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at-container-registry/pkg/appview/public/js
Evan JarrettandClaude Opus 5 9566201377 appview: give the confirm modal an accessible name and a focus trap
The modal guards tag deletion, device revocation and webhook deletion, so it is
the wrong control to leave unlabelled and escapable.

Note the original report was half wrong: role="dialog" and aria-modal="true"
were already set on the outer element, and are in the deployed bundle. The
observation was most likely taken against the inner .modal-box. Neither was
added here.

What was actually missing: the h2 existed but nothing pointed at it, so a screen
reader announced a dialog with no name; and the only focus management was
focusing Cancel on open, so Tab walked straight out into the skip link and page
header behind the backdrop.

Adds aria-labelledby and aria-describedby with sequence-suffixed ids so two
modals cannot cross-reference. aria-describedby matters more than usual here:
none of the three call sites' messages contain ". ", so the title is always the
generic "Are you sure?" and the specific text is the body.

The trap re-queries on each keypress rather than caching at open, and handles
three cases: focus escaping to body gets pulled back, first plus Shift+Tab wraps
to last, last plus Tab wraps to first. Focus is restored to the opener on every
close path, guarded by document.contains, because confirming a tag deletion
fires an htmx swap that can remove the button that opened the modal. Restoration
happens before onConfirm so htmx sees a sane focus state.

Native <dialog> would give the trap and Escape for free, but it renders in the
top layer while this is styled entirely with daisyUI .modal classes that assume
a positioned div, so converting means CSS work plus the seamark theme fork.
Worth doing as its own change, not smuggled into this one.

Includes the bundle rebuild, since nothing in the dev loop keeps that artifact
current.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PDqoCE1j3njokkZ9b1C5n9
2026-09-02 22:31:04 -05:00
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