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programm.html
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programm.html
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<link href="css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
<style type="text/css">
li:hover{cursor:pointer;}
.list-group-item:hover{background-color:#f5f5f5;}
</style>
<script type="text/javascript">
var KEY = '1NY3YC1AWC8xotzD2X0dMZuBSGS5ErjEtkYboGwKuZWc';
var WORKSHEETS = 'https://spreadsheets.google.com/feeds/worksheets/' + KEY + '/public/basic?alt=json';
var TITLE_VERSIONS = 'Versioning';
var tracks = new Array();
var num_tracks = -1, loaded_tracks = 0;
function append(nodename, innerhtml, parent) {
var e = document.createElement(nodename);
if (innerhtml)
e.innerHTML = innerhtml;
if (!parent)
parent = document.getElementById('container');
return parent.appendChild(e);
}
function toggle(parent) {
var i, n;
for (i = 0; i < parent.childNodes.length && !n; i++)
if ('P' == parent.childNodes[i].nodeName) {
n = parent.childNodes[i];
n.style.display = ('none' == n.style.display ? 'block' : 'none');
}
}
function status(str) {
var s = document.getElementById('status');
if (str)
s.innerHTML = str;
return s;
}
function errmsg(msg) {
m = "Sorry, that didn't work. :\\ Please try reloading the page.";
m += '<hr/>';
m += '<span class="label label-danger">Error</span> ' + msg;
status(m).setAttribute('class', 'alert alert-danger');
return false;
}
function httpreq() {
var noreq = 'Local error: XMLHTTP not available.';
if (typeof(window.XMLHttpRequest) != 'undefined') {
try {
return new XMLHttpRequest();
} catch(e) {
return errmsg(noreq);
}
}
if (window.ActiveXObject) {
try {
return new ActiveXObject("Msxml2.XMLHTTP");
} catch(f) {
try {
return new ActiveXObject("Microsoft.XMLHTTP");
} catch(g) {
return errmsg(noreq);
}
}
}
return errmsg(noreq);
}
function httpget(url, func, wait) {
var req = httpreq();
if (!req)
return false;
req.onreadystatechange = function() {
if (req.readyState !== 4)
return;
if (req.status == 200)
func(req, url);
else
errmsg('XHR ' + req.status + ' ' + req.statusText + ' ');
}
req.open('GET', url, !wait);
req.send('');
return true;
}
function rowcol(entry) {
var rc = /^R([0-9]*)C([0-9]+)$/;
var a1 = /^([A-Z]+)([0-9]+)$/;
var ret = new Object;
var mat = rc.exec(entry.title.$t);
if (mat) {
ret.row = parseInt(mat[1]);
ret.col = parseInt(mat[2]);
} else {
mat = a1.exec(entry.title.$t);
if (!mat)
return mat;
ret.row = parseInt(mat[2]);
ret.col = mat[1];
}
return ret;
}
function feed_json(req, name) {
var resp = req.responseText;
if (!resp)
return errmsg('No data available for ' + name + ' feed.');
try {
var ws = JSON.parse(resp + '');
} catch(e) {
return errmsg('Can not parse ' + name + ' feed response.<br/>' + e);
}
if (!ws.feed)
return errmsg('No ' + name + ' feed received.');
ws.feed.linkhref = function(entry, anchor) {
for (var i = 0; i < this.entry[entry].link.length; i++)
if ('http://schemas.google.com/spreadsheets/2006#' + anchor == this.entry[entry].link[i].rel)
return this.entry[entry].link[i].href + '?alt=json';
return false;
}
ws.feed.make_table = function() {
var i, lastrc, rc, r;
this.rows = new Array;
this.cols = new Object;
this.cell = function(row, col, debug) {
var c = this.cols[col] ? this.cols[col] : col;
if (this.rows[row].c[c])
return this.entry[this.rows[row].c[c]].content.$t.trim();
return '';
}
for (i = 0; rowcol(this.entry[i]).row == 1; i++)
this.cols[this.entry[i].content.$t] = rowcol(this.entry[i]).col;
for (lastrc = rowcol(this.entry[i - 1]); i < this.entry.length; i++) {
rc = rowcol(this.entry[i]);
if (rc.row != lastrc.row) {
if (r)
this.rows.push(r);
r = new Object;
r.c = new Object;
}
r.c[rc.col] = i;
lastrc = rc;
}
if (r)
this.rows.push(r);
return this;
}
return ws.feed;
}
function track_done(ret) {
if (num_tracks == -1)
return ret;
++loaded_tracks;
var loaded = loaded_tracks.toString();
var tracks = ' track' + (1 == num_tracks ? '' : 's') + '.';
if (loaded_tracks < num_tracks) {
loaded += ' of ' + num_tracks;
tracks += '..'
