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Key and text handler for the kittens

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Kovid Goyal
2018-02-06 20:58:46 +05:30
parent 328f22adab
commit 35f1658f4a
2 changed files with 49 additions and 4 deletions
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29
kittens/tui/loop.py
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@@ -6,13 +6,16 @@ import codecs
import fcntl
import io
import os
import re
import selectors
import sys
import termios
import tty
from contextlib import closing, contextmanager
from functools import partial
from kitty.fast_data_types import parse_input_from_terminal
from kitty.key_encoding import decode_key_event, enter_key, backspace_key
from .operations import init_state, reset_state
@@ -71,6 +74,8 @@ class Loop:
self.iov_limit = os.sysconf('SC_IOV_MAX') - 1
except Exception:
self.iov_limit = 255
self.parse_input_from_terminal = partial(parse_input_from_terminal, self.on_text, self.on_dcs, self.on_csi, self.on_osc, self.on_pm, self.on_apc)
self.ebs_pat = re.compile('([\177\r])')
def _read_ready(self, handler):
if not self.read_allowed:
@@ -83,9 +88,19 @@ class Loop:
data = self.read_buf + data
self.read_buf = data
self.handler = handler
self.read_buf = parse_input_from_terminal(
handler.on_text, self.on_dcs, self.on_csi, self.on_osc, self.on_pm, self.on_apc, self.read_buf)
del self.handler
try:
self.read_buf = self.parse_input_from_terminal(self.read_buf)
finally:
del self.handler
def on_text(self, text):
for chunk in self.ebs_pat.split(text):
if chunk == '\r':
self.handler.on_key(enter_key)
elif chunk == '\177':
self.handler.on_key(backspace_key)
else:
self.handler.on_text(chunk)
def on_dcs(self, dcs):
pass
@@ -97,7 +112,13 @@ class Loop:
pass
def on_apc(self, apc):
pass
if apc.startswith('K'):
try:
k = decode_key_event(apc)
except Exception:
pass
else:
self.handler.on_key(k)
def _write_ready(self, handler):
if len(handler.write_buf) > self.iov_limit: