* fix(ibus): restore engine after register_component teardown
Stopping the Vocalinux IBus engine process destroys its
register_component registration. IBus then runs check_global_engine(),
which only searches register_engine_list and treats XML engines like
xkb:es::spa as missing, clearing GlobalEngine even when Vocalinux was
never selected. Capture a restorable engine before teardown and
reselect it afterward so dead keys keep working after quit.
Fixes#558
Co-authored-by: Jatin K Malik <jatinkrmalik@users.noreply.github.com>
* fix(ibus): wait for engine exit before restoring GlobalEngine
Adversarial review of #643 found that stop_engine_process() returned
right after SIGTERM, so switch_engine() could race ahead of IBus
check_global_engine() and still leave No global engine. Wait for the
process to exit (SIGKILL fallback), retry engine restore, capture a
shutdown fallback during prepare_engine, and re-apply XKB after the
post-teardown engine switch.
Addresses review of #558 / #643.
Co-authored-by: Jatin K Malik <jatinkrmalik@users.noreply.github.com>
* fix(ibus): prefer live engine over stale warmup on quit
Bugbot on #643: stop() restored the warmup-cached engine even when the
user had switched input source afterward, and inject_text refused to
refresh that cache once set. Prefer the live non-Vocalinux engine at
quit; fall back to the cache only when stuck on vocalinux/unavailable.
Always refresh the shutdown fallback from inject_text.
Also cover SIGKILL teardown escalation and restore-retry failure paths
to lift patch coverage.
Co-authored-by: Jatin K Malik <jatinkrmalik@users.noreply.github.com>
---------
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Jatin K Malik <jatinkrmalik@users.noreply.github.com>
