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708 lines
24 KiB
Python
708 lines
24 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# input-remapper - GUI for device specific keyboard mappings
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# Copyright (C) 2022 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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"""User Interface."""
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import math
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import os
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import re
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import sys
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from inputremapper.gui.gettext import _
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from evdev.ecodes import EV_KEY
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from gi.repository import Gtk, GtkSource, Gdk, GLib, GObject
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from inputremapper.input_event import InputEvent
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from inputremapper.configs.data import get_data_path
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from inputremapper.exceptions import MacroParsingError
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from inputremapper.configs.paths import get_config_path, get_preset_path
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from inputremapper.configs.system_mapping import system_mapping
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from inputremapper.gui.active_preset import active_preset
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from inputremapper.gui.utils import HandlerDisabled
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from inputremapper.configs.preset import (
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find_newest_preset,
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get_presets,
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delete_preset,
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rename_preset,
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get_available_preset_name,
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)
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from inputremapper.logger import logger, COMMIT_HASH, VERSION, EVDEV_VERSION, is_debug
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from inputremapper.groups import (
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groups,
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GAMEPAD,
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KEYBOARD,
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UNKNOWN,
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GRAPHICS_TABLET,
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TOUCHPAD,
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MOUSE,
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)
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from inputremapper.gui.editor.editor import Editor
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from inputremapper.event_combination import EventCombination
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from inputremapper.gui.reader import reader
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from inputremapper.gui.helper import is_helper_running
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from inputremapper.injection.injector import RUNNING, FAILED, NO_GRAB, UPGRADE_EVDEV
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from inputremapper.daemon import Daemon
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from inputremapper.configs.global_config import global_config
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from inputremapper.injection.macros.parse import is_this_a_macro, parse
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from inputremapper.injection.global_uinputs import global_uinputs
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from inputremapper.gui.utils import (
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CTX_ERROR,
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CTX_MAPPING,
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CTX_APPLY,
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CTX_WARNING,
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gtk_iteration,
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)
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# TODO add to .deb and AUR dependencies
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# https://cjenkins.wordpress.com/2012/05/08/use-gtksourceview-widget-in-glade/
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GObject.type_register(GtkSource.View)
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# GtkSource.View() also works:
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# https://stackoverflow.com/questions/60126579/gtk-builder-error-quark-invalid-object-type-webkitwebview
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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 = [GRAPHICS_TABLET, TOUCHPAD, GAMEPAD, MOUSE, KEYBOARD, UNKNOWN]
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def if_group_selected(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(self, *args, **kwargs):
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if self.group is None:
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return True # work with timeout_add
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return func(self, *args, **kwargs)
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return wrapped
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def if_preset_selected(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(self, *args, **kwargs):
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if self.preset_name is None or self.group is None:
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return True # work with timeout_add
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return func(self, *args, **kwargs)
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return wrapped
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def on_close_about(about, event):
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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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def ensure_everything_saved(func):
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"""Make sure the editor has written its changes to active_preset and save."""
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def wrapped(self, *args, **kwargs):
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if self.preset_name:
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self.editor.gather_changes_and_save()
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return func(self, *args, **kwargs)
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return wrapped
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class UserInterface:
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"""The input-remapper gtk window."""
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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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global_uinputs.prepare_all()
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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("input-remapper.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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self.editor = Editor(self)
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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: Gtk.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"input-remapper {VERSION} {COMMIT_HASH[:7]}"
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f"\npython-evdev {EVDEV_VERSION}"
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if EVDEV_VERSION
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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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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(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 input-remapper-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(11)
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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 = _("Are you sure to delete preset %s?") % 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 on_key_press(self, window, 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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if self.editor.is_waiting_for_input():
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# don't perform shortcuts while keys are being recorded
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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_stop_injecting_clicked()
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def on_key_release(self, window, 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 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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@ensure_everything_saved
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def on_close(self, *args):
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"""Safely close the application."""
