FEATURE: If you don't select any topics to "Dissmiss Read" it does all

by filter.

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

@@ -28,6 +28,12 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
       this.send('loading');
       Discourse.TopicList.find(filter).then(function(list) {
         self.setProperties({ model: list, selected: [] });
+
+        var tracking = Discourse.TopicTrackingState.current();
+        if (tracking) {
+          tracking.sync(list, filter);
+        }
+
         self.send('loadingComplete');
       });
     },
@@ -43,12 +49,13 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
           operation = { type: 'change_notification_level',
                         notification_level: Discourse.Topic.NotificationLevel.REGULAR };
 
+      var promise;
       if (selected.length > 0) {
-        Discourse.Topic.bulkOperation(selected, operation).then(function() {
-          self.send('refresh');
-        });
+        promise = Discourse.Topic.bulkOperation(selected, operation);
       } else {
+        promise = Discourse.Topic.bulkOperationByFilter(this.get('filter'), operation);
       }
+      promise.then(function() { self.send('refresh'); });
     }
   },
 

app/assets/javascripts/discourse/models/topic.js

@@ -420,6 +420,13 @@ Discourse.Topic.reopenClass({
         operation: operation
       }
     });
+  },
+
+  bulkOperationByFilter: function(filter, operation) {
+    return Discourse.ajax("/topics/bulk", {
+      type: 'PUT',
+      data: { filter: filter, operation: operation }
+    });
   }
 
 });

app/controllers/topics_controller.rb

@@ -265,7 +265,15 @@ class TopicsController < ApplicationController
   end
 
   def bulk
-    topic_ids = params.require(:topic_ids).map {|t| t.to_i}
+    if params[:topic_ids].present?
+      topic_ids = params[:topic_ids].map {|t| t.to_i}
+    elsif params[:filter] == 'unread'
+      tq = TopicQuery.new(current_user)
+      topic_ids = TopicQuery.unread_filter(tq.joined_topic_user).listable_topics.pluck(:id)
+    else
+      raise ActionController::ParameterMissing.new(:topic_ids)
+    end
+
     operation = params.require(:operation).symbolize_keys
     raise ActionController::ParameterMissing.new(:operation_type) if operation[:type].blank?
     operator = TopicsBulkAction.new(current_user, topic_ids, operation)