Fixes

kutu.rb

@@ -67,7 +67,6 @@ end
 
 if X.deploy < 0
   raise "Failed to deploy X"
-  exit 1
 end
 
 at_exit { X.cleanup }
@@ -98,12 +97,12 @@ class Node
   end
 end
 
-class Window << Node
+class Window < Node
   attr_accessor :window_id
 
   def initialize(window_id)
     @window_id = window_id
-    super()
+    super
   end
 
   def each_leaf(&block)
@@ -111,11 +110,12 @@ class Window << Node
   end
 end
 
-class WindowBlock << Node
+class WindowBlock < Node
   attr_accessor :children, :direction, :size
 
   def initialize()
     @children = []
+    super
   end
 
   def add_node(node)
@@ -129,11 +129,11 @@ class WindowBlock << Node
   end
 end
 
-class RootWindowBlock << WindowBlock
+class RootWindowBlock < WindowBlock
   attr_accessor :x, :y, :width, :height
 
   def initialize(workspace)
-    super()
+    super
     @x = workspace.x
     @y = workspace.y
     @width = workspace.width
@@ -155,7 +155,7 @@ class Workspace
   def windows
     windows = []
     @untiled_windows.each { |w| windows << w }
-    @tiled_root_block.each_leaf() { |w| windows << w }
+    @tiled_root_block.each_leaf { |w| windows << w }
     windows
   end
 
@@ -172,7 +172,7 @@ class Workspace
   def close_all
     @windows.each_key do |window|
       X.kill window
-      self.remove window
+      remove window
     end
   end
 
@@ -229,7 +229,7 @@ loop do
   event = X.wait_for_event
   case EVENT_TYPES[event[:type]]
   when :create
-    if event[:override_redirect] == 0
+    if event[:override_redirect].zero?
       X.subscribe event[:window]
       X.focus event[:window]
       $workspaces[:main].add event[:window]
@@ -250,19 +250,17 @@ loop do
     $mouse_window = event[:window]
     $mouse_pos_start = X.get_pointer
     $geom_start = X.get_geometry event[:window]
-    if $mousebind_actions[event[:btn]]
-      $mousebind_actions[event[:btn]].call(event)
-    end
+    $mousebind_actions[event[:btn]]&.call(event)
   when :mouse_drag
-    screen_bounds = $monitors[0]
+    screen_bounds = X.get_screen # TODO: use monitor
     mouse_pos = X.get_pointer
     dx = mouse_pos[:x] - $mouse_pos_start[:x]
     dy = mouse_pos[:y] - $mouse_pos_start[:y]
     if $mouse_state == 1
       new_x = [[$geom_start[:x] + dx, screen_bounds[:x]].max,
-                screen_bounds[:x] + screen_bounds[:width] - $geom_start[:width]].min
+               screen_bounds[:x] + screen_bounds[:width] - $geom_start[:width]].min
       new_y = [[$geom_start[:y] + dy, screen_bounds[:y]].max,
-                screen_bounds[:y] + screen_bounds[:height] - $geom_start[:height]].min
+               screen_bounds[:y] + screen_bounds[:height] - $geom_start[:height]].min
       X.move_window $mouse_window, new_x, new_y
     elsif $mouse_state == 3
       X.resize_window $mouse_window,
@@ -279,12 +277,10 @@ loop do
       $geom_start      = nil
     end
   when :key_press
-    if $keybind_actions[event[:btn]]
-      $keybind_actions[event[:btn]].call(event)
-    end
+    $keybind_actions[event[:btn]]&.call(event)
   when :key_release
     # TODO
   when :configured
     # TODO
   end
-end
+end