<!DOCTYPE html>
<!-- xlsx.js (C) 2013-2015 SheetJS http://sheetjs.com -->
<!-- vim: set ts=2: -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>JS-XLSX Live Demo</title>
<style>
#drop{
	border:2px dashed #bbb;
	-moz-border-radius:5px;
	-webkit-border-radius:5px;
	border-radius:5px;
	padding:25px;
	text-align:center;
	font:20pt bold,"Vollkorn";color:#bbb
}
#b64data{
	width:100%;
}
</style>
</head>
<body>
<b>JS-XLSX (XLSX/XLSB/XLSM/XLS/XML) Live Demo</b><br />
Output Format:
<select name="format">
<option value="csv" selected> CSV</option>
<option value="json"> JSON</option>
<option value="form"> FORMULAE</option>
</select><br />
<!--<input type="radio" name="format" value="csv" checked> CSV<br>
<input type="radio" name="format" value="json"> JSON<br>
<input type="radio" name="format" value="form"> FORMULAE<br> -->

<div id="drop">Drop an XLSX / XLSM / XLSB / ODS / XLS / XML file here to see sheet data</div>
<p><input type="file" name="xlfile" id="xlf" /> ... or click here to select a file</p>
<textarea id="b64data">... or paste a base64-encoding here</textarea>
<input type="button" id="dotext" value="Click here to process the base64 text" onclick="b64it();"/><br />
Advanced Demo Options: <br />
Use Web Workers: (when available) <input type="checkbox" name="useworker" checked><br />
Use Transferrables: (when available) <input type="checkbox" name="xferable" checked><br />
Use readAsBinaryString: (when available) <input type="checkbox" name="userabs" checked><br />
<pre id="out"></pre>
<br />
<!-- uncomment the next line here and in xlsxworker.js for encoding support -->
<!--<script src="dist/cpexcel.js"></script>-->
<script src="shim.js"></script>
<script src="jszip.js"></script>
<script src="xlsx.js"></script>
<!-- uncomment the next line here and in xlsxworker.js for ODS support -->
<script src="dist/ods.js"></script>
<script>
var X = XLSX;
var XW = {
	/* worker message */
	msg: 'xlsx',
	/* worker scripts */
	rABS: './xlsxworker2.js',
	norABS: './xlsxworker1.js',
	noxfer: './xlsxworker.js'
};

var rABS = typeof FileReader !== "undefined" && typeof FileReader.prototype !== "undefined" && typeof FileReader.prototype.readAsBinaryString !== "undefined";
if(!rABS) {
	document.getElementsByName("userabs")[0].disabled = true;
	document.getElementsByName("userabs")[0].checked = false;
}

var use_worker = typeof Worker !== 'undefined';
if(!use_worker) {
	document.getElementsByName("useworker")[0].disabled = true;
	document.getElementsByName("useworker")[0].checked = false;
}

var transferable = use_worker;
if(!transferable) {
	document.getElementsByName("xferable")[0].disabled = true;
	document.getElementsByName("xferable")[0].checked = false;
}

var wtf_mode = false;

function fixdata(data) {
	var o = "", l = 0, w = 10240;
	for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint8Array(data.slice(l*w,l*w+w)));
	o+=String.fromCharCode.apply(null, new Uint8Array(data.slice(l*w)));
	return o;
}

function ab2str(data) {
	var o = "", l = 0, w = 10240;
	for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint16Array(data.slice(l*w,l*w+w)));
	o+=String.fromCharCode.apply(null, new Uint16Array(data.slice(l*w)));
	return o;
}

function s2ab(s) {
	var b = new ArrayBuffer(s.length*2), v = new Uint16Array(b);
	for (var i=0; i != s.length; ++i) v[i] = s.charCodeAt(i);
	return [v, b];
}

function xw_noxfer(data, cb) {
	var worker = new Worker(XW.noxfer);
	worker.onmessage = function(e) {
		switch(e.data.t) {
			case 'ready': break;
			case 'e': console.error(e.data.d); break;
			case XW.msg: cb(JSON.parse(e.data.d)); break;
		}
	};
	var arr = rABS ? data : btoa(fixdata(data));
	worker.postMessage({d:arr,b:rABS});
}

function xw_xfer(data, cb) {
	var worker = new Worker(rABS ? XW.rABS : XW.norABS);
	worker.onmessage = function(e) {
		switch(e.data.t) {
			case 'ready': break;
			case 'e': console.error(e.data.d); break;
			default: xx=ab2str(e.data).replace(/\n/g,"\\n").replace(/\r/g,"\\r"); console.log("done"); cb(JSON.parse(xx)); break;
		}
	};
	if(rABS) {
		var val = s2ab(data);
		worker.postMessage(val[1], [val[1]]);
	} else {
		worker.postMessage(data, [data]);
	}
}

