Hiding folders with no unread stories in Unread/Focus mode.

media/css/reader.css

@@ -784,6 +784,7 @@ body.NB-theme-serif #story_pane .NB-feed-story-content {
     opacity: 1;
 }
 .NB-feedlist.NB-selector-active .NB-folder-collapsed .folder,
+.NB-feedlist.NB-selector-active .NB-hidden,
 .NB-socialfeeds-folder.NB-selector-active {
     display: block !important;
     opacity: 1 !important;

media/js/newsblur/models/feeds.js

@@ -6,6 +6,7 @@ NEWSBLUR.Models.Feed = Backbone.Model.extend({
         this.bind('change:ps', this.update_folder_counts);
         this.bind('change:nt', this.update_folder_counts);
         this.bind('change:ng', this.update_folder_counts);
+        this.bind('change:selected', this.update_folder_visibility);
         this.views = [];
         this.folders = [];
     },
@@ -19,9 +20,12 @@ NEWSBLUR.Models.Feed = Backbone.Model.extend({
     update_folder_counts: function() {
         _.each(this.folders, function(folder) {
             folder.trigger('change:counts');
-            if (folder.parent_folder) {
+        });
-                folder.parent_folder.trigger('change:counts');
+    },
-            }
+    
+    update_folder_visibility: function() {
+        _.each(this.folders, function(folder) {
+            folder.trigger('change:feed_selected');
         });
     },
     
@@ -106,6 +110,23 @@ NEWSBLUR.Models.Feed = Backbone.Model.extend({
             nt: this.get('nt'),
             ng: this.get('ng')
         };
+    },
+    
+    has_unreads: function(options) {
+        options = options || {};
+        var unread_view = NEWSBLUR.assets.preference('unread_view');
+        
+        if (options.include_selected && this.get('selected')) {
+            return true;
+        }
+        
+        if (unread_view <= -1) {
+            return !!(this.get('ng') || this.get('nt') || this.get('ps'));
+        } else if (unread_view == 0) {
+            return !!(this.get('nt') || this.get('ps'));
+        } else if (unread_view > 0) {
+            return !!(this.get('ps'));
+        }
     }
     
 });

media/js/newsblur/models/folders.js

@@ -84,6 +84,16 @@ NEWSBLUR.Models.FeedOrFolder = Backbone.Model.extend({
         var feed_ids_in_folder = this.feed_ids_in_folder();
         NEWSBLUR.assets.delete_folder(folder_title, in_folder, feed_ids_in_folder);
         this.trigger('delete');
+    },
+    
+    has_unreads: function(options) {
+        options = options || {};
+
+        if (options.include_selected && this.get('selected')) {
+            return true;
+        }
+        
+        return this.folders.has_unreads(options);
     }
     
 });
@@ -95,9 +105,12 @@ NEWSBLUR.Collections.Folders = Backbone.Collection.extend({
     },
     
     initialize: function(models, options) {
+        _.bindAll(this, 'propagate_feed_selected');
         this.options = options || {};
         this.parent_folder = options && options.parent_folder;
         this.comparator = NEWSBLUR.Collections.Folders.comparator;
+        this.bind('change:feed_selected', this.propagate_feed_selected);
+        this.bind('change:counts', this.propagate_change_counts);
     },
     
     model: NEWSBLUR.Models.FeedOrFolder,
@@ -199,9 +212,43 @@ NEWSBLUR.Collections.Folders = Backbone.Collection.extend({
             ng: 0
         });
         
-        return counts;
+        this.counts = counts;
-    }
         
+        return counts;
+    },
+    
+    has_unreads: function(options) {
+        options = options || {};
+        
+        return this.any(function(item) {
+            if (item.is_feed()) {
+                return item.feed.has_unreads(options);
+            } else if (item.is_folder()) {
+                return item.has_unreads(options);
+            }
+        });
+    },
+        
+    propagate_feed_selected: function() {
+        if (this.parent_folder) {
+            this.parent_folder.trigger('change:feed_selected');
+        }
+    },
+
+    propagate_change_counts: function() {
+        if (this.parent_folder) {
+            this.parent_folder.trigger('change:counts');
+        }
+    },
+    
+    update_all_folder_visibility: function() {
+        this.each(function(item) {
+            if (item.is_folder()) {
+                item.folders.trigger('change:counts');
+                item.folders.update_all_folder_visibility();
+            }
+        });
+    }
 
