JezK
Edit File: site-logo.php
<?php /** * Server-side rendering of the `core/site-logo` block. * * @package WordPress */ /** * Renders the `core/site-logo` block on the server. * * @since 5.8.0 * * @param array $attributes The block attributes. * * @return string The render. */ function render_block_core_site_logo( $attributes ) { $adjust_width_height_filter = static function ( $image ) use ( $attributes ) { if ( empty( $attributes['width'] ) || empty( $image ) || ! $image[1] || ! $image[2] ) { return $image; } $height = (float) $attributes['width'] / ( (float) $image[1] / (float) $image[2] ); return array( $image[0], (int) $attributes['width'], (int) $height ); }; add_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); $custom_logo = get_custom_logo(); remove_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); if ( empty( $custom_logo ) ) { return ''; // Return early if no custom logo is set, avoiding extraneous wrapper div. } if ( ! $attributes['isLink'] ) { // Remove the link. $custom_logo = preg_replace( '#<a.*?>(.*?)</a>#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. $processor = new WP_HTML_Tag_Processor( $custom_logo ); $processor->next_tag( 'a' ); if ( 'home' === $processor->get_attribute( 'rel' ) ) { $processor->set_attribute( 'aria-label', __( '(Home link, opens in a new tab)' ) ); $processor->set_attribute( 'target', $attributes['linkTarget'] ); } $custom_logo = $processor->get_updated_html(); } $classnames = array(); if ( empty( $attributes['width'] ) ) { $classnames[] = 'is-default-size'; } $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) ); $html = sprintf( '<div %s>%s</div>', $wrapper_attributes, $custom_logo ); return $html; } /** * Register a core site setting for a site logo * * @since 5.8.0 */ function register_block_core_site_logo_setting() { register_setting( 'general', 'site_logo', array( 'show_in_rest' => array( 'name' => 'site_logo', ), 'type' => 'integer', 'label' => __( 'Logo' ), 'description' => __( 'Site logo.' ), ) ); } add_action( 'rest_api_init', 'register_block_core_site_logo_setting', 10 ); /** * Register a core site setting for a site icon * * @since 5.9.0 */ function register_block_core_site_icon_setting() { register_setting( 'general', 'site_icon', array( 'show_in_rest' => true, 'type' => 'integer', 'label' => __( 'Icon' ), 'description' => __( 'Site icon.' ), ) ); } add_action( 'rest_api_init', 'register_block_core_site_icon_setting', 10 ); /** * Registers the `core/site-logo` block on the server. * * @since 5.8.0 */ 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. * * @since 5.8.0 * * @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. * * @since 5.8.0 * * @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. * * @since 5.8.0 * * @global array $_ignore_site_logo_changes * * @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. * * @since 5.8.0 * * @global array $_ignore_site_logo_changes */ 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. * * @since 5.8.0 */ 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. * * @since 5.9.0 * * @global array $_ignore_site_logo_changes */ 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' );