If the topic can be summarized, expand the topic map by default

app/assets/javascripts/discourse/components/topic_map_component.js

@@ -1,7 +1,7 @@
 /**
-  The information that sits in the topic map.
+  The topic map underneath the first post of a topic.
 
-  @class DiscourseTopicInformationComponent
+  @class DiscourseTopicMapComponent
   @extends Ember.Component
   @namespace Discourse
   @module Discourse
@@ -9,12 +9,19 @@
 
 var LINKS_SHOWN = 5;
 
-Discourse.DiscourseTopicInformationComponent = Ember.Component.extend({
+Discourse.DiscourseTopicMapComponent = Ember.Component.extend({
   mapCollapsed: true,
-  templateName: 'components/discourse-topic-information',
+  templateName: 'components/discourse-topic-map',
   details: Em.computed.alias('topic.details'),
   allLinksShown: false,
 
+  init: function() {
+    this._super();
+
+    // If the topic has a summary, expand the map by default
+    this.set('mapCollapsed', !this.get('topic.has_summary'));
+  },
+
   toggleMapClass: function() {
     return this.get('mapCollapsed') ? 'icon-chevron-down' : 'icon-chevron-up';
   }.property('mapCollapsed'),

app/assets/javascripts/discourse/templates/post.js.handlebars

@@ -70,7 +70,7 @@
       </div>
       {{view Discourse.RepliesView content=replies postView=view}}
       {{discourse-action-history post=this}}
-      {{view Discourse.TopicMapView post=this topic=controller.model}}
+      {{view Discourse.TopicMapContainerView post=this topic=controller.model}}
     </div>
 
     <div class='span5 gutter'>

app/assets/javascripts/discourse/views/topic_map_container_view.js

@@ -1,12 +1,13 @@
 /**
-  This view handles rendering of the map of the topic under the first post
+  This view contains the topic map as well as other relevant information underneath the
+  first post.
 
-  @class TopicMapView
+  @class TopicMapContainerView
   @extends Discourse.View
   @namespace Discourse
   @module Discourse
 **/
-Discourse.TopicMapView = Discourse.ContainerView.extend({
+Discourse.TopicMapContainerView = Discourse.ContainerView.extend({
   classNameBindings: ['hidden', ':topic-map'],
   shouldRerender: Discourse.View.renderIfChanged('topic.posts_count'),
 
@@ -23,7 +24,7 @@ Discourse.TopicMapView = Discourse.ContainerView.extend({
     this._super();
     if (this.get('hidden')) return;
 
-    this.attachViewWithArgs({ topic: this.get('topic') }, Discourse.DiscourseTopicInformationComponent);
+    this.attachViewWithArgs({ topic: this.get('topic') }, Discourse.DiscourseTopicMapComponent);
     this.trigger('appendMapInformation', this);
   },
 

config/locales/client.en.yml

@@ -383,8 +383,8 @@ en:
     summary:
       enabled_description: "You're viewing a summary of this topic. To see all posts again, click below."
       description: "There are <b>{{count}}</b> posts in this topic. That's a lot! Would you like to save time by showing only the most relevant posts?"
-      enable: 'Switch to Summary view'
-      disable: 'Cancel Summary view'
+      enable: 'Summarize This Topic'
+      disable: 'Cancel Summary'
 
     private_message_info:
       title: "Private Message"