fix(tui): handle external SIGTSTP to prevent mouse garbling on suspend#20507
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agutmanstein-scale wants to merge 2 commits intoanomalyco:devfrom
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fix(tui): handle external SIGTSTP to prevent mouse garbling on suspend#20507agutmanstein-scale wants to merge 2 commits intoanomalyco:devfrom
agutmanstein-scale wants to merge 2 commits intoanomalyco:devfrom
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When opencode receives SIGTSTP from an external source (code-server terminal management, job control, kill -TSTP), the process is suspended without terminal cleanup. Mouse tracking remains enabled, causing mouse events to echo as garbled escape sequences in the shell. Register SIGTSTP/SIGCONT handlers after renderer creation that call renderer.suspend()/resume() — the same cleanup the manual suspend keybind uses. The SIGTSTP handler removes itself before re-raising to allow default suspend behavior. Includes test-sigtstp-mouse.sh reproduction script. Upstream fix: anomalyco/opentui#907 Closes anomalyco#20506 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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- sigtstp-mouse-pty.py: wraps a command in a PTY, waits for mouse tracking to be enabled, sends SIGTSTP to the process group, then checks whether ?1003l was emitted before suspension. Demonstrates FAIL→PASS across PR anomalyco#20507. - post-exit-mouse-pty.py: wraps a command in a PTY and snapshots the slave PTY's ECHO flag at the moment ?1003l arrives at the master. Structural verification for PR anomalyco#20462 ordering is covered by test-destroy-mouse-cleanup.mjs. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When SIGCONT arrives without a prior SIGTSTP through our handler (e.g., code-server terminal refocus/reconnect), calling resume() adds a duplicate stdin listener — every keystroke is delivered twice, causing double character input like "ooppeennccooddee". Guard resume() with a suspendedBySigtstp flag so it only runs if our SIGTSTP handler actually called suspend(). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Issue for this PR
Closes #20506
Type of change
What does this PR do?
When opencode receives SIGTSTP from an external source (code-server terminal management during inactivity, job control,
kill -TSTP), the process is suspended without terminal cleanup. Mouse tracking remains enabled, causing mouse events to echo as garbled escape sequences in the shell.This PR registers SIGTSTP/SIGCONT handlers in
app.tsxafter renderer creation:renderer.suspend()(disables mouse, raw mode), removes itself, re-raises SIGTSTPrenderer.resume()This is the same cleanup pattern the manual suspend keybind already uses.
Upstream fix: anomalyco/opentui#907
How did you verify your code works?
renderer.suspend()/resume()which are proven correct (used by the existing suspend keybind)test-sigtstp-mouse.shreproduction script:Checklist
🤖 Generated with Claude Code