// src/main.tsx
import React from 'react';
import ReactDOM from 'react-dom/client';
import { EuiProvider } from './eui';
import App from './App';

ReactDOM.createRoot(document.getElementById('root')!).render(
  <EuiProvider colorMode="light">
    <App />
  </EuiProvider>
);

5. No env vars are required. The library is fully static at build time.

Public API

EuiScreenReaderOnly

import { EuiScreenReaderOnly } from './eui/components/accessibility';

interface EuiScreenReaderOnlyProps {
  children: React.ReactElement;
  showOnFocus?: boolean;
}

Renders its child element visually hidden but accessible to screen readers. Use showOnFocus when the element should become visible on keyboard focus (e.g. skip-navigation links).

EuiSkipLink

import { EuiSkipLink } from './eui/components/accessibility';

interface EuiSkipLinkProps {
  destinationId: string;
  children?: React.ReactNode;
  position?: 'fixed' | 'static';
  overrideLinkBehavior?: boolean;
  tabIndex?: number;
}

Renders an anchor that jumps keyboard focus to a named landmark region. Required by WCAG 2.4.1 for any layout with repeated navigation. Always render it as the first focusable element in the DOM.

EuiScreenReaderLive

import { EuiScreenReaderLive } from './eui/components/accessibility';

interface EuiScreenReaderLiveProps {
  children: React.ReactNode;
  isActive?: boolean;
  role?: 'status' | 'log' | 'alert';
}

Manages an ARIA live region for dynamic announcements without visual output. Use it to notify screen readers of route changes, async data loads, or filter results updates.

EuiLiveAnnouncer

import { EuiLiveAnnouncer, EuiLiveAnnouncerProps } from './eui/components/accessibility';

A singleton wrapper component that mounts the global live-region DOM node. Mount once near your app root. Pair with the announce() service helper to imperatively push messages to assistive technology.

Working examples

Scenario - Skip navigation for a page layout

Add a skip link so keyboard users can bypass the main navigation and jump directly to content.

import React from 'react';
import { EuiSkipLink, EuiScreenReaderOnly } from './eui/components/accessibility';

export const PageLayout: React.FC<{ children: React.ReactNode }> = ({ children }) => {
  return (
    <>
      <EuiSkipLink destinationId="main-content" position="fixed">
        Skip to main content
      </EuiSkipLink>

      <nav aria-label="Primary navigation">
        {/* nav items */}
      </nav>

      <main id="main-content" tabIndex={-1}>
        {children}
      </main>
    </>
  );
};

Scenario - Announce async search results to screen readers

After a data fetch completes, push an accessible announcement without rendering visible text.

import React, { useEffect, useState } from 'react';
import { EuiScreenReaderLive } from './eui/components/accessibility';

interface SearchResultsProps {
  resultCount: number;
  isLoading: boolean;
}

export const SearchResults: React.FC<SearchResultsProps> = ({ resultCount, isLoading }) => {
  const [announcement, setAnnouncement] = useState('');

  useEffect(() => {
    if (!isLoading) {
      setAnnouncement(`Search complete. ${resultCount} result${resultCount !== 1 ? 's' : ''} found.`);
    }
  }, [isLoading, resultCount]);

  return (
    <>
      <EuiScreenReaderLive isActive={!isLoading} role="status">
        {announcement}
      </EuiScreenReaderLive>

      {/* visible result list */}
      <ul>
        <li>{resultCount} results</li>
      </ul>
    </>
  );
};

Scenario - Visually hidden helper text for form fields

Attach supplementary instructions to a form field that are read by screen readers but invisible to sighted users.

import React from 'react';
import { EuiScreenReaderOnly } from './eui/components/accessibility';

export const PasswordField: React.FC = () => {
  return (
    <div>
      <label htmlFor="password">
        Password
        <EuiScreenReaderOnly>
          <span>
            Must be at least 12 characters and include a number and a symbol.
          </span>
        </EuiScreenReaderOnly>
      </label>
      <input
        id="password"
        type="password"
        aria-describedby="password-hint"
      />
      <EuiScreenReaderOnly>
        <span id="password-hint" aria-live="polite" />
      </EuiScreenReaderOnly>
    </div>
  );
};

