text: /* Copyright 2020 Mozilla Foundation
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  /* globals __non_webpack_require__ */
  
  import {
    BaseCanvasFactory,
    BaseCMapReaderFactory,
    BaseStandardFontDataFactory,
  } from "./base_factory.js";
  
  if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
    throw new Error(
      'Module "./node_utils.js" shall not be used with MOZCENTRAL builds.'
    );
  }
  
  const fetchData = function (url) {
    return new Promise((resolve, reject) => {
      const fs = __non_webpack_require__("fs");
      fs.readFile(url, (error, data) => {
        if (error || !data) {
          reject(new Error(error));
          return;
        }
        resolve(new Uint8Array(data));
      });
    });
  };
  
  class NodeCanvasFactory extends BaseCanvasFactory {
    /**
     * @ignore
     */
    _createCanvas(width, height) {
      const Canvas = __non_webpack_require__("canvas");
      return Canvas.createCanvas(width, height);
    }
  }
  
  class NodeCMapReaderFactory extends BaseCMapReaderFactory {
    /**
     * @ignore
     */
    _fetchData(url, compressionType) {
      return fetchData(url).then(data => {
        return { cMapData: data, compressionType };
      });
    }
  }
  
  class NodeStandardFontDataFactory extends BaseStandardFontDataFactory {
    /**
     * @ignore
     */
    _fetchData(url) {
      return fetchData(url);
    }
  }
  
  export {
    NodeCanvasFactory,
    NodeCMapReaderFactory,
    NodeStandardFontDataFactory,
  };
  