@pdf-viewer/react/dist/utils/hooks/useLoadPdf.js

A react-pdf-viewer component for React and Next.js. Suitable for react-pdf document.

import { useState as u, useRef as T, useEffect as y } from "react";
import * as V from "pdfjs-dist";
import { getThumbnailViewport as D } from "../getThumbnailViewport.js";
import { useConfigContext as N } from "../../contexts/ConfigContext.js";
import { useDocumentPasswordContext as U } from "../../contexts/DocumentPasswordContext.js";
const h = (l, e, C = {}) => {
  const [r, I] = u(), { workerUrlAdded: L } = N(), [q, k] = u(/* @__PURE__ */ new Map()), i = T(), [v, f] = u(0), [m, x] = u(!1), { password: d, passwordError: S, setPasswordError: g, passwordRequired: P, setPasswordRequired: c } = U(), { onLoadError: p, onLoaded: w } = C;
  return y(() => {
    if (!L || !l)
      return;
    f(0), i.current = Date.now();
    const t = i.current, E = {
      url: l,
      cMapPacked: (e == null ? void 0 : e.isCompressed) ?? !0,
      ...(e == null ? void 0 : e.url) && { cMapUrl: e.url },
      ...d && { password: d },
      verbosity: V.VerbosityLevel.ERRORS
    }, n = V.getDocument(E);
    n.onProgress = (o) => {
      if (t === i.current) {
        const { loaded: b, total: a } = o, R = a ? Math.min(100, Math.round(b / a * 100)) : 0;
        f(R);
      }
    }, x(!0);
    const s = n.promise.then((o) => (t === i.current && (I(o), f(100)), w && w(o), c(!1), g(""), o)).catch((o) => {
      o instanceof Error && o.name === "PasswordException" ? (c(!0), g(o.message || "Password required")) : o instanceof Error && o.name === "InvalidPDFException" && d ? (c(!0), g("Incorrect password")) : p && p(o);
    }).finally(() => {
      x(!1);
    });
    return () => {
      s.finally(() => {
        n.destroy();
      });
    };
  }, [l, L, d, p, w]), y(() => {
    if (P)
      return;
    const t = /* @__PURE__ */ new Map();
    if (!r || m) {
      k(t);
      return;
    }
    const E = r.numPages, n = [];
    for (let s = 1; s <= E; s++) {
      const o = r.getPage(s);
      n.push(o);
    }
    Promise.all(n).then((s) => {
      s.map((o) => {
        const { thumbnailViewport: b, scale: a } = D(o), R = o.getViewport();
        t.set(o.pageNumber, {
          page: o,
          thumbnailViewport: b,
          thumbnailScale: a,
          defaultRotation: R.rotation
        });
      }), k(t);
    });
  }, [r, m, P]), {
    pdf: r,
    pages: q,
    loading: m,
    loadingProgress: v,
    passwordRequired: P,
    passwordError: S
  };
};
export {
  h as useLoadPdf
};