class TestInjector(unittest.TestCase):
new_gamepad_path = '/dev/input/event100'
@classmethod
def setUpClass(cls):
cls.injector = None
cls.grab = evdev.InputDevice.grab
def setUp(self):
self.failed = 0
self.make_it_fail = 2
def grab_fail_twice(_):
if self.failed < self.make_it_fail:
self.failed += 1
raise OSError()
evdev.InputDevice.grab = grab_fail_twice
def tearDown(self):
if self.injector is not None:
self.injector.stop_injecting()
self.assertEqual(self.injector.get_state(), STOPPED)
self.injector = None
evdev.InputDevice.grab = self.grab
quick_cleanup()
def test_grab(self):
# path is from the fixtures
path = '/dev/input/event10'
custom_mapping.change(Key(EV_KEY, 10, 1), 'a')
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
# this test needs to pass around all other constraints of
# _grab_device
self.injector.context = Context(custom_mapping)
device = self.injector._grab_device(path)
gamepad = classify(device) == GAMEPAD
self.assertFalse(gamepad)
self.assertEqual(self.failed, 2)
# success on the third try
self.assertEqual(device.name, fixtures[path]['name'])
def test_fail_grab(self):
self.make_it_fail = 999
custom_mapping.change(Key(EV_KEY, 10, 1), 'a')
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
path = '/dev/input/event10'
self.injector.context = Context(custom_mapping)
device = self.injector._grab_device(path)
self.assertIsNone(device)
self.assertGreaterEqual(self.failed, 1)
self.assertEqual(self.injector.get_state(), UNKNOWN)
self.injector.start()
self.assertEqual(self.injector.get_state(), STARTING)
# since none can be grabbed, the process will terminate. But that
# actually takes quite some time.
time.sleep(self.injector.regrab_timeout * 12)
self.assertFalse(self.injector.is_alive())
self.assertEqual(self.injector.get_state(), NO_GRAB)
def test_grab_device_1(self):
custom_mapping.change(Key(EV_ABS, ABS_HAT0X, 1), 'a')
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.context = Context(custom_mapping)
_grab_device = self.injector._grab_device
# doesn't have the required capability
self.assertIsNone(_grab_device('/dev/input/event10'))
# according to the fixtures, /dev/input/event30 can do ABS_HAT0X
self.assertIsNotNone(_grab_device('/dev/input/event30'))
# this doesn't exist
self.assertIsNone(_grab_device('/dev/input/event1234'))
def test_gamepad_capabilities(self):
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
# give the injector a reason to grab the device
custom_mapping.set('gamepad.joystick.left_purpose', MOUSE)
self.injector.context = Context(custom_mapping)
path = '/dev/input/event30'
device = self.injector._grab_device(path)
gamepad = classify(device) == GAMEPAD
self.assertIsNotNone(device)
self.assertTrue(gamepad)
capabilities = self.injector._construct_capabilities(gamepad)
self.assertNotIn(EV_ABS, capabilities)
self.assertIn(EV_REL, capabilities)
self.assertIn(evdev.ecodes.REL_X, capabilities.get(EV_REL))
self.assertIn(evdev.ecodes.REL_Y, capabilities.get(EV_REL))
self.assertIn(evdev.ecodes.REL_WHEEL, capabilities.get(EV_REL))
self.assertIn(evdev.ecodes.REL_HWHEEL, capabilities.get(EV_REL))
self.assertIn(EV_KEY, capabilities)
self.assertIn(evdev.ecodes.BTN_LEFT, capabilities[EV_KEY])
def test_gamepad_purpose_none(self):
# forward abs joystick events
custom_mapping.set('gamepad.joystick.left_purpose', NONE)
config.set('gamepad.joystick.right_purpose', NONE)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.context = Context(custom_mapping)
