Custom post status workaround

custom-post_status.php

<?php 


/**
 * Register Custom Status
 *
 */
function custom_archived_post_status() {

	$args = array(
		'label'                     => _x( 'Archived', 'Status General Name', 'text_domain' ),
		'label_count'               => _n_noop( 'Archived (%s)', 'Archived (%s)', 'text_domain' ),
		'public'                    => true,
		'show_in_admin_all_list'    => true,
		'show_in_admin_status_list' => true,
		'exclude_from_search'       => false,
	);
	register_post_status( 'archived', $args );

}

add_action( 'init', 'custom_archived_post_status', 0 );


/**
 * Inject it into the edit forms
 *
 */
function custom_status_into_inline_edit() { // ultra-simple example
	echo "<script>
	jQuery(document).ready( function() {
		// quick edit
		jQuery( 'select[name="_status"]' ).append( '<option value="archived">Archived</option>' );
		// post page
		jQuery( 'select[name="post_status"]' ).append( '<option value="archived">Archived</option>' );
	});
	</script>";
}
add_action( 'admin_footer-edit.php', 'custom_status_into_inline_edit' );
add_action( 'admin_footer-post.php', 'custom_status_into_inline_edit' );

/**
 * Display the status in the dropdown
 */
function custom_display_status_label( $statuses ) {
	global $post; // we need it to check current post status
	if ( get_query_var( 'post_status' ) != 'archived' ) { // not for pages with all posts of this status
		if ( $post->post_status == 'archived' ) { 
			return array( 'Archived' ); // returning our status label
		}
	}

	return $statuses; // returning the array with default statuses
}

add_filter( 'display_post_states', 'custom_display_status_label' );