sheetjs/demos/nwjs/index.js

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var fs = require('fs');
var process_wb = (function() {
var HTMLOUT = document.getElementById('htmlout');
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var XPORT = document.getElementById('xport');
return function process_wb(wb) {
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XPORT.disabled = false;
HTMLOUT.innerHTML = "";
wb.SheetNames.forEach(function(sheetName) {
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var htmlstr = XLSX.utils.sheet_to_html(wb.Sheets[sheetName],{editable:true});
HTMLOUT.innerHTML += htmlstr;
});
};
})();
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-36810333-1']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
var do_file = (function() {
return function do_file(files) {
var f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
data = new Uint8Array(data);
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process_wb(XLSX.read(data, {type: 'array'}));
};
reader.readAsArrayBuffer(f);
};
})();
(function() {
var drop = document.getElementById('drop');
function handleDrop(e) {
e.stopPropagation();
e.preventDefault();
do_file(e.dataTransfer.files);
}
function handleDragover(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
drop.addEventListener('dragenter', handleDragover, false);
drop.addEventListener('dragover', handleDragover, false);
drop.addEventListener('drop', handleDrop, false);
})();
(function() {
var xlf = document.getElementById('xlf');
function handleFile(e) { do_file(e.target.files); }
xlf.addEventListener('change', handleFile, false);
})();
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var export_xlsx = (function() {
/* pre-build the nwsaveas input element */
var HTMLOUT = document.getElementById('htmlout');
var input = document.createElement('input');
input.style.display = 'none';
input.setAttribute('nwsaveas', 'sheetjs.xlsx');
input.setAttribute('type', 'file');
document.body.appendChild(input);
input.addEventListener('cancel',function(){ alert("Save was canceled!"); });
input.addEventListener('change',function(e){
var filename=this.value, bookType=(filename.match(/[^\.]*$/)||["xlsx"])[0];
var wb = XLSX.utils.table_to_book(HTMLOUT);
var wbout = XLSX.write(wb, {type:'buffer', bookType:bookType});
fs.writeFile(filename, wbout, function(err) {
if(!err) return alert("Saved to " + filename);
alert("Error: " + (err.message || err));
});
});
return function() { input.click(); };
})();