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wp-content/plugins/jetpack/extensions/blocks/recipe/class-jetpack-recipe-block.php

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+<?php
+/**
+ * Jetpack Recipe Block
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\Recipe;
+
+use Jetpack_Gutenberg;
+
+/**
+ * Jetpack Recipe Block class.
+ *
+ * Helper class that lets us add schema attributes dynamically because they are not something that is store with the content.
+ * Due to the limitations of wp_kses.
+ *
+ * @since 11.1
+ */
+class Jetpack_Recipe_Block {
+	/**
+	 * Adds recipe schema attributes.
+	 *
+	 * @param array  $attr    Array containing the recipe block attributes.
+	 * @param string $content String containing the recipe block content.
+	 *
+	 * @return string
+	 */
+	public static function render( $attr, $content ) {
+		Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
+
+		$find    = array(
+			'/(class="wp-block-jetpack-recipe(\s|"))/',
+			'/(class="wp-block-jetpack-recipe-title(\s|"))/',
+			'/(class="wp-block-jetpack-recipe-description(\s|"))/',
+		);
+		$replace = array(
+			'itemscope itemtype="https://schema.org/Recipe" ${1}',
+			'itemprop="name" ${1}',
+			'itemprop="description" ${1}',
+		);
+
+		return preg_replace( $find, $replace, $content );
+	}
+
+	/**
+	 * Adds recipe hero schema attributes.
+	 *
+	 * @param array  $attr    Array containing the recipe-hero block attributes.
+	 * @param string $content String containing the recipe-hero block content.
+	 *
+	 * @return string
+	 */
+	public static function render_hero( $attr, $content ) {
+		$find    = array(
+			'<img',
+		);
+		$replace = array(
+			'<img itemprop="image" ',
+		);
+
+		return str_replace( $find, $replace, $content );
+	}
+
+	/**
+	 * Adds recipe step schema attributes.
+	 *
+	 * @param array  $attr    Array containing the recipe-step block attributes.
+	 * @param string $content String containing the recipe-step block content.
+	 *
+	 * @return string
+	 */
+	public static function render_step( $attr, $content ) {
+		$find    = array(
+			'class="wp-block-jetpack-recipe-step-name"',
+			'class="wp-block-jetpack-recipe-step-desc"',
+			'class="wp-image',
+		);
+		$replace = array(
+			'itemprop="name" class="wp-block-jetpack-recipe-step-name"',
+			'itemprop="text" class="wp-block-jetpack-recipe-step-desc"',
+			'itemprop="image" class="wp-image',
+		);
+
+		return str_replace( $find, $replace, $content );
+	}
+}