J3W1 / DESIGN SYSTEM

Button group

Related independent native actions with individual tab stops.

stable · LIGHT DOM · 1.1.0

Light DOM retains static content, native semantics, label relationships and host composition without duplicating controls.

Standalone example ↗Copy file manifest Canonical JSON Vue gallery ↗Prepare an agent kit →

Live variants

default

<j3w1-button-group id="example-button-group-default"><div class="button-group" role="group" aria-label="Document actions"><button class="button-group-control" type="button" data-action="save" data-demo-focus-target="">Save</button><button class="button-group-control" type="button" data-action="duplicate">Duplicate</button><button class="button-group-control" type="button" disabled="">Archive</button></div></j3w1-button-group>

Install and register

Use the exact version. If npm publication is pending, install the release tarball from the installation guide.

npm install --save-exact @j3w1/ui@1.1.0

import '@j3w1/ui/tokens.css';
import '@j3w1/ui/styles/button-group.css';
import '@j3w1/ui/register/button-group';

Insert the maintained markup above after loading these imports. Its native children provide accessible names and form behavior; the empty custom tag alone does not create a control.

Vue SFC, React, Astro and plain HTML integration →

Copy the complete implementation

npx --package=@j3w1/ui@1.1.0 j3w1-ui copy button-group --out ./vendor/j3w1/button-group

The CLI verifies every file before writing and refuses overwrites. Serve the output over HTTP and open index.html. Keep its modules, CSS, tokens and licence notices together.

Public API

attributes

Name	Type / signature	Meaning
`disabled`	`CustomEvent`	Disable the native controls owned by this instance.
`loading`	`CustomEvent`	Mark the primary control busy and prevent duplicate activation.
`tone`	`CustomEvent`	Button tone: primary, secondary, tertiary or destructive.

properties

Name	Type / signature	Meaning
`disabled`	`boolean`	Delegates disabled state to native children.
`name`	`string`	Native control name; application form keys remain explicit.

methods

Name	Type / signature	Meaning
`refresh`	`(): void`	Reconnect behavior after replacing native child structure.
`focus`	`(options?: FocusOptions): void`	Focus the first usable native control.

events

Name	Type / signature	Meaning
`j3w1-action`	`CustomEvent`	A native button activated. Prevent default on this event to cancel the associated native default action.

Dependencies and verification

Registered components: none. Style dependencies: none.

Package presence establishes an available implementation. Actual passes depend on the tested artifact and environment. Read specification execution evidence; read packed-consumer evidence; inspect the complete state matrix.

Full implementation manifest, API and token dependency closure

Canonical specification

Purpose

Group related independent actions without turning them into an exclusive choice. Each button keeps its native type, accessible name and tab stop. Application effects belong to the host.

Anatomy

group: Labelled group that wraps its buttons.
actions: Independent buttons in source order.

States

State	Presentation	Non-colour channel
default	Named content on the default surface.	Native text and structure.
focus-visible	Dashed focus ring.	Native keyboard focus position.
disabled	Disabled semantic foreground, background and border at full opacity.	Native disabled state blocks activation.

Keyboard

Tab / Shift+Tab: Visit each enabled button.
Enter / Space: Activate the focused native button.

Accessibility

Use role=group with a visible or accessible label. Buttons retain distinct names and native disabled behavior. A button group does not add arrow-key navigation or selection semantics.

Portability

Wrap labels and actions without changing source order. Use logical spacing in RTL. Preserve native target sizes at both densities; only bounded data regions may scroll horizontally. Use equivalent native semantics and approved roles; record any unsupported behavior as a mapping deviation. The host owns application data, persistence, permissions and services.

Non-examples

Unlabelled controls, color-only status, drag-only operations, hidden required instructions, stolen focus or an invented service success.