path = '/dev/input/event30'
device = self.injector._grab_device(path)
self.assertIsNone(device) # no capability is used, so it won't grab
custom_mapping.change(Key(EV_KEY, BTN_A, 1), 'a')
device = self.injector._grab_device(path)
self.assertIsNotNone(device)
gamepad = classify(device) == GAMEPAD
self.assertTrue(gamepad)
capabilities = self.injector._construct_capabilities(gamepad)
self.assertNotIn(EV_ABS, capabilities)
def test_gamepad_purpose_none_2(self):
# forward abs joystick events for the left joystick only
custom_mapping.set('gamepad.joystick.left_purpose', NONE)
config.set('gamepad.joystick.right_purpose', MOUSE)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.context = Context(custom_mapping)
path = '/dev/input/event30'
device = self.injector._grab_device(path)
# the right joystick maps as mouse, so it is grabbed
# even with an empty mapping
self.assertIsNotNone(device)
gamepad = classify(device) == GAMEPAD
self.assertTrue(gamepad)
capabilities = self.injector._construct_capabilities(gamepad)
self.assertNotIn(EV_ABS, capabilities)
self.assertIn(EV_REL, capabilities)
custom_mapping.change(Key(EV_KEY, BTN_A, 1), 'a')
device = self.injector._grab_device(path)
gamepad = classify(device) == GAMEPAD
self.assertIsNotNone(device)
self.assertTrue(gamepad)
capabilities = self.injector._construct_capabilities(gamepad)
self.assertNotIn(EV_ABS, capabilities)
self.assertIn(EV_REL, capabilities)
self.assertIn(EV_KEY, capabilities)
def test_adds_ev_key(self):
# for some reason, having any EV_KEY capability is needed to
# be able to control the mouse. it probably wants the mouse click.
custom_mapping.change(Key(EV_KEY, BTN_A, 1), 'a')
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
custom_mapping.set('gamepad.joystick.left_purpose', MOUSE)
self.injector.context = Context(custom_mapping)
"""ABS device without any key capability"""
path = self.new_gamepad_path
gamepad_template = copy.deepcopy(fixtures['/dev/input/event30'])
fixtures[path] = {
'name': 'qux 2',
'phys': 'abcd',
'info': '1234',
'capabilities': gamepad_template['capabilities']
}
del fixtures[path]['capabilities'][EV_KEY]
device = self.injector._grab_device(path)
# no reason to grab, BTN_A capability is missing in the device
self.assertIsNone(device)
"""ABS device with a btn_mouse capability"""
path = self.new_gamepad_path
gamepad_template = copy.deepcopy(fixtures['/dev/input/event30'])
fixtures[path] = {
'name': 'qux 3',
'phys': 'abcd',
'info': '1234',
'capabilities': gamepad_template['capabilities']
}
fixtures[path]['capabilities'][EV_KEY].append(BTN_LEFT)
fixtures[path]['capabilities'][EV_KEY].append(KEY_A)
device = self.injector._grab_device(path)
gamepad = classify(device) == GAMEPAD
capabilities = self.injector._construct_capabilities(gamepad)
self.assertIn(EV_KEY, capabilities)
self.assertIn(evdev.ecodes.BTN_MOUSE, capabilities[EV_KEY])
self.assertIn(evdev.ecodes.KEY_A, capabilities[EV_KEY])
"""a gamepad"""
path = '/dev/input/event30'
device = self.injector._grab_device(path)
gamepad = classify(device) == GAMEPAD
self.assertIn(EV_KEY, device.capabilities())
self.assertNotIn(evdev.ecodes.BTN_MOUSE, device.capabilities()[EV_KEY])
capabilities = self.injector._construct_capabilities(gamepad)
self.assertIn(EV_KEY, capabilities)
self.assertGreater(len(capabilities), 1)
self.assertIn(evdev.ecodes.BTN_MOUSE, capabilities[EV_KEY])
def test_skip_unused_device(self):
# skips a device because its capabilities are not used in the mapping
custom_mapping.change(Key(EV_KEY, 10, 1), 'a')
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
self.injector.context = Context(custom_mapping)
path = '/dev/input/event11'
device = self.injector._grab_device(path)
self.assertIsNone(device)
self.assertEqual(self.failed, 0)
def test_skip_unknown_device(self):
custom_mapping.change(Key(EV_KEY, 10, 1), 'a')
# skips a device because its capabilities are not used in the mapping
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
self.injector.context = Context(custom_mapping)
path = '/dev/input/event11'
device = self.injector._grab_device(path)
# skips the device alltogether, so no grab attempts fail
self.assertEqual(self.failed, 0)
self.assertIsNone(device)
def test_numlock(self):
before = is_numlock_on()
set_numlock(not before) # should change
self.assertEqual(not before, is_numlock_on())
@ensure_numlock
def wrapped_1():
set_numlock(not is_numlock_on())
@ensure_numlock
def wrapped_2():
pass
# should not change
wrapped_1()
self.assertEqual(not before, is_numlock_on())
wrapped_2()
self.assertEqual(not before, is_numlock_on())
# toggle one more time to restore the previous configuration
set_numlock(before)
self.assertEqual(before, is_numlock_on())
def test_gamepad_to_mouse(self):
# maps gamepad joystick events to mouse events
config.set('gamepad.joystick.non_linearity', 1)
pointer_speed = 80
config.set('gamepad.joystick.pointer_speed', pointer_speed)
config.set('gamepad.joystick.left_purpose', MOUSE)
# they need to sum up before something is written
divisor = 10
x = MAX_ABS / pointer_speed / divisor
y = MAX_ABS / pointer_speed / divisor
push_events('gamepad', [
new_event(EV_ABS, ABS_X, x),
new_event(EV_ABS, ABS_Y, y),
new_event(EV_ABS, ABS_X, -x),
new_event(EV_ABS, ABS_Y, -y),
])
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.start()
# wait for the injector to start sending, at most 1s
uinput_write_history_pipe[0].poll(1)
# wait a bit more for it to sum up
sleep = 0.5
time.sleep(sleep)
# convert the write history to some easier to manage list
history = read_write_history_pipe()
if history[0][0] == EV_ABS:
raise AssertionError(
'The injector probably just forwarded them unchanged'
# possibly in addition to writing mouse events
)
# movement is written at 60hz and it takes `divisor` steps to
# move 1px. take it times 2 for both x and y events.
self.assertGreater(len(history), 60 * sleep * 0.9 * 2 / divisor)
self.assertLess(len(history), 60 * sleep * 1.1 * 2 / divisor)
# those may be in arbitrary order
count_x = history.count((EV_REL, REL_X, -1))
count_y = history.count((EV_REL, REL_Y, -1))
self.assertGreater(count_x, 1)
self.assertGreater(count_y, 1)
# only those two types of events were written
self.assertEqual(len(history), count_x + count_y)
def test_gamepad_forward_joysticks(self):
push_events(
'gamepad',
[
# should forward them unmodified
new_event(EV_ABS, ABS_X, 10),
new_event(EV_ABS, ABS_Y, 20),
new_event(EV_ABS, ABS_X, -30),
new_event(EV_ABS, ABS_Y, -40),
new_event(EV_KEY, BTN_A, 1),
new_event(EV_KEY, BTN_A, 0)
] * 2)
custom_mapping.set('gamepad.joystick.left_purpose', NONE)
custom_mapping.set('gamepad.joystick.right_purpose', NONE)
# BTN_A -> 77
custom_mapping.change(Key((1, BTN_A, 1)), 'b')
system_mapping._set('b', 77)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.start()
# wait for the injector to start sending, at most 1s
uinput_write_history_pipe[0].poll(1)
time.sleep(0.2)
