molstar
Version:
A comprehensive macromolecular library.
72 lines (71 loc) • 2.44 kB
JavaScript
;
/**
* Copyright (c) 2018-2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.download = download;
function openUrl(url) {
const opened = window.open(url, '_blank');
if (!opened) {
window.location.href = url;
}
}
function click(node) {
try {
node.dispatchEvent(new MouseEvent('click'));
}
catch (e) {
const evt = document.createEvent('MouseEvents');
evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80, 20, false, false, false, false, 0, null);
node.dispatchEvent(evt);
}
}
function download(data, downloadName = 'download') {
// using ideas from https://github.com/eligrey/FileSaver.js/blob/master/FileSaver.js
if (!data)
return;
if ('download' in HTMLAnchorElement.prototype) {
const a = document.createElement('a');
a.download = downloadName;
a.rel = 'noopener';
if (typeof data === 'string') {
a.href = data;
click(a);
}
else {
a.href = URL.createObjectURL(data);
setTimeout(() => URL.revokeObjectURL(a.href), 4E4); // 40s
setTimeout(() => click(a));
}
}
else if (typeof navigator !== 'undefined' && navigator.msSaveOrOpenBlob) {
// native saveAs in IE 10+
navigator.msSaveOrOpenBlob(data, downloadName);
}
else {
const ua = window.navigator.userAgent;
const isSafari = /Safari/i.test(ua);
const isChromeIos = /CriOS\/[\d]+/.test(ua);
const open = (str) => {
openUrl(isChromeIos ? str : str.replace(/^data:[^;]*;/, 'data:attachment/file;'));
};
if ((isSafari || isChromeIos) && FileReader) {
if (data instanceof Blob) {
// no downloading of blob urls in Safari
const reader = new FileReader();
reader.onloadend = () => open(reader.result);
reader.readAsDataURL(data);
}
else {
open(data);
}
}
else {
const url = URL.createObjectURL(typeof data === 'string' ? new Blob([data]) : data);
location.href = url;
setTimeout(() => URL.revokeObjectURL(url), 4E4); // 40s
}
}
}