function xw(data, cb) {
	transferable = document.getElementsByName("xferable")[0].checked;
	if(transferable) xw_xfer(data, cb);
	else xw_noxfer(data, cb);
}

function get_radio_value( radioName ) {
	var radios = document.getElementsByName( radioName );
	for( var i = 0; i < radios.length; i++ ) {
		if( radios[i].checked || radios.length === 1 ) {
			return radios[i].value;
		}
	}
}

function to_json(workbook) {
	var result = {};
	workbook.SheetNames.forEach(function(sheetName) {
		var roa = X.utils.sheet_to_row_object_array(workbook.Sheets[sheetName]);
		if(roa.length > 0){
			result[sheetName] = roa;
		}
	});
	return result;
}

function to_csv(workbook) {
	var result = [];
	workbook.SheetNames.forEach(function(sheetName) {
		var csv = X.utils.sheet_to_csv(workbook.Sheets[sheetName]);
		if(csv.length > 0){
			result.push("SHEET: " + sheetName);
			result.push("");
			result.push(csv);
		}
	});
	return result.join("\n");
}

function to_formulae(workbook) {
	var result = [];
	workbook.SheetNames.forEach(function(sheetName) {
		var formulae = X.utils.get_formulae(workbook.Sheets[sheetName]);
		if(formulae.length > 0){
			result.push("SHEET: " + sheetName);
			result.push("");
			result.push(formulae.join("\n"));
		}
	});
	return result.join("\n");
}

var tarea = document.getElementById('b64data');
function b64it() {
	if(typeof console !== 'undefined') console.log("onload", new Date());
	var wb = X.read(tarea.value, {type: 'base64',WTF:wtf_mode});
	process_wb(wb);
}

function process_wb(wb) {
	var output = "";
	switch(get_radio_value("format")) {
		case "json":
			output = JSON.stringify(to_json(wb), 2, 2);
			break;
		case "form":
			output = to_formulae(wb);
			break;
		default:
		output = to_csv(wb);
	}
	if(out.innerText === undefined) out.textContent = output;
	else out.innerText = output;
	if(typeof console !== 'undefined') console.log("output", new Date());
}

var drop = document.getElementById('drop');
function handleDrop(e) {
	e.stopPropagation();
	e.preventDefault();
	rABS = document.getElementsByName("userabs")[0].checked;
	use_worker = document.getElementsByName("useworker")[0].checked;
	var files = e.dataTransfer.files;
	var f = files[0];
	{
		var reader = new FileReader();
		var name = f.name;
		reader.onload = function(e) {
			if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
			var data = e.target.result;
			if(use_worker) {
				xw(data, process_wb);
			} else {
				var wb;
				if(rABS) {
					wb = X.read(data, {type: 'binary'});
				} else {
				var arr = fixdata(data);
					wb = X.read(btoa(arr), {type: 'base64'});
				}
				process_wb(wb);
			}
		};
		if(rABS) reader.readAsBinaryString(f);
		else reader.readAsArrayBuffer(f);
	}
}

function handleDragover(e) {
	e.stopPropagation();
	e.preventDefault();
	e.dataTransfer.dropEffect = 'copy';
}

if(drop.addEventListener) {
	drop.addEventListener('dragenter', handleDragover, false);
	drop.addEventListener('dragover', handleDragover, false);
	drop.addEventListener('drop', handleDrop, false);
}


var xlf = document.getElementById('xlf');
function handleFile(e) {
	rABS = document.getElementsByName("userabs")[0].checked;
	use_worker = document.getElementsByName("useworker")[0].checked;
	var files = e.target.files;
	var f = files[0];
	{
		var reader = new FileReader();
		var name = f.name;
		reader.onload = function(e) {
			if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
			var data = e.target.result;
			if(use_worker) {
				xw(data, process_wb);
			} else {
				var wb;
				if(rABS) {
					wb = X.read(data, {type: 'binary'});
				} else {
				var arr = fixdata(data);
					wb = X.read(btoa(arr), {type: 'base64'});
				}
				process_wb(wb);
			}
		};
		if(rABS) reader.readAsBinaryString(f);
		else reader.readAsArrayBuffer(f);
	}
}

if(xlf.addEventListener) xlf.addEventListener('change', handleFile, false);
</script>
</body>
</html>