Files
dikte/ipc.py
T
yusufipek 1f5ea70fa6 Stop telling every desktop that it is KDE
Only GNOME was recognised, and everything else was handed to KWin. On i3,
XFCE, Cinnamon, MATE, sway and the rest, Dikte wrote an entry into
kglobalshortcutsrc that nothing reads, called the session KDE, and
promised that the keys would work after the next login. They never did.

There is no backend to write for any of them. The /dev/input listener is
already desktop-agnostic, so those sessions are the case macOS has always
been: no registry, nothing to install, nothing to remove, and the
combination held by the running process. One backend() function decides
which of the four this session has, and the name shown, the status read
back, what Install writes, what Settings explains and what the installer
promises are all taken from it, so they cannot disagree.

A desktop now only counts when the program that writes its registry is
there too. A GNOME session without gsettings and a Plasma one without
kwriteconfig6 fall to the listener rather than to a file, which is also
how Plasma 5 stops erroring on a kwriteconfig6 it never had.

What Settings shows on those desktops is the truth: no Install button, no
KWin, no listener checkbox (it is the mechanism, not a choice), what
reading /dev/input costs, that the focused application sees the keys too,
and the command to bind if you would rather your desktop owned them. The
evdev listener records what it is listening for the way the Carbon one
does, so the status line has something to say there at all.

Closes #28
2026-08-16 13:41:27 +03:00

86 lines
3.2 KiB
Python

"""The socket the running instance listens on, and one request over it.
A command typed at a terminal is answered rather than only obeyed: the reply
carries the transcript, the agent's answer, or the reason nothing happened,
which is what lets a script wait for a dictation instead of guessing when it is
done. One JSON object goes each way per connection. A bare verb is still
understood, because that is what earlier versions sent and what a stale KDE
shortcut may still send.
"""
import json
import os
import sys
from PyQt6.QtNetwork import QLocalSocket
SERVER_NAME = "dikte-" + str(os.getuid())
# Long enough for a process that is already running to answer, short enough that
# "nothing is running" is not a noticeable pause in front of a key press.
CONNECT_MS = 800
def script_path():
return os.path.realpath(
os.path.join(os.path.dirname(os.path.abspath(__file__)), "dikte.py")
)
def command_for(verb):
"""The command line a desktop's shortcut runs for one of the verbs.
Also what Settings shows an i3 or XFCE user to paste into their own
configuration, since there is no registry there for Dikte to write into.
"""
return f"{sys.executable} {script_path()} {verb}"
def send(cmd, wait=False, timeout=0, **args):
"""Send one request; the reply, or None when no instance is running.
`wait` asks the instance to hold its reply back until the job the request
started is over, which is how a terminal gets the transcript rather than
only the fact that recording began. `timeout` bounds that wait in seconds;
0 waits for as long as the job takes.
"""
sock = QLocalSocket()
sock.connectToServer(SERVER_NAME)
if not sock.waitForConnected(CONNECT_MS):
return None
request = {"cmd": cmd}
request.update({key: value for key, value in args.items() if value is not None})
if wait:
request["wait"] = True
# A verb carrying nothing goes as the bare word it used to be, so that an
# instance still running the older code obeys it: that is the one request
# that has to work across an update, since it is how you install the update.
line = cmd if list(request) == ["cmd"] else json.dumps(request)
sock.write((line + "\n").encode("utf-8"))
sock.flush()
sock.waitForBytesWritten(CONNECT_MS)
limit = (int(timeout * 1000) if timeout else -1) if wait else CONNECT_MS
buffer = b""
while b"\n" not in buffer:
if not sock.waitForReadyRead(limit):
break
buffer += bytes(sock.readAll())
sock.disconnectFromServer()
line = buffer.decode("utf-8", "replace").strip()
if not line:
# An instance from before replies existed answers by staying silent, and
# for a fire-and-forget verb that silence means it went through. A wait
# that ends this way did not: the run never reported back.
return ({"ok": False, "legacy": True,
"error": "the running instance is too old to answer; "
"reload it with: dikte restart"}
if wait else {"ok": True, "legacy": True})
try:
reply = json.loads(line)
except json.JSONDecodeError:
return {"ok": True, "legacy": True}
return reply if isinstance(reply, dict) else {"ok": True, "legacy": True}