# convert the write history to some easier to manage list
history = read_write_history_pipe()
self.assertEqual(history.count((EV_ABS, ABS_X, 10)), 2)
self.assertEqual(history.count((EV_ABS, ABS_Y, 20)), 2)
self.assertEqual(history.count((EV_ABS, ABS_X, -30)), 2)
self.assertEqual(history.count((EV_ABS, ABS_Y, -40)), 2)
self.assertEqual(history.count((EV_KEY, 77, 1)), 2)
self.assertEqual(history.count((EV_KEY, 77, 0)), 2)
def test_gamepad_trigger(self):
# map one of the triggers to BTN_NORTH, while the other one
# should be forwarded unchanged
value = MAX_ABS // 2
push_events('gamepad', [
new_event(EV_ABS, ABS_Z, value),
new_event(EV_ABS, ABS_RZ, value),
])
# ABS_Z -> 77
# ABS_RZ is not mapped
custom_mapping.change(Key((EV_ABS, ABS_Z, 1)), 'b')
system_mapping._set('b', 77)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.start()
# wait for the injector to start sending, at most 1s
uinput_write_history_pipe[0].poll(1)
time.sleep(0.2)
# convert the write history to some easier to manage list
history = read_write_history_pipe()
self.assertEqual(history.count((EV_KEY, 77, 1)), 1)
self.assertEqual(history.count((EV_ABS, ABS_RZ, value)), 1)
@mock.patch('evdev.InputDevice.ungrab')
def test_gamepad_to_mouse_event_producer(self, ungrab_patch):
custom_mapping.set('gamepad.joystick.left_purpose', MOUSE)
custom_mapping.set('gamepad.joystick.right_purpose', NONE)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
# the stop message will be available in the pipe right away,
# so run won't block and just stop. all the stuff
# will be initialized though, so that stuff can be tested
self.injector.stop_injecting()
# the context serves no purpose in the main process
self.assertIsNone(self.injector.context)
self.injector.run()
# not in a process, so the event_producer state can be checked
self.assertEqual(self.injector._event_producer.abs_range[0], MIN_ABS)
self.assertEqual(self.injector._event_producer.abs_range[1], MAX_ABS)
self.assertEqual(
self.injector.context.mapping.get('gamepad.joystick.left_purpose'),
MOUSE)
self.assertEqual(ungrab_patch.call_count, 1)
def test_gamepad_to_buttons_event_producer(self):
custom_mapping.set('gamepad.joystick.left_purpose', BUTTONS)
custom_mapping.set('gamepad.joystick.right_purpose', BUTTONS)
self.injector = Injector(groups.find(name='gamepad'), custom_mapping)
self.injector.stop_injecting()
self.injector.run()
self.assertIsNone(self.injector._event_producer.abs_range)
def test_device1_event_producer(self):
custom_mapping.set('gamepad.joystick.left_purpose', MOUSE)
custom_mapping.set('gamepad.joystick.right_purpose', WHEEL)
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
self.injector.stop_injecting()
self.injector.run()
# not a gamepad, so _event_producer is not initialized for that.
# it can still debounce stuff though
self.assertIsNone(self.injector._event_producer.abs_range)
def test_get_udev_name(self):
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
suffix = 'mapped'
prefix = 'key-mapper'
expected = f'{prefix} {"a" * (80 - len(suffix) - len(prefix) - 2)} {suffix}'
self.assertEqual(len(expected), 80)
self.assertEqual(self.injector.get_udev_name('a' * 100, suffix),
expected)
self.injector.device = 'abcd'
self.assertEqual(self.injector.get_udev_name('abcd', 'forwarded'),
'key-mapper abcd forwarded')
@mock.patch('evdev.InputDevice.ungrab')
def test_capabilities_and_uinput_presence(self, ungrab_patch):
custom_mapping.change(Key(EV_KEY, KEY_A, 1), 'c')
custom_mapping.change(Key(EV_REL, REL_HWHEEL, 1), 'k(b)')
