Claude
a07869f8be
find_keyboard() was matching ydotoold virtual device instead of the real AT Translated Set 2 keyboard because evdev lists devices in reverse order. Now skips devices with 'virtual' or 'ydotool' in name. https://claude.ai/code/session_01XKYC1basxdwtHy71tky7xm
134 lines
3.7 KiB
Python
134 lines
3.7 KiB
Python
#!/usr/bin/env python3
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"""
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openwhispr-ptt.py — Push-to-talk wrapper for OpenWhispr
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Turns Ctrl+Alt (hold) into Ctrl+` toggle pairs using raw evdev input.
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No key repeat issues — reads physical key state directly.
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Requires: evdev, xdotool
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May need to run as root or add user to 'input' group.
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Usage: sudo python3 openwhispr-ptt.py
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"""
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import subprocess
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import signal
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import sys
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import time
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try:
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import evdev
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from evdev import ecodes
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except ImportError:
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print("Error: evdev not installed.")
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print("Install with: pip3 install evdev --break-system-packages")
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sys.exit(1)
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WHISPR_HOTKEY = "ctrl+grave"
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KEY_LEFTCTRL = ecodes.KEY_LEFTCTRL
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KEY_RIGHTCTRL = ecodes.KEY_RIGHTCTRL
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KEY_LEFTALT = ecodes.KEY_LEFTALT
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KEY_RIGHTALT = ecodes.KEY_RIGHTALT
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ctrl_held = False
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alt_held = False
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is_recording = False
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def send_whispr_toggle():
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"""Send Ctrl+` to OpenWhispr via xdotool.
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Release all held modifiers first, then send the full
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keydown ctrl, key grave, keyup ctrl sequence cleanly.
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"""
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try:
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subprocess.run(
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["xdotool", "keyup", "ctrl", "alt", "super"],
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timeout=2,
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capture_output=True,
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)
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subprocess.run(
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["xdotool", "keydown", "ctrl", "key", "grave", "keyup", "ctrl"],
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timeout=2,
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capture_output=True,
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)
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except FileNotFoundError:
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print("Error: xdotool not installed.")
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sys.exit(1)
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except subprocess.TimeoutExpired:
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pass
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def find_keyboard():
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"""Find the real physical keyboard device (not virtual devices)."""
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devices = [evdev.InputDevice(path) for path in evdev.list_devices()]
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for dev in devices:
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# Skip virtual devices (ydotool, xdotool, etc.)
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name_lower = dev.name.lower()
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if "virtual" in name_lower or "ydotool" in name_lower:
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continue
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caps = dev.capabilities(verbose=False)
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if ecodes.EV_KEY in caps:
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keys = caps[ecodes.EV_KEY]
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if ecodes.KEY_A in keys and ecodes.KEY_LEFTCTRL in keys:
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return dev
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return None
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def main():
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global ctrl_held, alt_held, is_recording
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print("=" * 43)
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print(" OpenWhispr Push-to-Talk (evdev)")
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print("=" * 43)
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print(" Hold: Ctrl + Alt -> start dictation")
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print(" Release: Ctrl + Alt -> stop dictation")
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print(" Quit: Ctrl + C")
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print("=" * 43)
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kb = find_keyboard()
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if kb is None:
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print("")
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print("Error: No keyboard found.")
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print("Try: sudo python3 ~/openwhispr-ptt.py")
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print("Or: sudo usermod -aG input $USER (then log out/in)")
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sys.exit(1)
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print(" Keyboard: " + kb.name)
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print("=" * 43)
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print("Listening...\n")
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signal.signal(signal.SIGINT, lambda *_: sys.exit(0))
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for event in kb.read_loop():
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if event.type != ecodes.EV_KEY:
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continue
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# value: 0=release, 1=press, 2=repeat — IGNORE repeats
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if event.value == 2:
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continue
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pressed = (event.value == 1)
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if event.code in (KEY_LEFTCTRL, KEY_RIGHTCTRL):
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ctrl_held = pressed
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elif event.code in (KEY_LEFTALT, KEY_RIGHTALT):
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alt_held = pressed
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# Start on both pressed
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if ctrl_held and alt_held and not is_recording:
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is_recording = True
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send_whispr_toggle()
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print("\033[32m● Recording...\033[0m", flush=True)
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# Stop when either released
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if is_recording and not (ctrl_held and alt_held):
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time.sleep(0.05) # Let key release propagate to X11
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send_whispr_toggle()
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is_recording = False
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print("\033[0m○ Stopped", flush=True)
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if __name__ == "__main__":
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main()
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