pdfjs-dist/lib/web/download_manager.js

/* Copyright 2017 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.
 */
'use strict';
var pdfjsLib = require('./pdfjs.js');
function download(blobUrl, filename) {
 var a = document.createElement('a');
 if (a.click) {
  a.href = blobUrl;
  a.target = '_parent';
  if ('download' in a) {
   a.download = filename;
  }
  (document.body || document.documentElement).appendChild(a);
  a.click();
  a.parentNode.removeChild(a);
 } else {
  if (window.top === window && blobUrl.split('#')[0] === window.location.href.split('#')[0]) {
   var padCharacter = blobUrl.indexOf('?') === -1 ? '?' : '&';
   blobUrl = blobUrl.replace(/#|$/, padCharacter + '$&');
  }
  window.open(blobUrl, '_parent');
 }
}
function DownloadManager() {
}
DownloadManager.prototype = {
 downloadUrl: function DownloadManager_downloadUrl(url, filename) {
  if (!pdfjsLib.createValidAbsoluteUrl(url, 'http://example.com')) {
   return;
  }
  download(url + '#pdfjs.action=download', filename);
 },
 downloadData: function DownloadManager_downloadData(data, filename, contentType) {
  if (navigator.msSaveBlob) {
   return navigator.msSaveBlob(new Blob([data], { type: contentType }), filename);
  }
  var blobUrl = pdfjsLib.createObjectURL(data, contentType, pdfjsLib.PDFJS.disableCreateObjectURL);
  download(blobUrl, filename);
 },
 download: function DownloadManager_download(blob, url, filename) {
  if (navigator.msSaveBlob) {
   if (!navigator.msSaveBlob(blob, filename)) {
    this.downloadUrl(url, filename);
   }
   return;
  }
  if (pdfjsLib.PDFJS.disableCreateObjectURL) {
   this.downloadUrl(url, filename);
   return;
  }
  var blobUrl = URL.createObjectURL(blob);
  download(blobUrl, filename);
 }
};
exports.DownloadManager = DownloadManager;