self.injector = Injector(groups.find(key='Foo Device 2'),
custom_mapping)
self.injector.stop_injecting()
self.injector.run()
self.assertEqual(
self.injector.context.mapping.get_symbol(Key(EV_KEY, KEY_A, 1)),
'c')
self.assertEqual(
self.injector.context.key_to_code[((EV_KEY, KEY_A, 1), )], KEY_C)
self.assertEqual(
self.injector.context.mapping.get_symbol(Key(
EV_REL, REL_HWHEEL, 1)), 'k(b)')
self.assertEqual(
self.injector.context.macros[((EV_REL, REL_HWHEEL, 1), )].code,
'k(b)')
self.assertListEqual(
sorted(uinputs.keys()),
sorted([
# reading and preventing original events from reaching the
# display server
'key-mapper Foo Device foo forwarded',
'key-mapper Foo Device forwarded',
# injection
'key-mapper Foo Device 2 mapped'
]))
forwarded_foo = uinputs.get('key-mapper Foo Device foo forwarded')
forwarded = uinputs.get('key-mapper Foo Device forwarded')
mapped = uinputs.get('key-mapper Foo Device 2 mapped')
self.assertIsNotNone(forwarded_foo)
self.assertIsNotNone(forwarded)
self.assertIsNotNone(mapped)
# puts the needed capabilities into the new key-mapper device
self.assertIn(EV_KEY, mapped.capabilities())
self.assertEqual(len(mapped.capabilities()[EV_KEY]), 2)
self.assertIn(KEY_C, mapped.capabilities()[EV_KEY])
self.assertIn(KEY_B, mapped.capabilities()[EV_KEY])
# not a gamepad that maps joysticks to mouse movements
self.assertNotIn(EV_REL, mapped.capabilities())
# copies capabilities for all other forwarded devices
self.assertIn(EV_REL, forwarded_foo.capabilities())
self.assertIn(EV_KEY, forwarded.capabilities())
self.assertEqual(sorted(forwarded.capabilities()[EV_KEY]),
keyboard_keys)
self.assertEqual(ungrab_patch.call_count, 2)
def test_injector(self):
# the tests in test_keycode_mapper.py test this stuff in detail
numlock_before = is_numlock_on()
combination = Key((EV_KEY, 8, 1), (EV_KEY, 9, 1))
custom_mapping.change(combination, 'k(KEY_Q).k(w)')
custom_mapping.change(Key(EV_ABS, ABS_HAT0X, -1), 'a')
# one mapping that is unknown in the system_mapping on purpose
input_b = 10
custom_mapping.change(Key(EV_KEY, input_b, 1), 'b')
# stuff the custom_mapping outputs (except for the unknown b)
system_mapping.clear()
code_a = 100
code_q = 101
code_w = 102
system_mapping._set('a', code_a)
system_mapping._set('key_q', code_q)
system_mapping._set('w', code_w)
push_events(
'Bar Device',
[
# should execute a macro...
new_event(EV_KEY, 8, 1),
new_event(EV_KEY, 9, 1), # ...now
new_event(EV_KEY, 8, 0),
new_event(EV_KEY, 9, 0),
# gamepad stuff. trigger a combination
new_event(EV_ABS, ABS_HAT0X, -1),
new_event(EV_ABS, ABS_HAT0X, 0),
# just pass those over without modifying
new_event(EV_KEY, 10, 1),
new_event(EV_KEY, 10, 0),
new_event(3124, 3564, 6542),
])
self.injector = Injector(groups.find(name='Bar Device'),
custom_mapping)
self.assertEqual(self.injector.get_state(), UNKNOWN)
self.injector.start()
self.assertEqual(self.injector.get_state(), STARTING)
uinput_write_history_pipe[0].poll(timeout=1)
self.assertEqual(self.injector.get_state(), RUNNING)
time.sleep(EVENT_READ_TIMEOUT * 10)
# sending anything arbitrary does not stop the process
# (is_alive checked later after some time)
self.injector._msg_pipe[1].send(1234)
# convert the write history to some easier to manage list
history = read_write_history_pipe()
# 1 event before the combination was triggered (+1 for release)
# 4 events for the macro
# 2 for mapped keys
# 3 for forwarded events
self.assertEqual(len(history), 11)
