mirror of
https://github.com/sezanzeb/input-remapper
synced 2024-11-08 07:10:36 +00:00
393 lines
12 KiB
Python
393 lines
12 KiB
Python
#!/usr/bin/python3
|
|
# -*- coding: utf-8 -*-
|
|
# key-mapper - GUI for device specific keyboard mappings
|
|
# Copyright (C) 2021 sezanzeb <proxima@sezanzeb.de>
|
|
#
|
|
# This file is part of key-mapper.
|
|
#
|
|
# key-mapper is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# key-mapper is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with key-mapper. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
|
|
"""A single, configurable key mapping."""
|
|
|
|
|
|
import evdev
|
|
from gi.repository import Gtk, GLib, Gdk
|
|
|
|
from keymapper.state import custom_mapping, system_mapping
|
|
from keymapper.logger import logger
|
|
from keymapper.key import Key
|
|
from keymapper.gui.reader import reader
|
|
|
|
|
|
CTX_KEYCODE = 2
|
|
|
|
|
|
store = Gtk.ListStore(str)
|
|
for name in system_mapping.list_names():
|
|
store.append([name])
|
|
|
|
for key in [
|
|
'mouse(up, 1)',
|
|
'mouse(down, 1)',
|
|
'mouse(left, 1)',
|
|
'mouse(right, 1)',
|
|
'wheel(up, 1)',
|
|
'wheel(down, 1)',
|
|
'wheel(left, 1)',
|
|
'wheel(right, 1)'
|
|
]:
|
|
# add some more keys to the dropdown list
|
|
store.append([key])
|
|
|
|
|
|
def to_string(key):
|
|
"""A nice to show description of the pressed key."""
|
|
if isinstance(key, Key):
|
|
return ' + '.join([to_string(sub_key) for sub_key in key])
|
|
|
|
if isinstance(key[0], tuple):
|
|
raise Exception('deprecated stuff')
|
|
|
|
ev_type, code, value = key
|
|
|
|
if ev_type not in evdev.ecodes.bytype:
|
|
logger.error('Unknown key type for %s', key)
|
|
return 'unknown'
|
|
|
|
if code not in evdev.ecodes.bytype[ev_type]:
|
|
logger.error('Unknown key code for %s', key)
|
|
return 'unknown'
|
|
|
|
key_name = None
|
|
|
|
# first try to find the name in xmodmap to not display wrong
|
|
# names due to the keyboard layout
|
|
if ev_type == evdev.ecodes.EV_KEY:
|
|
key_name = system_mapping.get_name(code)
|
|
|
|
if key_name is None:
|
|
# if no result, look in the linux key constants. On a german
|
|
# keyboard for example z and y are switched, which will therefore
|
|
# cause the wrong letter to be displayed.
|
|
key_name = evdev.ecodes.bytype[ev_type][code]
|
|
if isinstance(key_name, list):
|
|
key_name = key_name[0]
|
|
|
|
if ev_type != evdev.ecodes.EV_KEY:
|
|
direction = {
|
|
# D-Pad
|
|
(evdev.ecodes.ABS_HAT0X, -1): 'L',
|
|
(evdev.ecodes.ABS_HAT0X, 1): 'R',
|
|
(evdev.ecodes.ABS_HAT0Y, -1): 'U',
|
|
(evdev.ecodes.ABS_HAT0Y, 1): 'D',
|
|
(evdev.ecodes.ABS_HAT1X, -1): 'L',
|
|
(evdev.ecodes.ABS_HAT1X, 1): 'R',
|
|
(evdev.ecodes.ABS_HAT1Y, -1): 'U',
|
|
(evdev.ecodes.ABS_HAT1Y, 1): 'D',
|
|
(evdev.ecodes.ABS_HAT2X, -1): 'L',
|
|
(evdev.ecodes.ABS_HAT2X, 1): 'R',
|
|
(evdev.ecodes.ABS_HAT2Y, -1): 'U',
|
|
(evdev.ecodes.ABS_HAT2Y, 1): 'D',
|
|
# joystick
|
|
(evdev.ecodes.ABS_X, 1): 'R',
|
|
(evdev.ecodes.ABS_X, -1): 'L',
|
|
(evdev.ecodes.ABS_Y, 1): 'D',
|
|
(evdev.ecodes.ABS_Y, -1): 'U',
|
|
(evdev.ecodes.ABS_RX, 1): 'R',
|
|
(evdev.ecodes.ABS_RX, -1): 'L',
|
|
(evdev.ecodes.ABS_RY, 1): 'D',
|
|
(evdev.ecodes.ABS_RY, -1): 'U',
|
|
# wheel
|
|
(evdev.ecodes.REL_WHEEL, -1): 'D',
|
|
(evdev.ecodes.REL_WHEEL, 1): 'U',
|
|
(evdev.ecodes.REL_HWHEEL, -1): 'L',
|
|
(evdev.ecodes.REL_HWHEEL, 1): 'R',
|
|
}.get((code, value))
|
|
if direction is not None:
|
|
key_name += f' {direction}'
|
|
|
|
return key_name.replace('KEY_', '')
|
|
|
|
|
|
IDLE = 0
|
|
HOLDING = 1
|
|
|
|
|
|
class Row(Gtk.ListBoxRow):
|
|
"""A single, configurable key mapping."""
