init

wp-content/plugins/jetpack/extensions/blocks/send-a-message/whatsapp-button/whatsapp-button.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * WhatsApp Button Block.
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\WhatsApp_Button;
+
+use Automattic\Jetpack\Blocks;
+use Jetpack_Gutenberg;
+
+const PARENT_NAME  = 'send-a-message';
+const FEATURE_NAME = 'whatsapp-button';
+const BLOCK_NAME   = 'jetpack/' . FEATURE_NAME;
+
+/**
+ * Registers the block for use in Gutenberg
+ * This is done via an action so that we can disable
+ * registration if we need to.
+ */
+function register_block() {
+	Blocks::jetpack_register_block(
+		BLOCK_NAME,
+		array(
+			'render_callback' => __NAMESPACE__ . '\render_block',
+			'plan_check'      => true,
+		)
+	);
+}
+add_action( 'init', __NAMESPACE__ . '\register_block' );
+
+/**
+ * Render callback.
+ *
+ * @param array  $attributes Array containing the block attributes.
+ * @param string $content    String containing the block content.
+ *
+ * @return string
+ */
+function render_block( $attributes, $content ) {
+	Jetpack_Gutenberg::load_styles_as_required( PARENT_NAME );
+
+	return $content;
+}