Register clients in manager on map requests

lib/uh/wm/manager.rb

@@ -7,12 +7,13 @@ module Uh
                     Events::SUBSTRUCTURE_NOTIFY_MASK |
                     Events::STRUCTURE_NOTIFY_MASK
 
-      attr_reader :modifier, :display
+      attr_reader :modifier, :display, :clients
 
       def initialize events, modifier, display = Display.new
         @events   = events
         @modifier = modifier
         @display  = display
+        @clients  = []
       end
 
       def connect
@@ -50,7 +51,8 @@ module Uh
             event.key.to_sym
           @events.emit :key, *key_selector
         when :map_request
-          @events.emit :manage, args: event.window
+          @clients << client = Client.new(event.window)
+          @events.emit :manage, args: client
         end
       end