File walkthrough

• index.ts - Root entry point; re-exports everything from components, services, utils, and global_styling. Import from here in consuming code.
• components/ - All visual React components organized by feature. Each subdirectory has its own index.ts barrel export.
• components/accessibility/ - Screen-reader-only wrappers, skip links, and ARIA live region management components.
• custom_typings/ - TypeScript declare module blocks for SVG imports and other non-JS assets consumed internally.
• global_styling/ - Emotion theme token definitions, CSS reset, utility mixins, and responsive breakpoint helpers.
• services/ - Framework-agnostic utilities: color contrast helpers, number formatting, accessible announcement imperative API, and unique ID generation.
• utils/ - Internal TypeScript helpers: prop-type guards, React render utilities, and type narrowing functions.

Common pitfalls and fixes

• Missing EuiProvider wrapper: Components that consume Emotion theme context will throw or render unstyled. Fix: wrap the entire React tree in <EuiProvider> before any EUI component renders.
• Emotion version mismatch: EUI uses @emotion/react and @emotion/css; mixing with styled-components or a different Emotion major will break CSS injection. Fix: pin @emotion/react and @emotion/cache to the versions listed in the upstream package.json.
• TypeScript moduleResolution must be bundler or node16: Barrel index.ts files use ESM re-exports. Fix: set "moduleResolution": "bundler" in tsconfig.json.
• SVG imports cause type errors: The source references SVG files via custom_typings/. Fix: include src/eui/custom_typings in your tsconfig include array or copy the ambient declarations into your project's typings/ folder.
• moment locale tree-shaking: EUI date picker components import moment; all locales are bundled by default and inflate bundle size. Fix: use moment-locales-webpack-plugin or configure Vite's optimizeDeps to exclude unused locales.
• EuiSkipLink not the first focusable element: Browser keyboard order follows DOM order. Fix: render <EuiSkipLink> as the very first child of <body> or the topmost layout component.

Vibe-coding prompt template

I have dropped the EUI source into `src/eui/` and have a `USAGE.md` integration
guide at the project root. The upstream package is `@elastic/eui-monorepo@1.0.0`.

Please integrate EUI into my project step by step:

1. Read `USAGE.md` fully before writing any code.
2. Check my existing `tsconfig.json` and add the path alias `"@eui": ["src/eui"]`
   without breaking current aliases.
3. Wrap my application root (`src/main.tsx` or `src/index.tsx`) with `EuiProvider`
   imported from `src/eui/index.ts`. Use `colorMode="light"` unless I specify otherwise.
4. Replace any existing accessibility skip-link implementation with `EuiSkipLink`
   from `src/eui/components/accessibility`.
5. Add `EuiScreenReaderLive` to any component that announces dynamic content changes
   (search results, async loads, filter changes).
6. For any screen-reader-only helper text, use `EuiScreenReaderOnly` instead of
   custom CSS `.sr-only` classes.
7. Run `tsc --noEmit` after each change and fix type errors before proceeding.
8. Do not invent props or components not visible in `USAGE.md` or the source
   `index.ts` barrel exports.

License and credit

EUI is dual-licensed under the Elastic License 2.0 and the Server Side Public License v1. You must comply with whichever license governs your use case; see source/ file headers and the Elastic licensing FAQ for details.

Upstream repository: https://github.com/elastic/eui Upstream npm package: @elastic/eui (canonical) / @elastic/eui-monorepo@1.0.0 (this block).

This product’s unique contribution is clean room implementation of valuable code block into AVCP compatible standard.

完全なインストールガイドと統合プロンプトは購入後に解放されます。

React Email Component Framework for Developers

Automation, Utilities & Developer Tools

無料