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fix: distinguish Ctrl+I from Tab in comparisons

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Valdemar Lorenzen
2026-10-16 12:48:13 +02:00
parent 92e1e6e8fd
commit 930735c537
8 changed files with 104 additions and 39 deletions
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docs/architecture.md
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@@ -64,7 +64,7 @@ Frontends borrow `snippet_selections()` for the active argument's end-exclusive
The terminal guard owns raw mode, alternate-screen state, bracketed paste, mouse capture, focus reporting, DEC 2031 color-scheme notifications, and its panic hook across startup, rendering, session teardown, and relaunch. An inherited-screen restart installs cleanup and its panic hook before argument, file, or configuration parsing, resumes raw mode and input reporting without entering the alternate screen again, and clears and repaints inherited contents in its first synchronized frame. A private first-argument marker identifies this handoff without changing the original CLI arguments. Final quit, startup or I/O errors, failed relaunch, and unwinding panics restore normal input modes, the normal screen, cursor visibility, and the caller's hook; active-terminal cleanup runs before caller panic diagnostics. Panics retain their original payload and propagate rather than being swallowed. Terminal state and panic hooks are process-global: run one TUI at a time and do not replace its hook while the guard is active.
`tui::TerminalSession::run(inherited_screen, body)` scopes this ownership; `tui::run(&mut session, inherited_screen)` renders inside that active guard. `TerminalSession::prepare_restart()` resets process-local input state without leaving the alternate screen, and the guard stays armed if relaunch fails.
`tui::TerminalSession::run(inherited_screen, body)` scopes this ownership; `tui::run(&mut session, inherited_screen)` renders inside that active guard. On Unix, a fresh alternate screen pushes disambiguated keyboard flags so Ctrl+i stays distinct from Tab; final cleanup pops them. `TerminalSession::prepare_restart()` resets process-local input state without leaving the alternate screen or popping its keyboard flags. The replacement process inherits that stack entry rather than pushing another, and the guard stays armed if relaunch fails.
Redraws stage Ratatui's buffer diff, cursor placement, and DEC synchronized-update commands (mode 2026) in a reusable byte buffer, then write and flush the complete frame to the terminal. Frame computation never suspends terminal presentation; synchronization covers transmitted painting rather than layout/highlighting work. The hardware cursor is hidden before painting even when synchronization is unsupported. Terminal cleanup releases synchronization before leaving the alternate screen or invoking caller panic diagnostics. Backend-writer access is enabled solely for this staging seam.