Add upstream

wp-content/plugins/jetpack/extensions/blocks/repeat-visitor/repeat-visitor.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Repeat Visitor Block
+ *
+ * @since 7.2.0
+ *
+ * @package Jetpack
+ */
+
+jetpack_register_block(
+	'jetpack/repeat-visitor',
+	array(
+		'render_callback' => 'jetpack_repeat_visitor_block_render',
+	)
+);
+
+/**
+ * Repeat Visitor block dependency declaration.
+ *
+ * @param array  $attributes Array containing the block attributes.
+ * @param string $content    String containing the block content.
+ *
+ * @return string
+ */
+function jetpack_repeat_visitor_block_render( $attributes, $content ) {
+	Jetpack_Gutenberg::load_assets_as_required( 'repeat-visitor' );
+
+	$count     = isset( $_COOKIE['jp-visit-counter'] ) ? intval( $_COOKIE['jp-visit-counter'] ) : 0;
+	$criteria  = isset( $attributes['criteria'] ) ? $attributes['criteria'] : 'after-visits';
+	$threshold = isset( $attributes['threshold'] ) ? intval( $attributes['threshold'] ) : 3;
+
+	if (
+		( 'after-visits' === $criteria && $count >= $threshold ) ||
+		( 'before-visits' === $criteria && $count < $threshold )
+	) {
+		return $content;
+	}
+
+	// return an empty div so that view script increments the visit counter in the cookie.
+	return '<div class="wp-block-jetpack-repeat-visitor"></div>';
+}