Range | Sean Lynch

Try it

9 × 9

ThemeSize

Drag either endpoint, or move the duration handle to slide the whole selection.

The interaction. The selection changes by relighting fixed cells. Tenths, minimum spans and cancellation stay exact through pointer and keyboard edits.

One shared language. Permanent dots, selective light handoffs and clean outlined shells. Chalk, Carbon and Ember carry the family across sizes and themes.

Make it yours. The preview and installation use the same source. Pointer, touch and keyboard interactions share the same state model, with system reduced motion respected throughout.

Install

Add it with the shadcn CLI, or copy the source manually.

Terminal

npx shadcn@latest add https://seanportfol.io/r/dot-matrix-range.json

Prefer a namespace? Register the registry once.

Terminal

npx shadcn@latest registry add @seanlynch=https://seanportfol.io/r/{name}.json

Terminal

npx shadcn@latest add @seanlynch/dot-matrix-range

Usage

This is the working preview example. Save it in a separate file after installing the component. Recording, media clocks and requests are illustrative: connect their controlled state and callbacks to your application.

components/examples/range-demo.tsx

'use client';

import { useState } from 'react';
import { MatrixRange, type TimeRange } from '@/components/dot-matrix/range-entry';

export default function RangeExample() {
  const [range, setRange] = useState<TimeRange>([12, 32]);
  return <MatrixRange value={range} onChange={setRange} duration={60} minSpan={1} />;
}

API Reference

Props on Range. Consult the included TypeScript source for supported native attributes.

PropTypeDefault

valueControlled start and end in seconds.readonly [number, number]–

durationLength of the source in seconds.number–

onChangeCommit a release or keyboard step.(range: TimeRange) => void–

minSpanMinimum length in seconds; defaults to 1.number–

cursorOptional host playback position.number–

onEditChangeSuspend playback while editing the range.(editing: boolean) => void–

gridFixed cornerless lattice; glyphs are authored for each resolution.5 | 7 | 9 | 119

size48 / 56 / 64px primary controls with matching insets.'compact' | 'regular' | 'large''regular'

glyphSizingThe accepted optical scale is 22 / 24 / 26px.'optical' | 'footprint' | 'dot-weight''optical'

slowSlows animation only, never gestures, operation time or media clocks.booleanfalse

reducedMotionImmediate state clarity without indirect travel or activity loops. The system preference takes precedence.booleanfalse

disabledSuspend interaction and cancel active gestures.booleanfalse

Information

Category: Dot Matrix
Files: components/dot-matrix/MatrixRange.tsx
components/dot-matrix/RangeTimeline.tsx
components/dot-matrix/context.tsx
components/dot-matrix/dot-matrix.css
components/dot-matrix/glyphs.ts
components/dot-matrix/motion.ts
components/dot-matrix/range-entry.ts
components/dot-matrix/tokens.ts
components/dot-matrix/useCollectionMotion.ts
Dependencies: React 18.2 or 19 and React DOM; no additional runtime packages
Compatibility: React 18.2 / 19, TypeScript, CSS imports, Modern browsers
Version: 0.1.0
Updated: Oct 1, 2026
Registry: dot-matrix-range