ArtPlayer/packages/artplayer/src/events/resizeInit.js

import { sleep } from '../utils';
import { ResizeObserver } from 'resize-observer';

export default function resizeInit(art, events) {
  const { option, refs: { $player } } = art;
  const resizeObserver = new ResizeObserver(() => {
    sleep().then(() => {
      if (option.autoSize) {
        if (
          !art.player.fullscreenState &&
          !art.player.fullscreenWebState &&
          !art.player.pipState
        ) {
          art.player.autoSize();
        } else {
          art.player.autoSizeRemove();
        }
      }
      art.player.aspectRatioReset();
      art.emit('resize');
    });
  });
  resizeObserver.observe($player);
  events.destroyEvents.push(() => {
    resizeObserver.unobserve($player);
  });
}