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wp-content/plugins/jetpack/extensions/blocks/goodreads/render.php

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+<?php
+/**
+ * Goodreads block render implementation.
+ *
+ * Loaded lazily from goodreads.php only when the block is rendered, to keep
+ * the render body out of the eager front-end PHP/opcache footprint.
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\Goodreads;
+
+use Automattic\Jetpack\Blocks;
+use Jetpack_Gutenberg;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit( 0 );
+}
+
+/**
+ * Dynamic rendering of the block.
+ *
+ * @param array $attr    Array containing the Goodreads block attributes.
+ *
+ * @return string
+ */
+function render_implementation( $attr ) {
+	Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
+
+	if ( isset( $attr['id'] ) ) {
+		if ( isset( $attr['link'] ) ) {
+			wp_enqueue_script(
+				'jetpack-goodreads-' . esc_attr( $attr['id'] ),
+				esc_url_raw( $attr['link'] ),
+				array(),
+				JETPACK__VERSION,
+				true
+			);
+		}
+
+		$id = esc_attr( $attr['id'] );
+	} else {
+		$id = '';
+	}
+
+	$classes = esc_attr( Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attr ) );
+
+	return sprintf(
+		'<div id="%1$s" class="%2$s"></div>',
+		$id,
+		$classes
+	);
+}