From 92df8fac50da1e21cec553f3a0c906e96de6143a Mon Sep 17 00:00:00 2001
From: Corey McKrill <916023+coreymckrill@users.noreply.github.com>
Date: Mon, 7 Mar 2022 13:49:10 -0800
Subject: [PATCH] Add an mu-plugin for tweaking the Stream plugin to meet our
 needs (#172)

For now this just replaces Stream's posts connector with our own modified version so that it will log post changes correctly when made in the block editor. Other tweaks may follow.
---
 mu-plugins/loader.php                         |  1 +
 .../stream-tweaks/class-connector-posts.php   | 22 ++++++++++++
 mu-plugins/stream-tweaks/index.php            | 34 +++++++++++++++++++
 3 files changed, 57 insertions(+)
 create mode 100644 mu-plugins/stream-tweaks/class-connector-posts.php
 create mode 100644 mu-plugins/stream-tweaks/index.php

diff --git a/mu-plugins/loader.php b/mu-plugins/loader.php
index f57561faf..8bb6820c6 100644
--- a/mu-plugins/loader.php
+++ b/mu-plugins/loader.php
@@ -6,3 +6,4 @@
 require_once __DIR__ . '/blocks/global-header-footer/blocks.php';
 require_once __DIR__ . '/global-fonts/index.php';
 require_once __DIR__ . '/skip-to/skip-to.php';
+require_once __DIR__ . '/stream-tweaks/index.php';
diff --git a/mu-plugins/stream-tweaks/class-connector-posts.php b/mu-plugins/stream-tweaks/class-connector-posts.php
new file mode 100644
index 000000000..233187a57
--- /dev/null
+++ b/mu-plugins/stream-tweaks/class-connector-posts.php
@@ -0,0 +1,22 @@
+<?php
+/**
+ * Connector for Posts
+ *
+ * This is a hotfix for the Stream plugin to enable logging post changes that happen through an API context (i.e.
+ * in the block editor). This change has been merged in the GitHub repo for the Stream plugin, but as of version
+ * 3.8.2 it has not been released to the plugin directory.
+ */
+
+namespace WordPressdotorg\MU_Plugins\Stream_Tweaks;
+
+/**
+ * Class - Connector_Posts
+ */
+class Connector_Posts extends \WP_Stream\Connector_Posts {
+	/**
+	 * Register connector in the WP Frontend
+	 *
+	 * @var bool
+	 */
+	public $register_frontend = true;
+}
diff --git a/mu-plugins/stream-tweaks/index.php b/mu-plugins/stream-tweaks/index.php
new file mode 100644
index 000000000..9107269b1
--- /dev/null
+++ b/mu-plugins/stream-tweaks/index.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace WordPressdotorg\MU_Plugins\Stream_Tweaks;
+
+add_filter( 'wp_stream_connectors', __NAMESPACE__ . '\replace_posts_connector' );
+
+/**
+ * Substitute Stream's posts connector class for our modified version.
+ *
+ * @param array $connector_classes
+ *
+ * @return mixed
+ */
+function replace_posts_connector( $connector_classes ) {
+	if ( ! function_exists( 'wp_stream_get_instance' ) ) {
+		return $connector_classes;
+	}
+
+	require_once __DIR__ . '/class-connector-posts.php';
+
+	$stream_plugin_instance = wp_stream_get_instance();
+	$new_posts_connector = new Connector_Posts( $stream_plugin_instance->log ); // WordPressdotorg namespaced version.
+
+	// Remove the default posts connector class if it has been initialized.
+	if ( isset( $connector_classes[ $new_posts_connector->name ] ) ) {
+		unset( $connector_classes[ $new_posts_connector->name ] );
+	}
+
+	if ( $new_posts_connector->is_dependency_satisfied() ) {
+		$connector_classes[ $new_posts_connector->name ] = $new_posts_connector;
+	}
+
+	return $connector_classes;
+}