MT | ECP | Add a recurring all body class to the recurring all page

tribe_body_class_recurring_all.php

<?php

if ( ! function_exists( 'tribe_body_class_recurring_all' ) ) {
	/**
	 * Adds a recurring all body class to the recurring all page
	 *
	 * @see body_class
	 */
	function tribe_body_class_recurring_all( $classes, $class ) {

		if ( tribe_events_is_recurring_all() ) {
			$classes[] = 'tribe-events-recurring-all';
		}

		return $classes;
	}
}

if ( ! function_exists( 'tribe_events_is_recurring_all' ) ) {
	/**
	 * Checks if this is the /all/ page created for recurring events
	 *
	 * @return bool
	 */
	function tribe_events_is_recurring_all() {
		$is_page = ( get_query_var( 'eventDisplay' ) === 'all' );

		return apply_filters( 'tribe_events_is_recurring_all', $is_page );
	}
}

add_filter( 'body_class', 'tribe_body_class_recurring_all', 10, 2 );