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logger.debug("Closing window")
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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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@ensure_everything_saved
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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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group_name, preset = find_newest_preset()
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if group_name is not None:
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self.get("device_selection").set_active_id(group_name)
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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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@ensure_everything_saved
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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_inputremapper=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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@if_group_selected
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@ensure_everything_saved
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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 active_preset.
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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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active_preset.clear()
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path = self.group.get_preset_path(new_preset)
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active_preset.path = path
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active_preset.save()
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presets = [new_preset]
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else:
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logger.debug('"%s" presets: "%s"', self.group.name, '", "'.join(presets))
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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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@if_group_selected
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def can_modify_preset(self, *args) -> bool:
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"""if changing the preset is possible."""
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return self.dbus.get_state(self.group.key) != RUNNING
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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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combination = reader.read()
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if reader.are_new_groups_available():
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self.populate_devices()
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# giving editor its own interval and making it call reader.read itself causes
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# incredibly frustrating and miraculous problems. Do not do it. Observations:
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# - test_autocomplete_key fails if the gui has been launched and closed by a
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# previous test already
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# Maybe it has something to do with the order of editor.consume_newest_keycode
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# and user_interface.populate_devices.
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self.editor.consume_newest_keycode(combination)
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return True
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@if_group_selected
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def on_stop_injecting_clicked(self, *args):
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"""Stop injecting the preset."""
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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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max_length = 45
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if len(message) > max_length:
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message = message[: max_length - 3] + "..."
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status_bar.push(context_id, message)
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status_bar.set_tooltip_text(tooltip)
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@ensure_everything_saved
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def on_rename_button_clicked(self, button):
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"""Rename the preset based on the contents of the name input."""
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new_name = self.get("preset_name_input").get_text()
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if new_name in ["", self.preset_name]:
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return
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new_name = rename_preset(self.group.name, self.preset_name, new_name)
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active_preset.path = get_preset_path(self.group.name, new_name)
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# if the old preset was being autoloaded, change the
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# name there as well
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is_autoloaded = global_config.is_autoloaded(self.group.key, self.preset_name)
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if is_autoloaded:
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global_config.set_autoload_preset(self.group.key, new_name)
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self.get("preset_name_input").set_text("")
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self.populate_presets()
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@if_preset_selected
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def on_delete_preset_clicked(self, *args):
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"""Delete a preset from the file system."""
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accept = Gtk.ResponseType.ACCEPT
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if len(active_preset) > 0 and self.show_confirm_delete() != accept:
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return
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# avoid having the text of the symbol input leak into the active_preset again
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# via a gazillion hooks, causing the preset to be saved again after deleting.
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self.editor.clear()
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delete_preset(self.group.name, self.preset_name)
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self.populate_presets()
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@if_preset_selected
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def on_apply_preset_clicked(self, button):
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"""Apply a preset without saving changes."""
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self.save_preset()
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if len(active_preset) == 0:
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logger.error(_("Cannot apply empty preset file"))
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# also helpful for first time use
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self.show_status(CTX_ERROR, _("You need to add keys and save first"))
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return
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preset = self.preset_name
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logger.info('Applying preset "%s" for "%s"', preset, self.group.key)
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if not self.button_left_warn:
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if active_preset.dangerously_mapped_btn_left():
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self.show_status(
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CTX_ERROR,
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"This would disable your click button",
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"Map a button to BTN_LEFT to avoid this.\n"
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"To overwrite this warning, press apply again.",
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)
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self.button_left_warn = True
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return
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if not self.unreleased_warn:
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unreleased = reader.get_unreleased_keys()
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if unreleased is not None and unreleased != EventCombination(
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InputEvent.btn_left()
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):
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# it's super annoying if that happens and may break the user
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# input in such a way to prevent disabling the preset
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logger.error(
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"Tried to apply a preset while keys were held down: %s", unreleased
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)
|
|
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, switch, active):
|
|
"""Load the preset automatically next time the user logs in."""
