PlayerController

<demo-ctrl-player class="demo-ctrl-player">
    <media-container>
        <video
            src="https://stream.mux.com/BV3YZtogl89mg9VcNBhhnHm02Y34zI1nlMuMQfAbl3dM/highest.mp4"
            autoplay
            muted
            playsinline
        ></video>
        <div class="panel">
            <demo-ctrl-actions class="actions">
                <button type="button" class="play">Play</button>
                <button type="button" class="pause">Pause</button>
                <button type="button" class="volume">50% Volume</button>
            </demo-ctrl-actions>
            <demo-ctrl-state class="state">
                <span class="text">Paused: Yes | Time: 0.0s | Volume: 100%</span>
            </demo-ctrl-state>
        </div>
    </media-container>
</demo-ctrl-player>

.demo-ctrl-player {
  position: relative;
}

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

.panel {
  display: flex;
  gap: 16px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.05);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  align-items: center;
}

.actions {
  display: flex;
  gap: 6px;
}

.actions button {
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  background: white;
  cursor: pointer;
  font-size: 0.8125rem;
}

.state {
  font-size: 0.8125rem;
  color: #374151;
  font-variant-numeric: tabular-nums;
}

import { applyElementProps, createButton, createPlayer, MediaElement } from '@videojs/html';
import { videoFeatures } from '@videojs/html/video';
import '@videojs/html/media/container';

const { ProviderMixin, PlayerController, context } = createPlayer({
  features: videoFeatures,
});

class DemoPlayer extends ProviderMixin(MediaElement) {
  static readonly tagName = 'demo-ctrl-player';
}

class PlayerActions extends MediaElement {
  static readonly tagName = 'demo-ctrl-actions';

  readonly #player = new PlayerController(this, context);

  #disconnect: AbortController | null = null;

  override connectedCallback(): void {
    super.connectedCallback();
    this.#disconnect = new AbortController();
    const signal = this.#disconnect.signal;

    const playBtn = this.querySelector<HTMLButtonElement>('.play')!;
    const pauseBtn = this.querySelector<HTMLButtonElement>('.pause')!;
    const volumeBtn = this.querySelector<HTMLButtonElement>('.volume')!;

    const bind = (el: HTMLElement, action: () => void) => {
      const props = createButton({ onActivate: action, isDisabled: () => !this.#player.value });
      applyElementProps(el, props, signal);
    };

    bind(playBtn, () => this.#player.value?.play());
    bind(pauseBtn, () => this.#player.value?.pause());
    bind(volumeBtn, () => this.#player.value?.setVolume(0.5));
  }

  override disconnectedCallback(): void {
    super.disconnectedCallback();
    this.#disconnect?.abort();
    this.#disconnect = null;
  }
}

class PlayerState extends MediaElement {
  static readonly tagName = 'demo-ctrl-state';

  readonly #state = new PlayerController(this, context, (s) => ({
    paused: s.paused,
    currentTime: s.currentTime,
    volume: s.volume,
  }));

  protected override update(): void {
    super.update();
    const state = this.#state.value;
    if (!state) return;

    const el = this.querySelector('.text');
    if (el) {
      el.textContent = `Paused: ${state.paused ? 'Yes' : 'No'} | Time: ${state.currentTime.toFixed(1)}s | Volume: ${Math.round(state.volume * 100)}%`;
    }
  }
}

customElements.define(DemoPlayer.tagName, DemoPlayer);
customElements.define(PlayerActions.tagName, PlayerActions);
customElements.define(PlayerState.tagName, PlayerState);