forked from sheetjs/sheetjs
50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
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import XLSX from 'xlsx';
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/* note: saveAs is made available via the smart package */
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/* global saveAs */
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import { Meteor } from 'meteor/meteor';
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import { Template } from 'meteor/templating';
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import './main.html';
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Template.sheetjs.events({
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'change input' (event) {
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/* "Browser file upload form element" from SheetJS README */
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const file = event.currentTarget.files[0];
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const reader = new FileReader();
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reader.onload = function(e) {
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const data = e.target.result;
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const name = file.name;
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/* Meteor magic */
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Meteor.call('upload', data, name, function(err, wb) {
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if (err) throw err;
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/* load the first worksheet */
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const ws = wb.Sheets[wb.SheetNames[0]];
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/* generate HTML table and enable export */
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const html = XLSX.utils.sheet_to_html(ws, { editable: true });
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document.getElementById('out').innerHTML = html;
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document.getElementById('dnload').disabled = false;
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});
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};
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reader.readAsBinaryString(file);
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},
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'click button' () {
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const html = document.getElementById('out').innerHTML;
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Meteor.call('download', html, function(err, wb) {
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if (err) throw err;
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/* "Browser download file" from SheetJS README */
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const wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' });
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saveAs(new Blob([s2ab(wbout)], { type: 'application/octet-stream' }), 'sheetjs.xlsx');
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});
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},
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});
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/* eslint no-bitwise:0, no-plusplus:0 */
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function s2ab(s) {
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const buf = new ArrayBuffer(s.length);
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const view = new Uint8Array(buf);
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for (let i = 0; i !== s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
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return buf;
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}
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