Custom conditional placeholder for event categories

/*
 New conditional placeholder for events category has events

USAGE:
<ul>
[categories_list hide_empty=1]
 {has_upcoming_events}
 <li>#_CATEGORYLINK</li>
 {/has_upcoming_events}
[/categories_list]
</ul>

 */
add_action('em_category_output_condition', 'my_em_category_output_condition', 1, 4);
function my_em_category_output_condition($replacement, $condition, $match, $EM_Category){
	if( is_object($EM_Category) && preg_match('/^has_upcoming_events$/',$condition, $matches) ){
		if( EM_Events::count(array('scope'=>'future','category'=>$EM_Category->term_id)) > 0 ){
			$replacement = preg_replace("/\{\/?$condition\}/", '', $match);
		}else{
			$replacement = '';
		}
	}
	return $replacement;
}