|
|
key = self.group.key
|
|
preset = self.preset_name
|
|
global_config.set_autoload_preset(key, preset if active else None)
|
|
# tell the service to refresh its config
|
|
self.dbus.set_config_dir(get_config_path())
|
|
|
|
@ensure_everything_saved
|
|
def on_select_device(self, dropdown):
|
|
"""List all presets, create one if none exist yet."""
|
|
if self.group and dropdown.get_active_id() == self.group.key:
|
|
return
|
|
|
|
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 = _("Applied preset %s") % self.preset_name
|
|
|
|
if active_preset.get_mapping(EventCombination(InputEvent.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, _("Failed to apply preset %s") % 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
|
|
|
|
if state == UPGRADE_EVDEV:
|
|
self.show_status(
|
|
CTX_ERROR,
|
|
"Upgrade python-evdev",
|
|
"Your python-evdev version is too old.",
|
|
)
|
|
return False
|
|
|
|
# keep the timeout running until a relevant state is found
|
|
return True
|
|
|
|
def show_device_mapping_status(self):
|
|
"""Figure out if this device is currently under inputremappers control."""
|
|
self.editor.update_toggle_opacity()
|
|
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)
|
|
|
|
@if_preset_selected
|
|
def on_copy_preset_clicked(self, *args):
|
|
"""Copy the current preset and select it."""
|
|
self.create_preset(copy=True)
|
|
|
|
@if_group_selected
|
|
def on_create_preset_clicked(self, *args):
|
|
"""Create a new empty preset and select it."""
|
|
self.create_preset()
|
|
|
|
@ensure_everything_saved
|
|
def create_preset(self, copy=False):
|
|
"""Create a new preset and select it."""
|
|
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)
|
|
self.editor.clear()
|
|
active_preset.clear()
|
|
|
|
path = self.group.get_preset_path(new_preset)
|
|
active_preset.path = path
|
|
active_preset.save()
|
|
self.get("preset_selection").append(new_preset, new_preset)
|
|
# triggers on_select_preset
|
|
self.get("preset_selection").set_active_id(new_preset)
|
|
if self.get("preset_selection").get_active_id() != new_preset:
|
|
# for whatever reason I have to use set_active_id twice for this
|
|
# to work in tests all of the sudden
|
|
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)
|
|
|
|
@ensure_everything_saved
|
|
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
|
|
if dropdown.get_active_id() == self.preset_name:
|
|
return
|
|
|
|
preset = dropdown.get_active_text()
|
|
if preset is None:
|
|
return
|
|
|
|
logger.debug('Selecting preset "%s"', preset)
|
|
self.editor.clear_mapping_list()
|
|
self.preset_name = preset
|
|
active_preset.clear()
|
|
active_preset.path = self.group.get_preset_path(preset)
|
|
active_preset.load()
|
|
|
|
self.editor.load_custom_mapping()
|
|
|
|
autoload_switch = self.get("preset_autoload_switch")
|
|
|
|
with HandlerDisabled(autoload_switch, self.on_autoload_switch):
|
|
is_autoloaded = global_config.is_autoloaded(
|
|
self.group.key, self.preset_name
|
|
)
|
|
autoload_switch.set_active(is_autoloaded)
|
|
|
|
self.get("preset_name_input").set_text("")
|
|
|
|
def save_preset(self, *args):
|
|
"""Write changes in the active_preset to disk."""
|
|
if not active_preset.has_unsaved_changes():
|
|
# optimization, and also avoids tons of redundant logs
|
|
logger.debug("Not saving because preset did not change")
|
|
return
|
|
|
|
try:
|
|
assert self.preset_name is not None
|
|
active_preset.save()
|
|
|
|
# after saving the preset, 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)
|
|
|
|
self.show_status(CTX_MAPPING, None)
|
|
|
|
def on_about_clicked(self, button):
|
|
"""Show the about/help dialog."""
|
|
self.about.show()
|
|
|
|
def on_about_key_press(self, window, event):
|
|
"""Hide the about/help dialog."""
|
|
gdk_keycode = event.get_keyval()[1]
|
|
if gdk_keycode == Gdk.KEY_Escape:
|
|
self.about.hide()
|