CategoryFilter as column selector

This fiddle uses a Google Visualization API CategoryPicker control to change the columns in a Visualization API chart.

HTML

<script src="http://www.google.com/jsapi?fake=.js"></script>
<div id="colFilter_div"></div>
<div id="chart_div"></div>
<div id="creativeCommons" style="text-align: center; width: 400px;">
    <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-nc-sa/3.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/InteractiveResource" property="dct:title" rel="dct:type">Code to use a CategoryFilter as a column selector</span> by <span xmlns:cc="http://creativecommons.org/ns#" property="cc:attributionName">Andrew Gallant</span> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_US">Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License</a>.
</div>

JavaScript

google.load('visualization', '1', {packages: ['controls']});
google.setOnLoadCallback(drawChart);

function drawChart () {
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Year');
    data.addColumn('number', 'Foo');
    data.addColumn('number', 'Bar');
    data.addColumn('number', 'Baz');
    data.addColumn('number', 'Cad');
    data.addRows([
        ['2005',  45, 60, 89, 100],
        ['2006',  155, 50, 79, 24],
        ['2007',  35, 31, 140, 53],
        ['2008',  105, 23, 43, 82],
        ['2009',  120, 56, 21, 67],
        ['2010',  65, 19, 34, 134],
        ['2011',  80, 23, 130, 40],
        ['2012',  70, 140, 83, 90]
    ]);

    var columnsTable = new google.visualization.DataTable();
    columnsTable.addColumn('number', 'colIndex');
    columnsTable.addColumn('string', 'colLabel');
    var initState= {selectedValues: []};
    // put the columns into this data table (skip column 0)
    for (var i = 1; i < data.getNumberOfColumns(); i++) {
        columnsTable.addRow([i, data.getColumnLabel(i)]);
        // you can comment out this next line if you want to have a default selection other than the whole list
        initState.selectedValues.push(data.getColumnLabel(i));
    }
    // you can set individual columns to be the default columns (instead of populating via the loop above) like this:
    // initState.selectedValues.push(data.getColumnLabel(4));
    
    var chart = new google.visualization.ChartWrapper({
        chartType: 'BarChart',
        containerId: 'chart_div',
        dataTable: data,
        options: {
            title: 'Foobar',
            width: 600,
            height: 400
        }
    });
    
    var columnFilter = new google.visualization.ControlWrapper({
        controlType: 'CategoryFilter',
        containerId: 'colFilter_div',
        dataTable: columnsTable,
        options: {
            filterColumnLabel: 'colLabel',
            ui: {
                label: 'Columns',
               ...