# since the macro takes a little bit of time to execute, its
# keystrokes are all over the place.
# just check if they are there and if so, remove them from the list.
self.assertIn((EV_KEY, 8, 1), history)
self.assertIn((EV_KEY, code_q, 1), history)
self.assertIn((EV_KEY, code_q, 1), history)
self.assertIn((EV_KEY, code_q, 0), history)
self.assertIn((EV_KEY, code_w, 1), history)
self.assertIn((EV_KEY, code_w, 0), history)
index_q_1 = history.index((EV_KEY, code_q, 1))
index_q_0 = history.index((EV_KEY, code_q, 0))
index_w_1 = history.index((EV_KEY, code_w, 1))
index_w_0 = history.index((EV_KEY, code_w, 0))
self.assertGreater(index_q_0, index_q_1)
self.assertGreater(index_w_1, index_q_0)
self.assertGreater(index_w_0, index_w_1)
del history[index_q_1]
index_q_0 = history.index((EV_KEY, code_q, 0))
del history[index_q_0]
index_w_1 = history.index((EV_KEY, code_w, 1))
del history[index_w_1]
index_w_0 = history.index((EV_KEY, code_w, 0))
del history[index_w_0]
# the rest should be in order.
# first the incomplete combination key that wasn't mapped to anything
# and just forwarded. The input event that triggered the macro
# won't appear here.
self.assertEqual(history[0], (EV_KEY, 8, 1))
self.assertEqual(history[1], (EV_KEY, 8, 0))
# value should be 1, even if the input event was -1.
# Injected keycodes should always be either 0 or 1
self.assertEqual(history[2], (EV_KEY, code_a, 1))
self.assertEqual(history[3], (EV_KEY, code_a, 0))
self.assertEqual(history[4], (EV_KEY, input_b, 1))
self.assertEqual(history[5], (EV_KEY, input_b, 0))
self.assertEqual(history[6], (3124, 3564, 6542))
time.sleep(0.1)
self.assertTrue(self.injector.is_alive())
numlock_after = is_numlock_on()
self.assertEqual(numlock_before, numlock_after)
self.assertEqual(self.injector.get_state(), RUNNING)
def test_any_funky_event_as_button(self):
# as long as should_map_as_btn says it should be a button,
# it will be.
EV_TYPE = 4531
CODE_1 = 754
CODE_2 = 4139
w_down = (EV_TYPE, CODE_1, -1)
w_up = (EV_TYPE, CODE_1, 0)
d_down = (EV_TYPE, CODE_2, 1)
d_up = (EV_TYPE, CODE_2, 0)
custom_mapping.change(Key(*w_down[:2], -1), 'w')
custom_mapping.change(Key(*d_down[:2], 1), 'k(d)')
system_mapping.clear()
code_w = 71
code_d = 74
system_mapping._set('w', code_w)
system_mapping._set('d', code_d)
def do_stuff():
if self.injector is not None:
# discard the previous injector
self.injector.stop_injecting()
time.sleep(0.1)
while uinput_write_history_pipe[0].poll():
uinput_write_history_pipe[0].recv()
push_events('gamepad', [
new_event(*w_down),
new_event(*d_down),
new_event(*w_up),
new_event(*d_up),
])
self.injector = Injector(groups.find(name='gamepad'),
custom_mapping)
# the injector will otherwise skip the device because
# the capabilities don't contain EV_TYPE
input = InputDevice('/dev/input/event30')
self.injector._grab_device = lambda *args: input
self.injector.start()
uinput_write_history_pipe[0].poll(timeout=1)
time.sleep(EVENT_READ_TIMEOUT * 10)
return read_write_history_pipe()
"""no"""
history = do_stuff()
self.assertEqual(history.count((EV_KEY, code_w, 1)), 0)
self.assertEqual(history.count((EV_KEY, code_d, 1)), 0)
self.assertEqual(history.count((EV_KEY, code_w, 0)), 0)
self.assertEqual(history.count((EV_KEY, code_d, 0)), 0)
"""yes"""
with mock.patch('keymapper.utils.should_map_as_btn', lambda *_: True):
history = do_stuff()
self.assertEqual(history.count((EV_KEY, code_w, 1)), 1)
self.assertEqual(history.count((EV_KEY, code_d, 1)), 1)
self.assertEqual(history.count((EV_KEY, code_w, 0)), 1)
self.assertEqual(history.count((EV_KEY, code_d, 0)), 1)
def test_wheel(self):
