init

wp-content/plugins/jetpack/extensions/blocks/sharing-buttons/sharing-buttons.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Sharing Buttons Block.
+ *
+ * @since 11.x
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\Sharing_Buttons;
+
+use Automattic\Jetpack\Blocks;
+/**
+ * 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(
+		__DIR__,
+		array( 'render_callback' => __NAMESPACE__ . '\render_block' )
+	);
+}
+add_action( 'init', __NAMESPACE__ . '\register_block' );
+
+/**
+ * Sharing Buttons block registration/dependency declaration.
+ *
+ * @param array  $attr    Array containing the Sharing Buttons block attributes.
+ * @param string $content String containing the Sharing Buttons block content.
+ *
+ * @return string
+ */
+function render_block( $attr, $content ) {
+	// Render nothing in other contexts than frontend (i.e. feed, emails, API, etc.).
+	if ( ! jetpack_is_frontend() ) {
+		return '';
+	}
+
+	return $content;
+}