Merge branch 'window-expose-handling'

Handle X expose events, generate an :expose internal event, and
support #expose layout protocol message.

features/layout/protocol.feature

@@ -6,6 +6,9 @@ Feature: layout protocol
       class Layout
         def register display
           puts display
+          display.create_subwindow(Uh::Geo.new(0, 0, 640, 16)).tap do |o|
+            o.show
+          end
         end
 
         def << client
@@ -20,6 +23,10 @@ Feature: layout protocol
         def update client
           puts "testing_#update_#{client.name}"
         end
+
+        def expose window
+          puts "testing_#expose_#{window.id}"
+        end
       end
       """
 
@@ -43,3 +50,7 @@ Feature: layout protocol
     And a window is mapped
     When the window name changes to "testing_new_name"
     Then the output must contain "testing_#update_testing_new_name"
+
+  Scenario: tells the layout about an exposed window with #expose message
+    Given I run uhwm with options -r./layout -l Layout
+    Then the output must match /testing_#expose_\d+/

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

uh-wm.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.executables = s.files.grep(/\Abin\//) { |f| File.basename(f) }
 
   s.add_dependency 'uh',        '2.0.0.pre2'
-  s.add_dependency 'uh-layout', '~> 0.2.2'
+  s.add_dependency 'uh-layout', '~> 0.2.3'
 
   s.add_development_dependency 'aruba',     '~> 0.6'
   s.add_development_dependency 'cucumber',  '~> 2.0'