# this tests both keycode_mapper and event_producer, and it seems
# to test stuff not covered in test_keycode_mapper, so it's a quite
# important one.
# wheel release events are made up with a debouncer
# map those two to stuff
w_up = (EV_REL, REL_WHEEL, -1)
hw_right = (EV_REL, REL_HWHEEL, 1)
# should be forwarded and present in the capabilities
hw_left = (EV_REL, REL_HWHEEL, -1)
custom_mapping.change(Key(*hw_right), 'k(b)')
custom_mapping.change(Key(*w_up), 'c')
system_mapping.clear()
code_b = 91
code_c = 92
system_mapping._set('b', code_b)
system_mapping._set('c', code_c)
group_key = 'Foo Device 2'
push_events(group_key, [
new_event(*w_up),
] * 10 + [
new_event(*hw_right),
new_event(*w_up),
] * 5 + [new_event(*hw_left)])
group = groups.find(key=group_key)
self.injector = Injector(group, custom_mapping)
device = InputDevice('/dev/input/event11')
# make sure this test uses a device that has the needed capabilities
# for the injector to grab it
self.assertIn(EV_REL, device.capabilities())
self.assertIn(REL_WHEEL, device.capabilities()[EV_REL])
self.assertIn(REL_HWHEEL, device.capabilities()[EV_REL])
self.assertIn(device.path, group.paths)
self.injector.start()
# wait for the first injected key down event
uinput_write_history_pipe[0].poll(timeout=1)
self.assertTrue(uinput_write_history_pipe[0].poll())
event = uinput_write_history_pipe[0].recv()
self.assertEqual(event.t, (EV_KEY, code_c, 1))
time.sleep(EVENT_READ_TIMEOUT * 5)
# in 5 more read-loop ticks, nothing new should have happened
self.assertFalse(uinput_write_history_pipe[0].poll())
time.sleep(EVENT_READ_TIMEOUT * 6)
# 5 more and it should be within the second phase in which
# the horizontal wheel is used. add some tolerance
self.assertTrue(uinput_write_history_pipe[0].poll())
event = uinput_write_history_pipe[0].recv()
self.assertEqual(event.t, (EV_KEY, code_b, 1))
time.sleep(EVENT_READ_TIMEOUT * 10 + 5 / 60)
