From b1602d0e7fe0e83c20911c073d8d76ea862fca06 Mon Sep 17 00:00:00 2001
From: Isaac Janzen <50783505+janzenisaac@users.noreply.github.com>
Date: Thu, 2 Jan 2025 13:51:46 -0600
Subject: [PATCH] DEV: Add `topic-list-item-expand-pinned` value transformer
 (#30537)

- Add `topic-list-item-expand-pinned` value transformer
---
 .../discourse/app/components/topic-list/item.gjs   | 14 ++++++++++----
 .../discourse/app/lib/transformer/registry.js      |  1 +
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/app/assets/javascripts/discourse/app/components/topic-list/item.gjs b/app/assets/javascripts/discourse/app/components/topic-list/item.gjs
index cd18330c1dd..6a9f6a5c0a4 100644
--- a/app/assets/javascripts/discourse/app/components/topic-list/item.gjs
+++ b/app/assets/javascripts/discourse/app/components/topic-list/item.gjs
@@ -55,17 +55,23 @@ export default class Item extends Component {
   }
 
   get expandPinned() {
+    let expandPinned;
     if (
       !this.args.topic.pinned ||
       (this.site.mobileView && !this.siteSettings.show_pinned_excerpt_mobile) ||
       (this.site.desktopView && !this.siteSettings.show_pinned_excerpt_desktop)
     ) {
-      return false;
+      expandPinned = false;
+    } else {
+      expandPinned =
+        (this.args.expandGloballyPinned && this.args.topic.pinned_globally) ||
+        this.args.expandAllPinned;
     }
 
-    return (
-      (this.args.expandGloballyPinned && this.args.topic.pinned_globally) ||
-      this.args.expandAllPinned
+    return applyValueTransformer(
+      "topic-list-item-expand-pinned",
+      expandPinned,
+      { topic: this.args.topic, mobileView: this.site.mobileView }
     );
   }
 
diff --git a/app/assets/javascripts/discourse/app/lib/transformer/registry.js b/app/assets/javascripts/discourse/app/lib/transformer/registry.js
index efc9d56af24..d0f42558f44 100644
--- a/app/assets/javascripts/discourse/app/lib/transformer/registry.js
+++ b/app/assets/javascripts/discourse/app/lib/transformer/registry.js
@@ -25,5 +25,6 @@ export const VALUE_TRANSFORMERS = Object.freeze([
   "topic-list-header-sortable-column",
   "topic-list-class",
   "topic-list-item-class",
+  "topic-list-item-expand-pinned",
   "topic-list-item-mobile-layout",
 ]);