vue-laze/dist/cjs/development/index.cjs

Lazily render components in React

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  default: () => useLaze
});
module.exports = __toCommonJS(src_exports);

// src/useLaze.tsx
var import_vue = require("vue");
function useLaze(options) {
  const visible = (0, import_vue.ref)(false);
  const container = (0, import_vue.ref)(null);
  (0, import_vue.watchEffect)((onCleanup) => {
    visible.value = false;
    let refresh = false;
    if (options && options.refresh) {
      refresh = typeof options.refresh === "boolean" ? options.refresh : options.refresh.value;
    }
    if (container.value) {
      const current = container.value;
      const observer = new IntersectionObserver((entries) => {
        for (const entry of entries) {
          if (refresh) {
            visible.value = entry.isIntersecting;
          } else if (entry.isIntersecting) {
            visible.value = true;
            observer.disconnect();
          }
        }
      });
      observer.observe(current);
      onCleanup(() => {
        observer.unobserve(current);
        observer.disconnect();
      });
    }
  });
  return {
    ref: container,
    visible: (0, import_vue.readonly)(visible)
  };
}
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