remember the entered email and reg. code

and display it when going back

also make the input fields disabled when already registered during installation

src/clients/inst_scc.rb

@@ -103,8 +103,17 @@ def register_base_system
         when :network
           ::Registration::Helpers::run_network_configuration
         when :next
+          # do not re-register during installation
+          return :next if ::Registration::Registration.is_registered? && !Mode.normal
+
           email = UI.QueryWidget(:email, :Value)
           reg_code = UI.QueryWidget(:reg_code, :Value)
+
+          # remember the entered values in case user goes back
+          options = ::Registration::Storage::InstallationOptions.instance
+          options.email = email
+          options.reg_code = reg_code
+
           # reset the user input in case an exception is raised
           ret = nil
 
@@ -152,6 +161,7 @@ def scc_credentials_dialog
         _("Unknown product")
 
       base_product_name << " " << ::Registration::SwMgmt.base_version(base_product["version"])
+      options = ::Registration::Storage::InstallationOptions.instance
 
       VBox(
         Mode.installation ?
@@ -169,9 +179,9 @@ def scc_credentials_dialog
 scelerisque a justo. Maecenas bibendum, mauris ut cursus pharetra, mi nibh
 ehicula massa, eu luctus turpis eros eu arcu. Suspendisse iaculis nunc eu."),
             VSpacing(1),
-            MinWidth(33, InputField(Id(:email), _("&Email"))),
+            MinWidth(33, InputField(Id(:email), _("&Email"), options.email)),
             VSpacing(0.5),
-            MinWidth(33, InputField(Id(:reg_code), _("Registration &Code")))
+            MinWidth(33, InputField(Id(:reg_code), _("Registration &Code"), options.reg_code))
           )
         ),
         VSpacing(3),
@@ -196,6 +206,12 @@ def show_scc_credentials_dialog
         GetInstArgs.enable_back,
         GetInstArgs.enable_next || Mode.normal
       )
+
+      # disable the input fields when already registered
+      if ::Registration::Registration.is_registered?
+        UI.ChangeWidget(Id(:email), :Enabled, false)
+        UI.ChangeWidget(Id(:reg_code), :Enabled, false)
+      end
     end
 
     def repo_items(repos)
@@ -636,9 +652,11 @@ def display_registered_dialog
     end
 
     def registration_check
-      return :register unless ::Registration::Registration.is_registered?
-
-      display_registered_dialog
+      if Mode.normal && ::Registration::Registration.is_registered?
+        return display_registered_dialog
+      else
+        return :register
+      end
     end
 
     # UI workflow definition

src/lib/registration/storage.rb

@@ -39,6 +39,16 @@ class BaseProducts < Struct.new(:products)
       include Singleton
     end
 
+    # remember the registered base product
+    class InstallationOptions < Struct.new(:install_updates, :email, :reg_code)
+      include Singleton
+
+      def initialize
+        self.email = ""
+        self.reg_code = ""
+      end
+    end
+
     # AutoYast configuration
     class Config
       include Singleton