}
var s = status();
if (s.getAttribute('class') != 'alert alert-danger') {
status('Loaded ' + loaded + tracks);
if (loaded_tracks == num_tracks) {
s.setAttribute('class', 'alert alert-success');
setTimeout("status('').setAttribute('style', 'display:none')", 500);
}
}
return ret;
}
function get_track(name, cellsfeed, pos) {
httpget(cellsfeed, function(req) {
var i;
var time, title, abstract, gn, fn, speaker, org;
var html, li, p;
var t = feed_json(req, name).make_table();
if (!t)
return track_done(t);
for (i = 0; i < t.rows.length; i++) {
time = t.cell(i, 'Time');
title = t.cell(i, 'Session Topic');
abstract = t.cell(i, 'Abstract of talk or project');
gn = t.cell(i, 'Given Name');
fn = t.cell(i, 'Family Name');
if (gn && fn)
speaker = gn + ' ' + fn;
else if (gn)
speaker = gn;
else if (fn)
speaker = fn;
else
speaker = '';
org = t.cell(i, 'Organization');
if (title == speaker)
speaker = '';
if (title == org)
org = '';
if (speaker == org)
org = '';
html = '<div class="row">';
html += '<div class="col-xs-1"><span class="label label-primary">' + time + '</span></div>';
html += '<div class="col-xs-11">' + title;
if (speaker || org) {
html += ' - ';
if (speaker) {
html += speaker;
if (org)
html += ', ';
}
if (org)
html += org;
}
html += '</div>';
li = append('li', html, tracks[pos]);
li.setAttribute('class', 'list-group-item');
li.setAttribute('onclick', 'toggle(this)');
p = append('p', abstract, li);
p.setAttribute('class', 'list-group-item-text');
p.setAttribute('style', 'display:none');
}
return track_done();
});
}
function got_versions(req) {
var i, name = 'Versioning', col;
var t = feed_json(req, name).make_table();
if (!t)
return t;
if (!t.cols['Track'] || !t.cols['GID']) {
if (!t.cols['Track'] && !t.cols['GID'])
col = 'Track and no column named GID';
else if (!t.cols['Track'])
col = 'Track';
else
col = 'GID';
return errmsg('Worksheet ' + name + ' has no column named ' + col + '.');
}
num_tracks = t.rows.length;
if (num_tracks)
status('Loaded 0 of ' + num_tracks + ' track' + (num_tracks != 1 ? 's' : '') + '...');
else
status('Loaded 0 tracks.').setAttribute('class', 'alert alert-warning');
for (i = 0; i < num_tracks; i++) {
tracks[i] = append('ul');
tracks[i].setAttribute('class', 'list-group');
tracks[i].setAttribute('gid', t.cell(i, 'GID'));
append('h3', t.cell(i, 'Track'), tracks[i]);
}
}
function got_worksheets(req) {
var i, j, re;
var name = 'worksheets';
var t = feed_json(req, name);
if (!t)
return t;
for (i = 0; i < t.entry.length; i++)
if (TITLE_VERSIONS == t.entry[i].title.$t)
break;
if (i == t.entry.length)
return errmsg('No ' + TITLE_VERSIONS + ' worksheet found.');
httpget(t.linkhref(i, 'cellsfeed'), got_versions, true);
for (i = 0; i < num_tracks; i++) {
re = new RegExp('\\?gid=' + tracks[i].getAttribute('gid') + '&');
for (j = 0; j < t.entry.length; j++) {
if (!re.test(t.linkhref(j, 'exportcsv')))
continue;
get_track(tracks[i].childNodes[0].innerHTML, t.linkhref(j, 'cellsfeed'), i);
break;
}
if (j == t.entry.length)
return errmsg('Worksheet for ' + tracks[i].childNodes[0].innerHTML + ' (gid=' + tracks[i].getAttribute('gid') + ') not found.');
}
}
function go() {
status('Loading...');
httpget(WORKSHEETS, got_worksheets);
}
</script>
</head>
<body onload="go()">
<div class="container" id="container">
<div class="jumbotron" style="text-align:center">
<h2>OpenTechSummit 2015</h2>
<p>Thursday, May 14<br/>Kalkscheune, Johannisstraße 2, 10117 Berlin</p>
</div>
<div id="status" class="alert alert-info">
<noscript>Please enable JavaScript to view the program.</noscript>
</div>
</div>
</body>
</html>