_window.py was the repo's largest file and could not be read in one piece. Split along the seams the file already marked out, keeping the public API and every existing import path intact: _config.py (215) — LockConfig, the design tokens and preset resolution _arming.py (178) — the way up: VT-disable, backdrop, surfaces, input grab _preempt.py (118) — naming a blocked grab's holder, standing a weaker one down _hooks.py (51) — the LockWindowHooks Protocol, pure interface _window.py (243) — construction, focus, and teardown _arming takes an explicit ArmingCollaborators bundle rather than the window itself, mirroring the existing RecoveryCollaborators; setup() returns whether VT was disabled instead of mutating the window. That leaves no reach-back into private members (ruff SLF001 clean) and makes the arming sequence testable without a window. LockConfig is re-exported from _window, so `from gatelock._window import LockConfig` — which five sibling modules and the tests already do — still resolves. Tests that patched moved symbols were retargeted to their new home; the dead _maybe_preempt delegate, whose only callers were tests, is gone. 389 passed, 100% branch coverage — identical to before the split. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CFSGeWxHPY5rHUGrPqhcmG |
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| gatelock | ||
| prompts | ||
| .pre-commit-config.yaml | ||
| LICENSE | ||
| pyproject.toml | ||
| README.md | ||
| requirements.txt | ||
gatelock
Shared fullscreen lock-window + HMAC log-integrity backend, extracted from three personal automation tools that each independently implemented "lock the screen with a blocking overlay until a condition is met": diet_guard, wake_alarm, and screen-locker.
Why
All three reimplemented the same tkinter fullscreen mechanics (overrideredirect,
input grab, VT-switch disable) at different levels of maturity, and the
HMAC-signed-state module had already been hand-copied between two of them
because they live in separate repos. gatelock is the one place that logic
now lives.
Install
pip install "gatelock @ git+https://github.com/kuhyx/utils@gatelock-v0.1.1#subdirectory=gatelock"
Usage
import tkinter as tk
from gatelock import GateRoot, LockConfig, LockWindow
class MyGate:
def __init__(self, *, demo_mode: bool) -> None:
self.root = GateRoot()
self.root.on_callback_error = self._handle_callback_error
config = LockConfig(mode="soft" if demo_mode else "hard")
self._lock = LockWindow(self.root, config, hooks=self)
self._lock.setup()
# ... build your widgets ...
self._lock.grab_input()
def on_focus_ready(self) -> None:
self.my_entry.focus_force()
def on_callback_error(self) -> None:
self.close()
def on_close(self) -> None:
... # release any hardware/state held while locked
def close(self) -> None:
self._lock.close()
def run(self) -> None:
self._lock.run()
LockConfig's mode preset bundles the common combination ("soft" = topmost
only, typeable, WM-escapable; "hard" = overrideredirect + global grab +
VT-disable). Each axis (overrideredirect, grab, disable_vt,
grab_retry_ms) can be set explicitly to reproduce a consumer's exact prior
behavior where it diverges from the preset.
gatelock.log_integrity ports the HMAC-signed state module used by all three
projects; DEFAULT_HMAC_KEY_FILE (/etc/workout-locker/hmac.key) is
unchanged so existing signed history keeps verifying.
Development
python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
pytest
pre-commit install && pre-commit install --hook-type pre-push