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<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>JS-CFB 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%;
}
a { text-decoration: none }
</style>
</head>
<body>
<pre>
<b><a href="http://sheetjs.com">SheetJS CFB Preview Live Demo</a></b>
<a href="https://github.com/SheetJS/js-cfb">Source Code Repo</a>
<a href="https://github.com/SheetJS/js-cfb/issues">Issues? Something look weird? Click here and report an issue</a>
<div id="drop">Drop an XLS file here to see the CFB structure.</div>
<b>Advanced Demo Options:</b>
Use readAsBinaryString: (when available) <input type="checkbox" name="userabs" checked>
<b>Export Current File</b>
- <a id="savecfb" onclick="savefile('cfb');" href="#">Export data as CFB</a> (Container File Binary Format)
- <a id="savezip" onclick="savefile('zip');" href="#">Export data as ZIP</a>
- <a id="savemad" onclick="savefile('mad');" href="#">Export data as MAD</a> (MIME aggregate document)
</pre>
<pre id="out"></pre>
<br />
<script src="shim.js"></script>
<script src="https://unpkg.com/printj/dist/printj.min.js"></script>
<script src="cfb.js"></script>
<script src="//rawgit.com/eligrey/Blob.js/master/Blob.js"></script>
<script src="//unpkg.com/filesaver.js/FileSaver.js"></script>
<script>
/*jshint browser:true */
/* eslint-env browser */
/*global Uint8Array, ArrayBuffer */
/*global CFB, out, PRINTJ, saveAs */
/* exported savefile, download_file */
/* eslint no-use-before-define:0 */
var global_cfb;
var get_manifest = (function() {
var sprintf = PRINTJ.sprintf;
function fix_string(x/*:string*/)/*:string*/ { return x.replace(/[\u0000-\u001f]/, function($$) { return sprintf("\\u%04X", $$.charCodeAt(0)); }); }
var format_date = function(date/*:Date*/)/*:string*/ {
return sprintf("%02u-%02u-%02u %02u:%02u", date.getUTCMonth()+1, date.getUTCDate(), date.getUTCFullYear()%100, date.getUTCHours(), date.getUTCMinutes());
};
return function get_manifest(cfb) {
var out = [];
var rlen = cfb.FullPaths[0].length;
var basetime = new Date(1980,0,1);
var cnt = 0, rootsize = 0, filesize = 0;
out.push(" Length Date Time Name");
out.push(" -------- ---- ---- ----");
cfb.FileIndex.forEach(function(file/*:CFBEntry*/, i/*:number*/) {
switch(file.type) {
case 5:
basetime = file.ct || file.mt || basetime;
rootsize = file.size;
break;
case 2:
var fixname = fix_string(cfb.FullPaths[i]);
if(fixname.match(/\\u0001Sh33tJ5/)) return;
fixname = fixname.slice(rlen);
out.push(sprintf("%9lu %s <a href=\"#\" onclick=\"download_file(%d);\">%s</a>", file.size, format_date(basetime), i, fixname));
filesize += file.size;
++cnt;
}
});
out.push(" -------- -------");
out.push(sprintf("%9lu %lu file%s", rootsize || filesize, cnt, (cnt !== 1 ? "s" : "")));
return out.join("\n");
};
})();
function process_data(cfb) {
global_cfb = cfb;
var output = get_manifest(cfb);
out.innerHTML = output;
}
var do_file = (function() {
var rABS = typeof FileReader !== "undefined" && (FileReader.prototype||{}).readAsBinaryString;
var domrabs = document.getElementsByName("userabs")[0];
if(!rABS) domrabs.disabled = !(domrabs.checked = 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;
}
return function do_file(files) {
rABS = domrabs.checked;
var f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = e.target.result;
var cfb = CFB.read(rABS ? data : btoa(fixdata(data)), {type: rABS ? 'binary' : 'base64'});
process_data(cfb);
};
if(rABS) reader.readAsBinaryString(f);
else reader.readAsArrayBuffer(f);
};
})();
(function() {
var drop = document.getElementById('drop');
if(!drop.addEventListener) return;
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);
})();
var savefile = (function() {
var s2ab = function s2ab(s) {
var buf, i=0;
if(typeof ArrayBuffer !== 'undefined') {
buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
} else {
buf = new Array(s.length);
for (; i!=s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
};
return function savefile(type) {
if(!global_cfb) return alert("Must load a file first!");
if(typeof console !== 'undefined') console.log(global_cfb);
var data = CFB.write(global_cfb, {type:'binary', fileType: type});
if(typeof console !== 'undefined') console.log(data);
saveAs(new Blob([s2ab(data)],{type:"application/octet-stream"}), "SheetJSCFBDemo." + type);
};
})();
var download_file = (function() {
var a2ab = function a2ab(a) {
var o = new ArrayBuffer(a.length);
var view = new Uint8Array(o);
for (var i = 0; i!=a.length; ++i) view[i] = a[i];
return o;
};
return function download_file(i) {
if(!global_cfb) return alert("Must load a file first!");
if(typeof console !== 'undefined') console.log(global_cfb);
var file = global_cfb.FileIndex[i], data = file.content;
saveAs(new Blob([a2ab(data)],{type:"application/octet-stream"}), file.name);
};
})();
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);
})();
</script>
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