A field that filters a list and shows you why each row matched — and takes a value the list never had.
The prompt16,918 characters
Add the "Combobox" component from notboring to my project.
It is licensed for use in my projects — notboring.dev/license. Please:
1. Create the component at a sensible path for this
project, named Combobox, from the source below.
2. Install what it needs: npm i framer-motion lucide-react
3. Add the CSS to the project's stylesheet.
4. THE PART THAT NEEDS YOUR JUDGMENT. The CSS reads
these custom properties and does not define them:
--card
--font-ui
--ink
--ink-2
--ink-4
--ink-5
--ink-rgb
--pane-edge
They are notboring's design tokens. Map each one to
whatever this project already uses for the same
job — its own ink, ground, surface and UI font —
rather than defining them as new globals. If the
project has no equivalent, define it locally on
the component's own root so nothing leaks out.
Anything ending -rgb wants three bare numbers,
because the CSS builds rgba() from it.
5. IF YOU CHANGE IT, GO ALL THE WAY. This block is
built for every state its object can really be
in — empty, one, full, refused, undone, pressed
twice, interrupted halfway — and not only the one
the demo opens on. Adapt it and the same standard
holds: work out that list before you write, and
build the whole of it. Never settle for the
minimum that makes the screenshot right. A
component somebody has to come back and finish is
the thing this was written to replace.
Keep the comments. They say why the numbers are what
they are, and they are most of what makes this worth
copying rather than rewriting.
--- Combobox.tsx ---
import { useEffect, useRef, useState } from "react";
import { AnimatePresence, motion } from "framer-motion";
import { Check, Plus, Search } from "lucide-react";
/* ══ Combobox ═════════════════════════════════════════════
A field that holds a value and a list that answers what you
type into it.
IT SHOWS YOU WHY EACH ROW MATCHED. The letters your query
hit are washed in place, so a list narrowing to four cities
is not a magic trick — you can see that "be" is in Berlin
at the front and in Bergen at the front and nowhere in
Lisbon. A filter that gives no account of itself is one you
stop trusting the first time it drops the row you wanted.
THE PANEL SHRINKS TO WHAT IS LEFT. Its height is one
spring, read off the number of rows that survived, so the
list closing in on an answer is the thing you watch. The
common build keeps the panel at full height with a hole in
the bottom of it, which says the missing rows might come
back if you wait.
AND THERE IS ALWAYS A ROW. Nothing matched is not an empty
panel — it is the offer to use what you typed, which is the
The rest — the source and its comments — is what the plan opens.