 }, {
 

media/js/newsblur/reader/reader.js

@@ -3544,6 +3544,7 @@
             }
             this.show_story_titles_above_intelligence_level({'animate': true, 'follow': true});
             NEWSBLUR.app.sidebar_header.toggle_hide_read_preference();
+            NEWSBLUR.assets.folders.update_all_folder_visibility();
             NEWSBLUR.app.feed_list.scroll_to_show_selected_feed();
             NEWSBLUR.app.feed_list.scroll_to_show_selected_folder();
             

media/js/newsblur/views/feed_title_view.js

@@ -197,6 +197,10 @@ NEWSBLUR.Views.FeedTitleView = Backbone.View.extend({
     select_feed: function() {
         this.$el.toggleClass('selected', this.model.get('selected'));
         this.$el.toggleClass('NB-selected', this.model.get('selected'));
+        
+        _.each(this.folders, function(folder) {
+            folder.view.update_hidden();
+        });
     },
     
     flash_changes: function() {

media/js/newsblur/views/folder_view.js

@@ -23,7 +23,8 @@ NEWSBLUR.Views.Folder = Backbone.View.extend({
     },
     
     initialize: function() {
-        _.bindAll(this, 'update_title', 'update_selected', 'delete_folder', 'check_collapsed');
+        _.bindAll(this, 'update_title', 'update_selected', 'delete_folder', 'check_collapsed',
+                  'update_hidden');
 
         this.options.folder_title = this.model && this.model.get('folder_title');
 
@@ -31,6 +32,9 @@ NEWSBLUR.Views.Folder = Backbone.View.extend({
             // Root folder does not have a model.
             this.model.bind('change:folder_title', this.update_title);
             this.model.bind('change:selected', this.update_selected);
+            this.model.bind('change:selected', this.update_hidden);
+            this.collection.bind('change:feed_selected', this.update_hidden);
+            this.collection.bind('change:counts', this.update_hidden);
             this.model.bind('delete', this.delete_folder);
             if (!this.options.feedbar) {
                 this.model.folder_view = this;
@@ -85,6 +89,7 @@ NEWSBLUR.Views.Folder = Backbone.View.extend({
         }
         
         this.check_collapsed({skip_animation: true});
+        this.update_hidden();
         this.$('.folder_title').eq(0).bind('contextmenu', _.bind(this.show_manage_menu, this));
         
         return this;
@@ -140,6 +145,17 @@ NEWSBLUR.Views.Folder = Backbone.View.extend({
         this.$el.toggleClass('NB-selected', this.model.get('selected'));
     },
     
+    update_hidden: function() {
+        if (!this.model) return;
+        
+        var has_unreads = this.model.has_unreads({include_selected: true});
+        if (has_unreads || !NEWSBLUR.assets.preference('hide_read_feeds')) {
+            this.$el.removeClass('NB-hidden');
+        } else {
+            this.$el.addClass('NB-hidden');
+        }
+    },
+    
     // ===========
     // = Actions =
     // ===========
@@ -174,7 +190,10 @@ NEWSBLUR.Views.Folder = Backbone.View.extend({
             });
         }
         
-        var $counts = new NEWSBLUR.Views.FolderCount({collection: this.collection}).render().$el;
+        this.folder_count = new NEWSBLUR.Views.FolderCount({
+            collection: this.collection
+        }).render();
+        var $counts = this.folder_count.$el;
         if (this.options.feedbar) {
             this.$('.NB-story-title-indicator-count').html($counts.clone());
         } else {