From 2f932812e01be684d7871186fd6f41d57a195f64 Mon Sep 17 00:00:00 2001
From: Jarek Radosz <jradosz@gmail.com>
Date: Fri, 29 Nov 2024 21:32:48 +0100
Subject: [PATCH] DEV: Add `topic-list-header-sortable-column` transformer
 (#29917)

For conditionally disabling ability to sort on specific columns in the topic list.
---
 .../discourse/app/components/topic-list/header.gjs       | 9 ++++++++-
 .../discourse/app/components/topic-list/list.gjs         | 6 +-----
 .../discourse/app/lib/transformer/registry.js            | 1 +
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/app/assets/javascripts/discourse/app/components/topic-list/header.gjs b/app/assets/javascripts/discourse/app/components/topic-list/header.gjs
index 9f9edbac507..f8879b73f60 100644
--- a/app/assets/javascripts/discourse/app/components/topic-list/header.gjs
+++ b/app/assets/javascripts/discourse/app/components/topic-list/header.gjs
@@ -1,8 +1,15 @@
+import { hash } from "@ember/helper";
+import { applyValueTransformer } from "discourse/lib/transformer";
+
 const Header = <template>
   <tr>
     {{#each @columns as |entry|}}
       <entry.value.header
-        @sortable={{@sortable}}
+        @sortable={{applyValueTransformer
+          "topic-list-header-sortable-column"
+          @sortable
+          (hash category=@category name=@name)
+        }}
         @activeOrder={{@order}}
         @changeSort={{@changeSort}}
         @ascending={{@ascending}}
diff --git a/app/assets/javascripts/discourse/app/components/topic-list/list.gjs b/app/assets/javascripts/discourse/app/components/topic-list/list.gjs
index 68260ca8553..71af1e73ad8 100644
--- a/app/assets/javascripts/discourse/app/components/topic-list/list.gjs
+++ b/app/assets/javascripts/discourse/app/components/topic-list/list.gjs
@@ -121,10 +121,6 @@ export default class TopicList extends Component {
     return !this.bulkSelectEnabled && this.args.canBulkSelect;
   }
 
-  get sortable() {
-    return !!this.args.changeSort;
-  }
-
   get showTopicPostBadges() {
     return this.args.showTopicPostBadges ?? true;
   }
@@ -189,7 +185,7 @@ export default class TopicList extends Component {
           @order={{@order}}
           @changeSort={{@changeSort}}
           @ascending={{@ascending}}
-          @sortable={{this.sortable}}
+          @sortable={{@changeSort}}
           @listTitle={{or @listTitle "topic.title"}}
           @bulkSelectHelper={{@bulkSelectHelper}}
           @bulkSelectEnabled={{this.bulkSelectEnabled}}
diff --git a/app/assets/javascripts/discourse/app/lib/transformer/registry.js b/app/assets/javascripts/discourse/app/lib/transformer/registry.js
index 2fbfe43873e..ee3f80d5fa7 100644
--- a/app/assets/javascripts/discourse/app/lib/transformer/registry.js
+++ b/app/assets/javascripts/discourse/app/lib/transformer/registry.js
@@ -16,4 +16,5 @@ export const VALUE_TRANSFORMERS = Object.freeze([
   "post-menu-buttons",
   "small-user-attrs",
   "topic-list-columns",
+  "topic-list-header-sortable-column",
 ]);