@metacell/geppetto-meta-ui/dicom-viewer/util.js

React components from geppetto-meta to create neuroscience applications and visualize data.

function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t["return"] || t["return"](); } finally { if (u) throw o; } } }; }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
import JSZip from "jszip";
import FileSaver from "file-saver";
export function createZipFromRemoteFiles(files, zipName) {
  if (!(files instanceof Array)) {
    files = [files];
  }

  // Convert url to promise, returning uint8 array
  function urlToPromise(url) {
    return new Promise(function (resolve, reject) {
      var oReq = new XMLHttpRequest();
      oReq.open("GET", url, true);
      oReq.responseType = "arraybuffer";
      oReq.onload = function (oEvent) {
        var arrayBuffer = oReq.response;
        resolve(new Uint8Array(arrayBuffer));
      };
      oReq.send();
    });
  }

  // Add an entry to zip per file
  var zip = new JSZip();
  var _iterator = _createForOfIteratorHelper(files),
    _step;
  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var filePath = _step.value;
      zip.file(filePath.split('/').pop(), urlToPromise(filePath), {
        binary: true
      });
    }

    // Send File
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
  zip.generateAsync({
    type: "blob"
  }).then(function (blob) {
    FileSaver.saveAs(blob, zipName);
  });
}