mirror of
https://github.com/sezanzeb/input-remapper
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421 lines
14 KiB
Python
421 lines
14 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# key-mapper - GUI for device specific keyboard mappings
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# Copyright (C) 2020 sezanzeb <proxima@hip70890b.de>
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#
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# This file is part of key-mapper.
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#
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# key-mapper is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# key-mapper is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with key-mapper. If not, see <https://www.gnu.org/licenses/>.
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import asyncio
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import unittest
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import time
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import evdev
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from evdev.ecodes import EV_REL, EV_KEY, EV_ABS, ABS_HAT0X
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from keymapper.dev.injector import is_numlock_on, toggle_numlock, \
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ensure_numlock, KeycodeInjector
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from keymapper.dev.keycode_mapper import handle_keycode
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from keymapper.state import custom_mapping, system_mapping, \
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clear_system_mapping
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from keymapper.mapping import Mapping
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from keymapper.config import config
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from keymapper.dev.macros import parse
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from tests.test import Event, pending_events, fixtures, \
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clear_write_history, EVENT_READ_TIMEOUT, uinput_write_history_pipe, \
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MAX_ABS
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class TestInjector(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.injector = None
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cls.grab = evdev.InputDevice.grab
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def setUp(self):
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self.failed = 0
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self.make_it_fail = 2
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def grab_fail_twice(_):
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if self.failed < self.make_it_fail:
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self.failed += 1
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raise OSError()
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evdev.InputDevice.grab = grab_fail_twice
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def tearDown(self):
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if self.injector is not None:
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self.injector.stop_injecting()
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self.injector = None
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evdev.InputDevice.grab = self.grab
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keys = list(pending_events.keys())
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for key in keys:
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del pending_events[key]
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clear_write_history()
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custom_mapping.empty()
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def test_modify_capabilities(self):
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class FakeDevice:
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def capabilities(self, absinfo=True):
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assert absinfo is False
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return {
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evdev.ecodes.EV_SYN: [1, 2, 3],
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evdev.ecodes.EV_FF: [1, 2, 3]
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}
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mapping = Mapping()
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mapping.change((EV_KEY, 80), 'a')
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# going to be ignored
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mapping.change((EV_REL, 1234), 'b')
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maps_to = system_mapping['a']
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self.injector = KeycodeInjector('foo', mapping)
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fake_device = FakeDevice()
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capabilities = self.injector._modify_capabilities(
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fake_device,
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abs_to_rel=False
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)
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self.assertIn(EV_KEY, capabilities)
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keys = capabilities[EV_KEY]
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self.assertEqual(keys[0], maps_to)
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self.assertNotIn(evdev.ecodes.EV_SYN, capabilities)
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self.assertNotIn(evdev.ecodes.EV_FF, capabilities)
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self.assertNotIn(evdev.ecodes.EV_REL, capabilities)
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def test_grab(self):
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# path is from the fixtures
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custom_mapping.change((EV_KEY, 10), 'a')
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self.injector = KeycodeInjector('device 1', custom_mapping)
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path = '/dev/input/event10'
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# this test needs to pass around all other constraints of
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# _prepare_device
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device, abs_to_rel = self.injector._prepare_device(path)
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self.assertFalse(abs_to_rel)
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self.assertEqual(self.failed, 2)
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# success on the third try
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device.name = fixtures[path]['name']
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def test_fail_grab(self):
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self.make_it_fail = 10
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custom_mapping.change((EV_KEY, 10), 'a')
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self.injector = KeycodeInjector('device 1', custom_mapping)
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path = '/dev/input/event10'
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device, abs_to_rel = self.injector._prepare_device(path)
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self.assertFalse(abs_to_rel)
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self.assertGreaterEqual(self.failed, 1)
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self.assertIsNone(device)
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self.injector.start_injecting()
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# since none can be grabbed, the process will terminate. But that
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# actually takes quite some time.
