public static function init()
{
add_shortcode(static::SHORTCODE_TAG, array(__CLASS__, 'shortcodeHandler'));
// pass a Periscope profile URL through the Periscope On Air shortcode handler
wp_embed_register_handler(self::SHORTCODE_TAG, static::PERISCOPE_PROFILE_URL_REGEX, array(__CLASS__, 'linkHandler'), 1);
// Shortcode UI, if supported
add_action('register_shortcode_ui', array(__CLASS__, 'shortcodeUI'), 5, 0);
}