logger.error('Cannot apply empty preset file')
|
|
# also helpful for first time use
|
|
if custom_mapping.changed:
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
'You need to save your changes first',
|
|
'No mappings are stored in the preset .json file yet'
|
|
)
|
|
else:
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
'You need to add keys and save first'
|
|
)
|
|
return
|
|
|
|
preset = self.preset_name
|
|
logger.info(
|
|
'Applying preset "%s" for "%s"',
|
|
preset, self.group.key
|
|
)
|
|
|
|
if not self.button_left_warn:
|
|
if custom_mapping.dangerously_mapped_btn_left():
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
'This would disable your click button',
|
|
'Map a button to BTN_LEFT to avoid this.\n'
|
|
'To overwrite this warning, press apply again.'
|
|
)
|
|
self.button_left_warn = True
|
|
return
|
|
|
|
if not self.unreleased_warn:
|
|
unreleased = reader.get_unreleased_keys()
|
|
if unreleased is not None and unreleased != Key.btn_left():
|
|
# it's super annoying if that happens and may break the user
|
|
# input in such a way to prevent disabling the mapping
|
|
logger.error(
|
|
'Tried to apply a preset while keys were held down: %s',
|
|
unreleased
|
|
)
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
'Please release your pressed keys first',
|
|
'X11 will think they are held down forever otherwise.\n'
|
|
'To overwrite this warning, press apply again.'
|
|
)
|
|
self.unreleased_warn = True
|
|
return
|
|
|
|
self.unreleased_warn = False
|
|
self.button_left_warn = False
|
|
self.dbus.set_config_dir(get_config_path())
|
|
self.dbus.start_injecting(self.group.key, preset)
|
|
|
|
self.show_status(
|
|
CTX_APPLY,
|
|
'Starting injection...'
|
|
)
|
|
|
|
GLib.timeout_add(100, self.show_injection_result)
|
|
|
|
def on_autoload_switch(self, _, active):
|
|
"""Load the preset automatically next time the user logs in."""
|
|
key = self.group.key
|
|
preset = self.preset_name
|
|
config.set_autoload_preset(key, preset if active else None)
|
|
config.save_config()
|
|
# tell the service to refresh its config
|
|
self.dbus.set_config_dir(get_config_path())
|
|
|
|
def on_select_device(self, dropdown):
|
|
"""List all presets, create one if none exist yet."""
|
|
self.save_preset()
|
|
|
|
if self.group and dropdown.get_active_id() == self.group.key:
|
|
return
|
|
|
|
# selecting a device will also automatically select a different
|
|
# preset. Prevent another unsaved-changes dialog to pop up
|
|
custom_mapping.changed = False
|
|
|
|
group_key = dropdown.get_active_id()
|
|
|
|
if group_key is None:
|
|
return
|
|
|
|
logger.debug('Selecting device "%s"', group_key)
|
|
|
|
self.group = groups.find(key=group_key)
|
|
self.preset_name = None
|
|
|
|
self.populate_presets()
|
|
|
|
reader.start_reading(groups.find(key=group_key))
|
|
|
|
self.show_device_mapping_status()
|
|
|
|
def show_injection_result(self):
|
|
"""Show if the injection was successfully started."""
|
|
state = self.dbus.get_state(self.group.key)
|
|
|
|
if state == RUNNING:
|
|
msg = f'Applied preset "{self.preset_name}"'
|
|
|
|
if custom_mapping.get_symbol(Key.btn_left()):
|
|
msg += ', CTRL + DEL to stop'
|
|
|
|
self.show_status(CTX_APPLY, msg)
|
|
|
|
self.show_device_mapping_status()
|
|
return False
|
|
|
|
if state == FAILED:
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
f'Failed to apply preset "{self.preset_name}"'
|
|
)
|
|
return False
|
|
|
|
if state == NO_GRAB:
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
'The device was not grabbed',
|
|
'Either another application is already grabbing it or '
|
|
'your preset doesn\'t contain anything that is sent by the '
|
|
'device.'
|
|
)
|
|
return False
|
|
|
|
# keep the timeout running
|
|
return True
|
|
|
|
def show_device_mapping_status(self):
|
|
"""Figure out if this device is currently under keymappers control."""
|
|
group_key = self.group.key
|
|
state = self.dbus.get_state(group_key)
|
|
if state == RUNNING:
|
|
logger.info('Group "%s" is currently mapped', group_key)
|
|
self.get('apply_system_layout').set_opacity(1)
|
|
else:
|
|
self.get('apply_system_layout').set_opacity(0.4)
|
|
|
|
@with_preset_name
|
|
def on_copy_preset_clicked(self, _):
|
|
"""Copy the current preset and select it."""
|
|
self.create_preset(True)
|
|
|
|
@with_group
|
|
def on_create_preset_clicked(self, _):
|
|
"""Create a new preset and select it."""
|
|
self.create_preset()
|
|
|
|
def create_preset(self, copy=False):
|
|
"""Create a new preset and select it."""
