FEATURE: Can select topics and hit Dismiss Read on the /unread filter

app/assets/javascripts/discourse/controllers/discovery_topics_controller.js

@@ -27,7 +27,7 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
 
       this.send('loading');
       Discourse.TopicList.find(filter).then(function(list) {
-        self.set('model', list);
+        self.setProperties({ model: list, selected: [] });
         self.send('loadingComplete');
       });
     },
@@ -35,13 +35,32 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
     toggleBulkSelect: function() {
       this.toggleProperty('bulkSelectEnabled');
       this.get('selected').clear();
+    },
+
+    dismissRead: function() {
+      var self = this,
+          selected = this.get('selected'),
+          operation = { type: 'change_notification_level',
+                        notification_level: Discourse.Topic.NotificationLevel.REGULAR };
+
+      if (selected.length > 0) {
+        Discourse.Topic.bulkOperation(selected, operation).then(function() {
+          self.send('refresh');
+        });
+      } else {
+      }
     }
   },
 
+
   topicTrackingState: function() {
     return Discourse.TopicTrackingState.current();
   }.property(),
 
+  showDismissRead: function() {
+    return this.get('filter') === 'unread' && this.get('topics.length') > 0;
+  }.property('filter', 'topics.length'),
+
   canBulkSelect: Em.computed.alias('currentUser.staff'),
   hasTopics: Em.computed.gt('topics.length', 0),
   showTable: Em.computed.or('hasTopics', 'topicTrackingState.hasIncoming'),

app/assets/javascripts/discourse/routes/discovery_route_builders.js

@@ -34,7 +34,12 @@ function buildTopicRoute(filter) {
         Discourse.set('title', I18n.t('filters.with_topics', {filter: filterText}));
       }
 
-      this.controllerFor('discoveryTopics').setProperties({ model: model, category: null, period: period });
+      this.controllerFor('discoveryTopics').setProperties({
+        model: model,
+        category: null,
+        period: period,
+        selected: [],
+      });
 
       // If there's a draft, open the create topic composer
       if (model.draft) {
@@ -108,6 +113,7 @@ function buildCategoryRoute(filter, params) {
         model: topics,
         category: model,
         period: period,
+        selected: [],
         noSubcategories: params && !!params.no_subcategories
       });
 

app/assets/javascripts/discourse/templates/discovery/topics.js.handlebars

@@ -4,6 +4,10 @@
   </div>
 {{/if}}
 
+{{#if showDismissRead}}
+  <button class='btn dismiss-read' {{action dismissRead}}>{{i18n topics.bulk.dismiss_read}}</button>
+{{/if}}
+
 <div class='contents'>
   {{#if showTable}}
     <table id='topic-list'>

app/assets/stylesheets/desktop/topic-list.scss

@@ -546,3 +546,8 @@ ol.category-breadcrumb {
     padding: 3px 0 3px 6px;
   }
 }
+
+button.dismiss-read {
+  float: right;
+  margin-bottom: 5px;
+}

config/locales/client.en.yml

@@ -628,6 +628,7 @@ en:
 
     topics:
       bulk:
+        dismiss_read: "Dismiss Read"
         toggle: "toggle bulk selection of topics"
         actions: "Bulk Actions"
         change_category: "Change Category"