clear() forces a full physical screen repaint on the next refresh();
erase() just blanks the buffer content and lets curses diff against
what's already on the terminal, sending only the changed cells. The
main cert list and the cert-entry form both redraw on every keystroke,
so clear() there meant retransmitting the whole screen on every arrow
key / typed character — slow and flickery over a low-bandwidth link
like a serial console.
One-shot dialogs (show_confirm, _msg, _error) draw once and don't
loop-redraw, so they keep clear() as-is — no benefit to changing them
and it's one less thing to get wrong.
Also handle curses.KEY_RESIZE explicitly in the main list loop: force
one real clear() right after a detected resize, since erase()'s diff
against the pre-resize screen model isn't reliable across a genuine
dimension change. Screen-size changes were already picked up on the
next redraw before this (draw() runs unconditionally every loop
iteration), this just guarantees a clean repaint at the moment of the
actual resize instead of trusting the diff engine through it.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
show_confirm() sized its window purely from message content, with no
upper bound — a long line (the Cryptgeon password URL in the
post-issuance "send email?" prompt) could easily exceed a narrow
terminal's width (e.g. a serial console), making curses.newwin()
raise "curses function returned NULL" and crash the whole app.
show_cert_form() had the same unguarded newwin() call, just with a
fixed 13x62 size instead of content-driven.
Clamp both windows' height/width to the actual screen size, and wrap
newwin() itself in try/except as a last-resort fallback (declined
confirm / cancelled form) in case clamping still isn't enough.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Tab (or Down/Enter on a field) now cycles through the three text fields
and then onto [ Continue ] and [ Cancel ] buttons at the bottom of the
form. Enter or Space activates the focused button. Ctrl-G still
confirms immediately from any position. Escape still cancels.
The form window is trimmed from h=16 to h=13 since the buttons replace
the now-redundant empty space below the password field.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Ctrl-S (0x13) is the XOFF flow-control character; terminals intercept it
before curses sees it, causing output suspension in Konsole and others.
Replaced with Ctrl-G (0x07 / BEL) which has no terminal-level meaning.
Updated hint bar and test stub accordingly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