# after 21 read-loop ticks all events should be consumed, wait for
# at least 3 (=5) producer-ticks so that the debouncers are triggered.
# Key-up events for both wheel events should be written now that no
# new key-down event arrived.
events = read_write_history_pipe()
self.assertEqual(events.count((EV_KEY, code_b, 0)), 1)
self.assertEqual(events.count((EV_KEY, code_c, 0)), 1)
self.assertEqual(events.count(hw_left), 1) # the unmapped wheel
# the unmapped wheel won't get a debounced release command, it's
# forwarded as is
self.assertNotIn((EV_REL, REL_HWHEEL, 0), events)
self.assertEqual(len(events), 3)
def test_store_permutations_for_macros(self):
mapping = Mapping()
ev_1 = (EV_KEY, 41, 1)
ev_2 = (EV_KEY, 42, 1)
ev_3 = (EV_KEY, 43, 1)
# a combination
mapping.change(Key(ev_1, ev_2, ev_3), 'k(a)')
self.injector = Injector(groups.find(key='Foo Device 2'), mapping)
history = []
class Stop(Exception):
pass
def _construct_capabilities(*args):
history.append(args)
# avoid going into any mainloop
raise Stop()
with mock.patch.object(self.injector, '_construct_capabilities',
_construct_capabilities):
try:
self.injector.run()
except Stop:
pass
# one call
self.assertEqual(len(history), 1)
# first argument of the first call
macros = self.injector.context.macros
self.assertEqual(len(macros), 2)
self.assertEqual(macros[(ev_1, ev_2, ev_3)].code, 'k(a)')
self.assertEqual(macros[(ev_2, ev_1, ev_3)].code, 'k(a)')
def test_key_to_code(self):
mapping = Mapping()
ev_1 = (EV_KEY, 41, 1)
ev_2 = (EV_KEY, 42, 1)
ev_3 = (EV_KEY, 43, 1)
ev_4 = (EV_KEY, 44, 1)
mapping.change(Key(ev_1), 'a')
# a combination
mapping.change(Key(ev_2, ev_3, ev_4), 'b')
self.assertEqual(mapping.get_symbol(Key(ev_2, ev_3, ev_4)), 'b')
system_mapping.clear()
system_mapping._set('a', 51)
system_mapping._set('b', 52)
injector = Injector(groups.find(key='Foo Device 2'), mapping)
injector.context = Context(mapping)
self.assertEqual(injector.context.key_to_code.get((ev_1, )), 51)
# permutations to make matching combinations easier
self.assertEqual(injector.context.key_to_code.get((ev_2, ev_3, ev_4)),
52)
self.assertEqual(injector.context.key_to_code.get((ev_3, ev_2, ev_4)),
52)
self.assertEqual(len(injector.context.key_to_code), 3)
def test_is_in_capabilities(self):
key = Key(1, 2, 1)
capabilities = {1: [9, 2, 5]}
self.assertTrue(is_in_capabilities(key, capabilities))
key = Key((1, 2, 1), (1, 3, 1))
capabilities = {1: [9, 2, 5]}
# only one of the codes of the combination is required.
# The goal is to make combinations across those sub-devices possible,
# that make up one hardware device
self.assertTrue(is_in_capabilities(key, capabilities))
key = Key((1, 2, 1), (1, 5, 1))
capabilities = {1: [9, 2, 5]}
self.assertTrue(is_in_capabilities(key, capabilities))
def start_injecting(self, group_key, preset):
"""Start injecting the preset for the device.
Returns True on success. If an injection is already ongoing for
the specified device it will stop it automatically first.
Parameters
----------
group_key : string
The unique key of the group
preset : string
The name of the preset
"""
self.refresh(group_key)
if self.config_dir is None:
logger.error(
'Tried to start an injection without configuring the daemon '
'first via set_config_dir.')
return False
group = groups.find(key=group_key)
if group is None:
logger.error('Could not find group "%s"', group_key)
return False
preset_path = os.path.join(self.config_dir, 'presets', group.name,
f'{preset}.json')
mapping = Mapping()
try:
mapping.load(preset_path)
except FileNotFoundError as error:
logger.error(str(error))
return False
if self.injectors.get(group_key) is not None:
self.stop_injecting(group_key)
# Path to a dump of the xkb mappings, to provide more human
# readable keys in the correct keyboard layout to the service.
# The service cannot use `xmodmap -pke` because it's running via
# systemd.
xmodmap_path = os.path.join(self.config_dir, 'xmodmap.json')
try:
with open(xmodmap_path, 'r') as file:
# do this for each injection to make sure it is up to
# date when the system layout changes.
xmodmap = json.load(file)
logger.debug('Using keycodes from "%s"', xmodmap_path)
system_mapping.update(xmodmap)
# the service now has process wide knowledge of xmodmap
# keys of the users session
except FileNotFoundError:
logger.error('Could not find "%s"', xmodmap_path)
try:
injector = Injector(group, mapping)
injector.start()
self.injectors[group.key] = injector
except OSError:
# I think this will never happen, probably leftover from
# some earlier version
return False
return True