@nextui-org/use-image/dist/index.js

React hook for progressing image loading

"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, {
  shouldShowFallbackImage: () => shouldShowFallbackImage,
  useImage: () => useImage
});
module.exports = __toCommonJS(src_exports);
var import_react = require("react");
var import_react_utils = require("@nextui-org/react-utils");
var import_use_safe_layout_effect = require("@nextui-org/use-safe-layout-effect");
function useImage(props = {}) {
  const { onLoad, onError, ignoreFallback } = props;
  const isHydrated = (0, import_react_utils.useIsHydrated)();
  const imageRef = (0, import_react.useRef)(isHydrated ? new Image() : null);
  const [status, setStatus] = (0, import_react.useState)("pending");
  (0, import_react.useEffect)(() => {
    if (!imageRef.current)
      return;
    imageRef.current.onload = (event) => {
      flush();
      setStatus("loaded");
      onLoad == null ? void 0 : onLoad(event);
    };
    imageRef.current.onerror = (error) => {
      flush();
      setStatus("failed");
      onError == null ? void 0 : onError(error);
    };
  }, [imageRef.current]);
  const flush = () => {
    if (imageRef.current) {
      imageRef.current.onload = null;
      imageRef.current.onerror = null;
      imageRef.current = null;
    }
  };
  (0, import_use_safe_layout_effect.useSafeLayoutEffect)(() => {
    if (isHydrated) {
      setStatus(setImageAndGetInitialStatus(props, imageRef));
    }
  }, [isHydrated]);
  return ignoreFallback ? "loaded" : status;
}
function setImageAndGetInitialStatus(props, imageRef) {
  const { loading, src, srcSet, crossOrigin, sizes, ignoreFallback } = props;
  if (!src)
    return "pending";
  if (ignoreFallback)
    return "loaded";
  const img = new Image();
  img.src = src;
  if (crossOrigin)
    img.crossOrigin = crossOrigin;
  if (srcSet)
    img.srcset = srcSet;
  if (sizes)
    img.sizes = sizes;
  if (loading)
    img.loading = loading;
  imageRef.current = img;
  if (img.complete && img.naturalWidth) {
    return "loaded";
  }
  return "loading";
}
var shouldShowFallbackImage = (status, fallbackStrategy) => status !== "loaded" && fallbackStrategy === "beforeLoadOrError" || status === "failed" && fallbackStrategy === "onError";
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  shouldShowFallbackImage,
  useImage
});