|
|
self.save_preset()
|
|
name = self.group.name
|
|
preset = self.preset_name
|
|
|
|
try:
|
|
if copy:
|
|
new_preset = get_available_preset_name(name, preset, copy)
|
|
else:
|
|
new_preset = get_available_preset_name(name)
|
|
custom_mapping.empty()
|
|
|
|
path = self.group.get_preset_path(new_preset)
|
|
custom_mapping.save(path)
|
|
self.get('preset_selection').append(new_preset, new_preset)
|
|
self.get('preset_selection').set_active_id(new_preset)
|
|
except PermissionError as error:
|
|
error = str(error)
|
|
self.show_status(CTX_ERROR, 'Permission denied!', error)
|
|
logger.error(error)
|
|
|
|
def on_select_preset(self, dropdown):
|
|
"""Show the mappings of the preset."""
|
|
# beware in tests that this function won't be called at all if the
|
|
# active_id stays the same
|
|
self.save_preset()
|
|
|
|
if dropdown.get_active_id() == self.preset_name:
|
|
return
|
|
|
|
self.clear_mapping_table()
|
|
|
|
preset = dropdown.get_active_text()
|
|
if preset is None:
|
|
return
|
|
|
|
logger.debug('Selecting preset "%s"', preset)
|
|
self.preset_name = preset
|
|
|
|
custom_mapping.load(self.group.get_preset_path(preset))
|
|
|
|
key_list = self.get('key_list')
|
|
for key, output in custom_mapping:
|
|
single_key_mapping = Row(
|
|
window=self,
|
|
delete_callback=self.on_row_removed,
|
|
key=key,
|
|
symbol=output
|
|
)
|
|
key_list.insert(single_key_mapping, -1)
|
|
|
|
autoload_switch = self.get('preset_autoload_switch')
|
|
|
|
with HandlerDisabled(autoload_switch, self.on_autoload_switch):
|
|
autoload_switch.set_active(config.is_autoloaded(
|
|
self.group.key,
|
|
self.preset_name
|
|
))
|
|
|
|
self.get('preset_name_input').set_text('')
|
|
self.add_empty()
|
|
|
|
self.initialize_gamepad_config()
|
|
|
|
custom_mapping.changed = False
|
|
|
|
def on_left_joystick_changed(self, dropdown):
|
|
"""Set the purpose of the left joystick."""
|
|
purpose = dropdown.get_active_id()
|
|
custom_mapping.set('gamepad.joystick.left_purpose', purpose)
|
|
self.save_preset()
|
|
|
|
def on_right_joystick_changed(self, dropdown):
|
|
"""Set the purpose of the right joystick."""
|
|
purpose = dropdown.get_active_id()
|
|
custom_mapping.set('gamepad.joystick.right_purpose', purpose)
|
|
self.save_preset()
|
|
|
|
def on_joystick_mouse_speed_changed(self, gtk_range):
|
|
"""Set how fast the joystick moves the mouse."""
|
|
speed = 2 ** gtk_range.get_value()
|
|
custom_mapping.set('gamepad.joystick.pointer_speed', speed)
|
|
|
|
def add_empty(self):
|
|
"""Add one empty row for a single mapped key."""
|
|
empty = Row(window=self, delete_callback=self.on_row_removed)
|
|
key_list = self.get('key_list')
|
|
key_list.insert(empty, -1)
|
|
|
|
def on_row_removed(self, single_key_mapping):
|
|
"""Stuff to do when a row was removed
|
|
|
|
Parameters
|
|
----------
|
|
single_key_mapping : Row
|
|
"""
|
|
key_list = self.get('key_list')
|
|
# https://stackoverflow.com/a/30329591/4417769
|
|
key_list.remove(single_key_mapping)
|
|
|
|
def save_preset(self, *_):
|
|
"""Write changes to presets to disk."""
|
|
if not custom_mapping.changed:
|
|
return
|
|
|
|
try:
|
|
path = self.group.get_preset_path(self.preset_name)
|
|
custom_mapping.save(path)
|
|
|
|
custom_mapping.changed = False
|
|
|
|
# after saving the config, its modification date will be the
|
|
# newest, so populate_presets will automatically select the
|
|
# right one again.
|
|
self.populate_presets()
|
|
except PermissionError as error:
|
|
error = str(error)
|
|
self.show_status(CTX_ERROR, 'Permission denied!', error)
|
|
logger.error(error)
|
|
|
|
for _, symbol in custom_mapping:
|
|
if is_this_a_macro(symbol):
|
|
continue
|
|
|
|
if system_mapping.get(symbol) is None:
|
|
self.show_status(CTX_MAPPING, f'Unknown mapping "{symbol}"')
|
|
break
|
|
else:
|
|
# no broken mappings found
|
|
self.show_status(CTX_MAPPING, None)
|
|
|
|
# checking macros is probably a bit more expensive, do that if
|
|
# the regular mappings are allright
|
|
self.check_macro_syntax()
|
|
|
|
def on_about_clicked(self, _):
|
|
"""Show the about/help dialog."""
|
|
self.about.show()
|
|
|
|
def on_about_key_press(self, _, event):
|
|
"""Hide the about/help dialog."""
|
|
gdk_keycode = event.get_keyval()[1]
|
|
if gdk_keycode == Gdk.KEY_Escape:
|
|
self.about.hide()
|