Index Reel

Install

Or by hand, in a Next.js project with shadcn set up. It writes components/pastetaste/index-reel.tsx.

Install the pastetaste component "Index Reel" (index-reel) into this Next.js project and use it.

What it is: A looping word index with a fixed arrow: the list creeps, snaps and settles one row at a time, the entry under the arrow steps in and darkens, the rest fade with distance. Clickable, keyboard-driven.

Before you place it, ask me (one short message, in my language; "skip" = sensible default): which page and section it goes in, my brand colour (hex), the text, labels or images it should show, and whether I want my logo or my own copy in the demo content. Then:

Steps:
1. If the project has no components.json, run: npx shadcn@latest init -y -d. Then run: npx shadcn@latest add https://pastetaste.com/r/index-reel.json
   (it writes components/pastetaste/index-reel.tsx; install any npm packages it reports).
2. Import it: import { IndexReel } from "@/components/pastetaste/index-reel" (check the file for the exact named export).
3. Put it where it fits on the page I name, keep the rest of the page untouched, and pass props for my colours instead of editing the installed file.
4. It does not depend on Tailwind; colours come from CSS variables (--pt-*) or props.
5. It supports prefers-reduced-motion with a still state; do not remove it.

Props (all optional unless the type has no default):
- items: Array<string | { label: ReactNode; href?: string; key?: string }> — Entries on the reel, in order. The list loops; short lists are repeated so no row ever jumps across.
- index / defaultIndex: number / number = — / 0 — Controlled or starting entry.
- onIndexChange: (index: number) => void — Fires when the reel starts rolling to a new entry (autoplay, click or key). Use it to swap a photo or caption in step with the reel.
- onSelect: (index: number) => void — Fires when the current entry is clicked or Enter is pressed on it. Items with href follow their link as well.
- autoplay / interval: boolean / number = true / 1.5 — Step on its own every interval seconds. Pauses on mouse hover, keyboard focus, off-screen and in a hidden tab; off with reduced motion.
- paused: boolean = false — Stop autoplay from outside, e.g. a Pause button next to the reel.
- duration: number = 0.62 — Seconds one step takes. Jumps of several rows take up to 2.2× as long.
- direction: 'up' | 'down' = 'up' — Autoplay travel: 'up' brings the next entry up from below.
- rows: number = 3 — Rows shown on each side of the arrow (1 to 6). The reel is (2 × rows + 1) × leading em tall.
- size: string = 'clamp(2.25rem, 6vw, 4.5rem)' — CSS font-size of the reel; arrow, indent and pitch scale with it.
- marker: ReactNode | null = arrow — What sits at the middle row. null removes it (and the indent).
- indent / leading: number / number = 1.08 / 1.04 — How far the current entry steps in, and the row pitch, both in em.
- interactive: boolean = true — Rows are buttons (or links). Off renders plain text for a pure display reel.
- label: string = 'Index' — Accessible name of the list.

Live preview: https://pastetaste.com/c/index-reel
Then run the dev server, check it in the browser at desktop and mobile width, and tell me the page URL.

Props 14