text: /**
   * @licstart The following is the entire license notice for the
   * Javascript code in this page
   *
   * Copyright 2021 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.
   *
   * @licend The above is the entire license notice for the
   * Javascript code in this page
   */
  "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.DownloadManager = void 0;
  
  var _pdf = require("../pdf");
  
  var _viewer_compatibility = require("./viewer_compatibility.js");
  
  ;
  
  function download(blobUrl, filename) {
    const a = document.createElement("a");
  
    if (!a.click) {
      throw new Error('DownloadManager: "a.click()" is not supported.');
    }
  
    a.href = blobUrl;
    a.target = "_parent";
  
    if ("download" in a) {
      a.download = filename;
    }
  
    (document.body || document.documentElement).appendChild(a);
    a.click();
    a.remove();
  }
  
  class DownloadManager {
    constructor() {
      this._openBlobUrls = new WeakMap();
    }
  
    downloadUrl(url, filename) {
      if (!(0, _pdf.createValidAbsoluteUrl)(url, "http://example.com")) {
        return;
      }
  
      download(url + "#pdfjs.action=download", filename);
    }
  
    downloadData(data, filename, contentType) {
      const blobUrl = (0, _pdf.createObjectURL)(data, contentType, _viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL);
      download(blobUrl, filename);
    }
  
    openOrDownloadData(element, data, filename) {
      const isPdfData = (0, _pdf.isPdfFile)(filename);
      const contentType = isPdfData ? "application/pdf" : "";
  
      if (isPdfData && !_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
        let blobUrl = this._openBlobUrls.get(element);
  
        if (!blobUrl) {
          blobUrl = URL.createObjectURL(new Blob([data], {
            type: contentType
          }));
  
          this._openBlobUrls.set(element, blobUrl);
        }
  
        let viewerUrl;
        viewerUrl = "?file=" + encodeURIComponent(blobUrl + "#" + filename);
  
        try {
          window.open(viewerUrl);
          return true;
        } catch (ex) {
          console.error(`openOrDownloadData: ${ex}`);
          URL.revokeObjectURL(blobUrl);
  
          this._openBlobUrls.delete(element);
        }
      }
  
      this.downloadData(data, filename, contentType);
      return false;
    }
  
    download(blob, url, filename, sourceEventType = "download") {
      if (_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
        this.downloadUrl(url, filename);
        return;
      }
  
      const blobUrl = URL.createObjectURL(blob);
      download(blobUrl, filename);
    }
  
  }
  
  exports.DownloadManager = DownloadManager;