|
|
__gtype_name__ = 'ListBoxRow'
|
|
|
|
def __init__(self, delete_callback, window, key=None, character=None):
|
|
"""Construct a row widget.
|
|
|
|
Parameters
|
|
----------
|
|
key : Key
|
|
"""
|
|
if key is not None and not isinstance(key, Key):
|
|
raise TypeError('Expected key to be a Key object')
|
|
|
|
super().__init__()
|
|
self.device = window.selected_device
|
|
self.window = window
|
|
self.delete_callback = delete_callback
|
|
|
|
self.character_input = None
|
|
self.keycode_input = None
|
|
|
|
self.key = key
|
|
|
|
self.put_together(character)
|
|
|
|
self._state = IDLE
|
|
|
|
def refresh_state(self):
|
|
"""Refresh the state.
|
|
|
|
The state is needed to switch focus when no keys are held anymore,
|
|
but only if the row has been in the HOLDING state before.
|
|
"""
|
|
old_state = self._state
|
|
|
|
if not self.keycode_input.is_focus():
|
|
self._state = IDLE
|
|
return
|
|
|
|
unreleased_keys = reader.get_unreleased_keys()
|
|
if unreleased_keys is None and old_state == HOLDING and self.key:
|
|
# A key was pressed and then released.
|
|
# Switch to the character. idle_add this so that the
|
|
# keycode event won't write into the character input as well.
|
|
window = self.window.window
|
|
GLib.idle_add(lambda: window.set_focus(self.character_input))
|
|
|
|
if unreleased_keys is not None:
|
|
self._state = HOLDING
|
|
return
|
|
|
|
self._state = IDLE
|
|
|
|
def get_key(self):
|
|
"""Get the Key object from the left column.
|
|
|
|
Or None if no code is mapped on this row.
|
|
"""
|
|
return self.key
|
|
|
|
def get_character(self):
|
|
"""Get the assigned character from the middle column."""
|
|
character = self.character_input.get_text()
|
|
return character if character else None
|
|
|
|
def set_new_key(self, new_key):
|
|
"""Check if a keycode has been pressed and if so, display it.
|
|
|
|
Parameters
|
|
----------
|
|
new_key : Key
|
|
"""
|
|
if new_key is not None and not isinstance(new_key, Key):
|
|
raise TypeError('Expected new_key to be a Key object')
|
|
|
|
# the newest_keycode is populated since the ui regularly polls it
|
|
# in order to display it in the status bar.
|
|
previous_key = self.get_key()
|
|
|
|
# no input
|
|
if new_key is None:
|
|
return
|
|
|
|
# it might end up being a key combination
|
|
self._state = HOLDING
|
|
|
|
# keycode didn't change, do nothing
|
|
if new_key == previous_key:
|
|
return
|
|
|
|
# keycode is already set by some other row
|
|
existing = custom_mapping.get_character(new_key)
|
|
if existing is not None:
|
|
msg = f'"{to_string(new_key)}" already mapped to "{existing}"'
|
|
logger.info(msg)
|
|
self.window.show_status(CTX_KEYCODE, msg)
|
|
return
|
|
|
|
# it's legal to display the keycode
|
|
|
|
# always ask for get_child to set the label, otherwise line breaking
|
|
# has to be configured again.
|
|
self.set_keycode_input_label(to_string(new_key))
|
|
|
|
self.key = new_key
|
|
|
|
character = self.get_character()
|
|
|
|
# the character is empty and therefore the mapping is not complete
|
|
if character is None:
|
|
return
|
|
|
|
# else, the keycode has changed, the character is set, all good
|
|
custom_mapping.change(
|
|
new_key=new_key,
|
|
character=character,
|
|
previous_key=previous_key
|
|
)
|
|
|
|
def on_character_input_change(self, _):
|
|
"""When the output character for that keycode is typed in."""
|
|
key = self.get_key()
|
|
character = self.get_character()
|
|
|
|
if character is None:
|
|
return
|
|
|
|
if key is not None:
|
|
custom_mapping.change(
|
|
new_key=key,
|
|
character=character,
|
|
previous_key=None
|
|
)
|
|
|
|
def match(self, _, key, tree_iter):
|
|
"""Search the avilable names."""
