Customize native gallery search

Hi,

I need to customize the search of the gallery. I’ve got the script for this, is already working on wp-admin/upload.php, but I need to also work in the search for media gallery. Anyone have any idea to solve this?

Follows the code I’m using:

function atom_search_where($where, $query){
	global $wpdb;

    //if we are not on admin or the current search is not on attachment return
    if(!is_admin() || (!isset($query->query['post_type']) || $query->query['post_type'] != 'attachment'))
        return $where;

    //  if current query is the main query and a search...
    if( is_main_query() && is_search() )
    {
        //  explictly search post_tag taxonomies
        $where .= "OR (post_type = 'attachment' AND t.name LIKE '%".get_search_query()."%')";

    }

    return $where;

}

function atom_search_join( $join, $query){

	global $wpdb;

    //if we are not on admin or the current search is not on attachment return
    if(!is_admin() || (!isset($query->query['post_type']) || $query->query['post_type'] != 'attachment'))
        return $join;

    //  if current query is the main query and a search...
    if( is_main_query() && is_search() )
    {
        $join .= "INNER JOIN {$wpdb->term_relationships} tr ON {$wpdb->posts}.ID = tr.object_id INNER JOIN {$wpdb->term_taxonomy} tt ON tt.term_taxonomy_id=tr.term_taxonomy_id INNER JOIN {$wpdb->terms} t ON t.term_id = tt.term_id";
    }

    return $join;
}

add_filter('posts_where','atom_search_where', 10, 2 );
add_filter('posts_join', 'atom_search_join', 10, 2 );

Sorry my english