src/main/webapp/resources/js/jquery.fileupload.js

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/*
 * jQuery File Upload Plugin
 * https://github.com/blueimp/jQuery-File-Upload
 *
 * Copyright 2010, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

/* global define, require */
/* eslint-disable new-cap */

(function(factory) {
  'use strict';
  if (typeof define === 'function' && define.amd) {
    // Register as an anonymous AMD module:
    define(['jquery', 'jquery-ui/ui/widget'], factory);
  } else if (typeof exports === 'object') {
    // Node/CommonJS:
    factory(require('jquery'), require('./vendor/jquery.ui.widget'));
  } else {
    // Browser globals:
    factory(window.jQuery);
  }
})(function($) {
  'use strict';

  // Detect file input support, based on
  // https://viljamis.com/2012/file-upload-support-on-mobile/
  $.support.fileInput = !(
    new RegExp(
      // Handle devices which give false positives for the feature detection:
      '(Android (1\\.[0156]|2\\.[01]))' +
        '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' +
        '|(w(eb)?OSBrowser)|(webOS)' +
        '|(Kindle/(1\\.0|2\\.[05]|3\\.0))'
    ).test(window.navigator.userAgent) ||
    // Feature detection for all other devices:
    $('<input type="file"/>').prop('disabled')
  );

  // The FileReader API is not actually used, but works as feature detection,
  // as some Safari versions (5?) support XHR file uploads via the FormData API,
  // but not non-multipart XHR file uploads.
  // window.XMLHttpRequestUpload is not available on IE10, so we check for
  // window.ProgressEvent instead to detect XHR2 file upload capability:
  $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader);
  $.support.xhrFormDataFileUpload = !!window.FormData;

  // Detect support for Blob slicing (required for chunked uploads):
  $.support.blobSlice =
    window.Blob &&
    (Blob.prototype.slice ||
      Blob.prototype.webkitSlice ||
      Blob.prototype.mozSlice);

  /**
   * Helper function to create drag handlers for dragover/dragenter/dragleave