From a2e5fc2021949b3ab1df64e3b34ddf1b42a51dca Mon Sep 17 00:00:00 2001
From: Matthias Pfefferle <pfefferle@users.noreply.github.com>
Date: Tue, 12 Dec 2023 14:01:43 +0100
Subject: [PATCH] Add CSS class for AP comments to allow custom designs (#602)

* Add CSS class for AP comments to allow custom designs

fix #600

* updated changelog
---
 README.md                      |  1 +
 includes/class-activitypub.php | 20 ++++++++++++++++++++
 readme.txt                     |  1 +
 3 files changed, 22 insertions(+)

diff --git a/README.md b/README.md
index 2f7a22d..e83f274 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,7 @@ Project maintained on GitHub at [automattic/wordpress-activitypub](https://githu
 * Fixed: Normalize attributes that can have mixed value types
 * Added: URL support for WebFinger
 * Added: Make Post-Template filterable
+* Addes: CSS class for ActivityPub comments to allow custom designs
 
 ### 1.3.0 ###
 
diff --git a/includes/class-activitypub.php b/includes/class-activitypub.php
index 8fbdbbf..0ae3c36 100644
--- a/includes/class-activitypub.php
+++ b/includes/class-activitypub.php
@@ -39,6 +39,8 @@ class Activitypub {
 
 		\add_action( 'in_plugin_update_message-' . ACTIVITYPUB_PLUGIN_BASENAME, array( self::class, 'plugin_update_message' ) );
 
+		\add_filter( 'comment_class', array( self::class, 'comment_class' ), 10, 3 );
+
 		// register several post_types
 		self::register_post_types();
 	}
@@ -410,4 +412,22 @@ class Activitypub {
 
 		do_action( 'activitypub_after_register_post_type' );
 	}
+
+	/**
+	 * Filters the CSS classes to add an ActivityPub class.
+	 *
+	 * @param string[] $classes    An array of comment classes.
+	 * @param string[] $css_class  An array of additional classes added to the list.
+	 * @param string   $comment_id The comment ID as a numeric string.
+	 *
+	 * @return string[] An array of classes.
+	 */
+	public static function comment_class( $classes, $css_class, $comment_id ) {
+		// check if ActivityPub comment
+		if ( 'activitypub' === get_comment_meta( $comment_id, 'protocol', true ) ) {
+			$classes[] = 'activitypub-comment';
+		}
+
+		return $classes;
+	}
 }
diff --git a/readme.txt b/readme.txt
index 51235c1..40f210a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -111,6 +111,7 @@ Project maintained on GitHub at [automattic/wordpress-activitypub](https://githu
 * Fixed: Normalize attributes that can have mixed value types
 * Added: URL support for WebFinger
 * Added: Make Post-Template filterable
+* Addes: CSS class for ActivityPub comments to allow custom designs
 
 = 1.3.0 =