def read(self) -> Iterable[KeyPress]:
"""
Return a list of `KeyPress` instances. It won't return anything when
there was nothing to read. (This function doesn't block.)
http://msdn.microsoft.com/en-us/library/windows/desktop/ms684961(v=vs.85).aspx
"""
max_count = 2048 # Max events to read at the same time.
read = DWORD(0)
arrtype = INPUT_RECORD * max_count
input_records = arrtype()
# Check whether there is some input to read. `ReadConsoleInputW` would
# block otherwise.
# (Actually, the event loop is responsible to make sure that this
# function is only called when there is something to read, but for some
# reason this happened in the asyncio_win32 loop, and it's better to be
# safe anyway.)
if not wait_for_handles([self.handle], timeout=0):
return
# Get next batch of input event.
windll.kernel32.ReadConsoleInputW(self.handle, pointer(input_records),
max_count, pointer(read))
# First, get all the keys from the input buffer, in order to determine
# whether we should consider this a paste event or not.
all_keys = list(self._get_keys(read, input_records))
# Fill in 'data' for key presses.
all_keys = [self._insert_key_data(key) for key in all_keys]
# Correct non-bmp characters that are passed as separate surrogate codes
all_keys = list(self._merge_paired_surrogates(all_keys))
if self.recognize_paste and self._is_paste(all_keys):
gen = iter(all_keys)
k: Optional[KeyPress]
for k in gen:
# Pasting: if the current key consists of text or \n, turn it
# into a BracketedPaste.
data = []
while k and (not isinstance(k.key, Keys)
or k.key == Keys.ControlJ):
data.append(k.data)
try:
k = next(gen)
except StopIteration:
k = None
if data:
yield KeyPress(Keys.BracketedPaste, "".join(data))
if k is not None:
yield k
else:
for k2 in all_keys:
yield k2
def read(self) -> Iterable[KeyPress]:
"""
Return a list of `KeyPress` instances. It won't return anything when
there was nothing to read. (This function doesn't block.)
http://msdn.microsoft.com/en-us/library/windows/desktop/ms684961(v=vs.85).aspx
"""
max_count = 2048 # Max events to read at the same time.
read = DWORD(0)
arrtype = INPUT_RECORD * max_count
input_records = arrtype()
# Check whether there is some input to read. `ReadConsoleInputW` would
# block otherwise.
# (Actually, the event loop is responsible to make sure that this
# function is only called when there is something to read, but for some
# reason this happened in the asyncio_win32 loop, and it's better to be
# safe anyway.)
if not wait_for_handles([self.handle], timeout=0):
return
# Get next batch of input event.
windll.kernel32.ReadConsoleInputW(
self.handle, pointer(input_records), max_count, pointer(read))
# First, get all the keys from the input buffer, in order to determine
# whether we should consider this a paste event or not.
all_keys = list(self._get_keys(read, input_records))
# Fill in 'data' for key presses.
all_keys = [self._insert_key_data(key) for key in all_keys]
if self.recognize_paste and self._is_paste(all_keys):
gen = iter(all_keys)
k: Optional[KeyPress]
for k in gen:
# Pasting: if the current key consists of text or \n, turn it
# into a BracketedPaste.
data = []
while k and (isinstance(k.key, str) or
k.key == Keys.ControlJ):
data.append(k.data)
try:
k = next(gen)
except StopIteration:
k = None
if data:
yield KeyPress(Keys.BracketedPaste, ''.join(data))
if k is not None:
yield k
else:
for k in all_keys:
yield k
def wait() -> None:
# Wait until either the handle becomes ready, or the remove event
# has been set.
result = wait_for_handles([remove_event, handle])
if result is remove_event:
windll.kernel32.CloseHandle(remove_event)
return
else:
loop.call_soon_threadsafe(ready)
def wait() -> None:
if self._handle_callbacks.get(handle_value) != callback:
return
wait_for_handles([handle])
loop.call_soon_threadsafe(ready)
def wait() -> None:
if self._handle_callbacks.get(handle) != callback:
return
wait_for_handles([handle])
loop.call_soon_threadsafe(ready)