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time.sleep(1.5)
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self.assertFalse(self.injector._process.is_alive())
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def test_prepare_device_1(self):
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# according to the fixtures, /dev/input/event30 can do ABS_HAT0X
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custom_mapping.change((EV_ABS, ABS_HAT0X), 'a')
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self.injector = KeycodeInjector('foobar', custom_mapping)
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_prepare_device = self.injector._prepare_device
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self.assertIsNone(_prepare_device('/dev/input/event10')[0])
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self.assertIsNotNone(_prepare_device('/dev/input/event30')[0])
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def test_prepare_device_non_existing(self):
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custom_mapping.change((EV_ABS, ABS_HAT0X), 'a')
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self.injector = KeycodeInjector('foobar', custom_mapping)
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_prepare_device = self.injector._prepare_device
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self.assertIsNone(_prepare_device('/dev/input/event1234')[0])
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def test_gamepad_capabilities(self):
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self.injector = KeycodeInjector('gamepad', custom_mapping)
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path = '/dev/input/event30'
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device, abs_to_rel = self.injector._prepare_device(path)
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self.assertTrue(abs_to_rel)
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capabilities = self.injector._modify_capabilities(device, abs_to_rel)
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self.assertNotIn(evdev.ecodes.EV_ABS, capabilities)
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self.assertIn(evdev.ecodes.EV_REL, capabilities)
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# for some reason, having any EV_KEY capability is needed to
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# be able to control the mouse
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self.assertIn(evdev.ecodes.EV_KEY, capabilities)
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self.assertEqual(len(capabilities[evdev.ecodes.EV_KEY]), 1)
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def test_skip_unused_device(self):
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# skips a device because its capabilities are not used in the mapping
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custom_mapping.change((EV_KEY, 10), 'a')
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self.injector = KeycodeInjector('device 1', custom_mapping)
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path = '/dev/input/event11'
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device, abs_to_rel = self.injector._prepare_device(path)
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self.assertFalse(abs_to_rel)
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self.assertEqual(self.failed, 0)
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self.assertIsNone(device)
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def test_skip_unknown_device(self):
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# skips a device because its capabilities are not used in the mapping
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self.injector = KeycodeInjector('device 1', custom_mapping)
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path = '/dev/input/event11'
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device, _ = self.injector._prepare_device(path)
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# make sure the test uses a fixture without interesting capabilities
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capabilities = evdev.InputDevice(path).capabilities()
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self.assertEqual(len(capabilities.get(EV_KEY, [])), 0)
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self.assertEqual(len(capabilities.get(EV_ABS, [])), 0)
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# skips the device alltogether, so no grab attempts fail
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self.assertEqual(self.failed, 0)
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self.assertIsNone(device)
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def test_numlock(self):
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before = is_numlock_on()
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toggle_numlock() # should change
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self.assertEqual(not before, is_numlock_on())
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@ensure_numlock
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def wrapped_1():
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toggle_numlock()
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@ensure_numlock
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def wrapped_2():
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pass
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# should not change
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wrapped_1()
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self.assertEqual(not before, is_numlock_on())
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wrapped_2()
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self.assertEqual(not before, is_numlock_on())
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# toggle one more time to restore the previous configuration
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toggle_numlock()
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self.assertEqual(before, is_numlock_on())
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def test_abs_to_rel(self):
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# maps gamepad joystick events to mouse events
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config.set('gamepad.joystick.non_linearity', 1)
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pointer_speed = 80
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config.set('gamepad.joystick.pointer_speed', pointer_speed)
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# same for ABS, 0 for x, 1 for y
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rel_x = evdev.ecodes.REL_X
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rel_y = evdev.ecodes.REL_Y
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# they need to sum up before something is written
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divisor = 10
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x = MAX_ABS / pointer_speed / divisor
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y = MAX_ABS / pointer_speed / divisor
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pending_events['gamepad'] = [
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Event(EV_ABS, rel_x, x),
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Event(EV_ABS, rel_y, y),
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Event(EV_ABS, rel_x, -x),
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Event(EV_ABS, rel_y, -y),
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]
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self.injector = KeycodeInjector('gamepad', custom_mapping)
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self.injector.start_injecting()
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# wait for the injector to start sending, at most 1s
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uinput_write_history_pipe[0].poll(1)
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# wait a bit more for it to sum up
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sleep = 0.5
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time.sleep(sleep)
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# convert the write history to some easier to manage list
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history = []
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while uinput_write_history_pipe[0].poll():
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event = uinput_write_history_pipe[0].recv()
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history.append((event.type, event.code, event.value))
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if history[0][0] == EV_ABS:
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raise AssertionError(
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'The injector probably just forwarded them unchanged'
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)
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# movement is written at 60hz and it takes `divisor` steps to
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# move 1px. take it times 2 for both x and y events.