|
|
value = store.get_value(tree_iter, 0)
|
|
return key in value.lower()
|
|
|
|
def show_click_here(self):
|
|
"""Show 'click here' on the keycode input button."""
|
|
if self.get_key() is not None:
|
|
return
|
|
|
|
self.set_keycode_input_label('click here')
|
|
self.keycode_input.set_opacity(0.3)
|
|
|
|
def show_press_key(self):
|
|
"""Show 'press key' on the keycode input button."""
|
|
if self.get_key() is not None:
|
|
return
|
|
|
|
self.set_keycode_input_label('press key')
|
|
self.keycode_input.set_opacity(1)
|
|
|
|
def on_keycode_input_focus(self, *_):
|
|
"""Refresh useful usage information."""
|
|
reader.clear()
|
|
self.show_press_key()
|
|
self.window.can_modify_mapping()
|
|
|
|
def on_keycode_input_unfocus(self, *_):
|
|
"""Refresh useful usage information and set some state stuff."""
|
|
self.show_click_here()
|
|
self.keycode_input.set_active(False)
|
|
self._state = IDLE
|
|
reader.clear()
|
|
self.window.save_preset()
|
|
|
|
def set_keycode_input_label(self, label):
|
|
"""Set the label of the keycode input."""
|
|
self.keycode_input.set_label(label)
|
|
# make the child label widget break lines, important for
|
|
# long combinations
|
|
label = self.keycode_input.get_child()
|
|
label.set_line_wrap(True)
|
|
label.set_line_wrap_mode(2)
|
|
label.set_max_width_chars(13)
|
|
label.set_justify(Gtk.Justification.CENTER)
|
|
|
|
def put_together(self, character):
|
|
"""Create all child GTK widgets and connect their signals."""
|
|
delete_button = Gtk.EventBox()
|
|
delete_button.add(Gtk.Image.new_from_icon_name(
|
|
'window-close',
|
|
Gtk.IconSize.BUTTON
|
|
))
|
|
delete_button.connect(
|
|
'button-press-event',
|
|
self.on_delete_button_clicked
|
|
)
|
|
delete_button.set_size_request(50, -1)
|
|
|
|
keycode_input = Gtk.ToggleButton()
|
|
self.keycode_input = keycode_input
|
|
keycode_input.set_size_request(140, -1)
|
|
|
|
if self.key is not None:
|
|
self.set_keycode_input_label(to_string(self.key))
|
|
else:
|
|
self.show_click_here()
|
|
|
|
# make the togglebutton go back to its normal state when doing
|
|
# something else in the UI
|
|
keycode_input.connect(
|
|
'focus-in-event',
|
|
self.on_keycode_input_focus
|
|
)
|
|
keycode_input.connect(
|
|
'focus-out-event',
|
|
self.on_keycode_input_unfocus
|
|
)
|
|
# don't leave the input when using arrow keys or tab. wait for the
|
|
# window to consume the keycode from the reader
|
|
keycode_input.connect(
|
|
'key-press-event',
|
|
lambda *args: Gdk.EVENT_STOP
|
|
)
|
|
|
|
character_input = Gtk.Entry()
|
|
self.character_input = character_input
|
|
character_input.set_alignment(0.5)
|
|
character_input.set_width_chars(4)
|
|
character_input.set_has_frame(False)
|
|
completion = Gtk.EntryCompletion()
|
|
completion.set_model(store)
|
|
completion.set_text_column(0)
|
|
completion.set_match_func(self.match)
|
|
character_input.set_completion(completion)
|
|
|
|
if character is not None:
|
|
character_input.set_text(character)
|
|
|
|
character_input.connect(
|
|
'changed',
|
|
self.on_character_input_change
|
|
)
|
|
character_input.connect(
|
|
'focus-out-event',
|
|
self.window.save_preset
|
|
)
|
|
|
|
box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
|
|
box.set_homogeneous(False)
|
|
box.set_spacing(0)
|
|
box.pack_start(keycode_input, expand=False, fill=True, padding=0)
|
|
box.pack_start(character_input, expand=True, fill=True, padding=0)
|
|
box.pack_start(delete_button, expand=False, fill=True, padding=0)
|
|
box.show_all()
|
|
box.get_style_context().add_class('row-box')
|
|
|
|
self.add(box)
|
|
self.show_all()
|
|
|
|
def on_delete_button_clicked(self, *_):
|
|
"""Destroy the row and remove it from the config."""
|
|
key = self.get_key()
|
|
if key is not None:
|
|
custom_mapping.clear(key)
|
|
|
|
self.character_input.set_text('')
|
|
self.set_keycode_input_label('')
|
|
self.key = None
|
|
self.delete_callback(self)
|