Command box

arkui::command

One search box over everything, opened by Ctrl+K, as shadcn/ui's command dialog: what it finds in groups under it, the keys walking it.

• Command::new(now), typed(query, list), step(down, groups, list), land(at), scrolled(y), chosen(groups)
• view(command, placeholder, groups, messages, open)
• panel(command, placeholder, groups, messages, width): the box alone, to pin as a dropdown
• list(command, groups, messages, width): what was found alone, under a box of the app's
• Group { heading, items }, Item { glyph, label, detail, choose }
• keys(open) -> Subscription<Press>, press(key, mods, open), opens(key, mods)
• WIDTH, LIST_HEIGHT, ROW, HEADING

Rules

• The app searches and the box draws: it is handed the groups for what is typed.
• Its keys are heard whatever has the keyboard (keys): a text box takes <Esc> for itself.
• Its rows are declared heights, so the list scrolls to the keys by arithmetic.

rust/arkui/src/command.rs