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<?php |
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/** |
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* Server-side rendering of the `core/site-logo` block. |
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* |
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* @package WordPress |
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*/ |
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|
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/** |
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* Renders the `core/site-logo` block on the server. |
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* |
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* @param array $attributes The block attributes. |
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* |
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* @return string The render. |
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*/ |
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function gutenberg_render_block_core_site_logo( $attributes ) { |
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$adjust_width_height_filter = function ( $image ) use ( $attributes ) { |
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if ( empty( $attributes['width'] ) ) { |
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return $image; |
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} |
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$height = (float) $attributes['width'] / ( (float) $image[1] / (float) $image[2] ); |
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return array( $image[0], (int) $attributes['width'], (int) $height ); |
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}; |
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|
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add_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); |
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$custom_logo = get_custom_logo(); |
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$classnames = array(); |
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if ( ! empty( $attributes['className'] ) ) { |
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$classnames[] = $attributes['className']; |
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} |
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|
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if ( ! empty( $attributes['align'] ) && in_array( $attributes['align'], array( 'center', 'left', 'right' ), true ) ) { |
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$classnames[] = "align{$attributes['align']}"; |
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} |
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|
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if ( empty( $attributes['width'] ) ) { |
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$classnames[] = 'is-default-size'; |
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} |
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|
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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) ); |
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$html = sprintf( '<div %s>%s</div>', $wrapper_attributes, $custom_logo ); |
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remove_filter( 'wp_get_attachment_image_src', $adjust_width_height_filter ); |
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return $html; |
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} |
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|
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|
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/** |
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* Registers the `core/site-logo` block on the server. |
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*/ |
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function gutenberg_register_block_core_site_logo() { |
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register_block_type_from_metadata( |
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__DIR__ . '/site-logo', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_site_logo', |
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) |
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); |
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add_filter( 'pre_set_theme_mod_custom_logo', 'gutenberg_sync_site_logo_to_theme_mod' ); |
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add_filter( 'theme_mod_custom_logo', 'gutenberg_override_custom_logo_theme_mod' ); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_site_logo', 20 ); |
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|
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/** |
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* Overrides the custom logo with a site logo, if the option is set. |
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* |
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* @param string $custom_logo The custom logo set by a theme. |
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* |
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* @return string The site logo if set. |
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*/ |
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function gutenberg_override_custom_logo_theme_mod( $custom_logo ) { |
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$sitelogo = get_option( 'sitelogo' ); |
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return false === $sitelogo ? $custom_logo : $sitelogo; |
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} |
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|
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/** |
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* Syncs the site logo with the theme modified logo. |
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* |
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* @param string $custom_logo The custom logo set by a theme. |
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* |
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* @return string The custom logo. |
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*/ |
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function gutenberg_sync_site_logo_to_theme_mod( $custom_logo ) { |
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// Delete the option when the custom logo does not exist or was removed. |
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// This step ensures the option stays in sync. |
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if ( empty( $custom_logo ) ) { |
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delete_option( 'sitelogo' ); |
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} else { |
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update_option( 'sitelogo', $custom_logo ); |
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} |
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return $custom_logo; |
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} |
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|
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/** |
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* Register a core site setting for a site logo |
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*/ |
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function gutenberg_gutenberg_register_block_core_site_logo_setting() { |
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register_setting( |
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'general', |
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'sitelogo', |
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array( |
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'show_in_rest' => array( |
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'name' => 'sitelogo', |
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), |
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'type' => 'string', |
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'description' => __( 'Site logo.' ), |
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) |
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); |
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} |
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|
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add_action( 'rest_api_init', 'gutenberg_gutenberg_register_block_core_site_logo_setting', 10 ); |
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|
