FEATURE: Button to reset new

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

@@ -43,6 +43,15 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
       this.get('selected').clear();
     },
 
+    resetNew: function() {
+      var self = this;
+
+      Discourse.TopicTrackingState.current().resetNew();
+      Discourse.Topic.resetNew().then(function() {
+        self.send('refresh');
+      });
+    },
+
     dismissRead: function() {
       var self = this,
           selected = this.get('selected'),
@@ -68,6 +77,10 @@ Discourse.DiscoveryTopicsController = Discourse.DiscoveryController.extend({
     return this.get('filter') === 'unread' && this.get('topics.length') > 0;
   }.property('filter', 'topics.length'),
 
+  showResetNew: function() {
+    return this.get('filter') === 'new' && 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/models/topic.js

@@ -428,8 +428,13 @@ Discourse.Topic.reopenClass({
       type: 'PUT',
       data: { filter: filter, operation: operation }
     });
+  },
+
+  resetNew: function() {
+    return Discourse.ajax("/topics/reset-new", {type: 'PUT'});
   }
 
+
 });
 
 

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

@@ -145,6 +145,15 @@ Discourse.TopicTrackingState = Discourse.Model.extend({
       .length;
   },
 
+  resetNew: function() {
+    var self = this;
+    Object.keys(this.states).forEach(function (id) {
+      if (self.states[id].last_read_post_number === null) {
+        delete self.states[id];
+      }
+    });
+  },
+
   countUnread: function(category_name){
     return _.chain(this.states)
       .where(function(topic){

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

@@ -68,6 +68,9 @@
     {{#if showDismissRead}}
       <button class='btn dismiss-read' {{action dismissRead}}>{{i18n topics.bulk.dismiss_read}}</button>
     {{/if}}
+    {{#if showResetNew}}
+      <button class='btn dismiss-read' {{action resetNew}}>{{i18n topics.bulk.mark_seen}}</button>
+    {{/if}}
 
     <h3>
       {{#if latest}}

app/controllers/topics_controller.rb

@@ -21,7 +21,8 @@ class TopicsController < ApplicationController
                                           :merge_topic,
                                           :clear_pin,
                                           :autoclose,
-                                          :bulk]
+                                          :bulk,
+                                          :reset_new]
 
   before_filter :consider_user_for_promotion, only: :show
 
@@ -281,6 +282,11 @@ class TopicsController < ApplicationController
     render_json_dump topic_ids: changed_topic_ids
   end
 
+  def reset_new
+    current_user.user_stat.update_column(:new_since, Time.now)
+    render nothing: true
+  end
+
   private
 
   def toggle_mute

config/locales/client.en.yml

@@ -630,6 +630,7 @@ en:
       bulk:
         reset_read: "Reset Read"
         dismiss_read: "Dismiss Read"
+        mark_seen: "Mark Seen"
         toggle: "toggle bulk selection of topics"
         actions: "Bulk Actions"
         change_category: "Change Category"

config/routes.rb

@@ -281,6 +281,7 @@ Discourse::Application.routes.draw do
   put "t/:id" => "topics#update"
   delete "t/:id" => "topics#destroy"
   put "topics/bulk"
+  put "topics/reset-new" => 'topics#reset_new'
   post "topics/timings"
   get "topics/similar_to"
   get "topics/created-by/:username" => "list#topics_by", as: "topics_by", constraints: {username: USERNAME_ROUTE_FORMAT}

spec/controllers/topics_controller_spec.rb

@@ -811,4 +811,25 @@ describe TopicsController do
       end
     end
   end
+
+
+  describe 'reset_new' do
+    it 'needs you to be logged in' do
+      lambda { xhr :put, :reset_new }.should raise_error(Discourse::NotLoggedIn)
+    end
+
+    let(:user) { log_in(:user) }
+
+    it "updates the `new_since` date" do
+      old_date = 2.years.ago
+
+      user.user_stat.update_column(:new_since, old_date)
+
+      xhr :put, :reset_new
+      user.reload
+      user.user_stat.new_since.to_date.should_not == old_date.to_date
+
+    end
+
+  end
 end