Handle and forward expose events to the layout

features/manager/expose.feature

@@ -0,0 +1,5 @@
+Feature: expose events handling
+
+  Scenario: logs when an expose event is handled
+    Given uhwm is running
+    Then the output must match /expos.+window.+\d+/i

lib/uh/wm/manager.rb

@@ -120,6 +120,10 @@ module Uh
         destroy event.window
       end
 
+      def handle_expose event
+        @events.emit :expose, args: event.window
+      end
+
       def handle_map_request event
         map event.window
       end

lib/uh/wm/runner.rb

@@ -123,6 +123,10 @@ module Uh
           log "Updating client #{client}"
           layout.update client
         end
+        @events.on :expose do |window|
+          log "Exposing window: #{window}"
+          layout.expose window
+        end
       end
 
       def register_keybinds_hooks