media-fullscreen-button

Accessible fullscreen toggle button with keyboard support and state reflection

Anatomy

<media-fullscreen-button></media-fullscreen-button>

Behavior

Toggles fullscreen mode. The button derives two state hooks from availability:

disabled (true when the API is available but not currently usable, or when the disabled prop is set) — sets aria-disabled="true" and data-disabled so the button stays focusable but does not activate.
hidden (true when fullscreen is "unsupported") — applies the native HTML hidden attribute on the custom element; the React component returns null.

Styling

You can style the button based on fullscreen state:

/* In fullscreen */
media-fullscreen-button[data-fullscreen] {
  background: red;
}

/* Non-interactive (disabled prop or temporarily unavailable) */
media-fullscreen-button[data-disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

React renders a <button> element. Add a className to style it:

/* In fullscreen */
.fullscreen-button[data-fullscreen] {
  background: red;
}

/* Non-interactive (disabled prop or temporarily unavailable) */
.fullscreen-button[data-disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

Unsupported environments hide the button automatically — the HTML element receives the native hidden attribute, and the React component returns null. No extra CSS is required.

Accessibility

Renders a <button> with an automatic aria-label: “Enter fullscreen” or “Exit fullscreen”. Override with the label prop. Keyboard activation: Enter / Space.

Examples

Basic Usage

import { createPlayer, FullscreenButton } from '@videojs/react';
import { Video, videoFeatures } from '@videojs/react/video';

const Player = createPlayer({ features: videoFeatures });

export default function BasicUsage() {
  return (
    <Player.Provider>
      <Player.Container className="media-container">
        <Video
          src="https://stream.mux.com/BV3YZtogl89mg9VcNBhhnHm02Y34zI1nlMuMQfAbl3dM/highest.mp4"
          autoPlay
          muted
          playsInline
          loop
        />
        <FullscreenButton
          className="media-fullscreen-button"
          render={(props, state) => <button {...props}>{state.fullscreen ? 'Exit Fullscreen' : 'Fullscreen'}</button>}
        />
      </Player.Container>
    </Player.Provider>
  );
}

.media-container {
  position: relative;
}

.media-container video {
  width: 100%;
}

.media-fullscreen-button {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding-block: 8px;
  padding-inline: 20px;
  color: black;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 9999px;
  backdrop-filter: blur(10px);
}

Exit Fullscreen Fullscreen

<video-player class="video-player">
    <media-container>
        <video
            src="https://stream.mux.com/BV3YZtogl89mg9VcNBhhnHm02Y34zI1nlMuMQfAbl3dM/highest.mp4"
            autoplay
            muted
            playsinline
            loop
        ></video>
        <media-fullscreen-button class="media-fullscreen-button">
            <span class="fullscreen">Exit Fullscreen</span>
            <span class="not-fullscreen">Fullscreen</span>
        </media-fullscreen-button>
    </media-container>
</video-player>

.video-player {
  position: relative;
  display: block;
}

.video-player video {
  width: 100%;
}

.media-fullscreen-button {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding-block: 8px;
  padding-inline: 20px;
  color: black;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 9999px;
  backdrop-filter: blur(10px);
}

.media-fullscreen-button .fullscreen {
  display: none;
}
.media-fullscreen-button .not-fullscreen {
  display: none;
}
.media-fullscreen-button[data-fullscreen] .fullscreen {
  display: inline;
}
.media-fullscreen-button:not([data-fullscreen]) .not-fullscreen {
  display: inline;
}

import '@videojs/html/video/player';
import '@videojs/html/ui/fullscreen-button';

API Reference

Props

Prop	Type	Default
`disabled`	`boolean`	`false`
Attribute `disabled` Description Whether the button is disabled.
`label`	`string \| function`	`''`
Attribute `label` Description Custom label for the button. Type `string \| ((state: FullscreenButtonState) => string)`

State

State is accessible via the render, className, and style props.

State is reflected as data attributes for CSS styling.

Property	Type	Details
`availability`	`'available' \| 'unavailable' \| 'unsupp...`
Description Whether fullscreen can be requested on this platform. Type `'available' \| 'unavailable' \| 'unsupported'`
`disabled`	`boolean`
Description Non-interactive but still focusable (mirrors `aria-disabled`).
`hidden`	`boolean`
Description Removed from the layout because fullscreen is unsupported.
`fullscreen`	`boolean`
Description Whether fullscreen mode is currently active.
`label`	`string`

Data attributes

Attribute	Type	Details
`data-fullscreen`
Description Present when fullscreen mode is active.
`data-availability`	`'available' \| 'unavailable' \| 'unsupp...`
Description Indicates fullscreen availability (`available`, `unavailable`, `unsupported`). Type `'available' \| 'unavailable' \| 'unsupported'`
`data-disabled`
Description Present when the button is non-interactive (mirrors `aria-disabled`).
`data-hidden`
Description Present when the button is hidden because fullscreen is unsupported.