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Implement "Bounce keys" feature #32

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Implement "Bounce keys" feature #32

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37 changes: 27 additions & 10 deletions evdevremapkeys/evdevremapkeys.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,30 +42,45 @@
registered_devices = {}


async def handle_events(input: InputDevice, output: UInput, remappings, modifier_groups):
async def handle_events(input: InputDevice, output: UInput, remappings, modifier_groups, bouncekeys):
active_group = {}
last_code = None
last_timestamp = None
try:
async for event in input.async_read_loop():
code = event.code

if not active_group:
active_mappings = remappings
else:
active_mappings = modifier_groups[active_group['name']]

if (event.code == active_group.get('code') or
(event.code in active_mappings and
'modifier_group' in active_mappings.get(event.code)[0])):
if (code == active_group.get('code') or
(code in active_mappings and
'modifier_group' in active_mappings.get(code)[0])):
if event.value == 1:
active_group['name'] = \
active_mappings[event.code][0]['modifier_group']
active_group['code'] = event.code
elif event.value == 0:
active_group = {}
else:
if event.code in active_mappings:
remap_event(output, event, active_mappings[event.code])
else:
output.write_event(event)
output.syn()
ignore_event = False
if bouncekeys is not None:
now = event.timestamp()
if event.value == 1:
if code != ecodes.KEY_RESERVED and \
code == last_code and \
now - last_timestamp < bouncekeys:
ignore_event = True
last_code = code
last_timestamp = now
if not ignore_event:
if code in active_mappings:
remap_event(output, event, active_mappings[code])
else:
output.write_event(event)
output.syn()
finally:
del registered_devices[input.path]
print('Unregistered: %s, %s, %s' % (input.name, input.path, input.phys),
Expand Down Expand Up @@ -293,6 +308,8 @@ def register_device(device, loop: AbstractEventLoop):
if 'modifier_groups' in device:
modifier_groups = device['modifier_groups']

bouncekeys = device['bouncekeys'] if 'bouncekeys' in device else None

def flatmap(lst):
return [l2 for l1 in lst for l2 in l1]

Expand All @@ -309,7 +326,7 @@ def flatmap(lst):
output = UInput(caps, name=device['output_name'])
print('Registered: %s, %s, %s' % (input.name, input.path, input.phys), flush=True)
task = loop.create_task(
handle_events(input, output, remappings, modifier_groups),
handle_events(input, output, remappings, modifier_groups, bouncekeys),
name=input.name)
registered_devices[input.path] = {
'task': task,
Expand Down