FEATURE: flags for suppressing pinned expansion

To suppress pinned excerpt expansion
on mobile set "show_pinned_excerpt_mobile" to false

To suppress pinned excerpt expansion
on desktop set "show_pinned_excerpt_desktop" to false

app/assets/javascripts/discourse/components/topic-list-item.js.es6

@@ -55,6 +55,16 @@ export default Ember.Component.extend(StringBuffer, {
       return false;
     }
 
+    if (this.site.mobileView) {
+      if (!this.siteSettings.show_pinned_excerpt_mobile) {
+        return false;
+      }
+    } else {
+      if (!this.siteSettings.show_pinned_excerpt_desktop) {
+        return false;
+      }
+    }
+
     if (this.get('expandGloballyPinned') && this.get('topic.pinned_globally')) {
       return true;
     }

app/assets/javascripts/discourse/templates/mobile/discovery/topics.hbs

@@ -17,7 +17,10 @@
         showPosters=true
         currentUser=currentUser
         hideCategory=model.hideCategory
-        topics=model.topics}}
+        topics=model.topics
+        expandGloballyPinned=expandGloballyPinned
+        expandAllPinned=expandAllPinned
+        }}
   {{/if}}
 {{/discovery-topics-list}}
 

app/assets/javascripts/discourse/templates/mobile/list/topic_list_item.raw.hbs

@@ -1,5 +1,5 @@
 <td>
-  {{~#unless topic.hasExcerpt}}
+  {{~#unless expandPinned}}
   <div class='pull-left'>
     <a href="{{topic.lastPostUrl}}">{{avatar topic.lastPoster imageSize="large"}}</a>
   </div>
@@ -13,7 +13,9 @@
       {{#if topic.unseen}}
         <span class="badge-notification new-topic"></span>
       {{/if}}
+      {{~#if expandPinned}}
       {{raw "list/topic-excerpt" topic=topic}}
+      {{/if~}}
     </div>
 
     <div class='pull-right'>

config/locales/server.en.yml

@@ -852,6 +852,8 @@ en:
     exclude_rel_nofollow_domains: "A list of domains where nofollow should not be added to links. tld.com will automatically allow sub.tld.com as well. As a minimum, you should add the top-level domain of this site to help web crawlers find all content. If other parts of your website are at other domains, add those too."
 
     post_excerpt_maxlength: "Maximum length of a post excerpt / summary."
+    show_pinned_excerpt_mobile: "Show excerpt on pinned topics in mobile view."
+    show_pinned_excerpt_desktop: "Show excerpt on pinned topics in desktop view."
     post_onebox_maxlength: "Maximum length of a oneboxed Discourse post in characters."
     onebox_domains_whitelist: "A list of domains to allow oneboxing for; these domains should support OpenGraph or oEmbed. Test them at http://iframely.com/debug"
 

config/site_settings.yml

@@ -474,6 +474,12 @@ posting:
     client: true
     default: 0
   post_excerpt_maxlength: 300
+  show_pinned_excerpt_mobile:
+    client: true
+    default: true
+  show_pinned_excerpt_desktop:
+    client: true
+    default: true
   display_name_on_posts:
     client: true
     default: false