solid-laze/dist/esm/development/index.mjs

Lazily render components in Solid

// src/useLaze.ts
import { createEffect, createSignal, onCleanup } from "solid-js";
function useLaze(options) {
  const [visible, setVisible] = createSignal(false);
  const [ref, setRef] = createSignal(null);
  createEffect(() => {
    setVisible(false);
    const shouldRefresh = options == null ? void 0 : options.refresh;
    const current = ref();
    if (!current) {
      return;
    }
    const observer = new IntersectionObserver((entries) => {
      for (const entry of entries) {
        if (shouldRefresh) {
          setVisible(entry.isIntersecting);
        } else if (entry.isIntersecting) {
          setVisible(true);
          observer.disconnect();
        }
      }
    });
    observer.observe(current);
    onCleanup(() => {
      observer.unobserve(current);
      observer.disconnect();
    });
  });
  return {
    ref(value) {
      return setRef(() => value);
    },
    get visible() {
      return visible();
    }
  };
}
export {
  useLaze as default
};
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