stack.rb in gtk4-4.0.0

- old
+ new

@@ -1,6 +1,6 @@
-# Copyright (C) 2014  Ruby-GNOME2 Project Team
+# Copyright (C) 2014-2022  Ruby-GNOME Project Team
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
 # version 2.1 of the License, or (at your option) any later version.
@@ -14,41 +14,37 @@
 # License along with this library; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 module Gtk
   class Stack
-    if method_defined?(:set_visible_child)
-      alias_method :set_visible_child_raw, :set_visible_child
-      def set_visible_child(widget_or_name, transition_type=nil)
-        case widget_or_name
-        when String
-          name = widget_or_name
-        else
-          widget = widget_or_name
-        end
+    alias_method :set_visible_child_raw, :set_visible_child
+    def set_visible_child(widget_or_name, transition_type=nil)
+      case widget_or_name
+      when String
+        name = widget_or_name
+      else
+        widget = widget_or_name
+      end
 
-        if widget
-          set_visible_child_raw(widget)
+      if widget
+        set_visible_child_raw(widget)
+      else
+        if transition_type
+          set_visible_child_full(name, transition_type)
         else
-          if transition_type
-            set_visible_child_full(name, transition_type)
-          else
-            set_visible_child_name(name)
-          end
+          set_visible_child_name(name)
         end
       end
     end
 
-    if method_defined?(:add_titled) and method_defined?(:add_named)
-      def add(widget, name=nil, title=nil)
-        if title
-          add_titled(widget, name, title)
-        elsif name
-          add_named(widget, name)
-        else
-          super(widget)
-        end
-        self
+    def add(widget, name=nil, title=nil)
+      if title
+        add_titled(widget, name, title)
+      elsif name
+        add_named(widget, name)
+      else
+        add_child(widget)
       end
+      self
     end
   end
 end