Highlight active menu item

lib/style.rb

@@ -17,6 +17,7 @@ class Style
     Curses.init_pair editing_text_id,     editing_text_color,     editing_text_bg
     Curses.init_pair cursor_id,           cursor_color,           cursor_bg
     Curses.init_pair menu_item_id,        menu_item_color,        menu_item_bg
+    Curses.init_pair active_menu_item_id, active_menu_item_color, active_menu_item_bg
     Curses.init_pair message_time_id,     message_time_color,     message_time_bg
     Curses.init_pair message_author_id,   message_author_color,   message_author_bg
     Curses.init_pair online_mark_id,      online_mark_color,      online_mark_bg
@@ -65,6 +66,13 @@ class Style
     Curses.attroff menu_item_attr
   end
 
+  def active_menu_item
+    Curses.attron active_menu_item_attr
+    yield
+  ensure
+    Curses.attroff active_menu_item_attr
+  end
+
   def message_time
     Curses.attron message_time_attr
     yield
@@ -119,6 +127,10 @@ private
     Curses.color_pair menu_item_id
   end
 
+  def active_menu_item_attr
+    Curses.color_pair active_menu_item_id
+  end
+
   def message_time_attr
     Curses.color_pair message_time_id
   end
@@ -159,6 +171,10 @@ private
     @menu_item_id ||= self.class.counter
   end
 
+  def active_menu_item_id
+    @active_menu_item_id ||= self.class.counter
+  end
+
   def message_time_id
     @message_time_id ||= self.class.counter
   end
@@ -223,6 +239,14 @@ private
     Curses::COLOR_CYAN
   end
 
+  def active_menu_item_color
+    Curses::COLOR_BLACK
+  end
+
+  def active_menu_item_bg
+    Curses::COLOR_BLUE
+  end
+
   def message_time_color
     Curses::COLOR_CYAN
   end

lib/widgets/menu/items.rb

@@ -11,6 +11,14 @@ module Widgets
 
       SIDE_PADDING = 3
 
+      attr_reader :active
+
+      def initialize(*)
+        super
+
+        @active = 0
+      end
+
       def draw
         ITEMS.each_with_index do |item, index|
           draw_item index, item
@@ -18,7 +26,7 @@ module Widgets
       end
 
       def draw_item(index, name)
-        Style.default.menu_item do
+        Style.default.public_send(index == active ? :active_menu_item : :menu_item) do
           setpos SIDE_PADDING, 4 * index + 0
           Curses.addstr ' ' * (width - 2 * SIDE_PADDING)