<?php

function alx_ext_post_formats_meta_box( $meta_boxes ) {

	/* do not show */
	$prefix = '_';
	
	if ( get_theme_mod( 'alx-meta-box-audio', 'on' ) == 'on') {
	
		/*  Format: audio
		/* ------------------------------------ */
		$meta_boxes[] = array(
			'id' => 'format-audio',
			'title' => esc_html__( 'Format: Audio', 'alx' ),
			'post_types' => array( 'post' ),
			'context' => 'advanced',
			'priority' => 'high',
			'autosave' => false,
			'fields' => array(
				array(
					'id' => $prefix . 'audio_url',
					'type' => 'text',
					'name' => esc_html__( 'Audio URL', 'alx' ),
				),
			),
		);
	
	}
	
	if ( get_theme_mod( 'alx-meta-box-video', 'on' ) == 'on') {
		
		/*  Format: video
		/* ------------------------------------ */
		$meta_boxes[] = array(
			'id' => 'format-video',
			'title' => esc_html__( 'Format: Video', 'alx' ),
			'post_types' => array( 'post' ),
			'context' => 'advanced',
			'priority' => 'high',
			'autosave' => false,
			'fields' => array(
				array(
					'id' => $prefix . 'video_url',
					'type' => 'text',
					'name' => esc_html__( 'Video URL', 'alx' ),
				),
			),
		);
		
	}	

	return $meta_boxes;
}

add_filter( 'rwmb_meta_boxes', 'alx_ext_post_formats_meta_box', 11 );