shortcodes = $shortcodes; add_action( 'template_redirect', array( $this, 'add_shortcodes' ) ); } /** * For all of our defined unavailable shortcodes, if something else hasn't * already claimed them, add a handler to nullify their output. */ public function add_shortcodes() { foreach ( array_keys( $this->shortcodes ) as $shortcode ) { if ( ! shortcode_exists( $shortcode ) ) { add_shortcode( $shortcode, array( $this, 'stub_shortcode' ) ); } } } /** * Nullify the output of unavailable shortcodes. Includes a filter to make * it easier to notify admins that a shortcode that they used is unavailable. * * @param array $atts Shortcode attributes. * @param string $content Post content. * @param string $shortcode Shortcode name. * * @return mixed|void */ public function stub_shortcode( $atts, $content = '', $shortcode = '' ) { $str = ''; if ( current_user_can( 'edit_posts' ) && ! empty( $this->shortcodes[ $shortcode ] ) ) { $str = sprintf( '

%s

', $this->shortcodes[ $shortcode ] ); } /** * Filter the front-end output of unavailable shortcodes. * * @module shortcodes * * @since 4.5.0 * * @param string $str The html displayed in lieu of the shortcode. * @param array $atts The attributes (numeric or named) passed to the shortcode. * @param string $content The content (if any) between the opening and closing tags. * @param string $shortcode The shortcode tag used to invoke this. */ return apply_filters( 'jetpack_stub_shortcode', $str, $atts, $content, $shortcode ); } } /** * Init class. */ function jetpack_init_shortcode_unavailable() { new Jetpack_Shortcode_Unavailable( array( 'digg' => __( 'The Digg API was shut down in 2014.', 'jetpack' ), 'hulu' => __( 'Hulu no longer allows embedding content.', 'jetpack' ), 'blip.tv' => __( 'The Blip.tv service has been shut down since August 20th, 2015.', 'jetpack' ), 'googlevideo' => __( 'The Google Video embed service is not available anymore, it has been replaced by YouTube.', 'jetpack' ), 'jetpack-email-subscribe' => __( 'The Email Subscribe shortcode is now available as a block in the Block editor.', 'jetpack' ), 'lytro' => __( 'Lytro has been shut down since March 2019.', 'jetpack' ), ) ); } add_action( 'init', 'jetpack_init_shortcode_unavailable' );