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self.assertGreater(len(history), 60 * sleep * 0.9 * 2 / divisor)
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self.assertLess(len(history), 60 * sleep * 1.1 * 2 / divisor)
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# those may be in arbitrary order, the injector happens to write
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# y first
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self.assertEqual(history[-1][0], EV_REL)
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self.assertEqual(history[-1][1], rel_x)
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self.assertAlmostEqual(history[-1][2], -1)
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self.assertEqual(history[-2][0], EV_REL)
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self.assertEqual(history[-2][1], rel_y)
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self.assertAlmostEqual(history[-2][2], -1)
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def test_handle_keycode(self):
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code_code_mapping = {
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1: 101,
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2: 102
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}
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history = []
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class UInput:
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def write(self, type, code, value):
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history.append((type, code, value))
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def syn(self):
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pass
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uinput = UInput()
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EV_KEY = evdev.ecodes.EV_KEY
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handle_keycode(code_code_mapping, {}, Event(EV_KEY, 1, 1), uinput)
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handle_keycode(code_code_mapping, {}, Event(EV_KEY, 3, 1), uinput)
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handle_keycode(code_code_mapping, {}, Event(EV_KEY, 2, 1), uinput)
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self.assertEqual(len(history), 3)
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self.assertEqual(history[0], (EV_KEY, 101, 1))
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self.assertEqual(history[1], (EV_KEY, 3, 1))
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self.assertEqual(history[2], (EV_KEY, 102, 1))
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def test_handle_keycode_macro(self):
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history = []
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macro_mapping = {
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1: parse('k(a)', lambda *args: history.append(args)),
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2: parse('r(5, k(b))', lambda *args: history.append(args))
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}
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code_a = 100
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code_b = 101
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system_mapping['a'] = code_a
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system_mapping['b'] = code_b
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clear_system_mapping()
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EV_KEY = evdev.ecodes.EV_KEY
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handle_keycode({}, macro_mapping, Event(EV_KEY, 1, 1), None)
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handle_keycode({}, macro_mapping, Event(EV_KEY, 2, 1), None)
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loop = asyncio.get_event_loop()
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sleeptime = config.get('macros.keystroke_sleep_ms', 10) * 12
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async def sleep():
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await asyncio.sleep(sleeptime / 1000 + 0.1)
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loop.run_until_complete(sleep())
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# 6 keycodes written, with down and up events
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self.assertEqual(len(history), 12)
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self.assertIn(('a', 1), history)
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self.assertIn(('a', 0), history)
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self.assertIn(('b', 1), history)
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self.assertIn(('b', 0), history)
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def test_injector(self):
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custom_mapping.change((EV_KEY, 8), 'k(KEY_Q).k(w)')
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custom_mapping.change((EV_ABS, ABS_HAT0X), 'a')
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# one mapping that is unknown in the system_mapping on purpose
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input_b = 10
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custom_mapping.change((EV_KEY, input_b), 'b')
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clear_system_mapping()
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code_a = 100
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code_q = 101
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code_w = 102
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system_mapping['a'] = code_a
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system_mapping['KEY_Q'] = code_q
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system_mapping['w'] = code_w
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# the second arg of those event objects is 8 lower than the
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# keycode used in X and in the mappings
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pending_events['device 2'] = [
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# should execute a macro
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Event(EV_KEY, 8, 1),
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Event(EV_KEY, 8, 0),
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# normal keystrokes
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Event(EV_ABS, ABS_HAT0X, 1),
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Event(EV_ABS, ABS_HAT0X, 0),
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# just pass those over without modifying
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Event(EV_KEY, 10, 1),
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Event(EV_KEY, 10, 0),
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Event(3124, 3564, 6542),
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]
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self.injector = KeycodeInjector('device 2', custom_mapping)
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self.injector.start_injecting()
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uinput_write_history_pipe[0].poll(timeout=1)
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time.sleep(EVENT_READ_TIMEOUT * 10)
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# sending anything arbitrary does not stop the process
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# (is_alive checked later after some time)
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self.injector._msg_pipe[1].send(1234)
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# convert the write history to some easier to manage list
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history = []
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while uinput_write_history_pipe[0].poll():
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event = uinput_write_history_pipe[0].recv()
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history.append((event.type, event.code, event.value))
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# 4 events for the macro
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# 2 for mapped keys
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# 3 for forwarded events
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self.assertEqual(len(history), 9)
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# since the macro takes a little bit of time to execute, its
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# keystrokes are all over the place.
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# just check if they are there and if so, remove them from the list.
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ev_key = EV_KEY
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self.assertIn((ev_key, code_q, 1), history)
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self.assertIn((ev_key, code_q, 0), history)
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self.assertIn((ev_key, code_w, 1), history)
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self.assertIn((ev_key, code_w, 0), history)
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index_q_1 = history.index((ev_key, code_q, 1))
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index_q_0 = history.index((ev_key, code_q, 0))
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index_w_1 = history.index((ev_key, code_w, 1))
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index_w_0 = history.index((ev_key, code_w, 0))
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self.assertGreater(index_q_0, index_q_1)
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self.assertGreater(index_w_1, index_q_0)
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self.assertGreater(index_w_0, index_w_1)
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del history[index_q_1]
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index_q_0 = history.index((ev_key, code_q, 0))
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del history[index_q_0]
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index_w_1 = history.index((ev_key, code_w, 1))
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del history[index_w_1]
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index_w_0 = history.index((ev_key, code_w, 0))
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del history[index_w_0]
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# the rest should be in order.
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self.assertEqual(history[0], (ev_key, code_a, 1))
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self.assertEqual(history[1], (ev_key, code_a, 0))
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self.assertEqual(history[2], (ev_key, input_b, 1))
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self.assertEqual(history[3], (ev_key, input_b, 0))
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self.assertEqual(history[4], (3124, 3564, 6542))
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time.sleep(0.1)
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self.assertTrue(self.injector._process.is_alive())
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if __name__ == "__main__":
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unittest.main()
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