(.*?)#i', '\1', $custom_logo ); } if ( $attributes['isLink'] && '_blank' === $attributes['linkTarget'] ) { // Add the link target after the rel="home". // Add an aria-label for informing that the page opens in a new tab. $aria_label = 'aria-label="' . esc_attr__( '(Home link, opens in a new tab)' ) . '"'; $custom_logo = str_replace( 'rel="home"', 'rel="home" target="' . $attributes['linkTarget'] . '"' . $aria_label, $custom_logo ); } $classnames = array(); if ( ! empty( $attributes['className'] ) ) { $classnames[] = $attributes['className']; } if ( ! empty( $attributes['align'] ) && in_array( $attributes['align'], array( 'center', 'left', 'right' ), true ) ) { $classnames[] = "align{$attributes['align']}"; } if ( empty( $attributes['width'] ) ) { $classnames[] = 'is-default-size'; } $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) ); $html = sprintf( '

', $wrapper_attributes, $custom_logo ); return $html; } /** * Register a core site setting for a site logo */ function register_block_core_site_logo_setting() { register_setting( 'general', 'site_logo', array( 'show_in_rest' => array( 'name' => 'site_logo', ), 'type' => 'integer', 'description' => __( 'Site logo.' ), ) ); } add_action( 'rest_api_init', 'register_block_core_site_logo_setting', 10 ); /** * Registers the `core/site-logo` block on the server. */ function register_block_core_site_logo() { register_block_type_from_metadata( __DIR__ . '/site-logo', array( 'render_callback' => 'render_block_core_site_logo', ) ); } add_action( 'init', 'register_block_core_site_logo' ); /** * Overrides the custom logo with a site logo, if the option is set. * * @param string $custom_logo The custom logo set by a theme. * * @return string The site logo if set. */ function _override_custom_logo_theme_mod( $custom_logo ) { $site_logo = get_option( 'site_logo' ); return false === $site_logo ? $custom_logo : $site_logo; } add_filter( 'theme_mod_custom_logo', '_override_custom_logo_theme_mod' ); /** * Updates the site_logo option when the custom_logo theme-mod gets updated. * * @param mixed $value Attachment ID of the custom logo or an empty value. * @return mixed */ function _sync_custom_logo_to_site_logo( $value ) { if ( empty( $value ) ) { delete_option( 'site_logo' ); } else { update_option( 'site_logo', $value ); } return $value; } add_filter( 'pre_set_theme_mod_custom_logo', '_sync_custom_logo_to_site_logo' ); /** * Deletes the site_logo when the custom_logo theme mod is removed. * * @param array $old_value Previous theme mod settings. * @param array $value Updated theme mod settings. */ function _delete_site_logo_on_remove_custom_logo( $old_value, $value ) { global $_ignore_site_logo_changes; if ( $_ignore_site_logo_changes ) { return; } // If the custom_logo is being unset, it's being removed from theme mods. if ( isset( $old_value['custom_logo'] ) && ! isset( $value['custom_logo'] ) ) { delete_option( 'site_logo' ); } } /** * Deletes the site logo when all theme mods are being removed. */ function _delete_site_logo_on_remove_theme_mods() { global $_ignore_site_logo_changes; if ( $_ignore_site_logo_changes ) { return; } if ( false !== get_theme_support( 'custom-logo' ) ) { delete_option( 'site_logo' ); } } /** * Hooks `_delete_site_logo_on_remove_custom_logo` in `update_option_theme_mods_$theme`. * Hooks `_delete_site_logo_on_remove_theme_mods` in `delete_option_theme_mods_$theme`. * * Runs on `setup_theme` to account for dynamically-switched themes in the Customizer. */ function _delete_site_logo_on_remove_custom_logo_on_setup_theme() { $theme = get_option( 'stylesheet' ); add_action( "update_option_theme_mods_$theme", '_delete_site_logo_on_remove_custom_logo', 10, 2 ); add_action( "delete_option_theme_mods_$theme", '_delete_site_logo_on_remove_theme_mods' ); } add_action( 'setup_theme', '_delete_site_logo_on_remove_custom_logo_on_setup_theme', 11 ); /** * Removes the custom_logo theme-mod when the site_logo option gets deleted. */ function _delete_custom_logo_on_remove_site_logo() { global $_ignore_site_logo_changes; // Prevent _delete_site_logo_on_remove_custom_logo and // _delete_site_logo_on_remove_theme_mods from firing and causing an // infinite loop. $_ignore_site_logo_changes = true; // Remove the custom logo. remove_theme_mod( 'custom_logo' ); $_ignore_site_logo_changes = false; } add_action( 'delete_option_site_logo', '_delete_custom_logo_on_remove_site_logo' );