How can I disable sorting, page size change and search when table has no data.

I have a DataTable on my page which is initialized with no data and is using server side, I'm using this to return no data:

ajax: function(data, callback) {

    if (data.draw == 1) {
        callback({
            'draw': 1,
            'recordsTotal': 0,
            'recordsFiltered': 0,
            'data': []
        });
        return;
    }

    var column = data.columns[data.order[0].column].data;
    var dir = data.order[0].dir;

    $.ajax({
        url: '/ssp/server_processing.php',
        type: 'GET',
        contentType: "application/json; charset=utf-8",
        dataType: 'json',
        async: true,
        data: JSON.stringify(data)
    }).done(function(data) {
        callback(data); //here I' adding extra data
        if (!added) {
            new $.fn.dataTable.FixedHeader(table);
            added = true;
        }
        $("span#gridLoading").hide();
    });
},

I'm returning empty array when data.draw==1

My table is reloaded from external button click, so I would like to disable searching, sorting and page size change until my table will have data.
For now I'm disabling page size change using this:

        drawCallback: function(settings) {
            if (settings.aoData.length > 0) {
                $(this).closest('.dataTables_wrapper').find('.dataTables_length select').prop('disabled', false);
            } else {
                $(this).closest('.dataTables_wrapper').find('.dataTables_length select').prop('disabled', 'disabled');
            }
        }

but maybe there is an easier way to do this?
I think that this should be done "by-design" and should be build-in by default.

So my question is: How can I disable sorting, page size change and search when table has no data.

Here is JS Bin to play: http://live.datatables.net/forakuzu/1/edit