Make it work

src/ruby/controller.rb

@@ -0,0 +1,20 @@
+def create_workspace(monitor)
+  monitor[:workspaces] << Workspace.new($monitors.key(monitor))
+  monitor[:selected_workspace] = monitor[:workspaces].length - 1
+end
+
+def delete_workspace(n, monitor)
+  return if monitor[:workspaces].length <= 1
+  monitor[:workspaces][n].windows.each { |w| monitor[:workspaces][(n - 1) % monitor[:workspaces].length].drop 0, w }
+  monitor[:workspaces].delete_at n
+  if monitor[:selected_workspace] >= n
+    monitor[:selected_workspace] -= 1
+  end
+end
+
+def select_workspace(n, monitor)
+  monitor[:workspaces].each { |w| w.hide if w != monitor[:workspaces][n] }
+  monitor[:selected_workspace] = n
+  monitor[:workspaces][n].show
+  monitor[:workspaces][n].compute_tiled!
+end